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Zhang QB, Huo L, Li M, Zhang R, Zhou T, Wang F, Zhou Y. Role of hypoxia-mediated pyroptosis in the development of extending knee joint contracture in rats. Eur J Med Res 2024; 29:298. [PMID: 38802976 PMCID: PMC11129407 DOI: 10.1186/s40001-024-01890-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 05/20/2024] [Indexed: 05/29/2024] Open
Abstract
Joint contracture is one of the common diseases clinically, and joint capsule fibrosis is considered to be one of the most important pathological changes of joint contracture. However, the underlying mechanism of joint capsule fibrosis is still controversial. The present study aims to establish an animal model of knee extending joint contracture in rats, and to investigate the role of hypoxia-mediated pyroptosis in the progression of joint contracture using this animal model. 36 male SD rats were selected, 6 of which were not immobilized and were used as control group, while 30 rats were divided into I-1 group (immobilized for 1 week following 7 weeks of free movement), I-2 group (immobilized for 2 weeks following 6 weeks of free movement), I-4 group (immobilized for 4 weeks following 4 weeks of free movement), I-6 group (immobilized for 6 weeks following 2 weeks of free movement) and I-8 group (immobilized for 8 weeks) according to different immobilizing time. The progression of joint contracture was assessed by the measurement of knee joint range of motion, collagen deposition in joint capsule was examined with Masson staining, protein expression levels of HIF-1α, NLRP3, Caspase-1, GSDMD-N, TGF-β1, α-SMA and p-Smad3 in joint capsule were assessed using western blotting, and the morphological changes of fibroblasts were observed by transmission electron microscopy. The degree of total and arthrogenic contracture progressed from the first week and lasted until the first eight weeks after immobilization. The degree of total and arthrogenic contracture progressed rapidly in the first four weeks after immobilization and then progressed slowly. Masson staining indicated that collagen deposition in joint capsule gradually increased in the first 8 weeks following immobilization. Western blotting analysis showed that the protein levels of HIF-1α continued to increase during the first 8 weeks of immobilization, and the protein levels of pyroptosis-related proteins NLRP3, Caspase-1, GSDMD-N continued to increase in the first 4 weeks after immobilization and then decreased. The protein levels of fibrosis-related proteins TGF-β1, p-Smad3 and α-SMA continued to increase in the first 8 weeks after immobilization. Transmission electron microscopy showed that 4 weeks of immobilization induced cell membrane rupture and cell contents overflow, which further indicated the activation of pyroptosis. Knee extending joint contracture animal model can be established by external immobilization orthosis in rats, and the activation of hypoxia-mediated pyroptosis may play a stimulating role in the process of joint capsule fibrosis and joint contracture.
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Affiliation(s)
- Quan-Bing Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China
| | - Lei Huo
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China
| | - Mian Li
- Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Rui Zhang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China
| | - Ting Zhou
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China
| | - Feng Wang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China
| | - Yun Zhou
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Economic and Technological Development Zone, Hefei, 230601, Anhui, China.
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Zhang BL, Yu P, Su EY, Zhang CY, Xie SY, Yang X, Zou YZ, Liu M, Jiang H. Inhibition of GSDMD activation by Z-LLSD-FMK or Z-YVAD-FMK reduces vascular inflammation and atherosclerotic lesion development in ApoE -/- mice. Front Pharmacol 2023; 14:1184588. [PMID: 37593179 PMCID: PMC10427923 DOI: 10.3389/fphar.2023.1184588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 07/17/2023] [Indexed: 08/19/2023] Open
Abstract
Pyroptosis is a form of pro-inflammatory cell death that can be mediated by gasdermin D (GSDMD) activation induced by inflammatory caspases such as caspase-1. Emerging evidence suggests that targeting GSDMD activation or pyroptosis may facilitate the reduction of vascular inflammation and atherosclerotic lesion development. The current study investigated the therapeutic effects of inhibition of GSDMD activation by the novel GSDMD inhibitor N-Benzyloxycarbonyl-Leu-Leu-Ser-Asp(OMe)-fluoromethylketone (Z-LLSD-FMK), the specific caspase-1 inhibitor N-Benzyloxycarbonyl-Tyr-Val-Ala-Asp(OMe)-fluoromethylketone (Z-YVAD-FMK), and a combination of both on atherosclerosis in ApoE-/- mice fed a western diet at 5 weeks of age, and further determined the efficacy of these polypeptide inhibitors in bone marrow-derived macrophages (BMDMs). In vivo studies there was plaque formation, GSDMD activation, and caspase-1 activation in aortas, which increased gradually from 6 to 18 weeks of age, and increased markedly at 14 and 18 weeks of age. ApoE-/- mice were administered Z-LLSD-FMK (200 µg/day), Z-YVAD-FMK (200 µg/day), a combination of both, or vehicle control intraperitoneally from 14 to 18 weeks of age. Treatment significantly reduced lesion formation, macrophage infiltration in lesions, protein levels of vascular cell adhesion molecule-1 and monocyte chemoattractant protein-1, and pyroptosis-related proteins such as activated caspase-1, activated GSDMD, cleaved interleukin(IL)-1β, and high mobility group box 1 in aortas. No overt differences in plasma lipid contents were detected. In vitro treatment with these polypeptide inhibitors dramatically decreased the percentage of propidium iodide-positive BMDMs, the release of lactate dehydrogenase and IL-1β, and protein levels of pyroptosis-related proteins both in supernatants and cell lysates elevated by lipopolysaccharide + nigericin. Notably however, there were no significant differences in the above-mentioned results between the Z-LLSD-FMK group and the Z-YVAD-FMK group, and the combination of both did not yield enhanced effects. These findings indicate that suppression of GSDMD activation by Z-LLSD-FMK or Z-YVAD-FMK reduces vascular inflammation and lesion development in ApoE-/- mice.
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Affiliation(s)
- Bao-Li Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peng Yu
- Department of Endocrinology and Metabolism, Fudan Institute of Metabolic Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - En-Yong Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chun-Yu Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shi-Yao Xie
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xue Yang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yun-Zeng Zou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ming Liu
- Department of Health Management Center, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Engineering Research Center of AI Technology for Cardiopulmonary Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Jiang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Engineering Research Center of AI Technology for Cardiopulmonary Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
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Liu Y, Lei H, Zhang W, Xing Q, Liu R, Wu S, Liu Z, Yan Q, Li W, Liu X, Hu Y. Pyroptosis in renal inflammation and fibrosis: current knowledge and clinical significance. Cell Death Dis 2023; 14:472. [PMID: 37500614 PMCID: PMC10374588 DOI: 10.1038/s41419-023-06005-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
Pyroptosis is a novel inflammatory form of regulated cell death (RCD), characterized by cell swelling, membrane rupture, and pro-inflammatory effects. It is recognized as a potent inflammatory response required for maintaining organismal homeostasis. However, excessive and persistent pyroptosis contributes to severe inflammatory responses and accelerates the progression of numerous inflammation-related disorders. In pyroptosis, activated inflammasomes cleave gasdermins (GSDMs) and generate membrane holes, releasing interleukin (IL)-1β/18, ultimately causing pyroptotic cell death. Mechanistically, pyroptosis is categorized into caspase-1-mediated classical pyroptotic pathway and caspase-4/5/11-mediated non-classical pyroptotic pathway. Renal fibrosis is a kidney disease characterized by the loss of structural and functional units, the proliferation of fibroblasts and myofibroblasts, and extracellular matrix (ECM) accumulation, which leads to interstitial fibrosis of the kidney tubules. Histologically, renal fibrosis is the terminal stage of chronic inflammatory kidney disease. Although there is a multitude of newly discovered information regarding pyroptosis, the regulatory roles of pyroptosis involved in renal fibrosis still need to be fully comprehended, and how to improve clinical outcomes remains obscure. Hence, this review systematically summarizes the novel findings regarding the role of pyroptosis in the pathogenesis of renal fibrosis and discusses potential biomarkers and drugs for anti-fibrotic therapeutic strategies.
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Affiliation(s)
- Ya Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Haibo Lei
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Wenyou Zhang
- Department of Pharmacy, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Qichang Xing
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Renzhu Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Shiwei Wu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Zheng Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Qingzi Yan
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Wencan Li
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Xiang Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China.
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China.
| | - Yixiang Hu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China.
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China.
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Rex DAB, Keshava Prasad TS, Kandasamy RK. Revisiting Regulated Cell Death Responses in Viral Infections. Int J Mol Sci 2022; 23:ijms23137023. [PMID: 35806033 PMCID: PMC9266763 DOI: 10.3390/ijms23137023] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/07/2023] Open
Abstract
The fate of a viral infection in the host begins with various types of cellular responses, such as abortive, productive, latent, and destructive infections. Apoptosis, necroptosis, and pyroptosis are the three major types of regulated cell death mechanisms that play critical roles in viral infection response. Cell shrinkage, nuclear condensation, bleb formation, and retained membrane integrity are all signs of osmotic imbalance-driven cytoplasmic swelling and early membrane damage in necroptosis and pyroptosis. Caspase-driven apoptotic cell demise is considered in many circumstances as an anti-inflammatory, and some pathogens hijack the cell death signaling routes to initiate a targeted attack against the host. In this review, the selected mechanisms by which viruses interfere with cell death were discussed in-depth and were illustrated by compiling the general principles and cellular signaling mechanisms of virus–host-specific molecule interactions.
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Affiliation(s)
| | - Thottethodi Subrahmanya Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, India
- Correspondence: (T.S.K.P.); (R.K.K.)
| | - Richard K. Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7491 Trondheim, Norway
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O Box 505055, United Arab Emirates
- Correspondence: (T.S.K.P.); (R.K.K.)
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