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Zheng YB, Lu S, Chu TB, Pang GF, Yang LY, Zhang Q. Investigate the potential impact of Hemagglutinin from the H1N1 strain on severe pneumonia. Gene 2024; 926:148559. [PMID: 38740352 DOI: 10.1016/j.gene.2024.148559] [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: 01/20/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
The most prevalent glycoprotein on the influenza virus envelope is called hemagglutinin (HA), yet little is known about its involvement in the pathophysiology and etiology of severe influenza pneumonia. Here, after stimulating human bronchial epithelial cells (16-HBE) and mice with HA of H1N1 for 12 h, we investigated the proliferation, migration, inflammatory cytokines expression, and apoptosis in 16-HBE and the pathological damage in mouse lung tissue. The expression of inflammatory cytokines plasminogen activator inhibitor 1(PAI-1), urokinase-type (uPA) and tissue-type (tPA) plasminogen activators, and apoptosis were all enhanced by HA, which also prevented the proliferation and migration of bronchial epithelial cells. HA enhanced up-regulated PAI-1, uPA, and tPA protein expression within mouse lung tissue and caused lung injury. In conclusion, HA alone, but not the whole H1N1 virus, induces lung tissue injury by inhibiting cell proliferation and migration, while promoting the expression of inflammatory cytokines and apoptosis.
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Affiliation(s)
- Yu-Bi Zheng
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China.
| | - Song Lu
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China
| | - Tian-Bao Chu
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China
| | - Gui-Feng Pang
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China
| | - Lin-Ying Yang
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China
| | - Qing Zhang
- Affiliated Hospital of Chengde Medical University, Department of Respiratory and Critical Care Medicine, Chengde 067000, Hebei, China.
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2
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Hara H, Chida J, Batchuluun B, Takahashi E, Kido H, Sakaguchi S. Protective role of cytosolic prion protein against virus infection in prion-infected cells. J Virol 2024; 98:e0126224. [PMID: 39194237 PMCID: PMC11406989 DOI: 10.1128/jvi.01262-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Accepted: 07/26/2024] [Indexed: 08/29/2024] Open
Abstract
Production of the amyloidogenic prion protein, PrPSc, which forms infectious protein aggregates, or prions, is a key pathogenic event in prion diseases. Functional prion-like protein aggregations, such as the mitochondrial adaptor protein MAVS and the inflammasome component protein ASC, have been identified to play a protective role in viral infections in mammalian cells. In this study, to investigate if PrPSc could play a functional role against external stimuli, we infected prion-infected cells with a neurotropic influenza A virus strain, IAV/WSN. We found that prion-infected cells were highly resistant to IAV/WSN infection. In these cells, NF-κB nuclear translocation was disturbed; therefore, mitochondrial superoxide dismutase (mtSOD) expression was suppressed, and mitochondrial reactive oxygen species (mtROS) was increased. The elevated mtROS subsequently activated NLRP3 inflammasomes, leading to the suppression of IAV/WSN-induced necroptosis. We also found that prion-infected cells accumulated a portion of PrP molecules in the cytosol, and that the N-terminal potential nuclear translocation signal of PrP impeded NF-κB nuclear translocation. These results suggest that PrPSc might play a functional role in protection against viral infections by stimulating the NLRP3 inflammasome-dependent antivirus mechanism through the cytosolic PrP-mediated disturbance of NF-κB nuclear translocation, which leads to suppression of mtSOD expression and consequently upregulation of the NLRP3 inflammasome activator mtROS. IMPORTANCE Cytosolic PrP has been detected in prion-infected cells and suggested to be involved in the neurotoxicity of prions. Here, we also detected cytosolic PrP in prion-infected cells. We further found that the nuclear translocation of NF-κB was disturbed in prion-infected cells and that the N-terminal potential nuclear translocation signal of PrP expressed in the cytosol disturbed the nuclear translocation of NF-κB. Thus, the N-terminal nuclear translocation signal of cytosolic PrP might play a role in prion neurotoxicity. Prion-like protein aggregates in other protein misfolding disorders, including Alzheimer's disease were reported to play a protective role against various environmental stimuli. We here showed that prion-infected cells were partially resistant to IAV/WSN infection due to the cytosolic PrP-mediated disturbance of the nuclear translocation of NF-κB, which consequently activated NLRP3 inflammasomes after IAV/WSN infection. It is thus possible that prions could also play a protective role in viral infections.
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Affiliation(s)
- Hideyuki Hara
- Division of Molecular Neurobiology, The Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima, Japan
- Core Research Facility, Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka, Japan
| | - Junji Chida
- Division of Molecular Neurobiology, The Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima, Japan
| | - Batzaya Batchuluun
- Division of Molecular Neurobiology, The Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima, Japan
| | - Etsuhisa Takahashi
- Division of Enzyme Chemistry, The Institute for Enzyme Research, Tokushima University (KOSOKEN), Tokushima, Japan
| | - Hiroshi Kido
- Division of Enzyme Chemistry, The Institute for Enzyme Research, Tokushima University (KOSOKEN), Tokushima, Japan
| | - Suehiro Sakaguchi
- Division of Molecular Neurobiology, The Institute for Enzyme Research (KOSOKEN), Tokushima University, Tokushima, Japan
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Panganiban RA, Nadeau KC, Lu Q. Pyroptosis, gasdermins and allergic diseases. Allergy 2024; 79:2380-2395. [PMID: 39003568 PMCID: PMC11368650 DOI: 10.1111/all.16236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/15/2024]
Abstract
Pyroptosis is an inflammatory form of programmed cell death that is distinct from necrosis and apoptosis. Pyroptosis is primarily mediated by the gasdermin family of proteins (GSDMA-E and PVJK), which, when activated by proteolytic cleavage, form pores in the plasma membrane, leading to cell death. While much of the past research on pyroptosis has focused on its role in cancer, metabolic disorders, and infectious diseases, recent experimental and observational studies have begun to implicate pyroptosis in allergic diseases. These studies suggest that gasdermin-mediated pyroptosis contributes to the development of allergic conditions and could offer novel targets for therapy. Here, we review our current understanding of pyroptosis with an emphasis on the role of gasdermins as executioners of pyroptosis and potential mediators to allergic disease. We highlight new discoveries that establish a mechanistic link between the biochemical actions of gasdermins and the onset of allergic diseases. Additionally, we discuss how pyroptosis and gasdermins might contribute to the dysfunction of epithelial barrier, a key factor believed to initiate the progression of various allergic diseases.
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Affiliation(s)
- Ronald Allan Panganiban
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Kari C Nadeau
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Division of Allergy and Inflammation, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Quan Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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Fang F, Wang B, Lu X, Wang L, Chen X, Wang G, Yang Y. miR-126a-5p inhibits H1N1-induced inflammation and matrix protease secretion in lung fibroblasts by targeting ADAMTS-4. Arch Virol 2024; 169:164. [PMID: 38990242 DOI: 10.1007/s00705-024-06086-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/26/2024] [Indexed: 07/12/2024]
Abstract
Upregulation of ADAMTS-4 has been reported to have an important role in lung injury, and ADAMTS-4 expression is regulated by miR-126a-5p in abdominal aortic aneurysms. The aim of this study was to investigate whether miR-126a-5p/ADAMTS-4 plays a role in influenza-virus-induced lung injury. Lung fibroblasts were infected with H1N1 influenza virus to detect changes in miR-126a-5p and ADAMTS-4 expression, and cell viability was measured by CCK-8 assay. Inflammatory factors and matrix protease levels were examined using ELISA kits, and cell apoptosis was assessed by measuring the levels of apoptosis-related proteins. A dual luciferase assay was used to verify the regulatory relationship between miR-126a-5p and ADAMTS-4. H1N1 influenza virus reduced fibroblast viability, inhibited miR-126a-5p expression, and promoted ADAMTS-4 expression. Overexpression of miR-126a-5p attenuated the cellular inflammatory response, apoptosis, matrix protease secretion, and virus replication. Luciferase reporter assays revealed that miR-126a-5p inhibited ADAMTS-4 expression by targeting ADAMTS-4 mRNA. Further experiments showed that overexpression of ADAMTS-4 significantly reversed the inhibitory effects of miR-126a-5p on fibroblast inflammation, apoptosis, matrix protease secretion, and virus replication. Upregulation of miR-126a-5p inhibits H1N1-induced apoptosis, inflammatory factors, and matrix protease secretion, as well as virus replication in lung fibroblasts.
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Affiliation(s)
- Fang Fang
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Borong Wang
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Xiang Lu
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Li Wang
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Xiangjun Chen
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Guanghui Wang
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China
| | - Yifan Yang
- The 2nd department of Critical Care Medicine, Xi'an Chest Hospital, Hangtian Avenue East Section, Chang'an District, Xi'an, Shaanxi, 710100, China.
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Deng D, Zhao M, Liu H, Zhou S, Liu H, You L, Hao Y. Xijiao Dihuang decoction combined with Yinqiao powder promotes autophagy-dependent ROS decrease to inhibit ROS/NLRP3/pyroptosis regulation axis in influenza virus infection. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155446. [PMID: 38518643 DOI: 10.1016/j.phymed.2024.155446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 01/17/2024] [Accepted: 02/09/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Influenza viral pneumonia is a common complication after influenza virus infection. Xijiao Dihuang Decoction combined with Yinqiao Powder (XDY) is effective on improving influenza viral pneumonia. PURPOSE This study further explores the anti-inflammatory mechanism of XDY in the treatment of influenza viral pneumonia. STUDY DESIGN The effects of XDY on inflammation, autophagy, NACHT-LRR-PYD-containing protein 3 (NLRP3) inflammasome and pyroptosis were assessed in the mice with influenza viral pneumonia. In addition, the mouse macrophage cell line (J774A.1) infected with influenza virus was adopted to decode the in vitro effects of XDY on autophagy, reactive oxygen species (ROS), NLRP3 inflammasome and pyroptosis. We analyzed the XDY-induced autophagy, especially the mitophagy-related ROS clearance, and the subsequent inhibition of ROS/NLRP3 inflammasome/pyroptosis signaling in the infected macrophages by different assays based on quantitative polymerase chain reaction, western blot, flow cytometry, immunofluorescence and enzyme-linked immunosorbent assay. RESULTS In vivo, XDY could effectively improve the lung inflammatory response in the mice with influenza virus pneumonia, due to an intact autophagy flux-promoting effect and the inhibiting roles on NLRP3 inflammasome and pyroptosis. Notably, in vitro, compared with the infected macrophages treated by the NLRP3 inflammasome agonist (Monosodium urate) or the mitochondrial-targeted antioxidant agent, the XDY-dependent treating could inhibit pyroptosis by negatively regulating the signaling axis of ROS/NLRP3 inflammasome/pyroptosis in the influenza virus-infected macrophages. More interestingly, XDY could promote an intact autophagy flux, inducing mitophagy eliminating the damaged mitochondria to reduce the intracellular ROS accumulation, and thus decrease the oxidative stress in the infected macrophages. Especially, the inhibitor of autophagy inition, 3-Methyladenine, could reverse the inhibitory effect of XDY on ROS-NLRP3 inflammasome-mediated pyroptosis, indicating an XDY-promoted mitophagy-dependent ROS scavenging. CONCLUSION XDY can promote an intact autophagy flux to eliminate damaged mitochondria, namely mitophagy, which reduces the intracellular ROS accumulation contributing to NLRP3 inflammasome activation, restricting pyroptosis and eventually alleviating the influenza virus-induced inflammatory lesions. The obtained results provide new insights into the mechanism of action of XDY in alleviating influenza virus pneumonia, especially the roles of XDY in anti-oxidation, anti-inflammation and anti-pyroptosis, with potential therapeutic targets for future application in integrative medicine.
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Affiliation(s)
- Di Deng
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China
| | - Mengfan Zhao
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China
| | - Huanwei Liu
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China
| | - Siyao Zhou
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China
| | - Hui Liu
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China
| | - Leiming You
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China.
| | - Yu Hao
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, No. 11 North Three-ring East Road, Chao Yang District, Beijing 100029, China.
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Loftus SN, Gharaee-Kermani M, Xu B, Moore TM, Hannoudi A, Mallbris MJ, Klein B, Gudjonsson JE, Kahlenberg JM. Interferon alpha promotes caspase-8 dependent ultraviolet light-mediated keratinocyte apoptosis via interferon regulatory factor 1. Front Immunol 2024; 15:1384606. [PMID: 38660315 PMCID: PMC11039837 DOI: 10.3389/fimmu.2024.1384606] [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: 02/09/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Ultraviolet (UV) light is a known trigger of both cutaneous and systemic disease manifestations in lupus patients. Lupus skin has elevated expression of type I interferons (IFNs) that promote increased keratinocyte (KC) death after UV exposure. The mechanisms by which KC cell death is increased by type I IFNs are unknown. Methods Here, we examine the specific cell death pathways that are activated in KCs by type I IFN priming and UVB exposure using a variety of pharmacological and genetic approaches. Mice that overexpress Ifnk in the epidermis were exposed to UVB light and cell death was measured. RNA-sequencing from IFN-treated KCs was analyzed to identify candidate genes for further analysis that could drive enhanced cell death responses after UVB exposure. Results We identify enhanced activation of caspase-8 dependent apoptosis, but not other cell death pathways, in type I IFN and UVB-exposed KCs. In vivo, overexpression of epidermal Ifnk resulted in increased apoptosis in murine skin after UVB treatment. This increase in KC apoptosis was not dependent on known death ligands but rather dependent on type I IFN-upregulation of interferon regulatory factor 1 (IRF1). Discussion These data suggest that enhanced sensitivity to UV light exhibited by lupus patients results from type I IFN priming of KCs that drives IRF1 expression resulting in caspase-8 activation and increased apoptosis after minimal exposures to UVB.
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Affiliation(s)
- Shannon N. Loftus
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, United States
| | - Mehrnaz Gharaee-Kermani
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Bin Xu
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Tyson M. Moore
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Andrew Hannoudi
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Mischa J. Mallbris
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Benjamin Klein
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | | | - J. Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
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Yu G, Choi YK, Lee S. Inflammasome diversity: exploring novel frontiers in the innate immune response. Trends Immunol 2024; 45:248-258. [PMID: 38519271 DOI: 10.1016/j.it.2024.02.004] [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: 01/24/2024] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/24/2024]
Abstract
Pathogens elicit complex mammalian immune responses by activating multiple sensors within inflammasomes, which recognize diverse pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). This simultaneous activation induces the formation of protein complexes referred to as multiple inflammasomes, that orchestrate a spectrum of programmed cell death pathways, including pyroptosis, apoptosis, and necroptosis. This concept is crucial for comprehending the complexity of the innate immune system's response to diverse pathogens and its implications for various diseases. Novel contributions here include emphasizing simultaneous sensor activation by pathogens, proposing the existence of multiple inflammasome complexes, and advocating for further exploration of their structural basis. Understanding these mechanisms may offer insights into disease pathogenesis, paving the way for potential therapeutic interventions targeting inflammasome-mediated immune responses.
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Affiliation(s)
- Gyeongju Yu
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Young Ki Choi
- Center for Study of Emerging and Re-emerging Viruses, Korea Virus Research Institute, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - SangJoon Lee
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea; Graduate School of Health Science and Technology, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
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Yang L, Huang S, Wang ZA, Han D, Gan Y, Geng R, Zuo H, Guo Z, Weng S, He J, Xu X. Oral delivery of bacteria expressing wsv108 gene-specific dsRNA protects shrimp from white spot syndrome virus (WSSV) infection. Int J Biol Macromol 2024; 261:129840. [PMID: 38302014 DOI: 10.1016/j.ijbiomac.2024.129840] [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: 10/21/2023] [Revised: 01/18/2024] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Double-stranded RNA (dsRNA) can specifically inhibit gene expression by RNA interference and has important application potential in animal disease control. White spot syndrome virus (WSSV) is one of the most harmful pathogens in shrimp aquaculture, causing huge economic losses every year. In this study, we investigated the function of the WSSV-encoded wsv108 protein. We demonstrated that wsv108 could promote apoptosis by interacting with heat shock protein 70 (HSP70) and enhancing the expression of multiple apoptosis-related genes. Silencing of wsv108 gene by injection with specific dsRNA prepared by in vitro transcription significantly increased the survival rate of WSSV-infected shrimp and reduced the viral load in tissues, suggesting that wsv108 is important for WSSV pathogenicity. Based on this, we expressed the wsv108 specific dsRNA in engineered Escherichia coli. Oral feeding of this bacterium could inhibit the expression of wsv108, increase the survival rate of WSSV-infected shrimp, and decrease the viral load of WSSV in tissues. Therefore, this study developed a new method for treatment of WSSV disease by oral administration of bacterially expressed dsRNA against a novel therapeutic target molecule, which could be a potential candidate strategy for WSSV control in aquaculture.
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Affiliation(s)
- Linwei Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Siyou Huang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Zi-Ang Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Deyu Han
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Yushi Gan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Ran Geng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China
| | - Hongliang Zuo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China; Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China
| | - Zhixun Guo
- South China Sea Fisheries Research Institute (CAFS), Guangzhou 510300, China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China; Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China
| | - Jianguo He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China; Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China
| | - Xiaopeng Xu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, PR China; Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China.
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9
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Chen Y, Zeng D, Wei G, Liao Z, Liang R, Huang X, Lu WW, Chen Y. Pyroptosis in Osteoarthritis: Molecular Mechanisms and Therapeutic Implications. J Inflamm Res 2024; 17:791-803. [PMID: 38348279 PMCID: PMC10860821 DOI: 10.2147/jir.s445573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/20/2024] [Indexed: 02/15/2024] Open
Abstract
Osteoarthritis (OA) is a chronic disease that causes pain and functional impairment by affecting joint tissue. Its global impact is noteworthy, causing significant economic losses and property damage. Despite extensive research, the underlying pathogenesis of OA remain an area of ongoing investigation. It has recently been discovered that the OA progression is significantly influenced by pyroptosis. Pyroptosis is a complex process that involves three pathways culminating in the assembly of Gasdermin-D (GSDMD)-N-terminal (GSDMD-NT) into pores through aggregation on the plasma membrane. The aggregation of GSDMD-NT proteins stimulates the release of inflammatory mediators, such as Interleukin-1β (IL-1β), Interleukin-18 (IL-18), and Matrix Metallopeptidase 13 (MMP13), ultimately leading to cellular lysis. The pyroptosis process in specific cells, including synovial macrophages, fibroblast-like synoviocytes (FLS), chondrocytes, and subchondral osteoblasts, contributs factor to the development of OA. Currently, the specific cells that undergo pyroptosis first are not yet fully understood, and it remains unknown whether pyroptosis in one cell can trigger the same process in other cells. Therefore, targeting pyroptosis could potentially offer a novel treatment approach for OA patients. We present a comprehensive analysis of the molecular mechanisms and key features of pyroptosis. We also outline the current research progress on various aspects, including synovial tissue, articular cartilage, extracellular matrix (ECM), and subchondral bone, with a focus on pyroptosis. The aim is to provide theoretical references for the effective management of OA.
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Affiliation(s)
- Yeping Chen
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Daofu Zeng
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Guizheng Wei
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Zhidong Liao
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Rongyuan Liang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiajie Huang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - William W Lu
- Department of Orthopedics and Traumatology, the University of Hong Kong, Hong Kong, People’s Republic of China
| | - Yan Chen
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
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10
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Cao B, Bao Y, Liu C, Qi Q, Zhao Y, Yang F. A gene polymorphism at SP-B 1580 site regulates the pulmonary surfactant tension of viral pneumonia through the cellular pyroptosis signaling pathway. Am J Transl Res 2023; 15:6949-6958. [PMID: 38186981 PMCID: PMC10767512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Viral pneumonias, such as SARS and MERS, have been a recurrent challenge for the public healthcare system. COVID-19 posed an unprecedented global crisis. The primary impact of viral pneumonia is pathologic changes of lung tissue. However, the effect of SP-B site gene polymorphism on alveolar surface tension in viral pneumonia remains unexplored. OBJECTIVE To explore the molecular mechanism of how the gene polymorphism at SP-B 1580 site regulates the pulmonary surfactant tension of viral pneumonia through the cellular pyroptosis signaling pathway using an in vivo animal experiment and a clinical trial. METHODS We constructed a genetically modified mouse model of viral pneumonia and administered H5N1 influenza virus through intratracheal injection. After 48 hours, the survival rate of each mouse group was evaluated. Lung tissue, blood, and bronchoalveolar lavage fluid samples were collected for histopathologic analysis. Inflammatory factor concentrations were measured using ELISA. The level of apoptosis was determined using TUNEL assay. Changes in the expression of cell death-related factors were assessed using qRT-PCR and protein blotting. Additionally, blood samples from patients with viral pneumonia were analyzed to detect single nucleotide polymorphisms and explore their correlation with disease severity, inflammatory factor levels, and pulmonary surfactant protein expression. RESULTS Following H5N1 infection of mice, the model group and hSP-B-C group showed high mortality rates within 24 hours. The survival rates in the blank control group, virus model group, hSP-B-C group, and hSP-B-T group were 100%, 50%, 37.5%, and 75%, respectively. Histologic analysis revealed significant lung tissue damage, congestion, alveolar destruction, and thickened alveolar septa in the model and hSP-B-C groups. However, these pulmonary lesions were significantly alleviated in the hSP-B-T group. Inflammatory factor levels were elevated in the model and hSP-B-C groups but reduced in the hSP-B-T group. TUNEL assay demonstrated a decrease in apoptotic cells in the lungs of the hSP-B-T group. Furthermore, the expression of SP-B and cell death-related proteins was downregulated in all three groups, with the lowest expression observed in the hSP-B-C group. The clinical trial found that patients with severe viral pneumonia exhibited a higher frequency of CC genotype and C allele in, along with increased inflammatory factor levels and decreased SP-B expression compared to those with mild-to-moderate viral pneumonia. CONCLUSION SP-B polymorphism at the 1580 site regulates lung surfactant tension through the cell pyroptosis signaling pathway, thus affecting the progression of viral pneumonia.
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Affiliation(s)
- Bin Cao
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
| | - Yuzhen Bao
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
| | - Chunli Liu
- Department of Critical Care Medicine, Shandong Province Public Health CenterJinan 250000, Shandong, China
| | - Qian Qi
- Respiratory Department, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory DiseasesJinan 250014, Shandong, China
| | - Yuanhao Zhao
- Clinical Laboratory, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Clinical Research Center of Critical Care MedicineJinan 271199, Shandong, China
| | - Fengyong Yang
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
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11
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Oh S, Lee J, Oh J, Yu G, Ryu H, Kim D, Lee S. Integrated NLRP3, AIM2, NLRC4, Pyrin inflammasome activation and assembly drive PANoptosis. Cell Mol Immunol 2023; 20:1513-1526. [PMID: 38008850 PMCID: PMC10687226 DOI: 10.1038/s41423-023-01107-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/31/2023] [Indexed: 11/28/2023] Open
Abstract
Inflammasomes are important sentinels of innate immune defense; they sense pathogens and induce the cell death of infected cells, playing key roles in inflammation, development, and cancer. Several inflammasome sensors detect and respond to specific pathogen- and damage-associated molecular patterns (PAMPs and DAMPs, respectively) by forming a multiprotein complex with the adapters ASC and caspase-1. During disease, cells are exposed to several PAMPs and DAMPs, leading to the concerted activation of multiple inflammasomes. However, the molecular mechanisms that integrate multiple inflammasome sensors to facilitate optimal host defense remain unknown. Here, we discovered that simultaneous inflammasome activation by multiple ligands triggered multiple types of programmed inflammatory cell death, and these effects could not be mimicked by treatment with a pure ligand of any single inflammasome. Furthermore, NLRP3, AIM2, NLRC4, and Pyrin were determined to be members of a large multiprotein complex, along with ASC, caspase-1, caspase-8, and RIPK3, and this complex drove PANoptosis. Furthermore, this multiprotein complex was released into the extracellular space and retained as multiple inflammasomes. Multiple extracellular inflammasome particles could induce inflammation after their engulfment by neighboring macrophages. Collectively, our findings define a previously unknown regulatory connection and molecular interaction between inflammasome sensors, which drives the assembly of a multiprotein complex that includes multiple inflammasome sensors and cell death regulators. The discovery of critical interactions among NLRP3, AIM2, NLRC4, and Pyrin represents a new paradigm in understanding the functions of these molecules in innate immunity and inflammasome biology as well as identifying new therapeutic targets for NLRP3-, AIM2-, NLRC4- and Pyrin-mediated diseases.
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Affiliation(s)
- SuHyeon Oh
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Jihye Lee
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Jueun Oh
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Gyoengju Yu
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Haesun Ryu
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Daesik Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - SangJoon Lee
- Department of Biological Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
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12
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Rosli S, Harpur CM, Lam M, West AC, Hodges C, Mansell A, Lawlor KE, Tate MD. Gasdermin D promotes hyperinflammation and immunopathology during severe influenza A virus infection. Cell Death Dis 2023; 14:727. [PMID: 37945599 PMCID: PMC10636052 DOI: 10.1038/s41419-023-06258-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Excessive inflammation and tissue damage during severe influenza A virus (IAV) infection can lead to the development of fatal pulmonary disease. Pyroptosis is a lytic and pro-inflammatory form of cell death executed by the pore-forming protein gasdermin D (GSDMD). In this study, we investigated a potential role for GSDMD in promoting the development of severe IAV disease. IAV infection resulted in cleavage of GSDMD in vivo and in vitro in lung epithelial cells. Mice genetically deficient in GSDMD (Gsdmd-/-) developed less severe IAV disease than wildtype mice and displayed improved survival outcomes. GSDMD deficiency significantly reduced neutrophil infiltration into the airways as well as the levels of pro-inflammatory cytokines TNF, IL-6, MCP-1, and IL-1α and neutrophil-attracting chemokines CXCL1 and CXCL2. In contrast, IL-1β and IL-18 responses were not largely impacted by GSDMD deficiency. In addition, Gsdmd-/- mice displayed significantly improved influenza disease resistance with reduced viral burden and less severe pulmonary pathology, including decreased epithelial damage and cell death. These findings indicate a major role for GSDMD in promoting damaging inflammation and the development of severe IAV disease.
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Affiliation(s)
- Sarah Rosli
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Maggie Lam
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Alison C West
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Christopher Hodges
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Ashley Mansell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
- Adiso Therapeutics, Concord, MA, USA
| | - Kate E Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Vic, Australia.
- Department of Molecular and Translational Sciences, Monash University, Clayton, Vic, Australia.
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13
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Lv L, Zhang Y, Kong R, Wang C, Wang X, Zhou X. Identification of pyroptosis-related signature and development of a novel prognostic model in diffuse large B-cell lymphoma. J Cancer Res Clin Oncol 2023; 149:12677-12690. [PMID: 37452851 DOI: 10.1007/s00432-023-05018-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE Emerging evidence suggests that pyroptosis plays an essential role in the development and progression of multiple cancers. However, the role of pyroptosis remains elusive in diffuse large B-cell lymphoma (DLBCL). METHODS The expression profile data of DLBCL and normal samples of pyroptosis-related genes (PRGs) were analyzed, and the clinical characteristics of DLBCL patients were further investigated. A prognostic model was established using LASSO-Cox regression analysis. The expression of these PRGs was validated by qRT-PCR in DLBCL cell lines. Cell proliferation assay and flow cytometry were utilized to explore the impact of pyroptosis inhibitor (disulfiram, DSF) combined with PD1/PD-L1 inhibitor (BMS1166) on DLBCL cell proliferation. RESULTS Most PRGs were dysregulated in DLBCL samples and associated with overall survival (OS). Six PRGs were selected to construct a prognostic risk score model. The qRT-PCR analysis revealed that CASP8, CASP9, NLRP1, NLRP6, and TIRAP are downregulated, while SCAF11 was significantly upregulated in DLBCL cell lines. This prognostic model divided DLBCL patients into low-risk and high-risk groups. Patients in the low-risk group exhibited lower mortality and longer OS than those in the high-risk group. The ROC curve and nomogram demonstrated this model's excellent predictive performance. GO and KEGG enrichment indicated that the differentially expressed genes (DEGs) between subgroups were associated with cellular protein modification processes and JAK-STAT signaling pathway regulation. Moreover, the risk score was correlated with the immune profile. Cell proliferation assay and flow cytometry further validated the synergistic anti-tumor effects of DSF and BMS1166 on DLBCL cells. CONCLUSION In summary, we developed a comprehensive prognostic model based on PRGs characteristics, which accurately predicted the prognosis of DLBCL patients. Pyroptosis-targeting coupled with immunotherapies would be a promising therapeutic strategy for DLBCL.
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Affiliation(s)
- Liemei Lv
- Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021, Shandong, China
| | - Yu Zhang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Ran Kong
- Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021, Shandong, China
| | - Cong Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021, Shandong, China.
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021, Shandong, China.
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006, China.
| | - Xiangxiang Zhou
- Department of Hematology, Shandong Provincial Hospital, Shandong University, No.324, Jingwu Road, Jinan, 250021, Shandong, China.
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
- Branch of National Clinical Research Center for Hematologic Diseases, Jinan, 250021, Shandong, China.
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 251006, China.
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14
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Guy C, Baran M, Ribó-Molina P, van den Hoogen BG, Bowie AG. Viral sensing by epithelial cells involves PKR- and caspase-3-dependent generation of gasdermin E pores. iScience 2023; 26:107698. [PMID: 37680489 PMCID: PMC10480325 DOI: 10.1016/j.isci.2023.107698] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023] Open
Abstract
Viral sensing in myeloid cells involves inflammasome activation leading to gasdermin pore formation, cytokine release, and cell death. However, less is known about viral sensing in barrier epithelial cells, which are critical to the innate immune response to RNA viruses. Here, we show that poly(I:C), a mimic of viral dsRNA, is sensed by NLRP1 in human bronchial epithelial cells, leading to inflammasome-dependent gasdermin D (GSDMD) pore formation via caspase-1. DsRNA also stimulated a parallel sensing pathway via PKR which activated caspase-3 to cleave gasdermin E (GSDME) to form active pores. Influenza A virus (IAV) infection of cells caused GSDME activation, cytokine release, and cell death, in a PKR-dependent but NLRP1-independent manner, involving caspase-8 and caspase-3. Suppression of GSDMD and GSDME expression increased IAV replication. These data clarify mechanisms of gasdermin cleavage in response to viral sensing and reveal that gasdermin pore formation is intrinsically antiviral in human epithelial cells.
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Affiliation(s)
- Coralie Guy
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Marcin Baran
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Pau Ribó-Molina
- Department of Viroscience, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Andrew G. Bowie
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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15
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Wei L, Wang X, Zhou H. Interaction among inflammasome, PANoptosise, and innate immune cells in infection of influenza virus: Updated review. Immun Inflamm Dis 2023; 11:e997. [PMID: 37773712 PMCID: PMC10521376 DOI: 10.1002/iid3.997] [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: 02/10/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Influenza virus (IV) is a leading cause of respiratory tract infections, eliciting responses from key innate immune cells such as Macrophages (MQs), Neutrophils, and Dendritic Cells (DCs). These cells employ diverse mechanisms to combat IV, with Inflammasomes playing a pivotal role in viral infection control. Cellular death mechanisms, including Pyroptosis, Apoptosis, and Necroptosis (collectively called PANoptosis), significantly contribute to the innate immune response. METHODS In this updated review, we delve into the intricate relationship between PANoptosis and Inflammasomes within innate immune cells (MQs, Neutrophils, and DCs) during IV infections. We explore the strategies employed by IV to evade these immune defenses and the consequences of unchecked PANoptosis and inflammasome activation, including the potential development of severe complications such as cytokine storms and tissue damage. RESULTS Our analysis underscores the interplay between PANoptosis and Inflammasomes as a critical aspect of the innate immune response against IV. We provide insights into IV's various mechanisms to subvert these immune pathways and highlight the importance of understanding these interactions to develop effective antiviral medications. CONCLUSION A comprehensive understanding of the dynamic interactions between PANoptosis, Inflammasomes, and IV is essential for advancing our knowledge of innate immune responses to viral infections. This knowledge will be invaluable in developing targeted antiviral therapies to combat IV and mitigate potential complications, including cytokine storms and tissue damage.
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Affiliation(s)
- Li Wei
- Intensive Care Unit, Huzhou Third Municipal hospitalThe Affiliated hospital of Huzhou UniversityHuzhouChina
| | - Xufang Wang
- Intensive Care Unit, Huzhou Third Municipal hospitalThe Affiliated hospital of Huzhou UniversityHuzhouChina
| | - Huifei Zhou
- Intensive Care Unit, Huzhou Third Municipal hospitalThe Affiliated hospital of Huzhou UniversityHuzhouChina
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16
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Bi M, Li D, Zhang J. Research progress and insights on the role of ferroptosis in wound healing. Int Wound J 2023; 20:2473-2481. [PMID: 36788729 PMCID: PMC10333008 DOI: 10.1111/iwj.14102] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 02/16/2023] Open
Abstract
Ferroptosis is a newly discovered cell death type which is different from apoptosis, autophagy, pyroptosis as well as necrosis in the following aspects: morphology, biochemistry, gene and regulatory mechanisms. Ferroptosis is regulated by multiples of mechanisms such as system Xc- mechanism, glutathione peroxidase 4 (GPX4) mechanism, iron metabolism and lipid metabolism. Currently, ferroptosis has been revealed to be significant in wound healing such as diabetic wound, irradiated wound and ultraviolet (UV)-driven wound. Hence, how to intervene in the pathogenesis as well as the development of wounds and promote the wound healing by the regulation of ferroptosis have become a research hotspot. This review systematically summarises the latest scientific advances of ferroptosis and wound healing fields, with hoping to propose a new insight and advance in the wound treatment.
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Affiliation(s)
- Minglei Bi
- Department of Plastic SurgeryLanzhou University Second HospitalLanzhouChina
| | - Danyi Li
- Department of OphthalmologyJiading Central Hospital University of Medicine & Health SciencesShanghaiChina
| | - Jin Zhang
- Department of Plastic SurgeryLanzhou University Second HospitalLanzhouChina
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17
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Wu A, Li Z, Wang Y, Chen Y, Peng J, Zhu M, Li Y, Song H, Zhou D, Zhang C, Lv Y, Zhao Z. Recombinant measles virus vaccine rMV-Hu191 exerts an oncolytic effect on esophageal squamous cell carcinoma via caspase-3/GSDME-mediated pyroptosis. Cell Death Discov 2023; 9:171. [PMID: 37202386 DOI: 10.1038/s41420-023-01466-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 04/26/2023] [Accepted: 05/05/2023] [Indexed: 05/20/2023] Open
Abstract
Oncolytic viruses have recently been proven to be an effective and promising cancer therapeutic strategy, but there is rare data about oncolytic therapy in esophageal squamous cell carcinoma (ESCC), especially oncolytic measles virotherapy. Therefore, this study aimed to explore whether the recombinant measles virus vaccine strain rMV-Hu191 has an oncolytic effect against ESCC cells in vitro and in vivo and elucidate the underlying mechanisms. Our results showed that rMV-Hu191 could efficiently replicate in and kill ESCC cells through caspase-3/GSDME-mediated pyroptosis. Mechanistically, rMV-Hu191 triggers mitochondrial dysfunction to induce pyroptosis, which is mediated by BAK (BCL2 antagonist/killer 1) or BAX (BCL2 associated X). Further analysis revealed that rMV-Hu191 activates inflammatory signaling in ESCC cells, which may enhance the oncolytic efficiency. Moreover, intratumoral injection of rMV-Hu191 induced dramatic tumor regression in an ESCC xenograft model. Collectively, these findings imply that rMV-Hu191 exhibits an antitumor effect through BAK/BAX-dependent caspase-3/GSDME-mediated pyroptosis and provides a potentially promising new therapy for ESCC treatment.
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Affiliation(s)
- Ailing Wu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
| | - Zhongyue Li
- Zhejiang University School of Medicine, Hangzhou, China
| | - Yilong Wang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yi Chen
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- Zhejiang University School of Medicine, Hangzhou, China
| | - Jinkai Peng
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Mengying Zhu
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yueyue Li
- Zhejiang Biosan Biotechnology Co., Ltd., Hangzhou, China
| | - Hai Song
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
- Department of Thoracic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Dongming Zhou
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Chudi Zhang
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- Zhejiang University School of Medicine, Hangzhou, China
| | - Yao Lv
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Zhengyan Zhao
- Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
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18
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Oh S, Lee S. Recent advances in ZBP1-derived PANoptosis against viral infections. Front Immunol 2023; 14:1148727. [PMID: 37261341 PMCID: PMC10228733 DOI: 10.3389/fimmu.2023.1148727] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/03/2023] [Indexed: 06/02/2023] Open
Abstract
Innate immunity is an important first line of defense against pathogens, including viruses. These pathogen- and damage-associated molecular patterns (PAMPs and DAMPs, respectively), resulting in the induction of inflammatory cell death, are detected by specific innate immune sensors. Recently, Z-DNA binding protein 1 (ZBP1), also called the DNA-dependent activator of IFN regulatory factor (DAI) or DLM1, is reported to regulate inflammatory cell death as a central mediator during viral infection. ZBP1 is an interferon (IFN)-inducible gene that contains two Z-form nucleic acid-binding domains (Zα1 and Zα2) in the N-terminus and two receptor-interacting protein homotypic interaction motifs (RHIM1 and RHIM2) in the middle, which interact with other proteins with the RHIM domain. By sensing the entry of viral RNA, ZBP1 induces PANoptosis, which protects host cells against viral infections, such as influenza A virus (IAV) and herpes simplex virus (HSV1). However, some viruses, particularly coronaviruses (CoVs), induce PANoptosis to hyperactivate the immune system, leading to cytokine storm, organ failure, tissue damage, and even death. In this review, we discuss the molecular mechanism of ZBP1-derived PANoptosis and pro-inflammatory cytokines that influence the double-edged sword of results in the host cell. Understanding the ZBP1-derived PANoptosis mechanism may be critical for improving therapeutic strategies.
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19
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Bykov Y, Dawodu G, Javaheri A, Garcia-Sastre A, Cuadrado-Castano S. Immune responses elicited by ssRNA(-) oncolytic viruses in the host and in the tumor microenvironment. JOURNAL OF CANCER METASTASIS AND TREATMENT 2023; 9:10. [PMID: 37974615 PMCID: PMC10653360 DOI: 10.20517/2394-4722.2022.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Oncolytic viruses (OVs) are at the forefront of biologicals for cancer treatment. They represent a diverse landscape of naturally occurring viral strains and genetically modified viruses that, either as single agents or as part of combination therapies, are being evaluated in preclinical and clinical settings. As the field gains momentum, the research on OVs has been shifting efforts to expand our understanding of the complex interplay between the virus, the tumor and the immune system, with the aim of rationally designing more efficient therapeutic interventions. Nowadays, the potential of an OV platform is no longer defined exclusively by the targeted replication and cancer cell killing capacities of the virus, but by its contribution as an immunostimulator, triggering the transformation of the immunosuppressive tumor microenvironment (TME) into a place where innate and adaptive immunity players can efficiently engage and lead the development of tumor-specific long-term memory responses. Here we review the immune mechanisms and host responses induced by ssRNA(-) (negative-sense single-stranded RNA) viruses as OV platforms. We focus on two ssRNA(-) OV candidates: Newcastle disease virus (NDV), an avian paramyxovirus with one of the longest histories of utilization as an OV, and influenza A (IAV) virus, a well-characterized human pathogen with extraordinary immunostimulatory capacities that is steadily advancing as an OV candidate through the development of recombinant IAV attenuated platforms.
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Affiliation(s)
- Yonina Bykov
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Gloria Dawodu
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Aryana Javaheri
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo Garcia-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sara Cuadrado-Castano
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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20
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Liu Z, Wang C, Lin C. Pyroptosis as a double-edged sword: The pathogenic and therapeutic roles in inflammatory diseases and cancers. Life Sci 2023; 318:121498. [PMID: 36780939 DOI: 10.1016/j.lfs.2023.121498] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
Pyroptosis is a programmed cell death mode discovered in recent years. It is caused by inflammasomes and the perforation of Gasdermin family proteins, and results in the release of inflammatory factors and triggering of an inflammatory cascade response. The pathways of pyroptosis include the caspase-1-dependent canonical pathway, the caspase-4/5/11-dependent non-canonical pathway, other caspase-dependent pathways and caspase-independent pathways. Its morphological features are different from other programmed cell death modes (apoptosis, autophagy, etc.). Pyroptosis can be observed microscopically that abundant pores are formed in the cell membrane, resulting in cell swelling and rupture, and eventually leading to the outflow of cellular contents. In addition to causing tissue damage and dysfunction through inflammation, pyroptosis can also become a potential cancer treatment strategy by reducing drug resistance in cancer cells. However, many details are still unclear on the molecular mechanisms of its role in pathogenicity and therapeutics, and therefore lots of work needs to be done. This article reviews the morphological characteristics, pathogenic and therapeutic mechanisms of pyroptosis and its related research progress in inflammatory diseases and cancers. It helps to further understand the mechanism of pyroptosis and provide new ideas for the research and prevention of inflammatory diseases and cancers.
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Affiliation(s)
- Zuohao Liu
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Chunming Wang
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Changjun Lin
- School of Life Sciences, Lanzhou University, Lanzhou, China.
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21
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Zhao JY, Yuan XK, Luo RZ, Wang LX, Gu W, Yamane D, Feng H. Phospholipase A and acyltransferase 4/retinoic acid receptor responder 3 at the intersection of tumor suppression and pathogen restriction. Front Immunol 2023; 14:1107239. [PMID: 37063830 PMCID: PMC10102619 DOI: 10.3389/fimmu.2023.1107239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/22/2023] [Indexed: 04/03/2023] Open
Abstract
Phospholipase A and acyltransferase (PLAAT) 4 is a class II tumor suppressor with phospholipid metabolizing abilities. It was characterized in late 2000s, and has since been referred to as 'tazarotene-induced gene 3' (TIG3) or 'retinoic acid receptor responder 3' (RARRES3) as a key downstream effector of retinoic acid signaling. Two decades of research have revealed the complexity of its function and regulatory roles in suppressing tumorigenesis. However, more recent findings have also identified PLAAT4 as a key anti-microbial effector enzyme acting downstream of interferon regulatory factor 1 (IRF1) and interferons (IFNs), favoring protection from virus and parasite infections. Unveiling the molecular mechanisms underlying its action may thus open new therapeutic avenues for the treatment of both cancer and infectious diseases. Herein, we aim to summarize a brief history of PLAAT4 discovery, its transcriptional regulation, and the potential mechanisms in tumor prevention and anti-pathogen defense, and discuss potential future directions of PLAAT4 research toward the development of therapeutic approaches targeting this enzyme with pleiotropic functions.
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Affiliation(s)
- Jian-Yong Zhao
- Hospital of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Cangzhou, Hebei, China
| | - Xiang-Kun Yuan
- Hospital of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Cangzhou, Hebei, China
| | - Rui-Zhen Luo
- Hospital of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Cangzhou, Hebei, China
| | - Li-Xin Wang
- Hospital of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Cangzhou, Hebei, China
| | - Wei Gu
- School of Medicine, Chongqing University, Chongqing, China
| | - Daisuke Yamane
- Department of Diseases and Infection, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Hui Feng
- School of Medicine, Chongqing University, Chongqing, China
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22
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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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23
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Lin J, Sun S, Zhao K, Gao F, Wang R, Li Q, Zhou Y, Zhang J, Li Y, Wang X, Du L, Wang S, Li Z, Lu H, Lan Y, Song D, Guo W, Chen Y, Gao F, Zhao Y, Fan R, Guan J, He W. Oncolytic Parapoxvirus induces Gasdermin E-mediated pyroptosis and activates antitumor immunity. Nat Commun 2023; 14:224. [PMID: 36641456 PMCID: PMC9840172 DOI: 10.1038/s41467-023-35917-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
The advantage of oncolytic viruses (OV) in cancer therapy is their dual effect of directly killing tumours while prompting anti-tumour immune response. Oncolytic parapoxvirus ovis (ORFV) and other OVs are thought to induce apoptosis, but apoptosis, being the immunogenically inert compared to other types of cell death, does not explain the highly inflamed microenvironment in OV-challenged tumors. Here we show that ORFV and its recombinant therapeutic derivatives are able to trigger tumor cell pyroptosis via Gasdermin E (GSDME). This effect is especially prominent in GSDME-low tumor cells, in which ORFV-challenge pre-stabilizes GSDME by decreasing its ubiquitination and subsequently initiates pyroptosis. Consistently, GSDME depletion reduces the proportion of intratumoral cytotoxic T lymphocytes, pyroptotic cell death and the success of tumor ORFV virotherapy. In vivo, the OV preferentially accumulates in the tumour upon systemic delivery and elicits pyroptotic tumor killing. Consequentially, ORFV sensitizes immunologically 'cold' tumors to checkpoint blockade. This study thus highlights the critical role of GSDME-mediated pyroptosis in oncolytic ORFV-based antitumor immunity and identifies combinatorial cancer therapy strategies.
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Affiliation(s)
- Jing Lin
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Shihui Sun
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Kui Zhao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Fei Gao
- Department of Laboratory Animals, College of Animal Science, Jilin University, 130062, Changchun, China
| | - Renling Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Qi Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Yanlong Zhou
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Jing Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Yue Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Xinyue Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Le Du
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Shuai Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Zi Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Huijun Lu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Yungang Lan
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Deguang Song
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Wei Guo
- Department of Hematology, The first hospital of Jilin University, 130021, Changchun, China
| | - Yujia Chen
- Department of Gastrointestinal Surgery, The first hospital of Jilin University, 130021, Changchun, China
| | - Feng Gao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China
| | - Yicheng Zhao
- Changchun University of Chinese Medicine, 130017, Changchun, China
| | - Rongrong Fan
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Jiyu Guan
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China.
| | - Wenqi He
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 130062, Changchun, China.
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24
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Hudock KM, Collins MS, Imbrogno MA, Kramer EL, Brewington JJ, Ziady A, Zhang N, Snowball J, Xu Y, Carey BC, Horio Y, O’Grady SM, Kopras EJ, Meeker J, Morgan H, Ostmann AJ, Skala E, Siefert ME, Na CL, Davidson CR, Gollomp K, Mangalmurti N, Trapnell BC, Clancy JP. Alpha-1 antitrypsin limits neutrophil extracellular trap disruption of airway epithelial barrier function. Front Immunol 2023; 13:1023553. [PMID: 36703990 PMCID: PMC9872031 DOI: 10.3389/fimmu.2022.1023553] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/30/2022] [Indexed: 01/12/2023] Open
Abstract
Neutrophil extracellular traps contribute to lung injury in cystic fibrosis and asthma, but the mechanisms are poorly understood. We sought to understand the impact of human NETs on barrier function in primary human bronchial epithelial and a human airway epithelial cell line. We demonstrate that NETs disrupt airway epithelial barrier function by decreasing transepithelial electrical resistance and increasing paracellular flux, partially by NET-induced airway cell apoptosis. NETs selectively impact the expression of tight junction genes claudins 4, 8 and 11. Bronchial epithelia exposed to NETs demonstrate visible gaps in E-cadherin staining, a decrease in full-length E-cadherin protein and the appearance of cleaved E-cadherin peptides. Pretreatment of NETs with alpha-1 antitrypsin (A1AT) inhibits NET serine protease activity, limits E-cadherin cleavage, decreases bronchial cell apoptosis and preserves epithelial integrity. In conclusion, NETs disrupt human airway epithelial barrier function through bronchial cell death and degradation of E-cadherin, which are limited by exogenous A1AT.
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Affiliation(s)
- K. M. Hudock
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,*Correspondence: K. M. Hudock,
| | - M. S. Collins
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - M. A. Imbrogno
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - E. L. Kramer
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - J. J. Brewington
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - A. Ziady
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - N. Zhang
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - J. Snowball
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Y. Xu
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Divisions of Biomedical Informatics, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - B. C. Carey
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Translational Pulmonary Science Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Y. Horio
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Department of Respiratory Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto-shi, Kumamoto, Japan
| | - S. M. O’Grady
- Departments of Animal Science, University of Minnesota, St. Paul, MN, United States,Department of Integrative Biology and Physiology, University of Minnesota, St. Paul, MN, United States
| | - E. J. Kopras
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - J. Meeker
- Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - H. Morgan
- Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - A. J. Ostmann
- Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - E. Skala
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - M. E. Siefert
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - C. L. Na
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - C. R. Davidson
- Division of Pediatric Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - K. Gollomp
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, United States,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - N. Mangalmurti
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States,Pennsylvania Lung Biology Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - B. C. Trapnell
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States,Translational Pulmonary Science Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - J. P. Clancy
- Cystic Fibrosis Foundation, Bethesda, MD, United States
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25
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Ji S, Dai MY, Huang Y, Ren XC, Jiang ML, Qiao JP, Zhang WY, Xu YH, Shen JL, Zhang RQ, Fei GH. Influenza a virus triggers acute exacerbation of chronic obstructive pulmonary disease by increasing proinflammatory cytokines secretion via NLRP3 inflammasome activation. J Inflamm (Lond) 2022; 19:8. [PMID: 35739522 PMCID: PMC9219228 DOI: 10.1186/s12950-022-00305-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 06/06/2022] [Indexed: 11/29/2022] Open
Abstract
Background Influenza A virus (IAV) triggers acute exacerbation of chronic obstructive pulmonary disease (AECOPD), but the molecular mechanisms remain unclear. In this study, we investigated the role of IAV induced NLRP3 inflammasome activation to increase airway inflammation response in the progression of AECOPD. Methods Human bronchial epithelial cells were isolated and cultured from normal and COPD bronchial tissues and co-cultured with IAV. The NLRP3 inflammasome associated genes were identified using RNA sequencing, and the expressions of NLRP3 inflammasome components were measured using qRT-PCR and western blot after cells were transfected with siRNA and treated with MCC950. Moreover, IAV-induced COPD rat models were established to confirm the results; 37 AECOPD patients were included to measure the serum and bronchoalveolar lavage fluid (BALF) of interleukin (IL)-18 and IL-1β. Results Increased levels of NLRP3 inflammasome components were not seen until 6 h post-inoculation in normal cells. However, both cell groups reached peak NLRP3 level at 12 h post-inoculation and maintained it for up to 24 h. ASC, Caspase-1, IL-1β and IL-18 were also elevated in a similar time-dependent pattern in both cell groups. The mRNA and protein expression of the NLRP3 inflammasome components were decreased when COPD cells treated with siRNA and MCC950. In COPD rats, the NLRP3 inflammasome components were elevated by IAV. MCC950 alleviated lung damage, improved survival time, and reduced NLRP3 inflammasome components expression in COPD rats. Additionally, the serum and BALF levels of IL-1β and IL-18 were increased in AECOPD patients. Conclusions NLRP3 inflammasome is activated in COPD patients as a pre-existing condition that is further exacerbated by IAV infection. Supplementary Information The online version contains supplementary material available at 10.1186/s12950-022-00305-y.
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Engagement of the G3BP2-TRIM25 Interaction by Nucleocapsid Protein Suppresses the Type I Interferon Response in SARS-CoV-2-Infected Cells. Vaccines (Basel) 2022; 10:vaccines10122042. [PMID: 36560452 PMCID: PMC9781323 DOI: 10.3390/vaccines10122042] [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: 10/15/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
The nucleocapsid (N) protein contributes to key steps of the SARS-CoV-2 life cycle, including packaging of the virus genome and modulating interactions with cytoplasmic components. Expanding knowledge of the N protein acting on cellular proteins and interfering with innate immunity is critical for studying the host antiviral strategy. In the study on SARS-CoV-2 infecting human bronchial epithelial cell line s1(16HBE), we identified that the N protein can promote the interaction between GTPase-activating protein SH3 domain-binding protein 2 (G3BP2) and tripartite motif containing 25 (TRIM25), which is involved in formation of the TRIM25-G3BP2-N protein interactome. Our findings suggest that the N protein is enrolled in the inhibition of type I interferon production in the process of infection. Meanwhile, upgraded binding of G3BP2 and TRIM25 interferes with the RIG-I-like receptor signaling pathway, which may contribute to SARS-CoV-2 escaping from cellular innate immune surveillance. The N protein plays a critical role in SARS-CoV-2 replication. Our study suggests that the N protein and its interacting cellular components has potential for use in antiviral therapy, and adding N protein into the vaccine as an antigen may be a good strategy to improve the effectiveness and safety of the vaccine. Its interference with innate immunity should be strongly considered as a target for SARS-CoV-2 infection control and vaccine design.
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27
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Hu Q, Liu B, Fan Y, Zheng Y, Wen F, Yu U, Wang W. Multi-omics association analysis reveals interactions between the oropharyngeal microbiome and the metabolome in pediatric patients with influenza A virus pneumonia. Front Cell Infect Microbiol 2022; 12:1011254. [PMID: 36389138 PMCID: PMC9651038 DOI: 10.3389/fcimb.2022.1011254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/03/2022] [Indexed: 11/30/2022] Open
Abstract
Children are at high risk for influenza A virus (IAV) infections, which can develop into severe illnesses. However, little is known about interactions between the microbiome and respiratory tract metabolites and their impact on the development of IAV pneumonia in children. Using a combination of liquid chromatography tandem mass spectrometry (LC-MS/MS) and 16S rRNA gene sequencing, we analyzed the composition and metabolic profile of the oropharyngeal microbiota in 49 pediatric patients with IAV pneumonia and 42 age-matched healthy children. The results indicate that compared to healthy children, children with IAV pneumonia exhibited significant changes in the oropharyngeal macrobiotic structure (p = 0.001), and significantly lower microbial abundance and diversity (p < 0.05). These changes came with significant disturbances in the levels of oropharyngeal metabolites. Intergroup differences were observed in 204 metabolites mapped to 36 metabolic pathways. Significantly higher levels of sphingolipid (sphinganine and phytosphingosine) and propanoate (propionic acid and succinic acid) metabolism were observed in patients with IAV pneumonia than in healthy controls. Using Spearman’s rank-correlation analysis, correlations between IAV pneumonia-associated discriminatory microbial genera and metabolites were evaluated. The results indicate significant correlations and consistency in variation trends between Streptococcus and three sphingolipid metabolites (phytosphingosine, sphinganine, and sphingosine). Besides these three sphingolipid metabolites, the sphinganine-to-sphingosine ratio and the joint analysis of the three metabolites indicated remarkable diagnostic efficacy in children with IAV pneumonia. This study confirmed significant changes in the characteristics and metabolic profile of the oropharyngeal microbiome in pediatric patients with IAV pneumonia, with high synergy between the two factors. Oropharyngeal sphingolipid metabolites may serve as potential diagnostic biomarkers of IAV pneumonia in children.
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Affiliation(s)
- Qian Hu
- Department of Respiratory Diseases, Shenzhen Children’s Hospital, Shenzhen, China
| | - Baiming Liu
- Department of Respiratory Diseases, Shenzhen Children’s Hospital, Shenzhen, China
| | - Yanqun Fan
- Department of Trans-omics Research, Biotree Metabolomics Technology Research Center, Shanghai, China
| | - Yuejie Zheng
- Department of Respiratory Diseases, Shenzhen Children’s Hospital, Shenzhen, China
| | - Feiqiu Wen
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Uet Yu
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, China
- *Correspondence: Wenjian Wang, ; Uet Yu,
| | - Wenjian Wang
- Department of Respiratory Diseases, Shenzhen Children’s Hospital, Shenzhen, China
- *Correspondence: Wenjian Wang, ; Uet Yu,
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28
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Kelly JN, Laloli L, V’kovski P, Holwerda M, Portmann J, Thiel V, Dijkman R. Comprehensive single cell analysis of pandemic influenza A virus infection in the human airways uncovers cell-type specific host transcriptional signatures relevant for disease progression and pathogenesis. Front Immunol 2022; 13:978824. [PMID: 36268025 PMCID: PMC9576848 DOI: 10.3389/fimmu.2022.978824] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 09/01/2022] [Indexed: 12/04/2022] Open
Abstract
The respiratory epithelium constitutes the first line of defense against invading respiratory pathogens, such as the 2009 pandemic strain of influenza A virus (IAV, H1N1pdm09), and plays a crucial role in the host antiviral response to infection. Despite its importance, however, it remains unknown how individual cell types within the respiratory epithelium respond to IAV infection or how the latter may influence IAV disease progression and pathogenesis. Here, we used single cell RNA sequencing (scRNA-seq) to dissect the host response to IAV infection in its natural target cells. scRNA-seq was performed on human airway epithelial cell (hAEC) cultures infected with either wild-type pandemic IAV (WT) or with a mutant version of IAV (NS1R38A) that induced a robust innate immune response. We then characterized both the host and viral transcriptomes of more than 19,000 single cells across the 5 major cell types populating the human respiratory epithelium. For all cell types, we observed a wide spectrum of viral burden among single infected cells and a disparate host response between infected and bystander populations. Interestingly, we also identified multiple key differences in the host response to IAV among individual cell types, including high levels of pro-inflammatory cytokines and chemokines in secretory and basal cells and an important role for luminal cells in sensing and restricting incoming virus. Multiple infected cell types were shown to upregulate interferons (IFN), with type III IFNs clearly dominating the antiviral response. Transcriptional changes in genes related to cell differentiation, cell migration, and tissue repair were also identified. Strikingly, we also detected a shift in viral host cell tropism from non-ciliated cells to ciliated cells at later stages of infection and observed major changes in the cellular composition. Microscopic analysis of both WT and NS1R38A virus-infected hAECs at various stages of IAV infection revealed that the transcriptional changes we observed at 18 hpi were likely driving the downstream histopathological alterations in the airway epithelium. To our knowledge, this is the first study to provide a comprehensive analysis of the cell type-specific host antiviral response to influenza virus infection in its natural target cells – namely, the human respiratory epithelium.
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Affiliation(s)
- Jenna N. Kelly
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Laura Laloli
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Philip V’kovski
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Melle Holwerda
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Jasmine Portmann
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Volker Thiel
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- European Virus Bioinformatics Center (EVBC), Jena, Germany
| | - Ronald Dijkman
- Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Multidisciplinary Center for Infectious Diseases, University of Bern, Bern, Switzerland
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
- European Virus Bioinformatics Center (EVBC), Jena, Germany
- *Correspondence: Ronald Dijkman,
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An C, Wu Y, Wu J, Liu H, Zhou S, Ge D, Dong R, You L, Hao Y. Berberine ameliorates pulmonary inflammation in mice with influenza viral pneumonia by inhibiting NLRP3 inflammasome activation and gasdermin D‐mediated pyroptosis. Drug Dev Res 2022; 83:1707-1721. [DOI: 10.1002/ddr.21995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/10/2022] [Accepted: 08/23/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Chen An
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
| | - Yanmin Wu
- Department of Immunology, School of Medical Technology Qiqihar Medical University Qiqihar China
| | - Jun Wu
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
| | - Huanwei Liu
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
| | - Siyao Zhou
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
| | - Dongyu Ge
- Research and Test Center, School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing China
| | - Ruijuan Dong
- Research and Test Center, School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing China
| | - Leiming You
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
| | - Yu Hao
- Department of Immunology and Microbiology, School of Life Science Beijing University of Chinese Medicine Beijing China
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Shi Z, Gu J, Yao Y, Wu Z. Identification of a predictive gene signature related to pyroptosis for the prognosis of cutaneous melanoma. Medicine (Baltimore) 2022; 101:e30564. [PMID: 36086707 PMCID: PMC10980462 DOI: 10.1097/md.0000000000030564] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 08/11/2022] [Indexed: 12/24/2022] Open
Abstract
Pyroptosis is a form of inflammatory programmed cell death. However, because of no specific molecular biomarker, pyroptosis has not been considered as a novel therapeutic method to treat cutaneous melanoma (CM). Here, we identified pyroptosis genes that associate with the prognosis of CM patients and constructed an effective model for the prognostic prediction of CM patients. To identify genes related to pyroptosis that are differentially expressed in CM, we obtained gene expression data of CM patients and normal skin tissues from the Cancer Genome Atlas and the Genotype-Tissue Expression databases, and used another cohort obtained from Gene Expression Omnibus database for validation. Three genes (BST2, GBP5, and AIM2) that were associated with prognosis were found and incorporated into our prognostic model. Furthermore, we divided the patients into 2 groups: a high-risk group and a low-risk group. Functional analyses indicated that our model was correlated with patient survival and cancer growth. Multivariate and univariate Cox regressions revealed that the constructed model could serve as an independent prognostic factor for CM patients. Meanwhile, compared with other clinical characteristics, our model significantly improved the diagnostic accuracy. Gene function analysis revealed that pyroptosis genes BST2, GBP5, and AIM2 were differentially expressed in CM patients and positively associated with patient prognosis. Finally, a risk score was used to generate nomograms that displayed favorable discriminatory abilities for CM. In summary, our model could significantly predict the prognosis of CM patients and be used for the development of CM therapy.
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Affiliation(s)
- Zhaoyang Shi
- Department of Hand Plastic Surgery, The First People’s Hospital of Linping District, Hangzhou, China
| | - Jiaying Gu
- Department of Laboratory, Integrated Traditional Chinese and Western Medicine Hospital of Linping District, Hangzhou, China
| | - Yi Yao
- Department of Hand Plastic Surgery, The First People’s Hospital of Linping District, Hangzhou, China
| | - Zhengyuan Wu
- Department of Hand Plastic Surgery, The First People’s Hospital of Linping District, Hangzhou, China
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PRRSV Infection Induces Gasdermin D-Driven Pyroptosis of Porcine Alveolar Macrophages through NLRP3 Inflammasome Activation. J Virol 2022; 96:e0212721. [PMID: 35758658 PMCID: PMC9327688 DOI: 10.1128/jvi.02127-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
For more than 3 decades, mounting evidence has associated porcine reproductive and respiratory syndrome virus (PRRSV) infection with late-term abortions and stillbirths in sows and respiratory disease in piglets, causing enormous economic losses to the global swine industry. However, to date, the underlying mechanisms of PRRSV-triggered cell death have not been well clarified, especially in the pulmonary inflammatory injury characterized by the massive release of pro-inflammatory factors. Here, we demonstrated that PRRSV infection triggered gasdermin D-mediated host pyroptosis in vitro and in vivo. Mechanistically, PRRSV infection triggered disassembly of the trans-Golgi network (TGN); the dispersed TGN then acted as a scaffold for NLRP3 activation through phosphatidylinositol-4-phosphate. In addition, PRRSV replication-transcription complex (RTC) formation stimulated TGN dispersion and pyroptotic cell death. Furthermore, our results indicated that TMEM41B, an endoplasmic reticulum (ER)-resident host protein, functioned as a crucial host factor in the formation of PRRSV RTC, which is surrounded by the intermediate filament network. Collectively, these findings uncover new insights into clinical features as previously unrecognized mechanisms for PRRSV-induced pathological effects, which may be conducive to providing treatment options for PRRSV-associated diseases and may be conserved during infection by other highly pathogenic viruses. IMPORTANCE Porcine reproductive and respiratory syndrome virus (PRRSV) is one of the pathogens responsible for major economic losses in the global swine industry. Characterizing the detailed process by which PRRSV induces cell death pathways will help us better understand viral pathogenesis and provide implications for therapeutic intervention against PRRSV. Here, we showed that PRRSV infection induces GSDMD-driven host pyroptosis and IL-1β secretion through NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome activation in vitro and in vivo. Furthermore, the molecular mechanisms of PRRSV-induced NLRP3 inflammasome activation and pyroptosis are elucidated here. The dispersed trans-Golgi network (TGN) induced by PRRSV serves as a scaffold for NLRP3 aggregation into multiple puncta via phosphatidylinositol 4-phosphate (PtdIns4P). Moreover, the formation of PRRSV replication-transcription complex is essential for TGN dispersion and host pyroptosis. This research advances our understanding of the PRRSV-mediated inflammatory response and cell death pathways, paving the way for the development of effective treatments for PRRSV diseases.
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Rex DAB, Keshava Prasad TS, Kandasamy RK. Revisiting Regulated Cell Death Responses in Viral Infections. Int J Mol Sci 2022; 23:ijms23137023. [PMID: 35806033 PMCID: PMC9266763 DOI: 10.3390/ijms23137023] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/07/2023] Open
Abstract
The fate of a viral infection in the host begins with various types of cellular responses, such as abortive, productive, latent, and destructive infections. Apoptosis, necroptosis, and pyroptosis are the three major types of regulated cell death mechanisms that play critical roles in viral infection response. Cell shrinkage, nuclear condensation, bleb formation, and retained membrane integrity are all signs of osmotic imbalance-driven cytoplasmic swelling and early membrane damage in necroptosis and pyroptosis. Caspase-driven apoptotic cell demise is considered in many circumstances as an anti-inflammatory, and some pathogens hijack the cell death signaling routes to initiate a targeted attack against the host. In this review, the selected mechanisms by which viruses interfere with cell death were discussed in-depth and were illustrated by compiling the general principles and cellular signaling mechanisms of virus–host-specific molecule interactions.
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Affiliation(s)
| | - Thottethodi Subrahmanya Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, India
- Correspondence: (T.S.K.P.); (R.K.K.)
| | - Richard K. Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7491 Trondheim, Norway
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O Box 505055, United Arab Emirates
- Correspondence: (T.S.K.P.); (R.K.K.)
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Selva KJ, Chung AW. Insights into how SARS-CoV2 infection induces cytokine storms. Trends Immunol 2022; 43:417-419. [PMID: 35537983 PMCID: PMC9077489 DOI: 10.1016/j.it.2022.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 04/24/2022] [Indexed: 01/12/2023]
Abstract
Severe coronavirus disease 2019 (COVID-19) has been associated with cytokine storms and hyperinflammation. In a recent study, Junqueira et al. provide evidence that antibody-mediated uptake of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus by monocytes and macrophages may contribute to this inflammation by activating inflammasomes which trigger pyroptosis.
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Affiliation(s)
- Kevin John Selva
- Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Amy W. Chung
- Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia,Correspondence:
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Su K, Peng Y, Yu H. Development of a Prognostic Model Based on Pyroptosis-Related Genes in Pancreatic Adenocarcinoma. DISEASE MARKERS 2022; 2022:9141117. [PMID: 35677632 PMCID: PMC9169203 DOI: 10.1155/2022/9141117] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 11/17/2022]
Abstract
Background The importance of pyroptosis in tumorigenesis and cancer progression is becoming increasingly apparent. However, the efficacy of using pyroptosis-related genes (PRGs) in predicting the prognosis of pancreatic adenocarcinoma (PAAD) patients is unknown. Methods This investigation used two databases to obtain expression data for PAAD patients. Differentially expressed PRGs (DEPRGs) were identified between PAAD and control samples. Several bioinformatic approaches were used to analyze the biological functions of DEPRGs and to identify prognostic DERPGs. A miRNA-prognostic DEPRG-transcription factor (TF) regulatory network was created via the miRNet online tool. A risk score model was created after each patient's risk score was calculated. The microenvironments of the low- and high-risk groups were assessed using xCell, the expression of immune checkpoints was determined, and gene set variation analysis (GSVA) was performed. Finally, the efficacy of certain potential drugs was predicted using the pRRophetic algorithm, and the results in the high- and low-risk groups were compared. Results A total of 13 DEPRGs were identified between PAAD and control samples. Functional enrichment analysis showed that the DEPRGs had a close relationship with inflammation. In univariate and multivariate Cox regression analyses, GSDMC, IRF1, and PLCG1 were identified as prognostic biomarkers in PAAD. The results of the miRNA-prognostic DEPRG-TF regulatory network showed that GSDMC, IRF1, and PLCG1 were regulated by both specific and common miRNAs and TFs. Based on the risk score and other independent prognostic indicators, a nomogram with a good ability to predict the survival of PAAD patients was developed. By evaluating the tumor microenvironment, we observed that the immune and metabolic microenvironments of the two groups were substantially different. In addition, individuals in the low-risk group were more susceptible to axitinib and camptothecin, whereas lapatinib might be preferred for patients in the high-risk group. Conclusion Our study revealed the prognostic value of PRGs in PAAD and created a reliable model for predicting the prognosis of PAAD patients. Our findings will benefit the prognostication and treatment of PAAD patients.
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Affiliation(s)
- Kaifeng Su
- Medical Faculty of Ludwig-Maximilians-University of Munich, University Hospital of LMU Munich, Munich, Germany
| | - Yang Peng
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haochen Yu
- Medical Faculty of Ludwig-Maximilians-University of Munich, University Hospital of LMU Munich, Munich, Germany
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Chen S, Han B, Geng X, Li P, Lavin MF, Yeo AJ, Li C, Sun J, Peng C, Shao H, Du Z. Microcrystalline silica particles induce inflammatory response via pyroptosis in primary human respiratory epithelial cells. ENVIRONMENTAL TOXICOLOGY 2022; 37:385-400. [PMID: 34766707 DOI: 10.1002/tox.23405] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/28/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
The mechanism of the sterile inflammatory response in the respiratory tract induced by exposure to sterile particles has not been fully elucidated. The aim of our study is to explore the earlier events in initiating inflammatory response at molecular and cellular level in primary cultured human airway epithelial cells (AEC) exposed to silica particles in order to provide information for earlier diagnosis and prevention of silica particle-induced toxicity as well as possible information on the genesis of silicosis. We isolated primary AEC from three healthy adults and treated them with silica particles at different concentrations for 48 h. We found evidence for silica-induced inflammasome activation by the co-localization of Caspase-1 and NLRP3, as well as increased levels of IL-1β and IL-18. Lactate dehydrogenase and NucGreen analysis proved the occurrence of pyroptosis. High throughput mRNA sequencing showed that the inflammatory response and NF-κB signaling pathways were significantly enriched in gene ontology and Kyoto encyclopedia of genes and genomes analysis, and pyroptosis-related genes were up-regulated. The miR-455-3p and five lncRNAs (LOC105375913, NEAT1, LOC105375181, LOC100506098, and LOC105369370) were verified as key factors related to the mechanism by ceRNA network analysis. LOC105375913 was first discovered to be associated with inflammation in AEC. These data suggest that microcrystalline silica can induce significant inflammation and pyroptosis in human primary AEC through NLRP3 inflammasome pathway and NF-κB signaling pathway at both the gene and protein levels, and the possible mechanism could be miR-455-3p mediated ceRNA hypothesis. Our data provide a method for the studies of the respiratory toxicity of fine particulate matter and the pathogenesis of early silicosis. The miR-455-3p and five lncRNAs related ceRNA network might be the toxicity mechanism of microcrystalline silica particles to AEC.
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Affiliation(s)
- Shangya Chen
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Basic Research & International Cooperation, Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, China
| | - Bing Han
- Department of Head and Neck Surgery, Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiao Geng
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Peng Li
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Martin F Lavin
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- The University of Queensland Centre for Clinical Research (UQCCR), The University of Queensland, Brisbane, Australia
| | - Abrey J Yeo
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- The University of Queensland Centre for Clinical Research (UQCCR), The University of Queensland, Brisbane, Australia
| | - Chao Li
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jiayin Sun
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Cheng Peng
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Brisbane, Australia
| | - Hua Shao
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Zhongjun Du
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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Wei Y, Yang L, Pandeya A, Cui J, Zhang Y, Li Z. Pyroptosis-Induced Inflammation and Tissue Damage. J Mol Biol 2022; 434:167301. [PMID: 34653436 PMCID: PMC8844146 DOI: 10.1016/j.jmb.2021.167301] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/23/2021] [Accepted: 10/05/2021] [Indexed: 02/07/2023]
Abstract
Programmed cell deaths are pathways involving cells playing an active role in their own destruction. Depending on the signaling system of the process, programmed cell death can be divided into two categories, pro-inflammatory and non-inflammatory. Pyroptosis is a pro-inflammatory form of programmed cell death. Upon cell death, a plethora of cytokines are released and trigger a cascade of responses from the neighboring cells. The pyroptosis process is a double-edged sword, could be both beneficial and detrimental in various inflammatory disorders and disease conditions. A physiological outcome of these responses is tissue damage, and sometimes death of the host. In this review, we focus on the inflammatory response triggered by pyroptosis, and resulting tissue damage in selected organs.
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Affiliation(s)
- Yinan Wei
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA.
| | - Ling Yang
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Ankit Pandeya
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Jian Cui
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - Yan Zhang
- Saha Cardiovascular Research Center, College of Medicine, University of Kentucky, Lexington, KY, USA.,Department of Oncology, the First Affiliated Hospital of Soochow University, Suzhou,China
| | - Zhenyu Li
- Saha Cardiovascular Research Center, College of Medicine, University of Kentucky, Lexington, KY, USA.
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Mitzel H, Brown D, Thomas M, Curl B, Wild M, Kelsch A, Muskrat J, Hossain A, Ryan K, Babalola O, Burgard M, Mehedi M. Patient-Centered Discussion on End-of-Life Care for Patients with Advanced COPD. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:254. [PMID: 35208578 PMCID: PMC8878082 DOI: 10.3390/medicina58020254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/30/2022] [Accepted: 02/01/2022] [Indexed: 11/16/2022]
Abstract
Exacerbations of chronic obstructive pulmonary disease (COPD) may lead to a rapid decline in health and subsequent death, an unfortunate tyranny of having COPD-an irreversible health condition of 16 million individuals in the USA totaling 60 million in the world. While COPD is the third largest leading cause of death, causing 3.23 million deaths worldwide in 2019 (according to the WHO), most patients with COPD do not receive adequate treatment at the end stages of life. Although death is inevitable, the trajectory towards end-of-life is less predictable in severe COPD. Thus, clinician-patient discussion for end-of-life and palliative care could bring a meaningful life-prospective to patients with advanced COPD. Here, we summarized the current understanding and treatment of COPD. This review also highlights the importance of patient-centered discussion and summarizes current status of managing patients with advanced COPD.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Masfique Mehedi
- School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA; (H.M.); (D.B.); (M.T.); (B.C.); (M.W.); (A.K.); (J.M.); (A.H.); (K.R.); (O.B.); (M.B.)
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Okahashi N, Sumitomo T, Nakata M, Kawabata S. Secondary streptococcal infection following influenza. Microbiol Immunol 2022; 66:253-263. [PMID: 35088451 DOI: 10.1111/1348-0421.12965] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 12/01/2022]
Abstract
Secondary bacterial infection following influenza A virus (IAV) infection is a major cause of morbidity and mortality during influenza epidemics. Streptococcus pneumoniae has been identified as a predominant pathogen in secondary pneumonia cases that develop following influenza. Although IAV has been shown to enhance susceptibility to the secondary bacterial infection, the underlying mechanism of the viral-bacterial synergy leading to disease progression is complex and remains elusive. In this review, cooperative interactions of viruses and streptococci during co- or secondary infection with IAV are described. IAV infects the upper respiratory tract, therefore, streptococci that inhabit or infect the respiratory tract are of special interest. Since many excellent reviews on the co-infection of IAV and S. pneumoniae have already been published, this review is intended to describe the unique interactions between other streptococci and IAV. Both streptococcal and IAV infections modulate the host epithelial barrier of the respiratory tract in various ways. IAV infection directly disrupts epithelial barriers, though at the same time the virus modifies the properties of infected cells to enhance streptococcal adherence and invasion. Mitis group streptococci produce neuraminidases, which promote IAV infection in a unique manner. The studies reviewed here have revealed intriguing mechanisms underlying secondary streptococcal infection following influenza. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Nobuo Okahashi
- Center for Frontier Oral Science, Osaka University Graduate School of Dentistry, Suita-Osaka, Japan
| | - Tomoko Sumitomo
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita-Osaka, Japan
| | - Masanobu Nakata
- Department of Oral Microbiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shigetada Kawabata
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita-Osaka, Japan
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Gui R, Chen Q. Molecular Events Involved in Influenza A Virus-Induced Cell Death. Front Microbiol 2022; 12:797789. [PMID: 35069499 PMCID: PMC8777062 DOI: 10.3389/fmicb.2021.797789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/29/2021] [Indexed: 12/31/2022] Open
Abstract
Viral infection usually leads to cell death. Moderate cell death is a protective innate immune response. By contrast, excessive, uncontrolled cell death causes tissue destruction, cytokine storm, or even host death. Thus, the struggle between the host and virus determines whether the host survives. Influenza A virus (IAV) infection in humans can lead to unbridled hyper-inflammatory reactions and cause serious illnesses and even death. A full understanding of the molecular mechanisms and regulatory networks through which IAVs induce cell death could facilitate the development of more effective antiviral treatments. In this review, we discuss current progress in research on cell death induced by IAV infection and evaluate the role of cell death in IAV replication and disease prognosis.
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Affiliation(s)
- Rui Gui
- CAS Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, CAS Center for Influenza Research and Early Warning, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Quanjiao Chen
- CAS Key Laboratory of Special Pathogens and Biosafety, Center for Biosafety Mega-Science, CAS Center for Influenza Research and Early Warning, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
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40
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Innate immune sensing of influenza A viral RNA through IFI16 promotes pyroptotic cell death. iScience 2022; 25:103714. [PMID: 35072006 PMCID: PMC8762390 DOI: 10.1016/j.isci.2021.103714] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 10/04/2021] [Accepted: 12/29/2021] [Indexed: 11/22/2022] Open
Abstract
Programmed cell death pathways are triggered by various stresses or stimuli, including viral infections. The mechanism underlying the regulation of these pathways upon Influenza A virus (IAV) infection is not well characterized. We report that a cytosolic DNA sensor IFI16 is essential for the activation of programmed cell death pathways in IAV infected cells. We have identified that IFI16 functions as an RNA sensor for the influenza A virus by interacting with genomic RNA. The activation of IFI16 triggers the production of type I, III interferons, and also pro-inflammatory cytokines via the STING-TBK1 and Pro-caspase-1 signaling axis, thereby promoting cell death (apoptosis and pyroptosis in IAV infected cells). On the contrary, IFI16 knockdown cells showed reduced inflammatory responses and also prevented cell mortality during IAV infection. Collectively, these results demonstrate the pivotal role of IFI16-mediated IAV sensing and its essential role in activating programmed cell death pathways. DNA sensor IFI16 senses Influenza viral RNA IFI16 induce pyroptosis in Influenza A Virus (IAV) infected cells IFI16 interacts with IAV RNA and restricts viral replication IFI16 promotes overall antiviral state during IAV infection
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41
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Koh HS, Lee S, Lee HJ, Min JW, Iwatsubo T, Teunissen CE, Cho HJ, Ryu JH. Targeting MicroRNA-485-3p Blocks Alzheimer's Disease Progression. Int J Mol Sci 2021; 22:13136. [PMID: 34884940 PMCID: PMC8658496 DOI: 10.3390/ijms222313136] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/12/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is a form of dementia characterized by progressive memory decline and cognitive dysfunction. With only one FDA-approved therapy, effective treatment strategies for AD are urgently needed. In this study, we found that microRNA-485-3p (miR-485-3p) was overexpressed in the brain tissues, cerebrospinal fluid, and plasma of patients with AD, and its antisense oligonucleotide (ASO) reduced Aβ plaque accumulation, tau pathology development, neuroinflammation, and cognitive decline in a transgenic mouse model of AD. Mechanistically, miR-485-3p ASO enhanced Aβ clearance via CD36-mediated phagocytosis of Aβ in vitro and in vivo. Furthermore, miR-485-3p ASO administration reduced apoptosis, thereby effectively decreasing truncated tau levels. Moreover, miR-485-3p ASO treatment reduced secretion of proinflammatory cytokines, including IL-1β and TNF-α, and eventually relieved cognitive impairment. Collectively, our findings suggest that miR-485-3p is a useful biomarker of the inflammatory pathophysiology of AD and that miR-485-3p ASO represents a potential therapeutic candidate for managing AD pathology and cognitive decline.
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Affiliation(s)
- Han Seok Koh
- BIORCHESTRA Co., Ltd., 17, Techno 4-ro, Yuseong-gu, Daejeon 34013, Korea; (H.S.K.); (H.J.L.); (J.-W.M.)
| | - SangJoon Lee
- Department of Infection Biology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8577, Japan;
| | - Hyo Jin Lee
- BIORCHESTRA Co., Ltd., 17, Techno 4-ro, Yuseong-gu, Daejeon 34013, Korea; (H.S.K.); (H.J.L.); (J.-W.M.)
| | - Jae-Woong Min
- BIORCHESTRA Co., Ltd., 17, Techno 4-ro, Yuseong-gu, Daejeon 34013, Korea; (H.S.K.); (H.J.L.); (J.-W.M.)
| | - Takeshi Iwatsubo
- Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan;
| | - Charlotte E. Teunissen
- Neurochemistry Laboratory and Biobank, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam University Medical Centers, 1081 HV Amsterdam, The Netherlands;
| | - Hyun-Jeong Cho
- Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon 35365, Korea
| | - Jin-Hyeob Ryu
- BIORCHESTRA Co., Ltd., 17, Techno 4-ro, Yuseong-gu, Daejeon 34013, Korea; (H.S.K.); (H.J.L.); (J.-W.M.)
- BIORCHESTRA US Inc., 245 Main St., Cambridge, MA 02142, USA
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42
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D’Anna SE, Maniscalco M, Cappello F, Carone M, Motta A, Balbi B, Ricciardolo FLM, Caramori G, Di Stefano A. Bacterial and viral infections and related inflammatory responses in chronic obstructive pulmonary disease. Ann Med 2021; 53:135-150. [PMID: 32997525 PMCID: PMC7877965 DOI: 10.1080/07853890.2020.1831050] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/25/2020] [Indexed: 12/24/2022] Open
Abstract
In chronic obstructive pulmonary disease (COPD) patients, bacterial and viral infections play a relevant role in worsening lung function and, therefore, favour disease progression. The inflammatory response to lung infections may become a specific indication of the bacterial and viral infections. We here review data on the bacterial-viral infections and related airways and lung parenchyma inflammation in stable and exacerbated COPD, focussing our attention on the prevalent molecular pathways in these different clinical conditions. The roles of macrophages, autophagy and NETosis are also briefly discussed in the context of lung infections in COPD. Controlling their combined response may restore a balanced lung homeostasis, reducing the risk of lung function decline. KEY MESSAGE Bacteria and viruses can influence the responses of the innate and adaptive immune system in the lung of chronic obstructive pulmonary disease (COPD) patients. The relationship between viruses and bacterial colonization, and the consequences of the imbalance of these components can modulate the inflammatory state of the COPD lung. The complex actions involving immune trigger cells, which activate innate and cell-mediated inflammatory responses, could be responsible for the clinical consequences of irreversible airflow limitation, lung remodelling and emphysema in COPD patients.
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Affiliation(s)
| | - Mauro Maniscalco
- Divisione di Pneumologia, Istituti Clinici Scientifici Maugeri, IRCCS, Telese, Italy
| | - Francesco Cappello
- Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata (BIND), Istituto di Anatomia Umana e Istologia Università degli Studi di Palermo, Palermo, Italy
- Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy
| | - Mauro Carone
- UOC Pulmonology and Pulmonary Rehabilitation, Istituti Clinici Scientifici Maugeri, IRCCS di Bari, Bari, Italy
| | - Andrea Motta
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Bruno Balbi
- Divisione di Pneumologia e Laboratorio di Citoimmunopatologia dell’Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy
| | - Fabio L. M. Ricciardolo
- Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, AOU San Luigi Gonzaga, Torino, Italy
| | - Gaetano Caramori
- Pneumologia, Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini morfologiche e funzionali (BIOMORF), Università degli studi di Messina, Italy
| | - Antonino Di Stefano
- Divisione di Pneumologia e Laboratorio di Citoimmunopatologia dell’Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy
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43
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Hulme KD, Noye EC, Short KR, Labzin LI. Dysregulated Inflammation During Obesity: Driving Disease Severity in Influenza Virus and SARS-CoV-2 Infections. Front Immunol 2021; 12:770066. [PMID: 34777390 PMCID: PMC8581451 DOI: 10.3389/fimmu.2021.770066] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022] Open
Abstract
Acute inflammation is a critical host defense response during viral infection. When dysregulated, inflammation drives immunopathology and tissue damage. Excessive, damaging inflammation is a hallmark of both pandemic influenza A virus (IAV) infections and Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2) infections. Chronic, low-grade inflammation is also a feature of obesity. In recent years, obesity has been recognized as a growing pandemic with significant mortality and associated costs. Obesity is also an independent risk factor for increased disease severity and death during both IAV and SARS-CoV-2 infection. This review focuses on the effect of obesity on the inflammatory response in the context of viral respiratory infections and how this leads to increased viral pathology. Here, we will review the fundamentals of inflammation, how it is initiated in IAV and SARS-CoV-2 infection and its link to disease severity. We will examine how obesity drives chronic inflammation and trained immunity and how these impact the immune response to IAV and SARS-CoV-2. Finally, we review both medical and non-medical interventions for obesity, how they impact on the inflammatory response and how they could be used to prevent disease severity in obese patients. As projections of global obesity numbers show no sign of slowing down, future pandemic preparedness will require us to consider the metabolic health of the population. Furthermore, if weight-loss alone is insufficient to reduce the risk of increased respiratory virus-related mortality, closer attention must be paid to a patient’s history of health, and new therapeutic options identified.
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Affiliation(s)
- Katina D Hulme
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Ellesandra C Noye
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Kirsty R Short
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Larisa I Labzin
- Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
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44
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Chen J, Zhou Y, Zhu E, Yang P, Li M, Zhang S, Yue J, Wen M, Wang K, Cheng Z. Mycoplasma ovipneumoniae induces caspase-8-dependent extrinsic apoptosis and p53- and ROS-dependent intrinsic apoptosis in murine alveolar macrophages. Virulence 2021; 12:2703-2720. [PMID: 34678131 PMCID: PMC8923071 DOI: 10.1080/21505594.2021.1984714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Mycoplasma ovipneumoniae (MO) is a principle causative agent of chronic respiratory disease in ruminants, including sheep, goats, and deer, posing a great threat to the ruminant industry worldwide. However, the pathogenesis of MO infection still remains not well understood and needs further clarification. Here we report a time-dependent apoptosis in cultured murine alveolar macrophage (MH-S) cell lines in response to MO infection in vitro. Mechanistically, MO infection activated apoptosis in MH-S cells through caspase-8-dependent extrinsic pathway and through tumor protein 53 (p53)- and reactive oxygen species (ROS)-dependent intrinsic mitochondrial pathways. Moreover, MO infection promoted both transcription and translation of proinflammatory cytokine genes including interleukin-1β (IL-1β), IL-18, and tumor necrosis factor-α (TNF-α), in a caspase-8-, p53-, and ROS-dependent manner, implying a potential link between MO-induced inflammation and apoptotic cell death. Collectively, our results suggest that MO infection induces the activation of extrinsic and intrinsic apoptotic pathways in cultured MH-S cells, which is related to upregulated expression of proinflammatory cytokines. Our findings will contribute to the elucidation of pathogenesis in MO infection and provide valuable reference for the development of new strategies for controlling MO infection.
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Affiliation(s)
- Jing Chen
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Yi Zhou
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Erpeng Zhu
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Peng Yang
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Mei Li
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Shuangxiang Zhang
- The Laboratory of Veterinary Medicine, Animal Disease Prevention and Control Center of Guizhou Province, Guiyang, China
| | - Jun Yue
- The Laboratory of Veterinary Medicine, Animal Disease Prevention and Control Center of Guizhou Province, Guiyang, China
| | - Ming Wen
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Kaigong Wang
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
| | - Zhentao Cheng
- Department of Veterinary Medicine, College of Animal Science, Guizhou University, Guiyang, China.,Key Laboratory of Animal Diseases and Veterinary Public Health of Guizhou Province, College of Animal Science, Guizhou University, Guiyang, China
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45
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Abstract
The innate immune system plays key roles in controlling Alzheimer's disease (AD), while secreting cytokines to eliminate pathogens and regulating brain homeostasis. Recent research in the field of AD has shown that the innate immune-sensing ability of pattern recognition receptors on brain-resident macrophages, known as microglia, initiates neuroinflammation, Aβ accumulation, neuronal loss, and memory decline in patients with AD. Advancements in understanding the role of innate immunity in AD have laid a strong foundation to elucidate AD pathology and devise therapeutic strategies for AD in the future. In this review, we highlight the present understanding of innate immune responses, inflammasome activation, inflammatory cell death pathways, and cytokine secretion in AD. We also discuss how the AD pathology influences these biological processes.
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Affiliation(s)
- SangJoon Lee
- Department of Infection Biology, Faculty of Medicine, 38515University of Tsukuba, Tsukuba, Japan
| | - Hyun-Jeong Cho
- Department of Biomedical Laboratory Science, College of Medical Science, 34966Konyang University, Daejeon, South Korea
| | - Jin-Hyeob Ryu
- BIORCHESTRA Co. Ltd., 17, Techno 4-ro, Yuseong-gu, Daejeon, Republic of Korea.,BIORCHESTRA Co. Ltd., 245 Main St, Cambridge, MA 02142, USA
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46
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Aponte-Serrano JO, Weaver JJA, Sego TJ, Glazier JA, Shoemaker JE. Multicellular spatial model of RNA virus replication and interferon responses reveals factors controlling plaque growth dynamics. PLoS Comput Biol 2021; 17:e1008874. [PMID: 34695114 PMCID: PMC8608315 DOI: 10.1371/journal.pcbi.1008874] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 11/22/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023] Open
Abstract
Respiratory viruses present major public health challenges, as evidenced by the 1918 Spanish Flu, the 1957 H2N2, 1968 H3N2, and 2009 H1N1 influenza pandemics, and the ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. Severe RNA virus respiratory infections often correlate with high viral load and excessive inflammation. Understanding the dynamics of the innate immune response and its manifestations at the cell and tissue levels is vital to understanding the mechanisms of immunopathology and to developing strain-independent treatments. Here, we present a novel spatialized multicellular computational model of RNA virus infection and the type-I interferon-mediated antiviral response that it induces within lung epithelial cells. The model is built using the CompuCell3D multicellular simulation environment and is parameterized using data from influenza virus-infected cell cultures. Consistent with experimental observations, it exhibits either linear radial growth of viral plaques or arrested plaque growth depending on the local concentration of type I interferons. The model suggests that modifying the activity of signaling molecules in the JAK/STAT pathway or altering the ratio of the diffusion lengths of interferon and virus in the cell culture could lead to plaque growth arrest. The dependence of plaque growth arrest on diffusion lengths highlights the importance of developing validated spatial models of cytokine signaling and the need for in vitro measurement of these diffusion coefficients. Sensitivity analyses under conditions leading to continuous or arrested plaque growth found that plaque growth is more sensitive to variations of most parameters and more likely to have identifiable model parameters when conditions lead to plaque arrest. This result suggests that cytokine assay measurements may be most informative under conditions leading to arrested plaque growth. The model is easy to extend to include SARS-CoV-2-specific mechanisms or to use as a component in models linking epithelial cell signaling to systemic immune models.
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Affiliation(s)
- Josua O. Aponte-Serrano
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
- Biocomplexity Institute, Indiana University, Bloomington, Indiana, United States of America
| | - Jordan J. A. Weaver
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - T. J. Sego
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
- Biocomplexity Institute, Indiana University, Bloomington, Indiana, United States of America
| | - James A. Glazier
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
- Biocomplexity Institute, Indiana University, Bloomington, Indiana, United States of America
| | - Jason E. Shoemaker
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
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47
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Lv LX, Wen M, Lv F, Ji TB, Fu HL, Man N. Knockdown of long noncoding RNA growth arrest-specific transcript 5 regulates forkhead box O3 to inhibit lipopolysaccharide-induced human bronchial epithelial cell pyroptosis. Kaohsiung J Med Sci 2021; 38:87-96. [PMID: 34529353 DOI: 10.1002/kjm2.12452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 07/14/2021] [Accepted: 08/22/2021] [Indexed: 12/17/2022] Open
Abstract
Pyroptosis is a novel proinflammatory programmed cell death process. This study was designed to investigate the functional mechanisms of long noncoding RNA growth arrest-specific transcript 5 (lncRNA GAS5) on lipopolysaccharide (LPS)-induced human bronchial epithelial cell (HBEC) pyroptosis. LPS was used to induce pyroptosis in HBECs, followed by the detection of the expression of GAS5, forkhead box O3 (FOXO3), and nuclear factor E2-related factor 2/heme oxygenase 1 (Nrf2/HO-1) signaling pathway-related factors. Cell viability was evaluated using CCK-8 assay, lactate dehydrogenase (LDH) release was assessed by LDH assay kit and caspase-1 activity by flow cytometry. Furthermore, expression of NOD-like receptor family pyrin domain containing 3 and pyroptosis-related proteins was evaluated using Western blot analysis, while enzyme-linked immunosorbent assay was used to determine the levels of inflammatory factors. The interaction between GAS5 and FOXO3 was confirmed using bioinformatic prediction, RNA immunoprecipitation assay, RNA pull-down, and dual-luciferase reporter gene assay. Treatment of HBECs with LPS upregulated the expression of GAS5 and FOXO3, resulting in the inactivation of the Nrf2/HO-1 signaling pathway. On the other hand, inhibition of both GAS5 and FOXO3 promoted cell viability, reduced LDH release, pyroptosis, and inflammatory response in LPS-induced HBECs. Furthermore, FOXO3 could interact with GAS5, while FOXO3 overexpression reversed the inhibitory effect of GAS5 knockdown on cell pyroptosis. Thus, mechanistically, inhibition of FOXO3 activates the Nrf2/HO-1 pathway to suppress LPS-induced pyroptosis in HBECs. This study revealed that GAS5 knockdown attenuates FOXO3 expression thereby activating the Nrf2/HO-1 pathway to inhibit LPS-induced pyroptosis in HBECs. These findings may contribute to identifying novel targets that inhibit pyroptosis in HBECs.
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Affiliation(s)
- Ling-Xia Lv
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Mei Wen
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Fei Lv
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Tai-Bing Ji
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Hua-Li Fu
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
| | - Ning Man
- Respiratory and Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, Hubei, China
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48
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AIM2 forms a complex with pyrin and ZBP1 to drive PANoptosis and host defence. Nature 2021; 597:415-419. [PMID: 34471287 PMCID: PMC8603942 DOI: 10.1038/s41586-021-03875-8] [Citation(s) in RCA: 262] [Impact Index Per Article: 87.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 08/04/2021] [Indexed: 02/08/2023]
Abstract
Inflammasomes are important sentinels of innate immune defense, sensing pathogens and inducing cell death in infected cells1. There are several inflammasome sensors that each detect and respond to specific pathogen- and damage-associated molecular patterns (PAMPs and DAMPs)1. In contrast to this one PAMP/DAMP to one sensor specificity, during infection, live pathogens can induce the release of multiple PAMPs and DAMPs, which could contemporaneously engage multiple inflammasome sensors2–5. Here we discovered that AIM2 regulated the innate immune sensors Pyrin and ZBP1 to drive inflammatory signaling and inflammatory cell death, PANoptosis, and provide host protection during infections with herpes simplex virus 1 (HSV1) and Francisella novicida. We also observed that AIM2, Pyrin and ZBP1 were members of a large multi-protein complex along with ASC, caspase-1, caspase-8, RIPK3, RIPK1 and FADD that drove inflammatory cell death. Collectively, our findings define a previously unknown regulatory connection and molecular interaction among AIM2, Pyrin and ZBP1 that drives assembly of an AIM2-mediated multi-protein complex that involves multiple inflammasome sensors and cell death regulators. These results represent a new paradigm in understanding the functions of these molecules in innate immunity and inflammatory cell death, suggesting new therapeutic targets for AIM2-, ZBP1- and Pyrin-mediated diseases.
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49
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Lee S, Ryu JH. Influenza Viruses: Innate Immunity and mRNA Vaccines. Front Immunol 2021; 12:710647. [PMID: 34531860 PMCID: PMC8438292 DOI: 10.3389/fimmu.2021.710647] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/13/2021] [Indexed: 12/13/2022] Open
Abstract
The innate immune system represents the first line of defense against influenza viruses, which cause severe inflammation of the respiratory tract and are responsible for more than 650,000 deaths annually worldwide. mRNA vaccines are promising alternatives to traditional vaccine approaches due to their safe dosing, low-cost manufacturing, rapid development capability, and high efficacy. In this review, we provide our current understanding of the innate immune response that uses pattern recognition receptors to detect and respond to mRNA vaccination. We also provide an overview of mRNA vaccines, and discuss the future directions and challenges in advancing this promising therapeutic approach.
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Affiliation(s)
- SangJoon Lee
- Department of Infection Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Jin-Hyeob Ryu
- BIORCHESTRA Co., Ltd, Daejeon, South Korea
- BIORCHESTRA Co., Ltd, Cambridge, MA, United States
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50
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Lee S, Ishitsuka A, Kuroki T, Lin YH, Shibuya A, Hongu T, Funakoshi Y, Kanaho Y, Nagata K, Kawaguchi A. Arf6 exacerbates allergic asthma through cell-to-cell transmission of ASC inflammasomes. JCI Insight 2021; 6:e139190. [PMID: 34423792 PMCID: PMC8410019 DOI: 10.1172/jci.insight.139190] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/07/2021] [Indexed: 12/11/2022] Open
Abstract
Asthma is a chronic inflammatory disease of the airways associated with excess production of Th2 cytokines and lung eosinophil accumulation. This inflammatory response persists in spite of steroid administration that blocks autocrine/paracrine loops of inflammatory cytokines, and the detailed mechanisms underlying asthma exacerbation remain unclear. Here, we show that asthma exacerbation is triggered by airway macrophages through a prion-like cell-to-cell transmission of extracellular particulates, including ASC protein, that assemble inflammasomes and mediate IL-1β production. OVA-induced allergic asthma and associated IL-1β production were alleviated in mice with small GTPase Arf6-deficient macrophages. The extracellular ASC specks were slightly engulfed by Arf6–/– macrophages, and the IL-1β production was reduced in Arf6–/– macrophages compared with that in WT macrophages. Furthermore, pharmacological inhibition of the Arf6 guanine nucleotide exchange factor suppressed asthma-like allergic inflammation in OVA-challenged WT mice. Collectively, the Arf6-dependent intercellular transmission of extracellular ASC specks contributes to the amplification of allergic inflammation and subsequent asthma exacerbation.
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Affiliation(s)
- SangJoon Lee
- Department of Infection Biology, Faculty of Medicine
| | - Akari Ishitsuka
- PhD Program in Human Biology, School of Integrative and Global Majors
| | | | | | | | - Tsunaki Hongu
- Department of Physiological Chemistry, Faculty of Medicine
| | - Yuji Funakoshi
- Department of Physiological Chemistry, Faculty of Medicine
| | | | | | - Atsushi Kawaguchi
- Department of Infection Biology, Faculty of Medicine.,PhD Program in Human Biology, School of Integrative and Global Majors.,Graduate School of Comprehensive Human Sciences.,Transborder Medical Research Center, and.,Microbiology Research Center for Sustainability, University of Tsukuba, Tsukuba, Japan
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