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Liu Y, Li X, Sun T, Li T, Li Q. Pyroptosis in myocardial ischemia/reperfusion and its therapeutic implications. Eur J Pharmacol 2024; 971:176464. [PMID: 38461908 DOI: 10.1016/j.ejphar.2024.176464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/17/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
Ischemic heart disease, a prevalent cardiovascular disease with global significance, is associated with substantial morbidity. Timely and successful reperfusion is crucial for reducing infarct size and enhancing clinical outcomes. However, reperfusion may induce additional myocardium injury, manifesting as myocardial ischemia/reperfusion (MI/R) injury. Pyroptosis is a regulated cell death pathway, the signaling pathway of which is activated during MI/R injury. In this process, the inflammasomes are triggered, initiating the cleavage of gasdermin proteins and pro-interleukins, which results in the formation of membrane pores and the maturation and secretion of inflammatory cytokines. Numerous preclinical evidence underscores the pivotal role of pyroptosis in MI/R injury. Inhibiting pyroptosis is cardioprotective against MI/R injury. Although certain agents exhibiting promise in preclinical studies for attenuating MI/R injury through inhibiting pyroptosis have been identified, the suitability of these compounds for clinical trials remains untested. This review comprehensively summarizes the recent developments in this field, with a specific emphasis on the impact of pyroptosis on MI/R injury. Deciphering these findings not only sheds light on new disease mechanisms but also paves the way for innovative treatments. And then the exploration of the latest advances in compounds that inhibit pyroptosis in MI/R is discussed, which aims to provide insights into potential therapeutic strategies and identify avenues for future research in the pursuit of effective clinical interventions.
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Affiliation(s)
- Yin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Xi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Tingting Sun
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Tao Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China; Laboratory of Mitochondria and Metabolism, West China Hospital, Sichuan University, Chengdu, China.
| | - Qian Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
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Liu T, Ma Z, Liu L, Pei Y, Wu Q, Xu S, Liu Y, Ding N, Guan Y, Zhang Y, Chen X. Conditioned medium from human dental pulp stem cells treats spinal cord injury by inhibiting microglial pyroptosis. Neural Regen Res 2024; 19:1105-1111. [PMID: 37862215 PMCID: PMC10749599 DOI: 10.4103/1673-5374.385309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 05/05/2023] [Accepted: 07/12/2023] [Indexed: 10/22/2023] Open
Abstract
Human dental pulp stem cell transplantation has been shown to be an effective therapeutic strategy for spinal cord injury. However, whether the human dental pulp stem cell secretome can contribute to functional recovery after spinal cord injury remains unclear. In the present study, we established a rat model of spinal cord injury based on impact injury from a dropped weight and then intraperitoneally injected the rats with conditioned medium from human dental pulp stem cells. We found that the conditioned medium effectively promoted the recovery of sensory and motor functions in rats with spinal cord injury, decreased expression of the microglial pyroptosis markers NLRP3, GSDMD, caspase-1, and interleukin-1β, promoted axonal and myelin regeneration, and inhibited the formation of glial scars. In addition, in a lipopolysaccharide-induced BV2 microglia model, conditioned medium from human dental pulp stem cells protected cells from pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway. These results indicate that conditioned medium from human dental pulp stem cells can reduce microglial pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway, thereby promoting the recovery of neurological function after spinal cord injury. Therefore, conditioned medium from human dental pulp stem cells may become an alternative therapy for spinal cord injury.
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Affiliation(s)
- Tao Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Ziqian Ma
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Liang Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yilun Pei
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Qichao Wu
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Songjie Xu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yadong Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Nan Ding
- Department of Stomatology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Neurological Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Yan Zhang
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xueming Chen
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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Mansoure AN, Elshal M, Helal MG. Renoprotective effect of diacetylrhein on diclofenac-induced acute kidney injury in rats via modulating Nrf2/NF-κB/NLRP3/ GSDMD signaling pathways. Food Chem Toxicol 2024; 187:114637. [PMID: 38582345 DOI: 10.1016/j.fct.2024.114637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/27/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Diclofenac (DF)-induced acute kidney injury (AKI) is characterized by glomerular dysfunction and acute tubular necrosis. Due to limited treatment approaches, effective and safe drug therapy to protect against such AKI is still needed. Diacetylrhein (DAR), an anthraquinone derivative, has different antioxidant and anti-inflammatory properties. Therefore, the aim of the current study was to investigate the renoprotective effect of DAR on DF-induced AKI while elucidating the potential underlying mechanism. Our results showed that DAR (50 and 100 mg/kg) markedly abrogated DF-induced kidney dysfunction decreasing SCr, BUN, serum NGAL, and serum KIM1 levels. Moreover, DAR treatment remarkably maintained renal redox balance and reduced the levels of pro-inflammatory biomarkers in the kidney. Mechanistically, DAR boosted Nrf2/HO-1 antioxidant and anti-inflammatory response in the kidney while suppressing renal TLR4/NF-κB and NLRP3/caspase-1 inflammatory signaling pathways. In addition, DAR markedly inhibited renal pyroptosis via targeting of GSDMD activation. Collectively, this study confirmed that the interplay between Nrf2/HO-1 and TLR4/NF-κB/NLRP3/Caspase-1 signaling pathways and pyroptotic cell death mediates DF-induced AKI and reported that DAR has a dose-dependent renoprotective effect on DF-induced AKI in rats. This effect is due to powerful antioxidant, anti-inflammatory, and anti-pyroptotic activities that could provide a promising treatment approach to protect against DF-induced AKI.
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Affiliation(s)
| | - Mahmoud Elshal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt.
| | - Manar G Helal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt
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Li Y, Lin Z, Yu J, Liu Y, Li S, Huang Y, Ayodele Olaolu O, Fu Q. Neutrophil accumulation raises defence against Streptococcus equi ssp. zooepidemicus in the absence of Gasdermin D. Int Immunopharmacol 2024; 131:111891. [PMID: 38498953 DOI: 10.1016/j.intimp.2024.111891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 03/20/2024]
Abstract
Streptococcus equi ssp. zooepidemicus (SEZ) predominantly acts as a zoonotic pathogen, capable of infecting a diverse range of animal species including human. Gasdermin D (GSDMD) exhibited comprehensive functions in host against different pathogenic microorganism. This study aimed to investigate the role of GSDMD in host against SEZ. Mice were administrated with SEZ via intranasal intubation for 24 h (3 × 106CFU), GSDMD protein expression significantly increased in the lung tissue of mice infected with SEZ. For further research on the role of GSDMD during SEZ infection, GSDMD-/- mice and WT mice were treated with SEZ via intranasal intubation for 24 h (3 × 106CFU). GSDMD-/- mice showed less severe lung tissue due to fewer bacteria colonization. Numerous neutrophils were recruited into lung tissues in GSDMD-/- mice, related to the release of CXCL1 and CXCL2 regulated by p65 phosphorylation. In further study, neutrophils of WT and GSDMD-/- mice were isolated and treated with SEZ (multiplicity of infection, MOI = 10, 4 h). The absence of GSDMD alleviated the death of neutrophils, in addition, GSDMD deficiency could promote translocation of p65 from the cytoplasm into the nucleus in neutrophil, which may contribute to the release of IL-1β and TNF-α. This study demonstrated a novel function of GSDMD in host immune response to SEZ invading, indicating that GSDMD deficiency ameliorated SEZ infection through enhancing neutrophil accumulation into infected site, and activating NF-κB pathway in neutrophil to release cytokines against SEZ. Our study suggested that inhibition of host GSDMD may be an effective method against SEZ.
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Affiliation(s)
- Yajuan Li
- School of Life Science and Engineering, Foshan University, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Guangdong, China
| | - Zihua Lin
- School of Life Science and Engineering, Foshan University, Guangdong, China
| | - Jingyu Yu
- School of Life Science and Engineering, Foshan University, Guangdong, China
| | - Yuxuan Liu
- School of Life Science and Engineering, Foshan University, Guangdong, China
| | - Shun Li
- School of Life Science and Engineering, Foshan University, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Guangdong, China
| | - Yunfei Huang
- School of Life Science and Engineering, Foshan University, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Guangdong, China
| | - Oladejo Ayodele Olaolu
- Department of Animal Health Technology, Oyo State College of Agriculture and Technolog Igboor, Igboora, Nigeria
| | - Qiang Fu
- School of Life Science and Engineering, Foshan University, Guangdong, China; Foshan University Veterinary Teaching Hospital, Foshan University, Guangdong, China.
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Fu Q, Zhang YB, Shi CX, Jiang M, Lu K, Fu ZH, Ruan JP, Wu J, Gu XP. GSDMD/Drp1 signaling pathway mediates hippocampal synaptic damage and neural oscillation abnormalities in a mouse model of sepsis-associated encephalopathy. J Neuroinflammation 2024; 21:96. [PMID: 38627764 PMCID: PMC11020266 DOI: 10.1186/s12974-024-03084-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 03/30/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Gasdermin D (GSDMD)-mediated pyroptotic cell death is implicated in the pathogenesis of cognitive deficits in sepsis-associated encephalopathy (SAE), yet the underlying mechanisms remain largely unclear. Dynamin-related protein 1 (Drp1) facilitates mitochondrial fission and ensures quality control to maintain cellular homeostasis during infection. This study aimed to investigate the potential role of the GSDMD/Drp1 signaling pathway in cognitive impairments in a mouse model of SAE. METHODS C57BL/6 male mice were subjected to cecal ligation and puncture (CLP) to establish an animal model of SAE. In the interventional study, mice were treated with the GSDMD inhibitor necrosulfonamide (NSA) or the Drp1 inhibitor mitochondrial division inhibitor-1 (Mdivi-1). Surviving mice underwent behavioral tests, and hippocampal tissues were harvested for histological analysis and biochemical assays at corresponding time points. Haematoxylin-eosin staining and TUNEL assays were used to evaluate neuronal damage. Golgi staining was used to detect synaptic dendritic spine density. Additionally, transmission electron microscopy was performed to assess mitochondrial and synaptic morphology in the hippocampus. Local field potential recordings were conducted to detect network oscillations in the hippocampus. RESULTS CLP induced the activation of GSDMD, an upregulation of Drp1, leading to associated mitochondrial impairment, neuroinflammation, as well as neuronal and synaptic damage. Consequently, these effects resulted in a reduction in neural oscillations in the hippocampus and significant learning and memory deficits in the mice. Notably, treatment with NSA or Mdivi-1 effectively prevented these GSDMD-mediated abnormalities. CONCLUSIONS Our data indicate that the GSDMD/Drp1 signaling pathway is involved in cognitive deficits in a mouse model of SAE. Inhibiting GSDMD or Drp1 emerges as a potential therapeutic strategy to alleviate the observed synaptic damages and network oscillations abnormalities in the hippocampus of SAE mice.
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Affiliation(s)
- Qun Fu
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China
| | - Yi-Bao Zhang
- Department of Anesthesiology, Henan Provincial Chest Hospital, Zhengzhou University, 1 Weiwu Road, Zhengzhou, 450000, China
| | - Chang-Xi Shi
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China
| | - Ming Jiang
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China
| | - Kai Lu
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China
| | - Zi-Hui Fu
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China
| | - Jia-Ping Ruan
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China.
| | - Jing Wu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210008, China.
| | - Xiao-Ping Gu
- Department of Anesthesiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, China.
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Zhang X, Zhang Y, Wang B, Xie C, Wang J, Fang R, Dong H, Fan G, Wang M, He Y, Shen C, Duan Y, Zhao J, Liu Z, Li Q, Ma Y, Yu M, Wang J, Fei J, Xiao L, Huang F. Pyroptosis-mediator GSDMD promotes Parkinson's disease pathology via microglial activation and dopaminergic neuronal death. Brain Behav Immun 2024; 119:129-145. [PMID: 38552923 DOI: 10.1016/j.bbi.2024.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/02/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024] Open
Abstract
GSDMD-mediated pyroptosis occurs in the nigrostriatal pathway in Parkinson's disease animals, yet the role of GSDMD in neuroinflammation and death of dopaminergic neurons in Parkinson's disease remains elusive. Here, our in vivo and in vitro studies demonstrated that GSDMD, as a pyroptosis executor, contributed to glial reaction and death of dopaminergic neurons across different Parkinson's disease models. The ablation of the Gsdmd attenuated Parkinson's disease damage by reducing dopaminergic neuronal death, microglial activation, and detrimental transformation. Disulfiram, an inhibitor blocking GSDMD pore formation, efficiently curtailed pyroptosis, thereby lessening the pathology of Parkinson's disease. Additionally, a modification in GSDMD was identified in the blood of Parkinson's disease patients in contrast to healthy subjects. Therefore, the detected alteration in GSDMD within the blood of Parkinson's disease patients and the protective impact of disulfiram could be promising for the diagnostic and therapeutic approaches against Parkinson's disease.
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Affiliation(s)
- Xiaoshuang Zhang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yunhe Zhang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Boya Wang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Chuantong Xie
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jinghui Wang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Rong Fang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Hongtian Dong
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Guangchun Fan
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Mengze Wang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yongtao He
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Chenye Shen
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yufei Duan
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jiayin Zhao
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Zhaolin Liu
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Qing Li
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yuanyuan Ma
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Mei Yu
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jian Wang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jian Fei
- School of Life Science and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Engineering Research Center for Model Organisms, Shanghai Model Organisms Center, INC., Pudong, Shanghai 201203, China.
| | - Lei Xiao
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.
| | - Fang Huang
- Department of Translational Neuroscience, Jing' an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.
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Wang J, Hou J, Peng C. Phospholipid transfer protein ameliorates sepsis-induced cardiac dysfunction through NLRP3 inflammasome inhibition. Open Med (Wars) 2024; 19:20240915. [PMID: 38584827 PMCID: PMC10996989 DOI: 10.1515/med-2024-0915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 04/09/2024] Open
Abstract
Cardiomyocyte pyroptosis is a primary contributor to sepsis-induced cardiac dysfunction (SICD). Recombinant phospholipid transfer protein (PLTP) have been demonstrated to possess anti-inflammatory and antiseptic properties. However, the effect of PLTP on SICD remains unknown. In this study, we established the in vivo and in vitro sepsis model with the recombinant PLTP treatment. The survival rates of mice, mouse cardiac function, cell viability, the protein level of proinflammatory cytokine, and lactate dehydrogenase level were evaluated. The cardiomyocyte pyroptotic changes were observed. The distribution of PLTP and NOD-like receptor thermal protein domain associated protein 3 (NLRP3) in mouse myocardial tissue and expression of PLTP, apoptosis associated speck like protein containing a CARD (ASC), NLRP3, caspase-1, interleukin (IL)-1β, and Gasdermin D (GSDMD) were detected. PLTP ameliorated the cecal ligation and puncture-induced mouse survival rate decrease and cardiac dysfunction, inhibited the IL-1β, IL-18, and tumor necrosis factor (TNF)-α release, and blocked the NLRP3 inflammasome/GSDMD signaling pathway in septic mice. In vitro, PLTP reversed the lipopolysaccharide-induced cardiomyocyte pyroptosis, expression of IL-1β, IL-6, TNF-α, and activation of the NLRP3 inflammasome/GSDMD signal pathway. Moreover, PLTP could bind to NLRP3 and negatively regulate the activity of the NLRP3 inflammasome/GSDMD signal pathway. This study demonstrated that PLTP can ameliorate SICD by inhibiting inflammatory responses and cardiomyocyte pyroptosis by blocking the activation of the NLRP3 inflammasome/GSDMD signaling pathway.
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Affiliation(s)
- Jian Wang
- Emergency and Intensive Care Medicine Center, Guang’an People’s Hospital, Guang’an city, Sichuan 638500, PR China
| | - Jing Hou
- Emergency and Intensive Care Medicine Center, Guang’an People’s Hospital, Guang’an city, Sichuan 638500, PR China
| | - Chaohua Peng
- Emergency and Intensive Care Medicine Center, Guang’an People’s Hospital, Guang’an city, Sichuan 638500, PR China
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Han W, Cui J, Sun G, Miao X, Pufang Z, Nannan L. Nano-sized microplastics exposure induces skin cell senescence via triggering the mitochondrial localization of GSDMD. Environ Pollut 2024; 349:123874. [PMID: 38552769 DOI: 10.1016/j.envpol.2024.123874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
Nano-sized microplastic pollution is distributed worldwide. Nano-sized microplastics can enter the blood through the digestive tract, and then transported to various tissues and organs of the body, resulting in a series of toxicological effects. In addition, nano-sized microplastics can penetrate the skin barrier. However, the toxicological effects of nano-sized microplastics on the skin are still not completely understood. Two skin cell lines were used as in vitro models to investigate the toxicological effects of nano-sized microplastics on skin cells and their potential molecular mechanisms. First, cellular behavioral research results showed that nano-sized microplastics can be internalized into skin cells in a time- and dose-dependent manner. Further experiments using western blotting, indirect immunofluorescence, and ELISA assays demonstrated that nano-sized microplastics cause an increase in skin cell inflammation levels. Additionally, our research showed that nano-sized microplastics caused skin cell senescence damage by evaluating aging-marker molecules such as p16 and p21. Subsequently, we studied the potential molecular mechanism by which nano-sized microplastics cause pathological skin injury and found that they induce mitochondrial oxidative stress, depolarize the mitochondrial membrane potential, and recruit GSDMD to the mitochondria. Subsequently, mtDNA enters the cytoplasm via GSDMD pores, which then activates the AIM2 Inflammasome. Ultimately, it causes a series of biochemical reactions such as inflammation and aging in cells. In an in vivo model, we tested the effect of nano-sized microplastics on skin regeneration and found that they acted as an inhibitor to skin regeneration and aggravated the inflammatory reaction of the skin. Overall, our results provide new evidence of the skin toxicity of nano-sized microplastics. This study provides a theoretical foundation for further research on the potential toxicological effects of nano-sized microplastics on the skin.
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Affiliation(s)
- Wang Han
- The First Department of Oral and Maxillofacial Surgery & Oral Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, China
| | - Jiayue Cui
- Histology and Embryology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Gao Sun
- The First Department of Oral and Maxillofacial Surgery & Oral Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, China
| | - Xiao Miao
- The First Department of Oral and Maxillofacial Surgery & Oral Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhang Pufang
- The First Department of Oral and Maxillofacial Surgery & Oral Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, China
| | - Li Nannan
- The First Department of Oral and Maxillofacial Surgery & Oral Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, China.
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9
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Xie Y, Wang Z, Song G, Ma H, Feng B. GSDMD induces hepatocyte pyroptosis to trigger alcoholic hepatitis through modulating mitochondrial dysfunction. Cell Div 2024; 19:10. [PMID: 38532477 DOI: 10.1186/s13008-024-00114-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Mechanisms and consequences of Gasdermin D (GSDMD) activation in alcoholic hepatitis (AH) are unclear. In the present study, we investigated whether GSDMD induces hepatocyte pyroptosis by regulating mitochondrial dysfunction in AH. RESULTS Liver damage in AH mice was assessed by HE staining, serum levels of AST, ALT, TC, and TG. The levels of IL-1β, IL-18, LDH, inflammasome-associated proteins and hepatocyte death were assessed to determine pyroptosis. Mitochondrial dysfunction was assessed through various parameters including mitochondrial DNA (mtDNA) levels, ROS generation, mitochondrial membrane potential, ATP contents, levels of mitochondrial function-related proteins and morphological changes of mitochondria. AH induced gasdermin D (GSDMD) activation, leading to increased protein expression of N-terminal GSDMD (GSDMD-N), NLRP3, and Caspase 11 in liver tissues. Downregulation of GSDMD alleviated alcohol-induced hepatocyte pyroptosis. Alcohol also causes mitochondrial dysfunction in hepatocytes in AH, which was improved by inhibiting GSDMD. Furthermore, enhancing mitochondrial function suppressed alcohol-induced hepatocyte pyroptosis. Further, knockdown of GSDMD or dynamin-related protein 1 (Drp1) improved AH-induced liver injury, accompanied by a decrease in hepatocyte pyroptosis. CONCLUSION GSDMD induces hepatocyte pyroptosis by modulating mitochondrial dysfunction during AH-induced inflammation and liver injury. These findings may pave the way to develop new therapeutic treatments for AH.
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Affiliation(s)
- Yandi Xie
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, No.11, Xizhimen South Street, Beijing, 100044, China.
| | - Zilong Wang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, No.11, Xizhimen South Street, Beijing, 100044, China
| | - Guangjun Song
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, No.11, Xizhimen South Street, Beijing, 100044, China
| | - Hui Ma
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, No.11, Xizhimen South Street, Beijing, 100044, China
| | - Bo Feng
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing International Cooperation Base for Science and Technology on NAFLD Diagnosis, No.11, Xizhimen South Street, Beijing, 100044, China
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Feng SH, Zhao B, Zhan X, Li RH, Yang Q, Wang SM, Li A. Quercetin-induced pyroptosis in colon cancer through NEK7-mediated NLRP3 inflammasome- GSDMD signaling pathway activation. Am J Cancer Res 2024; 14:934-958. [PMID: 38590424 PMCID: PMC10998754 DOI: 10.62347/mkan3550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/27/2024] [Indexed: 04/10/2024] Open
Abstract
Pyroptosis, a gasdermin-mediated lytic cell death, is a new hotspot topic in cancer research, and induction of tumor pyroptosis has emerged as a new target in cancer management. Quercetin (Que), a natural substance, demonstrates promising anticancer action. However, further information is required to fully comprehend the function and mechanism of Que in pyroptosis in colon cancer. This study revealed the underlying mechanism of Que-induced pyroptosis in colon cancer in vitro and in vivo. Que inhibited colon cancer cell growth through gasdermin D (GSDMD)-mediated pyroptosis. Depletion of GSDMD, rather than gasdermin E (GSDME), reversed the cytotoxic effects of Que on colon cancer cells. Que treatment upregulated NIMA-related kinase 7 (NEK7) protein expression, thus facilitating the assembly of the NLRP3 inflammasome and cleavage of GSDMD. NEK7 silencing resulted in colon cancer cell growth in vitro and in vivo. Mechanistically, NEK7 depression restrained the activation of the NLRP3 inflammasome-GSDMD pathway, thus attenuating pyroptosis triggered by Que in colon cancer cells. Furthermore, lower NEK7 and NLRP3 expression levels indicated colon cancer progression. Our results unveiled a novel pattern of anti-colon cancer activity of Que, and activation of NEK7-mediated pyroptosis is potentially a promising therapeutic target for colon cancer, which provides novel experimental proof for the clinical application of Que.
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Affiliation(s)
- Shi-Han Feng
- Department of Traditional Chinese Medicine, Yong Chuan Hospital of Chongqing Medical University, Chongqing Medical UniversityChongqing 402160, P. R. China
| | - Bin Zhao
- Department of Traditional Chinese Medicine, Yong Chuan Hospital of Chongqing Medical University, Chongqing Medical UniversityChongqing 402160, P. R. China
| | - Xue Zhan
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Rong-Heng Li
- Department of Integrated Traditional Chinese and Western Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical UniversityChongqing 400042, P. R. China
| | - Qian Yang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Shu-Mei Wang
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, College of Traditional Chinese Medicine, Chongqing Medical UniversityChongqing 400016, P. R. China
| | - Ao Li
- Department of Traditional Chinese Medicine, Yong Chuan Hospital of Chongqing Medical University, Chongqing Medical UniversityChongqing 402160, P. R. China
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11
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Mohamed AO, Abd-Elghaffar SK, Mousa RA, Kamel AA. Aloe vera gel confers therapeutic effect by reducing pyroptosis in ethanol-induced gastric ulcer rat model: Role of NLRP3/ GSDMD signaling pathway. Mol Biol Rep 2024; 51:401. [PMID: 38457071 PMCID: PMC10923956 DOI: 10.1007/s11033-024-09329-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/07/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Gastric ulcer (GU) is a common gastrointestinal tract illness. Aloe vera has anti-inflammatory, antioxidant, and healing characteristics. This research sought to explore the therapeutic impact of Aloe vera gel on ethanol-provoked GU in rats and to elucidate the underlying mechanisms involved. METHODS An ethanol-induced GU rat model was constructed using forty male Wistar rats distributed at random into four groups: control, ulcer, pantoprazole, and Aloe vera. Gross evaluation of the stomach, ulcer index (UI), inhibition index, and gastric pH estimation were analyzed. Gastric malondialdehyde (MDA) and reduced glutathione (GSH) were determined using the spectrophotometric method, and serum gastrin level was measured by an enzyme-linked immunosorbent assay. Gastric nucleotide-binding domain, leucine-rich repeat, and pyrin domain PYD containing protein 3 (NLRP3) and gasdermin D (GSDMD) mRNA expression levels were estimated by quantitative real-time PCR. Finally, the histopathological examination of the glandular part of stomach tissue was done. RESULTS The ulcer group revealed a significant increase in MDA, gastrin, NLRP3, and GSDMD and a decrease in gastric pH and GSH compared to the control group. Gross investigations of the ulcer group revealed a hemorrhagic lesion in the stomach and an increase in UI. Also, histopathological results for this group showed severe epithelial loss, haemorrhage, inflammatory cell infiltration, and blood vessel congestion. However, Aloe vera treatment improved the gross, biochemical, molecular, and histopathological alterations induced by ethanol when compared to the ulcer group. CONCLUSIONS Aloe vera exerted antiulcer activities through modulation of oxidant/antioxidant status, anti-secretory properties, and mitigation of pyroptosis.
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Affiliation(s)
- Amany O Mohamed
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Sary Kh Abd-Elghaffar
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
- School of Veterinary Medicine, Badr University, Assiut, Egypt
| | - Rehab A Mousa
- Department of Biochemistry, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Amira A Kamel
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut, Egypt.
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Al Mamun A, Shao C, Geng P, Wang S, Xiao J. The Mechanism of Pyroptosis and Its Application Prospect in Diabetic Wound Healing. J Inflamm Res 2024; 17:1481-1501. [PMID: 38463193 PMCID: PMC10924950 DOI: 10.2147/jir.s448693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/13/2024] [Indexed: 03/12/2024] Open
Abstract
Pyroptosis defines a form of pro-inflammatory-dependent programmed cell death triggered by gasdermin proteins, which creates cytoplasmic pores and promotes the activation and accumulation of immune cells by releasing several pro-inflammatory mediators and immunogenic substances upon cell rupture. Pyroptosis comprises canonical (mediated by Caspase-1) and non-canonical (mediated by Caspase-4/5/11) molecular signaling pathways. Numerous studies have explored the contributory roles of inflammasome and pyroptosis in the progression of multiple pathological conditions such as tumors, nerve injury, inflammatory diseases and metabolic disorders. Accumulating evidence indicates that the activation of the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome results in the activation of pyroptosis and inflammation. Current evidence suggests that pyroptosis-dependent cell death plays a progressive role in the development of diabetic complications including diabetic wound healing (DWH) and diabetic foot ulcers (DFUs). This review presents a brief overview of the molecular mechanisms underlying pyroptosis and addresses the current research on pyroptosis-dependent signaling pathways in the context of DWH. In this review, we also present some prospective therapeutic compounds/agents that can target pyroptotic signaling pathways, which may serve as new strategies for the effective treatment and management of diabetic wounds.
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Affiliation(s)
- Abdullah Al Mamun
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Chuxiao Shao
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Peiwu Geng
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Shuanghu Wang
- Central Laboratory of the Sixth Affiliated Hospital of Wenzhou Medical University, Lishui People's Hospital, Lishui City, Zhejiang, 323000, People's Republic of China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
- Department of Wound Healing, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
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Jiang L, Wang Z, Xu T, Zhang L. When pyro(ptosis) meets palm(itoylation). Cytokine Growth Factor Rev 2024:S1359-6101(24)00014-5. [PMID: 38472042 DOI: 10.1016/j.cytogfr.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024]
Abstract
Pyroptosis, a programmed cell death process, is vital for the immune response against microbial infections and internal danger signals. Recent studies have highlighted the importance of protein palmitoylation, a modification that involves attaching palmitate to cysteine residues, in regulating key proteins involved in pyroptosis. Palmitoylation of cGAS at residue C474 by ZDHHC18 affects its enzymatic activity and DNA binding ability. Similarly, ZDHHC9 promotes cGAS activity through palmitoylation at residues C404/405. NLRP3 palmitoylation at residue C844, mediated by ZDHHC12, impacts its stability and interactions with other proteins, crucial for activating the NLRP3 inflammasome and triggering inflammation. However, the role of ZDHHC5 in NLRP3 palmitoylation remains uncertain due to conflicting findings. Palmitoylation at C88/91 is essential for STING activation and induction of type I interferons. It modulates the formation of multimeric complexes and downstream signaling pathways. GSDMD palmitoylation at C191 is necessary for pore formation and membrane translocation, while GSDME palmitoylation at C407/408 is associated with drug-induced pyroptosis. Moreover, palmitoylation of NOD1 and NOD2 influences their membrane recruitment and immune signaling pathways in response to bacterial peptidoglycans, acting as upstream regulators of pyroptosis. This review summarizes the important roles for palmitoylation in regulating the function of key pyroptosis-related proteins, shedding light on the intricate mechanisms governing immune responses and inflammation.
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Affiliation(s)
- Lu Jiang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250013, China; Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Zirui Wang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250013, China; Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Ting Xu
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Leiliang Zhang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250013, China; Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China.
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14
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Sha X, Ye H, Wang X, Xu Z, Sun A, Xiao W, Zhang T, Yang S, Yang H. GSDMD mediated pyroptosis induced inflammation of Graves' orbitopathy via the NF-κB/ AIM2/ Caspase-1 pathway. Exp Eye Res 2024; 240:109812. [PMID: 38342335 DOI: 10.1016/j.exer.2024.109812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/28/2023] [Accepted: 01/28/2024] [Indexed: 02/13/2024]
Abstract
Gasdermin D (GSDMD) is a key executor which triggers pyroptosis as well as an attractive checkpoint in various inflammatory and autoimmune diseases but it has yet to prove its function in Graves'orbitopathy (GO). Our aim was to investigate GSDMD levels in orbital connective tissue and serum of GO patients and then assess the association between serum levels and patients' clinical activity score (CAS). Further, GSDMD-mediated pyroptosis and the underlying mechanism in inflammatory pathogenesis in the cultured orbital fibroblasts (OFs) of GO patients were examined. OFs were collected after tumor necrosis factor (TNF)-α or interferon (IFN)-γ treatment or combination treatment at different times, and the expression of GSDMD and related molecular mechanisms were analyzed. Then, we constructed the GSDMD knockout system with siRNA and the system was further exposed to the medium with or without IFN-γ and TNF-α for a specified time. Finally, we evaluated the production of interleukin (IL)-1β and IL-18. We found that serum GSDMD levels were elevated and positively correlated with the CAS in GO patients. Meanwhile, the expression of GSDMD and N-terminal domain (NT-GSDMD) in orbital connective tissue of GO patients was augmented. Also, increased expression of GSDMD and related pyroptosis factors was observed in vitro model of GO. We further demonstrated that GSDMD-mediated pyroptosis induced inflammation via the nuclear factor kB (NF-κB)/absent in melanoma-2 (AIM-2)/caspase-1 pathway. In addition, blocking GSDMD suppressed proinflammatory cytokine production in GO. We concluded that GSDMD may be a biomarker as well as a potential target for the evaluation and treatment of inflammation related with GO.
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Affiliation(s)
- Xiaotong Sha
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Huijing Ye
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
| | - Xing Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Zhihui Xu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Anqi Sun
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Wei Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Te Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Shenglan Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China
| | - Huasheng Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
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Wang H, Zhu S, Zhou Z, Wang Z, Zhuang W, Xue D, Lu Z, Zheng Q, Ding L, Ren L, Luo W, Wang R, Ge G, Xia L, Li G, Wu H. TR4 worsen urosepsis by regulating GSDMD. Eur J Med Res 2024; 29:151. [PMID: 38429762 PMCID: PMC10908015 DOI: 10.1186/s40001-024-01742-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Urosepsis is a life-threatening organ disease in which pathogenic microorganisms in the urine enter the blood through the vessels, causing an imbalance in the immune response to infection. The aim of this study was to elucidate the role of testicular orphan receptor 4 (TR4) in urosepsis. METHODS The role of TR4 in the progression and prognosis of urosepsis was confirmed by analyzing data from online databases and clinical human samples. To mimic urosepsis, we injected E. coli bacteria into the renal pelvis of mice to create a urosepsis model. Hematoxylin and eosin staining was used to observe histopathological changes in urosepsis. The effects of the upregulation or downregulation of TR4 on macrophage pyroptosis were verified in vitro. Chromatin immunoprecipitation assay was used to verify the effect of TR4 on Gasdermin D (GSDMD) transcription. RESULTS TR4 was more highly expressed in the nonsurviving group than in the surviving group. Furthermore, overexpressing TR4 promoted inflammatory cytokine expression, and knocking down TR4 attenuated inflammatory cytokine expression. Mechanistically, TR4 promoted pyroptosis by regulating the expression of GSDMD in urosepsis. Furthermore, we also found that TR4 knockdown protected mice from urosepsis induced by the E. coli. CONCLUSIONS TR4 functions as a key regulator of urosepsis by mediating pyroptosis, which regulates GSDMD expression. Targeting TR4 may be a potential strategy for urosepsis treatment.
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Affiliation(s)
- Huan Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Shibin Zhu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zhenwei Zhou
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zhenghui Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Wei Zhuang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Dingwei Xue
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Zeyi Lu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Qiming Zheng
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Lifeng Ding
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Liangliang Ren
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Wenqing Luo
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Ruyue Wang
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Guangju Ge
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Liqun Xia
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
| | - Haiyang Wu
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
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Zhang WW, Wang SS, Ding YD, Wu XY, Chen T, Gao Y, Jin SW, Zhang PH. Cardiac Resolvin D2 ameliorates sepsis-induced cardiomyopathy via inhibiting Caspase-11/ GSDMD dependent pyroptosis. Free Radic Biol Med 2024; 215:64-76. [PMID: 38437927 DOI: 10.1016/j.freeradbiomed.2024.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/20/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Sepsis-induced cardiomyopathy (SICM) is common complication in septic patients with a high mortality and is characterized by an abnormal inflammation response, which was precisely regulated by endogenous specialized pro-resolving mediators (SPMs). However, the metabolic changes of cardiac SPMs during SICM and the roles of SPMs subset in the development of SICM remain unknown. METHODS In this work, the SPMs concentration was assessed using ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) of SICM mice and SICM patients. The cardiac function was measured by echocardiography after the treatment of a SPMs subset, termed Resolvin D2 (RvD2). Caspase-11-/-, GSDMD-/- and double deficient (Caspase-11-/-GSDMD-/-) mice were used to clarify the mechanisms of RvD2 in SICM. RESULTS We found that endogenous cardiac SPMs were disorders and RvD2 was decreased significantly and correlated with left ventricular ejection fraction (LVEF) and β-BNP, cTnT in Lipopolysaccharide/Cecum ligation and puncture (CLP) induced SICM models. Treatment with RvD2 attenuated lethality, cardiac dysfunction and cardiomyocytes death during SICM. Mechanistically, RvD2 alleviated SICM via inhibiting Caspase-11/GSDMD-mediated cardiomyocytes pyroptosis. Finally, the plasma levels of RvD2 were also decreased and significantly correlated with IL-1β, β-BNP, cTnT and LVEF in patients with SICM. Of note, plasma RvD2 level is indicator of SICM patients from healthy controls or sepsis patients. CONCLUSION These findings suggest that decreased cardiac RvD2 may involve in the pathogenesis of SICM. In addition, treatment with RvD2 represents a novel therapeutic strategy for SICM by inhibiting cardiomyocytes pyroptosis.
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Affiliation(s)
- Wen-Wu Zhang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Shun-Shun Wang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Yang-Dong Ding
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Xin-Yi Wu
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Ting Chen
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Ye Gao
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Sheng-Wei Jin
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Zhejiang, China; Provincial Key Laboratory of Precision Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China.
| | - Pu-Hong Zhang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, 325027, China; Department of Critical Care, The First Affiliated Hospital of Wannan Medical College, Anhui, 241004, China.
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Shen S, Guo H, Li Y, Zhang L, Tang Y, Li H, Li X, Wang PH, Yu XF, Wei W. SARS-CoV-2 and oncolytic EV-D68-encoded proteases differentially regulate pyroptosis. J Virol 2024; 98:e0190923. [PMID: 38289118 PMCID: PMC10878271 DOI: 10.1128/jvi.01909-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/03/2024] [Indexed: 02/21/2024] Open
Abstract
Pyroptosis, a pro-inflammatory programmed cell death, has been implicated in the pathogenesis of coronavirus disease 2019 and other viral diseases. Gasdermin family proteins (GSDMs), including GSDMD and GSDME, are key regulators of pyroptotic cell death. However, the mechanisms by which virus infection modulates pyroptosis remain unclear. Here, we employed a mCherry-GSDMD fluorescent reporter assay to screen for viral proteins that impede the localization and function of GSDMD in living cells. Our data indicated that the main protease NSP5 of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) blocked GSDMD-mediated pyroptosis via cleaving residues Q29 and Q193 of GSDMD. While another SARS-CoV-2 protease, NSP3, cleaved GSDME at residue G370 but activated GSDME-mediated pyroptosis. Interestingly, respiratory enterovirus EV-D68-encoded proteases 3C and 2A also exhibit similar differential regulation on the functions of GSDMs by inactivating GSDMD but initiating GSDME-mediated pyroptosis. EV-D68 infection exerted oncolytic effects on human cancer cells by inducing pyroptotic cell death. Our findings provide insights into how respiratory viruses manipulate host cell pyroptosis and suggest potential targets for antiviral therapy as well as cancer treatment.IMPORTANCEPyroptosis plays a crucial role in the pathogenesis of coronavirus disease 2019, and comprehending its function may facilitate the development of novel therapeutic strategies. This study aims to explore how viral-encoded proteases modulate pyroptosis. We investigated the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and respiratory enterovirus D68 (EV-D68) proteases on host cell pyroptosis. We found that SARS-CoV-2-encoded proteases NSP5 and NSP3 inactivate gasdermin D (GSDMD) but initiate gasdermin E (GSDME)-mediated pyroptosis, respectively. We also discovered that another respiratory virus EV-D68 encodes two distinct proteases 2A and 3C that selectively trigger GSDME-mediated pyroptosis while suppressing the function of GSDMD. Based on these findings, we further noted that EV-D68 infection triggers pyroptosis and produces oncolytic effects in human carcinoma cells. Our study provides new insights into the molecular mechanisms underlying virus-modulated pyroptosis and identifies potential targets for the development of antiviral and cancer therapeutics.
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Affiliation(s)
- Siyu Shen
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Haoran Guo
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Yan Li
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Lili Zhang
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Yubin Tang
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Huili Li
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Xiaohan Li
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
| | - Pei-Hui Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiao-Fang Yu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Cancer Center, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Wei
- Institute of Virology and AIDS Research, First Hospital, Jilin University, Changchun, Jilin, China
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
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Mohamed AAR, Abd-Elhakim YM, Noreldin AE, Khamis T, Elhamouly M, Akela MA, Alotaibi BS, Alosaimi ME, Khalil SS, El-Gamal M, Dahran N, El-Shetry ES. Understanding fenpropathrin-induced pulmonary toxicity: What apoptosis, inflammation, and pyreptosis reveal analyzing cross-links at the molecular, immunohistochemical, and immunofluorescent levels. Food Chem Toxicol 2024; 186:114520. [PMID: 38369055 DOI: 10.1016/j.fct.2024.114520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Fenpropathrin (FN), a pyrethroid has been linked to potential pulmonary toxic effects to humans via incident direct or indirect ingestion. Thus, we aimed to the investigate the underlying mechanisms of lung toxicity upon exposure to FN in the rat model, besides studying whether curcumin (CCM) and curcumin-loaded chitosan nanoformulation (CCM-Chs) can mitigate FN-induced lung damage. Six distinct groups, namely, control, CCM, CCM-Chs, FN, and CCM + FN, CCM-Chs + FN were assigned separately. The inflammatory, apoptotic, and oxidative stress states, histological, immunohistochemical, and immunofluorescence examination of different markers within the pulmonary tissue were applied. The results revealed that the FN-induced tissue damage might be caused by the oxidative stress induction and depressed antioxidant glutathione system in the lungs of rats. Furthermore, FN upregulated the expression of genes related to inflammation, and pyroptosis, and elevated the immunoreactivity of Caspase-3, tumor necrosis factor-α, vimentin, and 4-Hydroxynonenal in pulmonary tissues of FN-exposed rats compared to the control. CCM and CCM-Chs mitigated the FN-induced disturbances, while remarkably, CCM-Chs showed better potency than CCM in mitigating the FN-induced toxicity. In conclusion, this study shows the prominent preventive ability of CCM-Chs more than CCM in combatting the pulmonary toxicity induced by FN. This may be beneficial in developing therapeutic and preventive strategies against FN-induced pulmonary toxicity.
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Affiliation(s)
- Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Yasmina M Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt
| | - Tarek Khamis
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, 44511, Zagazig, Egypt; Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, 44519, Zagazig, Egypt
| | - Moustafa Elhamouly
- Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Mohamed A Akela
- Department of Biology, College of Sciences and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Badriyah S Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, PO Box 84428, Riyadh 1671, Saudi Arabia.
| | - Manal E Alosaimi
- Department of Basic Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Samah S Khalil
- Department of Biochemistry, Drug Information Centre, Zagazig University Hospitals, Zagazig University, Egypt
| | - Mohamed El-Gamal
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt; Department of Biological Sciences, Faculty of Science, New Mansoura University, New Mansoura City, Egypt
| | - Naief Dahran
- Department of Anatomy, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Eman S El-Shetry
- Department of Anatomy, College of Medicine, University of Hail, Hail, Kingdom of Saudi Arabia; Department of Human Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig, 44511, Egypt
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Chen Y, Zeng D, Wei G, Liao Z, Liang R, Huang X, Lu WW, Chen Y. Pyroptosis in Osteoarthritis: Molecular Mechanisms and Therapeutic Implications. J Inflamm Res 2024; 17:791-803. [PMID: 38348279 PMCID: PMC10860821 DOI: 10.2147/jir.s445573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/20/2024] [Indexed: 02/15/2024] Open
Abstract
Osteoarthritis (OA) is a chronic disease that causes pain and functional impairment by affecting joint tissue. Its global impact is noteworthy, causing significant economic losses and property damage. Despite extensive research, the underlying pathogenesis of OA remain an area of ongoing investigation. It has recently been discovered that the OA progression is significantly influenced by pyroptosis. Pyroptosis is a complex process that involves three pathways culminating in the assembly of Gasdermin-D (GSDMD)-N-terminal (GSDMD-NT) into pores through aggregation on the plasma membrane. The aggregation of GSDMD-NT proteins stimulates the release of inflammatory mediators, such as Interleukin-1β (IL-1β), Interleukin-18 (IL-18), and Matrix Metallopeptidase 13 (MMP13), ultimately leading to cellular lysis. The pyroptosis process in specific cells, including synovial macrophages, fibroblast-like synoviocytes (FLS), chondrocytes, and subchondral osteoblasts, contributs factor to the development of OA. Currently, the specific cells that undergo pyroptosis first are not yet fully understood, and it remains unknown whether pyroptosis in one cell can trigger the same process in other cells. Therefore, targeting pyroptosis could potentially offer a novel treatment approach for OA patients. We present a comprehensive analysis of the molecular mechanisms and key features of pyroptosis. We also outline the current research progress on various aspects, including synovial tissue, articular cartilage, extracellular matrix (ECM), and subchondral bone, with a focus on pyroptosis. The aim is to provide theoretical references for the effective management of OA.
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Affiliation(s)
- Yeping Chen
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Daofu Zeng
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Guizheng Wei
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Zhidong Liao
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Rongyuan Liang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiajie Huang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - William W Lu
- Department of Orthopedics and Traumatology, the University of Hong Kong, Hong Kong, People’s Republic of China
| | - Yan Chen
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
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Wang Y, Zhao H, Yang J, Cao Z, Hao L, Gu Z. Exposure of nonylphenol promoted NLRP3 inflammasome and GSDMD-mediated pyroptosis in allergic rhinitis mice. Food Chem Toxicol 2024; 184:114435. [PMID: 38176579 DOI: 10.1016/j.fct.2024.114435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/21/2023] [Accepted: 01/01/2024] [Indexed: 01/06/2024]
Abstract
Studies have confirmed that the intake of nonylphenol (NP) can increase nasal symptoms, eosinophils, and Th2 responses in allergic rhinitis (AR) mice. However, the molecular mechanism of NP exacerbating AR inflammatory response remains unclear. Recent data suggest that NOD-like receptor 3 (NLRP3) inflammasome-mediated pyroptosis contributes to AR development. To investigate the effects of NP on NLRP3 inflammasomes and pyroptosis, an AR mouse model induced by ovalbumin (OVA) was established and treated with 0.5 mg/kg/d NP every other day. Nasal symptoms were evaluated after the final OVA instillation. Mast cells and Eosinophils in the nasal mucosa were observed using toluidine blue and Sirius red staining, respectively. The levels of NLRP3, Caspase-1, ASC, phospho-nuclear factor kappa B (NF-κB) p65, interleukin (IL)-6, TNF-α, IL-18, GSDMD and IL-1β, were assessed by using immunohistochemical staining, ELISA, quantitative real-time PCR, or Western blot. Exposure to NP aggravates AR symptoms and promotes eosinophils, mast cells, and inflammatory factors release, along with significantly increased of NF-κB, NLRP3, Caspase-1, ASC, and GSDMD. It was concluded that NP exposure promotes NLRP3 inflammasome and GSDMD-mediated pyroptosis of the nasal mucosa. Targeted of NLRP3 and GSDMD-mediated pyroptosis may be a novel therapeutic strategy for AR exposed to NP.
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Affiliation(s)
- Yunxiu Wang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - He Zhao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Jing Yang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Zhiwei Cao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, PR China.
| | - Zhaowei Gu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China.
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Zhao X, Chen C, Han W, Liang M, Cheng Y, Chen Y, Pang D, Lei H, Feng X, Cao S, Li Z, Wang J, Zhang Y, Yang B. EEBR induces Caspase-1-dependent pyroptosis through the NF-κB/NLRP3 signalling cascade in non-small cell lung cancer. J Cell Mol Med 2024; 28:e18094. [PMID: 38214430 PMCID: PMC10844718 DOI: 10.1111/jcmm.18094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/13/2024] Open
Abstract
Lung cancer is a leading cause of cancer-related deaths worldwide. Recent studies have identified pyroptosis, a type of programmed cell death, as a critical process in the development and progression of lung cancer. In this study, we investigated the effect of EEBR, a new compound synthesized by our team, on pyroptosis in non-small cell lung cancer cells (NSCLC) and the underlying molecular mechanisms. Our results demonstrated that EEBR significantly reduced the proliferation and metastasis of NSCLC cells in vitro. Moreover, EEBR-induced pyroptosis in NSCLC cells, as evidenced by cell membrane rupture, the release of cytokines such as interleukin-18 and interleukin-1 beta and the promotion of Gasdermin D cleavage in a Caspase-1-dependent manner. Furthermore, EEBR promoted the nuclear translocation of NF-κB and upregulated the protein level of NLRP3. Subsequent studies revealed that EEBR-induced pyroptosis was suppressed by the inhibition of NF-κB. Finally, EEBR effectively suppressed the growth of lung cancer xenograft tumours by promoting NSCLC pyroptosis in animal models. Taken together, our findings suggest that EEBR induces Caspase-1-dependent pyroptosis through the NF-κB/NLRP3 signalling cascade in NSCLC, highlighting its potential as a candidate drug for NSCLC treatment.
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Affiliation(s)
- Xin Zhao
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD)HarbinChina
| | - Chao Chen
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Weina Han
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of PharmacyHarbin Medical UniversityHarbinHeilongjiangChina
| | - Min Liang
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Yuanyuan Cheng
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Yingjie Chen
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Defeng Pang
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Haoqi Lei
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Xuefei Feng
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Shifeng Cao
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
| | - Zhixiong Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of PharmacyHarbin Medical UniversityHarbinHeilongjiangChina
| | - Jinhui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of PharmacyHarbin Medical UniversityHarbinHeilongjiangChina
| | - Yan Zhang
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD)HarbinChina
| | - Baofeng Yang
- Department of Pharmacology (State‐Province Key Laboratories of Biomedicine‐Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of PharmacyHarbin Medical UniversityHarbinChina
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD)HarbinChina
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone, 2019RU070Chinese Academy of Medical SciencesHarbinChina
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Wang D, Shi Z, Liu C, Wang Q, Liu H, He J, Zhao H, Zhang C. E. globulus leaf EO exhibits anti-inflammatory effects by regulating GSDMD-mediated pyroptosis, thereby alleviating neurological impairment and neuroinflammation in experimental stroke mice. J Ethnopharmacol 2024; 319:117367. [PMID: 38380569 DOI: 10.1016/j.jep.2023.117367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 02/22/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aromatic and medicinal plants continue to be a major component of alternative and traditional medicine in the developing countries. Eucalyptus globulus (Labill.) is being employed to cultivation and production in China. However, few studies have reported the chemical composition and anti-inflammatory activity of Eucalyptus globulus (Labill.) leaf essential oil (E. globulus leaf EO) extracted from Eucalyptus globulus. AIM OF THE STUDY This study aimed to assess the composition of E. globulus leaf EO and identify its bacteriostatic action as well as anti-inflammatory activity. Importantly, we evaluated the effect of E. globulus leaf EO on neurological impairment and neuroinflammation in experimental stroke mice. MATERIALS AND METHODS Gas Chromatography-Mass Spectrometer (GC-MS) analyses was employed to evaluate the chemical components of E. globulus leaf EO, and the relative content of each component was determined by area normalization method. The antimicrobial activity of E. globulus leaf EO was determined by Oxford cup method and microbroth dilution assay. Cytotoxic activity of E. globulus leaf EO on THP-1 cells or BV2 cells in vitro was determined by CCK8 assay. In addition, the lipopolysaccharide (LPS)/ATP-induced inflammation model in THP-1 cells or BV2 cells were established, and the relative expression of TNF-α, IL-1β, MCP-1and IL-6 were confirmed by RT-PCR. Furthermore, the expression of protein GSDMD, IL-lβ, NLRP3 and NFκB signaling pathway were assessed by immunoblotting. In vivo,the experimental stroke model constructed by middle cerebral artery occlusion/reperfusion (MCAO/R) in mice was employed and subsequently treated with E. globulus leaf EO (50,100 mg/kg, subcutaneous injection) for 3 days to assess neurological impairment and neuroinflammation. Behavioral and neuronal damage were assessed using grip strength test, rod trarod test, and Nissl staining. Pro-inflammatory factors in serum or ischemic brain tissue was detected by ELISA kits. RESULTS GC-MS analyses revealed that the major compound in E. globulus leaf EO was eudesmol (71.967%). E. globulus leaf EO has antimicrobial activity against Staphylococcus aureus (gram positive bacteria, MIC = 0.0625 mg/mL), Escherichia coli (gram negative bacteria, MIC = 1 mg/mL), and Candida albicans (MIC = 4 mg/mL). E. globulus leaf EO (0.5312, 1.0625, and 2.15 mg/mL) significantly decreased the expression of inflammation-related genes, including IL-1β, TNF-α, MCP-1, and IL-6. Furthermore, reduced levels of TLR4, Myd88, phosphorylated NF-κB P65, and IκBα were found in the E. globulus leaf EO group for BV2 cells (1.025, and 2.125 mg/mL). In addition, the expression levels of GSDMD, NLRP3, IL-1β and AIM2 were significantly decreased in the E. globulus leaf EO group when compared with the LPS -stimulated group, regulating GSDMD-mediated pyroptosis. In vivo, E. globulus leaf EO improved neurological functional deficits, inhibited excessive activation of microglia, and reduced the secretion of pro-inflammatory factors IL-1β, TNF-α in the ischemic tissue and serum after MCAO/R. CONCLUSION E. globulus leaf EO has strong antibacterial and anti-inflammatory activity, which has been implicated in blocking GSDMD-mediated pyroptosis. Moreover, E. globulus leaf EO could exert neuroprotective effect on cerebral ischemia-reperfusion injury.
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Affiliation(s)
- Dexiao Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Zhengmei Shi
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Chaojie Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Qian Wang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Heng Liu
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China
| | - Junli He
- The First Affiliated Hospital of Dali University, Dali, Yunnan, PR China
| | - Hairong Zhao
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
| | - Chenggui Zhang
- Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, College of Pharmacy, Dali University, Dali, Yunnan, PR China; National-Local Joint Engineering Research Center of Entomoceutics, Dali, PR China.
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Chen Z, Chen C, Lai K, Wu C, Wu F, Chen Z, Ye K, Xie J, Ma H, Chen H, Wang Y, Xu Y. GSDMD and GSDME synergy in the transition of acute kidney injury to chronic kidney disease. Nephrol Dial Transplant 2024:gfae014. [PMID: 38244230 DOI: 10.1093/ndt/gfae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND AND HYPOTHESIS Acute kidney injury (AKI) could progress to chronic kidney disease (CKD) and the AKI-CKD transition has major clinical significance. A growing body of evidence has unveiled the role of pyroptosis in kidney injury. We postulate that GSDMD and GSDME exert cumulative effects on the AKI-CKD transition by modulating different cellular responses. METHODS We established an AKI-CKD transition model induced by folic acid in wildtype (WT), Gsdmd-/-, Gsdme-/-, and Gsdmd-/-Gsdme-/- mice. Tubular injury, renal fibrosis and inflammatory responses were evaluated. In vitro studies were conducted to investigate the interplay among tubular cells, neutrophils, and macrophages. RESULTS Double deletion of Gsdmd and Gsdme conferred heightened protection against AKI, mitigating inflammatory responses, including the formation of neutrophil extracellular traps (NETs), macrophage polarization and differentiation, and ultimately renal fibrosis, compared with wildtype mice and mice with single deletion of either Gsdmd or Gsdme. Gsdme, but not Gsdmd deficiency, shielded tubular cells from pyroptosis. GSDME-dependent tubular cell death stimulated NETs formation and prompted macrophage polarization towards a pro-inflammatory phenotype. Gsdmd deficiency suppressed NETs formation and subsequently hindered NETs-induced macrophage-to-myofibroblast transition (MMT). CONCLUSION GSDMD and GSDME collaborate to contribute to AKI and subsequent renal fibrosis induced by folic acid. Synchronous inhibition of GSDMD and GSDME could be an innovative therapeutic strategy for mitigating the AKI-CKD transition.
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Affiliation(s)
- Zhengyue Chen
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Caiming Chen
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Kunmei Lai
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Chengkun Wu
- School of Medicine, Nankai University, Tianjin, China
| | - Fan Wu
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Zhimin Chen
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Keng Ye
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jingzhi Xie
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Huabin Ma
- Central Laboratory, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Hong Chen
- Department of Pathology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yujia Wang
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yanfang Xu
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Chen Z, Shang Y, Ou Y, Shen C, Cao Y, Hu H, Yang R, Liu T, Liu Q, Song M, Zong D, Xiang X, Peng Y, Ouyang R. Obstructive Sleep Apnea Plasma-Derived Exosomes Mediate Cognitive Impairment Through Hippocampal Neuronal Cell Pyroptosis. Am J Geriatr Psychiatry 2024:S1064-7481(24)00017-4. [PMID: 38290937 DOI: 10.1016/j.jagp.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/25/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024]
Abstract
OBJECTIVE Obstructive sleep apnea (OSA) is associated with impaired cognitive function. Exosomes are secreted by most cells and play a role in OSA-associated cognitive impairment (CI). The aim of this study was to investigate whether OSA plasma-derived exosomes cause CI through hippocampal neuronal cell pyroptosis, and to identify exosomal miRNAs in OSA plasma-derived. MATERIALS AND METHODS Plasma-derived exosomes were isolated from patients with severe OSA and healthy comparisons. Daytime sleepiness and cognitive function were assessed using the Epworth Sleepiness Scale (ESS) and the Beijing version of the Montreal Cognitive Assessment Scale (MoCA). Exosomes were coincubated with mouse hippocampal neurons (HT22) cells to evaluate the effect of exosomes on pyroptosis and inflammation of HT22 cells. Meanwhile, exosomes were injected into C57BL/6 male mice via caudal vein, and then morris water maze was used to evaluate the spatial learning and memory ability of the mice, so as to observe the effects of exosomes on the cognitive function of the mice. Western blot and qRT-PCR were used to detect the expressions of Gasdermin D (GSDMD) and Caspase-1 to evaluate the pyroptosis level. The expression of IL-1β, IL-6, IL-18 and TNF-α was detected by qRT-PCR to assess the level of inflammation. Correlations of GSDMD and Caspase-1 expression with clinical parameters were evaluated using Spearman's rank correlation analysis. In addition, plasma exosome miRNAs profile was identified, followed by Gene Ontology (GO) term and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. RESULTS Compared to healthy comparisons, body mass index (BMI), apnea-hypopnea index (AHI), oxygen desaturation index (ODI), and ESS scores were increased in patients with severe OSA, while lowest oxygen saturation during sleep (LSaO2), mean oxygen saturation during sleep (MSaO2) and MoCA scores were decreased. Compared to the PBS group (NC) and the healthy comparison plasma-derived exosomes (NC-EXOS), the levels of GSDMD and Caspase-1 and IL-1β, IL-6, IL-18 and TNF-α were increased significantly in the severe OSA plasma-derived exosomes (OSA-EXOS) coincubated with HT22 cells. Compared to the NC and NC-EXOS groups, the learning and memory ability of mice injected with OSA-EXOS was decreased, and the expression of GSDMD and Caspase-1 in hippocampus were significantly increased, along with the levels of IL-1β, IL-6, IL-18 and TNF-α. Spearman correlation analysis found that clinical AHI in HCs and severe OSA patients was positively correlated with GSDMD and Caspase-1 in HT22 cells from NC-EXOS and OSA-EXOS groups, while negatively correlated with clinical MoCA. At the same time, clinical MoCA in HCs and severe OSA patients was negatively correlated with GSDMD and Caspase-1 in HT22 cells from NC-EXOS and OSA-EXOS groups. A unique exosomal miRNAs profile was identified in OSA-EXOS group compared to the NC-EXOS group, in which 28 miRNAs were regulated and several KEGG and GO pathways were identified. CONCLUSIONS The results of this study show a hypothesis that plasma-derived exosomes from severe OSA patients promote pyroptosis and increased expression of inflammatory factors in vivo and in vitro, and lead to impaired cognitive function in mice, suggesting that OSA-EXOS can mediate CI through pyroptosis of hippocampal neurons. In addition, exosome cargo from OSA-EXOS showed a unique miRNAs profile compared to NC-EXOS, suggesting that plasma exosome associated miRNAs may reflect the differential profile of OSA related diseases, such as CI.
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Affiliation(s)
- Zhifeng Chen
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Yulin Shang
- Ophthalmology and Otorhinolaryngology (YS), Zigui County Traditional Chinese Medicine Hospital, Zigui, China
| | - Yanru Ou
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Chong Shen
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Ying Cao
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Hui Hu
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Ruibing Yang
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Ting Liu
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Qingqing Liu
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Min Song
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Dandan Zong
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China
| | - Xudong Xiang
- Department of Emergency (XX), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yating Peng
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China.
| | - Ruoyun Ouyang
- Department of Respiratory Medicine (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Research Unit of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China; Clinical Medical Research Center for Pulmonary (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Critical Care Medicine in Hunan Province, Changsha, Hunan, China; Diagnosis and Treatment Center of Respiratory Disease (ZC, YO, CS, YC, HH, RY, TL, QL, MS, DZ, YP, RO), Central South University, Changsha, Hunan, China.
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Zhong Y, Huang T, Li X, Luo P, Zhang B. GSDMD suppresses keratinocyte differentiation by inhibiting FLG expression and attenuating KCTD6-mediated HDAC1 degradation in atopic dermatitis. PeerJ 2024; 12:e16768. [PMID: 38250727 PMCID: PMC10798152 DOI: 10.7717/peerj.16768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Abstract
Background Recent studies have shown that activated pyroptosis in atopic dermatitis (AD) switches inflammatory processes and causes abnormal cornification and epidermal barrier dysfunction. Little research has focused on the interaction mechanism between pyroptosis-related genes and human keratinocyte differentiation. Methods The AD dataset from the Gene Expression Omnibus (GEO) was used to identify differently expressed pyroptosis-related genes (DEPRGs). Hub genes were identified and an enrichment analysis was performed to select epithelial development-related genes. Lesions of AD patients were detected via immunohistochemistry (IHC) to verify the hub gene. Human keratinocytes cell lines, gasdermin D (GSDMD) overexpression, Caspase1 siRNA, Histone Deacetylase1 (HDAC1) siRNA, and HDAC1 overexpression vectors were used for gain-and-loss-of-function experiments. Regulation of cornification protein was determined by qPCR, western blot (WB), immunofluorescence (IF), dual-luciferase reporter assay, co-immunoprecipitation (Co-IP), and chromatin immunoprecipitation (ChIP). Results A total of 27 DEPRGs were identified between either atopic dermatitis non-lesional skin (ANL) and healthy control (HC) or atopic dermatitis lesional skin (AL) and HC. The enrichment analysis showed that these DEPRGs were primarily enriched in the inflammatory response and keratinocytes differentiation. Of the 10 hub genes identified via the protein-protein interaction network, only GSDMD was statistically and negatively associated with the expression of epithelial tight junction core genes. Furthermore, GSDMD was upregulated in AD lesions and inhibited human keratinocyte differentiation by reducing filaggrin (FLG) expression. Mechanistically, GSDMD activated by Caspase1 reduced FLG expression via HDAC1. HDAC1 decreased FLG expression by reducing histone acetylation at the FLG promoter. In addition, GSDMD blocked the interaction of Potassium Channel Tetramerization Domain Containing 6 (KCTD6) and HDAC1 to prohibit HDAC1 degradation. Conclusion This study revealed that GSDMD was upregulated in AD lesions and that GSDMD regulated keratinocytes via epigenetic modification, which might provide potential therapeutic targets for AD.
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Affiliation(s)
- Yi Zhong
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Taoyuan Huang
- Department of Dermatology, Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Xiaoli Li
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Peiyi Luo
- Department of Dermatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China
| | - Bingjun Zhang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhou J, Zhang Y, Zeng L, Wang X, Xiang W, Su P. Cadmium exposure induces pyroptosis of TM4 cells through oxidative stress damage and inflammasome activation. Ecotoxicol Environ Saf 2024; 270:115930. [PMID: 38184979 DOI: 10.1016/j.ecoenv.2024.115930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/24/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
Cadmium (Cd) is a harmful metal that seriously affects the male reproductive system, but the mechanism of how Cd exposure damages Sertoli cells is not fully understood. This study used TM4 cells to explore the mechanism of Cd damage to Sertoli cells. We found that Cd was concentration- and time-dependent on TM4 cell viability. Cd exposure increased intracellular reactive oxygen species (ROS) levels, lactate dehydrogenase (LDH), and Interleukin-1β (IL-1β) release in TM4 cells, decreased mitochondrial function, and increased pyroptosis. N-acetylcysteine (NAC), MCC950 and BAY 11-7082 (BAY) alleviate the release of IL-1β and LDH induced by Cd. NAC reduced Cd induced increases in ROS, NLRP3, Caspase-1, Heme oxygenase-1(HO-1), superoxide dismutase (SOD2), and increased mitochondrial function. The activation of GSDMD is the main causes of pyroptosis, and NAC significantly inhibit its activation and formation. Our results suggest that Cd exposure induces a toxic mechanism of GSDMD-mediated pyroptosis in TM4 cells by increasing ROS levels and activating the inflammasome.
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Affiliation(s)
- Jinzhao Zhou
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yanwei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ling Zeng
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan, China
| | - Xiaofei Wang
- The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Wuhan HuaKe Reproductive Hospital, Wuhan, China.
| | - Ping Su
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Wuhan HuaKe Reproductive Hospital, Wuhan, China.
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Yang Y, Chen HL, Wu SF, Bao W. CHMP4B and VSP4A reverse GSDMD-mediated pyroptosis by cell membrane remodeling in endometrial carcinoma. Biochim Biophys Acta Gen Subj 2024; 1868:130497. [PMID: 37931722 DOI: 10.1016/j.bbagen.2023.130497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND In advanced and recurrent endometrial carcinoma (EC), the current state of immuno- or targeted therapy remains in the clinical research phase. Our study aimed to explore the role of the ESCRT machinery in maintaining cell membrane integrity and reversing pyroptotic cell death. METHODS Immunohistochemistry, western blotting, and co-immunoprecipitation were performed to determine the expression and relationship between GSDMD, CHMP4B, and VPS4A. We employed techniques such as FITC Annexin V/propidium iodide staining, Ca2+ fluorescence intensity, IL-1β enzyme-linked immunosorbent assay, and lactate dehydrogenase release assay to detect pyroptosis in endometrial cancer cells. Plasma membrane perforations and CHMP4B/VPS4A puncta were observed through electron and fluorescence confocal microscopy. RESULTS We showed that GSDMD, CHMP4B, and VPS4A were differentially expressed in the pyroptotic EC xenograft mouse model group, as well as high, moderate, and mild expression in EC cells treated with LPS and nigericin compared to endometrial epithelial cells. Co-IP confirmed the interaction between GSDMD, CHMP4B, and VPS4A. We found that GSDMD knockdown reduced PI-positive cells, Ca2+ efflux, IL-1β, and LDH release, while CHMP4B and VPS4A depletion enhanced these indicators in HEC1A and AN3CA cells. Electron microscopy showed membrane perforations correspondingly decreased with inactivated GSDMD and increased or decreased after CHMP4B and VPS4A depletion or overexpression in EC cells. Fluorescence confocal microscopy detected CHMP4B protein puncta associated with VPS4A at the injured plasma membrane in GSDMDNT cells. CONCLUSIONS We preliminary evidenced that CHMP4B and VPS4A reverses GSDMD-mediated pyroptosis by facilitating cell membrane remodeling in endometrial carcinoma. Targeting CHMP4B related proteins may promote pyroptosis in endometrial tumors.
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Affiliation(s)
- Ye Yang
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Hongkou, Shanghai 200080, PR China
| | - Hai-Lian Chen
- Surgical Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Hongkou, Shanghai 200080, PR China
| | - Su Fang Wu
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Hongkou, Shanghai 200080, PR China.
| | - Wei Bao
- Obstetrics and Gynecology Department, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, Hongkou, Shanghai 200080, PR China.
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Yu F, Zhang Z, Leng Y, Chen AF. O-GlcNAc modification of GSDMD attenuates LPS-induced endothelial cells pyroptosis. Inflamm Res 2024; 73:5-17. [PMID: 37962578 PMCID: PMC10776498 DOI: 10.1007/s00011-023-01812-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE Increased O-linked β-N-acetylglucosamine (O-GlcNAc) stimulation has been reported to protect against sepsis associated mortality and cardiovascular derangement. Previous studies, including our own research, have indicated that gasdermin-D(GSDMD)-mediated endothelial cells pyroptosis contributes to sepsis-associated endothelial injury. This study explored the functions and mechanisms of O-GlcNAc modification on lipopolysaccharide (LPS)-induced pyroptosis and its effects on the function of GSDMD. METHODS A LPS-induced septic mouse model administrated with O-GlcNAcase (OGA) inhibitor thiamet-G (TMG) was used to assess the effects of O-GlcNAcylation on sepsis-associated vascular dysfunction and pyroptosis. We conducted experiments on human umbilical vein endothelial cells (HUVECs) by challenging them with LPS and TMG to investigate the impact of O-GlcNAcylation on endothelial cell pyroptosis and implications of GSDMD. Additionally, we identified potential O-GlcNAcylation sites in GSDMD by utilizing four public O-GlcNAcylation site prediction database, and these sites were ultimately established through gene mutation. RESULTS Septic mice with increased O-GlcNAc stimulation exhibited reduced endothelial injury, GSDMD cleavage (a marker of pyroptosis). O-GlcNAc modification of GSDMD mitigates LPS-induced pyroptosis in endothelial cells by preventing its interaction with caspase-11 (a human homologous of caspases-4/5). We also identified GSDMD Serine 338 (S338) as a novel site of O-GlcNAc modification, leading to decreased association with caspases-4 in HEK293T cells. CONCLUSIONS Our findings identified a novel post-translational modification of GSDMD and elucidated the O-GlcNAcylation of GSDMD inhibits LPS-induced endothelial injury, suggesting that O-GlcNAc modification-based treatments could serve as potential interventions for sepsis-associated vascular endothelial injury.
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Affiliation(s)
- Fan Yu
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China
- Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhen Zhang
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yiping Leng
- The Affiliated Changsha Central Hospital, Research Center for Phase I Clinical Trials, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Alex F Chen
- Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China.
- Department of Cardiology, Institute for Cardiovascular Development and Regenerative Medicine, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
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Xu S, Ge Y, Wang X, Yin W, Zhu X, Wang J, Qiao S. Circ-USP9X interacts with EIF4A3 to promote endothelial cell pyroptosis by regulating GSDMD stability in atherosclerosis. Clin Exp Hypertens 2023; 45:2186319. [PMID: 36890708 DOI: 10.1080/10641963.2023.2186319] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Endothelial pyroptosis is a pathological mechanism of atherosclerosis (AS). Circular RNAs (circRNAs) are vital in AS progression by regulating endothelial cell functions. The study aimed to explore whether circ-USP9× regulated pyroptosis of endothelial cell to involve in AS development and the molecular mechanism. Pyroptosis was determined using lactate dehydrogenase (LDH) assay, enzyme linked immunosorbent assay (ELISA), flow cytometry, propidium iodide (PI) staining assay, and western blot. The mechanism of circ-USP9× was determined using RNA pull-down and RNA binding protein immunoprecipitation (RIP) assays. Results showed that circ-USP9× was upregulated in AS and oxidized low-density lipoprotein (ox-LDL)-treated human umbilical vein endothelial cells (HUVECs). Knockdown of circ-USP9× suppressed ox-LDL induced pyroptosis of HUVECs. Mechanically, circ-USP9× could bind to EIF4A3 in the cytoplasm. Moreover, EIF4A3 was bound to GSDMD and further affects GSDMD stability. Overexpression of EIF4A3 rescued cell pyroptosis induced by circ-USP9× depletion. In short, circ-USP9× interacted with EIF4A3 to enhance GSDMD stability, thus further promoting ox-LDL-induced pyroptosis of HUVECs. These findings suggested that circ-USP9× participates in AS progression and may be a potential therapeutic target for AS.
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Affiliation(s)
- Shengkai Xu
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Yishan Ge
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Xuebin Wang
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Wei Yin
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Xiaoqing Zhu
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Jie Wang
- Department of Cardiology, Suzhou Science and Technology City Hospital, Suzhou, China
| | - Shigang Qiao
- Institute of clinical medicine, Suzhou Science and Technology City Hospital, Suzhou, China
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Bandharam N, Lockey RF, Kolliputi N. Pyroptosis Inhibition in Disease Treatment: Opportunities and Challenges. Cell Biochem Biophys 2023; 81:615-619. [PMID: 37782424 DOI: 10.1007/s12013-023-01181-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/17/2023] [Indexed: 10/03/2023]
Abstract
Programmed cell death (PCD) is at the center of immune responses, with different types of PCD occurring based on bodily conditions at a given moment. The main three types of PCD include pyroptosis, necroptosis, and apoptosis. Both pyroptosis and necroptosis induce an inflammatory response while apoptosis avoids eliciting an inflammatory reaction. Recently, pyroptosis has come to the forefront of immunology research due to tremendous potential that has been revealed surrounding the regulators of pyroptosis. In addition to previously known regulators of pyroptosis (ZBP1 and NLRP3 genes), a family of proteins called Gasdermin has been discovered. Specifically, Gasdermin D (GSDMD), when cleaved, participates in the onset of pyroptosis of inflammatory diseases. The N-terminal cleaved portion of the molecule causes cellular membrane openings releasing interleukin-18 and IL-1β, inducing pyroptosis. It is hypothesized that the inhibition of GSDMD using drugs such as Dimethyl Fumarate (DMF) and Disulfiram may halt the progression of certain inflammatory diseases including Multiple Sclerosis (MS), autoimmune encephalitis etc. While there is not yet a concrete treatment for pyroptic cell death in inflammatory disease using GSDMD inhibition, there is ample evidence to suggest that there may be success in future studies and therapeutic applications of GSDMD.
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Affiliation(s)
- Navya Bandharam
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Richard F Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA.
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Deng S, Pan Y, An N, Chen F, Chen H, Wang H, Xu X, Liu R, Yang L, Wang X, Du X, Zhang Q. Downregulation of RCN1 promotes pyroptosis in acute myeloid leukemia cells. Mol Oncol 2023; 17:2584-2602. [PMID: 37746742 DOI: 10.1002/1878-0261.13521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/26/2023] Open
Abstract
Reticulocalbin-1 (RCN1) is expressed aberrantly and at a high level in various tumors, including acute myeloid leukemia (AML), yet its impact on AML remains unclear. In this study, we demonstrate that RCN1 knockdown significantly suppresses the viability of bone marrow mononuclear cells (BMMNCs) from AML patients but does not affect the viability of granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral blood stem cells (PBSCs) from healthy donors in vitro. Downregulation of RCN1 also reduces the viability of AML cell lines. Further studies showed that the RCN1 knockdown upregulates type I interferon (IFN-1) expression and promotes AML cell pyroptosis through caspase-1 and gasdermin D (GSDMD) signaling. Deletion of the mouse Rcn1 gene inhibits the viability of mouse AML cell lines but not the hematopoiesis of mouse bone marrow. In addition, RCN1 downregulation in human AML cells significantly inhibited tumor growth in the NSG mouse xenograft model. Taken together, our results suggest that RCN1 may be a potential target for AML therapy.
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Affiliation(s)
- Sisi Deng
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Yuming Pan
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Na An
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Fengyi Chen
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
- Department of Physiology, School of Basic Medical Sciences, International Cancer Center, Shenzhen University Health Sciences Center, China
| | - Huan Chen
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Heng Wang
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
- Department of Hematology, Shenzhen Longhua District Central Hospital, China
| | - Xiaojing Xu
- China National GeneBank, BGI-Shenzhen, China
| | - Rui Liu
- China National GeneBank, BGI-Shenzhen, China
| | - Linlin Yang
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Xiaomei Wang
- Department of Physiology, School of Basic Medical Sciences, International Cancer Center, Shenzhen University Health Sciences Center, China
| | - Xin Du
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
| | - Qiaoxia Zhang
- Shenzhen Bone Marrow Transplantation Public Service Platform, Shenzhen Institute of Hematology, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen University Health Sciences Center, China
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Chen C, Cheng Y, Lei H, Feng X, Zhang H, Qi L, Wan J, Xu H, Zhao X, Zhang Y, Yang B. SHP2 potentiates anti-PD-1 effectiveness through intervening cell pyroptosis resistance in triple-negative breast cancer. Biomed Pharmacother 2023; 168:115797. [PMID: 37913735 DOI: 10.1016/j.biopha.2023.115797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/14/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023] Open
Abstract
Triple negative breast cancer (TNBC) presents a formidable challenge due to the lack of effective treatment modalities. Immunotherapy stands as a promising therapeutic approach; however, the emergence of drug resistance mechanisms within tumor cells, particularly those targeting apoptosis and pyroptosis, has hampered its clinical efficacy. SHP2 is intricately involved in diverse physiological processes, including immune cell proliferation, infiltration, and tumor progression. Nevertheless, the precise contribution of SHP2 to tumor cell pyroptosis resistance remains inadequately understood. Herein, we demonstrate that SHP2 inhibition hampers the proliferative, migratory, and invasive capabilities of TNBC, accompanied by noticeable alterations in cellular membrane architecture. Mechanistically, we provide evidence that SHP2 depletion triggers the activation of Caspase-1 and GSDMD, resulting in GSDMD-dependent release of LDH, IL-1β, and IL-18. Furthermore, computational analyses and co-localization investigations substantiate the hypothesis that SHP2 may hinder pyroptosis through direct binding to JNK, thereby impeding JNK phosphorylation. Our cellular experiments further corroborate these findings by demonstrating that JNK inhibition rescues pyroptosis induced by SHP2 knockdown. Strikingly, in vivo experiments validate the suppressive impact of SHP2 knockdown on tumor progression via enhanced JNK phosphorylation. Additionally, SHP2 knockdown augments tumor sensitivity to anti-PD-1 therapy, thus reinforcing the pro-pyroptotic effects and inhibiting tumor growth. In summary, our findings elucidate the mechanism by which SHP2 governs TNBC pyroptosis, underscoring the potential of SHP2 inhibition to suppress cell pyroptosis resistance and its utility as an adjunctive agent for tumor immunotherapy.
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Affiliation(s)
- Chao Chen
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Ximin street, Chaoyang District, Changchun, Jilin 130021, China
| | - Yuanyuan Cheng
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Haoqi Lei
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Xuefei Feng
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Hongxia Zhang
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Lingling Qi
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Jufeng Wan
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Haiying Xu
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China
| | - Xin Zhao
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China.
| | - Yan Zhang
- Department of Pharmacology, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, 157 Baojian Rd, Nangang District, Harbin, Heilongjiang 150081, China.
| | - Baofeng Yang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, 126 Ximin street, Chaoyang District, Changchun, Jilin 130021, China.
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Lu C, Liu J, Escames G, Yang Y, Wu X, Liu Q, Chen J, Song Y, Wang Z, Deng C, Acuña-Castroviejo D, Wang X. PIK3CG Regulates NLRP3/ GSDMD-Mediated Pyroptosis in Septic Myocardial Injury. Inflammation 2023; 46:2416-2432. [PMID: 37676465 DOI: 10.1007/s10753-023-01889-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/28/2023] [Accepted: 08/13/2023] [Indexed: 09/08/2023]
Abstract
Cardiac insufficiency is a common complication of sepsis with high mortality. Inflammatory programmed cell death (pyroptosis) executed by NLRP3/gasdermin D (GSDMD) is intrinsically correlated with septic myocardial injury. However, it remains unclear whether PIK3CG, a classical target of septic myocardial injury, can affect pyroptosis by regulating NLRP3/GSDMD signaling. In this study, a series of experimental methods were used to observe the effect of PIK3CG on NLRP3/GSDMD-mediated pyroptosis in Cecal ligation and puncture (CLP)-injured BALB/c mice and lipopolysaccharide (LPS)-injured HL-1 cardiomyocytes. Transcriptome analysis of CLP-injured myocardium revealed a regulatory relationship between PIK3CG and NLRP3/GSDMD signaling, which was further verified in clinical myocardium samples from GEO database. Both in vitro and in vivo experiments showed that the protein and mRNA levels of PIK3CG, GSDMD, NLRP3, IL-1β, Caspase-1, and IL-18 were significantly increased. Importantly, PIK3CG siRNA was found to improve these changes, while PIK3CG overexpression worsened them. Notably, pyroptosis induced by CLP in the myocardium was reversed by the PIK3CG inhibitor (AS-604850). In conclusion, PIK3CG activates NLRP3 inflammasomes, thus promoting pyroptosis in septic myocardial injury.
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Affiliation(s)
- Chenxi Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Jie Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Germaine Escames
- Biomedical Research Center, Health Sciences Technology Park, University of Granada, Avda. del Conocimiento s/n, Ibs. Granada and CIBERfes, UGC of Clinical Laboratories, Universitu San Cecilio's Hospital, Granada, Spain
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Xue Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Qiong Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Junmin Chen
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
- Department of Cardiology, Affiliated Hospital, Yan'an University, 43 North Street, Yan'an, 716000, China
| | - Yanbin Song
- Department of Cardiology, Affiliated Hospital, Yan'an University, 43 North Street, Yan'an, 716000, China
| | - Zheng Wang
- Department of Cardiothoracic Surgery, Central Theater Command General Hospital of Chinese People's Liberation Army, 627 Wuluo Road, Wuhan, 430070, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China
| | - Darío Acuña-Castroviejo
- Biomedical Research Center, Health Sciences Technology Park, University of Granada, Avda. del Conocimiento s/n, Ibs. Granada and CIBERfes, UGC of Clinical Laboratories, Universitu San Cecilio's Hospital, Granada, Spain.
| | - Xue Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an 710061, China.
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Li T, Yang J, Tan A, Chen H. Irisin suppresses pancreatic β cell pyroptosis in T2DM by inhibiting the NLRP3- GSDMD pathway and activating the Nrf2-TrX/TXNIP signaling axis. Diabetol Metab Syndr 2023; 15:239. [PMID: 37993958 PMCID: PMC10664367 DOI: 10.1186/s13098-023-01216-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/11/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Irisin plays a key role in metabolic diseases, including type 2 diabetes mellitus (T2DM). However, the mechanism underlying the link between irisin and the development of T2DM, particularly in pancreatic islet β-cells, remains unknown. METHODS In vitro, Min6 cells were treated with high glucose (HG) to generate T2DM cell models. GSDMD-N staining, Western blotting assays, and ELISA were performed to measure the expression levels of GSDMD, caspase 1, IL-1β, and IL-18. Next, the NLRP3 stimulator, ATP, was used to assess the effect of irisin on NLRP3 inflammasome. To evaluate the function of the Nrf2-TrX/TXNIP signaling axis, the Nrf2 inhibitor ML385 was used. For in vivo assessment, we first established T2DM model mice. Then, hematoxylin and eosin (H&E) staining was performed to observe the islet morphology, and the immunofluorescence technique was used to examine the mass of α and β cells. To confirm the role of the Nrf2-TrX/TXNIP signaling axis, ML385 was injected into the mice. Immunofluorescence of Nrf2, caspase 1, and GSDMD was detected in the islet cells of the model mice to verify the results. RESULTS We found that irisin treatment significantly decreased the expression of GSDMD-N (P31) and cleaved caspase-1 (p20), decreased caspase1 activity, and inhibited the secretion of IL-1β and IL-18 in HG-treated Min6 cells. We also found that irisin inhibited oxidative stress and NLRP3 expression by activating the Nrf2-TrX/TXNIP signaling axis. Additionally, in the T2DM model mice, irisin enhanced the function of islet cells, decreased insulin resistance, and preserved the morphology of pancreatic islets. CONCLUSION We showed in this study that irisin can be used for treating pyroptosis in HG-induced islet β-cells and T2DM model mice. We also found that irisin inhibits pyroptosis and oxidative stress by inhibiting the NLRP3-GSDMD pathway and activating the Nrf2-TrX/TXNIP signaling axis.
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Affiliation(s)
- Tianrong Li
- Department of Geriatric Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Jingjing Yang
- Department of Geriatric Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Anjun Tan
- Department of Geriatric Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China.
| | - Hewen Chen
- Department of Geriatric Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
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Jin N, Wang B, Liu X, Yin C, Li X, Wang Z, Chen X, Liu Y, Bu W, Sun H. Mannose-doped metal-organic frameworks induce tumor cell pyroptosis via the PERK pathway. J Nanobiotechnology 2023; 21:426. [PMID: 37968665 PMCID: PMC10647064 DOI: 10.1186/s12951-023-02175-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/24/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND The implementation of pyroptosis exhibits significant potential as a tactic to enhance tumor immune microenvironments. Previous applications of pyroptosis inducers have encountered various limitations, such as the development of drug resistance, manifestation of toxic side effects, and a deficiency in targeting capabilities. As a result, there is a growing demand for tumor therapeutic molecules that can overcome these obstacles. Therefore, the objective of this study is to develop a multifunctional nanospheres that addresses these challenges by enabling high-precision targeting of tumor cells and inducing effective pyroptosis. RESULTS We prepared a mannose-modified MOF called mannose-doped Fe3O4@NH2-MIL-100 (M-FNM). M-FNM could enter CAL27 cells through MR-mediated endocytosis, which caused in a significant increase in the level of intracellular ROS. This increase subsequently triggered ER stress and activated the PERK-eIF2α-ATF4-CHOP signaling pathway. CHOP then mediated the downstream cascade of Caspase-1, inducing pyroptosis. In in vivo experiments, M-FNM demonstrated excellent targeting ability and exhibited anti-tumor effects. Additionally, M-FNM reshaped the immune microenvironment by promoting the infiltration of anti-tumor immune cells, primarily T lymphocytes. CONCLUSIONS M-FNM significantly decreased tumor growth. This novel approach to induce pyroptosis in tumor cells using M-FNM may offer new avenues for the development of effective immunotherapies against cancer.
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Affiliation(s)
- Nianqiang Jin
- Department of Oral Pathology, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, P. R. China
| | - Binhang Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xinyao Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- Sinochem Holdings Corporation Ltd., Beijing, 100031, P. R. China
- Sinochem Quanzhou Petrochemical Co., Ltd., Quanzhou, 362103, P. R. China
| | - Chengcheng Yin
- Department of Center Laboratory, School of Stomatology, China Medical University, Shenyang, 110001, P. R. China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, 110001, P. R. China
| | - Xing Li
- Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
| | - Zilin Wang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, changchun, 130021, P. R. China
- Department of Oromaxillofacial-Head & Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, 200011, P. R. China
| | - Xi Chen
- Department of Oral Pathology, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, P. R. China
| | - Yunling Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
| | - Wenhuan Bu
- Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China.
| | - Hongchen Sun
- Hospital of Stomatology, Jilin University, Changchun, 130021, P. R. China
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Miao R, Jiang C, Chang WY, Zhang H, An J, Ho F, Chen P, Zhang H, Junqueira C, Amgalan D, Liang FG, Zhang J, Evavold CL, Hafner-Bratkovič I, Zhang Z, Fontana P, Xia S, Waldeck-Weiermair M, Pan Y, Michel T, Bar-Peled L, Wu H, Kagan JC, Kitsis RN, Zhang P, Liu X, Lieberman J. Gasdermin D permeabilization of mitochondrial inner and outer membranes accelerates and enhances pyroptosis. Immunity 2023; 56:2523-2541.e8. [PMID: 37924812 PMCID: PMC10872579 DOI: 10.1016/j.immuni.2023.10.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 08/30/2023] [Accepted: 10/06/2023] [Indexed: 11/06/2023]
Abstract
Gasdermin D (GSDMD)-activated inflammatory cell death (pyroptosis) causes mitochondrial damage, but its underlying mechanism and functional consequences are largely unknown. Here, we show that the N-terminal pore-forming GSDMD fragment (GSDMD-NT) rapidly damaged both inner and outer mitochondrial membranes (OMMs) leading to reduced mitochondrial numbers, mitophagy, ROS, loss of transmembrane potential, attenuated oxidative phosphorylation (OXPHOS), and release of mitochondrial proteins and DNA from the matrix and intermembrane space. Mitochondrial damage occurred as soon as GSDMD was cleaved prior to plasma membrane damage. Mitochondrial damage was independent of the B-cell lymphoma 2 family and depended on GSDMD-NT binding to cardiolipin. Canonical and noncanonical inflammasome activation of mitochondrial damage, pyroptosis, and inflammatory cytokine release were suppressed by genetic ablation of cardiolipin synthase (Crls1) or the scramblase (Plscr3) that transfers cardiolipin to the OMM. Phospholipid scramblase-3 (PLSCR3) deficiency in a tumor compromised pyroptosis-triggered anti-tumor immunity. Thus, mitochondrial damage plays a critical role in pyroptosis.
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Affiliation(s)
- Rui Miao
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
| | - Cong Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China; Key Laboratory of RNA Science and Engineering, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200031, China
| | - Winston Y Chang
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Haiwei Zhang
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Jinsu An
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Felicia Ho
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Pengcheng Chen
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200031, China
| | - Han Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China; Key Laboratory of RNA Science and Engineering, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200031, China
| | - Caroline Junqueira
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA; Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG 30190-009, Brazil
| | - Dulguun Amgalan
- Departments of Medicine and Cell Biology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Felix G Liang
- Departments of Medicine and Cell Biology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Junbing Zhang
- Center for Cancer Research, Massachusetts General Hospital and Department of Medicine, Harvard Medical School, Boston, MA 02129, USA
| | - Charles L Evavold
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA 02139, USA
| | - Iva Hafner-Bratkovič
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Department of Synthetic Biology and Immunology, National Institute of Chemistry and EN-FIST Centre of Excellence and Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Zhibin Zhang
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA; Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Pietro Fontana
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Shiyu Xia
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Markus Waldeck-Weiermair
- Brigham and Women's Hospital, Department of Medicine, Cardiovascular Division, Harvard Medical School, Boston, MA 02115, USA
| | - Youdong Pan
- Department of Dermatology and Harvard Skin Disease Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Thomas Michel
- Brigham and Women's Hospital, Department of Medicine, Cardiovascular Division, Harvard Medical School, Boston, MA 02115, USA
| | - Liron Bar-Peled
- Center for Cancer Research, Massachusetts General Hospital and Department of Medicine, Harvard Medical School, Boston, MA 02129, USA
| | - Hao Wu
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Richard N Kitsis
- Departments of Medicine and Cell Biology, Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Peng Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China.
| | - Xing Liu
- Key Laboratory of RNA Science and Engineering, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Judy Lieberman
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
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Chhunchha B, Kumar R, Kubo E, Thakur P, Singh DP. Prdx6 Regulates Nlrp3 Inflammasome Activation-Driven Inflammatory Response in Lens Epithelial Cells. Int J Mol Sci 2023; 24:16276. [PMID: 38003466 PMCID: PMC10671722 DOI: 10.3390/ijms242216276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The continuum of antioxidant response dysregulation in aging/oxidative stress-driven Nlrp3 inflammasome activation-mediated inflammatory response is associated with age-related diseases. Peroxiredoxin (Prdx) 6 is a key antioxidant that provides cytoprotection by regulating redox homeostasis. Herein, using lens epithelial cells (LECs) derived from the targeted inactivation of Prdx6 gene and aging lenses, we present molecular evidence that Prdx6-deficiency causes oxidative-driven Nlrp3 inflammasome activation, resulting in pyroptosis in aging/redox active cells wherein Prdx6 availability offsets the inflammatory process. We observed that Prdx6-/- and aging LECs harboring accumulated reactive oxygen species (ROS) showed augmented activation of Nlrp3 and bioactive inflammatory components, like Caspase-1, IL-1β, ASC and Gasdermin-D. Similar to lipopolysaccharide treatment, oxidative exposure led to further ROS amplification with increased activation of the Nlrp3 inflammasome pathway. Mechanistically, we found that oxidative stress enhanced Kruppel-like factor 9 (Klf9) expression in aging/Prdx6-/- mLECs, leading to a Klf9-dependent increase in Nlrp3 transcription, while the elimination of ROS by the delivery of Prdx6 or by silencing Klf9 prevented the inflammatory response. Altogether, our data identify the biological significance of Prdx6 as an intrinsic checkpoint for regulating the cellular health of aging or redox active LECs and provide opportunities to develop antioxidant-based therapeutic(s) to prevent oxidative/aging-related diseases linked to aberrant Nlrp3 inflammasome activation.
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Affiliation(s)
- Bhavana Chhunchha
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.K.); (P.T.)
| | - Rakesh Kumar
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.K.); (P.T.)
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Kahoku 9200293, Ishikawa, Japan;
| | - Priyanka Thakur
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.K.); (P.T.)
| | - Dhirendra P. Singh
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.K.); (P.T.)
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Zhao S, Zhu Y, Liu H, He X, Xie J. System analysis based on the pyroptosis-related genes identifes GSDMD as a novel therapy target for skin cutaneous melanoma. J Transl Med 2023; 21:801. [PMID: 37950289 PMCID: PMC10636830 DOI: 10.1186/s12967-023-04513-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/08/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Skin cutaneous melanoma (SKCM) is the most aggressive skin cancer, accounting for more than 75% mortality rate of skin-related cancers. As a newly identified programmed cell death, pyroptosis has been found to be closely associated with tumor progression. Nevertheless, the prognostic significance of pyroptosis in SKCM remains elusive. METHODS A total of 469 SKCM samples and 812 normal samples were obtained from The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) databases. Firstly, differentially expressed pyroptosis-related genes (PRGs) between normal samples and SKCM samples were identified. Secondly, we established a prognostic model based on univariate Cox and LASSO Cox regression analyses, which was validated in the test cohort from GSE65904. Thirdly, a nomogram was used to predict the survival probability of SKCM patients. The R package "pRRophetic" was utilized to identify the drug sensitivity between the low- and high-risk groups. Tumor immune infiltration was evaluated using "immuneeconv" R package. Finally, the function of GSDMD and SB525334 was explored in A375 and A2058 cells. RESULTS Based on univariate Cox and LASSO regression analyses, we established a prognostic model with identified eight PRGs (AIM2, CASP3, GSDMA, GSDMC, GSDMD, IL18, NLRP3, and NOD2), which was validated in the test cohort. SKCM patients were divided into low- and high-risk groups based on the median of risk score. Kaplan-Meier survival analysis showed that high-risk patients had shorter overall survival than low-risk patients. Additionally, time-dependent ROC curves validated the accuracy of the risk model in predicting the prognosis of SKCM. More importantly, 4 small molecular compounds (SB525334, SR8278, Gemcitabine, AT13387) were identified, which might be potential drugs for patients in different risk groups. Finally, overexpression of GSDMD and SB525334 treatment inhibit the proliferation, migration, and invasion of SKCM cells. CONCLUSION In this study, we constructed a prognostic model based on PRGs and identified GSDMD as a potential therapeutic target, which provide new insights into SKCM treatment.
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Affiliation(s)
- Shixin Zhao
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yongkang Zhu
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Hengdeng Liu
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Xuefeng He
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Julin Xie
- Department of Burns, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China.
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.
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Hong W, Hu C, Wang C, Zhu B, Tian M, Qin H. Effects of amyloid β (Aβ)42 and Gasdermin D on the progression of Alzheimer's disease in vitro and in vivo through the regulation of astrocyte pyroptosis. Aging (Albany NY) 2023; 15:12209-12224. [PMID: 37921870 PMCID: PMC10683627 DOI: 10.18632/aging.205174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/26/2023] [Indexed: 11/05/2023]
Abstract
PURPOSE The study aimed to investigate whether astrocyte pyroptosis, and the subsequent neuroinflammatory response that exerts amyloid β (Aβ) neurotoxic effects, has an effect on endothelial cells, along with the underlying mechanisms. METHODS In vivo, 5 μL of disease venom was injected into the lateral ventricle of APP/PS1 mice for treatment. Pyroptosis was induced by treating astrocytes with Aβ42 in vitro. Small interfering RNA (siRNA) was used to silence caspase-1 and Gasdermin D (GSDMD) mRNA expression. Cell viability was determined using a CCK-8 detection kit. Scanning electron microscopy (SEM), Annexin V/propidium iodide (PI) double staining, RT-qPCR, immunofluorescence, western blotting, and enzyme-linked immunosorbent assay (ELISA) were used to detect cell pyroptosis. The degree of pathological damage to the brain and aortic tissue was assessed by hematoxylin-eosin staining and immunohistochemistry. RESULTS Aβ42 induced astrocyte pyroptosis dependent on the GSDMD/Gasdermin E (GSDME)/Caspase 11/NLRP3 pathway, releasing large amounts of inflammatory factors, such as TNF-α, IL-1α, IL-1β, and IL-18. Astrocyte pyroptosis caused endothelial cell dysfunction and release of large amounts of vasoconstrictors (ET and vWF). Knockdown of GSDMD reduced astrocyte pyroptosis in the cerebral cortex and hippocampal tissue, decreased the release of inflammatory factors IL-1 β and IL-18, reduced Aβ deposition and tau protein, increased the release of peripheral vasodilator substances (eNOS), and decreased the release of vasoconstrictor substances (ET, vWF), thereby reducing brain tissue damage and vascular injury in APP/PS1 mice. CONCLUSION Aβ42 induced astrocyte pyroptosis, while GSDMD knockout inhibited astrocyte pyroptosis, reduced the release of inflammatory factors, and alleviated brain tissue damage and vascular damage in APP/PS1 mice. Therefore, GSDMD is a novel therapeutic target for Alzheimer's disease. PURPOSE The study aimed to investigate whether astrocyte pyroptosis, and the subsequent neuroinflammatory response that exerts amyloid β (Aβ) neurotoxic effects, has an effect on endothelial cells, along with the underlying mechanisms. METHODS In vivo, 5 μL of disease venom was injected into the lateral ventricle of APP/PS1 mice for treatment. Pyroptosis was induced by treating astrocytes with Aβ42 in vitro. Small interfering RNA (siRNA) was used to silence caspase-1 and Gasdermin D (GSDMD) mRNA expression. Cell viability was determined using a CCK-8 detection kit. Scanning electron microscopy (SEM), Annexin V/propidium iodide (PI) double staining, RT-qPCR, immunofluorescence, western blotting, and enzyme-linked immunosorbent assay (ELISA) were used to detect cell pyroptosis. The degree of pathological damage to the brain and aortic tissue was assessed by hematoxylin-eosin staining and immunohistochemistry. RESULTS Aβ42 induced astrocyte pyroptosis dependent on the GSDMD/Gasdermin E (GSDME)/Caspase 11/NLRP3 pathway, releasing large amounts of inflammatory factors, such as TNF-α, IL-1α, IL-1β, and IL-18. Astrocyte pyroptosis caused endothelial cell dysfunction and release of large amounts of vasoconstrictors (ET and vWF). Knockdown of GSDMD reduced astrocyte pyroptosis in the cerebral cortex and hippocampal tissue, decreased the release of inflammatory factors IL-1 β and IL-18, reduced Aβ deposition and tau protein, increased the release of peripheral vasodilator substances (eNOS), and decreased the release of vasoconstrictor substances (ET, vWF), thereby reducing brain tissue damage and vascular injury in APP/PS1 mice. CONCLUSION Aβ42 induced astrocyte pyroptosis, while GSDMD knockout inhibited astrocyte pyroptosis, reduced the release of inflammatory factors, and alleviated brain tissue damage and vascular damage in APP/PS1 mice. Therefore, GSDMD is a novel therapeutic target for Alzheimer's disease.
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Affiliation(s)
- Wenjuan Hong
- Department of Psychiatry, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Chengping Hu
- Department of Psychiatry, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Can Wang
- Department of Psychiatry, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Binggen Zhu
- Department of Psychiatry, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
| | - Ming Tian
- Department of Burn, Wound Healing Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Hongyun Qin
- Department of Psychiatry, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200124, China
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Pang J, Vince JE. The role of caspase-8 in inflammatory signalling and pyroptotic cell death. Semin Immunol 2023; 70:101832. [PMID: 37625331 DOI: 10.1016/j.smim.2023.101832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/20/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
The programmed cell death machinery exhibits surprising flexibility, capable of crosstalk and non-apoptotic roles. Much of this complexity arises from the diverse functions of caspase-8, a cysteine-aspartic acid protease typically associated with activating caspase-3 and - 7 to induce apoptosis. However, recent research has revealed that caspase-8 also plays a role in regulating the lytic gasdermin cell death machinery, contributing to pyroptosis and immune responses in contexts such as infection, autoinflammation, and T-cell signalling. In mice, loss of caspase-8 results in embryonic lethality from unrestrained necroptotic killing, while in humans caspase-8 deficiency can lead to an autoimmune lymphoproliferative syndrome, immunodeficiency, inflammatory bowel disease or, when it can't cleave its substrate RIPK1, early onset periodic fevers. This review focuses on non-canonical caspase-8 signalling that drives immune responses, including its regulation of inflammatory gene transcription, activation within inflammasome complexes, and roles in pyroptotic cell death. Ultimately, a deeper understanding of caspase-8 function will aid in determining whether, and when, targeting caspase-8 pathways could be therapeutically beneficial in human diseases.
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Affiliation(s)
- Jiyi Pang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - James E Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
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Zhou B, Abbott DW. Chemical modulation of gasdermin D activity: Therapeutic implications and consequences. Semin Immunol 2023; 70:101845. [PMID: 37806032 PMCID: PMC10841450 DOI: 10.1016/j.smim.2023.101845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/01/2023] [Accepted: 09/25/2023] [Indexed: 10/10/2023]
Abstract
The gasdermin family of proteins are central effectors of the inflammatory, lytic cell death modality known as pyroptosis. Characterized in 2015, the most well-studied member gasdermin D can be proteolyzed, typically by caspases, to generate an active pore-forming N-terminal domain. At least well-studied three pharmacological inhibitors (necrosulfonamide, disulfiram, dimethyl fumarate) since 2018 have been shown to affect gasdermin D activity either through modulation of processing or interference with pore formation. A multitude of murine in vivo studies have since followed. Here, we discuss the current state of research surrounding these three inhibitors, caveats to their use, and a set of guiding principles that researchers should consider when pursuing further studies of gasdermin D inhibition.
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Affiliation(s)
- Bowen Zhou
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Derek W Abbott
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA.
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Lu Y, Sun Y, Peng Y, Zhao X, Wang D, Zhang T, Qian F, Wang J. Inhibition of gasdermin D ( GSDMD) as a promising therapeutic approach for atopic dermatitis. Int Immunopharmacol 2023; 124:110958. [PMID: 37741129 DOI: 10.1016/j.intimp.2023.110958] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/25/2023]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by pruritus, erythema, and skin barrier dysfunction. Gasdermin D (GSDMD) is the key executioner of an inflammatory cell death mechanism known as pyroptosis. However, the role of GSDMD in the pathogenesis of AD remains unclear. Through the analysis of publicly available Gene Expression Omnibus (GEO) datasets, we observed an upregulation of Gsdmd mRNA in the skin tissue of AD patients. Moreover, we delved into the impact of GSDMD deletion and inhibition on AD-like skin lesions using a mouse model induced by the topical application of oxazolone (Oxa). We found that mice lacking GSDMD exhibited relieved AD signs and symptoms in terms of reduced skin thickness, scarring and scratching behavior compared to wild-type mice after induction of AD-like skin lesions. This was associated with decreased infiltration of inflammatory cells, reduced epidermal thickness, and decreased serum levels of IgE and IL-4. Western blot analysis further revealed decreased GSDMD cleavage in the skin of GSDMD knockout mice, and reduced expression of IL-1β and IL-18. Inhibition of GSDMD using the pharmacological agent disulfiram or the herbal compound matrine significantly attenuated the symptoms of AD-like skin lesions in wild-type mice, GSDMD cleavage and pro-inflammatory cytokines were reduced as well. Our results suggest that GSDMD-mediated pyroptosis plays a critical role in the development of AD-like skin lesions, and targeting GSDMD may be a promising therapeutic strategy for AD.
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Affiliation(s)
- Yiteng Lu
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China; Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ye Sun
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yong Peng
- Department of Dermatology, Jiading District Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoqiang Zhao
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Danjie Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Tongtong Zhang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fang Qian
- Department of Pharmacy, Jiading District Hospital of Traditional Chinese Medicine, Shanghai, China.
| | - Jun Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Medical College, Fudan University, Shanghai, China.
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Zhang D, Ge F, Ji J, Li YJ, Zhang FR, Wang SY, Zhang SJ, Zhang DM, Chen M. β-sitosterol alleviates dextran sulfate sodium-induced experimental colitis via inhibition of NLRP3/Caspase-1/ GSDMD-mediated pyroptosis. Front Pharmacol 2023; 14:1218477. [PMID: 37954856 PMCID: PMC10637366 DOI: 10.3389/fphar.2023.1218477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Background: Inflammation-related NLRP3/Caspase-1/GSDMD-mediated pyroptosis is involved in the progression of ulcerative colitis (UC). β-sitosterol (SIT) was reported to have anti-inflammatory effects on experimental colitis, while the regulation of SIT on pyroptosis is unclear. Therefore, the present study aimed to define the protective and healing effects of SIT on dextran sulfate sodium (DSS)-induced experimental UC rats and human epithelial colorectal adenocarcinoma cells (Caco-2) and explore the underlying mechanisms that are responsible for its effects on NLRP3/Caspase-1/GSDMD-mediated pyroptosis in UC. Methods: UC model rats were established by oral 4% DSS. Following colitis injury, the animals received SIT (doses of 50, 100, and 200 mg/kg) treatment for 2 weeks. For in vitro study, we exposed Caco-2-50 mg/mL DSS with or without SIT (concentrations of 8 and 16 μg/mL). Disease activity index (DAI) and histopathological injury were assessed in vivo. Activation proteins of nuclear factor kappa B (NF-κB) signaling axis, and tight junction-related proteins of zonula occludens-1 (ZO-1) and occludin were detected in colon tissues. TNF-α, IL-1β, and IL-18 in serum and cell supernatant were measured by enzyme-linked immunosorbent assay (ELISA). Changes in NLRP3/Caspase-1/GSDMD-mediated pyroptosis signaling pathway activation were analyzed both in tissues and cells. Results: Our findings suggested that SIT treatment attenuated the severity of 4% DSS-induced UC by protecting rats from weight and colon length loss, and macroscopic damage. SIT also reduced proinflammatory factors production (TNF-α, IL-1β, and IL-18) in serum and cell supernatant. Mechanistically, SIT downregulated the expression levels of pyroptosis-related proteins including Caspase-1, cleaved-Caspase-1, NLRP3, GSDMD, and GSDMD-N in colon tissues and Caco-2 cells. Further analysis indicated that SIT maintained the colonic barrier integrity by enhancing the protein expression of ZO-1 and occludin. Conclusion: We confirmed that SIT exerts protective and therapeutic effects on DSS-induced colitis injury by suppressing NLRP3/Caspase-1/GSDMD-mediated pyroptosis and inflammation response. These findings demonstrated that SIT could be a potential medication for UC treatment.
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Affiliation(s)
- Di Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Fei Ge
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jing Ji
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yu-Jing Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Fu-Rong Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shu-Yan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shu-Jing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Dong-Mei Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Meng Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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Abstract
Pyroptosis is a programmed necrotic cell death executed by gasdermins, a family of pore-forming proteins. The cleavage of gasdermins by specific proteases enables their pore-forming activity. The activation of the prototype member of the gasdermin family, gasdermin D (GSDMD), is linked to innate immune monitoring by inflammasomes. Additional gasdermins such as GSDMA, GSDMB, GSDMC, and GSDME are activated by inflammasome-independent mechanisms. Pyroptosis is emerging as a key host defense strategy against pathogens. However, excessive pyroptosis causes cytokine storm and detrimental inflammation leading to tissue damage and organ dysfunction. Consequently, dysregulated pyroptotic responses contribute to the pathogenesis of various diseases, including sepsis, atherosclerosis, acute respiratory distress syndrome, and neurodegenerative disorders. This review will discuss the inflammatory consequences of pyroptosis and the mechanisms of pyroptosis-induced tissue damage and disease pathogenesis.
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Affiliation(s)
- Swathy O Vasudevan
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT 06030, USA
| | | | - Vijay A Rathinam
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT 06030, USA.
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Shao Y, Deng S, Tang W, Huang L, Xie Y, Yuan S, Tang L. Molecular mechanism of GSDMD mediated glomerular endothelial cells pyroptosis: An implying in the progression of diabetic nephropathy. Int Immunopharmacol 2023; 122:110632. [PMID: 37451013 DOI: 10.1016/j.intimp.2023.110632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/28/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
Diabetic nephropathy (DN), a chronic progressive kidney disease, is the most prevalent microvascular complication associated with diabetes which causes the end-stage renal disease. Glomerular endothelial cells (GECs) are one of the inherent cells of the glomerulus and are particularly susceptible to be damaged by glucose, lipids and inflammatory factors. Numerous studies indicated that GECs injury was a critical pathological event in the early stages of DN. Previous studies have shown that podocyte pyroptosis occurred through the classical caspase-1 pathway, leading to kidney injury. However, the occurrence of pyroptosis in GECs and the underlying mechanism remain unclear. In this study, we investigated the pyroptosis of GECs during DN and its underlying mechanism. Upon stimulation with high glucose (HG), we observed the upregulation of GSDMD and cleaved N-terminus, disruption of cell membrane integrity, and an increase in IL-18 inflammatory cytokines. Also, we found that the expression of caspase-11, GSDMD and GSDMD-N were increased in C57BL/6J mice induced by STZ combined with high sugar and fat. In addition, the pathological results of kidney showed a significant thickening of the glomerular basement membrane, abnormal increasement of extracellular matrix and hyperplasia with blurred boundaries of glomerulus. Furthermore, interfering the expression of GSDMD improved the pathological degree of kidney. These findings indicated that the pyroptosis of GECs during DN was facilitated by the non-classical pathway of caspase-11/GSDMD, ultimately leading to GECs injury and further aggravating the progression of DN. This work highlights the potential of GSDMD as a therapeutic target for the treatment of DN.
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Affiliation(s)
- Yawen Shao
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Shujun Deng
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Wei Tang
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi, China
| | - Lingzhi Huang
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Yongsheng Xie
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Siming Yuan
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China.
| | - Liqin Tang
- Department of Pharmacy, The First Affiliated Hospital of University of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China.
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Chen Y, Jiang Y, Liu X, Chen X, Fan Q, Xiao Z. Polydatin alleviates mycoplasma pneumoniae-induced injury via inhibition of Caspase-1/ GSDMD-dependent pyroptosis. Int J Med Microbiol 2023; 313:151586. [PMID: 37776814 DOI: 10.1016/j.ijmm.2023.151586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 07/27/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023] Open
Abstract
Mycoplasma pneumoniae (MP) is one of the main pathogens causing community acquired pneumonia (CAP) in children and adults. Previous pharmacological and clinical studies have shown that Polydatin (PD) exerts anti-inflammatory action by conferring protective benefit in MP pneumonia. However, the mechanism underlying the of PD on MP infection remains unclear. It was found that PD alleviated MP-induced injury by inhibiting caspase-1/gasdermin D (GSDMD)-mediated epithelial pyroptosis. The results demonstrated that PD inhibited the transformation of GSDMD to N-terminal gasdermin-N (GSDMD-N) by decreasing caspase-1 activation, as well as suppressed the formation and secretion of interleukin-1β (IL-1β) and interleukin-18 (IL-18), reversed Na, K-ATPase reduction, and suppressed LDH release both in vitro and vivo. Taken together, epithelial pyroptosis in BEAS-2B cells and lung injury in mice were prevented by PD. In conclusion, PD suppressed pulmonary injury triggered by MP infection, by inhibiting the caspase-1/GSDMD-mediated epithelial pyroptosis signaling pathway. Thus, PD may be regarded as a potential therapy for MP-induced inflammation.
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Affiliation(s)
- Yiliu Chen
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Yonghong Jiang
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Xiuxiu Liu
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Xiufeng Chen
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Qiuyue Fan
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
| | - Zhen Xiao
- Department of Pediatric, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
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Yang X, Cao Q, Guo Y, He J, Xu D, Lin A. GSDMD knockdown attenuates phagocytic activity of microglia and exacerbates seizure susceptibility in TLE mice. J Neuroinflammation 2023; 20:193. [PMID: 37612735 PMCID: PMC10464294 DOI: 10.1186/s12974-023-02876-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Temporal lobe epilepsy (TLE) is often characterized pathologically by severe neuronal loss in the hippocampus. Phagocytic activity of microglia is essential for clearing apoptotic neuronal debris, allowing for repair and regeneration. Our previous research has shown that gasdermin D (GSDMD)-mediated pyroptosis is involved in the pathogenesis of TLE. However, whether GSDMD-mediated pyroptosis influences the accumulation of apoptotic neurons remains unclear. Therefore, the present study was designed to investigate whether phagocytic activity of microglia is involved in GSDMD-mediated pyroptosis and the pathogenesis of TLE. METHODS To establish a TLE model, an intra-amygdala injection of kainic acid (KA) was performed. The Racine score and local field potential (LFP) recordings were used to assess seizure severity. Neuronal death in the bilateral hippocampus was assessed by Nissl staining and TUNEL staining. Microglial morphology and phagocytic activity were detected by immunofluorescence and verified by lipopolysaccharide (LPS) and the P2Y12R agonist 2MeSADP. RESULTS GSDMD knockdown augmented the accumulation of apoptotic neurons and seizure susceptibility in TLE mice. Microglia activated and transition to the M1 type with increased pro-inflammatory cytokines. Furthermore, GSDMD knockdown attenuated the migration and phagocytic activity of microglia. Of note, LPS-activated microglia attenuated seizure susceptibility and the accumulation of apoptotic neurons in TLE after GSDMD knockdown. A P2Y12R selective agonist, 2MeSADP, enhanced the migration and phagocytic activity of microglia. CONCLUSIONS Our results demonstrate that GSDMD knockdown exacerbates seizure susceptibility and the accumulation of apoptotic neurons by attenuating phagocytic activity of microglia. These findings suggest that GSDMD plays a protective role against KA-induced seizure susceptibility.
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Affiliation(s)
- Xiaoxia Yang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin, 300052, China
| | - Qingqing Cao
- Department of Neurology, Bishan Hospital of Chongqing Medical University, Bishan Hospital of Chongqing, No. 9 Shuangxing Road, Chongqing, 402760, China
| | - Yi Guo
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, 32# W. Sec 2, 1st Ring Rd, Chengdu, 610072, Sichuan, China
| | - Jingchuan He
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, No.6 Jizhao Road Jinnan District, Tianjin, 300350, China
| | - Demei Xu
- Department of Neurology, Chongqing Key Laboratory of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1Youyi Road, Chongqing, 400016, China
| | - Aolei Lin
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Anshan Road No. 154, Tianjin, 300052, China.
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Nowowiejska J, Baran A, Hermanowicz JM, Pryczynicz A, Sieklucka B, Pawlak D, Flisiak I. Gasdermin D ( GSDMD) Is Upregulated in Psoriatic Skin-A New Potential Link in the Pathogenesis of Psoriasis. Int J Mol Sci 2023; 24:13047. [PMID: 37685853 PMCID: PMC10488204 DOI: 10.3390/ijms241713047] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 09/09/2023] Open
Abstract
Psoriasis is an important issue in daily dermatological practice. Not only is it an aesthetic defect but it is also a matter of decreased life quality and economic burden. However frequent, the pathogenesis of psoriasis remains uncertain despite numerous investigations. Gasdermins are a family of six proteins. Gasdermin D (GSDMD) is the best-studied from this group and is involved in the processes of inflammation, proliferation, and death of cells, especially pyroptosis. GSDMD has never been studied in psoriatic sera or urine before. Our study involved 60 patients with psoriasis and 30 volunteers without dermatoses as controls. Serum and urinary GSDMD concentrations were examined by ELISA. The tissue expression of GSDMD was assessed by immunohistochemistry. The serum-GSDMD concentration was insignificantly higher in the patients than controls. There were no differences in the urinary-GSDMD concentrations between the patients and controls. Strong tissue expression of GSDMD was significantly more prevalent in psoriatic plaque than in the non-lesional skin and healthy skin of the controls. There was no correlation between the serum-GSDMD concentrations and the psoriasis severity in PASI, age, or disease duration. Taking into consideration the documented role of gasdermins in cell proliferation and death, the increased expression of GSDMD in psoriatic skin may demonstrate the potential involvement of this protein in psoriasis pathogenesis. Neither serum, nor urinary GSDMD can be currently considered a psoriasis biomarker; however, future studies may change this perspective.
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Affiliation(s)
- Julia Nowowiejska
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (I.F.)
| | - Anna Baran
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (I.F.)
| | - Justyna Magdalena Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-089 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Anna Pryczynicz
- Department of General Pathomorphology, Medical University of Bialystok, 13 Waszyngtona St., 15-269 Bialystok, Poland;
| | - Beata Sieklucka
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-089 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-089 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Iwona Flisiak
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (I.F.)
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Zhang J, Wang Y, Ma J, Aimudula A. Expression of gasdermin D in clear cell renal cell carcinoma and its effect on its biological function. Front Oncol 2023; 13:1163714. [PMID: 37483501 PMCID: PMC10358983 DOI: 10.3389/fonc.2023.1163714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 06/13/2023] [Indexed: 07/25/2023] Open
Abstract
Background Clear cell renal cell carcinoma (ccRCC) is the most common type of renal cell carcinoma, which suffers from the lack of diagnosis and treatment methods, and many patients cannot be diagnosed at first time. Gasdermin D (GSDMD) is involved in inflammatory reactions and pyroptosis and is considered a potential therapeutic target. This paper's aim is to elucidate the expression of GSDMD in clear cell renal cell carcinoma and its value for treatment and prognosis, as well as its impact on the biological function of clear cell renal cell carcinoma. Method The Cancer Genome Atlas (TCGA) database was used to compare the expression of GSDMD in tumor and normal tissues, analyze its correlation with cancer stage and overall survival time, and establish receiver operating characteristic (ROC) curve, which was confirmed by the Gene Expression Omnibus (GEO) database and immunohistochemical staining of clinical samples and PCR and Western blotting (WB) of cell lines. The relationship between GSDMD and patient prognosis and staging was analyzed using TCGA database and validated using clinical sample data. Differentially expressed genes (DEGs) and epithelial-mesenchymal transition (EMT)-related genes of GSDMD were screened by TCGA database. Protein-protein interaction (PPI) of GSDMD was constructed by GeneMANIA and STRING, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment were analyzed by the Metascape database. Then, R software was used to analyze the immune cell infiltration, immune microenvironment score, and tumor mutational burden (TMB) analysis of GSDMD high- and low-expression groups in TCGA database. GSDMD lentivirus was used to transfect 769-P cells to construct stable upregulated and downregulated transfected cell lines. PCR was used to verify the expression differences of differentially expressed genes between the high- and low-expression groups of GSDMD; then, MTT, flow apoptosis, and Transwell were used to detect the proliferation, apoptosis, invasion, and migration of the transfected cells. Results The results of bioinformatics analysis showed that the expression of GSDMD in clear cell renal cell carcinoma was significantly correlated with patient stage and overall survival, and the tumor with high expression of GSDMD had a worse stage and overall survival. GSDMD has some significance in the diagnosis of ccRCC. The results of EMT correlation analysis and enrichment analysis showed that GSDMD was correlated with genes and pathways related to invasion and metastasis of renal cell carcinoma. The subsequent immune cell infiltration analysis showed that there were many differences in the infiltration of immune cells between the high- and low-expression groups of GSDMD, such as naive B cells. The immune microenvironment score showed that the high-expression group had a lower proportion of stromal cells than the local expression group but had a higher proportion of immune cells. Through TMB, it was shown that the high-expression group had a higher mutation. The expression of GSDMD in renal cell carcinoma by immunohistochemistry and in vitro cell experiments was confirmed. According to the prognostic information of clinical patients, it was found that GSDMD was significantly correlated with TNM stage, Fuhrman grade, lymph node metastasis, gender, and smoking or not, and the prognosis of patients with high expression of GSDMD was worse. After that, we constructed stable transfection cell lines with high expression and knockdown through lentivirus transfection and verified the expression amount of differentially expressed genes by PCR, which is consistent with the results of TCGA database. Then, we confirmed that GSDMD is related to proliferation, invasion, migration, and apoptosis of ccRCC by MTT, flow apoptosis, and Transwell assay. The low expression of GSDMD inhibits the proliferation, invasion, and migration of tumors and enhances apoptosis and vice versa. Therefore, GSDMD can be used as a potential biological marker for the diagnosis and prognosis of ccRCC.
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Affiliation(s)
- Jichi Zhang
- Urological Center, Xinjiang Medical University, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yujie Wang
- Urological Center, Xinjiang Medical University, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Jun Ma
- Urological Center, Xinjiang Medical University, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Ainiwaer Aimudula
- Cancer Center, Xinjiang Medical University, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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