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Massie GN, Backstrom LJ, Holland DP, Paterson MB, Fuller RA. Methodological rigour and reporting quality of the literature on wildlife rescue, rehabilitation, and release: a global systematic review. Vet Q 2025; 45:1-12. [PMID: 40190231 PMCID: PMC11980188 DOI: 10.1080/01652176.2025.2478138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2024] [Revised: 01/06/2025] [Accepted: 02/24/2025] [Indexed: 04/11/2025] Open
Abstract
Wildlife rescue, rehabilitation, and release is a global practice with a broad body of scientific literature; nonetheless, no studies have assessed and quantified the methodological rigour and reporting quality of this literature. In this PRISMA systematic review, we assessed and quantified the reporting of controls, randomisation, blinding, experimental animal data, and housing and husbandry data in 152 primary studies on wildlife rescue, rehabilitation, and release published between 1980 and 2021. We then tested for associations between reporting and study characteristics. Of the 152 reviewed studies, one study reported a control, randomisation, and blinding; 17 studies reported species, age, sex, weight, and body condition; and 14 studies reported housing size, housing location, type of food, provision of water, and provision of enrichment. No study reported all 13 of these elements. Studies published in veterinary-focused journals reported lower methodological rigour and had lower reporting quality than studies published in other types of journals. Studies on mammals had higher reporting quality than studies on birds and on reptiles, and studies that included the word "welfare" had higher reporting quality than studies that did not. The overall low methodological rigour and reporting quality of the literature limits study replicability and applicability and impedes meta-analyses.
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Affiliation(s)
- Gloeta N. Massie
- School of the Environment, The University of Queensland, St Lucia, QLD, Australia
| | - Louis J. Backstrom
- School of the Environment, The University of Queensland, St Lucia, QLD, Australia
- School of Mathematics and Statistics, The University of St Andrews, St Andrews, United Kingdom
| | | | - Mandy B.A. Paterson
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
- RSPCA QLD, Wacol, QLD, Australia
| | - Richard A. Fuller
- School of the Environment, The University of Queensland, St Lucia, QLD, Australia
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Zhang Q, Du Y, Xu D, Zhang H, Li Y, Li L, Liu J, Jin X, Guo J, Wen J. Sonic hedgehog promotes Schwann cell proliferation through PI3K/AKT/cyclin E1 pathway. Tissue Cell 2025; 95:102858. [PMID: 40106859 DOI: 10.1016/j.tice.2025.102858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2024] [Revised: 02/18/2025] [Accepted: 03/11/2025] [Indexed: 03/22/2025]
Abstract
The proliferation of Schwann cells (SCs) is essential for both the development and regeneration of peripheral nervous system (PNS). Sonic hedgehog (Shh), a multifunctional signaling protein, plays pivotal roles in pattern formation, cell proliferation and cell survival during embryogenesis and tissue repair. While up-regulation of Shh in neurons and SCs following peripheral nerve injury has been associated with enhanced nerve regeneration its specific regulatory effects on SC proliferation remain poorly defined. In this study, we demonstrate dual expression patterns of Shh: significant up regulation in repair SCs post-injury and sustained high expression in immature SCs during developmental stages. Through lentivirus-mediated Shh knockdown in cultured SCs, we revealed that Shh silencing markedly suppresses SC proliferation by inducing G2/M-phase arrest. Transcriptomic profiling identified cell cycle dysregulation upon Shh depletion, characterized by diminished cyclin E1 expression. In mechanism, Shh maintains proliferative capacity through PI3K/AKT signaling activation, as evidenced by pathway inhibition following Shh silencing and subsequent rescue of proliferation deficits with PI3K/AKT agonists. These findings establish the PI3K/AKT/cyclin E1 axis as a central mechanism underlying Shh-mediated SC proliferation control. Our work elucidates the dual regulatory role of Shh in developmental and regenerative contexts while highlighting its potential as a therapeutic target for inherited peripheral neuropathies and peripheral nerve repair.
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Affiliation(s)
- Qi Zhang
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Yunjing Du
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Danyang Xu
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Huimei Zhang
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Yanyi Li
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Lixia Li
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Jing Liu
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Xiaobao Jin
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Jiasong Guo
- Department of Histology and Embryology, Southern Medical University, Guangzhou 510515, China
| | - Jinkun Wen
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China; Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China.
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3
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Lei L, Chen CY, Wang YF, Yang X, Guo ZY, Zhang Y. Efficacy of mangiferin, kaempferol, and diosgenin on models of depression: A systematic review and network meta-analysis of rodent studies. Eur J Pharmacol 2025; 997:177555. [PMID: 40139421 DOI: 10.1016/j.ejphar.2025.177555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2025] [Revised: 03/11/2025] [Accepted: 03/24/2025] [Indexed: 03/29/2025]
Abstract
BACKGROUND Mangiferin (MGF), kaempferol (KMP), and diosgenin (DIO) are active compounds extracted from the dried rhizomes of Anemarrhena asphodeloides Bunge. that are proven to have antidepressant activity. However, no studies comprehensively compare and analyze the efficacy of MGF, KMP, and DIO. METHODS We searched electronic databases (e.g., Cochrane Library, Embase, Scopus, and PubMed) for studies of three compounds in rodents from inception to October 2024, performing a systematic review and network meta-analysis. We used animal behavioral tests as outcome indicators, including the forced swimming test, tail suspension test, and sucrose preference test. RESULTS A total of ten studies were included, involving 440 animals and six interventions. In the forced swimming test, the efficacy of fluoxetine was superior to KMP, MGF, and DIO. In the tail suspension test, DIO was more effective than fluoxetine, MGF, and KMP. In the sucrose preference test, the efficacy of fluoxetine was superior to MGF, DIO, and KMP. Specifically, MGF, KMP, and DIO significantly reduced the immobility time of the FST or TST and increased the sucrose preference index. CONCLUSIONS MGF, KMP, and DIO significantly improved depression-like behaviors of rodents, providing evidence for further development of new clinical antidepressants. Also, MGF, KMP, and DIO exert antidepressant effects primarily through anti-inflammatory, anti-oxidative stress, and regulation of neurotrophic factor and neurotransmitter levels.
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Affiliation(s)
- Lan Lei
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Cong-Ya Chen
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yu-Fei Wang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xuan Yang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhen-Yu Guo
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yi Zhang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China.
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Kim SM, Park K, Yun HJ, Kim JM, Choi KH, Park KC. Identification of new small molecules for selective inhibition of SERCA 1 in patient-derived metastatic papillary thyroid cancer. Br J Pharmacol 2025; 182:2392-2408. [PMID: 39924143 DOI: 10.1111/bph.17442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 11/24/2024] [Accepted: 12/03/2024] [Indexed: 02/11/2025] Open
Abstract
BACKGROUND AND PURPOSE Papillary thyroid cancer (PTC) is a general thyroid cancer subtype; however, PTC is associated with metastasis or recurrence via anti-cancer drug resistance, rendering it practically incurable. Therefore, effective and reliable clinical approaches are urgently required. EXPERIMENTAL APPROACH We demonstrated the coordinated up-regulation of sarco/endoplasmic reticulum (ER) calcium ATPase 1 (SERCA1) in metastatic PTC under treatment with sorafenib or lenvatinib. We screened novel drug candidates in a patient-derived lymph node metastatic PTC and compared outcomes with those in non-metastatic and main mass PTC in an in vitro and in vivo model to propose a new clinical strategy. KEY RESULTS In the current study using patient-derived metastatic PTC cells, SERCA1 was considerably increased under sorafenib- or lenvatinib-treated conditions. SERCA is a critical component in cytosolic free calcium regulation and is regulated by calcium/calmodulin-dependent protein kinase 2 alpha (CaMK2α) via NFκB. However, cardiac dysfunction was inevitable in vivo because of non-specific inhibition of SERCA isoforms by conventional SERCA inhibitors. This study designed a therapeutic approach with decreased cardiac dysfunction via SERCA1 isoform-specific inhibition by novel small molecules, CKP1 and CKP2, under severe ER stress conditions in patient-derived metastatic PTC. These novel SERCA1-specific inhibitors remarkably increased tumour shrinkage in the patient-derived metastatic PTC xenograft tumour model without cardiac dysfunction when used in combination with sorafenib or lenvatinib. CONCLUSION AND IMPLICATIONS These outcomes suggest the potential efficacy of the novel combination strategy that uses targeted therapy to treat malignant cancer cells, such as sorafenib- or lenvatinib-resistant cancer cells.
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Affiliation(s)
- Seok-Mo Kim
- Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Institute of Refractory Thyroid Cancer, Yonsei University College of Medicine, Seoul, South Korea
| | - Keunwan Park
- Natural Product Informatics Research Center, KIST Gangneung Institute of Natural Products, Gangneung, South Korea
| | - Hyeok Jun Yun
- Department of Surgery, Thyroid Cancer Center, Gangnam Severance Hospital, Institute of Refractory Thyroid Cancer, Yonsei University College of Medicine, Seoul, South Korea
| | - Jung Min Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyung Hwa Choi
- Department of Urology, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Ki Cheong Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea
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Jiang YC, Guo J, Liu SH, Dai X, Wang CY, Lian LH, Cui ZY, Nan JX, Wu YL. Vincamine ameliorates hepatic fibrosis via inhibiting S100A4-mediated farnesoid X receptor activation: based on liver microenvironment and enterohepatic circulation dependence. Br J Pharmacol 2025; 182:2447-2465. [PMID: 39940076 DOI: 10.1111/bph.17471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 01/07/2025] [Accepted: 01/12/2025] [Indexed: 02/14/2025] Open
Abstract
BACKGROUND AND PURPOSE Vincamine has extensive biological and pharmaceutical activity. We examined the hepatoprotective effects and mechanisms by which vincamine suppresses hepatic fibrosis. EXPERIMENTAL APPROACH Hepatic stellate cells (HSCs), TGF-β stimulated, were cultured with either vincamine, farnesoid X receptor (NR1H4; FXR) agonist or antagonist. Further, C57BL/6 mice were given thioacetamide (TAA) to induce hepatic fibrosis and subsequently treated with vincamine or curcumin. KEY RESULTS Vincamine regulated the deposition of extracellular matrix (ECM), inflammatory factors and S100A4, and up-regulated FXR and TGR5 (GPBA receptor) in activated HSCs, by activating FXR. FXR deficiency blocked vincamine effect on FXR, TGR5, α-smooth muscle actin (α-SMA) and IL1R1 in activated LX-2 cells. Vincamine corrected ECM imbalance, inflammatory secretion and FXR/TGR5 down-regulation in activated LX-2 cells with stimulating medium from LPS-primed THP-1 cells. S100A4 deficiency increased FXR and TGR5, and decreased IL-1β expression in activated THP-1. Further, S100A4 deficiency in activated macrophages could elevate FXR and TGR5 expression in activated LX-2, strengthening the impact of vincamine on α-SMA and IL-1β expression. Further, vincamine reduced serum ALT/AST levels, liver and intestinal histopathological changes, and caused ECM accumulation and protected the intestinal barrier in thioacetamide-induced hepatic fibrosis mice. Vincamine decreased inflammatory factors e.g. caspase 1 and IL-1β, and inhibited the S100A4-mediated FXR-TGR5 pathway. CONCLUSION AND IMPLICATIONS Vincamine significantly reverses hepatic fibrosis via inhibiting S100A4 involved in the crosstalk between macrophages and HSCs, and by activating the FXR-TGR5 pathway. Targeting the S100A4-mediated FXR dependence on modulating the liver environment may be the key target of vincamine in inhibiting hepatic fibrosis.
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Affiliation(s)
- Yu-Chen Jiang
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Jia Guo
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Sai-Hu Liu
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Xu Dai
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Chen-Yu Wang
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Li-Hua Lian
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Zhen-Yu Cui
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
- Jilin Vocational and Technical College, Longjing, China
| | - Ji-Xing Nan
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
| | - Yan-Ling Wu
- Key Laboratory for Traditional Chinese Korean Medicine Research (State Ethnic Affairs); College of Pharmacy, Yanbian University, Yanji, China
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Zou Y, Tao Z, Li P, Yang J, Xu Q, Xu X, Miao Z, Zhao X. Clemastine attenuates subarachnoid haemorrhage pathology in a mouse model via Nrf2/SQSTM1-mediated autophagy. Br J Pharmacol 2025; 182:2730-2753. [PMID: 40052261 DOI: 10.1111/bph.17465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 12/31/2024] [Accepted: 01/03/2025] [Indexed: 05/21/2025] Open
Abstract
BACKGROUND AND PURPOSE Subarachnoid haemorrhage (SAH) is an uncommon and severe subtype of stroke, but the availability of drugs for its treatment is limited. Enhanced autophagy is believed to attenuate SAH pathology; however, autophagy level is tentatively up-regulated and then down-regulated after SAH onset in mice. Clemastine, a first-generation histamine H1R antagonist, is believed to persistently enhance autophagy. However, the precise mechanism of clemastine in the treatment of SAH remains largely elusive. EXPERIMENTAL APPROACH Haemoglobin-induced neuron injury model and autologous-blood-injected SAH-model mice were used to investigate the effects of clemastine in vitro and in vivo, respectively. The expressions of Nrf2/Keap1 and autophagy-related proteins were detected using western blotting and immunofluorescence. Neuronal injury and hyperoxide level were measured via Fluoro-Jade C and dihydroethidium staining. Neurological behaviours were evaluated using modified Garcia Scale, beam balance test, Morris water maze, Y-maze and novel object recognition test. The structures of autophagosomes and mitochondria were visualised using transmission electron microscope. The binding sites of clemastine was predicted and verified using database and drug affinity-responsive target stability. KEY RESULTS Clemastine ameliorated SAH pathogenesis in vivo and in vitro. Moreover, the intraperitoneal injection of clemastine and its oral administration reduced neuronal death and improved cognitive deficits in SAH-model mice. Mechanistically, clemastine directly bound to muscarinic acetylcholine receptor M4, prevented Nrf2 degradation via Nrf2/Keap1/SQSTM1 pathway and promoted Nrf2 nuclear translocation, thus enhancing autophagy-related gene transcription and autophagy activation. CONCLUSIONS AND IMPLICATIONS Clemastine can attenuate SAH pathology via the activation of Nrf2/SQSTM1 autophagy and could be a useful therapeutic in the context of SAH.
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Affiliation(s)
- Yan Zou
- Department of Neurosurgery, Jiangnan University Medical Center, Wuxi, China
| | - Zhen'xing Tao
- Neuroscience Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Peng'peng Li
- Neuroscience Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jie'qiong Yang
- Neuroscience Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Qin'yi Xu
- Department of Hepatobiliary Surgery, Jiangnan University Medical Center, Wuxi, China
| | - Xing Xu
- Department of Neurosurgery, Jiangnan University Medical Center, Wuxi, China
| | - Zeng'li Miao
- Department of Neurosurgery, Jiangnan University Medical Center, Wuxi, China
- Wuxi Neurosurgical Institute, Wuxi, China
| | - Xu'dong Zhao
- Department of Neurosurgery, Jiangnan University Medical Center, Wuxi, China
- Wuxi Neurosurgical Institute, Wuxi, China
- Department of Clinical Medicine, Medical College, Nantong University, Nantong, China
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7
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Li Q, Huang Y, Ban T, Chen K, Zhen X, Dai Q, Zhang G. Serum amyloid A drive microglia shift to a resolving phenotype through Nrf2. Neuropharmacology 2025; 270:110374. [PMID: 39983914 DOI: 10.1016/j.neuropharm.2025.110374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2024] [Revised: 02/17/2025] [Accepted: 02/18/2025] [Indexed: 02/23/2025]
Abstract
Serum amyloid A (SAA) is an acute-phase protein that has been recognized as a diagnostic biomarker for several diseases. However, the functional studies about the effects of SAA on microglial activation seem controversial. Here, we discovered that SAA induces microglial cells polarize to a pro-resolving M2 phenotype by promoting the stability of the transcription factor Nrf2, which specifically regulates microglia towards a pro-resolving phenotype via metabolic reprogramming. Moreover, we identified that the AMPK/mTOR signaling pathway is involved in SAA-induced Nrf2 upregulation. Additionally, SAA protects cultured neuronal cells from MPP+-induced damage, and furthermore, local administration of SAA into the substantia nigra significantly attenuated MPTP-induced dopaminergic neuronal loss, thereby improving motor impairments in mice. In conclusion, for the first time we demonstrate SAA regulate microglial activation by promoting Nrf2 stabilization, ultimately protecting dopaminergic neurons and alleviating MPTP-induced PD-like pathology.
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Affiliation(s)
- Qi Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yiwei Huang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Tao Ban
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Kexin Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China; Join Innovation Center of Hai'an SUDA-, Hai'an Hospital of Traditional Chinese Medicine, Hai'an, Jiangsu, 226600, China
| | - Qijun Dai
- Join Innovation Center of Hai'an SUDA-, Hai'an Hospital of Traditional Chinese Medicine, Hai'an, Jiangsu, 226600, China.
| | - Gufang Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China; Join Innovation Center of Hai'an SUDA-, Hai'an Hospital of Traditional Chinese Medicine, Hai'an, Jiangsu, 226600, China.
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8
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Zeng X, Ma Z, Wen S, Zhou L, Hong W, Wu Z, Cen C, Bai Q, Ding S, Chen X, Wang J, Chen L, Lu W, Wang T. Imatinib aggravates pressure-overload-induced right ventricle failure via JNK/Runx2 pathway. Br J Pharmacol 2025; 182:2560-2581. [PMID: 39965654 DOI: 10.1111/bph.70006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 11/28/2024] [Accepted: 01/14/2025] [Indexed: 02/20/2025] Open
Abstract
BACKGROUND AND PURPOSE Right ventricular (RV) function is the key prognostic determinant of pulmonary hypertension (PH). In PH patients, imatinib treatment decreases pulmonary vascular resistance and improves exercise capacity, but does not change mortality or duration to clinical worsening. Imatinib has been reported to be cardiotoxic in the left heart. We hypothesise that imatinib damages the pressure overloaded RV via its direct effects within the heart, which may counteract its therapeutic effects in haemodynamic improvement of PH. EXPERIMENTAL APPROACH A pulmonary arterial banding (PAB) rat model with fixed pulmonary artery narrowing was performed to avoid changes in RV afterload. KEY RESULTS In PAB rats, imatinib treatment decreased the survival rate and exacerbated RV dysfunction, myocardial hypertrophy, apoptosis and fibrosis. In vitro, imatinib increased cardiomyocyte hypertrophy and did not change cardiac fibroblasts activation; however, imatinib-treated conditioned medium from cardiomyocytes promoted fibroblast activation. Mechanistically, imatinib increased the phosphorylation of c-jun N-terminal kinase (JNK) and the expression of RUNX family transcription factor 2 (Runx2), and subsequently promoted the transcription of thrombospondin 4 (THBS4) and connective tissue growth factor (CTGF) in RV cardiomyocytes. Finally, SP600125, a JNK inhibitor, significantly alleviated imatinib-induced RV failure in PAB rats and enhanced the effects of imatinib on RV function improvement in SU5416 + hypoxia-induced PH rats without affecting pulmonary artery narrowing. CONCLUSION AND IMPLICATIONS We demonstrate for the first time that imatinib aggravates RV failure under pressure overload through JNK/Runx2 pathway, and JNK inhibition improves the therapeutic effects of imatinib on RV function in PH.
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Affiliation(s)
- Xiaohui Zeng
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhuoji Ma
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shanshan Wen
- Chinese Academy of Sciences Guangzhou Institutes of Biomedicine and Health Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Liang Zhou
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wanxian Hong
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhixiong Wu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chunxian Cen
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qianwen Bai
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shangwei Ding
- Department of Ultrasound, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lingdan Chen
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenju Lu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Tao Wang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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9
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Wan F, Qian C, Liu X, Zhong Y, Peng W, Zhang L, Zhan X, Huang Y, Zhang C, Wang J, Si Y, Liu Y. Sculponeatin A induces mitochondrial dysfunction in non-small cell lung cancer through WWP2-mediated degradation of mitochondrial STAT3. Br J Pharmacol 2025; 182:2662-2681. [PMID: 39993792 DOI: 10.1111/bph.17460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 12/20/2024] [Accepted: 12/28/2024] [Indexed: 02/26/2025] Open
Abstract
BACKGROUND AND PURPOSE The phosphorylation of signal transducer and activator of transcription 3 (STAT3) monomer at S727 promotes its mitochondrial localisation and regulates mitochondrial function, thus exerting a protective effect on tumour cells. However, no inhibitor drugs targeting mitochondrial STAT3 (mitoSTAT3) or S727-STAT3 phosphorylation have been identified. Here, we report a novel diterpenoid extracted from Isodon sculponeatus, sculponeatin A (sptA), induces mitochondrial dysfunction in non-small cell lung cancer (NSCLC) by targeting mitoSTAT3 degradation. EXPERIMENTAL APPROACH xCELLigence real-time cell analysis assay and high-content analysis were performed to measure cytotoxicity. Mitochondrial function was assessed by transmission electron microscopy, mitochondrial permeability transition pore opening and Seahorse cellular flux assays. The effects of sptA on the upstream signalling pathway of mitochondrial dysfunction were measured by Western blot, gene alterations and other approaches. Immunofluorescence and live cell imaging were performed to visualise the expression and position of mitoSTAT3. Nude mice and zebrafish were modelled with subcutaneous xenografts. Pharmacokinetics of sptA were examined in rats. Drug toxicity was evaluated in zebrafish. KEY RESULTS sptA inhibited mitochondrial respiration in NSCLC cells. sptA induced mitochondrial dysfunction by promoting the degradation of mitoSTAT3. sptA promoted WW domain containing E3 ubiquitin protein ligase 2 (WWP2)-mediated ubiquitination and degradation of mitoSTAT3 through direct binding. sptA inhibited tumour growth in vivo. Evaluation of drug toxicity in zebrafish showed that overdose of sptA may cause heart damage. CONCLUSIONS AND IMPLICATIONS These findings suggest that pharmacological targeting the degradation of mitoSTAT3 by sptA may provide therapeutic benefits against NSCLC.
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Affiliation(s)
- Fang Wan
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Chen Qian
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Xuewen Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Yifan Zhong
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Wenkang Peng
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Liang Zhang
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Xiangrong Zhan
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Yongtong Huang
- Guangdong Provincial Key Laboratory for Research and Evaluation of Pharmaceutical Preparations, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chengyu Zhang
- Guangdong Provincial Key Laboratory for Research and Evaluation of Pharmaceutical Preparations, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiu Wang
- Guangdong Provincial Key Laboratory for Research and Evaluation of Pharmaceutical Preparations, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuan Si
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Ying Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
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10
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Zhao Z, Liu P, Zhang H, Wang M, Liu Y, Wang L, He H, Ge Y, Zhou T, Xiao C, You Z, Zhang J. Gastrodin prevents stress-induced synaptic plasticity impairment and behavioral dysfunction via cAMP/PKA/CREB signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2025; 141:156661. [PMID: 40138775 DOI: 10.1016/j.phymed.2025.156661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2024] [Revised: 02/27/2025] [Accepted: 03/17/2025] [Indexed: 03/29/2025]
Abstract
BACKGROUND Chronic stress is widely recognized as a critical factor that impairs synaptic plasticity dependent brain function and behavior, contributing to the onset of depression and anxiety disorders, which subsequently undermine learning and memory processes. Gastrodin (GAS), a prominent bioactive constituent of Gastrodiae Rhizoma exhibiting notable neuroprotective properties, holds significant potential for the prevention and treatment of stress-induced neurological dysfunction. However, the protective effects of GAS on stress-induced synaptic plasticity impairment and the underlying mechanisms have yet to be fully elucidated. OBJECTIVES To investigate the potential of GAS in protecting synaptic plasticity from chronic stress and its underlying cellular and molecular mechanisms. METHOD A chronic stress model was constructed in C57BL/6J mice, and the effects of GAS on synaptic plasticity were examined using Golgi staining and immunohistochemistry. Systematic behavioral analysis was employed to assess the impact of GAS on depressive- and anxiety-like behaviors and cognitive function of mice. Metabolomics, transcriptomics, Western blotting, immunolocalization, enzyme-linked immunosorbent assay, and the administration of signal blockers were utilized to investigate the cellular and molecular pathways via which GAS safeguards synaptic plasticity. RESULTS The results showed that chronic stress exposure reduces the dendritic arbor complexity, density of dendritic spines, proportion of mushroom spines of hippocampal neurons, as well as disrupts synaptic function, impairs cognitive function and induces depressive-like behaviors. Importantly, impairment of hippocampal synaptic plasticity, anxiety- and depressive-like behaviors, and cognitive decline induced by chronic stress were significantly ameliorated following GAS treatment. Moreover, we identified the cAMP/PKA/CREB signaling in hippocampal neurons as a potential mechanism through which GAS prevents synaptic plasticity impairment from chronic stress exposure. Blockade of cAMP/PKA/CREB signaling abolished the protective effects of GAS on synaptic plasticity of hippocampal neurons and behaviors in stress-exposed mice. CONCLUSION This study is the first to identify GAS as a potential natural compound for alleviating stress-induced synaptic plasticity impairment and behavioral dysfunction by activating the cAMP/PKA/CREB signaling pathway in hippocampal neurons, offering a promising strategy for stress-induced neurological disorders.
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Affiliation(s)
- Zhihuang Zhao
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Pei Liu
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Haili Zhang
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Meidan Wang
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany.
| | - Yue Liu
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Lulu Wang
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Hui He
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Yangyan Ge
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Tao Zhou
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Chenghong Xiao
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Zili You
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Jinqiang Zhang
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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11
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Guan Y, Liu X, Yang Z, Zhu X, Liu M, Du M, Pan X, Wang Y. PCSK9 Promotes LDLR Degradation by Preventing SNX17-Mediated LDLR Recycling. Circulation 2025; 151:1512-1526. [PMID: 40071387 DOI: 10.1161/circulationaha.124.072336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2024] [Accepted: 02/18/2025] [Indexed: 05/29/2025]
Abstract
BACKGROUND Low-density lipoprotein (LDL) is internalized into cells mainly through LDLR (LDL receptor)-mediated endocytosis. In an acidic endosome, LDLR is released from LDL and recycles back to the cell surface, whereas LDL is left in the endosome and degraded in the lysosome. Circulating PCSK9 (proprotein convertase subtilisin/kexin 9) binds with LDLR and is internalized into the endosome, similar to LDL. In an acidic endosome, LDLR fails to disassociate from PCSK9, and both proteins are degraded in the lysosome. PCSK9 inhibitors are widely used for treating hypercholesterolemia. However, how PCSK9 diverts LDLR to the lysosome for degradation remains elusive. Some patients are resistant to PCSK9 inhibitors, for unknown reasons. METHODS Both in vitro and in vivo approaches were used to investigate the molecular and cellular mechanisms of PCSK9-mediated LDLR degradation. LDLR containing FH sequence variations was expressed in Ldlr knockout mice and knockout HuH7 cells to evaluate their response to PCSK9 and PCSK9 inhibitors. RESULTS Acidic pH induces a conformational change in LDLR extracellular domain and promotes its interaction with SNX17 (sorting nexin 17) through the intracellular domain. Knocking down SNX17 abolishes LDLR recycling and causes accelerated degradation in the lysosome. PCSK9 prevents the acidic pH-induced conformational change in LDLR and blocks its interaction with SNX17. Knocking down SNX17 abolishes PCSK9-mediated LDLR degradation. Any FH sequence variations that disrupt LDLR recycling are unresponsive to PCSK9 or PCSK9 inhibitors, even though they can internalize LDL. CONCLUSIONS PCSK9 promotes LDLR degradation by preventing SNX17-mediated LDLR recycling. Patients with sequence variations in FH leading to defects in LDLR recycling are resistant to PCSK9 inhibitors. Genetic diagnosis and alternative drugs independent of LDLR will be needed for treatment of these patients.
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Affiliation(s)
- YangYang Guan
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
| | - Xiaomin Liu
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
| | - Zetian Yang
- Cardiovascular Surgery Department, Zhongnan Hospital (Z.Y.), Wuhan University, China
| | - Xinyu Zhu
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
- Research Institute of Zhejiang University-Taizhou, China (X.Z.)
| | - Min Liu
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
| | - Mingkun Du
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
| | - Xiaowei Pan
- College of Life Science, Capital Normal University, Beijing, China (X.P.)
| | - Yan Wang
- State Key Laboratory of Metabolism and Regulation in Complex Organisms, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences (Y.G., X.L., X.Z., M.L., M.D., Y.W.), Wuhan University, China
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12
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Guo S, Li X, Liu M, Feng M, Wang X, Xue H, Zhang L. Semaglutide Alleviates Ovarian Oxidative Stress and Autophagy via the PI3K/AKT/mTOR Pathway in Mice with Polycystic Ovary Syndrome. Drug Des Devel Ther 2025; 19:4297-4310. [PMID: 40433568 PMCID: PMC12109608 DOI: 10.2147/dddt.s522730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2025] [Accepted: 05/05/2025] [Indexed: 05/29/2025] Open
Abstract
Background Polycystic ovary syndrome (PCOS) is a typical reproductive endocrine system disease with high incidence rate among childbearing age women. Several clinical data show that glucagon-like peptide-1 receptor agonists (GLP-1RAs) might have therapeutic effects on PCOS, but the mechanisms are still unclear. Here, we aim to assess the effects of semaglutide (a weekly preparation of GLP-1RAs) on PCOS in vivo. Methods C57BL/6J female mice aged 3 weeks were subcutaneously injected with dehydroepiandrosterone and fed high-fat diet for 3 weeks to establish PCOS model. Then, we randomly divided the modeled mice into PCOS group (n=6), S-Low group (n=6), and S-High group (n=6). Additionally, six normal mice served as controls. Mice in S-Low and S-High group were intraperitoneally injected with corresponding dose of semaglutide every week for 4 weeks. The estrus cycle was observed daily. At the end of the experiment, body weight, blood glucose, and serum hormone levels were measured. Ovarian morphology was also observed. Then, the oxidative stress markers, autophagy-related proteins and CYP19A1, StAR, and CYP17A1 expression in ovarian tissue were measured. Finally, we used Western blot to detect the expression of PI3K/AKT/mTOR and downstream proteins. Results After treatment with semaglutide, the estrous rhythm of PCOS mice was restored, the number of ovarian vesicles decreased, serum hormone imbalance corrected, and glucose tolerance improved. The relative expression of CYP17A1, StAR, Beclin-1, and LC3B, as well as MDA, were significantly reduced, while CYP19A1, p62, GSH, and SOD were significantly increased. Finally, semaglutide alleviates ovarian oxidative stress and autophagy via the PI3K/AKT/mTOR pathway. Conclusion Semaglutide alleviates autophagy and ovarian oxidative stress via the PI3K/AKT/mTOR pathway in mice with PCOS.
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Affiliation(s)
- Sili Guo
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Xiaohan Li
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Mei Liu
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Meiqi Feng
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Xi Wang
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Haibo Xue
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
| | - Lei Zhang
- Department of Endocrinology and Metabolism, The First School of Clinical Medicine, Binzhou Medical University Hospital, Binzhou Medicial University, Binzhou, Shandong, People’s Republic of China
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13
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Zhang T, Li Y, Zhai E, Zhao R, Qian Y, Huang Z, Liu Y, Zhao Z, Xu X, Liu J, Li Z, Liang Z, Wei R, Ye L, Ma J, Wu Q, Chen J, Cai S. Intratumoral Fusobacterium nucleatum Recruits Tumor-Associated Neutrophils to Promote Gastric Cancer Progression and Immune Evasion. Cancer Res 2025; 85:1819-1841. [PMID: 39992708 PMCID: PMC12079103 DOI: 10.1158/0008-5472.can-24-2580] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 12/07/2024] [Accepted: 02/19/2025] [Indexed: 02/26/2025]
Abstract
Intratumoral microbiota can affect the development and progression of many types of cancer, including gastric cancer. A better understanding of the precise mechanisms by which microbiota support gastric cancer could lead to improved therapeutic approaches. In this study, we investigated the effect of intratumoral microbiota on the tumor immune microenvironment during gastric cancer malignant progression. Analysis of human gastric cancer tissues with 16S rRNA amplicon sequencing revealed that Fusobacterium nucleatum was significantly enriched in gastric cancer tissues with lymph node metastasis and correlated with a poor prognosis. F. nucleatum infection spontaneously induced chronic gastritis and promoted gastric mucosa dysplasia in mice. Furthermore, gastric cancer cells infected with F. nucleatum showed accelerated growth in immunocompetent mice compared with immunodeficient mice. Single-cell RNA sequencing uncovered that F. nucleatum recruited tumor-associated neutrophils (TAN) to reshape the tumor immune microenvironment. Mechanistically, F. nucleatum invaded gastric cancer cells and activated IL17/NF-κB/RelB signaling, inducing TAN recruitment. F. nucleatum also stimulated TAN differentiation into the protumoral subtype and subsequent promotion of PD-L1 expression, further facilitating gastric cancer immune evasion while also enhancing the efficacy of anti-PD-L1 antibody therapy. Together, these data uncover mechanisms by which F. nucleatum affects gastric cancer immune evasion and immunotherapy efficacy, providing insights for developing effective treatment strategies. Significance: Intratumoral F. nucleatum activates NF-κB signaling to facilitate gastric cancer immune evasion by promoting tumor-associated neutrophil recruitment that sensitizes tumors to immune checkpoint blockade therapy.
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Affiliation(s)
- Tianhao Zhang
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, National Health Commission Science and Technology Innovation Platform for Nutrition and Safety of Microbial Food, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Ertao Zhai
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Risheng Zhao
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan Qian
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhixin Huang
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yinan Liu
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zeyu Zhao
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiang Xu
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jianqiu Liu
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zikang Li
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhi Liang
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ran Wei
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Linying Ye
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Laboratory of General Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jinping Ma
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, National Health Commission Science and Technology Innovation Platform for Nutrition and Safety of Microbial Food, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jianhui Chen
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of General Surgery, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, Guangxi, China
| | - Shirong Cai
- Division of Gastrointestinal Surgery Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Gastric Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
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14
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Zhu Y, Ali A, Mulinari Dos Santos G, Franciscon JPS, de Molon RS, Goh C, Erovolino E, Theodoro LH, Shrestha A. A Chitosan-based Hydrogel to Modulate Immune Cells and Promote Periodontitis Healing in the High-Fat Diet-induced Periodontitis Rat Model. Acta Biomater 2025:S1742-7061(25)00358-7. [PMID: 40379118 DOI: 10.1016/j.actbio.2025.05.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2025] [Revised: 05/06/2025] [Accepted: 05/12/2025] [Indexed: 05/19/2025]
Abstract
Periodontitis is a multifactorial inflammatory disease driven by prolonged, dysregulated inflammation between dysbiotic microbiota and the host immune system. Risk factors such as metabolic syndrome exacerbate periodontitis progression through systemic inflammation. Current treatments primarily focus on removing pathogenic dental plaque, but subsequent healing relies mainly on the host immune response. Modulating the local immune environment, particularly dendritic cells (DCs) and T-cells, in periodontitis complicated by metabolic syndrome could enhance the healing process. The objective of this study is to develop a biomaterial-based adjuvant therapy to immunomodulate DCs and T-cells and promote healing in periodontitis complicated by metabolic syndrome. We developed and characterized a chitosan-based thermosensitive injectable self-assembled hydrogel (TISH), which exhibited an interconnected porous structure conducive to cell migration and adhesion. TISH was loaded with granulocyte-macrophage colony-stimulating factor (GM-CSF) and resveratrol (TISH(GR)), enabling sustained release over time. Mechanistically, TISH(GR) suppressed inflammatory signalling pathways (MAPKs and NF-κB) downstream of Toll-like receptor-4 in DCs. In a high-fat diet-induced periodontitis rat model, TISH(GR) administered as an adjuvant to SRP significantly alleviated periodontal inflammation and tissue destruction compared to SRP alone. TISH(GR) treatment was associated with decreased TH17 cell infiltration and elevated expression of the Tregs-associated cytokine IL-10 in the periodontium. In conclusion, TISH(GR) was developed and optimized as an injectable immunomodulatory hydrogel targeting DCs and T-cells. It demonstrated promising potential to attenuate inflammation and enhance periodontal healing, particularly in immunocompromised patients with metabolic syndrome. STATEMENT OF SIGNIFICANCE: Current treatments for periodontitis primarily focus on dental plaque removal, with healing heavily dependent on the host immune system. However, metabolic diseases can dysregulate the local immune response, exacerbating periodontal inflammation and impairing post-treatment healing. In this study, we developed a chitosan-based hydrogel designed to immunomodulate dendritic cells and T-cells, polarizing them toward an anti-inflammatory phenotype that promotes tissue repair. When administered as an adjuvant to scaling and root planing, this combination therapy significantly enhanced periodontal healing and reduced tissue damage in a high-fat diet complicated periodontitis model. These findings highlight the clinical potential of this hydrogel formulation to improve treatment outcomes, particularly in challenging clinical cases involving metabolic comorbidities.
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Affiliation(s)
- Yi Zhu
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada
| | - Aiman Ali
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada
| | - Gabriel Mulinari Dos Santos
- Department of Diagnostic and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - João Paulo Soares Franciscon
- Department of Diagnostic and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Rafael Scaf de Molon
- Department of Diagnostic and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Cynthia Goh
- Department of Chemistry, University of Toronto, 80 George Street, Toronto, ON, M5S 3H6, Canada; Department of Materials Science and Engineering, University of Toronto, 84 College Street, Suite 140. Toronto, Ontario M5S 3E4 Canada
| | - Edilson Erovolino
- Department of Basic Science, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Leticia Helena Theodoro
- Department of Diagnostic and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - Annie Shrestha
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada.
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15
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Amanollahi R, Holman SL, Meakin AS, Padhee M, Botting-Lawford KJ, Zhang S, MacLaughlin SM, Kleemann DO, Walker SK, Kelly JM, Rudiger SR, McMillen IC, Wiese MD, Lock MC, Morrison JL. In Vitro Embryo Culture Impacts Heart Mitochondria in Male Adolescent Sheep. J Dev Biol 2025; 13:17. [PMID: 40407686 PMCID: PMC12101424 DOI: 10.3390/jdb13020017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2025] [Revised: 04/17/2025] [Accepted: 05/09/2025] [Indexed: 05/26/2025] Open
Abstract
Assisted reproductive technology (ART)such as in vitro embryo culture (IVC), is widely used in human infertility treatments; however, its long-term effects on the cardiac health of offspring remain unclear. This study aimed to determine whether the effects of IVC on cardiac metabolism and associated signaling pathways persist after birth into adolescence. Embryos were either transferred to an intermediate ewe (ET) or cultured in vitro in the absence (IVC) or presence of human serum (IVCHS) with methionine supplementation (IVCHS+M) for 6 days after mating. Naturally mated (NM) ewes were used as controls. Protein expression and hormone concentrations in the left ventricle (LV) were analyzed using Western blot and LC-MS/MS analyses, respectively. IVC was associated with sex-specific alterations in cardiac mitochondria, with males exhibiting reduced mitochondrial abundance. Cardiac protein expression of oxidative phosphorylation (OXPHOS) complexes 1 and 4 was reduced by IVC. Additionally, IVC reduced protein expression of PDK-4 and Mn-SOD in the IVCHS+M group, which may impact energy efficiency and defense against oxidative stress. These changes may predispose IVC offspring to cardiac oxidative stress and mitochondrial dysfunction, particularly in males. This study provides insights into the sex-dependent effects of IVC on cardiac health, emphasizing the importance of evaluating long-term cardiovascular risks associated with IVC protocols.
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Affiliation(s)
- Reza Amanollahi
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Stacey L. Holman
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Ashley S. Meakin
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Monalisa Padhee
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Kimberley J. Botting-Lawford
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Song Zhang
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Severence M. MacLaughlin
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - David O. Kleemann
- South Australian Research and Development Institute, Turretfield Research Centre, Rosedale, SA 5350, Australia; (D.O.K.); (S.K.W.); (J.M.K.); (S.R.R.)
| | - Simon K. Walker
- South Australian Research and Development Institute, Turretfield Research Centre, Rosedale, SA 5350, Australia; (D.O.K.); (S.K.W.); (J.M.K.); (S.R.R.)
| | - Jennifer M. Kelly
- South Australian Research and Development Institute, Turretfield Research Centre, Rosedale, SA 5350, Australia; (D.O.K.); (S.K.W.); (J.M.K.); (S.R.R.)
| | - Skye R. Rudiger
- South Australian Research and Development Institute, Turretfield Research Centre, Rosedale, SA 5350, Australia; (D.O.K.); (S.K.W.); (J.M.K.); (S.R.R.)
| | - I. Caroline McMillen
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Michael D. Wiese
- Centre for Pharmaceutical Innovation, Clinical & Health Sciences University of South Australia, Adelaide, SA 5001, Australia;
| | - Mitchell C. Lock
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
| | - Janna L. Morrison
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; (R.A.); (S.L.H.); (A.S.M.); (M.P.); (K.J.B.-L.); (S.Z.); (S.M.M.); (I.C.M.)
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16
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Patton DA, Grunig CS, McQuaid JR, Dodd AB, Pacheco MK, Ling JM, Wick TV, Sasi Kumar D, Zotev V, Kinsler RE, Arbogast KB, Mayer AR. Relationship Between Rotational Device Kinematics and Head Kinematics in a Large Animal Model of Traumatic Brain Injury. Ann Biomed Eng 2025:10.1007/s10439-025-03736-9. [PMID: 40314897 DOI: 10.1007/s10439-025-03736-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2025] [Accepted: 04/13/2025] [Indexed: 05/03/2025]
Abstract
PURPOSE Large mammal head injury models allow the pathophysiological response associated with traumatic brain injury (TBI) to be studied in vivo with precise control of the physical parameters. However, only some studies have used skull-mounted sensors to measure the kinematics of the animal head rather than relying on measurements of the system delivering the impact. Therefore, the aim of the current study was to compare the kinematics between a rotational injury device (HYGE, Inc., Kittanning, PA) and the head in a swine model of TBI across a range of target peak angular velocities. METHODS Sexually mature Yucatan swine were subjected to a rotational TBI via the HYGE device at one of three targeted peak angular velocities: 110 rad/s (n = 16), 145 rad/s (n = 12) or 170 rad/s (n = 11). Sensor packages were used to measure both the angular kinematics of the animal head and HYGE device swing arm. RESULTS Peak angular velocity of the animal head was on average 18-33% lower compared to that of the HYGE device swing arm with greater relative differences for greater target peak angular velocities. Similarly, peak angular acceleration of the animal head was lower than that of the HYGE device sing arm by 11-34% on average with greater relative differences for greater target peak angular velocities. CONCLUSIONS This study highlights the importance of directly measuring the head kinematics of the animal in TBI models for the purpose of directional comparisons, finite element simulations, and/or scaling kinematics from human-to-animal to determine boundary conditions or animal-to-human to develop injury criteria.
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Affiliation(s)
- Declan A Patton
- Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Ciara S Grunig
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Jessica R McQuaid
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Andrew B Dodd
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Mandy K Pacheco
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Josef M Ling
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Tracey V Wick
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Divyasree Sasi Kumar
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Vadim Zotev
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
| | - Rachel E Kinsler
- Enroute Care Group, U.S. Army Aeromedical Research Laboratory, Fort Novosel, AL, USA
| | - Kristy B Arbogast
- Center for Injury Research and Prevention, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew R Mayer
- The Mind Research Network/Lovelace Biomedical Research Institute, Pete & Nancy Domenici Hall, Albuquerque, NM, USA
- Neurology Department, University of New Mexico School of Medicine, Albuquerque, NM, USA
- Psychiatry Department, University of New Mexico School of Medicine, Albuquerque, NM, USA
- Psychology Department, University of New Mexico School of Medicine, Albuquerque, NM, USA
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17
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Zhang F, Wang J, Wang W, Chen G, Tang H, Zhai X. The therapeutic potential of irisin in alleviating acute lung injury via inflammation and ferroptosis modulation. J Int Med Res 2025; 53:3000605251340338. [PMID: 40406908 PMCID: PMC12102538 DOI: 10.1177/03000605251340338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2024] [Accepted: 04/17/2025] [Indexed: 05/26/2025] Open
Abstract
ObjectiveAcute lung injury is a fatal complication triggered by sepsis, characterized by widespread inflammation and weakening of the alveolar epithelium. Irisin has been reported to exert anti-inflammatory effects, which are produced by the cleavage of fibronectin type III domain-containing protein 5 in skeletal muscle. Here, we investigated the potential of irisin in preventing acute lung injury by protecting the alveolar epithelium.MethodsThe sepsis-related acute lung injury model was established by a cecal ligation and puncture model in C57/BL6N mice. Lung histology was assessed using hematoxylin and eosin and Masson staining. Ferroptosis-related proteins and genes were quantified via western blot and quantitative polymerase chain reaction, respectively, whereas cytokine levels were measured using enzyme-linked immunosorbent assay.ResultsHistological analysis revealed lung injury in the cecal ligation and puncture group, alongside elevated levels of cytokines such as IL-1β, IL-18, and TNF-α compared with controls. Treatment with irisin mitigated sepsis-induced lung damage and reduced oxidative stress, as indicated by reactive oxygen species and Fe2+ levels. Furthermore, irisin pretreatment inhibited the upregulation of ferroptosis-related genes (Acsl4, Ptgs2, and Hspa5) as well as ACSL4, COX-2, and p-AMPK expression.ConclusionThese findings suggest that irisin treatment is associated with reduced ferroptosis and inflammation in sepsis-induced acute lung injury. Irisin emerges as a promising candidate for acute lung injury therapy induced by sepsis.
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Affiliation(s)
- Feng Zhang
- Department of Pediatrics, Huaiyin Maternal and Child Health Hospital, China
| | - Jiangpeng Wang
- Department of Cardiovascular Medicine, Huai’an Fifth People’s Hospital, China
| | - Wei Wang
- Department of Cardiovascular Medicine, Huai’an Fifth People’s Hospital, China
| | - Gang Chen
- Department of Respiratory Medicine, Huai’an Fifth People’s Hospital, China
| | - Huan Tang
- Department of Cardiovascular Medicine, Huai’an Fifth People’s Hospital, China
| | - Xuezhen Zhai
- Department of Infectious Diseases, Huai’an Fifth People’s Hospital, Huai’an, China
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18
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Rapún J, Pérez-Martín S, Cámara-Checa A, San José G, Núñez-Fernández R, Crespo-García T, Hoban A, Rubio-Alarcón M, Martínez-Blanco E, Tamargo J, Díez-Guerra FJ, López B, Gómez R, González A, Delpón E, Caballero R. Two concurrent mechanisms are responsible for the I Na increase produced by dapagliflozin and empagliflozin in healthy and heart failure cardiomyocytes. Biomed Pharmacother 2025; 186:117984. [PMID: 40101587 DOI: 10.1016/j.biopha.2025.117984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2024] [Revised: 02/28/2025] [Accepted: 03/10/2025] [Indexed: 03/20/2025] Open
Abstract
Dapagliflozin and empagliflozin exert many cardiovascular protective actions in heart failure (HF) patients. HF-induced electrical remodelling decreases the expression of Nav1.5 channels (encoded by SCN5A) that generate the cardiac Na+ current (INa) impairing excitability and promoting arrhythmias. We aimed to mechanistically decipher the peak INa increase produced by dapagliflozin and empagliflozin in healthy and HF cardiomyocytes. We recorded macroscopic and single-channel currents and action potentials (AP) using the patch-clamp technique and generated a mouse model of HF with reduced ejection fraction by transverse aortic constriction (TAC). Single-channel recordings showed that dapagliflozin and empagliflozin (1 μM) increased the open probability (Po) of Nav1.5 channels by augmenting channel re-openings and the number of traces with openings and by doubling the open time constant, respectively. Both drugs increased SCN5A mRNA levels and the membrane expression of Nav1.5 channels. Empagliflozin also enhanced the cytoplasmic mobility of Nav1.5 channels. Molecular modelling and site-directed mutagenesis analysis demonstrated that both drugs bind to a previously unknown site at the Nav1.5 DIII-DIV fenestration. Dapagliflozin and empagliflozin hyperpolarized the resting membrane potential and increased the action potential amplitude in human cardiomyocytes derived from induced pluripotent stem cells. Importantly, in TAC cardiomyocytes dapagliflozin and empagliflozin restored the HF-reduced peak INa to control levels. Dapagliflozin and empagliflozin bind to a novel site within cardiac Nav1.5 increasing INa by augmenting the Po and the membrane expression of the channels. We hypothesized that this unique effects could be of interest for the treatment of arrhythmias associated with decreased Nav1.5 channel expression.
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Affiliation(s)
- Josu Rapún
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Sara Pérez-Martín
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Anabel Cámara-Checa
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Gorka San José
- CIBERCV, Instituto de Salud Carlos III, Spain; Program of Cardiovascular Disease, CIMA Universidad de Navarra and IdiSNA, Pamplona 31008, Spain
| | - Roberto Núñez-Fernández
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Teresa Crespo-García
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Adam Hoban
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Marcos Rubio-Alarcón
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - Elena Martínez-Blanco
- Department of Molecular Biology and Center of Molecular Biology "Severo Ochoa" (UAM-CSIC), Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Juan Tamargo
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
| | - F Javier Díez-Guerra
- Department of Molecular Biology and Center of Molecular Biology "Severo Ochoa" (UAM-CSIC), Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Begoña López
- CIBERCV, Instituto de Salud Carlos III, Spain; Program of Cardiovascular Disease, CIMA Universidad de Navarra and IdiSNA, Pamplona 31008, Spain
| | - Ricardo Gómez
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain
| | - Arantxa González
- CIBERCV, Instituto de Salud Carlos III, Spain; Program of Cardiovascular Disease, CIMA Universidad de Navarra and IdiSNA, Pamplona 31008, Spain; Department of Pathology, Anatomy and Physiology, Universidad de Navarra, Pamplona 31009, Spain
| | - Eva Delpón
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain.
| | - Ricardo Caballero
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, Madrid 28040, Spain; CIBERCV, Instituto de Salud Carlos III, Spain
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Zuo G, Li M, Guo X, Wang L, Yao Y, Huang JA, Liu Z, Lin Y. Fu brick tea supplementation ameliorates non-alcoholic fatty liver disease and associated endotoxemia via maintaining intestinal homeostasis and remodeling hepatic immune microenvironment. Food Res Int 2025; 209:116207. [PMID: 40253128 DOI: 10.1016/j.foodres.2025.116207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2024] [Revised: 01/27/2025] [Accepted: 03/11/2025] [Indexed: 04/21/2025]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a prevalent disorder of excessive fat accumulation and inflammation in the liver that currently lacks effective therapeutic interventions. Fu brick tea (FBT) has been shown to ameliorate liver damage and modulate gut microbiota dysbiosis in NAFLD, but the potential mechanisms have not been comprehensively elucidated, especailly whether its hepatoprotective effects are determined to depend on the homeostasis of gut microbiota, intestinal barrier function and hepatic immune microenvironment. In this study, our results further demonstrated that FBT not only alleviated NAFLD symptoms and related endotoxemia in high-fat diet (HFD)-fed rats, but also attenuated intestinal barrier dysfunction and associated inflammation, also confirmed in Caco-2 cell experiment. Meanwhile, FBT intervention significantly relieved HFD-induced gut microbiota dysbiosis, characterized by increased diversity and composition, particularly facilitating beneficial microbes, including short chain fatty acids (SCFAs) and bile acids producers, such as Blautia and Fusicatenibacter, and inhibiting Gram-negative bacteria, such as Prevotella_9 and Phascolarctobacterium. Also, the gut microbiota-dependent hepatoprotective effects of FBT were verified by fecal microbiota transplantation (FMT) experiment. Thus, the beneficial moulation of gut microbiota altered by FBT in levels of SCFAs, bile acids and lipopolysaccharides, intestinal barrier function and TLR4/NF-κB pathway contributed to alleviate liver steatosis and inflammation. Additionally, the hepatoprotective effects of FBT was further demonstrated by suppressing Kupffer cell activation and regulating lipid metabolism using an ex vivo model of liver organoid. Therefore, FBT supplementation can maintain intenstinal homeostasis and remodel hepatic immune microenvironment to prevent NAFLD and associated endotoxemia.
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Affiliation(s)
- Gaolong Zuo
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China
| | - Menghua Li
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China
| | - Xiaoli Guo
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China
| | - Ling Wang
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China
| | - Yanyan Yao
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China
| | - Jian-An Huang
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha 410128, PR China.
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha 410128, PR China.
| | - Yong Lin
- Key Laboratory of Tea Science of Ministry of Education and Co-Innovation Centre of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, PR China; Key Laboratory for Evaluation and Utilization of Gene Resources of Horticultural Crops, Ministry of Agriculture and Rural Affairs of China, Hunan Agricultural University, Changsha 410128, PR China.
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20
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Liu X, Long F, Zou W, Qi T. Lactate alleviates trigeminal neuralgia symptoms in mice by suppressing neuroinflammation. J Int Med Res 2025; 53:3000605251341802. [PMID: 40415385 PMCID: PMC12117245 DOI: 10.1177/03000605251341802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2025] [Accepted: 04/25/2025] [Indexed: 05/27/2025] Open
Abstract
ObjectivesTrigeminal neuralgia is a neuropathic pain syndrome that undesirably affects patient's quality of life. Lactate exerts extensive pathophysiological effects on the brain; however, it remains unclear whether lactate improves trigeminal neuralgia symptoms as well as the underlying mechanisms.MethodsIn our study, unilateral constriction of the infraorbital nerve was performed to establish a mouse model of trigeminal neuralgia. Conditional knockout of the astrocyte-specific lactate dehydrogenase gene was performed to decrease brain exposure to lactate. The behavioral changes were observed and the pain thresholds were detected via von Frey tests at 1, 5, 10, 15, and 30 days after surgery to evaluate the impact of lactate on trigeminal neuralgia. Intracerebroventricular injection of L-lactate was administered to evaluate the biological function of lactate in our model.ResultsWe revealed that lactate levels in the spinal trigeminal nucleus were elevated by approximately 2.5-fold (3.63 vs. 1.43 µmol/g) after surgery, which remained elevated for at least 30 days. This shift in lactate levels appeared to be independent of peripheral circulation, as plasma lactate levels remained unaltered until 30 days after surgery. Increased lactate exposure alleviated trigeminal neuralgia symptoms after the surgery. Mechanistically, lactate suppressed reactive oxygen species production and neuroinflammation.ConclusionsLactate may alleviate trigeminal neuralgia symptoms in mice by suppressing neuroinflammation.
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Affiliation(s)
- Xiangbo Liu
- Department of Pain Management, Hospital of Chengdu University of Traditional Chinese Medicine, China
| | - Feiyu Long
- Department of Anesthesiology, West China Hospital, Sichuan University, China
| | - Wujun Zou
- Department of Otorhinolaryngology Head and Neck Surgery, Chengdu Second People's Hospital, China
| | - Tao Qi
- Department of Pain Management, Hospital of Chengdu University of Traditional Chinese Medicine, China
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21
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Zhang FR, Tang J, Lai Y, Mo SQ, Lin ZM, Lei QQ, Han CC, Zhou AD, Lv XF, Wang C, Ou JS, Zhou JG, Pang RP. Smooth muscle cell Piezo1 is essential for phenotypic switch and neointimal hyperplasia. Br J Pharmacol 2025; 182:2031-2048. [PMID: 39900041 DOI: 10.1111/bph.17436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 10/17/2024] [Accepted: 11/10/2024] [Indexed: 02/05/2025] Open
Abstract
BACKGROUND AND PURPOSE Disturbed blood flow is a critical factor in activation of vascular smooth muscle cells (VSMCs) and initiation of neointimal hyperplasia. The Piezo1 channel is a recent yet well-characterised mechanosensor that plays a vital role in vascular development and homeostasis. However, the role of VSMC Piezo1 in neointima development remains largely unknown. The purpose of this study is to investigate the functional role of Piezo1 channel in neointimal hyperplasia. EXPERIMENTAL APPROACH We measured the expression of Piezo1 in VSMC-rich neointima from human coronary artery samples and two mouse neointimal hyperplasia models which were induced by cast implantation or guidewire injury. We utilised VSMC-specific Piezo1 knockout mice to explore its function and the underlying mechanism of neointimal hyperplasia, both in vivo and in vitro. KEY RESULTS In human and mouse neointima samples, we observed a significant up-regulation of Piezo1 expression in the VSMC-rich neointima compared to the medial layer. VSMC-specific knockout of Piezo1 significantly reduced neointimal hyperplasia in both animal models. Activation of Piezo1 facilitates, whereas Piezo1 deficiency inhibits disturbed flow-induced cell proliferation, migration and synthetic phenotype switch. Mechanistic studies suggest that Piezo1 activates YAP and TAZ through Ca2+ and its downstream effectors calmodulin kinase II and calcineurin, which in turn drive VSMC proliferation and migration, thereby facilitating neointimal hyperplasia. CONCLUSIONS AND IMPLICATIONS These findings demonstrate a critical role of mechanosensitive Piezo1 channel in neointimal hyperplasia via modulating VSMC phenotype. Piezo1 channels may represent a novel therapeutic target for maladaptive vascular remodelling and occlusive vascular diseases.
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Affiliation(s)
- Fei-Ran Zhang
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jie Tang
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ying Lai
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Shi-Qi Mo
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhuo-Miao Lin
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Qing-Qing Lei
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Cong-Cong Han
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - An-Dong Zhou
- Department of Clinical Medicine, the Second Clinical Medical School, Guangdong Medical University, Dongguan, China
| | - Xiao-Fei Lv
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Cheng Wang
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jing-Song Ou
- Division of Cardiac Surgery, Heart Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jia-Guo Zhou
- Program of Kidney and Cardiovascular Diseases, the Fifth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Pharmacology, Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Program of Vascular Diseases, the Eighth Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Cardiovascular diseases, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Rui-Ping Pang
- Department of Physiology, Pain Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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Yang X, Gui T, Zhang S, Wang T, Chen X, Ren H, Xu C, He D, Yao L. Intermittent Theta Burst Stimulation Over Cerebellum Facilitates Neurological Recovery in Poststroke Depression via the cAMP/PKA/CREB Pathway. Stroke 2025; 56:1266-1279. [PMID: 40099372 DOI: 10.1161/strokeaha.124.048697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 11/25/2024] [Accepted: 01/27/2025] [Indexed: 03/19/2025]
Abstract
BACKGROUND Stroke causes somatic dysfunction and psychological disorders, leading to poststroke depression (PSD). This study investigates mood alterations in PSD models via cerebellar intermittent theta burst stimulation (iTBS). METHODS PSD animal models were developed using middle cerebral artery occlusion and chronic unpredictable mild stress procedures. PSD models underwent cerebellar iTBS with different pulse numbers. Neurological recovery was evaluated using open-field test, sucrose preference test, forced swimming test, and balance beam test. Golgi and hematoxylin-eosin staining assessed neuronal repair, while quantitative real-time polymerase chain reaction, enzyme-linked immunosorbent assay (ELISA), immunofluorescence, and Western blotting evaluated effects on BDNF (brain-derived neurotrophic factor), hypothalamic-pituitary-adrenal axis factors, and the cAMP/PKA (protein kinase A)/CREB (cAMP-response element-binding protein) pathway. The study first determined the effects of different intensities of iTBS stimulation on neurological recovery in PSD rats. Second, the effects of iTBS stimulation on the cAMP/PKA/CREB pathway were verified using adenoviral blockade of PKA and CREB at iTBS-1800. RESULTS PSD models showed decreased vertical movement, locomotor distance, and sucrose preference and increased immobility time and balance beam test score, which were reversed by iTBS. iTBS increased dendritic length and spine density in Purkinje cells, alleviated neuronal damage in multiple brain regions, and enhanced BDNF synthesis. It also regulated adrenocorticotropic hormone, cortisol, and GR (glucocorticoid receptor) expression, and activated the cAMP/PKA/CREB pathway. CONCLUSIONS Cerebellar iTBS improves PSD by activating the cAMP-PKA/CREB pathway, increasing BDNF, and reducing hypothalamic-pituitary-adrenal axis hyperactivity, suggesting potential for human PSD treatment.
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Affiliation(s)
- Xue Yang
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Tengmin Gui
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Shuxian Zhang
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Tianling Wang
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Xueting Chen
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Huanhuan Ren
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Chunyan Xu
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Dingwei He
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Liqing Yao
- Department of Rehabilitation Medicine, the Second Affiliated Hospital of Kunming Medical University, Yunnan, China
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Li L, Wang S, Chen J, Wu C, Chen Z, Ye F, Zhou X, Zhang X, Li J, Zhou J, Lu Y, Su Z. Radiomics Diagnosis of Microvascular Invasion in Hepatocellular Carcinoma Using 3D Ultrasound and Whole-Slide Image Fusion. SMALL METHODS 2025; 9:e2401617. [PMID: 40200669 DOI: 10.1002/smtd.202401617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2024] [Revised: 03/16/2025] [Indexed: 04/10/2025]
Abstract
This study aims to develop a machine learning model that accurately diagnoses microvascular invasion (MVI) in hepatocellular carcinoma by using radiomic features from MVI-positive regions of interest (ROIs). Unlike previous studies, which do not account for the location and distribution of MVI, this research focuses on correlating preoperative imaging with postoperative pathological MVI. This study involves obtaining ex vivo 3D ultrasound images of 36 hepatic specimens from nine rabbits. These images are fused with whole-slide images to localize MVI regions precisely. The identified MVI regions are segmented into MVI-positive ROIs, with a 1:3 ratio of positive to negative ROIs. Radiomic features are extracted from each ROI, and 30 features highly associated with MVI are selected for model development. The performance of several machine learning models is evaluated using metrics such as sensitivity, specificity, accuracy, the area under the curve (AUC), and F1 score. The GBDT model achieves the best results, with an AUC of 0.91, an F1 score of 0.85, a sensitivity of 0.76, a specificity of 0.92, and an accuracy of 0.86. The high diagnostic accuracy of these models highlights the potential for future clinical application in the precise diagnosis of MVI using radiomic features from MVI-positive ROIs.
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Affiliation(s)
- Liujun Li
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
- Department of Ultrasound, The First Affiliated Hospital of University of South China, No. 69 Chuanshan Rd, Hengyang, 421000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Shaodong Wang
- School of Computer Science and Engineering, Guangdong Province Key Laboratory of Computational Science, Sun Yat-Sen University, No 132 Waihuan East Road, Guangzhou, 510006, China
| | - Jiaxin Chen
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Chaoqun Wu
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Ziman Chen
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Feile Ye
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Xuan Zhou
- Department of Pathology, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
| | - Xiaoli Zhang
- Department of Pathology, The First Affiliated Hospital of University of South China, No. 69 Chuanshan Rd, Hengyang, 421000, China
| | - Jianping Li
- Department of Pathology, The First Affiliated Hospital of University of South China, No. 69 Chuanshan Rd, Hengyang, 421000, China
| | - Jia Zhou
- Department of Ultrasound, The First Affiliated Hospital of University of South China, No. 69 Chuanshan Rd, Hengyang, 421000, China
| | - Yao Lu
- School of Computer Science and Engineering, Guangdong Province Key Laboratory of Computational Science, Sun Yat-Sen University, No 132 Waihuan East Road, Guangzhou, 510006, China
| | - Zhongzhen Su
- Department of Ultrasound, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua Rd, Zhuhai, 519000, China
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Yuan Y, Fu L, Liu W, Dong R, Shi F, Liu J, Li H, Zhang G. Selective cerebral hypothermia alleviates focal cerebral ischemia/reperfusion injury via enhancing SUMO2/3 modification of Drp1 in rats. Int J Biochem Cell Biol 2025; 182-183:106772. [PMID: 40122332 DOI: 10.1016/j.biocel.2025.106772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2024] [Revised: 03/15/2025] [Accepted: 03/18/2025] [Indexed: 03/25/2025]
Abstract
BACKGROUND Selective Cerebral Hypothermia (SCH) has been demonstrated to potentiate SUMO2/3 modification, a native cellular safeguard against Cerebral Ischemia/Reperfusion Injury (CIRI). Dynamin-Related Protein 1 (Drp1), a pivotal regulator in the mitochondrial fission pathway, is an important substrate for SUMO2/3 modification. However, effects of SCH on SUMO2/3 modification of Drp1 remain undefined. Herein, the current study posits that SCH augments the SUMO2/3 modification of Drp1, thereby preserving mitochondrial integrity and mitigating CIRI. METHODS A focal CIRI model was established in Sprague-Dawley rats, with 20°C saline perfused via the transcarotid artery to induce SCH condition, and 37°C saline serving as a control. The modified Neurological Severity Score (mNSS) was used to quantitate the degree of neurological deficits. Staining of 2,3-5-triphenyltetrazolium chloride (TTC) was performed to detect cerebral infarction volume. Histological change of neurocyte was observed through Hematoxylin-eosin (HE) staining. Neurocyte apoptosis was evaluated using terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) immunofluorescence staining. Western blot (WB) was utilized to evaluated the expressions of Drp1 and Cytochrome C. Co-immunoprecipitation was performed to evaluate the level of SUMO2/3 modification of Drp1. And transmission electron microscopy was used to observe the mitochondrial ultrastructure. The ratio of M-Drp1 to T-Drp1 and mitochondria morphological changes were observed under confocal microscopy. RESULTS Research data revealed that SCH significantly enhanced the SUMO2/3 modification of Drp1 when CIRI occurred. Concurrently, mNSSs, cerebral infarct volume, and apoptotic rates were notably attenuated in the SCH group, corroborating SCH's protective role. Expression levels of mitochondrial outer membrane Drp1 (M-Drp1), cytoplasmic cytochrome C (C-CytC), and ratio of M-Drp1 to T-Drp1 were reduced, and changes of mitochondrial ultrastructural and morphology were mitigated, underscoring SCH's inhibitory effect on mitochondrial fission. In contrast, 37°C saline displayed negligible protective impact while compare with 20°C saline perfusion. CONCLUSIONS The findings support that SCH amplifies SUMO2/3 modification of Drp1, curtails excessive mitochondrial fission, and consequently ameliorates focal CIRI in a rat model.
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Affiliation(s)
- Yang Yuan
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China
| | - Li Fu
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China
| | - Wenji Liu
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China
| | - Rui Dong
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China
| | - Fei Shi
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China
| | - Jinhao Liu
- The Second School of Clinical Medicine of Binzhou Medical University, Yantai, Shandong 256603, China
| | - Hong Li
- School of Anesthesiology, Shandong Second Medical University, Weifang, Shandong 261053, China.
| | - Gaofeng Zhang
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266071, China.
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Dong RF, Qin CJ, Yin Y, Han LL, Xiao CM, Wang KD, Wei RY, Xia YZ, Kong LY. Discovery of a potent inhibitor of chaperone-mediated autophagy that targets the HSC70-LAMP2A interaction in non-small cell lung cancer cells. Br J Pharmacol 2025; 182:2287-2309. [PMID: 37311689 DOI: 10.1111/bph.16165] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/26/2023] [Accepted: 05/27/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND AND PURPOSE Chaperone-mediated autophagy (CMA) is a selective type of autophagy targeting protein degradation and maintains high activity in many malignancies. Inhibition of the combination of HSC70 and LAMP2A can potently block CMA. At present, knockdown of LAMP2A remains the most specific method for inhibiting CMA and chemical inhibitors against CMA have not yet been discovered. EXPERIMENTAL APPROACH Levels of CMA in non-small cell lung cancer (NSCLC) tissue samples were confirmed by tyramide signal amplification dual immunofluorescence assay. High-content screening was performed based on CMA activity, to identify potential inhibitors of CMA. Inhibitor targets were determined by drug affinity responsive target stability-mass spectrum and confirmed by protein mass spectrometry. CMA was inhibited and activated to elucidate the molecular mechanism of the CMA inhibitor. KEY RESULTS Suppression of interactions between HSC70 and LAMP2A blocked CMA in NSCLC, restraining tumour growth. Polyphyllin D (PPD) was identified as a targeted CMA small-molecule inhibitor through disrupting HSC70-LAMP2A interactions. The binding sites for PPD were E129 and T278 at the nucleotide-binding domain of HSC70 and C-terminal of LAMP2A, respectively. PPD accelerated unfolded protein generation to induce reactive oxygen species (ROS) accumulation by inhibiting HSC70-LAMP2A-eIF2α signalling axis. Also, PPD prevented regulatory compensation of macroautophagy induced by CMA inhibition via blocking the STX17-SNAP29-VAMP8 signalling axis. CONCLUSIONS AND IMPLICATIONS PPD is a targeted CMA inhibitor that blocked both HSC70-LAMP2A interactions and LAMP2A homo-multimerization. CMA suppression without increasing the regulatory compensation from macroautophagy is a good strategy for NSCLC therapy. LINKED ARTICLES This article is part of a themed issue Natural Products and Cancer: From Drug Discovery to Prevention and Therapy. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v182.10/issuetoc.
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Affiliation(s)
- Rui-Fang Dong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Cheng-Jiao Qin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yong Yin
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Liang-Liang Han
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Cheng-Mei Xiao
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kai-Di Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Rong-Yuan Wei
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuan-Zheng Xia
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ling-Yi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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Amanollahi R, Holman SL, Bertossa MR, Meakin AS, Clifton VL, Thornburg KL, McMillen IC, Wiese MD, Lock MC, Morrison JL. Elevated cortisol concentration in preterm sheep fetuses impacts heart development. Exp Physiol 2025. [PMID: 40296367 DOI: 10.1113/ep092506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2024] [Accepted: 03/20/2025] [Indexed: 04/30/2025]
Abstract
The prepartum rise in cortisol promotes cardiac development and maturation. Here, we investigated the impact of elevated circulating cortisol during mid-late gestation on cardiac growth and metabolism in fetal sheep. Saline or cortisol (2-3 mg in 4.4 mL/24 h) was infused into the fetal jugular vein from 109 to 116 days gestation (dG, term = 150 dG), and fetal heart tissue was collected at 116 dG. Glucocorticoid concentrations, gene and protein expression were measured in fetal left ventricle (LV) tissue. Intrafetal cortisol infusion increased cardiac cortisol concentration but downregulated the protein abundance of glucocorticoid receptor (GR) isoforms (GRα-A, GR-P, GR-A, GRα-D2 and GRα-D3). The gene and protein expression of markers of cardiac hyperplastic growth (IGF1, IGF-1R, TGFβ and AGT) were downregulated, while a protein marker of DNA replication (proliferating cell nuclear antigen) was upregulated by cortisol infusion. Cardiac protein and/or gene expression of complex I of the electron transport chain, SOD2, GLUT-4 (gene and protein), and phosphorylated IRS-1, were upregulated in response to elevated fetal cortisol concentration. Intrafetal cortisol infusion downregulated gene expression of PDK4, which mediates the metabolic switch from glucose to fatty acid metabolism. Cardiac expression of molecular markers involved in cardiovascular protection (SIRT-1, HO1, LAMP1 and SK1) were also downregulated in the cortisol group. In conclusion, these findings suggest that chronic cortisol exposure in preterm fetuses alters heart development, promoting cardiac maturation and potentially increasing the risk of cardiovascular disease later in life if these changes persist into adulthood.
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Affiliation(s)
- Reza Amanollahi
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Stacey L Holman
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Melanie R Bertossa
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Ashley S Meakin
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Vicki L Clifton
- Pregnancy and Development Group, Mater Research Institute, University of Queensland, South Brisbane, Queensland, Australia
| | - Kent L Thornburg
- Department of Medicine, Center for Developmental Health, Knight Cardiovascular Institute, Bob and Charlee Moore Institute of Nutrition and Wellness, Oregon Health & Science University, Portland, Oregon, USA
| | - I Caroline McMillen
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Michael D Wiese
- Centre for Pharmaceutical Innovation, Clinical & Health Sciences University of South Australia, Adelaide, South Australia, Australia
| | - Mitchell C Lock
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Janna L Morrison
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation; UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
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Lv H, Wang C, Liu Z, Quan M, Li K, Gou F, Shi X, Liu Q, Yu Y, Zhu P, Cheng H, Cheng T, Ai D. Suppression of the Prostaglandin I2-Type 1 Interferon Axis Induces Extramedullary Hematopoiesis to Promote Cardiac Repair After Myocardial Infarction. Circulation 2025. [PMID: 40289806 DOI: 10.1161/circulationaha.124.069420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/09/2025] [Indexed: 04/30/2025]
Abstract
BACKGROUND Immune cells are closely associated with all processes of cardiac repair after myocardial infarction (MI), including the initiation, development, and resolution of inflammation. Spleen extramedullary hematopoiesis (EMH) serves as a crucial source of emergency mature blood cells that are generated through the self-renewal and differentiation of hematopoietic stem/progenitor cells (HSPCs). However, how EMH responds to MI and the role of EMH in cardiac repair after MI remains unclear. METHODS To assess the role of spleen EMH in MI, a Tcf21CreER Scfflox/flox MI mouse model with inhibited EMH was constructed. GFP+ (green fluorescent protein) hematopoietic stem cells were sorted from eGFP (enhanced green fluorescent protein) mouse spleen by flow cytometry and injected into Tcf21CreER Scfflox/flox mice to test the sources of local inflammatory cells during MI. Using highly specific liquid chromatography-tandem mass spectrometry and single-cell RNA sequencing, we analyzed the lipidomic profile of arachidonic acid metabolites and the transcriptomes of HSPCs in the spleen after MI. RESULTS We found that MI enhanced EMH, as reflected by the increase in spleen weight and volume and the number of HSPCs in the spleen. The lack of EMH in Scf-deficient mice exacerbated tissue injury after MI. Analysis of the transcriptome of spleen HSPCs after MI revealed that the type 1 interferon pathway was substantially inhibited in hematopoietic stem cell/multipotent progenitor subclusters, and the absence of type 1 interferon signaling enhanced the MI-induced spleen EMH. Lipidomics analysis revealed that prostaglandin I2 (PGI2) was markedly reduced in the spleen. PGI2 suppressed MI-induced EMH through a PGI2 receptor (IP)-cyclic adenosine monophosphate-453p-SP1 cascade in spleen HSPCs. Hematopoietic cell-specific IP-deficient mice exhibited enhanced EMH and improved cardiac recovery after MI. CONCLUSIONS Together, our findings revealed that a PGI2-IFN axis was involved in spleen EMH after MI, providing new mechanistic insights into spleen EMH after MI and offering a new therapeutic target for treating ischemic cardiac injury.
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Affiliation(s)
- Huizhen Lv
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
- Department of Cardiology, Peking University First Hospital, Beijing, China (H.L., D.A.)
| | - Chenchen Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
- Center for Stem Cell Medicine, Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
| | - Zening Liu
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
| | - Meixi Quan
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
| | - Kan Li
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
| | - Fanglin Gou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
- Center for Stem Cell Medicine, Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
| | - Xuelian Shi
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
| | - Qian Liu
- School of Biomedical Engineering and Technology (Q.L.), Tianjin Medical University, China
| | - Ying Yu
- Department of Pharmacology, School of Basic Medical Sciences (Y.Y.), Tianjin Medical University, China
| | - Ping Zhu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
- Center for Stem Cell Medicine, Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
| | - Hui Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
- Center for Stem Cell Medicine, Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
- Center for Stem Cell Medicine, Department of Stem Cell & Regenerative Medicine, Chinese Academy of Medical Sciences, Tianjin, China (C.W., F.G., P.Z., H.C., T.C.)
| | - Ding Ai
- State Key Laboratory of Experimental Hematology, Tianjin Institute of Cardiology, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Second Hospital of Tianjin Medical University, and Department of Physiology and Pathophysiology (H.L., Z.L., M.Q., K.L., X.S., D.A.), Tianjin Medical University, China
- Department of Cardiology, Peking University First Hospital, Beijing, China (H.L., D.A.)
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Mohammadi M, Rahimi K, Rezaie A, Tabandeh MR. The role of fecal microbiota transplantation on the NLRP3-Caspase 1 pathway and anxiety like behavioral in the ulcerative colitis model in rats. Sci Rep 2025; 15:14831. [PMID: 40295607 PMCID: PMC12037881 DOI: 10.1038/s41598-025-96948-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Accepted: 04/01/2025] [Indexed: 04/30/2025] Open
Abstract
The purpose of this study was to investigate the function of the NLRP3-Caspase 1 signaling pathway in the colon during fecal microbiota transplantation (FMT) in colitis induced by acetic acid. Additionally, the study aimed to determine the impact of FMT on anxiety behaviors by analyzing the function of the NLRP3-Caspase 1 signaling pathway in the hippocampus. A total of twenty-four rats were selected randomly for the study and divided into two groups, a control group, and an acid acetic-induced colitis group. The acid acetic-induced colitis group further consisted of three subgroups: untreated acid acetic-induced colitis group, mesalazine 0.3 gr/kg group, and FMT group. After 6 days, the colon was evaluated for macroscopic and microscopic damage, and the signaling pathway NLRP3-Caspase1-related genes in the colon and hippocampus were analyzed. Additionally, anxiety-related behaviors of the rats were observed. FMT decreased colonic mRNA expression levels of NLRP3, NF-кB, and Caspase1 and pro-inflammatory cytokines (IL-1β and IL-18). Also, FMT reduced the expression of NLRP3, NF-κB, and Caspase1 protein levels as well as pro-inflammatory cytokines IL-1β and IL-18 in the hippocampus, resulting in a reduction of anxiety behaviors in the open field and elevated plus maze tests in the colitis model. FMT may improve acetic acid-induced colitis by regulating the NLRP3-Caspase1 signaling pathway in the colon. It also reduced colitis-induced anxiety behavior by regulating the expression of proteins related to the NLRP3-Caspase 1 pathway in the hippocampus.
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Affiliation(s)
- Mohammad Mohammadi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Kaveh Rahimi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Anahita Rezaie
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohammad Reza Tabandeh
- Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
- Stem Cells and Transgenic Technology Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Cui CS, Lerskiatiphanich T, Li XX, Giri R, Liu N, Kumar V, Whittaker AK, Han FY, Clark RJ, Begun J, Lee JD, Woodruff TM. Colon-targeted complement C5a 1 receptor inhibition using pH-sensitive nanoparticles ameliorates experimental colitis. Br J Pharmacol 2025. [PMID: 40288760 DOI: 10.1111/bph.70056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2024] [Revised: 03/11/2025] [Accepted: 03/19/2025] [Indexed: 04/29/2025] Open
Abstract
BACKGROUND AND PURPOSE The complement system is associated with inflammatory bowel disease (IBD) pathology. Complement activation induces C5a production, which signals through the C5a1 receptor (C5aR1) to drive inflammatory responses that may underlie IBD. EXPERIMENTAL APPROACH We examined mucosal biopsies from ulcerative colitis patients and identified C5a1 receptor up-regulated in active lesions, supporting the C5a1 receptor as a target for therapeutic intervention. Cyclic peptide C5a1 receptor antagonists such as PMX205 are orally efficacious in preclinical colitis models; however, their clinical application may be limited by rapid metabolism. We therefore encapsulated PMX205 within pH-sensitive polymers to target drug for colon delivery following oral administration. KEY RESULTS PMX205 nanoparticles were non-toxic and released bioactive PMX205 in simulated colon fluid. In vivo imaging of Cy5-labelled nanoparticles demonstrated rapid entry and persistence in the mouse colon for up to 48 h. Next, we utilised the dextran sodium sulphate-induced colitis model to examine efficacy of the C5a1 receptor-antagonist formulation. We show that oral administration of PMX205 nanoparticles every 2 days from symptom onset significantly mitigated weight loss, clinical illness, colon length reduction and epithelial damage to a similar degree as C5a1 receptor-/- mice. Notably, unformulated PMX205 was markedly less effective in this dosing regimen. CONCLUSION AND IMPLICATIONS This novel colon-targeted formulation therefore offers a potent therapeutic strategy for translating C5a1 receptor antagonists for IBD conditions such as ulcerative colitis.
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Affiliation(s)
- Cedric S Cui
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Titaya Lerskiatiphanich
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Xaria X Li
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Rabina Giri
- Mater Research Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - Ning Liu
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Vinod Kumar
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Andrew K Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland, Australia
| | - Felicity Y Han
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Queensland, Australia
| | - Richard J Clark
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Jakob Begun
- Mater Research Institute, Translational Research Institute, Brisbane, Queensland, Australia
| | - John D Lee
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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Jesenko T, Kranjc Brezar S, Pisljar Z, Bozic T, Markelc B, Cazzato M, Grassi G, Cemazar M. Effective targeting of E2F1 transcription factor via siRNA gene electrotransfer in HT-29 colorectal carcinoma xenografts. Bioelectrochemistry 2025; 165:108994. [PMID: 40311353 DOI: 10.1016/j.bioelechem.2025.108994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2025] [Revised: 04/22/2025] [Accepted: 04/24/2025] [Indexed: 05/03/2025]
Abstract
Colorectal cancer (CRC) remains a significant global health concern, with survival outcomes heavily dependent on the stage at diagnosis. Targeted therapies offer a promising approach to improve patient outcomes, particularly by addressing molecular drivers of tumor progression. One such target is the E2F1 transcription factor, a key regulator of the cell cycle and a contributor to proliferation, differentiation, apoptosis, metastasis, and chemoresistance in CRC. Previous studies have demonstrated the efficacy of E2F1 silencing via siRNA-loaded nanoliposomes in reducing tumor cell growth, but challenges such as immunogenicity and off-target effects have limited their in vivo application. In this study, we evaluated the potential of gene electrotransfer (GET) as a non-viral delivery system for delivery of therapeutic siRNA targeting E2F1 in the HT-29 CRC model. In vitro experiments showed effective silencing of E2F1 expression and a significant reduction in HT-29 cell survival. Subsequent in vivo studies confirmed the therapeutic potential of siE2F1 GET, with results demonstrating tumor growth delay, decreased proliferation, and increased necrosis in the tumors. This study establishes proof-of-principle for targeting E2F1 in CRC using GET, showcasing its versatility and therapeutic potential.
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Affiliation(s)
- Tanja Jesenko
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia; Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana 1000, Slovenia
| | - Simona Kranjc Brezar
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia; Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana 1000, Slovenia
| | - Ziva Pisljar
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia
| | - Tim Bozic
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia
| | - Bostjan Markelc
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia; Biotechnical faculty, University of Ljubljana, Jamnikarjeva ulica 101, Ljubljana 1000, Slovenia
| | - Monica Cazzato
- University of Trieste, Piazzale Europa 1, Trieste 34127, Italy
| | - Gabriele Grassi
- Clinical Department of Medical, Surgical and Health Sciences, Cattinara University Hospital, Trieste University, Strada di Fiume 447, I-34149 Trieste, Italy.
| | - Maja Cemazar
- Institute of Oncology Ljubljana, Zaloska cesta 2, Ljubljana 1000, Slovenia; Faculty of Health Sciences, University of Primorska, Polje 42, Izola 6310, Slovenia.
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Rahimi K, Rezaie A, Hatamnezhad M, Ziyaei A, Alimohammadi MJ. Alpha-pinene protects rat liver against acetaminophen-induced oxidative stress and apoptosis. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2025:10.1007/s00210-025-04168-x. [PMID: 40261348 DOI: 10.1007/s00210-025-04168-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Accepted: 04/09/2025] [Indexed: 04/24/2025]
Abstract
Acetaminophen (APA) is a commonly used antipyretic and analgesic medication worldwide. The current study aims to investigate the relationship between alpha-pinene, oxidative stress factors, genes involved in the apoptotic pathway, and liver damage caused by PAR. Thirty Wistar rats were divided into five groups: a control group and four treatment groups receiving APA (0.640 g/kg/day), APA+alpha-pinene (75 mg/kg), APA+alpha-pinene (125 mg/kg), and APA+ silymarin (50 mg/kg). The treatment groups were injected with APA for 2 weeks, while the control group received distilled water. The study assessed liver enzymes, oxidative stress factors, and apoptotic gene expression. We found that alpha-pinene decreased the ALT, AST, and ALP levels in the liver of PAR-treated rats. Alpha-pinene restored GSH, MDA, SOD, and CAT activities in the liver of PAR-treated rats. Real-time PCR analysis showed that alpha-pinene inhibited apoptosis by suppressing Bax and caspase-3 and upregulating Bcl-2 in the liver of APA-treated rats. Moreover, alpha-pinene downregulates PPARγ in the liver of APA-treated rats. Alpha-pinene has been discovered to have protective properties against liver damage caused by the use of APA. This protection is achieved by reducing oxidative stress and apoptosis. Alpha-pinene increases the expression of Bcl-2, which has an anti-apoptotic effect and reduces the levels of Bax and caspase-3.
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Affiliation(s)
- Kaveh Rahimi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Anahita Rezaie
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohammad Hatamnezhad
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Atousa Ziyaei
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohammad Javad Alimohammadi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Li L, Tang H, She L, Lin Z, Yu Q, Zeng Y, Chen L, Chen F, Liang G, Zhao X, Cho N, Wang Y. Dehydroabietic acid protects against cerebral ischaemia-reperfusion injury by modulating microglia-mediated neuroinflammation via targeting PKCδ. Br J Pharmacol 2025. [PMID: 40262763 DOI: 10.1111/bph.70030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2024] [Revised: 01/15/2025] [Accepted: 03/01/2025] [Indexed: 04/24/2025] Open
Abstract
BACKGROUND AND PURPOSE Cerebral ischaemia-reperfusion injury (CIRI) is a major contributor to global morbidity and mortality, although its underlying mechanisms remain only partly understood. Emerging evidence indicates that inhibiting microglia-mediated neuroinflammation would be an effective therapeutic approach for CIRI, and pharmacological interventions targeting this pathway hold significant therapeutic promise. This study aimed to identify a potent anti-inflammatory drug from a natural compound library as a potential treatment for CIRI. EXPERIMENTAL APPROACH We used oxygen-glucose deprivation/reperfusion (OGD/R) and middle cerebral artery occlusion in male C57BL/6 mice to evaluate the efficacy of DHA in neurological deficits and the anti-inflammatory effects. Using BV2 cells and murine brain tissue, liquid chromatography-tandem mass spectrometry was used to identify potential molecular targets of DHA, followed by bio-layer interferometry, molecular docking, molecular dynamics simulations and cellular thermal shift assays to validate DHA's binding interactions with protein kinase C delta (PKCδ). KEY RESULTS DHA decreased production of pro-inflammatory cytokines following OGD/R, thereby inhibiting microglia-mediated neuroinflammation to protect neurons and reducing brain infarct size and improving neurological outcomes. Mechanistically, DHA directly bound to PKCδ, inhibiting its phosphorylation and downstream NF-κB signalling. This binding interaction involved TRP55 and LEU106 on PKCδ, as confirmed by molecular docking and other biophysical techniques. CONCLUSION AND IMPLICATIONS DHA specifically interacts with PKCδ, preventing its phosphorylation induced by ischaemia-reperfusion injury. These results suggest that DHA is a novel inhibitor of PKCδ and provide solid experimental foundations for using DHA in treating neuroinflammation-related conditions, such as CIRI.
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Affiliation(s)
- Luyao Li
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
- College of Pharmacy, Chonnam National University, Gwangju, South Korea
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Hao Tang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
| | - Lingyu She
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Zhen Lin
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, China
| | - Qin Yu
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Yuqing Zeng
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Linjie Chen
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Fan Chen
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Guang Liang
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Xia Zhao
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Namki Cho
- College of Pharmacy, Chonnam National University, Gwangju, South Korea
| | - Yi Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
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Feng S, Jin Y, Ni X, Zheng H, Wu L, Xia Y, Zhou C, Liang T, Zhu Y, Xu J, Wu Q, Yang Y, Zhao L, Zhuang S, Li X. FGF1 ΔHBS ameliorates DSS-induced ulcerative colitis by reducing neutrophil recruitment through the MAPK pathway. Br J Pharmacol 2025. [PMID: 40258390 DOI: 10.1111/bph.70049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 02/17/2025] [Accepted: 03/19/2025] [Indexed: 04/23/2025] Open
Abstract
BACKGROUND AND PURPOSE Inflammatory bowel diseases (IBDs) constitute chronic inflammatory disease of the gastrointestinal tract, with escalating global prevalence. There is a pressing demand for safe and effective treatments for IBDs. Fibroblast growth factor 1 (FGF1) variant FGF1ΔHBS, characterised by reduced mitogenic capacity, has shown promising therapeutic potential in various inflammatory conditions, including obesity and diabetic nephropathy. Hence, exploring the therapeutic impact of FGF1ΔHBS on colitis is warranted. EXPERIMENTAL APPROACH The protective role of FGF1ΔHBS was evaluated using a dextran sulphate sodium (DSS)-induced colitis model in mice. RNA-seq analysis was performed on colonic tissues. Inflammatory factor expression was examined by quantitative real-time polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay. Flow cytometry and immunofluorescence staining were employed to confirm the inhibitory effect of FGF1ΔHBS on neutrophil recruitment. Western blotting was performed to explore the mitogen-activated protein kinase (MAPK) signalling pathway. KEY RESULTS FGF1ΔHBS significantly alleviated DSS-induced colitis, as indicated by reduced Disease Activity Index scores and less histological injury to the colon. Additionally, FGF1ΔHBS decreased the expression of pro-inflammatory factors. Mechanistically, FGF1ΔHBS inhibited neutrophil-associated chemokine expression in intestinal epithelial cells by suppressing the MAPK signalling pathway, thereby reducing neutrophil recruitment and attenuating neutrophil-mediated intestinal inflammation. CONCLUSION AND IMPLICATIONS FGF1ΔHBS protects against DSS-induced colitis in mice by inhibiting neutrophil recruitment through MAPK activity suppression, suggesting a potential therapeutic strategy for preventing IBDs.
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Affiliation(s)
- Shuang Feng
- Institute of Translational Medicine, China Pharmaceutical University, Nanjing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Yanyan Jin
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Xinrui Ni
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Haoxin Zheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Linling Wu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Ying Xia
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Changzhi Zhou
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Tong Liang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Yunfei Zhu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Juyi Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Qijin Wu
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Yong Yang
- Institute of Translational Medicine, China Pharmaceutical University, Nanjing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Longwei Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
- State Key Laboratory of Macromolecular Drugs and Large-scale Preparation, School of Pharmaceutical Sciences, Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Shentian Zhuang
- Institute of Translational Medicine, China Pharmaceutical University, Nanjing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Xianjing Li
- Institute of Translational Medicine, China Pharmaceutical University, Nanjing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
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Khodir SA, Shaban AM, Sweed E, El-Aziz NMA, Mostafa BA, Latif AAA, El-Kalshy MM, Elgizawy EI. METRNL mitigates oxidative stress and inflammatory drawbacks in ovalbumin/lipopolysaccharide-induced allergic airway diseases via the IKK/IκB/NF-κB signaling pathway. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2025:10.1007/s00210-025-04070-6. [PMID: 40244452 DOI: 10.1007/s00210-025-04070-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2025] [Accepted: 03/17/2025] [Indexed: 04/18/2025]
Abstract
This study aimed to examine the potential impacts of METRNL as an antioxidant and anti-inflammatory through IκB kinase/inhibitor of nuclear factor-kappa B/nuclear factor-kappa-light-chain signaling pathway on many biomarkers and lung structure in rats with bronchial asthma induced by ovalbumin/lipopolysaccharide (OVA/LPS). Forty rats were randomly divided into four equal groups: control group, vehicle group, diseased (OVA/LPS) group OVA 2.5 ml/kg intratracheal installation/LPS 1.5 mg/kg intraperitoneally, and treated (OVA/LPS + METRNL) group, METRNL at a dose of 2 mg/rat/day IV. After 4 weeks, plasma and lung tissues were analyzed to assess oxidative stress inflammatory markers. Additionally, a histological assessment was conducted on lung tissues. Bronchial asthma was confirmed when increased levels of total serum IgE, total cell count, neutrophils, eosinophils, macrophages, and lymphocyte counts in the BAL fluid were observed. Moreover, OVA/LPS resulted in a reduction in levels of superoxide dismutase (SOD) while raising levels of malondialdehyde (MDA). Furthermore, it elevated concentrations of plasma inflammatory mediators, including tumor necrosis factor-alpha (TNF-alpha), interleukin 17 (IL-17), and transforming growth factor beta (TGF-β). The protective effects of METRNL were analyzed. The observed impacts are believed to result from the drug's anti-inflammatory and antioxidant properties and its action on the IKK/IκB/NF-κB signaling pathway. This investigation indicates that METRNL treatment positively improved rats' biochemical and histological aspects of OVA/LPS-induced airway allergic inflammation.
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Affiliation(s)
- Suzan A Khodir
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
- Medical Physiology Department, Menoufia National University, Menoufia, Egypt
| | - Anwaar M Shaban
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Eman Sweed
- Clinical Pharmacology Department, Faculty of Medicine, Menoufia, Egypt
- Clinical Pharmacology Department, Menoufia National University, Menoufia, Egypt
| | | | - Basma Abdelnaby Mostafa
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Menoufia, Egypt
- Medical Biochemistry and Molecular Biology Department, Menoufia National University, Menoufia, Egypt
| | - Asmaa A Abdel Latif
- Public Health and Community Medicine Department, Faculty of Medicine, Industrial Medicine and Occupational Health Specialty, Menoufia University, Menoufia, Egypt
| | - Mai M El-Kalshy
- Department of Chest Diseases, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Eman I Elgizawy
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, Egypt.
- Medical Physiology Department, Menoufia National University, Menoufia, Egypt.
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Sredenšek J, Brankovič J, Lampreht Tratar U, Čemažar M, Đokić M, Seliškar A. Evaluation of methylene blue solution distribution in the four-point transversus abdominis plane block technique in pigs: a pilot anatomical study. Front Vet Sci 2025; 12:1574833. [PMID: 40308690 PMCID: PMC12040921 DOI: 10.3389/fvets.2025.1574833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2025] [Accepted: 03/31/2025] [Indexed: 05/02/2025] Open
Abstract
Aim This prospective pilot anatomical study aimed to develop an ultrasound-guided transversus abdominis plane (TAP) block technique that desensitises cranial and mid-abdominal wall in grower pigs. We hypothesised that a four-point TAP approach would be more efficient than a three-point TAP in staining relevant nerves of the cranial and mid-abdominal wall. Methods In phase I, the ultrasound anatomy of the abdominal wall musculature was examined on three pig cadavers (two piglets and one fattening pig) and the ultrasound localization of the needle in the corresponding interfascial plane was practised. In phase II, a three-point TAP injection was performed in three freshly euthanized cadavers of grower pigs. A 1% methylene blue solution (0.3 mL/kg per injection point) was injected between the transversus abdominis and internal oblique muscle. In phase III, methylene blue solution was injected at four points (0.2 mL/kg per injection point) in four anaesthetized grower pigs prior to euthanasia. Positive nerve staining was defined as continuous staining of at least 1 cm of the nerve length. Binary variables (positive/negative) were used for nerve staining assessment. Results The four-point TAP technique with a lower injection volume stained more nerves than the three-point technique with a higher injection volume, i.e., 69% of the observed nerves from the eighth-last thoracic to the third lumbar nerve were stained with the four-point TAP technique. The nerves in the centre were stained with a higher success rate, while the eighth-last thoracic and the second lumbar nerve were stained with less success (1/8 and 3/8, respectively). The third lumbar nerve was not stained. Conclusion The four-point TAP technique could be used as part of a multimodal analgesia approach for cranial and mid-abdominal surgery in pigs, but live animal studies are needed to evaluate the clinical applicability and efficacy of desensitisation.
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Affiliation(s)
- Jerneja Sredenšek
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Jana Brankovič
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Urša Lampreht Tratar
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Maja Čemažar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
| | - Mihajlo Đokić
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Department of Abdominal Surgery, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Alenka Seliškar
- Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
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Zhou M, Tao X, Lin K, Leng C, Yang Y, Gui Y, Sun Y, Zhou M, Sun B, Xia Y, Shu X, Liu W. Downregulation of the HCN1 Channel Alleviates Anxiety- and Depression-Like Behaviors in Mice With Cerebral Ischemia-Reperfusion Injury by Suppressing the NLRP3 Inflammasome. J Am Heart Assoc 2025; 14:e038263. [PMID: 40207529 DOI: 10.1161/jaha.124.038263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Accepted: 03/20/2025] [Indexed: 04/11/2025]
Abstract
BACKGROUND Post-stroke depression (PSD) is a prevalent neuropsychiatric complication of stroke. However, the mechanisms underlying PSD are still unclear. Here, we aimed to investigate the role of HCN1 (hyperpolarization-activated cyclic nucleotide-gated cation channel 1) in the pathogenesis of PSD and its underlying mechanisms. METHODS The PSD mice model was established by middle cerebral artery occlusion in vivo. Four weeks after middle cerebral artery occlusion, anxiety- and depression-like behaviors of mice were evaluated by various behavioral tests. HCN channels were downregulated by pharmacological inhibitor or neuron-specific adeno-associated virus. The oxygen-glucose deprivation/reoxygenation model in SY5Y cells was used to study the pathogenesis of PSD in vitro. RESULTS Mice exhibited anxiety- and depression-like behavior 4 weeks after middle cerebral artery occlusion, along with a significant increase in HCN1 protein expression in the ischemic hippocampus. Furthermore, the Ih current on neurons in the hippocampus was notably enhanced, whereas neuronal excitability was decreased in PSD mice. Treatment with HCN channel selective inhibitor ZD7288 protected SY5Y cells against oxygen-glucose deprivation/reoxygenation injury by suppressing K+ efflux. Additionally, we observed a significant increase in protein expressions of NLRP3 (nucleotide-binding domain-like receptor protein 3) inflammasome pathway-related molecules in the ischemic hippocampus of PSD mice. Knockdown of HCN1 channels via virus injection into the hippocampus resulted in decreased protein expressions of NLRP3 inflammasome-related molecules and improvement in anxiety- and depression-like behaviors in PSD mice. CONCLUSIONS Downregulation of HCN1 channels has a beneficial effect on PSD by suppressing the NLRP3 inflammasome pathway, thus offering promise as a strategy for preventing and treating PSD.
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Affiliation(s)
- Mei Zhou
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
- Institute of Cerebrovascular Disease, School of Medicine, Jianghan University Wuhan China
| | - Xiaoqin Tao
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Kuan Lin
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Changlong Leng
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
- Institute of Cerebrovascular Disease, School of Medicine, Jianghan University Wuhan China
| | - Youhua Yang
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Yuran Gui
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Yaojian Sun
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Meiling Zhou
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Binlian Sun
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Yiyuan Xia
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Xiji Shu
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
| | - Wei Liu
- Hubei Key Laboratory of Cognitive and Affective Disorder Jianghan University Wuhan China
- Institute of Biomedical Sciences, School of Medicine, Jianghan University Wuhan China
- Institute of Cerebrovascular Disease, School of Medicine, Jianghan University Wuhan China
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Xuan Y, Gao X, Wang J, Li H, Zhou Z, Liao M, Wen Z, Wang DW. Hydroxychloroquine cures autoimmune myocarditis by inhibiting the innate immune system via the C-X-C motif chemokine ligand 16 and C-X-C motif receptor 6 axis between macrophages and T cells. Br J Pharmacol 2025. [PMID: 40222951 DOI: 10.1111/bph.70028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 12/31/2024] [Accepted: 03/02/2025] [Indexed: 04/15/2025] Open
Abstract
BACKGROUND AND PURPOSE Myocarditis is a life-threatening inflammatory disease, but lacks effective treatment options. Hydroxychloroquine (HCQ), an established antimalarial agent, is used widely to manage rheumatic disorders. This research aimed to evaluate the efficacy of HCQ in treating myocarditis. EXPERIMENTAL APPROACH A mouse model of experimental autoimmune myocarditis (EAM) was used to evaluate the therapeutic effects of HCQ on cardiac function, inflammation and fibrosis. Echocardiography, histology and cytokine assays were performed to assess cardiac function and inflammatory responses. Single-cell RNA sequencing was employed to analyse immune cell populations and chemotactic activity. C-X-C motif chemokine ligand 16 (CXCL16) levels were measured in cardiac tissue and serum, while YY1 expression was measured by western blotting in macrophages and cardiac tissue. Flow cytometry was used to evaluate immune cell infiltration and migration. KEY RESULTS HCQ improved cardiac function in acute and chronic myocarditis. HCQ treatment reduced inflammation, fibrosis and immune cell infiltration in myocarditis models. Single-cell RNA sequencing revealed that HCQ lowered inflammatory cell proportions and suppressed macrophage chemotaxis. HCQ reduced YY1 levels, leading to the down-regulation of CXCL16 expression in macrophages and inhibition of CXCL16-mediated chemotaxis to Th17 and natural killer T (NKT) cells. CXCL16 neutralizing antibodies improved cardiac function and reduced inflammation in myocarditis. CONCLUSION AND IMPLICATIONS HCQ improves cardiac function and reduces inflammation in myocarditis by inhibiting CXCL16 expression in macrophages, by suppressing its transcription factor YY1, which in turn reduced the chemotaxis of Th17 and NKT cells. HCQ is a promising therapeutic agent for myocarditis.
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Affiliation(s)
- Yunling Xuan
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xu Gao
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin Wang
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huihui Li
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhou Zhou
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Minyu Liao
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Wen
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dao Wen Wang
- Division of Cardiology and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Mu SY, Xu R, Wu XF, Cheng YY, Sun ZM, Liu HT, Shao HB, Zhang XN, Zhang XN, Yang M, Tan MY, Liang WS, Wan SB, Cui SX, Qu XJ. Inhibition of sphingosine-1-phosphate receptor-2 attenuates idiopathic pulmonary fibrosis by preventing its binding to dapper1 in bronchial epithelial cells. Br J Pharmacol 2025. [PMID: 40222913 DOI: 10.1111/bph.70043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2024] [Revised: 01/20/2025] [Accepted: 03/04/2025] [Indexed: 04/15/2025] Open
Abstract
BACKGROUND AND PURPOSE Activation of the sphingosine-1-phosphate receptor-2 (S1P2 receptor) promotes idiopathic pulmonary fibrosis (IPF). However, the mechanisms associated with IPF development via S1P2 receptor signalling are poorly understood and no S1P2 receptor antagonists have been approved for clinical use. EXPERIMENTAL APPROACH Western blotting and immunohistochemical assays analysed inflammatory factors and epithelial-mesenchymal transition (EMT) markers. Co-immunoprecipitation and immunofluorescence analysed the binding of S1P2 receptor to dapper1 (Dpr1) and cyclic AMP response-binding protein 1 (CREB1). X-ray-based computed tomography diagnosed IPF in bleomycin (BLM)-treated mice. Barometric whole-body plethysmography tested pulmonary function of mice. Masson's trichrome and Sirius red staining analysed extracellular matrix deposition. Enzyme-linked immunosorbent assays analysed inflammatory factors and hydroxyproline. KEY RESULTS Activation of S1P2 receptors promoted IPF through the binding of S1P2 receptor to Dpr1, decreasing dishevelled (Dvl) degradation to accumulate β-catenin. The β-catenin accumulated in the nucleus, upregulating its target genes by binding to T-cell factor/lymphoid enhancer factor. The binding of S1P2 receptor to Dpr1 also led to S1P2 receptor translocation to the nucleus, where it promoted EMT by activating CREB1. BLM-induced IPF in mice was characterised by activated-S1P2 receptor signalling. Inhibition of S1P2 receptor prevented the binding of S1P2 receptor to Dpr1, resulting in decreased β-catenin accumulation and blocking nuclear translocation of S1P2 receptor. The S1P2 receptor antagonist S118 was more effective than pirfenidone in attenuating IPF through anti-inflammatory, anti-fibrosis, and anti-EMT effects. CONCLUSIONS AND IMPLICATIONS Activation of S1P2 receptors promotes IPF through the binding of S1P2 receptor to Dpr1 and the nuclear translocation of S1P2 receptor to activate CREB1. Thus, the S1P2 receptor antagonist S118 has potential clinical application in attenuating IPF.
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Affiliation(s)
- Si-Yuan Mu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Rui Xu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xin-Feng Wu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yu-Yao Cheng
- Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Zhi-Meng Sun
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Han-Tao Liu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Han-Bing Shao
- Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Xiao-Nan Zhang
- Department of Pharmacology, Marine Biomedical Research Institute of Qingdao, Qingdao, China
| | - Xi-Nan Zhang
- Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Ming Yang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Ming-Yong Tan
- Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Wei-Shi Liang
- Joint Laboratory for Research and Treatment of Spinal Cord Injury in Spinal Deformity, Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Sheng-Biao Wan
- Key Laboratory of Marine Drugs, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Shu-Xiang Cui
- Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Xian-Jun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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Chen W, Jin T, Xie Y, Zhong C, Gao H, Zhang L, Ju J, Cheng T, Li M, Wang H, Yang Z, Deng Q, Du Z, Liang H. Berberine partially ameliorates cardiolipotoxicity in diabetic cardiomyopathy by modulating SIRT3-mediated lipophagy to remodel lipid droplets homeostasis. Br J Pharmacol 2025. [PMID: 40222752 DOI: 10.1111/bph.70035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/18/2025] [Accepted: 02/27/2025] [Indexed: 04/15/2025] Open
Abstract
BACKGROUND AND PURPOSE Emerging evidence indicated that the excessive lipid droplets (LDs) accumulation and lipotoxicity play a significant role in the development of diabetic cardiomyopathy (DCM), yet the regulatory mechanisms governing the function of cardiac LDs are still unknown. Lipophagy has been shown to be involved in the maintenance of LDs homeostasis. The objective of this study was to explore the mechanism of lipophagy in cardiomyocytes and investigate whether berberine could mitigate DCM by modulating this pathway. EXPERIMENTAL APPROACH Bioinformatics analysis identified disorders of lipid metabolism and autophagy in DCM. To carry out further research, db/db mice were utilized. Furthermore, H9C2 cells treated with palmitic acid were employed as a model to explore the molecular mechanisms involved in myocardial lipotoxicity. KEY RESULTS The results showed that lipophagy was impaired in DCM. Mechanistically, sirtuin 3 (SIRT3) was demonstrated to regulate lipophagy in cardiomyocytes. SIRT3 was down-regulated in DCM. Conversely, activation of SIRT3 by the activator nicotinamide riboside (NR) could promote lipophagy to alleviate PA-induced lipotoxicity in H9C2 cells. Moreover, berberine administration markedly mitigated diabetes-induced cardiac dysfunction and hypertrophy in db/db mice, which dependent on SIRT3-mediated lipophagy. CONCLUSION AND IMPLICATIONS Collectively, SIRT3 could moderate cardiac lipotoxicity in DCM by promoting lipophagy, suggesting that the regulation of SIRT3-mediated lipophagy may be a promising strategy for treating DCM. The findings indicate that the therapeutic potential of berberine for DCM is associated with lipophagy.
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Affiliation(s)
- Wenxian Chen
- Zhuhai People's Hospital, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Clinical Medical College of Jinan University, Zhuhai, China
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Tongzhu Jin
- Department of Pharmacy at the Second Affiliated Hospital, Harbin Medical University, Harbin, China
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State Key Labratoray -Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yilin Xie
- School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Changsheng Zhong
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Huiying Gao
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State Key Labratoray -Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Lei Zhang
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Jin Ju
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Ting Cheng
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Mengyang Li
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Huifang Wang
- School of Pharmacy, Health Science Center, Shenzhen University, Shen Zhen, China
| | - Zhenbo Yang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State Key Labratoray -Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Qin Deng
- School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Zhimin Du
- Zhuhai People's Hospital, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Clinical Medical College of Jinan University, Zhuhai, China
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Haihai Liang
- Zhuhai People's Hospital, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Clinical Medical College of Jinan University, Zhuhai, China
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State Key Labratoray -Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, China
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Guillebaud J, Ou TP, Hul V, Hoem T, Meng C, Nuon S, Hoem S, Lim R, Khun L, Furey NM, Cappelle J, Duong V, Chevalier V. Study of coronavirus diversity in wildlife in Northern Cambodia suggests continuous circulation of SARS-CoV-2-related viruses in bats. Sci Rep 2025; 15:12628. [PMID: 40221475 PMCID: PMC11993651 DOI: 10.1038/s41598-025-92475-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2024] [Accepted: 02/27/2025] [Indexed: 04/14/2025] Open
Abstract
Since SARS-CoV-2's emergence, studies in Southeast Asia, including Cambodia, have identified related coronaviruses (CoVs) in rhinolophid bats. This pilot study investigates the prevalence and diversity of CoVs in wildlife from two Cambodian provinces known for wildlife trade and environmental changes, factors favoring zoonotic spillover risk. Samples were collected from 2020 to 2022 using active (capture and swabbing of bats and rodents) and non-invasive (collection of feces from bat caves and wildlife habitats) methods. RNA was screened for CoVs using conventional pan-CoVs and real-time Sarbecovirus-specific PCR systems. Positive samples were sequenced and phylogenetic analysis was performed on the partial RdRp gene. A total of 2608 samples were collected: 867 rectal swabs from bats, 159 from rodents, 41 from other wild animals, and 1541 fecal samples. The overall prevalence of CoVs was 2.0%, with a 3.3% positive rate in bats, 2.5% in rodents, and no CoVs detected in other wildlife species. Alpha-CoVs were exclusive to bats, while Beta-CoVs were found in both bats and rodents. Seven SARS-CoV-2-related viruses were identified in Rhinolophus shameli bats sampled in August 2020, March 2021, and December 2021. Our results highlight diverse CoVs in Cambodian bats and rodents and emphasize bats as significant reservoirs. They also suggest continuous circulation of bat SARS-CoV-2-related viruses may occur in a region where ecological and human factors could favor virus emergence. Continuous surveillance and integrated approaches are crucial to managing and mitigating emerging zoonotic diseases.
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Affiliation(s)
- Julia Guillebaud
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.
- International Centre of Research in Agriculture for Development (CIRAD), UMR ASTRE, Montpellier, France.
| | - Tey Putita Ou
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Vibol Hul
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Thavry Hoem
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Chana Meng
- Department of Wildlife and Biodiversity, Forestry Administration, Ministry of Agriculture, Forestry and Fisheries, Phnom Penh, Cambodia
| | - Sithun Nuon
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sreyleak Hoem
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Reaksa Lim
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Limmey Khun
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | | | - Julien Cappelle
- International Centre of Research in Agriculture for Development (CIRAD), UMR ASTRE, Montpellier, France
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Véronique Chevalier
- International Centre of Research in Agriculture for Development (CIRAD), UMR ASTRE, Montpellier, France
- Epidemiology and Clinical Research Unit, Institut Pasteur de Madagascar, Antananarivo, Madagascar
- CIRAD, UMR ASTRE, Antananarivo, Madagascar
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Pantke S, Steinberg JH, Weber LKH, Fricke TC, Carvalheira Arnaut Pombeiro Stein I, Oprita G, Herzog C, Leffler A. High Concentrations of the Antidepressant Amitriptyline Activate and Desensitize the Capsaicin Receptor TRPV1. Pharmaceuticals (Basel) 2025; 18:560. [PMID: 40283995 PMCID: PMC12030456 DOI: 10.3390/ph18040560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2025] [Revised: 04/03/2025] [Accepted: 04/08/2025] [Indexed: 04/29/2025] Open
Abstract
Background: A large number of patients suffer from neuropathic pain, and systemic therapy often remains ineffective while inducing severe side effects. Topical therapy with the TRPV1-agonist capsaicin is an established alternative, and the identification of co-therapeutics that modulate TRPV1 may be a promising approach to reduce the dose of capsaicin while maintaining efficacy. Here, we aimed to determine if the antidepressant amitriptyline displays properties rendering it a potential co-therapeutic agent. Methods: We performed patch clamp and calcium imaging experiments on HEK293T cells expressing human (h) TRPV1 as well as on dorsal root ganglion (DRG) neurons from adult mice. Results: Amitriptyline induced an increase in intracellular calcium in both HEK293T and mouse DRG neurons expressing TRPV1. Patch clamp experiments revealed a concentration-dependent activation of hTRPV1 by amitriptyline that was also evident in cell-free inside-out patches. When hTRPV1 was fully activated by capsaicin, amitriptyline induced concentration-dependent and partly reversible current inhibition. In contrast, amitriptyline potentiated small responses to capsaicin, heat and protons. We also found that amitriptyline desensitized hTRPV1 to capsaicin. This effect was reduced by the intracellular application of the strong calcium chelator BAPTA. Furthermore, the non-desensitizing mutant hTRPV1-Y672K displayed a reduced amitriptyline-induced desensitization. Conclusions: Our data showed that amitriptyline can activate, sensitize, desensitize and even inhibit TRPV1. Together with its property as a strong local anesthetic, our data suggest that amitriptyline may be a promising adjunct to topical capsaicin.
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Affiliation(s)
- Sebastian Pantke
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
- PRACTIS Clinician Scientist Program, Dean’s Office for Academic Career Development, Hannover Medical School, 30625 Hannover, Germany
| | - Johanna H. Steinberg
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
| | - Lucas K. H. Weber
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
| | - Tabea C. Fricke
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
- PRACTIS Clinician Scientist Program, Dean’s Office for Academic Career Development, Hannover Medical School, 30625 Hannover, Germany
| | - Inês Carvalheira Arnaut Pombeiro Stein
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
- PRACTIS Clinician Scientist Program, Dean’s Office for Academic Career Development, Hannover Medical School, 30625 Hannover, Germany
| | - George Oprita
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
| | - Christine Herzog
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
| | - Andreas Leffler
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany; (S.P.); (J.H.S.); (L.K.H.W.); (I.C.A.P.S.); (G.O.); (C.H.)
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Fan BQ, Xia JM, Yi XW, Yuan TJ, Zhou Y, Xu R, Wang L, Wang D, Xia Y, Yi WJ, Ding JH, Qu WM, Li WX, Huang ZL, Han Y. Ventral pallidum GABAergic and glutamatergic neurons modulate arousal during sevoflurane general anaesthesia in male mice. Br J Pharmacol 2025. [PMID: 40205920 DOI: 10.1111/bph.70019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2024] [Revised: 01/17/2025] [Accepted: 02/12/2025] [Indexed: 04/11/2025] Open
Abstract
BACKGROUND AND PURPOSE The induction and emergence of general anaesthesia involve an altered process of states of consciousness, yet the central nervous system mechanisms remain inadequately understood. The ventral pallidum (VP) within the basal ganglia is crucial in sleep-wake modulation. However, its involvement in general anaesthesia and the underlying neuronal mechanisms are not well elucidated. EXPERIMENTAL APPROACH In vivo electrophysiological recordings were conducted to examine changes in the activity of different types of VP neurons before and after sevoflurane exposure. Fibre photometry, combined with electroencephalogram and electromyography recordings, was employed to analyse neuronal activity during both the induction and recovery phases of sevoflurane anaesthesia. Chemogenetics was implemented to investigate the impact of modulated neuronal activity on anaesthesia induction and emergence, whereas optogenetics was used for real time activation of neurons at different depths of anaesthesia. KEY RESULTS Sevoflurane exposure reduced the firing activity of both VP GABAergic (VPGABA) and VP glutamatergic (VPglu) neurons, without affecting cholinergic neurons. VPGABA and VPglu neuronal activity decreased during sevoflurane anaesthesia induction and increased during emergence. Manipulation of VPGABA neurons bidirectionally influenced the duration of induction and emergence. Inhibiting VPglu neurons accelerated induction. Real time activation of VPGABA neurons triggered cortical activation and behavioural emergence during steady-state sevoflurane anaesthesia and reduced the burst suppression ratio during deep anaesthesia. CONCLUSION AND IMPLICATIONS These findings highlight the role of VPGABA and VPglu neurons in modulating transitions between anaesthesia stages, providing valuable insights into the neuronal mechanisms underlying sevoflurane-induced anaesthesia.
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Affiliation(s)
- Bing-Qian Fan
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology and MOE Frontiers Centre for Brain Science, Institutes of Brain Science, Joint International Research Laboratory of Sleep, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Anaesthesiology and Perioperative Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun-Ming Xia
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Xiu-Wen Yi
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Tian-Jie Yuan
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Yu Zhou
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Rui Xu
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Lu Wang
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology and MOE Frontiers Centre for Brain Science, Institutes of Brain Science, Joint International Research Laboratory of Sleep, Shanghai Medical College, Fudan University, Shanghai, China
| | - Di Wang
- Department of Anaesthesiology and Perioperative Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ying Xia
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Wen-Jing Yi
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Jia-Hui Ding
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Wei-Min Qu
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology and MOE Frontiers Centre for Brain Science, Institutes of Brain Science, Joint International Research Laboratory of Sleep, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wen-Xian Li
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Zhi-Li Huang
- Department of Pharmacology, School of Basic Medical Sciences; State Key Laboratory of Medical Neurobiology and MOE Frontiers Centre for Brain Science, Institutes of Brain Science, Joint International Research Laboratory of Sleep, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Anaesthesiology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Yuan Han
- Department of Anaesthesiology, Eye & ENT Hospital of Fudan University, Shanghai, China
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Jørgensen AR, Hansen AE, Henriksen JR, Stilling M, Rasmussen HC, Lilleøre JG, Hvistendahl MA, Slater J, Serrano-Chávez E, Hansen J, Bue M. Injectable sustained local release doxorubicin depot technology- a promising adjuvant to systemic treatment? Drug Deliv Transl Res 2025:10.1007/s13346-025-01841-9. [PMID: 40178754 DOI: 10.1007/s13346-025-01841-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2025] [Indexed: 04/05/2025]
Abstract
Drug depot technologies that release chemotherapeutics locally in cancerous tissues present an intriguing strategy. This study aimed to assess the feasibility, delivery capacity, and therapeutic efficacy of a thin needle injectable doxorubicin-loaded carbohydrate-ester-based (CarboCell) depot technology. CarboCell was evaluated in three experimental setups: (A) In non-tumorous mice, release kinetics were evaluated 24 h and 48 h after a subcutaneous depot injection. (B) In mice with syngeneic CT 26 colorectal cancer, efficacy was evaluated based on tumour growth control and survival. This was done by two intratumoral injections of 50 µl CarboCell containing 1 mg/mL or 4 mg/mL doxorubicin at 5 days intervals. (C) In ten female pigs, local and distant release of doxorubicin from a 2 mg/mL doxorubicin CarboCell (2 or 4 mL) injected into tibial metaphysis was evaluated using microdialysis in nine tissue compartments. (A) Subcutaneous CarboCell depots demonstrated a sustained release of doxorubicin with (mean ± SEM) 36 ± 13% and 48 ± 20% of the loaded dose being released at 24 h and 48 h time points, respectively. (B) Intratumoral injection effectively controlled tumour growth and markedly extended the median survival time compared to the control group. (C) Doxorubicin peak drug concentrations in the metaphysis were > 0.3 µg/mL and could be quantified at least 10 mm from the application site. The systemic spill-over was minimal. Doxorubicin-loaded CarboCell proved easily administrable, maintaining antitumoral activity, good metaphyseal distribution and providing much higher local concentrations in metaphyseal bone providing high local concentrations in metaphyseal bone with a good distribution and limited systemic exposure.
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Affiliation(s)
- Andrea René Jørgensen
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark.
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark.
| | - Anders Elias Hansen
- Department of Health Technology, Section for Cell and Drug Technologies, Technical University of Denmark, Lyngby, Denmark
| | - Jonas Rosager Henriksen
- Department of Health Technology, Section for Cell and Drug Technologies, Technical University of Denmark, Lyngby, Denmark
| | - Maiken Stilling
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
- Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus N, Denmark
| | - Hans Christian Rasmussen
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Johanne Gade Lilleøre
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Magnus Andreas Hvistendahl
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Josefine Slater
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Elizabeth Serrano-Chávez
- Department of Health Technology, Section for Cell and Drug Technologies, Technical University of Denmark, Lyngby, Denmark
| | - Jakob Hansen
- Department of Forensic Medicine, Aarhus University Hospital, Aarhus N, Denmark
| | - Mats Bue
- Aarhus Denmark Microdialysis Research (ADMIRE), Orthopaedic Research Unit, J112, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus N, Denmark
- Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus N, Denmark
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Jiao B, An C, Du H, Tran M, Yang D, Zhao Y, Wang P, Hu Z, Zhou D, Wang Y. Genetic deficiency or pharmacological inhibition of cGAS-STING signalling suppresses kidney inflammation and fibrosis. Br J Pharmacol 2025; 182:1741-1762. [PMID: 39833988 DOI: 10.1111/bph.17412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 10/12/2024] [Accepted: 10/21/2024] [Indexed: 01/22/2025] Open
Abstract
BACKGROUND AND PURPOSE Chronic kidney disease (CKD) is characterised by inflammation, which can lead to tubular atrophy and fibrosis. The molecular mechanisms are not well understood. In this study, we investigated the functional role of the cyclic GMP-AMP synthase (cGAS)- stimulator of interferon genes (STING) signalling in renal inflammation and fibrosis. EXPERIMENTAL APPROACH Mice with global cGAS deficiency or global or myeloid cell-specific STING deficiency or wild-type mice treated with RU.521, a selective cGAS inhibitor, were used to examine the role of cGAS-STING signalling in renal inflammation and fibrosis in a preclinical model of obstructive nephropathy in vivo. Bone marrow-derived macrophages were used to determine whether tubular epithelial cell-derived DNA can activate cGAS-STING signalling in vitro. KEY RESULTS Following obstructive injury, cGAS-STING signalling was activated in the kidneys during the development of renal fibrosis. Mice with deficiency of cGAS or STING exhibited significantly less macrophage proinflammatory activation, myofibroblast formation, total collagen deposition, and extracellular matrix (ECM) protein production in the kidneys following obstructive injury. Pharmacological inhibition of cGAS with RU.521 reduced macrophage proinflammatory activation, suppressed myofibroblast formation, and attenuated kidney fibrosis following obstructive injury. Mechanistically, cGAS-STING signalling in macrophages is activated by double-stranded DNA released from damaged tubular epithelial cells, which induces inflammatory responses. CONCLUSIONS AND IMPLICATIONS Our study identifies the cGAS-STING signalling pathway as a critical regulator of macrophage proinflammatory activation during the development of renal fibrosis. Therefore, inhibition of cGAS-STING signalling may represent a novel therapeutic strategy for CKD.
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Affiliation(s)
- Baihai Jiao
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Changlong An
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Hao Du
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Melanie Tran
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Duomeng Yang
- Department of Immunology, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yuqi Zhao
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Monrovia, California, USA
| | - Penghua Wang
- Department of Immunology, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Zhaoyong Hu
- Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yanlin Wang
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
- Department of Cell Biology, University of Connecticut School of Medicine, Farmington, Connecticut, USA
- Institute for Systems Genomics, University of Connecticut, Farmington, Connecticut, USA
- Renal Section, VA Connecticut Healthcare System, West Haven, Connecticut, USA
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Yang D, Peng N, Zhang H, Qiu Z, Xu L, Pan M. Cordycepin ameliorates autoimmunity by promoting STING degradation via autophagy pathway. Br J Pharmacol 2025; 182:1546-1560. [PMID: 39675775 DOI: 10.1111/bph.17425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 10/23/2024] [Accepted: 11/18/2024] [Indexed: 12/17/2024] Open
Abstract
BACKGROUND AND PURPOSE Stimulator of interferon response cGAMP interactor 1 (STING), a central hub protein of cyclic GMP-AMP synthase (cGAS)-STING signalling pathway, has a crucial role in regulating type I interferons (IFNs) production and response. Recent studies indicate that excessive activation of STING is strongly associated with autoimmune diseases, including systemic lupus erythematosus (SLE). Searching immunomodulators that negatively regulate STING might greatly contribute to the suppression of autoimmunity. EXPERIMENTAL APPROACH The peripheral blood mononuclear cells (PBMCs) of SLE patients, Hela cells, L929 cells and bone marrow-derived macrophages (BMDMs) from mice were used as in vitro models. While, Trex1 KO mouse autoimmune disease model was used as in vivo model. After treatment with cordycepin, a nucleoside from Cordyceps mushrooms, type I IFNs production and response were determined by western blotting, real-time polymerase chain reaction (PCR), dual-luciferase assay, enzyme-linked immunosorbent assay (ELISA), haematoxylin-eosin staining and RNA-seq. KEY RESULTS Cordycepin inhibited type I IFNs production and response in human and murine systems following cGAS-STING signalling activation. Importantly, cordycepin markedly attenuates the autoinflammatory and autoimmune responses in Trex1 KO BMDMs and Trex1 KO mice. Furthermore, cordycepin effectively suppressed the production of type I IFNs and interferon-stimulated genes (ISGs) in the PBMCs of SLE patients. Mechanistically, cordycepin promoted STING degradation via autophagy pathway upon DNA stimulation. CONCLUSION AND IMPLICATIONS This study shows that cordycepin promotes STING autophagic degradation to alleviate autoimmunity upon DNA stimulation. Cordycepin might be a potential therapeutic candidate for alleviating aberrant type I IFNs in autoimmune and autoinflammatory diseases.
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Affiliation(s)
- Daidi Yang
- Department of Ophthalmology, The First People's Hospital of Wuhu, Wuhu, China
| | - Niannian Peng
- School of Pharmacy, Jiangsu Food and Pharmaceutical Science College, Huaian, China
| | - Hongqian Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Zuocheng Qiu
- Guangdong Provincial Key Laboratory of Speed Capability Research, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Lingxiao Xu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Mingyu Pan
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
- Department of Biomedical Science, City University of Hong Kong, Kowloon, Hong Kong
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Hernandez-Resendiz S, Vilskersts R, Aluja D, Andreadou I, Bencsik P, Dambrova M, Efentakis P, Gao F, Giricz Z, Inserte J, Kelly-Laubscher R, Kiss A, Krieg T, Kwak BR, Lecour S, Lopaschuk G, Mączewski M, Waszkiewicz M, Oknińska M, Pagliaro P, Podesser B, Prag HA, Ruiz-Meana M, Szabados T, Zuurbier CJ, Ferdinandy P, Hausenloy DJ. IMproving Preclinical Assessment of Cardioprotective Therapies (IMPACT): a small animal acute myocardial infarction randomized-controlled multicenter study on the effect of ischemic preconditioning. Basic Res Cardiol 2025; 120:335-346. [PMID: 40072549 PMCID: PMC11976871 DOI: 10.1007/s00395-025-01102-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2024] [Revised: 02/17/2025] [Accepted: 02/17/2025] [Indexed: 03/14/2025]
Abstract
Although many cardioprotective interventions have been shown to limit infarct size (IS), in preclinical animal studies of acute myocardial ischemia/reperfusion injury (IRI), their clinical translation to patient benefit has been largely disappointing. A major factor is the lack of rigor and reproducibility in the preclinical studies. To address this, we have established the IMproving Preclinical Assessment of Cardioprotective Therapies (IMPACT) small animal multisite acute myocardial infarction (AMI) network, with centralized randomization and blinded core laboratory IS analysis, and have validated the network using ischemic preconditioning (IPC). Eight sites from the COST Innovators Grant (IG16225) network participated in the IMPACT AMI study. Mice and rats were randomly allocated into Sham, Control, or IPC groups. The IRI group underwent 45 min (mice) or 30 min (rats) of left coronary artery occlusion followed by 24 h reperfusion. IPC comprised three cycles of 5 min occlusion/reperfusion before IRI. IS was determined by a blinded core lab. The majority of site showed significant cardioprotection with IPC. In pooled mouse data, IPC (N = 42) reduced IS/AAR by 35% compared to control (N = 48) (30 ± 16% versus 46 ± 13%; p < 0.005), and in rat data, IPC (N = 36) reduced IS/AAR by 29% when compared to control (N = 39) (32 ± 19% versus 45 ± 14%; p < 0.01). The IMPACT multisite mouse and rat AMI networks, with centralized randomization and blinded core IS analysis, were established to improve the reproducibility of cardioprotective interventions in preclinical studies and to facilitate the translation of these therapies for patient benefit.
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Affiliation(s)
- Sauri Hernandez-Resendiz
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, 8 College Road, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Reinis Vilskersts
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
- Department of Pharmaceutical Chemistry, Riga Stradins University, Riga, Latvia
| | - David Aluja
- Vall d'hebron Institut de Recerca (VHIR), Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Centro de Investigación Biomédica en Red Cardiovascular (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Péter Bencsik
- Department of Pharmacology and Pharmacotherapy, Albert-Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Maija Dambrova
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
- Department of Pharmaceutical Chemistry, Riga Stradins University, Riga, Latvia
| | - Panagiotis Efentakis
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Fei Gao
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Centre for Quantitative Medicine (CQM), Duke-NUS Medical School, Singapore, Singapore
| | - Zoltán Giricz
- Pharmahungary Group, Szeged, Hungary
- MTA-se System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad Tér 4, Budapest, 1089, Hungary
| | - Javier Inserte
- Vall d'hebron Institut de Recerca (VHIR), Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Centro de Investigación Biomédica en Red Cardiovascular (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Roisin Kelly-Laubscher
- Department of Pharmacology and Therapeutics, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Attila Kiss
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Wien, Austria
| | - Thomas Krieg
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Brenda R Kwak
- Department of Pathology and Immunology, and Geneva Center for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sandrine Lecour
- Cape Heart Institute, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Gary Lopaschuk
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada
| | - Michał Mączewski
- Department of Clinical Physiology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Michał Waszkiewicz
- Department of Clinical Physiology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Marta Oknińska
- Department of Clinical Physiology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Pasquale Pagliaro
- Clinical and Biological Science Department, University of Turin, Turin, Italy
| | - Bruno Podesser
- Ludwig Boltzmann Institute for Cardiovascular Research at Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Wien, Austria
| | - Hiran A Prag
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Marisol Ruiz-Meana
- Vall d'hebron Institut de Recerca (VHIR), Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Centro de Investigación Biomédica en Red Cardiovascular (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Tamara Szabados
- Department of Pharmacology and Pharmacotherapy, Albert-Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Coert J Zuurbier
- Amsterdam UMC, Location AMC, Department of Anaesthesiology, Laboratory of Experimental Intensive Care and Anaesthesiology (L.E.I.C.A.), Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Péter Ferdinandy
- MTA-se System Pharmacology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Nagyvárad Tér 4, Budapest, 1089, Hungary.
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, 8 College Road, Singapore, Singapore.
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore.
- Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore.
- The Hatter Cardiovascular Institute, University College London, London, UK.
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Khodir SA, Sweed E, Motawea SM, Al-Gholam MA, Elnaidany SS, Dayer MZS, Ameen O. Diacerein and myo-inositol alleviate letrozole-induced PCOS via modulation of HMGB1, SIRT1, and NF-kB: A comparative study. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2025; 398:4179-4197. [PMID: 39432066 PMCID: PMC11978706 DOI: 10.1007/s00210-024-03497-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 09/26/2024] [Indexed: 10/22/2024]
Abstract
Polycystic ovary syndrome (PCOS) is the most prevalent cause of anovulatory infertility in women. Myo-inositol supplementation has displayed effectiveness in curing PCOS patients. Diacerein, an anti-inflammatory medication, has not been extensively studied in the context of reproductive disorders. This study aimed to compare the role of myo-inositol and diacerein in PCOS and the probable mechanisms mediating their actions. Forty adult female rats were divided equally into the following: control, PCOS, PCOS+Myo-inositol, and PCOS+Diacerein groups. Rats were subjected to arterial blood pressure (ABP), electromyography (EMG), and uterine reactivity measurements. Blood samples were collected for measuring hormonal assays, glycemic state, lipid profile, oxidative stress, and inflammatory markers. Ovaries and uteri were extracted for histological examination, including hematoxylin and eosin staining, Masson's trichrome staining, immunohistochemistry, and rt-PCR analysis of ovarian tissues. PCOS was associated with significant increases in ABP, uterine frequency and amplitude of contraction, luteinizing hormone, testosterone, lipid, glycemic and inflammatory markers, malondialdehyde, high-mobility group box 1 (HMGB1), nuclear factor kappa (NF-kB), ovarian fibrosis, and endometrial thickening. In contrast, there was a significant reduction in follicular stimulating hormone, reduced glutathione, and Sirtuin 1 (SIRT1) when compared with control group. Both myo-inositol and diacerein counteract PCOS changes; but diacerein's effects were superior to myo-inositol's for all parameters, except for lipid and glycemic markers. Diacerein possessed anti-inflammatory properties and showed significant efficacy in mitigating the endocrinal, metabolic, and ovarian structural alterations linked to PCOS. Its beneficial actions likely stem from reducing oxidative stress, dyslipidemia, and hyperglycemia, potentially through the modulation of HMGB1, SIRT1, and NF-kB pathways.
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Affiliation(s)
- Suzan A Khodir
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt
- Medical Physiology, Menoufia National University, Menoufia, Egypt
| | - Eman Sweed
- Clinical Pharmacology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt.
- Quality Assurance Unit, Menoufia National University, Menoufia, Egypt.
| | - Shaimaa Mohamed Motawea
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt
| | - Marwa A Al-Gholam
- Human Anatomy and Embryology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt
| | - Sherin Sobhy Elnaidany
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt
| | | | - Omnia Ameen
- Medical Physiology Department, Faculty of Medicine, Menoufia University, Menoufia, 32511, Egypt
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Abdelwahed MHAE, Badreldin MH, Ibrahim IH, Zittoon RF, Galhom RA, Mohammed SS, Ashry YM. The potential of bone marrow derived mesenchymal stem cells in treating cisplatin induced sensorineural hearing loss in a guinea pig animal model. Tissue Cell 2025; 93:102703. [PMID: 39756116 DOI: 10.1016/j.tice.2024.102703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2024] [Revised: 12/05/2024] [Accepted: 12/21/2024] [Indexed: 01/07/2025]
Abstract
BACKGROUND Sensorineural hearing loss (SNHL) is the most common sensory deficit worldwide. Current solutions for SNHL, including hearing aids, cochlear implants, and hearing assistive devices, do not provide consistent results and fail to address the underlying pathology of hair cell and ganglion cell damage. Stem cell therapy is a cornerstone in regenerative medicine. It provides new hope to treat SNHL by replacing/regenerating damaged hair cells and ganglion cells. Mesenchymal stem cells are an interesting choice in stem cell therapy. AIM OF THE WORK Evaluation of bone marrow derived mesenchymal stem cell (BM-MSC) transplantation to improve SNHL management. METHODS An experimental study was conducted using 40 recipient guinea pigs, randomly divided into four groups, along with 4 donor guinea pigs for bone marrow harvesting to isolate BM-MSC. Group I (12 animals) served as the control, receiving neither ototoxic drugs nor stem cell treatment. Group II (12 animals) received intraperitoneal cisplatin (1.5 mg/kg/day for 8 days) to induce sensorineural hearing loss, but no stem cell treatment. Group III (12 animals) received IP cisplatin to induce SNHL, followed by BM-MSC transplantation via round window injection one week later. Groups I, II, and III were euthanized 5 weeks after the last cisplatin injection, and their cochleae were examined using light microscopy, scanning electron microscopy, and fluorescent light microscopy to assess the effect of stem cell transplantation on the recovery of neurosensory tissue in the cochlea after cisplatin treatment. Group IV (4 animals) received IP cisplatin to induce SNHL, followed by transplantation of fluorescein-labeled BM-MSC (FLBM-MSC) via round window injection one week later and were euthanized after one week to study stem cell migration and homing. RESULTS Light Microscopy: Group I exhibited a normal structure in the organ of Corti, spiral ganglion, and stria vascularis. In contrast, Group II demonstrated degeneration in these areas. Group III showed a preserved structure in the organ of Corti, spiral ganglion, and stria vascularis, with statistically significant differences compared to Group II (p < .05). Scanning Electron Microscopy: Group I displayed normal ultrastructure of the organ of Corti, while Group II showed a loss of outer hair cells. Group III demonstrated preserved ultrastructure of the organ of Corti. Fluorescent Light Microscopy: In Group IV, transplanted cells were observed to home into the cochlear lateral wall, organ of Corti, and spiral ganglion. CONCLUSION The study showed that BM-MSCs, delivered via round window injection, can migrate to cochlear regions and protect key structures after cisplatin-induced SNHL in guinea pigs, suggesting their potential as a treatment for SNHL.
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Affiliation(s)
| | | | | | | | - Rania A Galhom
- Human Anatomy and Embryology, Faculty of Medicine, Suez Canal University, Tissue culture unit, Center of Excellence of Molecular and Cellular Medicine (CEMCM), Suez Canal University, Assistant Professor of Human Anatomy and Embryology, Faculty of Medicine, Galala University, Egypt.
| | - Sally S Mohammed
- Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Yehia Mohamed Ashry
- ENT Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
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Li Y, Liao N, Wang R, Pang L, Fu H, Li S, Zheng W, Li Y. Sustained Protraction Increases Lengthening of the Mandibular Condylar Process Whilst Changes Its Growth Direction in a Rat Model. Orthod Craniofac Res 2025; 28:279-288. [PMID: 39508416 DOI: 10.1111/ocr.12869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 09/28/2024] [Accepted: 10/15/2024] [Indexed: 11/15/2024]
Abstract
OBJECTIVE In Class II elastics treatment, the mandible is subject to sustained protraction. The study aimed to investigate the morphological and histological changes resulting from sustained mandibular protraction, through establishment of a novel model in rat. MATERIALS AND METHODS Forty-eight 4-week-old male Sprague-Dawley rats were randomly divided into three groups, including the 50 and 100 cN protraction groups, and the control. In the two protraction groups, NiTi coil springs were fixed between the metal bands on the maxillary incisors and mandibular molars to pull the mandible forward. CBCT scans were taken immediately before (T0), 2 weeks (T1) and 4 weeks (T2) after the traction. Histological and immunohistochemical analyses were performed at T1 and T2. RESULTS Increase of the condylar process length and angular process length were significantly larger in the two protraction groups than that in the control; however, the condylar process angle (∠CPA) was significantly reduced by the protraction at T2, leading to decreased condylar height. The protraction decreased the condylar cartilage thickness at T1, which recovered to the control level at T2, with no significant changes detected in the expression of SRY-related high mobility group-box gene 9 (SOX9) and type II collagen (COL II), two chondrogenic markers. CONCLUSION The established rat model is manoeuvrable and reliable, which exerts sustained and measurable mandibular protraction. The sustained protraction increases the lengthening of the mandibular condylar process, but alters its growth direction by causing it to turn downwards.
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Affiliation(s)
- Yuan Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Naiqi Liao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ruyi Wang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Lingli Pang
- Department of Stomatology, Mianyang Central Hospital, Mianyang, China
| | - Hengyi Fu
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Shijia Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Wei Zheng
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yu Li
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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50
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Britto-Júnior J, Lima AT, Oliveira DL, Mariano FV, de Souza VB, Schenka AA, Peterson LW, Slot MS, Fjord R, Wang T, Antunes E, De Nucci G. 6-Cyanodopamine as an endogenous modulator of heart chronotropism and inotropism. Life Sci 2025; 366-367:123504. [PMID: 39983814 DOI: 10.1016/j.lfs.2025.123504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2024] [Revised: 01/22/2025] [Accepted: 02/18/2025] [Indexed: 02/23/2025]
Abstract
Rat isolated atria and ventricles release endothelium-derived 6-nitrodopamine, which induces potent positive chronotropic and inotropic responses. 6-Cyanodopamine is released from rabbit isolated atria and ventricles; however, it is not known whether this novel catecholamine has any action on the isolated heart. Therefore, it was investigated whether rat isolated ventricles release 6-cyanodopamine and its action on the rat isolated heart. Basal release of 6-cyanodopamine was assessed by LC-MS/MS method. Tyrosine hydroxylase expression was measured by both immunohistochemistry and fluorescence in situ hybridization (FISH). Chronotropic and inotropic effects were evaluated in isolated atria and Langendorff's preparation, respectively. Rat isolated ventricles presented basal release of 6-cyanodopamine, which was unaffected by pre-treatment with the voltage-gated sodium channel blocker tetrodotoxin. Immunohistochemistry and FISH assays identified tyrosine hydroxylase expression in both endothelium and cardiomyocytes. 6-Cyanodopamine at 10 and 100 pM significantly increased the atrial rate, which was maintained even at 30 min after washing the preparation. In the Langendorff's preparation, 1-min infusion of 6-cyanodopamine (10 and 100 pM) significantly increased heart frequency, left ventricular developed pressure (LVDP), and maximal rate of rise of the left ventricular pressure (dP/dtmax). Bolus injection of noradrenaline at 1 pmol had no effect on any of these parameters; however, in the presence of 6-cyanodopamine (0.01 pM), noradrenaline (1 pmol) significantly increased heart frequency, LVDP, and dP/dt(max). The results indicate that 6-cyanodopamine is a potent endogenous catecholamine mediating both chronotropism and inotropism in the rat isolated heart. 6-Cyanodopamine may have potential therapeutic effect in heart failure and may be useful as a biomarker of cardio-renal diseases.
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Affiliation(s)
- José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
| | - Antonio Tiago Lima
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Denis Lima Oliveira
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Fernanda V Mariano
- Department of Pathology, Faculty of Medical Science, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Valéria Barbosa de Souza
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - André Almeida Schenka
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | | | | | - Rebecca Fjord
- Department of Biology, Aarhus University, Aarhus, Denmark
| | - Tobias Wang
- Department of Biology, Aarhus University, Aarhus, Denmark
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil; Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (ICB-USP), São Paulo, Brazil
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