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Kong C, Guo Z, Liu F, Tang N, Wang M, Yang D, Li C, Yang Z, Ma Y, Wang P, Tang Q. Triad3A-Mediated K48-Linked ubiquitination and degradation of TLR9 impairs mitochondrial bioenergetics and exacerbates diabetic cardiomyopathy. J Adv Res 2024; 61:65-81. [PMID: 37625569 PMCID: PMC11258663 DOI: 10.1016/j.jare.2023.08.015] [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: 04/23/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
INTRODUCTION Targeted protein degradation represents a promising therapeutic approach, while diabetic cardiomyopathy (DCM) arises as a consequence of aberrant insulin secretion and impaired glucose and lipid metabolism in the heart.. OBJECTIVES Considering that the Toll-like receptor 9 (TLR9) signaling pathway plays a pivotal role in regulating energy metabolism, safeguarding cardiomyocytes, and influencing glucose uptake, the primary objective of this study was to investigate the impact of TLR9 on diabetic cardiomyopathy (DCM) and elucidate its underlying mechanism. METHODS Mouse model of DCM was established using intraperitoneal injection of STZ, and mice were transfected with adeno-associated virus serotype 9-TLR9 (AAV9-TLR9) to assess the role of TLR9 in DCM. To explore the mechanism of TLR9 in regulating DCM disease progression, we conducted interactome analysis and employed multiple molecular approaches. RESULTS Our study revealed a significant correlation between TLR9 expression and mouse DCM. TLR9 overexpression markedly mitigated cardiac dysfunction, myocardial fibrosis, oxidative stress, and apoptosis in DCM, while inflammation levels remained relatively unaffected. Mechanistically, TLR9 overexpression positively modulated mitochondrial bioenergetics and activated the AMPK-PGC1a signaling pathway. Furthermore, we identified Triad3A as an interacting protein that facilitated TLR9's proteasomal degradation through K48-linked ubiquitination. Inhibiting Triad3A expression improved cardiac function and pathological changes in DCM by enhancing TLR9 activity. CONCLUSIONS The findings of this study highlight the critical role of TLR9 in maintaining cardiac function and mitigating pathological alterations in diabetic cardiomyopathy. Triad3A-mediated regulation of TLR9 expression and function has significant implications for understanding the pathogenesis of DCM. Targeting TLR9 and its interactions with Triad3A may hold promise for the development of novel therapeutic strategies for diabetic cardiomyopathy. Further research is warranted to fully explore the therapeutic potential of TLR9 modulation in the context of cardiovascular diseases.
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Affiliation(s)
- Chunyan Kong
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Zhen Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Fangyuan Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Nan Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Mingyu Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Chenfei Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Yulan Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Pan Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China
| | - Qizhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, PR China.
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Hou Y, Fan F, Xie N, Zhang Y, Wang X, Meng X. Rhodiola crenulata alleviates hypobaric hypoxia-induced brain injury by maintaining BBB integrity and balancing energy metabolism dysfunction. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155529. [PMID: 38503156 DOI: 10.1016/j.phymed.2024.155529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/25/2024] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND/PURPOSE Rhodiola crenulata (Hook. f. et Thoms.) H. Ohba (R. crenulate), a famous and characteristic Tibetan medicine, has been demonstrated to exert an outstanding brain protection role in the treatment of high-altitude hypoxia disease. However, the metabolic effects of R. crenulate on high-altitude hypoxic brain injury (HHBI) are still incompletely understood. Herein, the anti-hypoxic effect and associated mechanisms of R. crenulate were explored through both in vivo and in vitro experiments. STUDY DESIGN/METHODS The mice model of HHBI was established using an animal hypobaric and hypoxic chamber. R. crenulate extract (RCE, 0.5, 1.0 and 2.0 g/kg) and salidroside (Sal, 25, 50 and 100 mg/kg) was given by gavage for 7 days. Pathological changes and neuronal apoptosis of mice hippocampus and cortex were evaluated using H&E and TUNEL staining, respectively. The effects of RCE and Sal on the permeability of blood brain barrier (BBB) were detected by Evans blue staining and NIR-II fluorescence imaging. Meanwhile, the ultrastructural BBB and cerebrovascular damages were observed using a transmission electron microscope (TEM). The levels of tight junction proteins Claudin-1, ZO-1 and occludin were detected by immunofluorescence. Additionally, the metabolites in mice serum and brain were determined using UHPLC-MS and MALDI-MSI analysis. The cell viability of Sal on hypoxic HT22 cells induced by CoCl2 was investigated by cell counting kit-8. The contents of LDH, MDA, SOD, GSH-PX and SDH were detected by using commercial biochemical kits. Meanwhile, intracellular ROS, Ca2+ and mitochondrial membrane potential were determined by corresponding specific labeled probes. The intracellular metabolites of HT22 cells were performed by the targeted metabolomics analysis of the Q300 kit. The cell apoptosis and necrosis were examined by YO-PRO-1/PI, Annexin V/PI and TUNEL staining. In addition, mitochondrial morphology was tested by Mito-tracker red with confocal microscopy and TEM. Real-time ATP production, oxygen consumption rate, and proton efflux rate were measured using a Seahorse analyzer. Subsequently, MCU, OPA1, p-Drp1ser616, p-AMPKα, p-AMPKβ and Sirt1 were determined by immunofluorescent and western blot analyses. RESULTS The results demonstrated that R. crenulate and Sal exert anti-hypoxic brain protection from inhibiting neuronal apoptosis, maintaining BBB integrity, increasing tight junction protein Claudin-1, ZO-1 and occludin and improving mitochondrial morphology and function. Mechanistically, R. crenulate and Sal alleviated HHBI by enhancing the tricarboxylic acid cycle to meet the demand of energy of brain. Additionally, experiments in vitro confirmed that Sal could ameliorate the apoptosis of HT22 cells, improve mitochondrial morphology and energy metabolism by enhancing mitochondrial respiration and glycolysis. Meanwhile, Sal-mediated MCU inhibited the activation of Drp1 and enhanced the expression of OPA1 to maintain mitochondrial homeostasis, as well as activation of AMPK and Sirt1 to enhance ATP production. CONCLUSION Collectively, the findings suggested that RCE and Sal may afford a protective intervention in HHBI through maintaining BBB integrity and improving energy metabolism via balancing MCU-mediated mitochondrial homeostasis by activating the AMPK/Sirt1 signaling pathway.
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Affiliation(s)
- Ya Hou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Fuhan Fan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Na Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Xiaobo Wang
- Innovative Institute of Chinese Medicine and Pharmacy/Academy for Interdiscipline, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Meishan Hospital of Chengdu University of Traditional Chinese Medicine, Meishan, 620010, China.
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China; Innovative Institute of Chinese Medicine and Pharmacy/Academy for Interdiscipline, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Meishan Hospital of Chengdu University of Traditional Chinese Medicine, Meishan, 620010, China.
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Shadab A, Abbasi-Kolli M, Saharkhiz M, Ahadi SH, Shokouhi B, Nahand JS. The interplay between mitochondrial dysfunction and NLRP3 inflammasome in multiple sclerosis: Therapeutic implications and animal model studies. Biomed Pharmacother 2024; 175:116673. [PMID: 38713947 DOI: 10.1016/j.biopha.2024.116673] [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: 01/27/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/09/2024] Open
Abstract
Multiple sclerosis (MS) is a complex autoimmune disorder that impacts the central nervous system (CNS), resulting in inflammation, demyelination, and neurodegeneration. The NOD-like receptor (NLR) family pyrin domain-containing 3 (NLRP3) inflammasome, a multiprotein complex of the innate immune system, serves an essential role in the pathogenesis of MS by regulating the production of pro-inflammatory cytokines (IL-1β & IL-18) and the induction of pyroptotic cell death. Mitochondrial dysfunction is one of the main potential factors that can trigger NLRP3 inflammasome activation and lead to inflammation and axonal damage in MS. This highlights the importance of understanding how mitochondrial dynamics modulate NLRP3 inflammasome activity and contribute to the inflammatory and neurodegenerative features of MS. The lack of a comprehensive understanding of the pathogenesis of MS and the urge for the introduction of new therapeutic strategies led us to review the therapeutic potential of targeting the interplay between mitochondrial dysfunction and the NLRP3 inflammasome in MS. This paper also evaluates the natural and synthetic compounds that can improve mitochondrial function and/or inhibit the NLRP3 inflammasome, thereby providing neuroprotection. Moreover, it summarizes the evidence from animal models of MS that demonstrate the beneficial effects of these compounds on reducing inflammation, demyelination, and neurodegeneration. Finally, this review advocates for a deeper investigation into the molecular crosstalk between mitochondrial dynamics and the NLRP3 inflammasome as a means to refine therapeutic targets for MS.
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Affiliation(s)
- Alireza Shadab
- Deputy of Health, Iran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohammad Abbasi-Kolli
- Deputy of Health, Iran University of Medical Sciences, Tehran, Iran; Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mansoore Saharkhiz
- Department of immunology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran; Cellular and molecular research center, Birjand University of medical sciences, Birjand, Iran
| | | | - Behrooz Shokouhi
- Pathology Department, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Javid Sadri Nahand
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Zhang Y, Luo C, Huang P, Cheng Y, Ma Y, Gao J, Ding H. Diosmetin Ameliorates HFD-induced Cognitive Impairments via Inhibiting Metabolic Disorders, Mitochondrial Dysfunction and Neuroinflammation in Male SD Rats. Mol Neurobiol 2024:10.1007/s12035-024-04083-x. [PMID: 38460078 DOI: 10.1007/s12035-024-04083-x] [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: 11/25/2023] [Accepted: 02/28/2024] [Indexed: 03/11/2024]
Abstract
Currently, accumulating evidence has indicated that overnutrition-associated obesity may result in not only metabolic dysregulations, but also cognitive impairments. This study aimed to investigate the protective effects of Diosmetin, a bioflavonoid compound with multiple biological functions, on cognitive deficits induced by a high fat diet (HFD) and the potential mechanisms. In the present study, oral administration of Diosmetin (25, 50 and 100 mg/kg) for 12 weeks significantly reduced the body weight, restored glucose tolerance and normalized lipid profiles in the serum and liver in HFD-induced obese rats. Diosmetin also significantly ameliorated depression-like behaviors and impaired spatial memory in multiple behavioral tests, including the open field test, elevated plus-maze and Morris water maze, which was in accordance with the decreased pathological changes and neuronal damage in different regions of hippocampus as suggested by H&E and Nissl staining. Notably, our results also indicated that Diosmetin could significantly improve mitochondrial dysfunction induced by HFD through upregulating genes involved in mitochondrial biogenesis and dynamics, increasing mitochondrial ATP levels and inhibiting oxidative stress. Moreover, the levels of key enzymes involved in the TCA cycle were also significantly increased upon Diosmetin treatment. Meanwhile, Diosmetin inhibited HFD-induced microglial overactivation and down-regulated inflammatory cytokines both in the serum and hippocampus. In conclusion, these results indicated that Diosmetin might be a novel nutritional intervention to prevent the occurrence and development of obesity-associated cognitive dysfunction via metabolic regulation and anti-inflammation.
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Affiliation(s)
- Yiyuan Zhang
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Chunyun Luo
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Puxin Huang
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Yahong Cheng
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Yufang Ma
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Jiefang Gao
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China
| | - Hong Ding
- Department of Pharmaceutical Science, Wuhan University, 430000, Wuhan, China.
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Qi B, Li T, Luo H, Hu L, Feng R, Wang D, Peng T, Ren G, Guo D, Liu M, Wang Q, Zhang M, Li Y. Reticulon 3 deficiency ameliorates post-myocardial infarction heart failure by alleviating mitochondrial dysfunction and inflammation. MedComm (Beijing) 2024; 5:e503. [PMID: 38420163 PMCID: PMC10901281 DOI: 10.1002/mco2.503] [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: 08/22/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Multiple molecular mechanisms are involved in the development of heart failure (HF) after myocardial infarction (MI). However, interventions targeting these pathological processes alone remain clinically ineffective. Therefore, it is essential to identify new therapeutic targets for alleviating cardiac dysfunction after MI. Here, gain- and loss-of-function approaches were used to investigate the role of reticulon 3 (RTN3) in HF after MI. We found that RTN3 was elevated in the myocardium of patients with HF and mice with MI. Cardiomyocyte-specific RTN3 overexpression decreased systolic function in mice under physiological conditions and exacerbated the development of HF induced by MI. Conversely, RTN3 knockout alleviated cardiac dysfunction after MI. Mechanistically, RTN3 bound and mediated heat shock protein beta-1 (HSPB1) translocation from the cytosol to the endoplasmic reticulum. The reduction of cytosolic HSPB1 was responsible for the elevation of TLR4, which impaired mitochondrial function and promoted inflammation through toll-like receptor 4 (TLR4)/peroxisome proliferator-activated receptor gamma coactivator-1 alpha(PGC-1α) and TLR4/Nuclear factor-kappa B(NFκB) pathways, respectively. Furthermore, the HSPB1 inhibitor reversed the protective effect of RTN3 knockout on MI. Additionally, elevated plasma RTN3 level is associated with decreased cardiac function in patients with acute MI. This study identified RTN3 as a critical driver of HF after MI and suggests targeting RTN3 as a promising therapeutic strategy for MI and related cardiovascular diseases.
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Affiliation(s)
- Bingchao Qi
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Tiantian Li
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Haixia Luo
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Lang Hu
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Renqian Feng
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Di Wang
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Tingwei Peng
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Gaotong Ren
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Dong Guo
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Mingchuan Liu
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Qiuhe Wang
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Mingming Zhang
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
| | - Yan Li
- Department of CardiologyTangdu HospitalAir Force Medical UniversityXi'an ShaanxiChina
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Almalki WH. Unraveling the role of Xist RNA in cardiovascular pathogenesis. Pathol Res Pract 2024; 253:154944. [PMID: 38006839 DOI: 10.1016/j.prp.2023.154944] [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: 10/17/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/27/2023]
Abstract
Understanding the molecular pathways behind cardiovascular illnesses is crucial due to the enormous worldwide health burden they impose. New insights into the role played by Xist (X-inactive specific transcript) RNA in the onset and progression of cardiovascular diseases have emerged from recent studies. Since its discovery, Xist RNA has been known for its role in X chromosome inactivation during embryogenesis; however, new data suggest that its function extends well beyond the control of sex chromosomes. The regulatory roles of Xist RNA are extensive, encompassing epigenetic changes, gene expression, cellular identity, and sex chromosomal inactivation. There is potential for the involvement of this complex regulatory web in a wide range of illnesses, including cardiovascular problems. Atherosclerosis, hypertrophy, and cardiac fibrosis are all conditions linked to dysregulation of Xist RNA expression. Alterations in DNA methylation and histones are two examples of epigenetic changes that Xist RNA orchestrates, leading to modifications in gene expression patterns in different cardiovascular cells. Additionally, Xist RNA has been shown to contribute to the development of cardiovascular illnesses by modulating endothelial dysfunction, inflammation, and oxidative stress responses. New treatment approaches may become feasible with a thorough understanding of the complex function of Xist RNA in cardiovascular diseases. By focusing on Xist RNA and the regulatory network with which it interacts, we may be able to slow the progression of atherosclerosis, cardiac hypertrophy, and fibrosis, thereby opening novel therapeutic options for cardiovascular diseases amenable to precision medicine. This review summarizes the current state of knowledge concerning the impact of Xist RNA in cardiovascular disorders.
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Affiliation(s)
- Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia.
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Xie N, Mei S, Dai C, Chen W. HDAC1-Mediated Downregulation of NEU1 Exacerbates the Aggressiveness of Cervical Cancer. Crit Rev Eukaryot Gene Expr 2024; 34:45-54. [PMID: 38505872 DOI: 10.1615/critreveukaryotgeneexpr.2023051396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
HDAC1 functions as an oncogene in multi-type cancers. This study aimed to investigate the roles of histone deacetylase 1 (HDAC1) in cervical cancer (CC). mRNA expression was determined using reverse transcription quantitative polymerase chain reaction. The protein-protein complexes was analyzed using co-immunoprecipitation assay. The binding sites between NRF2 and NEU1 were confirmed by chromatin immunoprecipitation assay. Cell viability was detected by CCK-8. Cell proliferation was measured using CCK-8 and colony formation assays. Cell migrative and invasive ability were determined using transwell assay. We found that HDAC1 was upregulated in CC patients and cells. Trichostatin A (TSA) treatment decreased the number of colonies and migrated and invaded cells. Moreover, HDAC1 interacted with NRF2 to downregulate NEU1 expression. NEU1 knockdown attenuated the effects of TSA and enhanced the aggressiveness of CC cells. In conclusion, HDAC1 functions as an oncogene in CC. Targeting HDAC1 may be an alternative strategy for CC.
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Affiliation(s)
- Nanzi Xie
- Department of Pathology, People's Hospital of Anshun City Guizhou Province, Anshun 561000, Guizhou, China
| | - Sisi Mei
- Department of Pathology, People's Hospital of Anshun City Guizhou Province, Anshun 561000, Guizhou, China
| | - Changlan Dai
- Department of Pathology, People's Hospital of Anshun City Guizhou Province, Anshun 561000, Guizhou, China
| | - Wei Chen
- People's Hospital of Anshun City Guizhou Province
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Fan D, Jiang WL, Jin ZL, Cao JL, Li Y, He T, Zhang W, Peng L, Liu HX, Wu XY, Chen M, Fan YZ, He B, Yu WX, Wang HR, Hu XR, Lu ZB. Leucine zipper protein 1 attenuates pressure overload-induced cardiac hypertrophy through inhibiting Stat3 signaling. J Adv Res 2023:S2090-1232(23)00299-0. [PMID: 37806546 DOI: 10.1016/j.jare.2023.10.007] [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: 04/11/2023] [Revised: 09/30/2023] [Accepted: 10/06/2023] [Indexed: 10/10/2023] Open
Abstract
INTRODUCTION Cardiac hypertrophy is an important contributor of heart failure, and the mechanisms remain unclear. Leucine zipper protein 1 (LUZP1) is essential for the development and function of cardiovascular system; however, its role in cardiac hypertrophy is elusive. OBJECTIVES This study aims to investigate the molecular basis of LUZP1 in cardiac hypertrophy and to provide a rational therapeutic approach. METHODS Cardiac-specific Luzp1 knockout (cKO) and transgenic mice were established, and transverse aortic constriction (TAC) was used to induce pressure overload-induced cardiac hypertrophy. The possible molecular basis of LUZP1 in regulating cardiac hypertrophy was determined by transcriptome analysis. Neonatal rat cardiomyocytes were cultured to elucidate the role and mechanism of LUZP1 in vitro. RESULTS LUZP1 expression was progressively increased in hypertrophic hearts after TAC surgery. Gain- and loss-of-function methods revealed that cardiac-specific LUZP1 deficiency aggravated, while cardiac-specific LUZP1 overexpression attenuated pressure overload-elicited hypertrophic growth and cardiac dysfunction in vivo and in vitro. Mechanistically, the transcriptome data identified Stat3 pathway as a key downstream target of LUZP1 in regulating pathological cardiac hypertrophy. Cardiac-specific Stat3 deletion abolished the pro-hypertrophic role in LUZP1 cKO mice after TAC surgery. Further findings suggested that LUZP1 elevated the expression of Src homology region 2 domain-containing phosphatase 1 (SHP1) to inactivate Stat3 pathway, and SHP1 silence blocked the anti-hypertrophic effects of LUZP1 in vivo and in vitro. CONCLUSION We demonstrate that LUZP1 attenuates pressure overload-induced cardiac hypertrophy through inhibiting Stat3 signaling, and targeting LUZP1 may develop novel approaches to treat pathological cardiac hypertrophy.
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Affiliation(s)
- Di Fan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Wan-Li Jiang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhi-Li Jin
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Jian-Lei Cao
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Yi Li
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Tao He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Wei Zhang
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Li Peng
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Hui-Xia Liu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Xiao-Yan Wu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Ming Chen
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Yong-Zhen Fan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Bo He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Wen-Xi Yu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Hai-Rong Wang
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China
| | - Xiao-Rong Hu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China.
| | - Zhi-Bing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan 430062, China.
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Varghese B, Chianese U, Capasso L, Sian V, Bontempo P, Conte M, Benedetti R, Altucci L, Carafa V, Nebbioso A. SIRT1 activation promotes energy homeostasis and reprograms liver cancer metabolism. J Transl Med 2023; 21:627. [PMID: 37715252 PMCID: PMC10504761 DOI: 10.1186/s12967-023-04440-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/14/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND Cancer cells are characterized by uncontrolled cell proliferation and impaired bioenergetics. Sirtuins are a family of highly conserved enzymes that play a fundamental role in energy metabolism regulation. SIRT1, in particular, drives many physiological stress responses and metabolic pathways following nutrient deprivation. We previously showed that SIRT1 activation using SCIC2.1 was able to attenuate genotoxic response and senescence. Here, we report that in hepatocellular carcinoma (HCC) cells under glucose-deprived conditions, SCIC2.1 treatment induced overexpression of SIRT1, SIRT3, and SIRT6, modulating metabolic response. METHODS Flow cytometry was used to analyze the cell cycle. The MTT assay and xCELLigence system were used to measure cell viability and proliferation. In vitro enzymatic assays were carried out as directed by the manufacturer, and the absorbance was measured with an automated Infinite M1000 reader. Western blotting and immunoprecipitation were used to evaluate the expression of various proteins described in this study. The relative expression of genes was studied using real-time PCR. We employed a Seahorse XF24 Analyzer to determine the metabolic state of the cells. Oil Red O staining was used to measure lipid accumulation. RESULTS SCIC2.1 significantly promoted mitochondrial biogenesis via the AMPK-p53-PGC1α pathway and enhanced mitochondrial ATP production under glucose deprivation. SIRT1 inhibition by Ex-527 further supported our hypothesis that metabolic effects are dependent on SIRT1 activation. Interestingly, SCIC2.1 reprogrammed glucose metabolism and fatty acid oxidation for bioenergetic circuits by repressing de novo lipogenesis. In addition, SCIC2.1-mediated SIRT1 activation strongly modulated antioxidant response through SIRT3 activation, and p53-dependent stress response via indirect recruitment of SIRT6. CONCLUSION Our results show that SCIC2.1 is able to promote energy homeostasis, attenuating metabolic stress under glucose deprivation via activation of SIRT1. These findings shed light on the metabolic action of SIRT1 in the pathogenesis of HCC and may help determine future therapies for this and, possibly, other metabolic diseases.
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Affiliation(s)
- Benluvankar Varghese
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Ugo Chianese
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Lucia Capasso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Veronica Sian
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Paola Bontempo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Mariarosaria Conte
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Rosaria Benedetti
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy.
- Biogem, Molecular Biology and Genetics Research Institute, Via Camporeale, 83031, Ariano Irpino, Italy.
- IEOS CNR, Via Sergio Pansini 5, 80131, Naples, Italy.
| | - Vincenzo Carafa
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy
- Biogem, Molecular Biology and Genetics Research Institute, Via Camporeale, 83031, Ariano Irpino, Italy
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico De Crecchio 7, 80138, Naples, Italy.
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Liu N, Lyu X, Zhang X, Zhang F, Chen Y, Li G. Astaxanthin attenuates cognitive deficits in Alzheimer's disease models by reducing oxidative stress via the SIRT1/PGC-1α signaling pathway. Cell Biosci 2023; 13:173. [PMID: 37710272 PMCID: PMC10503143 DOI: 10.1186/s13578-023-01129-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023] Open
Abstract
OBJECTIVE Oxidative stress plays a pivotal role in neurodegenerative diseases. Astaxanthin (AST) can play a neuroprotective role owing to its long-chain conjugated unsaturated double bond, which imparts potent antioxidant, anti-neuroinflammatory, and anti-apoptotic properties. However, the biological mechanisms underlying these effects remain unknown. Therefore, this study aimed to investigate and validate the protective effect of AST on neuronal senescence and apoptosis caused by oxidative stress induced by Aβ25-35 peptide, with the goal of preventing the onset of cognitive dysfunction. METHODS Alzheimer's disease models comprising ICR mice and PC12 cells were established using Aβ25-35. The Morris water maze test was used to assess mouse behavior. Nissl staining revealed morphological changes in the mouse hippocampal neurons. To elucidate the mechanism of action of AST, ICR mice and PC12 cells were treated with the silent information regulator 1 (SIRT1) inhibitor nicotinamide (NAM). Additionally, immunofluorescence, western blotting, and reverse transcription polymerase chain reaction were used to evaluate changes in the expression of Bcl-2 and Bax in the mouse hippocampus, and SIRT1/PGC-1α signaling pathway proteins were detected. Moreover, the oxidative stress markers in ICR mice and PC12 cells were evaluated. Further, CCK-8 assays, Annexin V/PI double staining, and β-galactosidase activity assays were performed in PC12 cells to evaluate the anti-senescence and apoptotic effects of AST. RESULTS In vivo experiments showed that Aβ25-35 impaired cognitive function, promoted morphological changes in hippocampal neurons, decreased Bcl-2 expression, increased Bax expression, decreased superoxide dismutase and GSH-px levels, and increased reactive oxygen species and malondialdehyde levels. Conversely, AST alleviated the impact of Aβ25-35 in mice, with reversed outcomes. NAM administration reduced SIRT1 and PGC-1α expression in the hippocampus. This decrease was accompanied by cognitive dysfunction and hippocampal neuron atrophy, which were also evident in the mice. Additionally, in vitro experiments showed that Aβ25-35 could promote oxidative stress and induce the senescence and apoptosis of PC12 cells. Nonetheless, AST treatment counteracted this effect by inhibiting oxidative stress and altering the state of PC12 cells. Notably, the Aβ + NAM group exhibited the most significant rates of senescence and apoptosis in PC12 cells following NAM treatment. CONCLUSION AST can improve cellular senescence and apoptosis mediated by oxidative stress via the SIRT1/PGC-1α signaling pathway and plays a vital role in inhibiting neuronal senescence and apoptosis and enhancing cognitive ability.
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Affiliation(s)
- Ning Liu
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Xiaohong Lyu
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China.
| | - Xianglin Zhang
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Fan Zhang
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Yiming Chen
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Gang Li
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
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11
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Ge T, Shao Y, Bao X, Xu W, Lu C. Cellular senescence in liver diseases: From mechanisms to therapies. Int Immunopharmacol 2023; 121:110522. [PMID: 37385123 DOI: 10.1016/j.intimp.2023.110522] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 06/05/2023] [Accepted: 06/14/2023] [Indexed: 07/01/2023]
Abstract
Cellular senescence is an irreversible state of cell cycle arrest, characterized by a gradual decline in cell proliferation, differentiation, and biological functions. Cellular senescence is double-edged for that it can provoke organ repair and regeneration in physiological conditions but contribute to organ and tissue dysfunction and prime multiple chronic diseases in pathological conditions. The liver has a strong regenerative capacity, where cellular senescence and regeneration are closely involved. Herein, this review firstly introduces the morphological manifestations of senescent cells, the major regulators (p53, p21, and p16), and the core pathophysiologic mechanisms underlying senescence process, and then specifically generalizes the role and interventions of cellular senescence in multiple liver diseases, including alcoholic liver disease, nonalcoholic fatty liver disease, liver fibrosis, and hepatocellular carcinoma. In conclusion, this review focuses on interpreting the importance of cellular senescence in liver diseases and summarizes potential senescence-related regulatory targets, aiming to provide new insights for further researches on cellular senescence regulation and therapeutic developments for liver diseases.
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Affiliation(s)
- Ting Ge
- School of Pharmacy, Nantong University, Nantong, Jiangsu, China
| | - Yunyun Shao
- School of Pharmacy, Nantong University, Nantong, Jiangsu, China
| | - Xiaofeng Bao
- School of Pharmacy, Nantong University, Nantong, Jiangsu, China
| | - Wenxuan Xu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China.
| | - Chunfeng Lu
- School of Pharmacy, Nantong University, Nantong, Jiangsu, China.
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12
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Liu C, Cao Q, Chen Y, Chen X, Zhu Y, Zhang Z, Wei W. Rhein protects retinal Müller cells from high glucose-induced injury via activating the AMPK/Sirt1/PGC-1α pathway. J Recept Signal Transduct Res 2023:1-10. [PMID: 37330920 DOI: 10.1080/10799893.2023.2223319] [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: 07/27/2022] [Revised: 01/23/2023] [Accepted: 02/07/2023] [Indexed: 06/20/2023]
Abstract
Oxidative stress, inflammation and apoptosis are important pathogenic factors of diabetic retinopathy (DR). In the current study, we aimed to evaluate the potential role of Rhein, a natural anthraquinone compound found in rhubarb, in high glucose (HG)-induced Müller cells (MIO-M1). Cell Counting Kit‑8 assay, TUNEL assay, Western blot analysis, Reverse transcription quantitative polymerase chain reaction (RT-qPCR), and ELISA were conducted to assess the effects of Rhein on Müller cells. Additionally, the EX-527, an Sirt1 inhibitor, was used to study whether the effects of Rhein, on HG-induced Müller cells were mediated by activation of the Sirt1 signaling pathway. Our data showed that Rhein improved cell viability of HG-induced Müller cells. Rhein reduced the ROS and MDA production and increased the activities of SOD and CAT in Müller cells in response to HG stimulation. Rhein decreased the production of VEGF, IL-1β, IL-6 and TNF-α. Moreover, Rhein attenuated HG-induced apoptosis, evidenced by increase in Bcl-2 level and decreases in the Bax, caspase-3 expression. It was also found that EX-527 counteracted Rhein-mediated anti-inflammatory, antioxidant and anti-apoptosis effects on Müller cells. The protein levels of p-AMPK and PGC-1α were also upregulated by Rhein. In conclusion, these findings support that Rhein may ameliorate HG-induced inflammation, oxidative stress, apoptosis and protect against mitochondrial dysfunction by the activation of the AMPK/Sirt1/PGC-1α signaling pathway.
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Affiliation(s)
- Cong Liu
- Department of Ophthalmology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
- Department of Ophthalmology, Jinling Hospital, Nanjing University, School of Medicine, Nanjing, People's Republic of China
| | - Qian Cao
- Department of Ophthalmology, Jinling Hospital, Nanjing University, School of Medicine, Nanjing, People's Republic of China
| | - Yueqin Chen
- Department of Ophthalmology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Xi Chen
- Department of Ophthalmology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Yujie Zhu
- Department of Ophthalmology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Zhonghua Zhang
- Department of Anesthesiology, Jinling Hospital, Nanjing University, School of Medicine, Nanjing, People's Republic of China
| | - Wei Wei
- Department of Ophthalmology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
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13
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Fan D, Jin Z, Cao J, Li Y, He T, Zhang W, Peng L, Liu H, Wu X, Chen M, Fan Y, He B, Yu W, Wang H, Hu X, Lu Z. Leucine zipper protein 1 prevents doxorubicin-induced cardiotoxicity in mice. Redox Biol 2023; 64:102780. [PMID: 37354826 DOI: 10.1016/j.redox.2023.102780] [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: 04/14/2023] [Revised: 05/25/2023] [Accepted: 06/08/2023] [Indexed: 06/26/2023] Open
Abstract
OBJECTIVE Doxorubicin (DOX) is commonly used for chemotherapy; however, its clinical value is extremely dampened because of the fatal cardiotoxicity. Leucine zipper protein 1 (LUZP1) plays critical roles in cardiovascular development, and this study is designed for determining its function and mechanism in DOX-induced cardiotoxicity. METHODS Cardiac-specific Luzp1 knockout (cKO) and transgenic (cTG) mice received a single or repeated DOX injections to establish acute and chronic cardiotoxicity. Biomarkers of inflammation, oxidative damage and cell apoptosis were evaluated. Transcriptome and co-immunoprecipitation analysis were used to screen the underlying molecular pathways. Meanwhile, primary cardiomyocytes were applied to confirm the beneficial effects of LUZP1 in depth. RESULTS LUZP1 was upregulated in DOX-injured hearts and cardiomyocytes. Cardiac-specific LUZP1 deficiency aggravated, while cardiac-specific LUZP1 overexpression attenuated DOX-associated inflammation, oxidative damage, cell apoptosis and acute cardiac injury. Mechanistic studies revealed that LUZP1 ameliorated DOX-induced cardiotoxicity through activating 5'-AMP-activated protein kinase (AMPK) pathway, and AMPK deficiency abolished the cardioprotection of LUZP1. Further findings suggested that LUZP1 interacted with protein phosphatase 1 to activate AMPK pathway. Moreover, we determined that cardiac-specific LUZP1 overexpression could also attenuate DOX-associated chronic cardiac injury in mice. CONCLUSION LUZP1 attenuates DOX-induced inflammation, oxidative damage, cell apoptosis and ventricular impairment through regulating AMPK pathway, and gene therapy targeting LUZP1 may provide novel therapeutic approached to treat DOX-induced cardiotoxicity.
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Affiliation(s)
- Di Fan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Zhili Jin
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Jianlei Cao
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Yi Li
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Tao He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Wei Zhang
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Li Peng
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Huixia Liu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Xiaoyan Wu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Ming Chen
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Yongzhen Fan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Bo He
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Wenxi Yu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Hairong Wang
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China
| | - Xiaorong Hu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China.
| | - Zhibing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430062, China; Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430062, China.
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14
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Guo Z, Liu FY, Yang D, Wang MY, Li CF, Tang N, Ma SQ, An P, Yang Z, Tang QZ. Salidroside ameliorates pathological cardiac hypertrophy via TLR4-TAK1-dependent signaling. Phytother Res 2023; 37:1839-1849. [PMID: 36512326 DOI: 10.1002/ptr.7701] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/09/2022] [Accepted: 11/19/2022] [Indexed: 12/14/2022]
Abstract
Salidroside, a prominent active ingredient in traditional Chinese medicines, is garnering increased attention because of its unique pharmacological effects against ischemic heart disease via MAPK signaling, which plays a critical role in regulating the evolution of ventricular hypertrophy. However, the function of Salidroside on myocardial hypertrophy has not yet been elucidated. C57BL/6 mice were subjected to transverse aortic constriction (TAC), and treated with Salidroside (100 mg kg-1 day-1 ) by oral gavage for 3 weeks starting 1 week after surgery. Four weeks after TAC surgery, the mice were subjected to echocardiography and then sacrificed to harvest the hearts for analysis. For in vitro study, neonatal rat cardiomyocytes were used to validate the protective effects of Salidroside in response to Angiotensin II (Ang II, 1 μM) stimulation. Here, we proved that Salidroside dramatically inhibited hypertrophic reactions generated by pressure overload and isoproterenol (ISO) injection. Salidroside prevented the activation of the TAK1-JNK/p38 axis. Salidroside pretreatment of TAK1-inhibited cardiomyocytes shows no additional attenuation of Ang II-induced cardiomyocytes hypertrophy and signaling pathway activation. The overexpression of constitutively active TAK1 removed the protective effects of Salidroside on myocardial hypertrophy. TAC-induced increase of TLR4 protein expression was reduced considerably in the Salidroside treated mice. Transient transfection of small interfering RNA targeting TLR4 (siTLR4) in cardiomyocytes did not further decrease the activation of the TAK1/JNK-p38 axis. In conclusion, Salidroside functioned as a TLR4 inhibitor and displayed anti-hypertrophic action via the TAK1/JNK-p38 pathway.
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Affiliation(s)
- Zhen Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Fang-Yuan Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Ming-Yu Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Chen-Fei Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Nan Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Shu-Qing Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Peng An
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, People's Republic of China
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DT-010 Exerts Cardioprotective Effects by Regulating the Crosstalk between the AMPK/PGC-1 α Pathway and ERp57. Cardiovasc Ther 2023; 2023:8047752. [PMID: 36817353 PMCID: PMC9937773 DOI: 10.1155/2023/8047752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/05/2023] [Accepted: 01/30/2023] [Indexed: 02/12/2023] Open
Abstract
The AMP-activated protein kinase (AMPK)/peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) pathway performs a crucial role in energy metabolism and mitochondrial network. Our previous study found that DT-010, a novel danshensu (DSS) and tetramethylpyrazine (TMP) conjugate, had significant cardioprotective properties in vitro and in vivo. We also reported that ERp57 served as a major target of DSS using the chemical proteomics approach. In this article, we focus on exploring the interrelationship between the regulation of the AMPK/PGC-1α pathway and promoting ERp57 expression induced by DT-010 in tert-butylhydroperoxide- (t-BHP-) induced H9c2 cell injury. The results showed that DT-010 activated the AMPK/PGC-1α pathway and increased ERp57 protein expression. Importantly, the above phenomenon as well as the mitochondrial function can be partially reversed by siRNA-mediated ERp57 suppression. Meanwhile, silencing AMPK significantly inhibited the ERp57 expression induced by DT-010. In addition, molecular docking and kinase assay in vitro revealed that DT-010 had no direct regulation effects on AMPK activity. Taken together, DT-010 exerted cardioprotective effects by regulating the crosstalk of AMPK/PGC-1α pathway and ERp57, representing a potential therapeutic agent for ischemic heart disease.
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Heimerl M, Gausepohl T, Mueller JH, Ricke-Hoch M. Neuraminidases-Key Players in the Inflammatory Response after Pathophysiological Cardiac Stress and Potential New Therapeutic Targets in Cardiac Disease. BIOLOGY 2022; 11:biology11081229. [PMID: 36009856 PMCID: PMC9405403 DOI: 10.3390/biology11081229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 05/24/2023]
Abstract
Glycoproteins and glycolipids on the cell surfaces of vertebrates and higher invertebrates contain α-keto acid sugars called sialic acids, terminally attached to their glycan structures. The actual level of sialylation, regulated through enzymatic removal of the latter ones by NEU enzymes, highly affects protein-protein, cell-matrix and cell-cell interactions. Thus, their regulatory features affect a large number of different cell types, including those of the immune system. Research regarding NEUs within heart and vessels provides new insights of their involvement in the development of cardiovascular pathologies and identifies mechanisms on how inhibiting NEU enzymes can have a beneficial effect on cardiac remodelling and on a number of different cardiac diseases including CMs and atherosclerosis. In this regard, a multitude of clinical studies demonstrated the potential of N-acetylneuraminic acid (Neu5Ac) to serve as a biomarker following cardiac diseases. Anti-influenza drugs i.e., zanamivir and oseltamivir are viral NEU inhibitors, thus, they block the enzymatic activity of NEUs. When considering the improvement in cardiac function in several different cardiac disease animal models, which results from NEU reduction, the inhibition of NEU enzymes provides a new potential therapeutic treatment strategy to treat cardiac inflammatory pathologies, and thus, administrate cardioprotection.
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