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Wu LY, Zhang JL, Zeeshan M, Zhou Y, Zhang YT, He WT, Jin N, Dai Y, Chi W, Ou Z, Dong GH, Lin LZ. Caspase-8 promotes NLRP3 inflammasome activation mediates eye development defects in zebrafish larvae exposed to perfulorooctane sulfonate (PFOS). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124252. [PMID: 38815886 DOI: 10.1016/j.envpol.2024.124252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/18/2024] [Accepted: 05/26/2024] [Indexed: 06/01/2024]
Abstract
Epidemiological evidence showed that serum high perfluorooctane sulfonate (PFOS) levels are associated with multiple eye related diseases, but the potential underlying molecular mechanisms remain poorly understood. Zebrafish and photoreceptor cell (661w) models were used to investigate the molecular mechanism of PFOS induced eye development defects. Our results showed a novel molecular mechanism of PFOS-induced inflammation response-mediated photoreceptor cell death associated with eye development defects. Inhibition of Caspase-8 activation significantly decreased photoreceptor cell death in PFOS exposure. Mechanistically, Toll-like receptor 4 (TLR4) mediates activation of Caspase-8 promote activation of NLR family pyrin domain-containing 3 (NLRP3) inflammasome to elicit maturation of interleukin-1 beta (IL-1β) via Caspase-1 activation, facilitating photoreceptor cell inflammation damage in PFOS exposure. In addition, we also made a novel finding that Caspase-3 activation was increased via Caspase-8 activation and directly intensified cell death. Our results show the important role of Caspase-8 activation in PFOS induced eye development defects and highlight Caspase-8 mediated activation of the NLRP3 inflammation triggers activation of Caspase-1 and promote the maturation of IL-1β in retinal inflammatory injury.
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Affiliation(s)
- Lu-Yin Wu
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jing-Lin Zhang
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Mohammed Zeeshan
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Yang Zhou
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, 510655, China
| | - Yun-Ting Zhang
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wan-Ting He
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Nanxiang Jin
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70210, Kuopio, Finland
| | - Ye Dai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Wei Chi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, Guangdong, China
| | - Zejin Ou
- Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, Guangzhou, China
| | - Guang-Hui Dong
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Li-Zi Lin
- Joint International Research Laboratory of Environment and Health, Ministry of Education, Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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2
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Li L, Dickinson MS, Coers J, Miao EA. Pyroptosis in defense against intracellular bacteria. Semin Immunol 2023; 69:101805. [PMID: 37429234 PMCID: PMC10530505 DOI: 10.1016/j.smim.2023.101805] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
Pathogenic microbes invade the human body and trigger a host immune response to defend against the infection. In response, host-adapted pathogens employ numerous virulence strategies to overcome host defense mechanisms. As a result, the interaction between the host and pathogen is a dynamic process that shapes the evolution of the host's immune response. Among the immune responses against intracellular bacteria, pyroptosis, a lytic form of cell death, is a crucial mechanism that eliminates replicative niches for intracellular pathogens and modulates the immune system by releasing danger signals. This review focuses on the role of pyroptosis in combating intracellular bacterial infection. We examine the cell type specific roles of pyroptosis in neutrophils and intestinal epithelial cells. We discuss the regulatory mechanisms of pyroptosis, including its modulation by autophagy and interferon-inducible GTPases. Furthermore, we highlight that while host-adapted pathogens can often subvert pyroptosis, environmental microbes are effectively eliminated by pyroptosis.
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Affiliation(s)
- Lupeng Li
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Cell Biology, Duke University School of Medicine, Durham, NC, USA; Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Mary S Dickinson
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Jörn Coers
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Edward A Miao
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Cell Biology, Duke University School of Medicine, Durham, NC, USA; Department of Pathology, Duke University School of Medicine, Durham, NC, USA.
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3
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Liu Y, Lei H, Zhang W, Xing Q, Liu R, Wu S, Liu Z, Yan Q, Li W, Liu X, Hu Y. Pyroptosis in renal inflammation and fibrosis: current knowledge and clinical significance. Cell Death Dis 2023; 14:472. [PMID: 37500614 PMCID: PMC10374588 DOI: 10.1038/s41419-023-06005-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
Pyroptosis is a novel inflammatory form of regulated cell death (RCD), characterized by cell swelling, membrane rupture, and pro-inflammatory effects. It is recognized as a potent inflammatory response required for maintaining organismal homeostasis. However, excessive and persistent pyroptosis contributes to severe inflammatory responses and accelerates the progression of numerous inflammation-related disorders. In pyroptosis, activated inflammasomes cleave gasdermins (GSDMs) and generate membrane holes, releasing interleukin (IL)-1β/18, ultimately causing pyroptotic cell death. Mechanistically, pyroptosis is categorized into caspase-1-mediated classical pyroptotic pathway and caspase-4/5/11-mediated non-classical pyroptotic pathway. Renal fibrosis is a kidney disease characterized by the loss of structural and functional units, the proliferation of fibroblasts and myofibroblasts, and extracellular matrix (ECM) accumulation, which leads to interstitial fibrosis of the kidney tubules. Histologically, renal fibrosis is the terminal stage of chronic inflammatory kidney disease. Although there is a multitude of newly discovered information regarding pyroptosis, the regulatory roles of pyroptosis involved in renal fibrosis still need to be fully comprehended, and how to improve clinical outcomes remains obscure. Hence, this review systematically summarizes the novel findings regarding the role of pyroptosis in the pathogenesis of renal fibrosis and discusses potential biomarkers and drugs for anti-fibrotic therapeutic strategies.
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Affiliation(s)
- Ya Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Haibo Lei
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Wenyou Zhang
- Department of Pharmacy, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Qichang Xing
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Renzhu Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Shiwei Wu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Zheng Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Qingzi Yan
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Wencan Li
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China
| | - Xiang Liu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China.
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China.
| | - Yixiang Hu
- Molecular Pharmacology Laboratory, Department of Clinical Pharmacy, Xiangtan Center Hospital, Xiangtan, 411100, China.
- Honghao Zhou Research Institute, Xiangtan Center Hospital, Xiangtan, 411100, China.
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4
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Traughber CA, Deshpande GM, Neupane K, Bhandari N, Khan MR, McMullen MR, Swaidani S, Opoku E, Muppala S, Smith JD, Nagy LE, Gulshan K. Myeloid-cell-specific role of Gasdermin D in promoting lung cancer progression in mice. iScience 2023; 26:106076. [PMID: 36844454 PMCID: PMC9947301 DOI: 10.1016/j.isci.2023.106076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/29/2022] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
The activities of the NLRP3 and AIM2 inflammasomes and Gasdermin D (GsdmD) are implicated in lung cancer pathophysiology but it's not clear if their contributions promote or retard lung cancer progression. Using a metastatic Lewis lung carcinoma (LLC) cell model, we show that GsdmD knockout (GsdmD-/-) mice form significantly fewer cancer foci in lungs, exhibit markedly decreased lung cancer metastasis, and show a significant ∼50% increase in median survival rate. The cleaved forms of GsdmD and IL-1β were detected in lung tumor tissue, indicating inflammasome activity in lung tumor microenvironment (TME). Increased migration and growth of LLC cells was observed upon exposure to the conditioned media derived from inflammasome-induced wild type, but not the GsdmD-/-, macrophages. Using bone marrow transplantations, we show a myeloid-specific contribution of GsdmD in lung cancer metastasis. Taken together, our data show that GsdmD plays a myeloid-specific role in lung cancer progression.
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Affiliation(s)
- C. Alicia Traughber
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH 44115, USA,Department of Biology, Geology, and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA,Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Gauravi M. Deshpande
- Digital Imaging Core, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kalash Neupane
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH 44115, USA,Department of Biology, Geology, and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA
| | - Nilam Bhandari
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH 44115, USA,Department of Biology, Geology, and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA
| | - Mariam R. Khan
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH 44115, USA,Department of Biology, Geology, and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA
| | - Megan R. McMullen
- Departments of Inflammation and Immunity and Gastroenterology/Hepatology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA,Northern Ohio Alcohol Center, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Shadi Swaidani
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Emmanuel Opoku
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Santoshi Muppala
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jonathan D. Smith
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Laura E. Nagy
- Departments of Inflammation and Immunity and Gastroenterology/Hepatology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA,Northern Ohio Alcohol Center, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kailash Gulshan
- Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, OH 44115, USA,Department of Biology, Geology, and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA,Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA,Corresponding author
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5
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Vaccination with Mycoplasma pneumoniae membrane lipoproteins induces IL-17A driven neutrophilia that mediates Vaccine-Enhanced Disease. NPJ Vaccines 2022; 7:86. [PMID: 35906257 PMCID: PMC9336141 DOI: 10.1038/s41541-022-00513-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/24/2022] [Indexed: 11/24/2022] Open
Abstract
Bacterial lipoproteins are an often-underappreciated class of microbe-associated molecular patterns with potent immunomodulatory activity. We previously reported that vaccination of BALB/c mice with Mycoplasma pneumoniae (Mp) lipid-associated membrane proteins (LAMPs) resulted in lipoprotein-dependent vaccine enhanced disease after challenge with virulent Mp, though the immune responses underpinning this phenomenon remain poorly understood. Herein, we report that lipoprotein-induced VED in a mouse model is associated with elevated inflammatory cytokines TNF-α, IL-1β, IL-6, IL-17A, and KC in lung lavage fluid and with suppurative pneumonia marked by exuberant neutrophilia in the pulmonary parenchyma. Whole-lung-digest flow cytometry and RNAScope analysis identified multiple cellular sources for IL-17A, and the numbers of IL-17A producing cells were increased in LAMPs-vaccinated/Mp-challenged animals compared to controls. Specific IL-17A or neutrophil depletion reduced disease severity in our VED model—indicating that Mp lipoproteins induce VED in an IL-17A-dependent manner and through exuberant neutrophil recruitment. IL-17A neutralization reduced levels of TNF-α, IL-1β, IL-6, and KC, indicating that IL-17A preceded other inflammatory cytokines. Surprisingly, we found that IL-17A neutralization impaired bacterial clearance, while neutrophil depletion improved it—indicating that, while IL-17A appears to confer both maladaptive and protective responses, neutrophils play an entirely maladaptive role in VED. Given that lipoproteins are found in virtually all bacteria, the potential for lipoprotein-mediated maladaptive inflammatory responses should be taken into consideration when developing vaccines against bacterial pathogens.
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6
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Tang L, Li T, Zhang B, Zhang Z, Sun X, Zhu Y, Feng B, Su Z, Yang L, Li H, Liu H, Chen Y, Dai Z, Zheng X, Li M, Li C, Zhao J, Qiu X, Ye S, Liu H, Zheng G, Li B, Lu C. Punicalagin Alleviates Psoriasis by Inhibiting NF-κB-Mediated IL-1β Transcription and Caspase-1-Regulated IL-1β Secretion. Front Pharmacol 2022; 13:817526. [PMID: 35153790 PMCID: PMC8826397 DOI: 10.3389/fphar.2022.817526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/10/2022] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a chronic and inflammatory skin disorder characterized by inflammation and epidermal hyperplasia. Punicalagin (PUN) is a main active ingredient of pomegranate (Punica granatum L.) peel with multiple biological activities, such as antibacterial, antioxidant and anti-tumor effects. However, the potential effect of PUN on psoriasis remains unknown. In this study, we want to investigate the pharmacological effect of PUN on psoriasis by using imiquimod (IMQ)-induced psoriatic mice model in vivo and tumor necrosis factor a (TNF-α) and interleukin-17A (IL-17A)-stimulated HaCaT cells in vitro. Our results showed that PUN can effectively alleviate the severity of psoriasis-like symptoms. Mechanistically, PUN potently suppresses the aberrant upregulation of interleukin-1β (IL-1β) and subsequent IL-1β-mediated inflammatory cascade in keratinocytes by inhibiting the nuclear factor kappa B (NF-κB) activation and cleaved caspase-1 expression in vitro and in vivo. Taken together, our findings indicate that PUN can relieve psoriasis by repressing NF-κB-mediated IL-1β transcription and caspase-1-regulated IL-1β secretion, which provide evidence that PUN might represent a novel and promising candidate for the treatment of psoriasis.
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Affiliation(s)
- Lipeng Tang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tong Li
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacy, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bowen Zhang
- Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zihao Zhang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaoyi Sun
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Zhu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bing Feng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zuqing Su
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Laijun Yang
- Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongxia Li
- Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huazhen Liu
- Section of Immunology, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Yuchao Chen
- Section of Immunology, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Zhenhua Dai
- Section of Immunology, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, China
| | - Xirun Zheng
- Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mingxian Li
- Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chutian Li
- Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jie Zhao
- Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinmin Qiu
- Genetic Testing Lab, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shuyan Ye
- Department of Dermatology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Han Liu
- Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangjuan Zheng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pharmacology of Traditional Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Pathology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ben Li
- Department of Pharmacy, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chuanjian Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Dermatology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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7
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Gasdermin D and Beyond - Gasdermin-mediated Pyroptosis in Bacterial Infections. J Mol Biol 2021; 434:167409. [PMID: 34929200 DOI: 10.1016/j.jmb.2021.167409] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/21/2022]
Abstract
The discovery of pyroptosis and its subsequent implications in infection and immunity has uncovered a new angle of host-defence against pathogen assault. At its most simple, gasdermin-mediated pyroptosis in bacterial infection would be expected to remove pathogens from the relative safety of the cytosol or pathogen containing vacuole/phagosome whilst inducing a rapid and effective immune response. Differences in gasdermin-mediated pyroptosis between cell types, stimulation conditions, pathogen and even animal species, however, make things more complex. The excessive inflammation associated with the pathogen-induced gasdermin-mediated pyroptosis contributes to a downward spiral in sepsis. With no currently approved effective treatment options for sepsis understanding how gasdermin-mediated pyroptotic pathways are regulated provides an opportunity to identify novel therapeutic candidates against this complex disease. In this review we cover recent advances in the field of gasdermin-mediated pyroptosis with a focus on bacterial infection and sepsis models in the context of humans and other animal species. Importantly we also consider why there is considerable redundancy set into these ancient immune pathways.
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Tsuchiya K. Switching from Apoptosis to Pyroptosis: Gasdermin-Elicited Inflammation and Antitumor Immunity. Int J Mol Sci 2021; 22:E426. [PMID: 33406603 PMCID: PMC7794676 DOI: 10.3390/ijms22010426] [Citation(s) in RCA: 142] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 12/16/2022] Open
Abstract
Pyroptosis is a necrotic form of regulated cell death. Gasdermines (GSDMs) are a family of intracellular proteins that execute pyroptosis. While GSDMs are expressed as inactive forms, certain proteases proteolytically activate them. The N-terminal fragments of GSDMs form pores in the plasma membrane, leading to osmotic cell lysis. Pyroptotic cells release pro-inflammatory molecules into the extracellular milieu, thereby eliciting inflammation and immune responses. Recent studies have significantly advanced our knowledge of the mechanisms and physiological roles of pyroptosis. GSDMs are activated by caspases and granzymes, most of which can also induce apoptosis in different situations, for example where the expression of GSDMs is too low to cause pyroptosis; that is, caspase/granzyme-induced apoptosis can be switched to pyroptosis by the expression of GSDMs. Pyroptosis appears to facilitate the killing of tumor cells by cytotoxic lymphocytes, and it may also reprogram the tumor microenvironment to an immunostimulatory state. Understanding pyroptosis may help the development of cancer immunotherapy. In this review article, recent findings on the mechanisms and roles of pyroptosis are introduced. The effectiveness and limitations of pyroptosis in inducing antitumor immunity are also discussed.
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Affiliation(s)
- Kohsuke Tsuchiya
- Division of Immunology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan; ; Tel.: +81-76-264-6721
- Institute for Frontier Science Initiative (InFiniti), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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