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Liu RJ, Yu XD, Yan SS, Guo ZW, Zao XB, Zhang YS. Ferroptosis, pyroptosis and necroptosis in hepatocellular carcinoma immunotherapy: Mechanisms and immunologic landscape (Review). Int J Oncol 2024; 64:63. [PMID: 38757345 PMCID: PMC11095606 DOI: 10.3892/ijo.2024.5651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/07/2024] [Indexed: 05/18/2024] Open
Abstract
Hepatocellular carcinoma (HCC), one of the leading causes of cancer‑related mortality worldwide, is challenging to identify in its early stages and prone to metastasis, and the prognosis of patients with this disease is poor. Treatment options for HCC are limited, with even radical treatments being associated with a risk of recurrence or transformation in the short term. Furthermore, the multi‑tyrosine kinase inhibitors approved for first‑line therapy have marked drawbacks, including drug resistance and side effects. The rise and breakthrough of immune checkpoint inhibitors (ICIs) have provided a novel direction for HCC immunotherapy but these have the drawback of low response rates. Since avoiding apoptosis is a universal feature of cancer, the induction of non‑apoptotic regulatory cell death (NARCD) is a novel strategy for HCC immunotherapy. At present, NARCD pathways, including ferroptosis, pyroptosis and necroptosis, are novel potential forms of immunogenic cell death, which have synergistic effects with antitumor immunity, transforming immune 'cold' tumors into immune 'hot' tumors and exerting antitumor effects. Therefore, these pathways may be targeted as a novel treatment strategy for HCC. In the present review, the roles of ferroptosis, pyroptosis and necroptosis in antitumor immunity in HCC are discussed, and the relevant targets and signaling pathways, and the current status of combined therapy with ICIs are summarized. The prospects of targeting ferroptosis, pyroptosis and necroptosis in HCC immunotherapy are also considered.
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Affiliation(s)
- Rui-Jia Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Xu-Dong Yu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
- Beijing Tumor Minimally Invasive Medical Center of Integrated Traditional Chinese and Western Medicine, Beijing 101121, P.R. China
| | - Shao-Shuai Yan
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Zi-Wei Guo
- Guang'anmen Hospital, Chinese Academy of Traditional Chinese Medicine, Beijing 100053, P.R. China
| | - Xiao-Bin Zao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Yao-Sheng Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
- Beijing Tumor Minimally Invasive Medical Center of Integrated Traditional Chinese and Western Medicine, Beijing 101121, P.R. China
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Wallace HL, Russell RS. Inflammatory Consequences: Hepatitis C Virus-Induced Inflammasome Activation and Pyroptosis. Viral Immunol 2024; 37:126-138. [PMID: 38593460 DOI: 10.1089/vim.2023.0138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024] Open
Abstract
Hepatitis C virus (HCV), despite the availability of effective direct-acting antivirals (DAAs) that clear the virus from >95% of individuals treated, continues to cause significant health care burden due to disease progression that can lead to fibrosis, cirrhosis, and/or hepatocellular carcinoma. The fact that some people who are treated with DAAs still go on to develop worsening liver disease warrants further study into the immunopathogenesis of HCV. Many viral infections, including HCV, have been associated with activation of the inflammasome/pyroptosis pathway. This inflammatory cell death pathway ultimately results in cell lysis and release of inflammatory cytokines, IL-18 and IL-1β. This review will report on studies that investigated HCV and inflammasome activation/pyroptosis. This includes clinical in vivo data showing elevated pyroptosis-associated cytokines in the blood of individuals living with HCV, studies of genetic associations of pyroptosis-related genes and development of liver disease, and in vitro studies aimed at understanding the mechanism of pyroptosis induced by HCV. Finally, we discuss major gaps in understanding and outstanding questions that remain in the field of HCV-induced pyroptosis.
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Affiliation(s)
- Hannah L Wallace
- Immunology and Infectious Diseases Group, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St John's, Canada
| | - Rodney S Russell
- Immunology and Infectious Diseases Group, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St John's, Canada
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3
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Lee J, Ou JHJ. HCV-induced autophagy and innate immunity. Front Immunol 2024; 15:1305157. [PMID: 38370419 PMCID: PMC10874285 DOI: 10.3389/fimmu.2024.1305157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/19/2024] [Indexed: 02/20/2024] Open
Abstract
The interplay between autophagy and host innate immunity has been of great interest. Hepatitis C virus (HCV) impedes signaling pathways initiated by pattern-recognition receptors (PRRs) that recognize pathogens-associated molecular patterns (PAMPs). Autophagy, a cellular catabolic process, delivers damaged organelles and protein aggregates to lysosomes for degradation and recycling. Autophagy is also an innate immune response of cells to trap pathogens in membrane vesicles for removal. However, HCV controls the autophagic pathway and uses autophagic membranes to enhance its replication. Mitophagy, a selective autophagy targeting mitochondria, alters the dynamics and metabolism of mitochondria, which play important roles in host antiviral responses. HCV also alters mitochondrial dynamics and promotes mitophagy to prevent premature cell death and attenuate the interferon (IFN) response. In addition, the dysregulation of the inflammasomal response by HCV leads to IFN resistance and immune tolerance. These immune evasion properties of HCV allow HCV to successfully replicate and persist in its host cells. In this article, we discuss HCV-induced autophagy/mitophagy and its associated immunological responses and provide a review of our current understanding of how these processes are regulated in HCV-infected cells.
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Affiliation(s)
| | - J.-H. James Ou
- Department of Molecular Microbiology and Immunology, University of Southern California, Keck School of Medicine, Los Angeles, CA, United States
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Stoyanova G, Jabeen S, Landazuri Vinueza J, Ghosh Roy S, Lockshin RA, Zakeri Z. Zika virus triggers autophagy to exploit host lipid metabolism and drive viral replication. Cell Commun Signal 2023; 21:114. [PMID: 37208782 DOI: 10.1186/s12964-022-01026-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 12/24/2022] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Zika virus (ZIKV), an arbovirus of global concern, has been associated with neurological complications including microcephaly in newborns and Guillain-Barré syndrome in adults. Like other flaviviruses, ZIKV depends on cholesterol to facilitate its replication; thus, cholesterol has been proposed as a therapeutic target to treat the infection using FDA-approved statins. Cholesterol is stored in intracellular lipid droplets (LD) in the form of cholesterol esters and can be regulated by autophagy. We hypothesize that the virus hijacks autophagy machinery as an early step to increase the formation of LD and viral replication, and that interference with this pathway will limit reproduction of virus. METHODS We pretreated MDCK cells with atorvastatin or other inhibitors of autophagy prior to infection with ZIKV. We measured viral expression by qPCR for NS1 RNA and immunofluorescence for Zika E protein. RESULTS Autophagy increases in virus-infected cells as early as 6 h post infection (hpi). In the presence of atorvastatin, LD are decreased, and cholesterol is reduced, targeting key steps in viral replication, resulting in suppression of replication of ZIKV is suppressed. Other both early- and late-acting autophagy inhibitors decrease both the number of LD and viral replication. Bafilomycin renders cholesterol is inaccessible to ZIKV. We also confirm previous reports of a bystander effect, in which neighboring uninfected cells have higher LD counts compared to infected cells. CONCLUSIONS We conclude that atorvastatin and inhibitors of autophagy lead to lower availability of LD, decreasing viral replication. We conclude that bafilomycin A1 inhibits viral expression by blocking cholesterol esterification to form LD. Video Abstract.
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Affiliation(s)
- Gloria Stoyanova
- Department of Biology, CUNY Queens College, Flushing, NY, 11367, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Sidra Jabeen
- Department of Biology, CUNY Queens College, Flushing, NY, 11367, USA
- Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - Joselyn Landazuri Vinueza
- Department of Biology, CUNY Queens College, Flushing, NY, 11367, USA
- Department of Microbiology, University of Washington, Seattle, WA, 98195, USA
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Sounak Ghosh Roy
- Department of Biology, CUNY Queens College, Flushing, NY, 11367, USA
- Henry Jackson Foundation for the Advancement of Military Medicine, Silver Spring, MD, 20910, USA
| | - Richard A Lockshin
- Department of Biological Sciences, St. John's University, Jamaica, NY, 11439, USA
| | - Zahra Zakeri
- Department of Biology, CUNY Queens College, Flushing, NY, 11367, USA.
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Wang D, Wan X. Progress in the study of molecular mechanisms of cell pyroptosis in tumor therapy. Int Immunopharmacol 2023; 118:110143. [PMID: 37030114 DOI: 10.1016/j.intimp.2023.110143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
Pyroptosis, also known as cellular inflammatory necrosis, is a programmed cell death mediated by the Gasdermin family of proteins. The mechanisms by which pyroptosis occurs are divided into the GSDMD-mediated Caspase-1 and Caspase-4/-5/-11-dependent classical inflammatory vesicle pathway and the GSDME-mediated Caspase-3 and granzyme-dependent non-classical inflammatory vesicle pathways, among others. Recent studies have shown that pyroptosis has both inhibitory and promotive effects on tumor development. Pyroptosis induction also plays a dual role in antitumor immunotherapy: on the one hand, it suppresses antitumor immunity by promoting the release of inflammatory factors, and on the other hand, it inhibits tumor cell proliferation by triggering antitumor inflammatory responses. In addition, cell scorching plays an essential role in chemotherapy. It has been found that natural drugs modulating the induction of cell scorch are necessary to treat tumors. Therefore, studying the specific mechanisms of cell pyroptosis in different tumors can provide more ideas for developing oncology drugs. In this paper, we review the molecular mechanisms of pyroptosis and the role of pyroptosis in tumor development and treatment to provide new targets for clinical tumor treatment, prognosis, and antitumor drug development.
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Tang YL, Tao Y, Zhu L, Shen JL, Cheng H. Role of NLRP3 inflammasome in hepatocellular carcinoma: A double-edged sword. Int Immunopharmacol 2023; 118:110107. [PMID: 37028274 DOI: 10.1016/j.intimp.2023.110107] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/02/2023] [Accepted: 03/24/2023] [Indexed: 04/09/2023]
Abstract
In recent years, the study of NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome has become a hot topic, especially its role in various tumors. The incidence of hepatocellular carcinoma is ranked in the top five in China. Hepatocellular carcinoma (HCC) is the predominant and typical form of primary liver cancer. Due to the close relationship between NLRP3 inflammasome and cancers, many studies have investigated its role in HCC. The results suggest that NLRP3 inflammasome participates in both tumor growth inhibition and tumor growth promotion in HCC. Therefore, this review elaborates on the relationship between NLRP3 and HCC and explains its role in HCC. In addition, the potential of NLRP3 as a therapeutic target for cancer therapy is explored, summarizing and classifying impacts of and processes underlying different NLRP3 inflammasome-targeting drugs on HCC.
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Affiliation(s)
- Ying-Le Tang
- Medical College, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Institute of Translational Medicine, Yangzhou University, Jiangsu, Yangzhou, China
| | - Yan Tao
- Medical College, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Institute of Translational Medicine, Yangzhou University, Jiangsu, Yangzhou, China
| | - Lin Zhu
- Medical College, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Institute of Translational Medicine, Yangzhou University, Jiangsu, Yangzhou, China
| | - Jia-Lin Shen
- Medical College, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Institute of Translational Medicine, Yangzhou University, Jiangsu, Yangzhou, China
| | - Hong Cheng
- Medical College, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Institute of Translational Medicine, Yangzhou University, Jiangsu, Yangzhou, China.
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Wen J, Xuan B, Liu Y, Wang L, He L, Meng X, Zhou T, Wang Y. NLRP3 inflammasome-induced pyroptosis in digestive system tumors. Front Immunol 2023; 14:1074606. [PMID: 37081882 PMCID: PMC10110858 DOI: 10.3389/fimmu.2023.1074606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/03/2023] [Indexed: 04/07/2023] Open
Abstract
Programmed cell death (PCD) refers to cell death in a manner that depends on specific genes encoding signals or activities. PCD includes apoptosis, pyroptosis, autophagy and necrosis (programmed necrosis). Among these mechanisms, pyroptosis is mediated by the gasdermin family and is accompanied by inflammatory and immune responses. When pathogens or other danger signals are detected, cytokine action and inflammasomes (cytoplasmic multiprotein complexes) lead to pyroptosis. The relationship between pyroptosis and cancer is complex and the effect of pyroptosis on cancer varies in different tissue and genetic backgrounds. On the one hand, pyroptosis can inhibit tumorigenesis and progression; on the other hand, pyroptosis, as a pro-inflammatory death, can promote tumor growth by creating a microenvironment suitable for tumor cell growth. Indeed, the NLRP3 inflammasome is known to mediate pyroptosis in digestive system tumors, such as gastric cancer, pancreatic ductal adenocarcinoma, gallbladder cancer, oral squamous cell carcinoma, esophageal squamous cell carcinoma, in which a pyroptosis-induced cellular inflammatory response inhibits tumor development. The same process occurs in hepatocellular carcinoma and some colorectal cancers. The current review summarizes mechanisms and pathways of pyroptosis, outlining the involvement of NLRP3 inflammasome-mediated pyroptosis in digestive system tumors.
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Affiliation(s)
- Jiexia Wen
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Bin Xuan
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yang Liu
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Liwei Wang
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Li He
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Xiangcai Meng
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Tao Zhou
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yimin Wang
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
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Liu T, Shao QQ, Wang WJ, Liu TL, Jin XM, Xu LJ, Huang GY, Chen Z. Chinese herbal prescription JieZe-1 inhibits caspase-1-dependent pyroptosis induced by herpes simplex virus-2 infection in vitro. JOURNAL OF INTEGRATIVE MEDICINE 2023; 21:277-288. [PMID: 36973158 DOI: 10.1016/j.joim.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 10/19/2022] [Indexed: 03/11/2023]
Abstract
OBJECTIVE JieZe-1 (JZ-1), a Chinese herbal prescription, has an obvious effect on genital herpes, which is mainly caused by herpes simplex virus type 2 (HSV-2). Our study aimed to address whether HSV-2 induces pyroptosis of VK2/E6E7 cells and to investigate the anti-HSV-2 activity of JZ-1 and the effect of JZ-1 on caspase-1-dependent pyroptosis. METHODS HSV-2-infected VK2/E6E7 cells and culture supernate were harvested at different time points after the infection. Cells were co-treated with HSV-2 and penciclovir (0.078125 mg/mL) or caspase-1 inhibitor VX-765 (24 h pretreatment with 100 μmol/L) or JZ-1 (0.078125-50 mg/mL). Cell counting kit-8 assay and viral load analysis were used to evaluate the antiviral activity of JZ-1. Inflammasome activation and pyroptosis of VK2/E6E7 cells were analyzed using microscopy, Hoechst 33342/propidium iodide staining, lactate dehydrogenase release assay, gene and protein expression, co-immunoprecipitation, immunofluorescence, and enzyme-linked immunosorbent assay. RESULTS HSV-2 induced pyroptosis of VK2/E6E7 cells, with the most significant increase observed 24 h after the infection. JZ-1 effectively inhibited HSV-2 (the 50% inhibitory concentration = 1.709 mg/mL), with the 6.25 mg/mL dose showing the highest efficacy (95.76%). JZ-1 (6.25 mg/mL) suppressed pyroptosis of VK2/E6E7 cells. It downregulated the inflammasome activation and pyroptosis via inhibiting the expression of nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing protein 3 (P < 0.001) and interferon-γ-inducible protein 16 (P < 0.001), and their interactions with apoptosis-associated speck-like protein containing a caspase recruitment domain, and reducing cleaved caspase-1 p20 (P < 0.01), gasdermin D-N (P < 0.01), interleukin (IL)-1β (P < 0.001), and IL-18 levels (P < 0.001). CONCLUSION JZ-1 exerts an excellent anti-HSV-2 effect in VK2/E6E7 cells, and it inhibits caspase-1-dependent pyroptosis induced by HSV-2 infection. These data enrich our understanding of the pathologic basis of HSV-2 infection and provide experimental evidence for the anti-HSV-2 activity of JZ-1. Please cite this article as: Liu T, Shao QQ, Wang WJ, Liu TL, Jin XM, Xu LJ, Huang GY, Chen Z. Chinese herbal prescription JieZe-1 inhibits caspase-1-dependent pyroptosis induced by herpes simplex virus-2 infection in vitro. J Integr Med. 2023; Epub ahead of print.
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Affiliation(s)
- Tong Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Qing-Qing Shao
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Wen-Jia Wang
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Tian-Li Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xi-Ming Jin
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Li-Jun Xu
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Guang-Ying Huang
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhuo Chen
- Institute of Integrated Traditional Chinese and Western Medicine, Department of Traditional Chinese Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China.
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Wei KC, Wei WJ, Liao CL, Chang TH. Discrepant Activation Pattern of Inflammation and Pyroptosis Induced in Dermal Fibroblasts in Response to Dengue Virus Serotypes 1 and 2 and Nonstructural Protein 1. Microbiol Spectr 2023; 11:e0358622. [PMID: 36629424 PMCID: PMC9927091 DOI: 10.1128/spectrum.03586-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Four serotypes of dengue virus (DENV-1 to DENV-4) cause mild to severe disease in humans through infected mosquito bites. Dermal fibroblasts were found to be susceptible to DENV, and this may play a critical role in establishing the initial infection stage. However, the cellular response induced by the different DENV serotypes in dermal fibroblasts during the early stage of infection remains unclear. To determine this, normal human dermal fibroblast WS1 cells were infected with DENV-1 or DENV-2. Compared with the response elicited by DENV-1 infection, DENV-2 induced a stronger innate inflammatory response and cell death in the WS1 cells. However, DENV-1 activated a higher level of pyroptosis signaling than did DENV-2, which was associated with higher virion production. Caspase-1 inhibitor Ac-YVAD-cmk and imipramine, an antidepressant drug, reduced DENV-mediated caspase-1 and interleukin 1β (IL-β) cleavage in the pyroptosis pathway. Ac-YVAD-cmk and imipramine downregulated DENV virion production in WS1 cells. Furthermore, DENV-1 and DENV-2 NS1 proteins promoted diverse activation levels of cell death, inflammatory response, and activation of caspase-1 and IL-β in dermal fibroblasts at different time points. Collectively, these data suggest that DENV-1, DENV-2, and their nonstructural protein 1 (NS1) induce discrepant activation patterns of inflammation and pyroptosis in dermal fibroblasts. The pyroptosis caused by virus and NS1 may facilitate DENV replication in dermal fibroblasts. IMPORTANCE Skin fibroblasts are the primary cells of DENV infection through mosquito bites. Establishing a successful infection in dermal fibroblasts might be critical for dengue disease. However, the cellular response induced by DENV in dermal fibroblasts remains unclear. In this in vitro study, we found that DENV-2 and DENV-1 showed different time course patterns of virus replication and inflammation in dermal fibroblasts. We demonstrated that DENV-1 and DNEV-2 and their viral protein NS1 activate the cellular pyroptosis response to regulate virus replication in dermal fibroblasts. This finding suggests that pyroptosis activation in the DENV primary inoculation site plays a role in the establishment of a DENV infection.
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Affiliation(s)
- Kai-Che Wei
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Wan-Ju Wei
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ching-Len Liao
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli, Taiwan
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Tsung-Hsien Chang
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
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Passos-Castilho AM, Udhesister STP, Fontaine G, Jeong D, Dickie M, Lund C, Russell R, Kronfli N. The 11th Canadian Symposium on Hepatitis C Virus: 'Getting back on track towards hepatitis C elimination'. CANADIAN LIVER JOURNAL 2023; 6:56-69. [PMID: 36908576 PMCID: PMC9997521 DOI: 10.3138/canlivj-2022-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 08/20/2022] [Indexed: 11/05/2022]
Abstract
Hepatitis C virus (HCV) affects approximately 204,000 Canadians. Safe and effective direct-acting antiviral therapies have contributed to decreased rates of chronic HCV infection and increased treatment uptake in Canada, but major challenges for HCV elimination remain. The 11th Canadian Symposium on Hepatitis C Virus took place in Ottawa, Ontario on May 13, 2022 as a hybrid conference themed 'Getting back on track towards hepatitis C elimination.' It brought together research scientists, clinicians, community health workers, patient advocates, community members, and public health officials to discuss priorities for HCV elimination in the wake of the COVID-19 pandemic, which had devastating effects on HCV care in Canada, particularly on priority populations. Plenary sessions showcased topical research from prominent international and national researchers, complemented by select abstract presentations. This event was hosted by the Canadian Network on Hepatitis C (CanHepC), with support from the Public Health Agency of Canada and the Canadian Institutes of Health Research and in partnership with the Canadian Liver Meeting. CanHepC has an established record in HCV research and in advocacy activities to address improved diagnosis and treatment, and immediate and long-term needs of those affected by HCV infection. The Symposium addressed the remaining challenges and barriers to HCV elimination in priority populations and principles for meaningful engagement of Indigenous communities and individuals with living and lived experience in HCV research. It emphasized the need for disaggregated data and simplified pathways for creating and monitoring interventions for equitably achieving elimination targets.
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Affiliation(s)
- Ana Maria Passos-Castilho
- Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Sasha Tejna Persaud Udhesister
- Faculté de Médecine, Université de Montréal, Centre de Recherche du Centre hospitalier de l'Université de Montré (CRCHUM), Montréal, Québec, Canada
| | - Guillaume Fontaine
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Dahn Jeong
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Melisa Dickie
- Community Health Programming, CATIE, Toronto, Ontario, Canada
| | | | - Rodney Russell
- Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Nadine Kronfli
- Department of Medicine, Division of Infectious Diseases and Chronic Viral Illness Service, McGill University Health Centre, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
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Wang S, Gao S, Shan L, Qian X, Luan J, Lv X. Comprehensive genomic signature of pyroptosis-related genes and relevant characterization in hepatocellular carcinoma. PeerJ 2023; 11:e14691. [PMID: 36650832 PMCID: PMC9840857 DOI: 10.7717/peerj.14691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/14/2022] [Indexed: 01/15/2023] Open
Abstract
Background Currently, the most predominant type of liver cancer is hepatocellular carcinoma (HCC), which is also the fourth leading cause of cancer-related death in the global population. Pyroptosis is an emerging form of cell death that affects the prognosis of cancer patients by modulating tumor cell migration, proliferation and invasion. However, the evaluation of pyroptosis in the prognosis of HCC is still insufficient. Methods A total of 365 HCC patients from the TCGA-LIHC cohort were classified into two distinct subtypes using consensus clustering of pyroptosis-related genes (PRGs). Following univariate Cox analysis of differentially expressed genes between subtypes, we established a prognostic model (PRGs-score, PRGS) by LASSO Cox analysis. We further tested the predictive power of the prognostic model in the ICGC (LIRI-JP) and GEO (GSE14520) cohorts. The tumor microenvironment (TME) was studied using the CIBERSORT. The enrichment scores for immune cells and immune functions in low- and high-PRGS groups were assessed using ssGSEA. The IMvigor210 cohort was used to investigate the immunotherapy efficacy. Furthermore, we validated the expression of prognostic genes in PRGS by RT-qPCR in vitro. Results The subtyping of HCC based on PRGs exhibited distinct clinical characteristics. We developed a prognostic model PRGS by differentially expressed genes between different subtypes. The results showed that PRGS could well forecast the survival of HCC patients in different cohorts and was associated with the immune microenvironment. Moreover, PRGS was considered to be an independent prognostic risk factor and superior to other pyroptosis-related signatures. Low-PRGS implied greater immune cell infiltration and better overall survival with immunotherapy. The results of RT-qPCR also showed that prognostic genes were significantly dysregulated in HCC. Conclusions PRGS has promising application in forecasting the prognosis of HCC patients, and its relationship with the immune microenvironment provides a basis for the subsequent treatment and research of HCC.
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Affiliation(s)
- Sheng Wang
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui, China,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Anhui Province Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Institute for Liver Disease, Anhui Medical University, Hefei, Anhui, China
| | - Songsen Gao
- Department of Orthopedics (Spinal Surgery), The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Liang Shan
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Anhui Province Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Institute for Liver Disease, Anhui Medical University, Hefei, Anhui, China
| | - Xueyi Qian
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui, China
| | - Jiajie Luan
- Department of Pharmacy, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui, China
| | - Xiongwen Lv
- The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Anhui Province Key Laboratory of Major Autoimmune Diseases, School of Pharmacy, Institute for Liver Disease, Anhui Medical University, Hefei, Anhui, China
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12
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Abstract
Pyroptosis is a form of lytic, programmed cell death that functions as an innate immune effector mechanism to facilitate host defense against pathogenic microorganisms, including viruses. This type of proinflammatory cell death is orchestrated by proteolytic activation of human or mouse caspase-1, mouse caspase-11 and human caspase-4 and caspase-5 in response to infectious and inflammatory stimuli. Induction of pyroptosis requires either a canonical inflammasome responsible for caspase-1 activation or a noncanonical complex composed of caspase-11 in mice or caspase-4 or caspase-5 in humans. Recent studies have identified the pore-forming protein gasdermin D, a substrate of these inflammatory caspases, as an executioner of pyroptosis. The membrane pores formed by gasdermin D facilitate release of proinflammatory cytokines IL-1β and IL-18 and consequent biologic effects of these cytokines together with other released components. Pyroptosis, like other forms of programmed cell death, helps eliminate infected cells and thereby restricts the replicative niche, undermining survival and proliferation of intracellular pathogens. This includes viruses as well as bacteria, where ample evidence supports a critical role for inflammasome effector functions and cell death in host defense. Viruses have evolved their own mechanisms to modulate inflammasome signaling and pyroptosis. Here, we review the current literature regarding the role of pyroptosis in antiviral immune responses.
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Affiliation(s)
- Teneema Kuriakose
- Department of Immunology, St. Jude Children's Research Hospital, MS #351, 262 Danny Thomas Place, 38105-3678, Memphis, TN, USA
| | - Thirumala-Devi Kanneganti
- Department of Immunology, St. Jude Children's Research Hospital, MS #351, 262 Danny Thomas Place, 38105-3678, Memphis, TN, USA.
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13
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Zhang Y, Li C, Wang Z, Wang T, Zhou Y, Zheng L. Blocking CXC Motif Chemokine Ligand 2 Ameliorates Diabetic Peripheral Neuropathy via Inhibiting Apoptosis and NLRP3 Inflammasome Activation. Biol Pharm Bull 2023; 46:672-683. [PMID: 37121693 DOI: 10.1248/bpb.b22-00680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Evidence suggests that CXC motif chemokines are involved in neuronal injury and inflammatory processes. Bioinformatics analysis by using data from the Gene Expression Omnibus (GEO) database was performed and identified CXC motif chemokine ligands (CXCLs) as associated with diabetic peripheral neuropathy (DPN). The present study focused on CXC motif chemokine ligand 2 (CXCL2), and the role and potential mechanisms of CXCL2 in DPN were investigated. The DPN rat model was generated by streptozotocin (STZ) injection in vivo, and high-glucose (HG)-stimulated Schwann cell RSC96 was considered a cell model of DPN in vitro. Neuropathic symptoms of DPN were explored by neurological tests and histological examinations. DPN rats showed a decreased level of motor nerve conduction velocity (MNCV) along with typical histological changes. CXCL2 expression was significantly increased in STZ-induced DPN rat sciatic nerve and HG-induced RSC96 cells. Functionally, CXCL2 knockdown inhibited cell apoptosis and inflammation activation under diabetic conditions in vitro and in vivo. CXCL2 knockdown increased cell viability in HG-treated RSC96 cells and reduced apoptosis concerning the decreased expression of cleaved Caspase 3/9. In addition, CXCL2 knockdown protected against NOD-like receptor protein 3 (NLRP3) inflammasome activation and reduced levels of pro-inflammatory cytokines, interleukin (IL)-1β and IL-18. The repressive effects of CXCL2 knockdown on inflammasome activation under HG conditions were significantly abolished by treatment of the NLRP3 activator nigericin. In conclusion, these results indicated that CXCL2 knockdown exhibited amelioration of hyperglycemia-induced DPN by inhibiting cell apoptosis and NLRP3 inflammasome activation, suggesting that targeting CXCL2 might be a potential strategy for DPN treatment.
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Affiliation(s)
- Yu Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University
| | - Chong Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University
| | - Zhifang Wang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University
| | - Tingting Wang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University
| | - Yahui Zhou
- Department of Neurology, The Third Affiliated Hospital of Xinxiang Medical University
| | - Lili Zheng
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Zhengzhou University
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14
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Liu T, Shao Q, Wang W, Ma Y, Liu T, Jin X, Fang J, Huang G, Chen Z. Integrating network pharmacology and experimental validation to decipher the mechanism of the Chinese herbal prescription JieZe-1 in protecting against HSV-2 infection. PHARMACEUTICAL BIOLOGY 2022; 60:451-466. [PMID: 35180012 PMCID: PMC8865133 DOI: 10.1080/13880209.2022.2038209] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/12/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
CONTEXT The Chinese herbal prescription JieZe-1 (JZ-1) is effective against HSV-2 (Herpes simplex virus type 2) infection. However, its mechanism remains unclear. OBJECTIVE To explore the mechanism of JZ-1 in protecting against HSV-2 infection. MATERIALS AND METHODS Using the methods of network pharmacology, the hub components and targets were screened and functionally enriched. We established a genital herpes (GH) mouse model and observe the disease characteristics. Then, the GH mice in different groups (10 per/group) were treated with 20 μL JZ-1 gel (2.5, 1.5, and 0.5 g/mL), acyclovir gel (0.03 g/mL), or plain carbomer gel twice a day. The symptom score, vulvar histomorphology, and virus load were measured. The critical proteins of caspase-1-dependent pyroptosis were analysed by microscopy, co-immunoprecipitation, western blotting, and ELISA. Molecular docking was also performed. RESULTS Network pharmacology analysis identified 388 JZ-1 targets related to HSV-2 infection, with 36 hub targets and 21 hub components screened. The TCID50 of HSV-2 was 1 × 10-7/0.1 mL. JZ-1 gel (2.5 g/mL) can effectively reduce the symptom score (81.23%), viral load (98.42%) and histopathological changes, and significantly inhibit the proteins expression of caspase-1-dependent pyroptosis in GH mice (p< 0.05). The molecular docking test showed a good binding potency between 11 components and caspase-1 or interleukin (IL)-1β. DISCUSSION AND CONCLUSIONS The present study demonstrated that JZ-1 protected mice from HSV-2 infection and inhibit the caspase-1-dependent pyroptosis in GH mice. It is of significance for the second development of JZ-1 and the exploration of new drugs.
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Affiliation(s)
- Tong Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingqing Shao
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenjia Wang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yonggui Ma
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tianli Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ximing Jin
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianguo Fang
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guangying Huang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhuo Chen
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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15
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Aggan HE, Mahmoud S, Deeb NE, Eleishi I, El-Shendidi A. Significance of elevated serum and hepatic NOD-like receptor pyrin domain containing 3 (NLRP3) in hepatitis C virus-related liver disease. Sci Rep 2022; 12:19528. [PMID: 36376416 PMCID: PMC9663582 DOI: 10.1038/s41598-022-22022-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022] Open
Abstract
NOD-like receptor pyrin domain containing 3 (NLRP3) is a microbial and danger signal sensor that acts as a regulator of inflammation via activation of Caspase-1 (CASP1) and has been identified as a major contributor to human liver diseases. The present study was conducted to investigate the association between NLRP3 and the progression of hepatitis C virus (HCV)-related liver disease. Serum NLRP3 levels were analyzed in 49 patients with chronic HCV infection and 18 healthy controls and liver tissues from 34 patients were examined to assess the protein expression of NLRP3 and its activation marker CASP1 using immunohistochemical staining. The results showed that the median serum NLRP3 levels was significantly higher in HCV-infected patients compared with healthy controls (1040 pg/ml vs 695 pg/ml respectively, P < 0.001) and were positively correlated with hepatic NLRP3 and CASP1 expression (r = 0.749, P < 0.001 and r = 0.557, P = 0.001 respectively). The NLRP3 levels in serum and the liver significantly increased with worsening liver pathology and showed positive correlations with serum aminotransferases levels, HCV viremia, and albumin-bilirubin score (P < 0.05). The receiver operating characteristic curve analysis revealed a high diagnostic performance of serum NLRP3 in determining the extent of liver necroinflammation, fibrosis, and steatosis (area under the curve = 0.951, 0.971, and 0.917 respectively, P < 0.001). In conclusion, NLRP3 plays an important role in liver disease progression during HCV infection via CASP1 activation and might be a promising therapeutic target. Serum NLRP3 could be an additional biomarker for liver inflammation and fibrosis.
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Affiliation(s)
- Hoda El Aggan
- grid.7155.60000 0001 2260 6941Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Sabah Mahmoud
- grid.7155.60000 0001 2260 6941Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nevine El Deeb
- grid.7155.60000 0001 2260 6941Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Islam Eleishi
- grid.7155.60000 0001 2260 6941Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Assem El-Shendidi
- grid.7155.60000 0001 2260 6941Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, Alexandria University, Alexandria, Egypt
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16
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Wallace HL, Russell RS. Promiscuous Inflammasomes: The False Dichotomy of RNA/DNA Virus-Induced Inflammasome Activation and Pyroptosis. Viruses 2022; 14:2113. [PMID: 36298668 PMCID: PMC9609106 DOI: 10.3390/v14102113] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 07/30/2023] Open
Abstract
It is well-known that viruses activate various inflammasomes, which can initiate the programmed cell death pathway known as pyroptosis, subsequently leading to cell lysis and release of inflammatory cytokines IL-1β and IL-18. This pathway can be triggered by various sensors, including, but not limited to, NLRP3, AIM2, IFI16, RIG-I, and NLRC4. Many viruses are known either to activate or inhibit inflammasomes as a part of the innate immune response or as a mechanism of pathogenesis. Early research in the field of virus-induced pyroptosis suggested a dichotomy, with RNA viruses activating the NLRP3 inflammasome and DNA viruses activating the AIM2 inflammasome. More recent research has shown that this dichotomy may not be as distinct as once thought. It seems many viruses activate multiple inflammasome sensors. Here, we detail which viruses fit the dichotomy as well as many that appear to defy this clearly false dichotomy. It seems likely that most, if not all, viruses activate multiple inflammasome sensors, and future research should focus on expanding our understanding of inflammasome activation in a variety of tissue types as well as virus activation of multiple inflammasomes, challenging biases that stemmed from early literature in this field. Here, we review primarily research performed on human viruses but also include details regarding animal viruses whenever possible.
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17
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Annual Meeting of the Canadian Association for the Study of the Liver (CASL), the Canadian Network on Hepatitis C (CanHepC), the Canadian Association of Hepatology Nurses (CAHN), and the Canadian NASH Network 2022 Abstracts. CANADIAN LIVER JOURNAL 2022; 5:169-317. [PMID: 35991483 PMCID: PMC9236590 DOI: 10.3138/canlivj.5.2.abst] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 09/17/2023]
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18
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Hurtado-Navarro L, Angosto-Bazarra D, Pelegrín P, Baroja-Mazo A, Cuevas S. NLRP3 Inflammasome and Pyroptosis in Liver Pathophysiology: The Emerging Relevance of Nrf2 Inducers. Antioxidants (Basel) 2022; 11:antiox11050870. [PMID: 35624734 PMCID: PMC9137763 DOI: 10.3390/antiox11050870] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/24/2022] [Accepted: 04/24/2022] [Indexed: 12/12/2022] Open
Abstract
Inflammasomes, particularly the nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain containing 3 (NLRP3) inflammasome, apparently serve as crucial regulators of the inflammatory response through the activation of Caspase-1 and induction of pro-inflammatory cytokines and pyroptotic cell death. Pyroptosis is a type of programmed cell death mediated by Caspase-1 cleavage of Gasdermin D and the insertion of its N-terminal fragment into the plasma membrane, where it forms pores, enabling the release of different pro-inflammatory mediators. Pyroptosis is considered not only a pro-inflammatory pathway involved in liver pathophysiology but also an important pro-fibrotic mediator. Diverse molecular mechanisms linking oxidative stress, inflammasome activation, pyroptosis, and the progression of liver pathologies have been documented. Numerous studies have indicated the protective effects of several antioxidants, with the ability to induce nuclear factor erythroid 2-related factor 2 (Nrf2) activity on liver inflammation and fibrosis. In this review, we have summarised recent studies addressing the role of the NLRP3 inflammasome and pyroptosis in the pathogenesis of various hepatic diseases, highlighting the potential application of Nrf2 inducers in the prevention of pyroptosis as liver protective compounds.
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Affiliation(s)
- Laura Hurtado-Navarro
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain; (L.H.-N.); (D.A.-B.); (P.P.)
| | - Diego Angosto-Bazarra
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain; (L.H.-N.); (D.A.-B.); (P.P.)
| | - Pablo Pelegrín
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain; (L.H.-N.); (D.A.-B.); (P.P.)
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain
| | - Alberto Baroja-Mazo
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain; (L.H.-N.); (D.A.-B.); (P.P.)
- Correspondence: (A.B.-M.); (S.C.); Tel.: +34-868-885-039 (A.B.-M.); +34-868-885-031 (S.C.)
| | - Santiago Cuevas
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen de la Arrixaca, 30120 Murcia, Spain; (L.H.-N.); (D.A.-B.); (P.P.)
- Correspondence: (A.B.-M.); (S.C.); Tel.: +34-868-885-039 (A.B.-M.); +34-868-885-031 (S.C.)
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19
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Wang Z, Yu H, Zhuang W, Chen J, Jiang Y, Guo Z, Huang X, Liu Q. Cell pyroptosis in picornavirus and its potential for treating viral infection. J Med Virol 2022; 94:3570-3580. [PMID: 35474513 DOI: 10.1002/jmv.27813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/17/2022] [Accepted: 04/25/2022] [Indexed: 11/08/2022]
Abstract
Cell pyroptosis has received increased attention due to the associations between innate immunity and disease, and it has become a major focal point recently due to in-depth studies of cancer. With increased research on pyroptosis, scientists have discovered that it has an essential role in viral infections, especially in the occurrence and development of some picornavirus infections. Many picornaviruses, including Coxsackievirus, a71 enterovirus, human rhinovirus, encephalomyocarditis virus, and foot-and-mouth disease virus induce pyroptosis to varying degrees. This review summarized the mechanisms by which these viruses induce cell pyroptosis, which can be an effective defense against pathogen infection. However, excessive inflammasome activation or pyroptosis also can damage the host's health or aggravate disease progression. Careful approaches that acknowledge this dual effect will aid in the exploration of picornavirus infections and the mechanisms that produce the inflammatory response. This information will promote the development of drugs that can inhibit cell pyroptosis and provide new avenues for future clinical treatment. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zheng Wang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006.,School of Queen Mary of Nanchang University, Nanchang, China, 330006
| | - Haolin Yu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006.,School of Ophthalmology and Optometry of Nanchang University, Nanchang, China, 330006
| | - Wenyue Zhuang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006.,The Second Clinical Medical College, Nanchang University, Nanchang, China, 30006
| | - Jingxuan Chen
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006.,School of Ophthalmology and Optometry of Nanchang University, Nanchang, China, 330006
| | - Yi Jiang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006.,School of Ophthalmology and Optometry of Nanchang University, Nanchang, China, 330006
| | - Zhicheng Guo
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006
| | - Xiaotian Huang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006
| | - Qiong Liu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China, 330006
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20
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Cell pyroptosis in health and inflammatory diseases. Cell Death Dis 2022; 8:191. [PMID: 35411030 PMCID: PMC8995683 DOI: 10.1038/s41420-022-00998-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 02/07/2023]
Abstract
Inflammation is a defense mechanism that can protect the host against microbe invasion. A proper inflammatory response can maintain homeostasis, but continuous inflammation can cause many chronic inflammatory diseases. To properly treat inflammatory disorders, the molecular mechanisms underlying the development of inflammation need to be fully elucidated. Pyroptosis is an inflammation-related cell death program, that is different from other types of cell death. Pyroptosis plays crucial roles in host defense against infections through the release of proinflammatory cytokines and cell lysis. Accumulating evidence indicates that pyroptosis is associated with inflammatory diseases, such as arthritis, pneumonia, and colonitis. Furthermore, pyroptosis is also closely involved in cancers that develop as a result of inflammation, such as liver cancer, esophageal cancer, pancreatic cancer, and colon cancer. Here, we review the function and mechanism of pyroptosis in inflammatory disease development and provide a comprehensive description of the potential role of pyroptosis in inflammatory diseases.
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21
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Fader Kaiser CM, Romano PS, Vanrell MC, Pocognoni CA, Jacob J, Caruso B, Delgui LR. Biogenesis and Breakdown of Lipid Droplets in Pathological Conditions. Front Cell Dev Biol 2022; 9:826248. [PMID: 35198567 PMCID: PMC8860030 DOI: 10.3389/fcell.2021.826248] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/22/2021] [Indexed: 12/17/2022] Open
Abstract
Lipid droplets (LD) have long been considered as mere fat drops; however, LD have lately been revealed to be ubiquitous, dynamic and to be present in diverse organelles in which they have a wide range of key functions. Although incompletely understood, the biogenesis of eukaryotic LD initiates with the synthesis of neutral lipids (NL) by enzymes located in the endoplasmic reticulum (ER). The accumulation of NL leads to their segregation into nanometric nuclei which then grow into lenses between the ER leaflets as they are further filled with NL. The lipid composition and interfacial tensions of both ER and the lenses modulate their shape which, together with specific ER proteins, determine the proneness of LD to bud from the ER toward the cytoplasm. The most important function of LD is the buffering of energy. But far beyond this, LD are actively integrated into physiological processes, such as lipid metabolism, control of protein homeostasis, sequestration of toxic lipid metabolic intermediates, protection from stress, and proliferation of tumours. Besides, LD may serve as platforms for pathogen replication and defense. To accomplish these functions, from biogenesis to breakdown, eukaryotic LD have developed mechanisms to travel within the cytoplasm and to establish contact with other organelles. When nutrient deprivation occurs, LD undergo breakdown (lipolysis), which begins with the LD-associated members of the perilipins family PLIN2 and PLIN3 chaperone-mediated autophagy degradation (CMA), a specific type of autophagy that selectively degrades a subset of cytosolic proteins in lysosomes. Indeed, PLINs CMA degradation is a prerequisite for further true lipolysis, which occurs via cytosolic lipases or by lysosome luminal lipases when autophagosomes engulf portions of LD and target them to lysosomes. LD play a crucial role in several pathophysiological processes. Increased accumulation of LD in non-adipose cells is commonly observed in numerous infectious diseases caused by intracellular pathogens including viral, bacterial, and parasite infections, and is gradually recognized as a prominent characteristic in a variety of cancers. This review discusses current evidence related to the modulation of LD biogenesis and breakdown caused by intracellular pathogens and cancer.
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Affiliation(s)
- Claudio M Fader Kaiser
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
| | - Patricia S Romano
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
| | - M Cristina Vanrell
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
| | - Cristian A Pocognoni
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
| | - Julieta Jacob
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
| | - Benjamín Caruso
- Instituto de Investigaciones Biologicas y Tecnologicas, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Cordoba, Cordoba, Argentina
| | - Laura R Delgui
- CONICET Dr. Mario H. Burgos Institute of Histology and Embryology (IHEM), Mendoza, Argentina
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Shao S, Zhang Y, Li G, Yu Z, Cao Y, Zheng L, Zhang K, Han X, Shi Z, Cui H, Song X, Hong W, Han T. The dynamics of cell death patterns and regeneration during acute liver injury in mice. FEBS Open Bio 2022; 12:1061-1074. [PMID: 35184410 PMCID: PMC9063440 DOI: 10.1002/2211-5463.13383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/12/2021] [Accepted: 01/03/2022] [Indexed: 11/08/2022] Open
Abstract
Acute liver injury is a serious clinical syndrome with multiple causes and unclear pathological process. Here, CCl4‐ and D‐galactosamine/lipopolysaccharide (D‐gal/LPS)‐induced acute liver injury was established to explore the cell death patterns and determine whether or not liver regeneration occurred. In CCl4‐induced hepatic injury, three phases, including the early, progressive, and recovery phase, were considered based on alterations of serum transaminases and liver morphology. Moreover, in this model, cytokines exhibited double‐peak fluctuations; apoptosis and pyroptosis persisted throughout all phases; autophagy occurred in the early and the progressive phases; and sufficient and timely hepatocyte regeneration was observed only during the recovery phase. All of these phenomena contribute to mild liver injury and subsequent regeneration. Strikingly, only the early and progressive phases were observed in the D‐gal/LPS model. Slight pyroptosis occurred in the early phase but diminished in the progressive phase, while apoptosis, reduced autophagy, and slight but subsequently diminished regeneration occurred only during the progressive phase, accompanied by a strong cytokine storm, resulting in severe liver injury with high mortality. Taken together, our work reveals variable modes and dynamics of cell death and regeneration, which lead to different consequences for mild and severe acute liver injury, providing a helpful reference for clinical therapy and prognosis.
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Affiliation(s)
- Shuai Shao
- The School of Medicine NanKai University Tianjin China
| | - Yu Zhang
- Department of Hepatology and Gastroenterology The Third Central Clinical College of Tianjin Medical University Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University China
| | - Guantong Li
- Department of Hepatology and Gastroenterology The Third Central Clinical College of Tianjin Medical University Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University China
| | - Zhenjun Yu
- Department of Hepatology and Gastroenterology The Third Central Clinical College of Tianjin Medical University Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University China
| | - Yingying Cao
- Department of Hepatology and Gastroenterology The Third Central Clinical College of Tianjin Medical University Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University China
| | - Lina Zheng
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Kun Zhang
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Xiaohui Han
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Zhemin Shi
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Hongmei Cui
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Xiaomeng Song
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Wei Hong
- Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University Tianjin China
| | - Tao Han
- The School of Medicine NanKai University Tianjin China
- Department of Hepatology and Gastroenterology The Third Central Clinical College of Tianjin Medical University Department of Histology and Embryology School of Basic Medical Sciences Tianjin Medical University China
- Department of Hepatology and Gastroenterology Tianjin Union Medical Center Nankai University Tianjin China
- Department of Hepatology and Gastroenterology Tianjin Third Central Hospital affiliated to Nankai University Tianjin China
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23
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Wallace HL, Wang L, Gardner CL, Corkum CP, Grant MD, Hirasawa K, Russell RS. Crosstalk Between Pyroptosis and Apoptosis in Hepatitis C Virus-induced Cell Death. Front Immunol 2022; 13:788138. [PMID: 35237259 PMCID: PMC8882739 DOI: 10.3389/fimmu.2022.788138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/10/2022] [Indexed: 01/15/2023] Open
Abstract
Extensive inflammation in the liver is known to contribute to the pathogenesis of hepatitis C virus (HCV) infection. Apoptosis has, for a long time, been known to act as a mechanism of hepatocyte death, but our previous research also identified inflammasome-mediated pyroptosis in infected and uninfected bystander cells as an additional mechanism of HCV-induced cytopathicity. The purpose of this study was to investigate the mechanism of HCV-induced cell death and to determine the timing and relative contributions of apoptosis and pyroptosis during HCV infection. In a model employing a cell culture-adapted strain of JFH-1 HCV and Huh-7.5 hepatocyte-like cells, we found that pyroptosis occurred earlier than did apoptosis during infection. CRISPR knockout of NLRP3 resulted in decreased caspase-1 activation, but not complete elimination, indicating multiple sensors are likely involved in HCV-induced pyroptosis. Knockout of gasdermin-D resulted in increased activation of apoptosis-related caspase-3, suggesting potential crosstalk between the two cell death pathways. An unexpected decrease in activated caspase-1 levels was observed when caspase-3 was knocked out, implying that caspase-3 may have a role in the initiation of pyroptosis, at least in the context of HCV infection. Lower viral titres in culture fluids and increased ratios of intracellular to extracellular levels of infectious virus were observed in knockout versus wild-type Huh-7.5 cells, suggesting that HCV may induce programmed cell death in order to enhance virus release from infected cells. These results contribute to the understanding of HCV pathogenesis and add to the increasing volume of literature suggesting various programmed cell death pathways are not mutually exclusive.
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Affiliation(s)
- Hannah L. Wallace
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Lingyan Wang
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Cassandra L. Gardner
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Christopher P. Corkum
- Confocal Imaging/Flow Cytometry Unit, Medical Laboratories, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Michael D. Grant
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Kensuke Hirasawa
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
| | - Rodney S. Russell
- Immunology and Infectious Diseases, Division of Biomedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL, Canada
- *Correspondence: Rodney S. Russell,
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24
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Lee J, Ou JHJ. Hepatitis C virus and intracellular antiviral response. Curr Opin Virol 2022; 52:244-249. [PMID: 34973476 PMCID: PMC8844188 DOI: 10.1016/j.coviro.2021.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 02/03/2023]
Abstract
To establish successful infection in cells, it is essential for hepatitis C virus (HCV) to overcome intracellular antiviral responses. The host cell mechanism that fights against the virus culminates in the production of interferons (IFNs), IFN-stimulated genes (ISGs) and pro-inflammatory cytokines as well as the induction of autophagy and apoptosis. HCV has developed multiple means to disrupt the host signaling pathways that lead to these antiviral responses. HCV impedes signaling pathways initiated by pattern-recognition receptors (PRRs), usurps and uses the antiviral autophagic response to enhance its replication, alters mitochondrial dynamics and metabolism to prevent cell death and attenuate IFN response, and dysregulates inflammasomal response to cause IFN resistance and immune tolerance. These effects of HCV allow HCV to successful replicate and persist in its host cells.
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25
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Zhang BH, Liu H, Yuan Y, Weng XD, Du Y, Chen H, Chen ZY, Wang L, Liu XH. Knockdown of TRIM8 Protects HK-2 Cells Against Hypoxia/Reoxygenation-Induced Injury by Inhibiting Oxidative Stress-Mediated Apoptosis and Pyroptosis via PI3K/Akt Signal Pathway. Drug Des Devel Ther 2021; 15:4973-4983. [PMID: 34916780 PMCID: PMC8670861 DOI: 10.2147/dddt.s333372] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/30/2021] [Indexed: 11/23/2022] Open
Abstract
Background Acute kidney injury (AKI) emerges as an acute and critical disease. Tripartite motif 8 (TRIM8), one number of the TRIM protein family, is proved to participate in ischemia/reperfusion (I/R) injury. However, whether TRIM8 is involved in renal I/R injury and the associated mechanisms are currently unclear. Purpose This study aimed to investigate the precise role of TRIM8 and relevant mechanisms in renal I/R injury. Materials and Methods In this study, human renal proximal tubular epithelial cells (HK-2 cells) underwent 12 hours of hypoxia and 2 h, 3 h or 4 h of reoxygenation to establish an in vitro hypoxia/reoxygenation (H/R) model. The siRNAs specific to TRIM8 (si-TRIM8) were transfected into HK-2 cells to knockdown TRIM8. The cell H/R model included various groups including Control, H/R, H/R+DMSO, H/R+NAC, si-NC+H/R, si-TRIM8+H/R and si-TRIM8+LY294002+H/R. The cell viability and levels of reactive oxygen species (ROS), hydrogen peroxide (H2O2), mRNA, apoptotic proteins, pyroptosis-related proteins and PI3K/AKT pathway-associated proteins were assessed. Results In vitro, realtime-quantitative PCR and western-blot analysis showed that the mRNA and protein expression of TRIM8 were obviously upregulated after H/R treatment in HK-2 cells. Compared with the H/R model group, knockdown of TRIM8 significantly increased cell viability and reduced the levels of ROS, H2O2, apoptotic proteins (Cleaved caspasebase-3 and BAX) and pyroptosis-related proteins (NLRP3, ASC, Caspase-1, Caspase-11, IL-1β and GSDMD-N). Western-blot analysis also authenticated that PI3K/AKT pathway was activated after TRIM8 inhibition. The application of 5 mM N-acetyl-cysteine, one highly efficient ROS inhibitor, significantly suppressed the expression of apoptotic proteins and pyroptosis-related proteins. Moreover, the combined treatment of TRIM8 knockdown and LY294002 reversed the effects of inhibiting oxidative stress. Conclusion Knockdown of TRIM8 can alleviate H/R-induced oxidative stress by triggering the PI3K/AKT pathway, thus attenuating pyropyosis and apoptosis in vitro.
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Affiliation(s)
- Bang-Hua Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China.,Hubei Key Laboratory of Digestive System Disease, Wuhan, Hubei, People's Republic of China
| | - Hao Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China.,Hubei Key Laboratory of Digestive System Disease, Wuhan, Hubei, People's Republic of China
| | - Yan Yuan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China.,Hubei Key Laboratory of Digestive System Disease, Wuhan, Hubei, People's Republic of China
| | - Xiao-Dong Weng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Yang Du
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Hui Chen
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Zhi-Yuan Chen
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Lei Wang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Xiu-Heng Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
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26
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Jan MW, Su HL, Chang TH, Tsai KJ. Characterization of Pathogenesis and Inflammatory Responses to Experimental Parechovirus Encephalitis. Front Immunol 2021; 12:753683. [PMID: 34899705 PMCID: PMC8654935 DOI: 10.3389/fimmu.2021.753683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Human parechovirus type 3 (PeV-A3) infection has been recognized as an emerging etiologic factor causing severe nerve disease or sepsis in infants and young children. But the neuropathogenic mechanisms of PeV-A3 remain unknown. To understand the pathogenesis of PeV-A3 infection in the neuronal system, PeV-A3-mediated cytopathic effects were analyzed in human glioblastoma cells and neuroblastoma cells. PeV-A3 induced interferons and inflammatory cytokine expression in these neuronal cells. The pronounced cytopathic effects accompanied with activation of death signaling pathways of apoptosis, autophagy, and pyroptosis were detected. A new experimental disease model of parechovirus encephalitis was established. In the disease model, intracranial inoculation with PeV-A3 in C57BL/6 neonatal mice showed body weight loss, hindlimb paralysis, and approximately 20% mortality. PeV-A3 infection in the hippocampus and cortex regions of the neonatal mouse brain was revealed. Mechanistic assay supported the in vitro results, indicating detection of PeV-A3 replication, inflammatory cytokine expression, and death signaling transduction in mouse brain tissues. These in vitro and in vivo studies revealed that the activation of death signaling and inflammation responses is involved in PeV-A3-mediated neurological disorders. The present results might account for some of the PeV-A3-associated clinical manifestations.
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Affiliation(s)
- Ming-Wei Jan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Hong-Lin Su
- Department of Life Sciences, Agriculture Biotechnology Center, National Chung-Hsing University, Taichung, Taiwan
| | - Tsung-Hsien Chang
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Kuen-Jer Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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27
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NLRP3 Inflammasome Expression in Gingival Crevicular Fluid of Patients with Periodontitis and Chronic Hepatitis C. Mediators Inflamm 2021; 2021:6917919. [PMID: 34840527 PMCID: PMC8626199 DOI: 10.1155/2021/6917919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/01/2021] [Accepted: 11/10/2021] [Indexed: 12/13/2022] Open
Abstract
The study is aimed at assessing the impact that periodontal disease and chronic hepatitis C could have on gingival crevicular fluid levels of the NLRP3 inflammasome, caspase-1 (CASP-1), and interleukin-18 (IL-18) and at evaluating whether the increased local inflammatory reaction with clinical periodontal consequences is correlated to their upregulation. Patients were divided into four groups, according to their periodontal status and previously diagnosed hepatitis C, as follows: (i) CHC group, chronic hepatitis C patients; (ii) P group, periodontal disease patients, systemically healthy; (iii) CHC + P group, patients suffering from both conditions; and (iv) H group, systemically and periodontally healthy controls. Gingival crevicular samples were collected for quantitative analysis of the NLRP3 inflammasome, CASP-1, and IL-18. CHC + P patients expressed the worse periodontal status and the highest NLRP3, CASP-1, and IL-18 levels, the difference being statistically significant (p < 0.05). The P group patients also expressed significantly more elevated NLRP3, CASP-1, and IL-18 levels, as compared to nonperiodontal patients (CHC and H groups). Chronic hepatitis C and periodontal disease could have a significant influence on the upregulation of NLRP3 inflammasome and its components, possibly contributing to an increased local inflammatory reaction and clinical periodontal consequences.
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28
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Niu B, Yao L, Zhang Y, Xia X, Su H. LncRNA KCNQ1OT1 promoted hepatitis C virus-induced pyroptosis of β-cell through mediating the miR-223-3p/NLRP3 axis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1387. [PMID: 34733939 PMCID: PMC8506540 DOI: 10.21037/atm-21-3862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/12/2021] [Indexed: 01/10/2023]
Abstract
Background Type 2 diabetes is a well described extra-hepatic manifestation of hepatitis C virus (HCV) infection. This study aimed to explore the potential mechanism of KCNQ1 overlapping transcript 1 (KCNQ1OT1) in type 2 diabetes mellitus (T2DM) caused by HCV infection. Methods Min6 cells were infected with HCV to establish a vitro model, and the HCV copy number was detected by real-time quantitative PCR (RT-qPCR). The mRNA and protein expressions of IL-1β, IL-18, NLRP3, caspase-1, and GSDMD were analyzed by RT-qPCR and Western blot. Flow cytometry and TUNEL assay were used to evaluate the pyroptosis of cells and enzyme-linked immunosorbent assay (ELISA) detected the secretion of insulin. A dual luciferase reporter gene assay then verified the targeting relationship of KCNQ1OT1, miRNA-223-3p, and NLRP3. Results KCNQ1OT1 was highly expressed in HCV-infected T2DM patients and HCV-infected β-cells. Silencing KCNQ1OT1 inhibited β-cell pyroptosis by regulating miR-223-3p/NLRP3, and inhibition of miR-223-3p or overexpression of NLRP3 reversed the pyroptosis by silencing KCNQ1OT1. Conclusions Our findings indicate KCNQ1OT1 promotes HCV-infected β-cell pyroptosis through the miRNA-223-3p/NLRP3 axis, effecting the production of insulin and accelerating the occurrence and development of T2DM.Regulating KCNQ1OT1 and its target genes will help to better understand the pathogenesis of T2DM induced by HCV infection and provide new theoretical foundations and therapeutic targets.
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Affiliation(s)
- Ben Niu
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Lixuan Yao
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yating Zhang
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Xueshan Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Heng Su
- Department of Endocrinology and Metabolism, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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29
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Eisfeld HS, Simonis A, Winter S, Chhen J, Ströh LJ, Krey T, Koch M, Theobald SJ, Rybniker J. Viral Glycoproteins Induce NLRP3 Inflammasome Activation and Pyroptosis in Macrophages. Viruses 2021; 13:v13102076. [PMID: 34696506 PMCID: PMC8538122 DOI: 10.3390/v13102076] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/10/2021] [Accepted: 10/11/2021] [Indexed: 01/03/2023] Open
Abstract
Infections with viral pathogens are widespread and can cause a variety of different diseases. In-depth knowledge about viral triggers initiating an immune response is necessary to decipher viral pathogenesis. Inflammasomes, as part of the innate immune system, can be activated by viral pathogens. However, viral structural components responsible for inflammasome activation remain largely unknown. Here we analyzed glycoproteins derived from SARS-CoV-1/2, HCMV and HCV, required for viral entry and fusion, as potential triggers of NLRP3 inflammasome activation and pyroptosis in THP-1 macrophages. All tested glycoproteins were able to potently induce NLRP3 inflammasome activation, indicated by ASC-SPECK formation and secretion of cleaved IL-1β. Lytic cell death via gasdermin D (GSDMD), pore formation, and pyroptosis are required for IL-1β release. As a hallmark of pyroptosis, we were able to detect cleavage of GSDMD and, correspondingly, cell death in THP-1 macrophages. CRISPR-Cas9 knockout of NLRP3 and GSDMD in THP-1 macrophages confirmed and strongly support the evidence that viral glycoproteins can act as innate immunity triggers. With our study, we decipher key mechanisms of viral pathogenesis by showing that viral glycoproteins potently induce innate immune responses. These insights could be beneficial in vaccine development and provide new impulses for the investigation of vaccine-induced innate immunity.
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Affiliation(s)
- Hannah S. Eisfeld
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
| | - Alexander Simonis
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
| | - Sandra Winter
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
| | - Jason Chhen
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
| | - Luisa J. Ströh
- Institute of Virology, Hannover Medical School, 30625 Hannover, Germany; (L.J.S.); (T.K.)
| | - Thomas Krey
- Institute of Virology, Hannover Medical School, 30625 Hannover, Germany; (L.J.S.); (T.K.)
- Center of Structural and Cell Biology in Medicine, Institute of Biochemistry, University of Luebeck, 23562 Luebeck, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, 22607 Hamburg, Germany
- Excellence Cluster 2155 RESIST, Hannover Medical School, 30625 Hannover, Germany
- Centre for Structural Systems Biology (CSSB), 22607 Hamburg, Germany
| | - Manuel Koch
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
- Institute for Dental Research and Oral Musculoskeletal Biology and Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Joseph-Stelzmann-Strasse 52, 50931 Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
| | - Sebastian J. Theobald
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
- Correspondence: (S.J.T.); (J.R.)
| | - Jan Rybniker
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (H.S.E.); (A.S.); (S.W.); (J.C.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Robert-Koch-Strasse 21, 50931 Cologne, Germany;
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
- Correspondence: (S.J.T.); (J.R.)
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30
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From pyroptosis, apoptosis and necroptosis to PANoptosis: A mechanistic compendium of programmed cell death pathways. Comput Struct Biotechnol J 2021; 19:4641-4657. [PMID: 34504660 PMCID: PMC8405902 DOI: 10.1016/j.csbj.2021.07.038] [Citation(s) in RCA: 193] [Impact Index Per Article: 64.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 02/07/2023] Open
Abstract
Pyroptosis, apoptosis and necroptosis are the most genetically well-defined programmed cell death (PCD) pathways, and they are intricately involved in both homeostasis and disease. Although the identification of key initiators, effectors and executioners in each of these three PCD pathways has historically delineated them as distinct, growing evidence has highlighted extensive crosstalk among them. These observations have led to the establishment of the concept of PANoptosis, defined as an inflammatory PCD pathway regulated by the PANoptosome complex with key features of pyroptosis, apoptosis and/or necroptosis that cannot be accounted for by any of these PCD pathways alone. In this review, we provide a brief overview of the research history of pyroptosis, apoptosis and necroptosis. We then examine the intricate crosstalk among these PCD pathways to discuss the current evidence for PANoptosis. We also detail the molecular evidence for the assembly of the PANoptosome complex, a molecular scaffold for contemporaneous engagement of key molecules from pyroptosis, apoptosis, and/or necroptosis. PANoptosis is now known to be critically involved in many diseases, including infection, sterile inflammation and cancer, and future discovery of novel PANoptotic components will continue to broaden our understanding of the fundamental processes of cell death and inform the development of new therapeutics.
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31
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Li L, Jiang M, Qi L, Wu Y, Song D, Gan J, Li Y, Bai Y. Pyroptosis, a new bridge to tumor immunity. Cancer Sci 2021; 112:3979-3994. [PMID: 34252266 PMCID: PMC8486185 DOI: 10.1111/cas.15059] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/01/2021] [Accepted: 07/04/2021] [Indexed: 12/24/2022] Open
Abstract
Pyroptosis refers to the process of gasdermin (GSDM)‐mediated programmed cell death (PCD). Our understanding of pyroptosis has expanded beyond cells and is known to involve extracellular responses. Recently, there has been an increasing interest in pyroptosis due to its emerging role in activating the immune system. In the meantime, pyroptosis‐mediated therapies, which use the immune response to kill cancer cells, have also achieved notable success in a clinical setting. In this review, we discuss that the immune response induced by pyroptosis activation is a double‐edged sword that affects all stages of tumorigenesis. On the one hand, the activation of inflammasome‐mediated pyroptosis and the release of pyroptosis‐produced cytokines alter the immune microenvironment and promote the development of tumors by evading immune surveillance. On the other hand, pyroptosis‐produced cytokines can also collect immune cells and ignite the immune system to improve the efficiency of tumor immunotherapies. Pyroptosis is also related to some immune checkpoints, especially programmed death‐1 (PD‐1) or programmed death‐ ligand 1 (PD‐L1). In this review, we mainly focus on our current understanding of the interplay between the immune system and tumors that process through pyroptosis, and debate their use as potential therapeutic targets.
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Affiliation(s)
- Lisha Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Mingxia Jiang
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Ling Qi
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yiming Wu
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Dongfeng Song
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Junqing Gan
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yanjing Li
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yuxian Bai
- Department of Gastrointestinal Oncology, Harbin Medical University Cancer Hospital, Harbin, China
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Cell Death in Coronavirus Infections: Uncovering Its Role during COVID-19. Cells 2021; 10:cells10071585. [PMID: 34201847 PMCID: PMC8306954 DOI: 10.3390/cells10071585] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 02/07/2023] Open
Abstract
Cell death mechanisms are crucial to maintain an appropriate environment for the functionality of healthy cells. However, during viral infections, dysregulation of these processes can be present and can participate in the pathogenetic mechanisms of the disease. In this review, we describe some features of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and some immunopathogenic mechanisms characterizing the present coronavirus disease (COVID-19). Lymphopenia and monocytopenia are important contributors to COVID-19 immunopathogenesis. The fine mechanisms underlying these phenomena are still unknown, and several hypotheses have been raised, some of which assign a role to cell death as far as the reduction of specific types of immune cells is concerned. Thus, we discuss three major pathways such as apoptosis, necroptosis, and pyroptosis, and suggest that all of them likely occur simultaneously in COVID-19 patients. We describe that SARS-CoV-2 can have both a direct and an indirect role in inducing cell death. Indeed, on the one hand, cell death can be caused by the virus entry into cells, on the other, the excessive concentration of cytokines and chemokines, a process that is known as a COVID-19-related cytokine storm, exerts deleterious effects on circulating immune cells. However, the overall knowledge of these mechanisms is still scarce and further studies are needed to delineate new therapeutic strategies.
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Yang Y, Bai L, Liao W, Feng M, Zhang M, Wu Q, Zhou K, Wen F, Lei W, Zhang N, Huang J, Li Q. The role of non-apoptotic cell death in the treatment and drug-resistance of digestive tumors. Exp Cell Res 2021; 405:112678. [PMID: 34171351 DOI: 10.1016/j.yexcr.2021.112678] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 02/05/2023]
Abstract
Tumor cell apoptosis evasion is one of the main reasons for easy metastasis occurrence, chemotherapy resistance, and the low five-year survival rate of digestive system tumors. Current research has shown that non-apoptotic cell death plays an important role in tumors of the digestive system. Therefore, increasing the proportion of non-apoptotic tumor cells is one of the effective methods of improving therapeutic efficacies for digestive system tumors. Non-apoptotic cell death modes mainly include autophagic cell death, pyroptosis, ferroptosis, in addition to other cell death modes. This review covers a systematic review relating to the research progress made into autophagic cell death, pyroptosis, ferroptosis, and other cell death modes in the treatment of digestive system tumors. It also highlights how treatment is a reasonable prospect based on clinical experience and provides reliable guidance for the further development of digestive system tumor treatments.
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Affiliation(s)
- Yang Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - LiangLiang Bai
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Weiting Liao
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Mingyang Feng
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Mengxi Zhang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Qiuji Wu
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Kexun Zhou
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Feng Wen
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Wanting Lei
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Nan Zhang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Jiaxing Huang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China
| | - Qiu Li
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China; West China Biomedical Big Data Center, Sichuan University, No. 37, GuoXue Xiang Chengdu, Sichuan, China.
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Wei G, Luo S, Wu W, Hu J, Zhou R. Activation of Interleukin-1 β Release and Pyroptosis by Transmissible Gastroenteritis Virus Is Dependent on the NOD-Like Receptor Protein 3 Inflammasome in Porcine Intestinal Epithelial Cell Line. Viral Immunol 2021; 34:401-409. [PMID: 33973805 DOI: 10.1089/vim.2020.0227] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Transmissible gastroenteritis virus (TGEV) is a coronavirus, which causes fatal severe diarrhea and leads to high mortality in newborn piglets. Inflammasomes are hub molecules that induce proinflammatory cytokine production and maturation to initiate innate immune defenses upon cellular infection. To date, the potential role of inflammasome in TGEV infection in porcine intestinal epithelial cells has not been elucidated. The present study aims to investigate the function of the inflammasome in response to TGEV infection in porcine intestinal epithelial cells. Our results revealed that TGEV infection induced the production of pro-interleukin-1β (pro-IL-1β) and enhanced its processing and maturation in porcine intestinal epithelial cells through caspase-1 activation. In addition, TGEV infection in porcine intestinal epithelial cells induced pyroptosis, indicated by cell death and the production and cleavage of gasdermin D (GSDMD). Meanwhile, TGEV infection sufficiently activated the expression and assembly of the NOD-like receptor protein 3 (NLRP3) inflammasome in porcine intestinal epithelial cells, and inhibition of NLRP3 blocked TGEV-induced IL-1β release. We also found that inhibition of NLRP3 enhanced the replication of TGEV without inducing cell death. In conclusion, these data demonstrated that activation of IL-1β release and pyroptosis is dependent on NLRP3 inflammasome, thus NLRP3 inflammasome may play a central role in the innate immune response to TGEV infection.
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Affiliation(s)
- Guanghe Wei
- College of Veterinary Medicine, Southwest University, Chongqing, P.R. China
| | - Shijin Luo
- College of Veterinary Medicine, Southwest University, Chongqing, P.R. China
| | - Wanyan Wu
- College of Veterinary Medicine, Southwest University, Chongqing, P.R. China
| | - Junye Hu
- College of Veterinary Medicine, Southwest University, Chongqing, P.R. China
| | - Rongqiong Zhou
- College of Veterinary Medicine, Southwest University, Chongqing, P.R. China
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Annual Meeting of the Canadian Association for the Study of the Liver (CASL), the Canadian Network on Hepatitis C (CANHEPC) and the Canadian Association of Hepatology Nurses (CAHN) 2021 Abstracts. CANADIAN LIVER JOURNAL 2021; 4:113-248. [PMID: 35991765 PMCID: PMC9204943 DOI: 10.3138/canlivj.4.2.abst] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 11/06/2023]
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Li J, Casey JL, Greenwald ZR, Yasseen III AS, Dickie M, Feld JJ, Cooper CL, Crawley AM. The 9th Canadian Symposium on Hepatitis C Virus: Advances in HCV research and treatment towards elimination. CANADIAN LIVER JOURNAL 2021; 4:59-71. [DOI: 10.3138/canlivj-2020-0026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 12/13/2022]
Abstract
Hepatitis C virus (HCV) elimination has evolved into a coordinated global effort. Canada, with more than 250,000 chronically infected individuals, is among the countries leading this effort. The 9th Canadian Symposium on HCV, held in February 2020, thus established and addressed its theme, ‘advances in HCV research and treatment towards elimination’, by gathering together basic scientists, clinicians, epidemiologists, social scientists, and community members interested in HCV research in Canada. Plenary sessions showcased topical research from prominent international and national researchers, complemented by select abstract presentations. This event was hosted by the Canadian Network on Hepatitis C (CanHepC), with support from the Public Health Agency of Canada and the Canadian Institutes of Health Research and in partnership with the Canadian Liver Meeting. CanHepC has an established record in HCV research by its members and in its advocacy activities to address the care, treatment, diagnosis, and immediate and long-term needs of those affected by HCV infection. Many challenges remain in tackling chronic HCV infection, such as the need for a vaccine; difficult-to-treat populations and unknown aspects of patient subgroups, including pregnant women and children; vulnerable people; and issues distinct to Indigenous peoples. There is also increasing concern about long-term clinical outcomes after successful treatment, with the rise in comorbidities such as diabetes, cardiovascular disease, and fatty liver disease and the remaining risk for hepatocellular carcinoma in cirrhotic individuals. The symposium addressed these topics in highlighting research advances that will collectively play an important role in eliminating HCV and minimizing subsequent health challenges.
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Affiliation(s)
- Jiafeng Li
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Centre for Infection, Immunity and Inflammation, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Julia L Casey
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Zoë R Greenwald
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Abdool S Yasseen III
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Melisa Dickie
- Knowledge Exchange Division, Community AIDS Treatment Information Exchange, Toronto, Ontario, Canada
| | - Jordan J Feld
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
- Toronto Centre for Liver Disease, Toronto General Hospital, Toronto, Ontario, Canada
| | - Curtis L Cooper
- Centre for Infection, Immunity and Inflammation, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Division of Infectious Diseases, The Ottawa Hospital, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Angela M Crawley
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Centre for Infection, Immunity and Inflammation, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
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The Inflammasome Components NLRP3 and ASC Act in Concert with IRGM To Rearrange the Golgi Apparatus during Hepatitis C Virus Infection. J Virol 2021; 95:JVI.00826-20. [PMID: 33208442 PMCID: PMC7925091 DOI: 10.1128/jvi.00826-20] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/30/2020] [Indexed: 12/18/2022] Open
Abstract
Numerous pathogens can affect cellular homeostasis and organelle dynamics. Hepatitis C virus (HCV) triggers Golgi fragmentation through the immunity-related GTPase M (IRGM), a resident Golgi protein, to enhance its lipid supply for replication. Hepatitis C virus (HCV) infection triggers Golgi fragmentation through the Golgi-resident protein immunity-related GTPase M (IRGM). Here, we report the roles of NLRP3 (NOD-, LRR- and pyrin domain-containing protein 3) and ASC (apoptosis-associated speck-like protein containing a caspase activation and recruitment domain [CARD]), two inflammasome components, in the initial events leading to this fragmentation. We show that ASC resides at the Golgi with IRGM at homeostasis. Upon infection, ASC dissociates from both IRGM and the Golgi and associates with HCV-induced NLRP3. NLRP3 silencing inhibits Golgi fragmentation. ASC silencing disrupts the Golgi structure in both control and infected cells and reduces the localization of IRGM at the Golgi. IRGM depletion in the ASC-silenced cells cannot totally restore the Golgi structure. These data highlight a role for ASC, upstream of the formation of the inflammasome, in regulating IRGM through its control on the Golgi. A similar mechanism occurs in response to nigericin treatment, but not in cells infected with another member of the Flaviviridae family, Zika virus (ZIKV). We propose a model for a newly ascribed function of the inflammasome components in Golgi structural remodeling during certain stimuli. IMPORTANCE Numerous pathogens can affect cellular homeostasis and organelle dynamics. Hepatitis C virus (HCV) triggers Golgi fragmentation through the immunity-related GTPase M (IRGM), a resident Golgi protein, to enhance its lipid supply for replication. Here, we reveal the role of the inflammasome components NLRP3 and ASC in this process, thus uncovering a new interplay between effectors of inflammation and viral infection or stress. We show that the inflammasome component ASC resides at the Golgi under homeostasis and associates with IRGM. Upon HCV infection, ASC is recruited to NLRP3 and dissociates from IRGM, causing Golgi fragmentation. Our results uncover that aside from their known function in the inflammation response, these host defense regulators also ensure the maintenance of intact intracellular structure in homeostasis, while their activation relieves factors leading to Golgi remodeling.
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Wang Y, Chen Q, Jiao F, Shi C, Pei M, Wang L, Gong Z. Histone deacetylase 2 regulates ULK1 mediated pyroptosis during acute liver failure by the K68 acetylation site. Cell Death Dis 2021; 12:55. [PMID: 33431796 PMCID: PMC7801742 DOI: 10.1038/s41419-020-03317-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/29/2020] [Accepted: 12/03/2020] [Indexed: 02/07/2023]
Abstract
Pyroptosis is a new necrosis pattern of hepatocyte during liver inflammation in acute liver failure (ALF). Histone deacetylase 2 (HDAC2) is associated with several pathological conditions in the liver system. The aim of this study is to investigate whether knockdown or pharmacological inhibition of HDAC2 could reduce the level of pyroptosis in ALF through ULK1-NLRP3-pyroptosis pathway. The role of HDAC2 on ULK1-NLRP3-pyroptosis pathway during ALF was detected in clinical samples. The mechanism was investigated in transfected cells or in ALF mouse model. The RNA-sequencing results revealed that ULK1 was a negative target regulatory molecule by HDAC2. During the process of pyroptosis, the HDAC2 exerted the antagonistic effect with ULK1 by the K68 acetylation site in L02 cells. Then the role of HDAC2 on ULK1-NLRP3-pyroptosis pathway in ALF mouse model was also detected. Moreover, the related molecules to ULK1-NLRP3-pyroptosis pathway were verified different expression in normal health donors and clinical ALF patients. HDAC2 in hepatocytes plays a pivotal role in an ULK1-NLRP3 pathway driven auto-amplification of pyroptosis in ALF. One of the important mechanisms is that inhibition HDAC2 to reduce pyroptosis may be by modulating the K68 lysine site of ULK1.
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Affiliation(s)
- Yao Wang
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Qian Chen
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Fangzhou Jiao
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Chunxia Shi
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Maohua Pei
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Luwen Wang
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
| | - Zuojiong Gong
- grid.412632.00000 0004 1758 2270Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan, 430060 P.R. China
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Inhibition of Enterovirus A71 by a Novel 2-Phenyl-Benzimidazole Derivative. Viruses 2021; 13:v13010058. [PMID: 33406781 PMCID: PMC7823780 DOI: 10.3390/v13010058] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023] Open
Abstract
Enterovirus A71 (EV-A71) infection has emerged as a significant public health concern at the global level. Epidemic events of EV-A71 have been reported worldwide, and this succession of outbreaks has heightened concern that EV-A71 may become a public health threat. In recent years, widespread A71 enterovirus also occurred in European countries. EV-A71 infection causes hand-foot-mouth disease (HFMD), herpangina, and fever. However, it can sometimes induce a variety of neurological complications, including encephalitis, aseptic meningitis, pulmonary edema, and acute flaccid paralysis. We identified new benzimidazole derivatives and described theirin vitrocytotoxicity and broad-spectrum anti-enterovirus activity. Among them, derivative 2b resulted in interesting activity against EV-A71, and therefore it was selected for further investigations. Compound 2b proved to be able to protect cell monolayers from EV-A71-induced cytopathogenicity, with an EC50 of 3 µM. Moreover, Vero-76 cells resulted in being significantly protected from necrosis and apoptosis when treated with 2b at 20 and 80 µM. Compound 2b reduced viral adsorption to Vero-76 cells, and when evaluated in a time-of-addition assay, the derivative had the highest effect when added during the infection period. Moreover, derivative 2b reduced viral penetration into host cells. Besides, 2b did not affect intestinal monolayers permeability, showing no toxic effects. A detailed insight into the efficacy of compound 2b against EV-A71 showed a dose-dependent reduction in the viral titer, also at low concentrations. Mechanism of action investigations suggested that our derivative can inhibit viral endocytosis by reducing viral attachment to and penetration into host cells. Pharmacokinetic and toxicity predictions validated compound 2b as a good candidate for furtherin vivoassays.
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Li J, Chen L, Zhou C, Bai Y, Zhao R, Zhang J, Xu X, Ge X, Qiu Y. Insight to Pyroptosis in Viral Infectious Diseases. Health (London) 2021. [DOI: 10.4236/health.2021.135043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Shojaie L, Iorga A, Dara L. Cell Death in Liver Diseases: A Review. Int J Mol Sci 2020; 21:ijms21249682. [PMID: 33353156 PMCID: PMC7766597 DOI: 10.3390/ijms21249682] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
Regulated cell death (RCD) is pivotal in directing the severity and outcome of liver injury. Hepatocyte cell death is a critical event in the progression of liver disease due to resultant inflammation leading to fibrosis. Apoptosis, necrosis, necroptosis, autophagy, and recently, pyroptosis and ferroptosis, have all been investigated in the pathogenesis of various liver diseases. These cell death subroutines display distinct features, while sharing many similar characteristics with considerable overlap and crosstalk. Multiple types of cell death modes can likely coexist, and the death of different liver cell populations may contribute to liver injury in each type of disease. This review addresses the known signaling cascades in each cell death pathway and its implications in liver disease. In this review, we describe the common findings in each disease model, as well as the controversies and the limitations of current data with a particular focus on cell death-related research in humans and in rodent models of alcoholic liver disease, non-alcoholic fatty liver disease and steatohepatitis (NASH/NAFLD), acetaminophen (APAP)-induced hepatotoxicity, autoimmune hepatitis, cholestatic liver disease, and viral hepatitis.
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Affiliation(s)
- Layla Shojaie
- Division of Gastrointestinal & Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; (L.S.); (A.I.)
- Research Center for Liver Disease, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Andrea Iorga
- Division of Gastrointestinal & Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; (L.S.); (A.I.)
- Research Center for Liver Disease, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Lily Dara
- Division of Gastrointestinal & Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; (L.S.); (A.I.)
- Research Center for Liver Disease, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
- Correspondence:
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Imre G. Cell death signalling in virus infection. Cell Signal 2020; 76:109772. [PMID: 32931899 PMCID: PMC7486881 DOI: 10.1016/j.cellsig.2020.109772] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
Apoptosis, necroptosis and pyroptosis represent three major regulated cell death modalities. Apoptosis features cell shrinkage, nuclear fragmentation and cytoplasm-blebbing. Necroptosis and pyroptosis exhibit osmotic imbalances in the cell accompanied by early membrane ruptures, which morphologically resembles necrosis. Importantly, these two lytic cell death forms facilitate the release of damage associated molecular patterns into the extracellular space leading to inflammatory response. Whereas, during apoptosis, the membrane integrity is preserved and the apoptotic cell is removed by neighbouring cells ensuring the avoidance of immune-stimulation. Viruses comprise a versatile group of intracellular pathogens, which elicit various strategies to infect and to propagate. Viruses are recognized by a myriad of pathogen recognition receptors in the human cells, which consequently lead to activation of the immune system and in certain circumstances cell-autonomous cell death. Importantly, the long-standing view that a cell death inducing capacity of a virus is equal to its pathogenic potential seems to be only partially valid. The altruistic cell death of an infected cell may serve the whole organism by ultimately curbing the way of virus manufacturing. In fact, several viruses express "anti-cell death" proteins to avoid this viral-defence mechanism. Conversely, some viruses hijack cell death pathways to selectively destroy cell populations in order to compromise the immune system of the host. This review discusses the pros and cons of virus induced cell death from the perspective of the host cells and attempts to provide a comprehensive overview of the complex network of cell death signalling in virus infection.
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Affiliation(s)
- Gergely Imre
- Institute of General Pharmacology and Toxicology, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main 60590, Germany.
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43
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Zhang L, Zeyu W, Liu B, Jang S, Zhang Z, Jiang Y. Pyroptosis in liver disease. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2020; 113:280-285. [PMID: 33233902 DOI: 10.17235/reed.2020.7034/2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Pyroptosis is an inflammatory cell death process that is dependent on caspase. Pyroptosis is a specific form of programmed cell death with the morphological characteristics of formation of pores on the cell membrane, cell swelling, and rupture of the plasma membrane. Recent studies have demonstrated that pyroptosis plays an important role in the occurrence and development of liver diseases. Here, we focus on the mechanisms of pyroptosis, as well as on the relationship between pyroptosis and liver diseases.
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Affiliation(s)
- Lijuan Zhang
- Gastroenterology, Wuxi Number Nine People's Hospital Affiliated to Soochow University
| | - Wang Zeyu
- Liver Cancer Center, Key Laboratory of Cancer Prevention and Therapy. Tianjin Medical University Cancer Institute and Hos
| | - Binghua Liu
- Gastroenterology, The Second Hospital of Tianjin Medical University
| | | | - Zhiguang Zhang
- Gastroenterology, The Second Hospital of Tianjin Medical University
| | - Yong Jiang
- Gastroenterology, The Second Hospital of Tianjin Medical University, CHINA
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Cheng QC, Fan J, Deng XW, Liu HC, Ding HR, Fang X, Wang JW, Chen CH, Zhang WG. Dihydromyricetin ameliorates chronic liver injury by reducing pyroptosis. World J Gastroenterol 2020; 26:6346-6360. [PMID: 33244197 PMCID: PMC7656208 DOI: 10.3748/wjg.v26.i41.6346] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/30/2020] [Accepted: 08/29/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chronic liver injury (CLI) is now a worldwide disease. However, there is no effective treatment. Pyroptosis plays an essential role in CLI. Dihydromyricetin (DHM) resists oxidation and protects the liver. We hypothesize that the beneficial effect of DHM on CLI is related to its effect on the expression of pyroptosis-related molecules. Therefore, we studied the influence of DHM on CLI and pyroptosis.
AIM To study the role of pyroptosis in the pathogenesis of CLI and the therapeutic mechanism of DHM.
METHODS Thirty-two mice were randomly divided into four groups: The control group was injected with olive oil, the carbon tetrachloride (CCl4) group was injected with CCl4, the vehicle group was injected with hydroxypropyl-β-cyclodextrin while injecting CCl4 and the DHM group was injected with DHM while injecting CCl4. After four weeks of treatment, liver tissues from the mice were stained with hematoxylin and eosin, and oil red O. Blood was collected from the angular vein for serological analysis. The severity of CLI was estimated. Some liver tissue was sampled for immunohistochemistry, Western blotting and quantitative reverse transcription PCR to observe the changes in pyroptosis-related molecules.
RESULTS Serum total cholesterol, low density lipoprotein, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in the CCl4 group were higher than those in the control group, and serum total cholesterol, low density lipoprotein, AST and ALT in the DHM group were lower than those in the vehicle group. Hematoxylin and eosin and oil red O staining showed that there were more lipid droplets in the CCl4 group than in the control group, and there were fewer lipid droplets in the DHM group than in the vehicle group. Western blotting showed that the expression of the pyroptosis-related molecules caspase-1, NOD-, LRR- and pyrin domain-containing 3 (NLRP3) and gasdermin D (GSDMD)-N in the CCl4 group was higher than that in the control group, while expression of these proteins in the DHM group was lower than that in the vehicle group. Quantitative reverse transcription PCR results showed that the expression of the pyroptosis-related genes caspase-1, NLRP3, GSDMD and interleukin-1β (IL-1β) in the CCl4 group was higher than that in the control group, while there was no significant change in NLRP3 and caspase-1 expression in the DHM group compared with that in the vehicle group, and the expression of GSDMD and IL-1β was decreased.
CONCLUSION DHM improves CCl4-induced CLI and regulates the pyroptosis pathway in hepatocytes. DHM may be a potential therapeutic agent for CLI.
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Affiliation(s)
- Quan-Cheng Cheng
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Jing Fan
- Xin Hua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 202155, China
| | - Xin-Wei Deng
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Huai-Cun Liu
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Hui-Ru Ding
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Xuan Fang
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Jian-Wei Wang
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Chun-Hua Chen
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Wei-Guang Zhang
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
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45
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Aizawa S, Brar G, Tsukamoto H. Cell Death and Liver Disease. Gut Liver 2020; 14:20-29. [PMID: 30917630 PMCID: PMC6974333 DOI: 10.5009/gnl18486] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/14/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022] Open
Abstract
Cell death is now reclassified into several types based on the mechanisms and morphologic phenotype. Understanding of such classifications offers insights into the pathogenesis of liver disease, as well as diagnostic or therapeutic implications. Apoptosis is recognized relatively easily due to its unique morphology, but lytic cell death may occur in the form of accidental necrosis, mitochondria permeability transition-driven necrosis, necroptosis, pyroptosis, ferroptosis, and parthanatos. The cell may be engulfed by neighboring cells due to a loss of integrin signaling or cancer cell competition by entosis, a type of cell death. The classification also includes mechanistically termed cell death such as autophagy-dependent cell death and lysosome-dependent cell death. These different types of cell death may occur uniquely in certain liver diseases but may coexist in the evolution of the disease. They occur in parenchymal and non-parenchymal liver cells, as well as inflammatory cells, causing distinct pathologic consequences. This review briefly covers the recently revised classifications of cell death and discusses their relevance to liver diseases of different etiologies.
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Affiliation(s)
- Satoka Aizawa
- Southern California Research Center for ALPD and Cirrhosis and Department of Pathology, Keck School of Medicine, University of Southern California, USA
| | - Gurmehr Brar
- Southern California Research Center for ALPD and Cirrhosis and Department of Pathology, Keck School of Medicine, University of Southern California, USA
| | - Hidekazu Tsukamoto
- Southern California Research Center for ALPD and Cirrhosis and Department of Pathology, Keck School of Medicine, University of Southern California, USA.,Department of Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA
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Wei Z, Nie G, Yang F, Pi S, Wang C, Cao H, Guo X, Liu P, Li G, Hu G, Zhang C. Inhibition of ROS/NLRP3/Caspase-1 mediated pyroptosis attenuates cadmium-induced apoptosis in duck renal tubular epithelial cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 273:115919. [PMID: 33497945 DOI: 10.1016/j.envpol.2020.115919] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/17/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) is an occupational and environmental pollutant, which mainly causes nephrotoxicity by damaging renal proximal tubular cells. To evaluate the effects of Cd on pyroptosis and the relationship between pyroptosis and apoptosis in duck renal tubular epithelial cells, the cells were cultured with 3CdSO4·8H2O (0, 2.5, 5.0, or 10.0 μM Cd), N-acetyl-L-cysteine (NAC) (100.0 μM), Z-YVAD-FMK (10.0 μM) or the combination of Cd and NAC or Z-YVAD-FMK for 12 h, and then cytotoxicity was assessed. The results evidenced that Cd significantly increased the releases of interleukin-18 (IL-18) and interleukin-1β (IL-1β), lactate dehydrogenase (LDH) and nitric oxide (NO), relative conductivity and cellular reactive oxygen species (ROS) level. Simultaneously, Cd also markedly upregulated NLRP3, Caspase-1, ASC, NEK7, IL-1β and IL-18 mRNA levels and NLRP3, Caspase-1 p20, GSDMD and ASC protein levels. Additionally, NAC notably improved the changes of above indicators induced by Cd. Combined treatment with Cd and Z-YVAD-FMK remarkably elevated Bcl-2 mRNA and protein levels, inhibited p53, Bax, Bak-1, Cyt C, Caspase-9 and Caspase-3 mRNA levels and p53, Bax, Bak-1, Caspase-9/cleaved Caspase-9 and Caspase-3/cleaved Caspase-3 protein levels, increased mitochondrial membrane potential (MMP), decreased apoptosis ratio and cell damage compared to treatment with Cd alone. Taken together, Cd exposure induces duck renal tubular epithelial cell pyroptosis through ROS/NLRP3/Caspase-1 signaling pathway, and inhibiting Caspase-1 dependent pyroptosis attenuates Cd-induced apoptosis.
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Affiliation(s)
- Zejing Wei
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Gaohui Nie
- School of Information Technology, Jiangxi University of Finance and Economics, No. 665 Yuping West Street, Economic and Technological Development District, Nanchang, 330032, Jiangxi, PR China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Shaoxing Pi
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Chang Wang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Huabin Cao
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Xiaoquan Guo
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Ping Liu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Guyue Li
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China
| | - Caiying Zhang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang, 330045, Jiangxi, PR China.
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Metabolic reprogramming by Zika virus provokes inflammation in human placenta. Nat Commun 2020; 11:2967. [PMID: 32528049 PMCID: PMC7290035 DOI: 10.1038/s41467-020-16754-z] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
The recent outbreak of Zika virus (ZIKV) was associated with birth defects and pregnancy loss when maternal infection occurs in early pregnancy, but specific mechanisms driving placental insufficiency and subsequent ZIKV-mediated pathogenesis remain unclear. Here we show, using large scale metabolomics, that ZIKV infection reprograms placental lipidome by impairing the lipogenesis pathways. ZIKV-induced metabolic alterations provide building blocks for lipid droplet biogenesis and intracellular membrane rearrangements to support viral replication. Furthermore, lipidome reprogramming by ZIKV is paralleled by the mitochondrial dysfunction and inflammatory immune imbalance, which contribute to placental damage. In addition, we demonstrate the efficacy of a commercially available inhibitor in limiting ZIKV infection, provides a proof-of-concept for blocking congenital infection by targeting metabolic pathways. Collectively, our study provides mechanistic insights on how ZIKV targets essential hubs of the lipid metabolism that may lead to placental dysfunction and loss of barrier function. Zika virus (ZIKV) infection of pregnant women is associated with pregnancy loss and birth defects, but molecular insights for the aetiology are scarce. Here the authors show that ZIKV reprograms the host lipidome to facilitate viral replication, induce mitochondria dysfunction, and cause immune imbalance, thereby identifying a potential target for ZIKV therapy.
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48
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Li J, Kong L, Huang H, Luan S, Jin R, Wu F. ASIC1a inhibits cell pyroptosis induced by acid-induced activation of rat hepatic stellate cells. FEBS Open Bio 2020; 10:1044-1055. [PMID: 32237041 PMCID: PMC7262943 DOI: 10.1002/2211-5463.12850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/11/2020] [Accepted: 03/25/2020] [Indexed: 12/19/2022] Open
Abstract
The activation of hepatic stellate cells (HSCs) is associated with liver fibrosis, the pathological feature of most forms of chronic hepatic damage, and is accompanied by abnormal deposition of the extracellular matrix (ECM). During the pathological process, acid‐sensing ion channel 1a (ASIC1a), which is responsible for Ca2+ transportation, is involved in the activation of HSCs. It has previously been identified that ASIC1a is related to pyroptosis in articular chondrocytes. However, it remains unclear whether ASIC1a restrains pyroptosis during liver fibrosis. Here, we determined that the levels of pyroptosis‐associated speck‐like protein, gasdermin D, caspase‐1, nucleotide‐binding oligomerization domain (NOD)‐like receptor 3, and apoptosis‐associated speck‐like protein (ASC) decreased, while the level of α‐smooth muscle actin and collagen‐I increased upon introduction of ASIC1a into an acid‐induced model. Inhibition or silencing of ASIC1a and the use of Ca2+‐free medium were able to promote the pyroptosis of activated HSCs, which reduced their deposition. In summary, our study indicates that ASIC1a inhibits pyroptosis of HSCs and that inhibition of ASIC1a may be able to promote pyroptosis to relieve liver fibrosis.
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Affiliation(s)
- Jun Li
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Lingjin Kong
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Huiping Huang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Shaohua Luan
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Rui Jin
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Fanrong Wu
- School of Pharmacy, Anhui Medical University, Hefei, China
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49
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Dash S, Aydin Y, Widmer KE, Nayak L. Hepatocellular Carcinoma Mechanisms Associated with Chronic HCV Infection and the Impact of Direct-Acting Antiviral Treatment. J Hepatocell Carcinoma 2020; 7:45-76. [PMID: 32346535 PMCID: PMC7167284 DOI: 10.2147/jhc.s221187] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/06/2020] [Indexed: 12/12/2022] Open
Abstract
Hepatitis C virus (HCV) infection is the major risk factor for liver cirrhosis and hepatocellular carcinoma (HCC). The mechanisms of HCC initiation, growth, and metastasis appear to be highly complex due to the decade-long interactions between the virus, immune system, and overlapping bystander effects of host metabolic liver disease. The lack of a readily accessible animal model system for HCV is a significant obstacle to understand the mechanisms of viral carcinogenesis. Traditionally, the primary prevention strategy of HCC has been to eliminate infection by antiviral therapy. The success of virus elimination by antiviral treatment is determined by the SVR when the HCV is no longer detectable in serum. Interferon-alpha (IFN-α) and its analogs, pegylated IFN-α (PEG-IFN-α) alone with ribavirin (RBV), have been the primary antiviral treatment of HCV for many years with a low cure rate. The cloning and sequencing of HCV have allowed the development of cell culture models, which accelerated antiviral drug discovery. It resulted in the selection of highly effective direct-acting antiviral (DAA)-based combination therapy that now offers incredible success in curing HCV infection in more than 95% of all patients, including those with cirrhosis. However, several emerging recent publications claim that patients who have liver cirrhosis at the time of DAAs treatment face the risk of HCC occurrence and recurrence after viral cure. This remains a substantial challenge while addressing the long-term benefit of antiviral medicine. The host-related mechanisms that drive the risk of HCC in the absence of the virus are unknown. This review describes the multifaceted mechanisms that create a tumorigenic environment during chronic HCV infection. In addition to the potential oncogenic programming that drives HCC after viral clearance by DAAs, the current status of a biomarker development for early prediction of cirrhosis regression and HCC detection post viral treatment is discussed. Since DAAs treatment does not provide full protection against reinfection or viral transmission to other individuals, the recent studies for a vaccine development are also reviewed.
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Affiliation(s)
- Srikanta Dash
- Department of Pathology and Laboratory Medicine, Tulane University Health Sciences Center, New Orleans, LA 70112, USA.,Southeast Louisiana Veterans Health Care System, New Orleans, LA 70119, USA.,Department of Medicine, Division of Gastroenterology, Tulane University Health Sciences Center, New Orleans, LA 70112, USA
| | - Yucel Aydin
- Department of Pathology and Laboratory Medicine, Tulane University Health Sciences Center, New Orleans, LA 70112, USA
| | - Kyle E Widmer
- Southeast Louisiana Veterans Health Care System, New Orleans, LA 70119, USA
| | - Leela Nayak
- Southeast Louisiana Veterans Health Care System, New Orleans, LA 70119, USA
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50
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Al Mamun A, Wu Y, Jia C, Munir F, Sathy KJ, Sarker T, Monalisa I, Zhou K, Xiao J. Role of pyroptosis in liver diseases. Int Immunopharmacol 2020; 84:106489. [PMID: 32304992 DOI: 10.1016/j.intimp.2020.106489] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/03/2020] [Accepted: 04/05/2020] [Indexed: 12/17/2022]
Abstract
Pyroptosis is known as a novel form of pro-inflammatory cell death program, which is exceptional from other types of cell death programs. Particularly, pyroptosis is characterized by Gasdermin family-mediated pore formation and subsequently cellular lysis, also release of several pro-inflammatory intracellular cytokines. In terms of mechanism, there are two signaling pathways involved in pyroptosis, including caspase-1, and caspase-4/5/11 mediated pathways. However, pyroptosis plays important roles in immune defense mechanisms. Recent studies have demonstrated that pyroptosis plays significant roles in the development of liver diseases. In our review, we have focused on the role of pyroptosis based on the molecular and pathophysiological mechanisms in the development of liver diseases. We have also highlighted targeting of pyroptosis for the therapeutic implications in liver diseases in the near future.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou 325035, Zhejiang Province, China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Kasfia Jahan Sathy
- Department of Pharmacy, North South University, Bashundhara, Dhaka 1229, Bangladesh
| | - Tamanna Sarker
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Ilma Monalisa
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.
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