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Yan X, Liu T, Zhang R, Ma Q, Sun C. RMRP accelerates ligamentum flavum hypertrophy by regulating GSDMD-mediated pyroptosis through Gli1 SUMOylation. Front Immunol 2024; 15:1427970. [PMID: 39221246 PMCID: PMC11362830 DOI: 10.3389/fimmu.2024.1427970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 07/08/2024] [Indexed: 09/04/2024] Open
Abstract
Hypertrophy of ligamentum flavum (LF) is a significant contributing factor to lumbar spinal canal stenosis (LSCS). lncRNA plays a vital role in organ fibrosis, but its role in LF fibrosis remains unclear. Our previous findings have demonstrated that Hedgehog-Gli1 signaling is a critical driver leading to LF hypertrophy. Through the RIP experiment, our group found lnc-RMRP was physically associated with Gli1 and exhibited enrichment in Gli1-activated LF cells. Histological studies revealed elevated expression of RMRP in hypertrophic LF. In vitro experiments further confirmed that RMRP promoted Gli1 SUMO modification and nucleus transfer. Mechanistically, RMRP induced GSDMD-mediated pyroptosis, proinflammatory activation, and collagen expression through the Hedgehog pathway. Notably, the mechanical stress-induced hypertrophy of LF in rabbit exhibited analogous pathological changes of LF fibrosis occurred in human and showed enhanced levels of collagen and α-SMA. Knockdown of RMRP resulted in the decreased expression of fibrosis and pyroptosis-related proteins, ultimately ameliorating fibrosis. The above data concluded that RMRP exerts a crucial role in regulating GSDMD-mediated pyroptosis of LF cells via Gli1 SUMOylation, thus indicating that targeting RMRP could serve as a potential and effective therapeutic strategy for LF hypertrophy and fibrosis.
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Affiliation(s)
| | | | | | - Qinghong Ma
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chao Sun
- Department of Spine Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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2
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Kuang Q, Gao L, Feng L, Xiong X, Yang J, Zhang W, Huang L, Li L, Luo P. Toxicological effects of microplastics in renal ischemia-reperfusion injury. ENVIRONMENTAL TOXICOLOGY 2024; 39:2350-2362. [PMID: 38156432 DOI: 10.1002/tox.24115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/27/2023] [Accepted: 12/10/2023] [Indexed: 12/30/2023]
Abstract
The widespread presence of microplastics (MPs) in the environment poses a significant threat to biological survival and human health. However, our understanding of the toxic effects of MPs on the kidneys remains limited. This study aimed to investigate the underlying mechanism of the toxic effects of MPs on the kidneys using an ischemia-reperfusion (IR) mouse model. Four-week-old ICR mice were exposed to 0.5 μm MPs for 12 weeks prior to IR injury. The results showed that MPs exposure could aggravate the IR-induced damage to renal tubules and glomeruli. Although there were no significant changes in blood urea nitrogen and serum creatinine levels 7 days after IR, MPs treatment resulted in a slight increase in both parameters. In addition, the expression levels of inflammatory factors (MCP-1 and IL-6) at the mRNA level, as well as macrophage markers (CD68 and F4/80), were significantly higher in the MPs + IR group than in the Sham group after IR. Furthermore, MPs exposure exacerbated IR-induced renal fibrosis. Importantly, the expression of pyroptosis-related genes, including NLRP3, ASC, GSDMD, cleaved caspase-1, and IL-18, was significantly upregulated by MPs, indicating that MPs exacerbate pyroptosis in the context of renal IR. In conclusion, our findings suggest that MPs exposure can aggravate renal IR-induced pyroptosis by activating NLRP3-GSDMD signaling.
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Affiliation(s)
- Qihui Kuang
- Department of Urology, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan, China
| | - Likun Gao
- Department of Pathology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Lixiang Feng
- Department of Urology, Wuhan Third Hospital, School of Medicine, Wuhan University of science and Technology, Wuhan, China
| | - Xi Xiong
- Department of Urology, Wuhan Third Hospital, School of Medicine, Wuhan University of science and Technology, Wuhan, China
| | - Jun Yang
- Department of Urology, Department of Urology, Wuhan Third Hospital, Wuhan, China
| | - Wei Zhang
- Department of Urology, Department of Urology, Wuhan Third Hospital, Wuhan, China
| | - Lizhi Huang
- School of Civil Engineering, Wuhan University, Wuhan, China
| | - Lili Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Pengcheng Luo
- Department of Urology, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan, China
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3
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Yasuma T, Gabazza EC. Cell Death in Acute Organ Injury and Fibrosis. Int J Mol Sci 2024; 25:3930. [PMID: 38612740 PMCID: PMC11012379 DOI: 10.3390/ijms25073930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Tissue fibrosis is characterized by the excessive accumulation of extracellular matrix in various organs, including the lungs, liver, skin, kidneys, pancreas, and heart, ultimately leading to organ failure [...].
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Affiliation(s)
- Taro Yasuma
- Department of Immunology, Mie University Faculty and Graduate School of Medicine, Edobashi 2-174, Tsu 514-8507, Japan;
- Department of Diabetes and Endocrinology, Mie University Faculty and Graduate School of Medicine, Edobashi 2-174, Tsu 514-8507, Japan
| | - Esteban C. Gabazza
- Department of Immunology, Mie University Faculty and Graduate School of Medicine, Edobashi 2-174, Tsu 514-8507, Japan;
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4
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Ren C, Wang Q, Fan S, Mi T, Zhang Z, He D. Toll-Like Receptor 9 Aggravates Pulmonary Fibrosis by Promoting NLRP3-Mediated Pyroptosis of Alveolar Epithelial Cells. Inflammation 2024:10.1007/s10753-024-02006-5. [PMID: 38498270 DOI: 10.1007/s10753-024-02006-5] [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: 12/20/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/20/2024]
Abstract
The apoptosis-prone property of alveolar epithelial cells plays a crucial role in pulmonary fibrosis(PF), but the role of pyroptosis in it is still unclear. Toll-like receptor 9(TLR9) has been reported to play a vital role in the pathogenesis of many diseases. However, the effect of TLR9 on alveolar epithelial cells in PF has not been fully elucidated. Gene expression microarray related to Idiopathic pulmonary fibrosis(IPF) was obtained from the Gene Expression Omnibus(GEO) database. In the mouse model of bleomycin-induced PF, adeno-associated virus(AAV6) was used to interfere with TLR9 to construct TLR9 knockdown mice to study the role of TLR9 in PF, and the specific mechanism was studied by intratracheal instillation of NLR family pyrin domain containing 3(NLRP3) activator. In vitro experiments were performed using A549 cells. Bleomycin-induced pyroptosis in the lung tissue of PF mice increased, and TLR9 protein levels also increased, especially in alveolar epithelial cells. The levels of fibrosis and pyroptosis in lung tissue of TLR9 knockdown mice were improved. We found that TLR9 can bind to the NLRP3, thereby increasing the activation of the NLRP3/caspase-1 inflammasome pathway. When we use the NLRP3 activator, the levels of fibrosis and pyroptosis in lung tissue of TLR9 knockout mice can be counteracted. Pyroptosis of alveolar epithelial cells plays a vital role in PF, and TLR9 can promote NLRP3-mediated pyroptosis of alveolar epithelial cells to aggravate the progression of PF and may become a feasible target for the prevention and treatment of PF.
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Affiliation(s)
- Chunnian Ren
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child development and Disorders, China International Science and Technology Cooperation base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
- Department of Cardiothoracic Surgery, Children's Hospital of Chongqing Medical University , National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
| | - Quan Wang
- Department of Cardiothoracic Surgery, Children's Hospital of Chongqing Medical University , National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
| | - Shulei Fan
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tao Mi
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child development and Disorders, China International Science and Technology Cooperation base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
| | - Zhaoxia Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child development and Disorders, China International Science and Technology Cooperation base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
| | - Dawei He
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child development and Disorders, China International Science and Technology Cooperation base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China.
- Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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5
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Peng Y, Qin D, Wang Y, Gao W, Xu X. Pharmacological inhibition of ICOS attenuates the protective effect of exercise on cardiac fibrosis induced by isoproterenol. Eur J Pharmacol 2024; 965:176327. [PMID: 38224847 DOI: 10.1016/j.ejphar.2024.176327] [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: 08/27/2023] [Revised: 12/14/2023] [Accepted: 01/09/2024] [Indexed: 01/17/2024]
Abstract
AIMS To investigate the cardioprotective mechanism of exercise or exercise combined with inducible costimulatory molecules (ICOS) monoclonal antibody (mAb) therapy against isoproterenol (ISO)-induced cardiac remodeling. MAIN METHODS Totally 24 male C57BL/6J mice were randomly divided into four groups: the control group (normal saline treatment), ISO group (subcutaneous injection of isoproterenol, 10 mg/kg/day, once daily for 5 consecutive days), the exercise with subcutaneous ISO injection group (EPI), and the exercise with injected with ISO and ICOS mAb group (EPII). The mice in EPI and EPII group were trained on a small animal treadmill for 4 weeks (13 m/min, 0% grade, 60min/day). KEY FINDINGS Exercise significantly attenuated CD45+, Mac-2 inflammatory cell infiltration, cardiac fibrosis and inhibited the RIPK1/RIPK3/MLKL/CaMKII and cardiomyocyte pyroptosis pathways to counter ISO-induced severe cardiac injury. The administration of the ICOS mAb may inhibit the cardioprotection of exercise against ISO-induced heart damage. Compared to those in EPI, our data showed that the increasing levels of myocardial fibrosis, the leukocyte infiltration of cardiac tissue and proteins expression of cardiac myocyte necrosis and pyroptosis signaling pathways in the EPII group. SIGNIFICANCE Our results demonstrated that exercise decreased leukocyte infiltration in heart, inhibited the cardiomyocyte pyroptosis and necroptosis signaling pathways, and attenuated inflammatory responses to alleviate ISO-induced cardiac fibrosis. However, the antifibrotic effects of combined treatment with exercise and ICOS mAb intervention did not exhibit synergistic enhancement.
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Affiliation(s)
- Yong Peng
- School of Kinesiology, Shanghai University of Sport, Shanghai, China; Jiangsu Collaborative Innovation Center for Sports and Health Project, Nanjing Sport Institute, Nanjing, Jiangsu, China; Key Laboratory of Exercise Training and Rehabilitation for Jiangsu Province, Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Di Qin
- School of Sport and Health, Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Yudi Wang
- School of Physical Education and Nursing, Chengdu College of Arts and Sciences, Chengdu, Sichuan, China
| | - Wenyue Gao
- School of Sport and Health, Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Xin Xu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.
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6
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Gairola S, Sinha A, Kaundal RK. Linking NLRP3 inflammasome and pulmonary fibrosis: mechanistic insights and promising therapeutic avenues. Inflammopharmacology 2024; 32:287-305. [PMID: 37991660 DOI: 10.1007/s10787-023-01389-5] [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: 09/15/2023] [Accepted: 10/25/2023] [Indexed: 11/23/2023]
Abstract
Pulmonary fibrosis is a devastating disorder distinguished by redundant inflammation and matrix accumulation in the lung interstitium. The early inflammatory cascade coupled with recurring tissue injury orchestrates a set of events marked by perturbed matrix hemostasis, deposition of matrix proteins, and remodeling in lung tissue. Numerous investigations have corroborated a direct correlation between the NLR family pyrin domain-containing 3 (NLRP3) activation and the development of pulmonary fibrosis. Dysregulated activation of NLRP3 within the pulmonary microenvironment exacerbates inflammation and may incite fibrogenic responses. Nevertheless, the precise mechanisms through which the NLRP3 inflammasome elicits pro-fibrogenic responses remain inadequately defined. Contemporary findings suggest that the pro-fibrotic consequences stemming from NLRP3 signaling primarily hinge on the action of interleukin-1β (IL-1β). IL-1β instigates IL-1 receptor signaling, potentiating the activity of transforming growth factor-beta (TGF-β). This signaling cascade, in turn, exerts influence over various transcription factors, including SNAIL, TWIST, and zinc finger E-box-binding homeobox 1 (ZEB 1/2), which collectively foster myofibroblast activation and consequent lung fibrosis. Here, we have connected the dots to illustrate how the NLRP3 inflammasome orchestrates a multitude of signaling events, including the activation of transcription factors that facilitate myofibroblast activation and subsequent lung remodeling. In addition, we have highlighted the prominent role played by various cells in the formation of myofibroblasts, the primary culprit in lung fibrosis. We also provided a concise overview of various compounds that hold the potential to impede NLRP3 inflammasome signaling, thus offering a promising avenue for the treatment of pulmonary fibrosis.
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Affiliation(s)
- Shobhit Gairola
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli (NIPER-R), Transit Campus, Bijnor-Sisendi Road, Sarojini Nagar, Near CRPF Base Camp, Lucknow, UP, 226002, India
| | - Antarip Sinha
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli (NIPER-R), Transit Campus, Bijnor-Sisendi Road, Sarojini Nagar, Near CRPF Base Camp, Lucknow, UP, 226002, India
| | - Ravinder K Kaundal
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli (NIPER-R), Transit Campus, Bijnor-Sisendi Road, Sarojini Nagar, Near CRPF Base Camp, Lucknow, UP, 226002, India.
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7
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Boshra SA, Nazeam JA, Esmat A. Flaxseed oil fraction reverses cardiac remodeling at a molecular level: improves cardiac function, decreases apoptosis, and suppresses miRNA-29b and miRNA 1 gene expression. BMC Complement Med Ther 2024; 24:6. [PMID: 38167049 PMCID: PMC10759513 DOI: 10.1186/s12906-023-04319-8] [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: 08/01/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024] Open
Abstract
Flaxseed is an ancient commercial oil that historically has been used as a functional food to lower cholesterol levels. However, despite its longstanding treatment, there is currently a lack of scientific evidence to support its role in the management of cardiac remodeling. This study aimed to address this gap in knowledge by examining the molecular mechanism of standardized flaxseed oil in restoring cardiac remodeling in the heart toxicity vivo model. The oil fraction was purified, and the major components were standardized by qualitative and quantitative analysis. In vivo experimental design was conducted using isoproterenol ISO (85 mg/kg) twice subcutaneously within 24 h between each dose. The rats were treated with flaxseed oil fraction (100 mg/kg orally) and the same dose was used for omega 3 supplement as a positive control group. The GC-MS analysis revealed that α-linolenic acid (24.6%), oleic acid (10.5%), glycerol oleate (9.0%) and 2,3-dihydroxypropyl elaidate (7%) are the major components of oil fraction. Physicochemical analysis indicated that the acidity percentage, saponification, peroxide, and iodine values were 0.43, 188.57, 1.22, and 122.34 respectively. As compared with healthy control, ISO group-induced changes in functional cardiac parameters. After 28-day pretreatment with flaxseed oil, the results indicated an improvement in cardiac function, a decrease in apoptosis, and simultaneous prevention of myocardial fibrosis. The plasma levels of BNP, NT-pro-BNP, endothelin-1, Lp-PLA2, and MMP2, and cTnI and cTn were significantly diminished, while a higher plasma level of Topo 2B was observed. Additionally, miRNA - 1 and 29b were significantly downregulated. These findings provide novel insight into the mechanism of flaxseed oil in restoring cardiac remodeling and support its future application as a cardioprotective against heart diseases.
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Affiliation(s)
- Sylvia A Boshra
- Biochemistry Department, Faculty of Pharmacy, October 6 University, 6 of October City, Giza, 12585, Egypt.
| | - Jilan A Nazeam
- Pharmacognosy Department, Faculty of Pharmacy, October 6 University, 6 of October City, Giza, 12585, Egypt.
| | - Ahmed Esmat
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
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8
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Jiang Y, Li S, Shi R, Yin W, Lv W, Tian T, Lin Y. A Novel Bioswitchable miRNA Mimic Delivery System: Therapeutic Strategies Upgraded from Tetrahedral Framework Nucleic Acid System for Fibrotic Disease Treatment and Pyroptosis Pathway Inhibition. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305622. [PMID: 37984862 PMCID: PMC10767442 DOI: 10.1002/advs.202305622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/16/2023] [Indexed: 11/22/2023]
Abstract
There has been considerable interest in gene vectors and their role in regulating cellular activities and treating diseases since the advent of nucleic acid drugs. MicroRNA (miR) therapeutic strategies are research hotspots as they regulate gene expression post-transcriptionally and treat a range of diseases. An original tetrahedral framework nucleic acid (tFNA) analog, a bioswitchable miR inhibitor delivery system (BiRDS) carrying miR inhibitors, is previously established; however, it remains unknown whether BiRDS can be equipped with miR mimics. Taking advantage of the transport capacity of tetrahedral framework nucleic acid (tFNA) and upgrading it further, the treatment outcomes of a traditional tFNA and BiRDS at different concentrations on TGF-β- and bleomycin-induced fibrosis simultaneously in vitro and in vivo are compared. An upgraded traditional tFNA is designed by successfully synthesizing a novel BiRDS, carrying a miR mimic, miR-27a, for treating skin fibrosis and inhibiting the pyroptosis pathway, which exhibits stability and biocompatibility. BiRDS has three times higher efficiency in delivering miRNAs than the conventional tFNA with sticky ends. Moreover, BiRDS is more potent against fibrosis and pyroptosis-related diseases than tFNAs. These findings indicate that the BiRDS can be applied as a drug delivery system for disease treatment.
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Affiliation(s)
- Yueying Jiang
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Songhang Li
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Ruijianghan Shi
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Wumeng Yin
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Weitong Lv
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Taoran Tian
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
| | - Yunfeng Lin
- State Key Laboratory of Oral DiseasesNational Center for StomatologyNational Clinical Research Center for Oral DiseasesWest China Hospital of StomatologySichuan UniversityChengduSichuan610041China
- Sichuan Provincial Engineering Research Center of Oral BiomaterialsSichuan UniversityChengduSichuan610041China
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Wang B, Chen SM, Yang SQ, Jiang JM, Zhang P, Zou W, Tang XQ. GDF11 mediates H 2S to prevent chronic stress-induced cognitive impairment by reducing hippocampal NLRP3/caspase-1-dependent pyroptosis. J Affect Disord 2024; 344:600-611. [PMID: 37827256 DOI: 10.1016/j.jad.2023.10.040] [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: 05/21/2023] [Revised: 09/17/2023] [Accepted: 10/08/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND We previously revealed that hydrogen sulfide (H2S) attenuates chronic stress-induced cognitive impairment, but the underlying mechanism needs to be further clarified. Growth differentiation factor 11 (GDF11) plays an important regulatory role in cognitive function and that hippocampal NLRP3/caspase-1-mediated pyroptosis contributes to the pathogenesis of cognitive impairment. Hence, this research aimed to explore whether promoting GDF11 levels and suppressing hippocampal NLRP3/caspase-1-mediated pyroptosis mediate H2S to alleviate chronic stress-induced cognitive impairment. METHODS Sprague-Dawley rats were subjected to unpredictable chronic mild stress lasting four weeks to establish an animal model of chronic stress-induced cognitive impairment. Behavioral performance was assessed by the Y-maze test and the novel object recognition test. The expression levels of proteins were analyzed by Western blot analysis. The levels of IL-1β and IL-18 in the hippocampus were measured by ELISA. RESULTS NaHS upregulated the expression of GDF11 in the hippocampus of chronic unpredictable mild stress (CUMS)-exposed rats. Silencing GDF11 blocked NaHS-improved cognitive impairment in CUMS-exposed rats, according to the Y-maze test and the novel object recognition test. Furthermore, NaHS mitigated NLRP3/caspase-1-mediated pyroptosis in the hippocampus of CUMS-exposed rats and this effect was reversed by silencing GDF11. Moreover, overexpression of GDF11 alleviated CUMS-induced cognitive impairment and NLRP3/caspase-1-mediated hippocampal pyroptosis. CONCLUSIONS GDF11 mediates H2S to attenuate chronic stress-induced cognitive impairment via inhibiting hippocampal NLRP3/caspase-1-mediated pyroptosis.
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Affiliation(s)
- Bo Wang
- The First Affiliated Hospital, Institute of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China; The First Affiliated Hospital, Institute of Anesthesiology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - Si-Min Chen
- The First Affiliated Hospital, Institute of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - San-Qiao Yang
- The First Affiliated Hospital, Institute of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - Jia-Mei Jiang
- The First Affiliated Hospital, Institute of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - Ping Zhang
- The Affiliated Nanhua Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China
| | - Wei Zou
- The Affiliated Nanhua Hospital, Department of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China.
| | - Xiao-Qing Tang
- The First Affiliated Hospital, Institute of Neurology, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China; Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China; The Second Affiliated Hospital, Institute of Cerebral Disease, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, PR China.
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10
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Hua R, Gao H, He C, Xin S, Wang B, Zhang S, Gao L, Tao Q, Wu W, Sun F, Xu J. An emerging view on vascular fibrosis molecular mediators and relevant disorders: from bench to bed. Front Cardiovasc Med 2023; 10:1273502. [PMID: 38179503 PMCID: PMC10764515 DOI: 10.3389/fcvm.2023.1273502] [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: 08/06/2023] [Accepted: 11/27/2023] [Indexed: 01/06/2024] Open
Abstract
Vascular fibrosis is a widespread pathologic condition that arises during vascular remodeling in cardiovascular dysfunctions. According to previous studies, vascular fibrosis is characterized by endothelial matrix deposition and vascular wall thickening. The RAAS and TGF-β/Smad signaling pathways have been frequently highlighted. It is, however, far from explicit in terms of understanding the cause and progression of vascular fibrosis. In this review, we collected and categorized a large number of molecules which influence the fibrosing process, in order to acquire a better understanding of vascular fibrosis, particularly of pathologic dysfunction. Furthermore, several mediators that prevent vascular fibrosis are discussed in depth in this review, with the aim that this will contribute to the future prevention and treatment of related conditions.
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Affiliation(s)
- Rongxuan Hua
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Han Gao
- Department of Clinical Laboratory, Aerospace Center Hospital, Peking University, Beijing, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Boya Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Peking University Cancer Hospital & Institute, Beijing, China
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Lei Gao
- Department of Biomedical Informatics, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Qiang Tao
- Department of Biomedical Informatics, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Wenqi Wu
- Experimental Center for Morphological Research Platform, Capital Medical University, Beijing, China
| | - Fangling Sun
- Department of Experimental Animal Laboratory, Xuan-Wu Hospital of Capital Medical University, Beijing, China
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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11
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Huo S, Li B, Du J, Zhang X, Zhang J, Wang Q, Song M, Li Y. Dibutyl phthalate induces liver fibrosis via p38MAPK/NF-κB/NLRP3-mediated pyroptosis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165500. [PMID: 37442457 DOI: 10.1016/j.scitotenv.2023.165500] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Dibutyl phthalate (DBP) is one of the most employed plasticizers pervading the environment. DBP is a newly identified global organic pollutant that can activate NLRP3 inflammasomes and induce inflammatory liver injury. However, its hepatotoxicity remains poorly understood. The objective of this investigation was to investigate the probable pathways underlying DBP-induced liver injury. First, C57BL/6N mice were orally administered DBP at 10 and 50 mg/kg B.W. doses for 28 days. The observed results indicated a significant increase in liver collagen deposition and upregulated protein expression of fibrosis markers in mice. In addition, the p38MAPK/NF-κB signaling pathway and pyroptosis-related protein expression were upregulated. To establish a correlation between these changes, we conducted a conditioned medium co-culture of human hepatocellular carcinoma (HepG2) and human hepatic stellate (LX-2) cells. We performed inhibitor interventions to validate the mechanism of DBP-induced liver fibrosis in vitro. After treatment with p38MAPK (SB203580), NF-κB (PDTC), and NLRP3 (MCC950) inhibitors, the activation of LX-2 cells, the p38MAPK/NF-κB signaling pathway and pyroptosis due to DBP were alleviated. Therefore, DBP exposure leads to NLRP3-mediated pyroptosis of hepatocytes via the p38MAPK/NF-κB signaling pathway, activating LX-2 cells and causing liver fibrosis. Our findings offer a conceptual framework to understand the pathological underpinnings of DBP-induced liver injury while proposing novel ideas to prevent and treat DBP hepatotoxicity. Thus, targeting p38MAPK, NF-κB, and NLRP3 may prevent DBP-induced liver fibrosis.
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Affiliation(s)
- Siming Huo
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Bo Li
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiayu Du
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xuliang Zhang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jian Zhang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Qi Wang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Miao Song
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yanfei Li
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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12
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Li A, Gu L, He C, Li Y, Peng M, Liao J, Xiao R, Xu L, Guo S. GATA6 promotes fibrotic repair of tracheal injury through NLRP3 inflammasome-mediated epithelial pyroptosis. Int Immunopharmacol 2023; 123:110657. [PMID: 37531826 DOI: 10.1016/j.intimp.2023.110657] [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: 06/06/2023] [Revised: 07/08/2023] [Accepted: 07/13/2023] [Indexed: 08/04/2023]
Abstract
Tracheal injury is a challenging emergency condition that is characterized by the abnormal repair of the trachea. GATA6, a well-established transcription factor, plays a crucial role in tissue injury and epithelial regenerative repair. This study aims to evaluate the role of GATA6 in NF-κB-mediated NLRP3 inflammasome activation and pyroptosis after tracheal injury. Tracheal tissues and serum samples were collected from clinical patients and a rat model of tracheal injury. Upon GATA6 knockdown or overexpression, BEAS-2B and rat tracheal epithelial (RTE) cells were treated with lipopolysaccharides and nigericin before being co-cultured with primary tracheal fibroblasts. The changes of NLRP3 inflammasome activation and pyroptosis and their underlying mechanisms were detected. Additionally, the role of GATA6 downregulation in tracheal injury was verified in rats. GATA6 expression and NLRP3 inflammasome activation were upregulated following tracheal injury in the epithelium of granulation tissues. GATA6 silencing inhibited NLRP3 priming, NLRP3 inflammasome activation, and pyroptosis in BEAS-2B and RTE cells. Mechanistically, GATA6 was determined to have bound to the promoter region of NLRP3 and synergistically upregulated NLRP3 promoter activity with NF-κB. Furthermore, GATA6 overexpression promoted epithelial-mesenchymal transition via modulating the NF-κB/NLRP3 pathway. Epithelial NLRP3 inflammasome activation triggered ECM production in fibroblasts, which was suppressed by GATA6 knockdown and induced by GATA6 overexpression. Finally, the downregulation of GATA6 alleviated NLRP3 inflammasome-mediated pyroptosis induced by tracheal injury in rats, thereby reducing tracheal stenosis, inflammation, and fibrosis. GATA6 promotes fibrotic repair in tracheal injury through NLRP3 inflammasome-mediated epithelial pyroptosis, making it a potential biological therapeutic target for tracheal injury.
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Affiliation(s)
- Anmao Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Gu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunyan He
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yishi Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Mingyu Peng
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiaxin Liao
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rui Xiao
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Xu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shuliang Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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13
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Chen W, Ding M, Ji L, Yao J, Guo Y, Yan W, Yu S, Shen Q, Huang M, Zheng Y, Lin Y, Wang Y, Liu Z, Lu L, Jin X. Bile acids promote the development of HCC by activating inflammasome. Hepatol Commun 2023; 7:e0217. [PMID: 37556375 PMCID: PMC10412435 DOI: 10.1097/hc9.0000000000000217] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/06/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is associated with chronic inflammation caused by different factors; especially, the interaction of inflammatory pathways and bile acids (BAs) can affect hepatocyte proliferation, death, and regeneration, but whether BAs promote HCC progression through inflammatory pathways and the mechanisms is still unclear. METHODS AND RESULTS By examining cancer and tumor-adjacent tissue BA levels and genes associated with BA homeostasis in 37 HCC patients, we found that total bile acids (TBAs) were decreased by 36% and varying degrees of changes in factors regulating BA homeostasis (p < 0.05). In addition, we found that BA homeostasis was disturbed in diethylnitrosamine-induced HCC mouse models, and TBA was correlated with inflammasome activation during HCC progression (6-24 W) (p < 0.05). Similarly, the inflammasome and chenodeoxycholic acid (CDCA) content were suppressed in cholestasis model mice (Mrp2-deficient mice) (p < 0.05). In vitro, CDCA significantly promoted the malignant transformation of hepatocytes (p < 0.001), activated the inflammasome by triggering the release of mitochondrial reactive oxygen species and mitochondrial DNA, and ultimately induced pyroptosis. Furthermore, we found that CDCA has a targeted binding effect with HO-1 through molecular docking and Cellular Thermal Shift Assay experiments. CONCLUSIONS In conclusion, we found that CDCA can trigger the excessive accumulation of mitochondrial reactive oxygen species by targeting HO-1 to promote the activation of the inflammasome and ultimately promote the progression of HCC. Our study provides a novel mechanism by which BAs promote HCC by activating the inflammasome and establishes the important role of BA homeostasis imbalance in the progression of HCC from the aspect of inflammation.
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Affiliation(s)
- Wenbo Chen
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ming Ding
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liyan Ji
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingjing Yao
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yajuan Guo
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenxin Yan
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shaofang Yu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qinghong Shen
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Min Huang
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yaqiu Zheng
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuefang Lin
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ying Wang
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhongqiu Liu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, SAR, China
| | - Linlin Lu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, SAR, China
| | - Xin Jin
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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14
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Yan X, Xie Y, Liu H, Huang M, Yang Z, An D, Jiang G. Iron accumulation and lipid peroxidation: implication of ferroptosis in diabetic cardiomyopathy. Diabetol Metab Syndr 2023; 15:161. [PMID: 37468902 DOI: 10.1186/s13098-023-01135-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/09/2023] [Indexed: 07/21/2023] Open
Abstract
Diabetic cardiomyopathy (DC) is a serious heart disease caused by diabetes. It is unrelated to hypertension and coronary artery disease and can lead to heart insufficiency, heart failure and even death. Currently, the pathogenesis of DC is unclear, and clinical intervention is mainly symptomatic therapy and lacks effective intervention objectives. Iron overdose mediated cell death, also known as ferroptosis, is widely present in the physiological and pathological processes of diabetes and DC. Iron is a key trace element in the human body, regulating the metabolism of glucose and lipids, oxidative stress and inflammation, and other biological processes. Excessive iron accumulation can lead to the imbalance of the antioxidant system in DC and activate and aggravate pathological processes such as excessive autophagy and mitochondrial dysfunction, resulting in a chain reaction and accelerating myocardial and microvascular damage. In-depth understanding of the regulating mechanisms of iron metabolism and ferroptosis in cardiovascular vessels can help improve DC management. Therefore, in this review, we summarize the relationship between ferroptosis and the pathogenesis of DC, as well as potential intervention targets, and discuss and analyze the limitations and future development prospects of these targets.
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Affiliation(s)
- Xuehua Yan
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China
- Xinjiang Key Laboratory of Famous Prescription and Science of Formulas, Xinjiang, China
| | - Yang Xie
- Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Xinjiang, China
| | - Hongbing Liu
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China
| | - Meng Huang
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China
| | - Zhen Yang
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China
| | - Dongqing An
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China.
- Xinjiang Key Laboratory of Famous Prescription and Science of Formulas, Xinjiang, China.
- Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Xinjiang, China.
| | - Guangjian Jiang
- College of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China.
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15
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Chen J, Li Q, Hong Y, Zhou X, Yu C, Tian X, Zhao J, Long C, Shen L, Wu S, Wei G. Inhibition of the NF-κB Signaling Pathway Alleviates Pyroptosis in Bladder Epithelial Cells and Neurogenic Bladder Fibrosis. Int J Mol Sci 2023; 24:11160. [PMID: 37446339 DOI: 10.3390/ijms241311160] [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: 05/24/2023] [Revised: 06/25/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Most children with a neurogenic bladder (NB) have bladder fibrosis, which causes irreversible bladder dysfunction and damage to the upper urinary tract. However, the mechanism of bladder fibrosis remains unclear. This study aimed to investigate the underlying causes of bladder fibrosis. Here, the lumbar 6 (L6) and sacral 1 (S1) spinal nerves of Sprague Dawley rats were severed bilaterally to establish NB models. Using RNA-seq, we discovered that the NF-κB signaling pathway and inflammation were upregulated in spinal cord injury (SCI)-induced bladder fibrosis. Subsequent Western blotting, enzyme-linked immunosorbent assays, immunohistochemical staining, and immunofluorescence staining verified the RNA-seq findings. To further clarify whether the NF-κB signaling pathway and pyroptosis were involved in bladder fibrosis, a TGF-β1-treated urinary epithelial cell line (SV-HUC-1 cells) was used as an in vitro model. Based on the results of RNA-seq, we consistently found that the NF-κB signaling pathway and pyroptosis might play important roles in TGF-β1-treated cells. Further experiments also confirmed the RNA-seq findings in vitro. Moreover, using the NLRP3 inhibitor MCC950 rescued TGF-β1-induced fibrosis, and the NF-κB signaling pathway inhibitor BAY 11-7082 effectively rescued TGF-β1-induced pyroptosis and the deposition of extracellular matrix by SV-HUC-1 cells. In summary, our research demonstrated for the first time that the NF-κB signaling pathway inhibition rescued bladder epithelial cells pyroptosis and fibrosis in neurogenic bladders.
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Affiliation(s)
- Jing Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Qi Li
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xiazhu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Chengjun Yu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xiaomao Tian
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Jie Zhao
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Chunlan Long
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Lianju Shen
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
- Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing 400014, China
- Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 400014, China
- National Clinical Research Center for Child Health and Disorders, Chongqing 400014, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
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16
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Ouyang B, Deng L, Yang F, Shi H, Wang N, Tang W, Huang X, Zhou Y, Yu H, Wei Y, Dong J. Albumin-based formononetin nanomedicines for lung injury and fibrosis therapy via blocking macrophage pyroptosis. Mater Today Bio 2023; 20:100643. [PMID: 37214555 PMCID: PMC10193015 DOI: 10.1016/j.mtbio.2023.100643] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/23/2023] [Accepted: 04/23/2023] [Indexed: 05/24/2023] Open
Abstract
Pulmonary fibrosis that occurs following lung injury is a progressive and fatal disease since continual damage to lung tissue triggers the dysregulated inflammation response and accompanying abnormal healing process. Pyroptosis of alveolar macrophages has been found to play an essential role in the deterioration of lung injury and fibrosis. However, the lack of inhibitors against this inflammatory cell death in macrophages and the dense stroma pose major barriers to lung injury and fibrosis treatment. Herein, we developed an albumin-based nanoformulation to realize active delivery of formononetin (FMN) to improve the treatment of lung injury and fibrosis. The obtained nanoparticle, FMN@BSA NPs, could efficiently accumulate at the impaired lesion benefiting from the leaky vasculatures and the affinity between albumin and the overexpressed SPARC protein. Through blocking the NLRP3 inflammasome-involved pyroptosis process of macrophages, FMN@BSA NPs remarkably improved lung function and prolonged animal survival in the bleomycin (BLM)-induced lung injury and fibrosis model without noticeable side effects. Meanwhile, we proved FMN as a pyroptosis inhibitor and the corresponding lipid metabolism-related mechanisms through multi-omics analysis. This study first employed an albumin-based nanoparticle to deliver the pyroptosis inhibitor to the impaired lung tissue actively, providing a promising strategy for lung injury and fibrosis treatment.
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Affiliation(s)
- Boshu Ouyang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Lingling Deng
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Fangyong Yang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Hanlin Shi
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Na Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Weifeng Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Xi Huang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Yaolong Zhou
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Hang Yu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
- Institutes of Integrative Medicine, Fudan University, Shanghai, 200040, PR China
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17
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Chen Y, Zhao Y, Miao C, Yang L, Wang R, Chen B, Zhang Q. Quercetin alleviates cyclophosphamide-induced premature ovarian insufficiency in mice by reducing mitochondrial oxidative stress and pyroptosis in granulosa cells. J Ovarian Res 2022; 15:138. [PMID: 36572950 PMCID: PMC9793602 DOI: 10.1186/s13048-022-01080-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/16/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Exposure to cyclophosphamide (CTX) induces premature ovarian insufficiency (POI). Quercetin is a natural flavonoid that exhibits anti-inflammatory and antioxidant properties, and its antioxidant activity is correlated with POI. However, the mechanism underlying its protective role in CTX-induced ovarian dysfunction is unclear. This study aimed to explore whether quercetin can protect ovarian reserves by activating mitochondrial biogenesis and inhibiting pyroptosis. METHODS Thirty-six female C57BL/6 mice were randomly subdivided into six groups. Except for the control group, all groups were injected with 90 mg/kg CTX to establish a POI model and further treated with coenzyme 10 or various doses of quercetin. The mice were sacrificed 48 h after 10 IU pregnant mare serum gonadotropin was injected four weeks after treatments. We used enzyme-linked immunosorbent assays to detect serum hormone expression and light and transmission electron microscopy to assess ovarian tissue morphology and mitochondria. Additionally, we tested oxidant and antioxidant levels in ovarian tissues and mitochondrial function in granulosa cells (GCs). The expression of mitochondrial biogenesis and pyroptosis-related proteins and mRNA was analyzed using western blotting and RT-qPCR. RESULTS Quercetin elevated serum anti-Müllerian hormone, estradiol, and progesterone levels, decreased serum follicle-stimulating hormone and luteinizing hormone levels, and alleviated ovarian pathology. It reduced the mitochondrial DNA content and mitochondrial membrane potential. Furthermore, it upregulated ATP levels and the mRNA and protein expression of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α), mitochondrial transcription factor A, and superoxide dismutase 2. In addition, it suppressed NOD-like receptor pyrin domain containing 3, caspase-1, interleukin-1β, and gasdermin D levels in the GCs of POI mice. CONCLUSIONS Quercetin protected the ovarian reserve from CTX-induced ovarian damage by reversing mitochondrial dysfunction and activating mitochondrial biogenesis via the PGC1-α pathway. Moreover, quercetin may improve ovarian functions by downregulating pyroptosis in the CTX-induced POI model. Thus, quercetin can be considered a potential agent for treating POI.
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Affiliation(s)
- Yun Chen
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Ying Zhao
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Chenyun Miao
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Liuqing Yang
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Ruye Wang
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Bixia Chen
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
| | - Qin Zhang
- grid.268505.c0000 0000 8744 8924Department of TCM Gynecology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, 453 Tiyuchang Road, Xihu District, Hangzhou, 310007 Zhejiang Province China
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Dovrolis N, Filidou E, Tarapatzi G, Kokkotis G, Spathakis M, Kandilogiannakis L, Drygiannakis I, Valatas V, Arvanitidis K, Karakasiliotis I, Vradelis S, Manolopoulos VG, Paspaliaris V, Bamias G, Kolios G. Co-expression of fibrotic genes in inflammatory bowel disease; A localized event? Front Immunol 2022; 13:1058237. [PMID: 36632136 PMCID: PMC9826764 DOI: 10.3389/fimmu.2022.1058237] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/08/2022] [Indexed: 12/27/2022] Open
Abstract
Introduction Extracellular matrix turnover, a ubiquitous dynamic biological process, can be diverted to fibrosis. The latter can affect the intestine as a serious complication of Inflammatory Bowel Diseases (IBD) and is resistant to current pharmacological interventions. It embosses the need for out-of-the-box approaches to identify and target molecular mechanisms of fibrosis. Methods and results In this study, a novel mRNA sequencing dataset of 22 pairs of intestinal biopsies from the terminal ileum (TI) and the sigmoid of 7 patients with Crohn's disease, 6 with ulcerative colitis and 9 control individuals (CI) served as a validation cohort of a core fibrotic transcriptomic signature (FIBSig), This signature, which was identified in publicly available data (839 samples from patients and healthy individuals) of 5 fibrotic disorders affecting different organs (GI tract, lung, skin, liver, kidney), encompasses 241 genes and the functional pathways which derive from their interactome. These genes were used in further bioinformatics co-expression analyses to elucidate the site-specific molecular background of intestinal fibrosis highlighting their involvement, particularly in the terminal ileum. We also confirmed different transcriptomic profiles of the sigmoid and terminal ileum in our validation cohort. Combining the results of these analyses we highlight 21 core hub genes within a larger single co-expression module, highly enriched in the terminal ileum of CD patients. Further pathway analysis revealed known and novel inflammation-regulated, fibrogenic pathways operating in the TI, such as IL-13 signaling and pyroptosis, respectively. Discussion These findings provide a rationale for the increased incidence of fibrosis at the terminal ileum of CD patients and highlight operating pathways in intestinal fibrosis for future evaluation with mechanistic and translational studies.
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Affiliation(s)
- Nikolas Dovrolis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Laboratory of Biology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece,*Correspondence: George Kolios, ; Nikolas Dovrolis,
| | - Eirini Filidou
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Gesthimani Tarapatzi
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Georgios Kokkotis
- Gastrointestinal (GI) Unit, 3 Department of Internal Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Michail Spathakis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Leonidas Kandilogiannakis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Ioannis Drygiannakis
- Gastroenterology and Hepatology Research Laboratory, Medical School, University of Crete, Heraklion, Greece
| | - Vassilis Valatas
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Gastroenterology and Hepatology Research Laboratory, Medical School, University of Crete, Heraklion, Greece
| | - Konstantinos Arvanitidis
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Ioannis Karakasiliotis
- Laboratory of Biology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Stergios Vradelis
- Second Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Vangelis G. Manolopoulos
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | | | - Giorgos Bamias
- Gastrointestinal (GI) Unit, 3 Department of Internal Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - George Kolios
- Laboratory of Pharmacology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece,Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece,*Correspondence: George Kolios, ; Nikolas Dovrolis,
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19
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Hypoxia-Induced HIF-1α Expression Promotes Neurogenic Bladder Fibrosis via EMT and Pyroptosis. Cells 2022; 11:cells11233836. [PMID: 36497096 PMCID: PMC9739388 DOI: 10.3390/cells11233836] [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: 11/07/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Neurogenic bladder (NB) patients exhibit varying degrees of bladder fibrosis, and the thickening and hardening of the bladder wall induced by fibrosis will further affect bladder function and cause renal failure. Our study aimed to investigate the mechanism of bladder fibrosis caused by a spinal cord injury (SCI). METHODS NB rat models were created by cutting the bilateral lumbar 6 (L6) and sacral 1 (S1) spinal nerves. RNA-seq, Western blotting, immunofluorescence, cell viability and ELISA were performed to assess the inflammation and fibrosis levels. RESULTS The rats showed bladder dysfunction, upper urinary tract damage and bladder fibrosis after SCI. RNA-seq results indicated that hypoxia, EMT and pyroptosis might be involved in bladder fibrosis induced by SCI. Subsequent Western blot, ELISA and cell viability assays and immunofluorescence of bladder tissue confirmed the RNA-seq findings. Hypoxic exposure increased the expression of HIF-1α and induced EMT and pyroptosis in bladder epithelial cells. Furthermore, HIF-1α knockdown rescued hypoxia-induced pyroptosis, EMT and fibrosis. CONCLUSION EMT and pyroptosis were involved in the development of SCI-induced bladder fibrosis via the HIF-1α pathway. Inhibition of the HIF-1α pathway may serve as a potential target to alleviate bladder fibrosis caused by SCI.
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Naryzhnaya NV, Maslov LN, Popov SV, Mukhomezyanov AV, Ryabov VV, Kurbatov BK, Gombozhapova AE, Singh N, Fu F, Pei JM, Logvinov SV. Pyroptosis is a drug target for prevention of adverse cardiac remodeling: The crosstalk between pyroptosis, apoptosis, and autophagy. J Biomed Res 2022; 36:375-389. [PMID: 36320147 PMCID: PMC9724161 DOI: 10.7555/jbr.36.20220123] [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] [Indexed: 01/17/2023] Open
Abstract
Acute myocardial infarction (AMI) is one of the main reasons of cardiovascular disease-related death. The introduction of percutaneous coronary intervention to clinical practice dramatically decreased the mortality rate in AMI. Adverse cardiac remodeling is a serious problem in cardiology. An increase in the effectiveness of AMI treatment and prevention of adverse cardiac remodeling is difficult to achieve without understanding the mechanisms of reperfusion cardiac injury and cardiac remodeling. Inhibition of pyroptosis prevents the development of postinfarction and pressure overload-induced cardiac remodeling, and mitigates cardiomyopathy induced by diabetes and metabolic syndrome. Therefore, it is reasonable to hypothesize that the pyroptosis inhibitors may find a role in clinical practice for treatment of AMI and prevention of cardiac remodeling, diabetes and metabolic syndrome-triggered cardiomyopathy. It was demonstrated that pyroptosis interacts closely with apoptosis and autophagy. Pyroptosis could be inhibited by nucleotide-binding oligomerization domain-like receptor with a pyrin domain 3 inhibitors, caspase-1 inhibitors, microRNA, angiotensin-converting enzyme inhibitors, angiotensin Ⅱ receptor blockers, and traditional Chinese herbal medicines.
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Affiliation(s)
- Natalia V. Naryzhnaya
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Leonid N. Maslov
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia,Leonid N. Maslov, Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the RAS, Kyevskaya 111A, Tomsk, Tomsk Region 634012, Russia. Tel: +7-3822-262174, E-mail:
| | - Sergey V. Popov
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Alexandr V. Mukhomezyanov
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Vyacheslav V. Ryabov
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Boris K. Kurbatov
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Alexandra E. Gombozhapova
- Laboratory of Experimental Cardiology, Cardiology Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Tomsk Region 634012, Russia
| | - Nirmal Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, India
| | - Feng Fu
- Department of Physiology and Pathophysiology, National Key Discipline of Cell Biology, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jian-Ming Pei
- Department of Physiology and Pathophysiology, National Key Discipline of Cell Biology, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Sergey V. Logvinov
- Department of Histology, Embryology and Cytology, Siberian State Medical University, Tomsk, Tomsk Region 634055, Russia
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21
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Fang J, Zhang Y, Chen D, Zheng Y, Jiang J. Exosomes and Exosomal Cargos: A Promising World for Ventricular Remodeling Following Myocardial Infarction. Int J Nanomedicine 2022; 17:4699-4719. [PMID: 36217495 PMCID: PMC9547598 DOI: 10.2147/ijn.s377479] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/21/2022] [Indexed: 11/23/2022] Open
Abstract
Exosomes are a pluripotent group of extracellular nanovesicles secreted by all cells that mediate intercellular communications. The effective information within exosomes is primarily reflected in exosomal cargos, including proteins, lipids, DNAs, and non-coding RNAs (ncRNAs), the most intensively studied molecules. Cardiac resident cells (cardiomyocytes, fibroblasts, and endothelial cells) and foreign cells (infiltrated immune cells, cardiac progenitor cells, cardiosphere-derived cells, and mesenchymal stem cells) are involved in the progress of ventricular remodeling (VR) following myocardial infarction (MI) via transferring exosomes into target cells. Here, we summarize the pathological mechanisms of VR following MI, including cardiac myocyte hypertrophy, cardiac fibrosis, inflammation, pyroptosis, apoptosis, autophagy, angiogenesis, and metabolic disorders, and the roles of exosomal cargos in these processes, with a focus on proteins and ncRNAs. Continued research in this field reveals a novel diagnostic and therapeutic strategy for VR.
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Affiliation(s)
- Jiacheng Fang
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People’s Republic of China
| | - Yuxuan Zhang
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People’s Republic of China
| | - Delong Chen
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People’s Republic of China
| | - Yiyue Zheng
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People’s Republic of China
| | - Jun Jiang
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People’s Republic of China,Correspondence: Jun Jiang, Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, Zhejiang, 310009, People’s Republic of China, Tel/Fax +86 135 8870 6891, Email
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22
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HHcy Induces Pyroptosis and Atherosclerosis via the Lipid Raft-Mediated NOX-ROS-NLRP3 Inflammasome Pathway in apoE -/- Mice. Cells 2022; 11:cells11152438. [PMID: 35954287 PMCID: PMC9368640 DOI: 10.3390/cells11152438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/31/2022] [Accepted: 08/03/2022] [Indexed: 11/21/2022] Open
Abstract
Lipid rafts play important roles in signal transduction, particularly in responses to inflammatory processes. The current study aimed to identify whether lipid raft-mediated inflammation contributes to hyperhomocysteinemia (HHcy)-accelerated atherosclerosis (AS), and to investigate the underlying mechanisms. THP-1-derived macrophages were used for in vitro experiments. ApoE−/− mice were fed a high-fat diet for 12 weeks to establish an AS model, and a high-fat plus high-methionine diet was used to induce HHcy. We found that homocysteine (Hcy) increased the expression of p22phox and p67phox and promoted their recruitment into lipid rafts (indicating the assembly of the NOX complex), thereby increasing ROS generation and NOX activity, NLRP3 inflammasome activation, and pyroptosis. Mechanistically, Hcy activated the NOX-ROS-NLRP3 inflammasome pathway and induced pyroptosis by increasing the expression of acid sphingomyelinase (ASM) to promote the formation of lipid raft clustering. Importantly, lipid raft-mediated pyroptosis was confirmed in HHcy mice, and HHcy-promoted macrophage recruitment in atherosclerotic lesions and HHcy-aggravated AS were blocked by the lipid raft disruptor methyl-β-cyclodextrin. The study findings indicate that Hcy promotes lipid raft clustering via the upregulation of ASM, which mediates the assembly of the NOX complex, causing an increase in ROS generation, NLRP3 inflammasome activation, and pyroptosis, and contributes to HHcy-induced AS.
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