1
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Hom LM, Sun S, Campbell J, Liu P, Culbert S, Murphy IM, Schafer ZT. A role for fibroblast-derived SASP factors in the activation of pyroptotic cell death in mammary epithelial cells. J Biol Chem 2023; 299:104922. [PMID: 37321449 PMCID: PMC10404679 DOI: 10.1016/j.jbc.2023.104922] [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: 02/21/2023] [Revised: 05/17/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023] Open
Abstract
In normal tissue homeostasis, bidirectional communication between different cell types can shape numerous biological outcomes. Many studies have documented instances of reciprocal communication between fibroblasts and cancer cells that functionally change cancer cell behavior. However, less is known about how these heterotypic interactions shape epithelial cell function in the absence of oncogenic transformation. Furthermore, fibroblasts are prone to undergo senescence, which is typified by an irreversible cell cycle arrest. Senescent fibroblasts are also known to secrete various cytokines into the extracellular space; a phenomenon that is termed the senescence-associated secretory phenotype (SASP). While the role of fibroblast-derived SASP factors on cancer cells has been well studied, the impact of these factors on normal epithelial cells remains poorly understood. We discovered that treatment of normal mammary epithelial cells with conditioned media from senescent fibroblasts (SASP CM) results in a caspase-dependent cell death. This capacity of SASP CM to cause cell death is maintained across multiple senescence-inducing stimuli. However, the activation of oncogenic signaling in mammary epithelial cells mitigates the ability of SASP CM to induce cell death. Despite the reliance of this cell death on caspase activation, we discovered that SASP CM does not cause cell death by the extrinsic or intrinsic apoptotic pathway. Instead, these cells die by an NLRP3, caspase-1, and gasdermin D-dependent induction of pyroptosis. Taken together, our findings reveal that senescent fibroblasts can cause pyroptosis in neighboring mammary epithelial cells, which has implications for therapeutic strategies that perturb the behavior of senescent cells.
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Affiliation(s)
- Lisa M Hom
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Seunghoon Sun
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Jamie Campbell
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Pinyan Liu
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Shannon Culbert
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Ireland M Murphy
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Zachary T Schafer
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA.
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2
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Ngwaga T, Chauhan D, Salberg AG, Shames SR. Effector-mediated subversion of proteasome activator (PA)28αβ enhances host defense against Legionella pneumophila under inflammatory and oxidative stress conditions. PLoS Pathog 2023; 19:e1011473. [PMID: 37347796 PMCID: PMC10321654 DOI: 10.1371/journal.ppat.1011473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/05/2023] [Accepted: 06/09/2023] [Indexed: 06/24/2023] Open
Abstract
Legionella pneumophila is a natural pathogen of amoebae that causes Legionnaires' Disease in immunocompromised individuals via replication within macrophages. L. pneumophila virulence and intracellular replication hinges on hundreds of Dot/Icm-translocated effector proteins, which are essential for biogenesis of the replication-permissive Legionella-containing vacuole (LCV). However, effector activity can also enhance mammalian host defense via effector-triggered immunity. The L. pneumophila effector LegC4 is important for virulence in amoebae but enhances host defense against L. pneumophila in the mouse lung and, uniquely, within macrophages activated with either tumor necrosis factor (TNF) or interferon (IFN)-γ. The mechanism by which LegC4 potentiates cytokine-mediated host defense in macrophages is unknown. Here, we found that LegC4 enhances cytokine-mediated phagolysosomal fusion with Legionella-containing vacuole (LCV) and binds host proteasome activator (PA)28α, which forms a heterooligomer with PA28β to facilitate ubiquitin-independent proteasomal degradation of oxidant-damaged (carbonylated) proteins. We found that oxidative stress was sustained in the presence of LegC4 and that the LegC4 restriction phenotype was relieved in PA28αβ-deficient macrophages and in the lungs of mice in vivo. Our data also show that oxidative stress is sufficient for LegC4-mediated restriction in macrophages producing PA28αβ. PA28αβ has been traditionally associated with antigen presentation; however, our data support a novel mechanism whereby effector-mediated subversion of PA28αβ enhances cell-autonomous host defense against L. pneumophila under inflammatory and oxidative stress conditions. This work provides a solid foundation to evaluate induced proteasome regulators as mediators of innate immunity.
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Affiliation(s)
- Tshegofatso Ngwaga
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Deepika Chauhan
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Abigail G. Salberg
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
| | - Stephanie R. Shames
- Division of Biology, Kansas State University, Manhattan, Kansas, United States of America
- Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, Michigan, United States of America
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3
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Pei X, Liu D, Li J, Li L, Ding X, Zhang W, Li Z, Xu G, Li C, Li D. TFEB coordinates autophagy and pyroptosis as hepatotoxicity responses to ZnO nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 865:161242. [PMID: 36587696 DOI: 10.1016/j.scitotenv.2022.161242] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/12/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have drawn serious concerns about their biotoxicity due to their extensive applications in biological medicine, clinical therapeutic, daily chemical production, food and agricultural additives. In our present study, we clarified hepatotoxic mechanism of ZnO NPs through investigating the crosstalk between autophagy and pyroptosis, a remaining enigma in hepatocyte stimulated by ZnO NPs. Based on the effects of autophagy intervention by Rapamycin (Rap) and 3-Methyladenine (3-MA), and the observation of pyroptosis morphology and related indexes, the autophagy and pyroptosis simultaneously initiated by ZnO NPs were interrelated and the autophagy characterized by autophagosome production and increased expression of autophagy proteins was identified as a protective response of ZnO NPs against pyroptosis. According to the analysis of protein expression and fluorescence localization, the NLRP3 inflammasome assemble and the classical Caspase-1/GSDMD-dependent pyroptosis induced by ZnO NPs was modulated by autophagy. In this process, the adjustment of TFEB expression and nuclear translocation by gene knockout and gene overexpression, further altered the tendency of ZnO NPs-induced pyroptosis via the regulation of autophagy and lysosomal biogenesis. The knockout of TFEB gene exacerbated the pyroptosis via autophagy elimination and lysosome inhibition. While the alleviation of NLRP3 generation and pyroptosis activation was observed after treatment of TFEB gene overexpression. Additionally, the siRNA interference confirmed that TRAF-6 was involved in the TFEB-mediated global regulation of autophagy-lysosome-pyroptosis in response to ZnO NPs. Accordingly, pyroptosis induced by ZnO NPs in hepatocyte could be significantly avoided by TFEB-regulated autophagy and lysosome, further providing new insights for the risk assessment and therapeutic strategy.
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Affiliation(s)
- Xingyao Pei
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China; Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China
| | - Dingkuo Liu
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China; Tianjin Key Laboratory of Biological Feed Additive Enterprise, S&E Burgeoning Biotechnology (Tianjin) Co., Ltd, Tianjin 300383, China
| | - Jianjun Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Liuan Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Xiangbin Ding
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Wenjuan Zhang
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Zibin Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Gang Xu
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Cun Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China
| | - Daowen Li
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Jinjing Road No.22, Xiqing District, Tianjin 300392, China; Tianjin Key Laboratory of Biological Feed Additive Enterprise, S&E Burgeoning Biotechnology (Tianjin) Co., Ltd, Tianjin 300383, China; State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University, Haihe Education Park, Tongyan Road No.38, Tianjin 300353, China.
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4
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García-Rodríguez FJ, Buchrieser C, Escoll P. Legionella and mitochondria, an intriguing relationship. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023; 374:37-81. [PMID: 36858656 DOI: 10.1016/bs.ircmb.2022.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Legionella pneumophila is the causative agent of Legionnaires' disease, a severe pneumonia. L. pneumophila injects via a type-IV-secretion-system (T4SS) more than 300 bacterial proteins into macrophages, its main host cell in humans. Certain of these bacterial effectors target organelles in the infected cell and hijack multiple processes to facilitate all steps of the intracellular life cycle of this pathogen. In this review, we discuss the interplay between L. pneumophila, an intracellular bacterium fully armed with virulence tools, and mitochondria, the extraordinary eukaryotic organelles playing prominent roles in cellular bioenergetics, cell-autonomous immunity and cell death. We present and discuss key findings concerning the multiple interactions of L. pneumophila with mitochondria during infection and the mechanisms employed by T4SS effectors that target mitochondrial functions to subvert infected cells.
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Affiliation(s)
| | - Carmen Buchrieser
- Institut Pasteur, Université Paris Cité, Biologie des Bactéries Intracellulaires and CNRS UMR 6047, Paris, France.
| | - Pedro Escoll
- Institut Pasteur, Université Paris Cité, Biologie des Bactéries Intracellulaires and CNRS UMR 6047, Paris, France.
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5
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Hom LM, Sun S, Campbell J, Liu P, Culbert S, Murphy IM, Schafer ZT. A role for fibroblast-derived SASP factors in the activation of pyroptotic cell death in mammary epithelial cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.21.529458. [PMID: 36865231 PMCID: PMC9980130 DOI: 10.1101/2023.02.21.529458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
In normal tissue homeostasis, bidirectional communication between different cell types can shape numerous biological outcomes. Many studies have documented instances of reciprocal communication between fibroblasts and cancer cells that functionally change cancer cell behavior. However, less is known about how these heterotypic interactions shape epithelial cell function in the absence of oncogenic transformation. Furthermore, fibroblasts are prone to undergo senescence, which is typified by an irreversible cell cycle arrest. Senescent fibroblasts are also known to secrete various cytokines into the extracellular space; a phenomenon that is termed the senescence-associated secretory phenotype (SASP). While the role of fibroblast derived SASP factors on cancer cells has been well studied, the impact of these factors on normal epithelial cells remains poorly understood. We discovered that treatment of normal mammary epithelial cells with conditioned media (CM) from senescent fibroblasts (SASP CM) results in a caspase-dependent cell death. This capacity of SASP CM to cause cell death is maintained across multiple senescence-inducing stimuli. However, the activation of oncogenic signaling in mammary epithelial cells mitigates the ability of SASP CM to induce cell death. Despite the reliance of this cell death on caspase activation, we discovered that SASP CM does not cause cell death by the extrinsic or intrinsic apoptotic pathway. Instead, these cells die by an NLRP3, caspase-1, and gasdermin D (GSDMD)-dependent induction of pyroptosis. Taken together, our findings reveal that senescent fibroblasts can cause pyroptosis in neighboring mammary epithelial cells, which has implications for therapeutic strategies that perturb the behavior of senescent cells.
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6
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Cui X, Chen F, Zhao J, Li D, Hu M, Chen X, Zhang Y, Han L. Involvement of JNK signaling in Aspergillus fumigatus-induced inflammatory factors release in bronchial epithelial cells. Sci Rep 2023; 13:1293. [PMID: 36690696 PMCID: PMC9871034 DOI: 10.1038/s41598-023-28567-3] [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: 08/13/2022] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
Aspergillus fumigatus (A. fumigatus) is an important fungal pathogen and its conidia can be inhaled and interact with airway epithelial cells; however, the release of inflammatory factors from bronchial epithelial cells upon A. fumigatus infection and its regulation remained unclear. Here it was demonstrated that the release of IL-27, MCP-1 and TNF-α from BEAS-2B cells were upregulated upon stimulation by conidia, while mitogen-activated protein kinase signaling pathway was activated. Further, the inhibition of JNK, but not p38 and ERK, could inhibit inflammatory factors release and the LC3II formation in BEAS-2B cells induced by A. fumigatus conidia. In addition, an inhibitor of autophagy, bafilomycin A1 was able to significantly down-regulate the release of inflammatory factors in BEAS-2B cells upon A. fumigatus conidia, while rapamycin could reverse the effect of JNK inhibitor on IL-27 and TNF-α release. Taken together, these data demonstrated that JNK signal might play an important role in inflammatory factor release regulated by autophagy in bronchial epithelial cells against A. fumigatus infection.
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Affiliation(s)
- Xiao Cui
- Department of Respiratory and Critical Care Medicine, Beijing Youan Hospital, Capital Medical University, Beijing, 100069, China
| | - Fangyan Chen
- Department for Disinfection and Infection Control, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Jingya Zhao
- Department for Disinfection and Infection Control, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Dingchen Li
- Department for Disinfection and Infection Control, Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Mandong Hu
- National Center of Biomedical Analysis, 27 Taiping Lu, Beijing, 100850, China
| | - Xue Chen
- Department of Respiratory and Critical Care Medicine, Beijing Youan Hospital, Capital Medical University, Beijing, 100069, China
| | - Yulin Zhang
- Department of Respiratory and Critical Care Medicine, Beijing Youan Hospital, Capital Medical University, Beijing, 100069, China.
| | - Li Han
- Department for Disinfection and Infection Control, Chinese PLA Center for Disease Control and Prevention, Beijing, China.
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7
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Dong JY, Yin HL, Hao H, Liu Y. Research Progress on Autophagy Regulation by Active Ingredients of Traditional Chinese Medicine in the Treatment of Acute Lung Injury. J Inflamm Res 2023; 16:1671-1691. [PMID: 37092134 PMCID: PMC10120836 DOI: 10.2147/jir.s398203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/11/2023] [Indexed: 04/25/2023] Open
Abstract
Autophagy is a highly conserved process that maintains cell stability in eukaryotes, participates in the turnover of intracellular substances to maintain cell function, helps to resist pathogen invasion, and improves cell tolerance to environmental changes. Autophagy has been observed in many diseases, and the symptoms of these diseases are significantly improved by regulating autophagy. Autophagy is also involved in the development of lung diseases. Studies have shown that autophagy may play a beneficial or harmful role in acute lung injury (ALI), and ALI has been treated with traditional Chinese medicine designed to promote or inhibit autophagy. In this paper, the molecular mechanism and common pathways regulating autophagy and the relationship between autophagy and ALI are introduced, and the active ingredients of traditional Chinese medicine that improve ALI symptoms by regulating autophagy are summarized.
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Affiliation(s)
- Jin-yan Dong
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Hong-Lin Yin
- Faculty of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Hao Hao
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
- Correspondence: Hao Hao; Yang Liu, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China, Tel +86-13583119291; +86-13864018185, Email ;
| | - Yang Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
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8
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Yang JL, Li D, Zhan XY. Concept about the Virulence Factor of Legionella. Microorganisms 2022; 11:microorganisms11010074. [PMID: 36677366 PMCID: PMC9867486 DOI: 10.3390/microorganisms11010074] [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: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Pathogenic species of Legionella can infect human alveolar macrophages through Legionella-containing aerosols to cause a disease called Legionellosis, which has two forms: a flu-like Pontiac fever and severe pneumonia named Legionnaires' disease (LD). Legionella is an opportunistic pathogen that frequently presents in aquatic environments as a biofilm or protozoa parasite. Long-term interaction and extensive co-evolution with various genera of amoebae render Legionellae pathogenic to infect humans and also generate virulence differentiation and heterogeneity. Conventionally, the proteins involved in initiating replication processes and human macrophage infections have been regarded as virulence factors and linked to pathogenicity. However, because some of the virulence factors are associated with the infection of protozoa and macrophages, it would be more accurate to classify them as survival factors rather than virulence factors. Given that the molecular basis of virulence variations among non-pathogenic, pathogenic, and highly pathogenic Legionella has not yet been elaborated from the perspective of virulence factors, a comprehensive explanation of how Legionella infects its natural hosts, protozoans, and accidental hosts, humans is essential to show a novel concept regarding the virulence factor of Legionella. In this review, we overviewed the pathogenic development of Legionella from protozoa, the function of conventional virulence factors in the infections of protozoa and macrophages, the host's innate immune system, and factors involved in regulating the host immune response, before discussing a probably new definition for the virulence factors of Legionella.
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9
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Balance Cell Apoptosis and Pyroptosis of Caspase-3-Activating Chemotherapy for Better Antitumor Therapy. Cancers (Basel) 2022; 15:cancers15010026. [PMID: 36612023 PMCID: PMC9817729 DOI: 10.3390/cancers15010026] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/16/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Chemotherapy is a standard treatment modality in clinic that exerts an antitumor effect via the activation of the caspase-3 pathway, inducing cell death. While a number of chemotherapeutic drugs have been developed to combat various types of tumors, severe side effects have been their common limitation, due to the nonspecific drug biodistribution, bringing significant pain to cancer patients. Recently, scientists found that, besides apoptosis, chemotherapy could also cause cell pyroptosis, both of which have great influence on the therapeutic index. For example, cell apoptosis is, generally, regarded as the main mechanism of killing tumor cells, while cell pyroptosis in tumors promotes treatment efficacy, but in normal tissue results in toxicity. Therefore, significant research efforts have been paid to exploring the rational modulation mode of cell death induced by chemotherapy. This critical review aims to summarize recent progress in the field, focusing on how to balance cell apoptosis and pyroptosis for better tumor chemotherapy. We first reviewed the mechanisms of chemotherapy-induced cell apoptosis and pyroptosis, in which the activated caspase-3 is the key signaling molecule for regulating both types of cell deaths. Then, we systematically discussed the rationale and methods of switching apoptosis to pyroptosis for enhanced antitumor efficacy, as well as the blockage of pyroptosis to decrease side effects. To balance cell pyroptosis in tumor and normal tissues, the level of GSDME expression and tumor-targeting drug delivery are two important factors. Finally, we proposed potential future research directions, which may provide guidance for researchers in the field.
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10
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Pant A, Yao X, Lavedrine A, Viret C, Dockterman J, Chauhan S, Chong-Shan Shi, Manjithaya R, Cadwell K, Kufer TA, Kehrl JH, Coers J, Sibley LD, Faure M, Taylor GA, Chauhan S. Interactions of Autophagy and the Immune System in Health and Diseases. AUTOPHAGY REPORTS 2022; 1:438-515. [PMID: 37425656 PMCID: PMC10327624 DOI: 10.1080/27694127.2022.2119743] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Autophagy is a highly conserved process that utilizes lysosomes to selectively degrade a variety of intracellular cargo, thus providing quality control over cellular components and maintaining cellular regulatory functions. Autophagy is triggered by multiple stimuli ranging from nutrient starvation to microbial infection. Autophagy extensively shapes and modulates the inflammatory response, the concerted action of immune cells, and secreted mediators aimed to eradicate a microbial infection or to heal sterile tissue damage. Here, we first review how autophagy affects innate immune signaling, cell-autonomous immune defense, and adaptive immunity. Then, we discuss the role of non-canonical autophagy in microbial infections and inflammation. Finally, we review how crosstalk between autophagy and inflammation influences infectious, metabolic, and autoimmune disorders.
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Affiliation(s)
- Aarti Pant
- Autophagy Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
| | - Xiaomin Yao
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University Grossman School of Medicine, New York, New York, United States of America
- Department of Microbiology, New York University Grossman School of Medicine, New York, New York, United States of America
| | - Aude Lavedrine
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Equipe Labellisée par la Fondation pour la Recherche Médicale, FRM
| | - Christophe Viret
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Equipe Labellisée par la Fondation pour la Recherche Médicale, FRM
| | - Jake Dockterman
- Department of Immunology, Duke University, Medical Center, Durham, North Carolina, USA
| | - Swati Chauhan
- Cell biology and Infectious diseases, Institute of Life Sciences, Bhubaneswar, India
| | - Chong-Shan Shi
- Laboratory of Immunoregulation, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Ravi Manjithaya
- Autophagy Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
- Neuroscience Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
| | - Ken Cadwell
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University Grossman School of Medicine, New York, New York, United States of America
- Department of Microbiology, New York University Grossman School of Medicine, New York, New York, United States of America
- Division of Gastroenterology and Hepatology, Department of Medicine, New York University Grossman School of Medicine, New York, New York, United States of America
| | - Thomas A. Kufer
- Department of Immunology, Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | - John H. Kehrl
- Laboratory of Immunoregulation, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Jörn Coers
- Department of Immunology, Duke University, Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University, Medical Center, Durham, North Carolina, USA
| | - L. David Sibley
- Department of Molecular Microbiology, Washington University Sch. Med., St Louis, MO, 63110, USA
| | - Mathias Faure
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Equipe Labellisée par la Fondation pour la Recherche Médicale, FRM
| | - Gregory A Taylor
- Department of Immunology, Duke University, Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University, Medical Center, Durham, North Carolina, USA
- Department of Molecular Microbiology, Washington University Sch. Med., St Louis, MO, 63110, USA
- Geriatric Research, Education, and Clinical Center, VA Health Care Center, Durham, North Carolina, USA
- Departments of Medicine, Division of Geriatrics, and Center for the Study of Aging and Human Development, Duke University, Medical Center, Durham, North Carolina, USA
| | - Santosh Chauhan
- Cell biology and Infectious diseases, Institute of Life Sciences, Bhubaneswar, India
- CSIR–Centre For Cellular And Molecular Biology (CCMB), Hyderabad, Telangana
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11
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Yang F, Bettadapura SN, Smeltzer MS, Zhu H, Wang S. Pyroptosis and pyroptosis-inducing cancer drugs. Acta Pharmacol Sin 2022; 43:2462-2473. [PMID: 35288674 PMCID: PMC9525650 DOI: 10.1038/s41401-022-00887-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/07/2022] [Indexed: 02/07/2023] Open
Abstract
Pyroptosis, an inflammatory form of lytic cell death, is a type of cell death mediated by the gasdermin (GSDM) protein family. Upon recognizing exogenous or endogenous signals, cells undergo inflammasome assembly, GSDM cleavage, the release of proinflammatory cytokines and other cellular contents, eventually leading to inflammatory cell death. In this review, we discuss the roles of the GSDM family for anti-cancer functions and various antitumor drugs that could activate the pyroptosis pathways.
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Affiliation(s)
- Fan Yang
- Healthville LLC, Little Rock, AR, 72204, USA
| | - Sahana N Bettadapura
- Biology Department, University of Arkansas at Little Rock, Little Rock, AR, 72204, USA
| | - Mark S Smeltzer
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Hua Zhu
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA.
| | - Shanzhi Wang
- Chemistry Department, University of Arkansas at Little Rock, Little Rock, AR, 72204, USA.
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12
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Shi L, Hu Q, Li L, Yang R, Xu X, Du J, Zou L, Li G, Liu S, Li G, Liang S. Beneficial Effects of lncRNA-UC.360+ shRNA on Diabetic Cardiac Sympathetic Damage via NLRP3 Inflammasome-Induced Pyroptosis in Stellate Ganglion. ACS OMEGA 2022; 7:27714-27721. [PMID: 35967043 PMCID: PMC9366958 DOI: 10.1021/acsomega.2c03619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Hyperglycemia is one of the common symptoms of diabetes, and it produces excessive reactive oxygen species (ROS). This study investigated whether the long noncoding RNA (lncRNA) UC.360+ is involved in diabetic cardiac autonomic neuropathy (DCAN) mediated by NLRP3 inflammasome-induced pyroptosis in the stellate ganglion (SG). Using a rat type 2 diabetes model, we found that lncRNA UC.360+ short hairpin RNA (shRNA) ameliorated the dyslipidaemia of type 2 diabetic rats and reduced serum adrenaline and ROS production in SG under hyperglycemia. In addition, UC.360+ shRNA also reduced the expression of nuclear factor kappa-B (NF-κB), NLRP3, ASC, caspase-1, interleukin-1β (IL-1β), and IL-18 in the SG of diabetic rats and inhibited the phosphorylation of p38 mitogen-activated protein kinase (p38 MAPK). Therefore, lncRNA-UC.360+ shRNA may modulate the NLRP3 inflammasome/inflammatory pathway in the SG, which in turn alleviates diabetic heart sympathetic nerve damage.
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Affiliation(s)
- Liran Shi
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- The
people’s hospital of Jiawang of Xuzhou, Xuzhou 221011, China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Qixing Hu
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Lin Li
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Runan Yang
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Xiumei Xu
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Junpei Du
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Lifang Zou
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Department
of Haematology, The First Affiliated Hospital
of Nanchang University, Nanchang, Jiangxi 330006, China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Guilin Li
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Shuangmei Liu
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Guodong Li
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
| | - Shangdong Liang
- Neuropharmacology
Laboratory of Physiology Department, Basic
Medical School of Nanchang University, Nanchang 330006, PR China
- Jiangxi
Provincial Key Laboratory of Autonomic Nervous Function and Disease, Nanchang, Jiangxi 330006, PR China
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13
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Jin P, Qi D, Cui Y, Lenahan C, Zhang JH, Tao X, Deng S, Tang J. Aprepitant attenuates NLRC4-dependent neuronal pyroptosis via NK1R/PKCδ pathway in a mouse model of intracerebral hemorrhage. J Neuroinflammation 2022; 19:198. [PMID: 35922848 PMCID: PMC9351153 DOI: 10.1186/s12974-022-02558-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 07/16/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pyroptosis is a programmed cell death mediated by inflammasomes. Previous studies have reported that inhibition of neurokinin receptor 1 (NK1R) exerted neuroprotection in several neurological diseases. Herein, we have investigated the role of NK1R receptor inhibition using Aprepitant to attenuate NLRC4-dependent neuronal pyroptosis after intracerebral hemorrhage (ICH), as well as the underlying mechanism. METHODS A total of 182 CD-1 mice were used. ICH was induced by injection of autologous blood into the right basal ganglia. Aprepitant, a selective antagonist of NK1R, was injected intraperitoneally at 1 h after ICH. To explore the underlying mechanism, NK1R agonist, GR73632, and protein kinase C delta (PKCδ) agonist, phorbol 12-myristate 13-acetate (PMA), were injected intracerebroventricularly at 1 h after ICH induction, and small interfering ribonucleic acid (siRNA) for NLRC4 was administered via intracerebroventricular injection at 48 h before ICH induction, respectively. Neurobehavioral tests, western blot, and immunofluorescence staining were performed. RESULTS The expression of endogenous NK1R and NLRC 4 were gradually increased after ICH. NK1R was expressed on neurons. Aprepitant significantly improved the short- and long-term neurobehavioral deficits after ICH, which was accompanied with decreased neuronal pyroptosis, as well as decreased expression of NLRC4, Cleaved-caspase-1, GSDMD (gasdermin D), IL-1β, and IL-18. Activation of NK1R or PKCδ abolished these neuroprotective effects of Aprepitant after ICH. Similarly, knocking down NLRC4 using siRNA produced similar neuroprotective effects. CONCLUSION Aprepitant suppressed NLRC4-dependent neuronal pyroptosis and improved neurological function, possibly mediated by inhibition of NK1R/PKCδ signaling pathways after ICH. The NK1R may be a promising therapeutic target for the treatment of ICH.
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Affiliation(s)
- Peng Jin
- Department of Intensive Care Unit, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China.,Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA
| | - Dongqing Qi
- Department of Rehabilitation Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Yuhui Cui
- Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA.,Department of Neurosurgery, Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, 200040, China
| | - Cameron Lenahan
- Burrell College of Osteopathic Medicine, Las Cruces, NM, 88001, USA
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA.,Department of Neurosurgery, Loma Linda University, Loma Linda, CA, 92350, USA.,Department of Anesthesiology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Xiaogen Tao
- Department of Intensive Care Unit, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China.
| | - Shuixiang Deng
- Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA. .,Department of Intensive Care Unit, Huashan Hospital, Fudan University, 12 Urumqi Road, Shanghai, 200040, China.
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA.
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14
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Zhao S, Tan Y, Qin J, Xu H, Liu L, Wan H, Zhang C, Fan W, Qu S. MicroRNA-223-3p promotes pyroptosis of cardiomyocyte and release of inflammasome factors via downregulating the expression level of SPI1 (PU.1). Toxicology 2022; 476:153252. [PMID: 35792203 DOI: 10.1016/j.tox.2022.153252] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 01/10/2023]
Abstract
Diabetic cardiomyopathy (DCM) is a common heart disease in patients with diabetes mellitus (DM), and is sometimes its main cause of death. Among all the causes of DCM, myocardial cell death is considered to be the most basic pathological change. Furthermore, studies have shown that pyroptosis, the pro-inflammatory programmed cell death, contributes to the progress of DCM. MicroRNAs (miRNAs) also have been proved to take part in the formation of DCM. However, it is not clear whether and how miRNAs regulate myocardial cell pyroptosis in DCM development. In our study, the results showed that the expression of miR-223-3p was significantly increased in cardiomyocytes induced by high glucose, whereas the down-regulation of miR-223-3p weakened it. To understand the the signal transduction mechanism of miR-223-3p leading to pyroptosis, we found inhibition of miR-223-3p expression down-reguulated caspase-1, pro-inflammatory cytokines IL-1β and other pyroptosis-associated poteins. Moreover, miR-223-3p repressed SPI1 expression. Furthermore, we silenced SPI1 with siRNA to mimick the effect of miR-223-3p, up-regulating the expression of caspase-1 and resulting to pyroptosis. The above findings inspired us to propose a new signaling pathway to regulate scoria of cardiomyocytes under hyperglycemia: miR-223-3p↑→ SPI1↓→ caspase-1↑ → IL-1β and other pyroptosis-associated poteins↑→ pyroptosis↑. In summary, miR-223-3p could be a potential therapeutic target for DCM.
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Affiliation(s)
- Simin Zhao
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Yao Tan
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Jianning Qin
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Haiqiang Xu
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Lingyun Liu
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Hengquan Wan
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Chi Zhang
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Wenjing Fan
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Shunlin Qu
- Pathophysiology Department, Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, and The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang City, Hunan Province 421001, PR China
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15
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Ge L, Liu D, Mao X, Liu S, Guo J, Hou L, Chen X, Huang K. Low Dose of Deoxynivalenol Aggravates Intestinal Inflammation and Barrier Dysfunction Induced by Enterotoxigenic Escherichia coli Infection through Activating Macroautophagy/NLRP3 Inflammasomes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3009-3022. [PMID: 35201764 DOI: 10.1021/acs.jafc.1c07834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The toxicity of deoxynivalenol (DON) in healthy humans and animals has been extensively studied. However, whether the natural-low-dose DON is scatheless under unhealthy conditions, especially intestinal injury, is unknown. Infection of enterotoxigenic Escherichia coli (ETEC) is a classical intestinal injury model. In this study, we explored the effects of low-dose DON on intestinal injury induced by the ETEC infection and the underlying mechanism in piglets, mice, and IPEC-J2 monolayer cells. Results showed that significant growth slowdown, severe diarrhea, and intestinal damage, bacterial multiplication, and translocation were observed in the experimental group (low-dose DON, 0.75 mg/kg in feed for piglets, and 1 mg/kg body weight for mice, combined with the ETEC infection). Meanwhile, more aggressive intestinal inflammation and barrier dysfunction were observed in animals and IPEC-J2 monolayer cells. Higher expression levels of NLRP3 inflammasome and LC3B were observed in jejunum and IPEC-J2 in the experimental group. After treatment with NLRP3 or caspase1 inhibitors, excessive intestinal inflammation rather than barrier dysfunction in the experimental group was limited. CRISPR-Cas9-mediated knockout of LC3B alleviated intestinal inflammation and barrier dysfunction and also inhibited NLRP3 inflammasome. In conclusion, a low dose of DON aggravates intestinal inflammation and barrier dysfunction induced by the ETEC infection by activating macroautophagy and NLRP3 inflammasome.
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Affiliation(s)
- Lei Ge
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Dandan Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Xinru Mao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Shuiping Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Junyan Guo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Lili Hou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Xingxiang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Kehe Huang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
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16
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Chauhan S, Jena KK, Mehto S, Chauhan NR, Sahu R, Dhar K, Yadav R, Krishna S, Jaiswal P, Chauhan S. Innate immunity and inflammophagy: balancing the defence and immune homeostasis. FEBS J 2021; 289:4112-4131. [PMID: 34826185 DOI: 10.1111/febs.16298] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/27/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022]
Abstract
Extensive crosstalk exists between autophagy and innate immune signalling pathways. The stimuli that induce pattern recognition receptor (PRR)-mediated innate immune signalling pathways, also upregulate autophagy. The purpose of this increased autophagy is to eliminate the stimuli and/or suppress the inflammatory pathways by targeted degradation of PRRs or intermediary proteins (termed 'inflammophagy'). By executing these functions, autophagy dampens excess inflammation triggered by the innate immune signalling pathways. Thus, autophagy helps in the maintenance of the body's innate immune homeostasis to protect from inflammatory and autoimmune diseases. Many autophagy-dependent mechanisms that could control innate immune signalling have been studied over the last few years. However, still, the understanding is incomplete, and studies that are more systematic should be undertaken to delineate the mechanisms of inflammophagy. Here, we discuss the available knowledge of crosstalk between autophagy and PRR signalling pathways.
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Affiliation(s)
- Swati Chauhan
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Kautilya Kumar Jena
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Subhash Mehto
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Nishant Ranjan Chauhan
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Rinku Sahu
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Kollori Dhar
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Rina Yadav
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Sivaram Krishna
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Pundrik Jaiswal
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Santosh Chauhan
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India.,Cell and Cancer Biology Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
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17
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He YF, Huang J, Qian Y, Liu DB, Liu QF. Lipopolysaccharide induces pyroptosis through regulation of autophagy in cardiomyocytes. Cardiovasc Diagn Ther 2021; 11:1025-1035. [PMID: 34815953 DOI: 10.21037/cdt-21-293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/30/2021] [Indexed: 11/06/2022]
Abstract
Background Autophagy, a stress response in eukaryotic cells, is closely related to cardiogenic diseases. Pyroptosis, a newly discovered way of programmed cell death, also plays an important role in cardiovascular disease. However, the role and relationship of autophagy and pyroptosis in lipopolysaccharide (LPS)-induced inflammatory response of cardiomyocytes were still unclear. Methods Western blot was performed to determine the expression of poly ADP-ribosepolmesera-1 (PARP-1), LC3B, NLRP3 and GSDMD in cardiomyocytes after the treatment of LPS. Transfection of si-LC3B, western blot and immunofluorescence (IF) staining were performed to investigate the role of autophagy in LPS-induced pyroptosis. Co-immunoprecipitation (Co-IP) assays and quantitative real-time PCR (qRT-PCR) were conducted to explore whether PARP-1 binding to LC3B and modulating its expression. Transfections of si-PARP-1, western blot and IF were carried out to confirm the role of PARP-1 in the regulation of LPS-induced pyroptosis by autophagy. Results LPS induces autophagy and pyroptosis in cardiomyocytes, enhanced the level of autophagy and inhibited the level of pyroptosis in the concentration of 4 µg/mL. We further proved that autophagy inhibits LPS-induced pyroptosis in cardiomyocytes. In addition, PARP-1 binding to LC3B and regulate the expression of LC3B. Finally, we proved that knockdown of PARP-1 rescued the inhibition of autophagy on LPS-induced pyroptosis of cardiomyocytes. Conclusions LPS induces pyroptosis through regulation of autophagy via PARP-1 at a specific concentration, above which it causes deposition of autophagy flow to promote pyroptosis. Inhibiting LPS-induced pyroptosis could be a promising therapeutic target in treating cardiovascular diseases.
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Affiliation(s)
- You-Fu He
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, China.,Guizhou Provincial Cardiovascular Disease Clinical Medicine Research Center, Guiyang, China.,Medical College, Guizhou University, Guiyang, China
| | - Jing Huang
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, China.,Guizhou Provincial Cardiovascular Disease Clinical Medicine Research Center, Guiyang, China.,Medical College, Guizhou University, Guiyang, China
| | - Yu Qian
- Department of Cardiology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - De-Bin Liu
- Department of Cardiology, Shantou Second People's Hospital, Shantou, China
| | - Qi-Fang Liu
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, China.,Guizhou Provincial Cardiovascular Disease Clinical Medicine Research Center, Guiyang, China
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18
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Li Z, Huang Z, Zhang H, Lu J, Tian Y, Piao S, Lin Z, Bai L. Moderate-intensity exercise alleviates pyroptosis by promoting autophagy in osteoarthritis via the P2X7/AMPK/mTOR axis. Cell Death Dis 2021; 7:346. [PMID: 34759265 PMCID: PMC8580998 DOI: 10.1038/s41420-021-00746-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/19/2021] [Accepted: 10/27/2021] [Indexed: 01/17/2023]
Abstract
Instability and excessive use of the knee joint can cause osteoarthritis (OA). Reasonable exercise can enhance the stability of the knee joint and prevent and relieve the occurrence and development of OA. As a key switch for inflammation, P2X purinoceptor 7 (P2X7) has attracted much attention in studies of OA. Exercise can regulate P2X7 expression and activation. However, the role of P2X7 in exercise-based prevention and treatment of OA is unknown. We previously showed that moderate-intensity exercise can significantly alleviate OA symptoms. Accordingly, in this study, we evaluated the effects of exercise on P2X7 expression and activation in chondrocytes. Micro-computed tomography, hematoxylin, and eosin staining, Toluidine Blue O staining, immunohistochemistry, and terminal deoxynucleotidyl transferase dUTP nick-end labeling experiments showed that P2X7 expression was lower in the moderate-intensity exercise group than in the inflammation and low- and high-intensity exercise groups. Additionally, chondrocyte death, cartilage destruction, and the degree and severity of pyroptosis were significantly reduced, whereas autophagy levels were significantly increased in the moderate-intensity exercise group. Cell Counting Kit-8 assay, lactate dehydrogenase release, flow cytometry, enzyme-linked immunosorbent assay, cell fluorescence, western blot, reverse transcription-quantitative polymerase chain reaction, and transmission electron microscopy experiments showed that moderate activation of P2X7 promoted autophagy through the AMP-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway and promoted autolysosome targeting for degradation of the inflammasome component NLRP3, thereby inhibiting pyroptosis. Additionally, the use of AMPK and mTOR activators and inhibitors indicated that the AMPK-mTOR signaling pathway, as the downstream of P2X7, played a key role in delaying the occurrence and development of OA. We propose that moderate-intensity exercise promoted chondrocyte autophagy through the P2X7/AMPK/mTOR signal axis to alleviate pyroptosis. Our findings provide novel insights into the positive and preventative effects of exercise on OA.
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Affiliation(s)
- Zihao Li
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Ziyu Huang
- grid.412531.00000 0001 0701 1077Foreign Languages College, Shanghai Normal University, Shanghai, 200234 China
| | - He Zhang
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Jinghan Lu
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Yicheng Tian
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Shang Piao
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Zhiming Lin
- grid.412467.20000 0004 1806 3501Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024 China
| | - Lunhao Bai
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110024, China.
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19
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Shao R, Wang X, Xu T, Xia Y, Cui D. The balance between AIM2-associated inflammation and autophagy: the role of CHMP2A in brain injury after cardiac arrest. J Neuroinflammation 2021; 18:257. [PMID: 34740380 PMCID: PMC8571899 DOI: 10.1186/s12974-021-02307-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/27/2021] [Indexed: 12/30/2022] Open
Abstract
Background Activation of the absent in melanoma 2 (AIM2) inflammasome and impaired autophagosome clearance in neurons contribute significantly to cardiac arrest and return of spontaneous circulation (CA-ROSC) injury, while the mechanism by which the AIM2 inflammasome is regulated and relationship between the processes remain poorly understood. Recently, charged multivesicular body protein 2A (CHMP2A), a subunit of endosomal sorting complex required for transport (ESCRT), was shown to regulate phagophore closure, and its depletion led to the accumulation of autophagosomes and induced cell death. Here, we investigated whether CHMP2A-mediated autophagy was an underlying mechanism of AIM2-associated inflammation after CA-ROSC and explored the potential link between the AIM2 inflammasome and autophagy under ischemic conditions. Methods AIM2 inflammasome activation and autophagic flux in the cortex were assessed in the CA-ROSC rat model. We injected LV-Vector or LV-CHMP2A virus into the motor cortex with stereotaxic coordinates and divided the rats into four groups: Sham, CA, CA+LV-Vector, and CA+LV-CHMP2A. Neurologic deficit scores (NDSs), balance beam tests, histopathological injury of the brain, and expression of the AIM2 inflammasome and proinflammatory cytokines were analyzed. Results AIM2 inflammasome activation and increased interleukin 1 beta (IL-1β) and IL-18 release were concurrent with reduced levels of CHMP2A-induced autophagy in CA-ROSC rat neurons. In addition, silencing CHMP2A resulted in autophagosome accumulation and decreased autophagic degradation of the AIM2 inflammasome. In parallel, a reduction in AIM2 contributed to autophagy activation and mitigated oxygen–glucose deprivation and reperfusion (OGD-Rep)-induced inflammation. Notably, CHMP2A overexpression in the cortex hindered neuroinflammation, protected against ischemic brain damage, and improved neurologic outcomes after CA. Conclusions Our results support a potential link between autophagy and AIM2 signaling, and targeting CHMP2A may provide new insights into neuroinflammation in the early phase during CA-ROSC. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02307-8.
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Affiliation(s)
- Rongjiao Shao
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Xintao Wang
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Tianhua Xu
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Yiyang Xia
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Derong Cui
- Department of Anesthesiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No.600 Yishan Road, Xuhui District, Shanghai, 200233, China.
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20
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Sun W, Lu H, Dong S, Li R, Chu Y, Wang N, Zhao Y, Zhang Y, Wang L, Sun L, Lu D. Beclin1 controls caspase-4 inflammsome activation and pyroptosis in mouse myocardial reperfusion-induced microvascular injury. Cell Commun Signal 2021; 19:107. [PMID: 34732218 PMCID: PMC8565084 DOI: 10.1186/s12964-021-00786-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 09/06/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Myocardial reperfusion injury is often accompanied by cell death and inflammatory reactions. Recently, pyroptosis is gradually recognized as pivotal role in cardiovascular disease. However, little is known about the regulatory role of beclin1 in the control of caspase-4 activation and pyroptosis. The present study confirmed whether beclin1 regulates caspase-4 mediated pyroptosis and thereby protects Human Cardiac microvascular endothelial cells (HCMECs) against injury. METHODS TTC and Evan's blue dye, western blot, immunofluorescence and immunohistochemistry staining were performed in wild mice and transgenic mice with overexpression of beclin 1(BECN1-Tg). CMECs were transfected with a beclin1 lentivirus. The cell cytotoxicity was analyzed by LDH-Cytotoxicity Assay Kit. The protein levels of autophagy protein (Beclin1, p62 and LC3II/LC3I) and caspase-4/GSDMD pathway were determined by western blot. Autophagic vacuoles in cells were monitored with RFP-GFP-LC3 using fluorescence microscope. RESULTS I/R caused caspase-4 activity and gasdermin D expression increase in vivo and in vitro. Overexpression of beclin1 in heart tissue and CMECs suppressed the caspase-4 activity and decreased the levels of gasdermin D; meanwhile beclin1 overexpression also reduced IL-1β levels, promoted autophagy (p62 expression was inhibited while LC3II expression was increased) in the heart and CMECs. Interestingly, beclin1 overexpression increased animal survival and attenuated myocardial infarct size (45 ± 6.13 vs 22 ± 4.37), no-reflow area (39 ± 5.22 vs 16 ± 2.54) post-myocardial ischemia reperfusion. CONCLUSIONS Induction of beclin-1 signaling can be a potential therapeutic target in myocardial reperfusion-induced microvascular injury. Video Abstract.
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Affiliation(s)
- Wenjing Sun
- Department of Cardiology, Henan Provincial People’s Hospital, Zhengzhou, 450000 China
| | - Hongquan Lu
- Department of Nuclear Medicine, Third People’s Hospital of Honghe State, Honghe, 661000 China
| | - Shujuan Dong
- Department of Cardiology, Henan Provincial People’s Hospital, Zhengzhou, 450000 China
| | - Rui Li
- Department of Cardiology, Yunnan Geriatric Hospital, Kunming, 650501 China
| | - Yingjie Chu
- Department of Cardiology, Henan Provincial People’s Hospital, Zhengzhou, 450000 China
| | - Nan Wang
- Science and Technology Achievement Incubation Center, Kunming Medical University, Chenggong District, 1168 West Chunrong Road, Yuhua Avenue, Kunming, 650500 Yunnan China
| | - Yu Zhao
- Science and Technology Achievement Incubation Center, Kunming Medical University, Chenggong District, 1168 West Chunrong Road, Yuhua Avenue, Kunming, 650500 Yunnan China
| | - Yabin Zhang
- Department of Nuclear Medicine, Third People’s Hospital of Honghe State, Honghe, 661000 China
| | - Limeiting Wang
- Science and Technology Achievement Incubation Center, Kunming Medical University, Chenggong District, 1168 West Chunrong Road, Yuhua Avenue, Kunming, 650500 Yunnan China
| | - Lin Sun
- Department of Cardiology, The Second Affiliated Hospital, Kunming Medical University, 374 Dianmian Road, Wuhua District, Kunming, 650101 China
| | - Di Lu
- Science and Technology Achievement Incubation Center, Kunming Medical University, Chenggong District, 1168 West Chunrong Road, Yuhua Avenue, Kunming, 650500 Yunnan China
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21
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Mechanisms of Kidney Cell Pyroptosis in Chronic Kidney Disease and the Effects of Traditional Chinese Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:1173324. [PMID: 34671403 PMCID: PMC8523237 DOI: 10.1155/2021/1173324] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/01/2021] [Accepted: 09/17/2021] [Indexed: 12/19/2022]
Abstract
Chronic kidney disease (CKD) is a major public health issue that is highly prevalent worldwide. Pyroptosis is an important pathological mechanism underlying kidney cell damage in CKD and is associated with the classic caspase-1-mediated pathway and nonclassic caspase-4/5/11-mediated pathway. The NLRP3-caspase-1-GSDMD signaling pathway is the key mechanism of kidney cell pyroptosis in CKD, and noncoding RNAs such as lncRNAs and miRNAs are important regulators of kidney cell pyroptosis in CKD. In addition, the NLRP1/AIM2-caspase-1-GSDMD and caspase-3-GSDME signaling pathways have also been shown to mediate kidney cell pyroptosis. Traditional Chinese medicine (TCM) and extracts can interfere with the occurrence and development of kidney cell pyroptosis in CKD by inhibiting the NLRP3 signaling pathway and oxidative stress, activating Nrf-2 signaling, protecting mitochondrial integrity, regulating AMPK signaling, and regulating TXNIP/NLRP3 axis, which have become increasingly prominent. It is critical to explore the effects of TCM on kidney cell pyroptosis in CKD and its mechanisms to identify targets and develop new and effective drugs.
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22
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Liu C, Gu L, Ding J, Meng Q, Li N, Dai G, Li Q, Wu X. Autophagy in skin barrier and immune-related skin diseases. J Dermatol 2021; 48:1827-1837. [PMID: 34655245 DOI: 10.1111/1346-8138.16185] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/15/2021] [Accepted: 09/24/2021] [Indexed: 12/15/2022]
Abstract
Autophagy is a process which is highly conserved in eukaryotes to degrade or recycle cytoplasmic components through lysosomes to maintain cellular homeostasis. Recent studies have shown that autophagy also plays critical roles in cell apoptosis, inflammation, pathogen clearance, and so on under stressed conditions and thereby has been linked to a variety of human disorders. The skin is the largest organ of the body and serves as the first line of defense against environmental insult. Skin as a nutrient-poor environment requires recycling of limited resources via the autophagy machinery to maintain homeostasis. Therefore, dysregulation of autophagy has been linked to skin diseases. In this review, we describe the molecular machinery and regulation of autophagy, discuss its role in keratinocytes and skin barrier, skin immune cells, and immune-related skin diseases including autoimmune skin disorders, allergic skin diseases, infectious skin disorders, and antitumor immunity against skin tumor. Finally, we highlight the potential of autophagy as a therapeutic target for immune-related skin diseases, and delivery of autophagy-related molecules (such as inducers, inhibitors, or nucleic acid molecules) by virtue of physical materials (such as nanoparticles) or biological materials (such as peptides) to skin topically may obtain clinical benefits in immune-related skin diseases. Moreover, developing autophagy-related gene product-based biomarkers may be promising to diagnose immune-related skin diseases.
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Affiliation(s)
- Chi Liu
- Department of Geriatrics Center & National Clinical Research Center for Aging and Medicine, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, China.,Department of Cardiology, School of Medicine, Tongji Hospital, Tongji University, Shanghai, China
| | - Lei Gu
- Department of Internal Medicine, Shanghai Shende Hospital, Shanghai, China
| | - Jie Ding
- Department of Gerontology, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, China
| | - Qianchao Meng
- Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Nan Li
- Department of Geriatrics Center & National Clinical Research Center for Aging and Medicine, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, China
| | - Guifeng Dai
- Department of Geriatrics Center & National Clinical Research Center for Aging and Medicine, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, China
| | - Qinying Li
- Department of Rehabilitation Medicine, Jing'an District Center Hospital of Shanghai, Fudan University, Shanghai, China
| | - Xueyong Wu
- Department of Geriatrics Center & National Clinical Research Center for Aging and Medicine, Jing'an District Centre Hospital of Shanghai, Fudan University, Shanghai, China
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23
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Rodríguez-Antonio I, López-Sánchez GN, Uribe M, Chávez-Tapia NC, Nuño-Lámbarri N. Role of the inflammasome, gasdermin D, and pyroptosis in non-alcoholic fatty liver disease. J Gastroenterol Hepatol 2021; 36:2720-2727. [PMID: 34050551 DOI: 10.1111/jgh.15561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/17/2021] [Accepted: 05/26/2021] [Indexed: 12/25/2022]
Abstract
Pyroptosis is a type of programmed cell death mediated by a multiprotein complex called the inflammasome through the pro-inflammatory activity of gasdermin D. This study aimed to recognize the final biological product that leads to pore formation in the cell membrane, lysis, pro-inflammatory cytokines release, and the establishment of an immune response. An exhaustive search engine investigation of an elevated immune response can induce a sustained inflammation that directly links this mechanism to non-alcoholic fatty liver disease and its progression to non-alcoholic steatohepatitis. Clinical studies and systematic reviews suggest that gasdermin D is a critical molecule between the immune response and the disease manifestation, which could be considered a therapeutic target for highly prevalent diseases characterized by presenting perpetuated inflammatory processes. Both basic and clinical research show evidence on the expression and regulation of the inflammasome-gasdermin D-pyroptosis trinomial for the progression of non-alcoholic fatty liver disease to non-alcoholic steatohepatitis.
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Affiliation(s)
| | | | - Misael Uribe
- Obesity and Digestive Diseases Unit, Médica Sur Clinic Foundation, Mexico City, Mexico
| | - Norberto C Chávez-Tapia
- Traslational Research Unit, Médica Sur Clinic Foundation, Mexico City, Mexico.,Obesity and Digestive Diseases Unit, Médica Sur Clinic Foundation, Mexico City, Mexico
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24
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Zhang C, Hu Z, Hu R, Pi S, Wei Z, Wang C, Yang F, Xing C, Nie G, Hu G. New insights into crosstalk between pyroptosis and autophagy co-induced by molybdenum and cadmium in duck renal tubular epithelial cells. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126138. [PMID: 34492927 DOI: 10.1016/j.jhazmat.2021.126138] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 04/30/2021] [Accepted: 05/13/2021] [Indexed: 06/13/2023]
Abstract
Pyroptosis and autophagy are two different biological processes that determine cell fates. Our previous studies revealed that pyroptosis and autophagy were involved in cytotoxicity co-induced by molybdenum (Mo) and cadmium (Cd) in duck renal tubular epithelial cells, but crosstalk between them is unclear. Hence, the cells were treated with 500.0 μM Mo, 4.0 μM Cd, 10.0 μM Z-YVAD-fluoromethylketone (YVAD), 2.5 μM 3-methyladenine (3-MA) and 10.0 μM chloroquine (CQ) alone or in combination for 12 h (CQ for the last 4 h). Under Mo and Cd co-stress, data evidenced that YVAD addition decreased the number of autophagosomes, LC3 puncta, and AMPKα-1, Atg5, Beclin-1, LC3A, LC3B mRNA levels and LC3-II/LC3-I, Beclin-1 protein levels, and increased p62 expression levels. Besides, both 3-MA and CQ addition increased NLRP3, Caspase-1, NEK7, ASC, GSDMA, GSDME, IL-1β, IL-18 mRNA levels, NLRP3, Caspase-1 p20, ASC, GSDMD protein and ROS levels, and NO, LDH, IL-1β, IL-18 releases. Collectively, our results revealed that pyroptosis and autophagy co-induced by Mo and Cd were interrelated in duck renal tubular epithelial cells, and inhibiting pyroptosis might attenuate Mo and Cd co-induced autophagy, but inhibiting autophagy might promote Mo and Cd co-induced pyroptosis.
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Affiliation(s)
- Caiying Zhang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Zhisheng Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Ruiming Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Shaoxing Pi
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Zejing Wei
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Chang Wang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Chenghong Xing
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Gaohui Nie
- School of Information Technology,Jiangxi University of Finance and Economics, No. 665 Yuping West street, Economic and Technological Development District, Nanchang 330032, Jiangxi, PR China.
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China.
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25
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Autophagy Regulation on Pyroptosis: Mechanism and Medical Implication in Sepsis. Mediators Inflamm 2021; 2021:9925059. [PMID: 34257519 PMCID: PMC8253640 DOI: 10.1155/2021/9925059] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
Sepsis is defined as a life-threatening disease involving multiple organ dysfunction caused by dysregulated host responses to infection. To date, sepsis remains a dominant cause of death among critically ill patients. Pyroptosis is a unique form of programmed cell death mediated by the gasdermin family of proteins and causes lytic cell death and release of proinflammatory cytokines. Although there might be some positive aspects to pyroptosis, it is regarded as harmful during sepsis and needs to be restricted. Autophagy was originally characterized as a homeostasis-maintaining mechanism in living cells. In the past decade, its function in negatively modulating pyroptosis and inflammation during sepsis has attracted increased attention. Here, we present a comprehensive review of the regulatory effect of autophagy on pyroptosis during sepsis, including the latest advances in our understanding of the mechanism and signaling pathways involved, as well as the potential therapeutic application in sepsis.
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26
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Gou X, Xu D, Li F, Hou K, Fang W, Li Y. Pyroptosis in stroke-new insights into disease mechanisms and therapeutic strategies. J Physiol Biochem 2021; 77:511-529. [PMID: 33942252 DOI: 10.1007/s13105-021-00817-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 04/13/2021] [Indexed: 02/07/2023]
Abstract
Stroke is a common disease with high mortality and disability worldwide. Different forms of cell deaths, including apoptosis and necrosis, occur in ischemic or hemorrhagic brain tissue, among which pyroptosis, a newly discovered inflammation-related programmed cell death, is generally divided into two main pathways, the canonical inflammasome pathway and the non-canonical inflammasome pathway. Caspase-mediated pyroptosis requires the assembly of inflammasomes such as NLRP3, which leads to the release of inflammatory cytokines IL-1β and IL-18 through the pores formed in the plasma membrane by GSDMD followed by neuroinflammation. Recently, pyroptosis and its relationship with inflammation have attracted more and more attention in the study of cerebral ischemia or hemorrhage. In addition, many inhibitors of pyroptosis targeting caspase, NLRP3, and the upstream pathway have been found to reduce brain tissue damage after stroke. In this review, we mainly introduce the pathology of stroke, the molecular mechanism, and process of pyroptosis, as well as the pivotal roles of pyroptosis in stroke, in order to provide new insights for the treatment of stroke.
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Affiliation(s)
- Xue Gou
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China
| | - Dan Xu
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China
| | - Fengyang Li
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China
| | - Kai Hou
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China.,Department of Pharmacy, Zhongda Hospital, Southeast University, Nanjing, China
| | - Weirong Fang
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China.
| | - Yunman Li
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing, 210009, China.
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27
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Wu C, Chen H, Zhuang R, Zhang H, Wang Y, Hu X, Xu Y, Li J, Li Y, Wang X, Xu H, Ni W, Zhou K. Betulinic acid inhibits pyroptosis in spinal cord injury by augmenting autophagy via the AMPK-mTOR-TFEB signaling pathway. Int J Biol Sci 2021; 17:1138-1152. [PMID: 33867836 PMCID: PMC8040310 DOI: 10.7150/ijbs.57825] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/25/2021] [Indexed: 12/21/2022] Open
Abstract
Spinal cord injury (SCI) results in a wide range of disabilities. Its complex pathophysiological process limits the effectiveness of many clinical treatments. Betulinic acid (BA) has been shown to be an effective treatment for some neurological diseases, but it has not been studied in SCI. In this study, we assessed the role of BA in SCI and investigated its underlying mechanism. We used a mouse model of SCI, and functional outcomes following injury were assessed. Western blotting, ELISA, and immunofluorescence techniques were employed to analyze levels of autophagy, mitophagy, pyroptosis, and AMPK-related signaling pathways were also examined. Our results showed that BA significantly improved functional recovery following SCI. Furthermore, autophagy, mitophagy, ROS level and pyroptosis were implicated in the mechanism of BA in the treatment of SCI. Specifically, our results suggest that BA restored autophagy flux following injury, which induced mitophagy to eliminate the accumulation of ROS and inhibits pyroptosis. Further mechanistic studies revealed that BA likely regulates autophagy and mitophagy via the AMPK-mTOR-TFEB signaling pathway. Those results showed that BA can significantly promote the recovery following SCI and that it may be a promising therapy for SCI.
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Affiliation(s)
- Chenyu Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Huanwen Chen
- University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Rong Zhuang
- Department of Anesthesiology, Critical Care and Pain Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Haojie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Yongli Wang
- Department of Orthopaedics, Huzhou Central Hospital, Huzhou 313000, China
| | - Xinli Hu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Yu Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Jiafeng Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Yao Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Hui Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China
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28
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Jakubik D, Fitas A, Eyileten C, Jarosz-Popek J, Nowak A, Czajka P, Wicik Z, Sourij H, Siller-Matula JM, De Rosa S, Postula M. MicroRNAs and long non-coding RNAs in the pathophysiological processes of diabetic cardiomyopathy: emerging biomarkers and potential therapeutics. Cardiovasc Diabetol 2021; 20:55. [PMID: 33639953 PMCID: PMC7916283 DOI: 10.1186/s12933-021-01245-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/13/2021] [Indexed: 02/08/2023] Open
Abstract
The epidemic of diabetes mellitus (DM) necessitates the development of novel therapeutic and preventative strategies to attenuate complications of this debilitating disease. Diabetic cardiomyopathy (DCM) is a frequent disorder affecting individuals diagnosed with DM characterized by left ventricular hypertrophy, diastolic and systolic dysfunction and myocardial fibrosis in the absence of other heart diseases. Progression of DCM is associated with impaired cardiac insulin metabolic signaling, increased oxidative stress, impaired mitochondrial and cardiomyocyte calcium metabolism, and inflammation. Various non-coding RNAs, such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), as well as their target genes are implicated in the complex pathophysiology of DCM. It has been demonstrated that miRNAs and lncRNAs play an important role in maintaining homeostasis through regulation of multiple genes, thus they attract substantial scientific interest as biomarkers for diagnosis, prognosis and as a potential therapeutic strategy in DM complications. This article will review the different miRNAs and lncRNA studied in the context of DM, including type 1 and type 2 diabetes and the contribution of pathophysiological mechanisms including inflammatory response, oxidative stress, apoptosis, hypertrophy and fibrosis to the development of DCM .
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Affiliation(s)
- Daniel Jakubik
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland
| | - Alex Fitas
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland
| | - Ceren Eyileten
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland
| | - Joanna Jarosz-Popek
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland.,Doctoral School, Medical University of Warsaw, 02-091, Warsaw, Poland
| | - Anna Nowak
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland
| | - Pamela Czajka
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland
| | - Zofia Wicik
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland.,Centro de Matemática, Computação e Cognição, Universidade Federal Do ABC, São Paulo, Brazil
| | - Harald Sourij
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Jolanta M Siller-Matula
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland.,Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Salvatore De Rosa
- Division of Cardiology, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy.,Cardiovascular Research Center, "Magna Graecia" University, Catanzaro, Italy
| | - Marek Postula
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research and Technology CEPT, Medical University of Warsaw, Banacha 1B Str., 02-097, Warsaw, Poland.
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29
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Li Z, Huang Z, Bai L. The P2X7 Receptor in Osteoarthritis. Front Cell Dev Biol 2021; 9:628330. [PMID: 33644066 PMCID: PMC7905059 DOI: 10.3389/fcell.2021.628330] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022] Open
Abstract
Osteoarthritis (OA) is the most common joint disease. With the increasing aging population, the associated socio-economic costs are also increasing. Analgesia and surgery are the primary treatment options in late-stage OA, with drug treatment only possible in early prevention to improve patients' quality of life. The most important structural component of the joint is cartilage, consisting solely of chondrocytes. Instability in chondrocyte balance results in phenotypic changes and cell death. Therefore, cartilage degradation is a direct consequence of chondrocyte imbalance, resulting in the degradation of the extracellular matrix and the release of pro-inflammatory factors. These factors affect the occurrence and development of OA. The P2X7 receptor (P2X7R) belongs to the purinergic receptor family and is a non-selective cation channel gated by adenosine triphosphate. It mediates Na+, Ca2+ influx, and K+ efflux, participates in several inflammatory reactions, and plays an important role in the different mechanisms of cell death. However, the relationship between P2X7R-mediated cell death and the progression of OA requires investigation. In this review, we correlate potential links between P2X7R, cartilage degradation, and inflammatory factor release in OA. We specifically focus on inflammation, apoptosis, pyroptosis, and autophagy. Lastly, we discuss the therapeutic potential of P2X7R as a potential drug target for OA.
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Affiliation(s)
- Zihao Li
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ziyu Huang
- Foreign Languages College, Shanghai Normal University, Shanghai, China
| | - Lunhao Bai
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
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30
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Huang J, Zhu T, Rong R, You M, Ji D, Li H. FUN14 domain-containing 1-mediated mitophagy suppresses interleukin-1β production in macrophages. Int Immunopharmacol 2020; 88:106964. [PMID: 33182075 DOI: 10.1016/j.intimp.2020.106964] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/14/2020] [Accepted: 08/28/2020] [Indexed: 01/18/2023]
Abstract
Mitochondria play a critical role in triggering immune response. Although recent evidence indicates that autophagy/mitophagy can suppress inflammation via regulation of mitochondrial homeostasis, limited information is available regarding physiological regulation of mitochondria-controlled inflammation. In this study, we investigated FUN14 domain containing 1 (FUNDC1)-mediated mitophagy in the regulation of interleukin-1β (IL-1β) in vitro and in vivo, wild-type FUNDC1 and its mitophagy defective Y18A/L21A mutant were analyzed in bone marrow-derived macrophages (BMDMs)for their effects on IL-1β expression and mitochondrial damage. The current study identified that LPS plus nigericin stimulation induced NLR family pyrin domain containing 3 (NLRP3) inflammasome activation, which was detected by IL-1β expression. Moreover, FUNDC1-mediated mitophagy promoted the alleviation of intracellular reactive oxygen species (ROS). IL-1β production was suppressed by the overexpression of wild-type FUNDC1, but not the Y18A/L21A mutant. Our results suggest that FUNDC1 suppresses LPS plus nigericin-mediated IL-1β production through its regulatory effect on mitophagy, which will greatly promote the understanding of mitophagy-related protein in the regulation of immune response.
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Affiliation(s)
- Jia Huang
- Department of Intensive Care Unit, Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen Third People's Hospital, Shenzhen 518112, China
| | - Tengfei Zhu
- Department of Intensive Care Unit, Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen Third People's Hospital, Shenzhen 518112, China
| | - Rong Rong
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Mengling You
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Dan Ji
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China; Hunan Key Laboratory of Ophthalmogy, Central South University, Changsha 410008, Hunan Province, China.
| | - Haibo Li
- Eye Center of Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China; Hunan Key Laboratory of Ophthalmogy, Central South University, Changsha 410008, Hunan Province, China.
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31
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Xiao C, Zhao H, Zhu H, Zhang Y, Su Q, Zhao F, Wang R. Tisp40 Induces Tubular Epithelial Cell GSDMD-Mediated Pyroptosis in Renal Ischemia-Reperfusion Injury via NF-κB Signaling. Front Physiol 2020; 11:906. [PMID: 32903383 PMCID: PMC7438479 DOI: 10.3389/fphys.2020.00906] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/06/2020] [Indexed: 12/11/2022] Open
Abstract
Renal ischemia-reperfusion injury (IRI) is a major cause of acute kidney injury (AKI). As a transcription factor, the Transcript induced in spermiogenesis 40 (Tisp40) has been found to be involved in renal IRI. However, the role of Tisp40 in tubular epithelial cell (TEC) pyroptosis of renal IRI remains unknown. In this study, we investigated effects of Tisp40 on Gasdermin D (GSDMD)-mediated TEC pyroptosis in renal IRI and underlying molecular mechanisms in I/R-induced kidney by hematoxylin and eosin (HE) staining, Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay,immunohistochemistry (IHC), reverse transcription-quantitative PCR (RT-qPCR) and western blot analysis in vivo and oxygen-glucose deprivation/reoxygenation (OGD/R)-stimulated TCMK-1 cells by lactate dehydrogenase (LDH) release assay, CCK-8 assay,enzyme-linked immunosorbent assay (ELISA), flow cytometric analysis, immunofluorescence staining,RT-qPCRand western blot analysis in vitro. We found that the levels of Tisp40 and GSDMD-N expression increased gradually, and peaked at 30 min ischemia/24 h reperfusion in vivo and 24 h OGD/R/6 h reoxygenation in vitro, simultaneously, the levels of TEC pyroptosis and renal injury were correspondingly increased. The data of Pearson’s correlation analysis showed that the expression of Tisp40 and GSDMD-N was positively correlated. Furthermore, Tisp40 overexpression aggravated TEC pyroptosis rate and increased the expressions of related proteins, including GSDMD-N, NLRP3, caspase-1, IL-1β, and IL-18 in the OGD/R-stimulated TCMK-1 cell line, whereas the opposite occurred in cells treated with small interfeing RNA (siRNA) targeting Tisp40. Tisp40-deficient mice showed attenuated renal IRI and pyroptosis compared with wild-type mice. In addition, Tisp40 knockout remarkably decreased the levels of GSDMD-N, IL-1β, IL-18, NLRP3, and caspase-1 expression, and alleviated renal pyroptosis induced by I/R. Importantly, Tisp40 overexpression significantly increased TECs pyroptosis via p-p65 activation, however, the effects of Tisp40 overexpression were partially blocked by parthenolide (PTL). Collectively, our findings provide insight into the mechanism of how Tisp40 regulated GSDMD-mediated pyroptosis in renal IRI.
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Affiliation(s)
- Chengcheng Xiao
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Haijun Zhao
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Hai Zhu
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Yingyu Zhang
- Department of Traditional Chinese Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Qiuju Su
- Department of Traditional Chinese Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Feng Zhao
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Renhe Wang
- Department of Traditional Chinese Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
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Abu Khweek A, Amer AO. Pyroptotic and non-pyroptotic effector functions of caspase-11. Immunol Rev 2020; 297:39-52. [PMID: 32737894 PMCID: PMC7496135 DOI: 10.1111/imr.12910] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022]
Abstract
Innate immune cells, epithelial cells, and many other cell types are capable of detecting infection or tissue injury, thus mounting regulated immune response. Inflammasomes are highly sophisticated and effective orchestrators of innate immunity. These oligomerized multiprotein complexes are at the center of various innate immune pathways, including modulation of the cytoskeleton, production and maturation of cytokines, and control of bacterial growth and cell death. Inflammasome assembly often results in caspase‐1 activation, which is an inflammatory caspase that is involved in pyroptotic cell death and release of inflammatory cytokines in response to pathogen patterns and endogenous danger stimuli. However, the nature of stimuli and inflammasome components are diverse. Caspase‐1 activation mediated release of mature IL‐1β and IL‐18 in response to canonical stimuli initiated by NOD‐like receptor (NLR), and apoptosis‐associated speck‐like protein containing a caspase recruitment domain (ASC). On the other hand, caspase‐11 delineates a non‐canonical inflammasome that promotes pyroptotic cell death and non‐pyroptotic functions in response to non‐canonical stimuli. Caspase‐11 in mice and its homologues in humans (caspase‐4/5) belong to caspase‐1 family of cysteine proteases, and play a role in inflammation. Knockout mice provided new genetic tools to study inflammatory caspases and revealed the role of caspase‐11 in mediating septic shock in response to lethal doses of lipopolysaccharide (LPS). Recognition of LPS mediates caspase‐11 activation, which promotes a myriad of downstream effects that include pyroptotic and non‐pyroptotic effector functions. Therefore, the physiological functions of caspase‐11 are much broader than its previously established roles in apoptosis and cytokine maturation. Inflammation induced by exogenous or endogenous agents can be detrimental and, if excessive, can result in organ and tissue damage. Consequently, the existence of sophisticated mechanisms that tightly regulate the specificity and sensitivity of inflammasome pathways provides a fine‐tuning balance between adequate immune response and minimal tissue damage. In this review, we summarize effector functions of caspase‐11.
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Affiliation(s)
- Arwa Abu Khweek
- Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine
| | - Amal O Amer
- Department of Microbial Infection and Immunity, Infectious Disease Institute, College of Medicine, The Ohio State University, Columbus, OH, USA
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Wu C, Xu H, Li J, Hu X, Wang X, Huang Y, Li Y, Sheng S, Wang Y, Xu H, Ni W, Zhou K. Baicalein Attenuates Pyroptosis and Endoplasmic Reticulum Stress Following Spinal Cord Ischemia-Reperfusion Injury via Autophagy Enhancement. Front Pharmacol 2020; 11:1076. [PMID: 32903577 PMCID: PMC7438740 DOI: 10.3389/fphar.2020.01076] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/02/2020] [Indexed: 12/20/2022] Open
Abstract
Background Spinal cord ischemia-reperfusion injury (SCIRI) is the main complication after the repair of a complex thoracoabdominal aortic aneurysm. Many clinical treatments are not ideal due to the complex pathophysiological process of this injury. Baicalein (BA), a component derived from the roots of the herb Scutellaria baicalensis, may contribute to the successful treatment of ischemia/reperfusion injury. Purpose In the present study, the effects of BA on spinal cord ischemia-reperfusion injury and the underlying mechanisms were assessed. Materials and Methods Spinal cord ischemia was induced in C57BL/6 mice by blocking the aortic arch. Fifty-five mice were then randomly divided into four groups: Sham, SCIR+Vehicle, SCIR+BA, and SCIR+BA +3MA groups. At 0 and 24 h pre-SCIRI and at 24 h and 7 days post-SCIRI, evaluations with the Basso mouse scale (BMS) were performed. On postoperative 24 h, the spinal cord was harvested to assess pyroptosis, endoplasmic reticulum stress mediated apoptosis and autophagy. Results BA enhanced the functional recovery of spinal cord ischemia-reperfusion injury. In addition, BA attenuated pyroptosis, alleviated endoplasmic reticulum stress-mediated apoptosis, and activated autophagy. However, the effects of BA on the functional recovery of SCIRI, pyroptosis and endoplasmic reticulum stress-mediated apoptosis were reversed by the inhibition of autophagy. Conclusions In general, our findings revealed that BA enhances the functional recovery of spinal cord ischemia-reperfusion injury by dampening pyroptosis and alleviating endoplasmic reticulum stress-mediated apoptosis, which are mediated by the activation of autophagy.
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Affiliation(s)
- Chenyu Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Hui Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Jiafeng Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Xinli Hu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Xingyu Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Yijia Huang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Yao Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Sunren Sheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Yongli Wang
- Department of Orthopaedics, Huzhou Central Hospital, Huzhou, China
| | - Huazi Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
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Birra D, Benucci M, Landolfi L, Merchionda A, Loi G, Amato P, Licata G, Quartuccio L, Triggiani M, Moscato P. COVID 19: a clue from innate immunity. Immunol Res 2020; 68:161-168. [PMID: 32524333 PMCID: PMC7286633 DOI: 10.1007/s12026-020-09137-5] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The recent COVID-19 pandemic has had a significant impact on our lives and has rapidly expanded to reach more than 4 million cases worldwide by May 2020. These cases are characterized by extreme variability, from a mild or asymptomatic form lasting for a few days up to severe forms of interstitial pneumonia that may require ventilatory therapy and can lead to patient death.Several hypotheses have been drawn up to understand the role of the interaction between the infectious agent and the immune system in the development of the disease and the most severe forms; the role of the cytokine storm seems important.Innate immunity, as one of the first elements of guest interaction with different infectious agents, could play an important role in the development of the cytokine storm and be responsible for boosting more severe forms. Therefore, it seems important to study also this important arm of the immune system to adequately understand the pathogenesis of the disease. Research on this topic is also needed to develop therapeutic strategies for treatment of this disease.
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Affiliation(s)
- Domenico Birra
- UOC of Internal Medicine - Rheumatology Outpatients Unit, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi D'Aragona, Via San Leonardo 1, Salerno, Italy.
| | | | - Luigi Landolfi
- UOC of Internal Medicine, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi D'Aragona, Salerno, Italy
| | - Anna Merchionda
- UOC of Internal Medicine - Rheumatology Outpatients Unit, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi D'Aragona, Via San Leonardo 1, Salerno, Italy
| | - Gabriella Loi
- UOC of Internal Medicine - Rheumatology Outpatients Unit, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi D'Aragona, Via San Leonardo 1, Salerno, Italy
| | | | - Gaetano Licata
- Dermatology Unit, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Luca Quartuccio
- Clinic of Rheumatology, Department of Medicine (DAME), ASUFC, University of Udine, Udine, Italy
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, University of Salerno, Fisciano, Italy
| | - Paolo Moscato
- UOC of Internal Medicine - Rheumatology Outpatients Unit, Azienda Ospedaliero-Universitaria San Giovanni di Dio e Ruggi D'Aragona, Via San Leonardo 1, Salerno, Italy
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35
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Lin HH, Chen HL, Janapatla RP, Chen CL, Chiu CH. Hyperexpression of type III secretion system of Salmonella Typhi linked to a higher cytotoxic effect to monocyte-derived macrophages by activating inflammasome. Microb Pathog 2020; 146:104222. [PMID: 32387390 DOI: 10.1016/j.micpath.2020.104222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/16/2020] [Accepted: 04/20/2020] [Indexed: 12/21/2022]
Abstract
Inflammasome activation is an important host response to infectious diseases, but the difference in inflammasome activation between typhoid fever and non-typhoidal Salmonella infection has been rarely studied. To determine whether inflammasome activation in macrophages after S. Typhi and S. Typhimurium infection is different, we measured pyroptosis, caspase-1 activation, and IL-1β secretion in monocyte-derived macrophages infected with S. Typhi or S. Typhimurium both in vitro and ex vivo. The role of Vi capsule and virulence genes in Salmonella pathogenicity island-1 (SPI-1), belonging to type III secretion system, was also examined. S. Typhi caused more pyroptosis, caspase-1 activation, and IL-1β production than S. Typhimurium did, predominantly within 2 h of infection, in the context of high number of infecting bacteria. Mutagenesis and complementation experiments confirmed that SPI-1 effectors but not Vi were associated with greater inflammasome activation. The expression levels of invA and hilA were significantly higher in S. Typhi than in S. Typhimurium at early log phase in SPI-1 environment. Thus, S. Typhi, relative to its non-typhoidal counterpart, S. Typhimurium, induces greater SPI-1-dependent inflammasome activation in monocyte-derived macrophages. This finding may explain why S. Typhi causes a hyperinflammatory state at bacteremic stage in typhoid fever.
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Affiliation(s)
- Hsin-Hung Lin
- Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hsiu-Ling Chen
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | | | - Chyi-Liang Chen
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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36
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Caspase-11 promotes allergic airway inflammation. Nat Commun 2020; 11:1055. [PMID: 32103022 PMCID: PMC7044193 DOI: 10.1038/s41467-020-14945-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 02/12/2020] [Indexed: 11/29/2022] Open
Abstract
Activated caspase-1 and caspase-11 induce inflammatory cell death in a process termed pyroptosis. Here we show that Prostaglandin E2 (PGE2) inhibits caspase-11-dependent pyroptosis in murine and human macrophages. PGE2 suppreses caspase-11 expression in murine and human macrophages and in the airways of mice with allergic inflammation. Remarkably, caspase-11-deficient mice are strongly resistant to developing experimental allergic airway inflammation, where PGE2 is known to be protective. Expression of caspase-11 is elevated in the lung of wild type mice with allergic airway inflammation. Blocking PGE2 production with indomethacin enhances, whereas the prostaglandin E1 analog misoprostol inhibits lung caspase-11 expression. Finally, alveolar macrophages from asthma patients exhibit increased expression of caspase-4, a human homologue of caspase-11. Our findings identify PGE2 as a negative regulator of caspase-11-driven pyroptosis and implicate caspase-4/11 as a critical contributor to allergic airway inflammation, with implications for pathophysiology of asthma. Caspase 11 activation involves transcriptional upregulation and proteolytic cleavage. Here the authors show that prostaglandin E2 prevents caspase-11-mediated pyroptosis, blocking caspase-11 mRNA and protein upregulation in macrophages and in vivo, and that mice lacking caspase-11 are strongly protected from allergic airway inflammation.
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37
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Yin Y, Wang J, Zhao X, Wu X, Zou H, Qin Z, Cao J. Overexpressed FOXO3 improves inflammatory status in mice by affecting NLRP3-mediated cell coronation in necrotizing colitis mice. Biomed Pharmacother 2020; 125:109867. [PMID: 32058213 DOI: 10.1016/j.biopha.2020.109867] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To investigate the relationship between FOXO3 overexpression and NLRP3 and explore the effect of FOXO3 on necrotizing colitis. METHODS 100 clean grade newborn SD (Sprague Dawley) rats were randomly divided into 4 groups: NEC group, NEC + FOXO3a group, NEC + NC group and control group. NEC rat model was established by hypoxia + hypothermia stimulation; HE staining was used for detection of the inflammation of intestinal tissue. The histological scores of intestinal tissues were histologically scored, generally, there were three types of inflammatory scoring systems including anatomically based systems, severity-based systems and quality of life systems (Lim et al., 2015) and in this study we utilized severity-based systems by HE staining. Human intestinal epithelial cell line was transfected with recombinant plasmid overexpressing FOXO3a and recombinant plasmid overexpressing NLRP3, and divided into control group, LPS group, LPS + NC group, LPS + FOXO3a group and LPS + FOXO3a + NLRP3 group; Caspase-1 was used for the detection of pyroptosis. The expressions of FOXO3a, NLRP3, cleaved Caspase-1 and the expression of TLR4 in TLR4 signaling pathway were detected by RT-qPCR and WB. IL-1β, IL-6, IL-18 and TNF-α were detected by ELISA. RESULTS (1) FOXO3a is under-expressed and NLRP3 is highly expressed in NEC neonatal rat intestinal tissue. (2) The inflammatory condition of intestinal tissue in NEC + FOXO3a group was improved compared with NEC group (P < 0.05). (3) FOXO3a was highly expressed in NEC + FOXO3a group. The expression of IL-1β, IL-6, IL-18, SOD and MDA in NEC + FOXO3a group was lower than that in NEC group. (4) The expression of IL-1β, IL-6, IL-18, SOD and MDA in intestinal epithelial cells of LPS + FOXO3a group was lower than other groups. (5) Overexpression of FOXO3a inhibits LPS-induced pyroptotic cell death in intestinal epithelial cells by inhibiting NLRP3. CONCLUSION Overexpression of FOXO3 in mice with necrotizing colitis can improve inflammatory conditions in mice by affecting NLRP3-mediated cell caking.
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Affiliation(s)
- Yiyu Yin
- Department of General Surgery, Xuzhou Children's Hospital, Xuzhou Medical University, China
| | - Jian Wang
- Department of General Surgery, Children's Hospital of Soochow University, China
| | - Xiaodong Zhao
- Department of Paediatrics, Nantong First People's Hospital, China
| | - Xiaole Wu
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, China
| | - Huaxin Zou
- Department of General Surgery, Xuzhou Children's Hospital, Xuzhou Medical University, China
| | - Zhenfang Qin
- Department of General Surgery, Xuzhou Children's Hospital, Xuzhou Medical University, China
| | - Junhua Cao
- Department of Emergency Medicine, Xuzhou Children's Hospital, Xuzhou Medical University, China.
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Liang F, Zhang F, Zhang L, Wei W. The advances in pyroptosis initiated by inflammasome in inflammatory and immune diseases. Inflamm Res 2020; 69:159-166. [PMID: 31932850 DOI: 10.1007/s00011-020-01315-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/18/2019] [Accepted: 01/03/2020] [Indexed: 12/24/2022] Open
Abstract
Pyroptosis is a programmed and inflammatory cell death initiated by inflammasome. During pyroptosis, cytosolic pattern recognition receptors, apoptosis-associated speck-like protein and pro-Caspase-1 form activated inflammasome together. Caspase-1 activated by inflammasome results in generating an N-terminal cleavage product of gasdermin D (GSDMD), which is a major executor of pyroptosis. As a consequence of pyroptosis, a large number of pro-inflammatory cytokines are released including IL-1β and IL-18. Nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) and absent in melanoma 2 (AIM2)-like receptors (ALRs) belong to cytosolic pattern recognition receptors and assemble inflammasomes by detecting host cell damage signals. Pyroptosis pathways are divided into canonical and non-canonical pathways according to the identification of damage signals by cytoplasmic protein sensors. Pyroptosis not only plays an important role in infection, but also plays a vital role in inflammatory immune diseases. This article reviews the advances research of pyroptosis initiated by inflammasome in inflammatory and immune diseases.
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Affiliation(s)
- Faqin Liang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine (Anhui Medical University), Ministry of Education, Anti-Inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Feng Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine (Anhui Medical University), Ministry of Education, Anti-Inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Lingling Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine (Anhui Medical University), Ministry of Education, Anti-Inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine (Anhui Medical University), Ministry of Education, Anti-Inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China.
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Miller DR, Cramer SD, Thorburn A. The interplay of autophagy and non-apoptotic cell death pathways. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 352:159-187. [PMID: 32334815 DOI: 10.1016/bs.ircmb.2019.12.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Autophagy, the process of macromolecular degradation through the lysosome, has been extensively studied for the past decade or two. Autophagy can regulate cell death, especially apoptosis, through selective degradation of both positive and negative apoptosis regulators. However, multiple other programmed cell death pathways exist. As knowledge of these other types of cell death expand, it has been suggested that they also interact with autophagy. In this review, we discuss the molecular mechanisms that comprise three non-apoptotic forms of cell death (necroptosis, pyroptosis and ferroptosis) focusing on how the autophagy machinery regulates these different cell death mechanisms through (i) its degradative functions, i.e., true autophagy, and (ii) other non-degradative functions of the autophagy machinery such as serving as a signaling scaffold or by participating in other autophagy-independent cellular processes.
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Affiliation(s)
- Dannah R Miller
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Scott D Cramer
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Andrew Thorburn
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.
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Cheng Y, Cao L. Autophagy and Tumor Cell Death. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1207:339-349. [PMID: 32671758 DOI: 10.1007/978-981-15-4272-5_23] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There exists an intricate collaboration between autophagy and other types of PCD. These processes can be activated in parallel or sequentially, and have either common or opposite objectives. Determining which interactions between them are important in the regulation of cell death. A comprehensive and in-depth study of the crosstalk between autophagy and apoptosis, necroptosis, or pyroptosis will bring breakthroughs in the treatment of many diseases, including cancer, cardiovascular disease, and neurodegenerative disorders.
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Affiliation(s)
- Yan Cheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan Province, China
| | - Liu Cao
- Institute of Translational Medicine, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning Province, China.
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Larabi A, Barnich N, Nguyen HTT. New insights into the interplay between autophagy, gut microbiota and inflammatory responses in IBD. Autophagy 2020; 16:38-51. [PMID: 31286804 PMCID: PMC6984609 DOI: 10.1080/15548627.2019.1635384] [Citation(s) in RCA: 415] [Impact Index Per Article: 103.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/11/2019] [Accepted: 06/19/2019] [Indexed: 02/07/2023] Open
Abstract
One of the most significant challenges of inflammatory bowel disease (IBD) research is to understand how alterations in the symbiotic relationship between the genetic composition of the host and the intestinal microbiota, under impact of specific environmental factors, lead to chronic intestinal inflammation. Genome-wide association studies, followed by functional studies, have identified a role for numerous autophagy genes in IBD, especially in Crohn disease. Studies using in vitro and in vivo models, in addition to human clinical studies have revealed that autophagy is pivotal for intestinal homeostasis maintenance, gut ecology regulation, appropriate intestinal immune responses and anti-microbial protection. This review describes the latest researches on the mechanisms by which dysfunctional autophagy leads to disrupted intestinal epithelial function, gut dysbiosis, defect in anti-microbial peptide secretion by Paneth cells, endoplasmic reticulum stress response and aberrant immune responses to pathogenic bacteria. A better understanding of the role of autophagy in IBD pathogenesis may provide better sub-classification of IBD phenotypes and novel approaches for disease management.Abbreviations: AIEC: adherent-invasive Escherichia coli; AMPK: AMP-activated protein kinase; ATF6: activating transcription factor 6; ATG: autophagy related; Atg16l1[ΔIEC] mice: mice with Atg16l1 depletion specifically in intestinal epithelial cells; Atg16l1[HM] mice: mice hypomorphic for Atg16l1 expression; BCL2: B cell leukemia/lymphoma 2; BECN1: beclin 1, autophagy related; CALCOCO2: calcium binding and coiled-coil domain 2; CASP: caspase; CD: Crohn disease; CGAS: cyclic GMP-AMP synthase; CHUK/IKKA: conserved helix-loop-helix ubiquitous kinase; CLDN2: claudin 2; DAPK1: death associated protein kinase 1; DCs: dendritic cells; DSS: dextran sulfate sodium; EIF2A: eukaryotic translation initiation factor 2A; EIF2AK: eukaryotic translation initiation factor 2 alpha kinase; ER: endoplasmic reticulum; ERBIN: Erbb2 interacting protein; ERN1/IRE1A: ER to nucleus signaling 1; FNBP1L: formin binding protein 1-like; FOXP3: forkhead box P3; GPR65: G-protein coupled receptor 65; GSK3B: glycogen synthase kinase 3 beta; IBD: inflammatory bowel disease; IECs: intestinal epithelial cells; IFN: interferon; IL: interleukin; IL10R: interleukin 10 receptor; IRGM: immunity related GTPase M; ISC: intestinal stem cell; LAMP1: lysosomal-associated membrane protein 1; LAP: LC3-associated phagocytosis; MAP1LC3B: microtubule-associated protein 1 light chain 3 beta; LPS: lipopolysaccharide; LRRK2: leucine-rich repeat kinase 2; MAPK: mitogen-activated protein kinase; MHC: major histocompatibility complex; MIF: macrophage migration inhibitory factor; MIR/miRNA: microRNA; MTMR3: myotubularin related protein 3; MTOR: mechanistic target of rapamycin kinase; MYD88: myeloid differentiation primary response gene 88; NLRP3: NLR family, pyrin domain containing 3; NOD2: nucleotide-binding oligomerization domain containing 2; NPC: Niemann-Pick disease type C; NPC1: NPC intracellular cholesterol transporter 1; OMVs: outer membrane vesicles; OPTN: optineurin; PI3K: phosphoinositide 3-kinase; PRR: pattern-recognition receptor; PTPN2: protein tyrosine phosphatase, non-receptor type 2; PTPN22: protein tyrosine phosphatase, non-receptor type 22 (lymphoid); PYCARD/ASC: PYD and CARD domain containing; RAB2A: RAB2A, member RAS oncogene family; RELA: v-rel reticuloendotheliosis viral oncogene homolog A (avian); RIPK2: receptor (TNFRSF)-interacting serine-threonine kinase 2; ROS: reactive oxygen species; SNPs: single nucleotide polymorphisms; SQSTM1: sequestosome 1; TAX1BP1: Tax1 binding protein 1; Th: T helper 1; TIRAP/TRIF: toll-interleukin 1 receptor (TIR) domain-containing adaptor protein; TLR: toll-like receptor; TMEM173/STING: transmembrane protein 173; TMEM59: transmembrane protein 59; TNF/TNFA: tumor necrosis factor; Treg: regulatory T; TREM1: triggering receptor expressed on myeloid cells 1; UC: ulcerative colitis; ULK1: unc-51 like autophagy activating kinase 1; WT: wild-type; XBP1: X-box binding protein 1; XIAP: X-linked inhibitor of apoptosis.
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Affiliation(s)
- Anaïs Larabi
- M2iSH, UMR 1071 Inserm, INRA USC 2018, CRNH, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Barnich
- M2iSH, UMR 1071 Inserm, INRA USC 2018, CRNH, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Hang Thi Thu Nguyen
- M2iSH, UMR 1071 Inserm, INRA USC 2018, CRNH, University of Clermont Auvergne, Clermont-Ferrand, France
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Yao Y, Zang Y, Qu J, Tang M, Zhang T. The Toxicity Of Metallic Nanoparticles On Liver: The Subcellular Damages, Mechanisms, And Outcomes. Int J Nanomedicine 2019; 14:8787-8804. [PMID: 31806972 PMCID: PMC6844216 DOI: 10.2147/ijn.s212907] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 10/21/2019] [Indexed: 12/18/2022] Open
Abstract
Metallic nanoparticles (MNPs) are new engineering materials with broad prospects for biomedical applications; thus, their biosafety has drawn great concern. The liver is the main detoxification organ of vertebrates. However, many issues concerning the interactions between MNPs and biological systems (cells and tissues) are unclear, particularly the toxic effects of MNPs on hepatocytes and other liver cells. Numerous researchers have shown that some MNPs can induce decreased cell survival rate, production of reactive oxygen species (ROS), mitochondrial damage, DNA strand breaks, and even autophagy, pyroptosis, apoptosis, or other forms of cell death. Our review focuses on the recent researches on the liver toxicity of MNPs and its mechanisms at cellular and subcellular levels to provide a scientific basis for the subsequent hepatotoxicity studies of MNPs.
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Affiliation(s)
- Ying Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing210009, People’s Republic of China
| | - Yiteng Zang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing210009, People’s Republic of China
| | - Jing Qu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing210009, People’s Republic of China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing210009, People’s Republic of China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing210009, People’s Republic of China
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Li C, Yin W, Yu N, Zhang D, Zhao H, Liu J, Liu J, Pan Y, Lin L. miR-155 promotes macrophage pyroptosis induced by Porphyromonas gingivalis through regulating the NLRP3 inflammasome. Oral Dis 2019; 25:2030-2039. [PMID: 31529565 DOI: 10.1111/odi.13198] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/26/2019] [Accepted: 09/11/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The aim of this study is to detect pyroptosis in macrophages stimulated with Porphyromonas gingivalis and elucidate the mechanism by which P. gingivalis induces pyroptosis in macrophages. METHODS The immortalized human monocyte cell line U937 was stimulated with P. gingivalis W83. Flow cytometry was carried out to detect pyroptosis in macrophages. The expression of miR-155 was detected by real-time PCR and inhibited using RNAi. Suppressor of cytokine signaling (SOCS) 1, cleaved GSDMD, caspase (CAS)-1, caspase-11, apoptosis-associated speck-like protein (ASC), and NOD-like receptor protein 3 (NLRP3) were detected by Western blotting, and IL-1β and IL-18 were detected by ELISA. RESULTS The rate of pyroptosis in macrophages and the expression of miR-155 increased upon stimulation with P. gingivalis and pyroptosis rate decreased when miR-155 was silenced. GSDMD-NT, CAS-11, CAS-1, ASC, NLRP3, IL-1β, and IL-18 levels increased, but SOCS1 decreased in U937 cells after stimulated with P. gingivalis. These changes were weakened in P. gingivalis-stimulated U937 macrophages transfected with lentiviruses carrying miR-155 shRNA compared to those transfected with non-targeting control sequence. However, there was no significant difference in ASC expression between P. gingivalis-stimulated shCont and shMiR-155 cells. CONCLUSIONS Porphyromonas gingivalis promotes pyroptosis in macrophages during early infection. miR-155 is involved in this process through regulating the NLRP3 inflammasome.
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Affiliation(s)
- Chen Li
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Wanting Yin
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,MALO CLINIC, Shenyang, China
| | - Ning Yu
- Department of Periodontics and Oral Medicine, University of Michigan at Ann Arbor, MI, USA
| | - Dongmei Zhang
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Liaoning Province Key Laboratory of Oral Diseases, Shenyang, China
| | - Haijiao Zhao
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Jingbo Liu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Junchao Liu
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China.,Liaoning Province Translational Medicine Research Center of Oral Diseases, Shenyang, China
| | - Yaping Pan
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Li Lin
- Department of Periodontics, School of Stomatology, China Medical University, Shenyang, China
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Yu X, Hao M, Liu Y, Ma X, Lin W, Xu Q, Zhou H, Shao N, Kuang H. Liraglutide ameliorates non-alcoholic steatohepatitis by inhibiting NLRP3 inflammasome and pyroptosis activation via mitophagy. Eur J Pharmacol 2019; 864:172715. [PMID: 31593687 DOI: 10.1016/j.ejphar.2019.172715] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/26/2019] [Accepted: 10/01/2019] [Indexed: 02/06/2023]
Abstract
Non-alcoholic steatohepatitis (NASH) is a key step in the progression of non-alcoholic fatty liver disease (NAFLD), which causes serious health problems worldwide. The nucleotide-binding oligomerization domain, leucine-rich repeat-containing receptor-containing pyrin domain 3 (NLRP3) inflammasome and pyroptosis play crucial roles in the progression of NASH. Our team has provided clinical evidence of the effects of glucagon-like peptide-1 (GLP-1) on the improvement in liver function and histological resolution of NAFLD. Preliminary work has demonstrated that GLP-1 inhibited NLRP3 inflammasome activation in a mouse model of NAFLD. We further explored the potential molecular mechanisms underlying the anti-inflammatory effect of liraglutide, a long-acting GLP-1 analog, in the treatment of NASH. We established a HepG2 cell model of NASH using double stimulation with palmitic acid and lipopolysaccharide to assess NLRP3 inflammasome and pyroptotic cell activity and to evaluate mitochondrial function and mitophagy. Liraglutide reduced lipid accumulation, inhibited NLRP3 inflammasome and pyroptosis activation, attenuated mitochondrial dysfunction and reactive oxygen species generation, augmented mitophagy in hepatocytes. Mitophagy inhibition with 3-methyladenine/PINK1-directed siRNA weakened the liraglutide-mediated suppression of inflammatory injury. We propose that liraglutide suppresses NLRP3 inflammasome-induced hepatocyte pyroptosis via mitophagy to slow the progression of NASH.
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Affiliation(s)
- Xinyang Yu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ming Hao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yu Liu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xuefei Ma
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Wenjian Lin
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Qian Xu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Huanran Zhou
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ning Shao
- Department of Endocrinology, The First Hospital of Harbin, Harbin, Heilongjiang, China
| | - HongYu Kuang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
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Yu P, Wang HY, Tian M, Li AX, Chen XS, Wang XL, Zhang Y, Cheng Y. Eukaryotic elongation factor-2 kinase regulates the cross-talk between autophagy and pyroptosis in doxorubicin-treated human melanoma cells in vitro. Acta Pharmacol Sin 2019; 40:1237-1244. [PMID: 30914761 DOI: 10.1038/s41401-019-0222-z] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/21/2019] [Indexed: 01/07/2023] Open
Abstract
Eukaryotic elongation factor-2 kinase (eEF-2K), a negative regulator of protein synthesis, has been shown to play an important role in modulating autophagy and apoptosis in tumor cells under various stresses. In this study, we investigated the regulatory role of eEF-2K in pyroptosis (a new form of programmed necrosis) in doxorubicin-treated human melanoma cells. We found that doxorubicin (0.5-5 μmol/L) induced pyroptosis in melanoma cell lines SK-MEL-5, SK-MEL-28, and A-375 with high expression of DFNA5, but not in human breast cancer cell line MCF-7 with little expression of DFNA5. On the other hand, doxorubicin treatment activated autophagy in the melanoma cells; inhibition of autophagy by transfecting the cells with siRNA targeting Beclin1 or by pretreatment with chloroquine (20 μmol/L) significantly augmented pyroptosis, thus sensitizing the melanoma cells to doxorubicin. We further demonstrated that doxorubicin treatment activated eEF-2K in the melanoma cells, and silencing of eEF-2K blunted autophagic responses, but promoted doxorubicin-induced pyroptotic cell death. Taken together, the above results demonstrate that eEF-2K dictates the cross-talk between pyroptosis and autophagy in doxorubicin-treated human melanoma cells; suppression of eEF-2K results in inhibiting autophagy and augmenting pyroptosis, thus modulating the sensitivity of melanoma cells to doxorubicin, suggesting that targeting eEF-2K may reinforce the antitumor efficacy of doxorubicin, offering a new insight into tumor chemotherapy.
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Douzandegan Y, Tahamtan A, Gray Z, Nikoo HR, Tabarraei A, Moradi A. Cell Death Mechanisms in Esophageal Squamous Cell Carcinoma Induced by Vesicular Stomatitis Virus Matrix Protein. Osong Public Health Res Perspect 2019; 10:246-252. [PMID: 31497497 PMCID: PMC6711713 DOI: 10.24171/j.phrp.2019.10.4.08] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objectives Vesicular stomatitis virus (VSV) is under development as an oncolytic virus due to its preferential replication in cancer cells and oncolytic activity, however the viral components responsible have not yet been determined. In this study the effects of VSV wild-type (wt) and M51R-mutant matrix proteins (M51R-mMP) on apoptosis, pyroptosis, necroptosis, and autophagy pathways, in an esophagus cancer cell line (KYSE-30) were investigated. Methods The KYSE-30 cells were transfected with pcDNA3.1 plasmids encoding wt or M51R-mMP, and apoptosis, pyroptosis, necroptosis, and autophagy were evaluated 48 and 72 hours after transfection. Results KYSE-30 cells transfected with VSV wt and M51R-mMPs significantly reduced cell viability to < 50% at 72 hours post-transfection. M51R-MP significantly increased the concentration of caspase-8 and caspase-9 at 48 and 72 hours post-transfection, respectively ( p < 0.05). In contrast, no significant changes were detected following transfection with the VSV wt plasmid. Moreover, VSV wt and M51R-mMP transfected cells did not change the expression of caspase-3. VSV wt and M51R-mMPs did not mMP change caspase-1 expression (a marker of pyroptosis) at 48 and 72 hours post-transfection. However, M51R-mMP and VSV wt transfected cells significantly increased RIP-1 (a marker of necroptosis) expression at 72 hours post-infection ( p < 0.05). Beclin-1, a biomarker of autophagy, was also induced by transfection with VSV wt or M51R-mMPs at 48 hours post-transfection. Conclusion The results in this study indicated that VSV exerts oncolytic activity in KYSE-30 tumor cells through different cell death pathways, suggesting that M51R-mMP may potentially be used to enhance oncolysis.
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Affiliation(s)
- Yousef Douzandegan
- Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Alireza Tahamtan
- Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran.,Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran
| | - Zahra Gray
- Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Hadi Razavi Nikoo
- Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Alijan Tabarraei
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdolvahab Moradi
- Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
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Zhou CB, Fang JY. The role of pyroptosis in gastrointestinal cancer and immune responses to intestinal microbial infection. Biochim Biophys Acta Rev Cancer 2019; 1872:1-10. [DOI: 10.1016/j.bbcan.2019.05.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/18/2019] [Accepted: 05/01/2019] [Indexed: 01/04/2023]
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An P, Xie J, Qiu S, Liu Y, Wang J, Xiu X, Li L, Tang M. Hispidulin exhibits neuroprotective activities against cerebral ischemia reperfusion injury through suppressing NLRP3-mediated pyroptosis. Life Sci 2019; 232:116599. [PMID: 31247210 DOI: 10.1016/j.lfs.2019.116599] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 12/25/2022]
Abstract
AIM Ischemia/reperfusion (I/R) injury is the major cause of neurological deficit following stroke. Our previous study showed neuroprotective effects of hispidulin against cerebral ischemia reperfusion injury (IRI). In this study, we further examined the involvement of pyroptosis in this neuroprotective function. MATERIALS AND METHODS IRI was simulated in a rat model by middle cerebral artery occlusion (MCAO) surgery, and the animals were treated with different doses of hispidulin. The neurological function of the rats was evaluated by the neural function defect score (NFDS), balance beam test and limb placement test. The infarct volume and brain water content were measured 72 h following IRI. Neuronal cell survival and pyroptosis in the ischemic cortex were respectively detected by Nissl staining and TUNEL assay. The relative expression of pyroptosis markers was determined by qRT-PCR, Western blotting and ELISA as appropriate. IRI was simulated in vitro in primary cerebral astrocytes using the OGD/R procedure. AMPKα was blocked genetically or pharmacologically using siRNA and compound C respectively. CCK-8 and LDH release assays were performed using suitable kits. RESULTS Hispidulin improved the neurological symptoms of the rats after IRI, in addition to decreasing the infarct size and brain edema. Mechanistically, hispidulin exerted its neuroprotective effects in vivo and in vitro by suppressing NLRP3-mediated pyroptosis by modulating the AMPK/GSK3β signaling pathway. CONCLUSION Hispidulin is a neuroprotective agent with clinical potential against IR-induced neurological injury.
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Affiliation(s)
- Pengpeng An
- The Affiliated Qingdao Hiser Hospital of Qingdao University (Qingdao Hospital of Traditional Chinese Medicine), Qingdao, China
| | - Jing Xie
- Qingdao University Medical College, Qingdao, China
| | - Sha Qiu
- Qingdao Central Hospital, Qingdao, China
| | - Yongji Liu
- The Affiliated Qingdao Hiser Hospital of Qingdao University (Qingdao Hospital of Traditional Chinese Medicine), Qingdao, China
| | - Jianing Wang
- The Affiliated Qingdao Hiser Hospital of Qingdao University (Qingdao Hospital of Traditional Chinese Medicine), Qingdao, China
| | - Xiaohui Xiu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ling Li
- Qingdao University Medical College, Qingdao, China.
| | - Ming Tang
- The Affiliated Qingdao Hiser Hospital of Qingdao University (Qingdao Hospital of Traditional Chinese Medicine), Qingdao, China.
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Karunakaran I, Alam S, Jayagopi S, Frohberger SJ, Hansen JN, Kuehlwein J, Hölbling BV, Schumak B, Hübner MP, Gräler MH, Halle A, van Echten-Deckert G. Neural sphingosine 1-phosphate accumulation activates microglia and links impaired autophagy and inflammation. Glia 2019; 67:1859-1872. [PMID: 31231866 DOI: 10.1002/glia.23663] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
Abstract
Microglia mediated responses to neuronal damage in the form of neuroinflammation is a common thread propagating neuropathology. In this study, we investigated the microglial alterations occurring as a result of sphingosine 1-phosphate (S1P) accumulation in neural cells. We evidenced increased microglial activation in the brains of neural S1P-lyase (SGPL1) ablated mice (SGPL1fl/fl/Nes ) as shown by an activated and deramified morphology and increased activation markers on microglia. In addition, an increase of pro-inflammatory cytokines in sorted and primary cultured microglia generated from SGPL1 deficient mice was noticed. Further, we assessed autophagy, one of the major mechanisms in the brain that keeps inflammation in check. Indeed, microglial inflammation was accompanied by defective microglial autophagy in SGPL1 ablated mice. Rescuing autophagy by treatment with rapamycin was sufficient to decrease interleukin 6 (IL-6) but not tumor necrosis factor (TNF) secretion in cultured microglia. Rapamycin mediated decrease of IL-6 secretion suggests a particular mechanistic target of rapamycin (mTOR)-IL-6 link and appeared to be microglia specific. Using pharmacological inhibitors of the major receptors of S1P expressed in the microglia, we identified S1P receptor 2 (S1PR2) as the mediator of both impaired autophagy and proinflammatory effects. In line with these results, the addition of exogenous S1P to BV2 microglial cells showed similar effects as those observed in the genetic knock out of SGPL1 in the neural cells. In summary, we show a novel role of the S1P-S1PR2 axis in the microglia of mice with neural-targeted SGPL1 ablation and in BV2 microglial cell line exogenously treated with S1P.
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Affiliation(s)
- Indulekha Karunakaran
- LIMES Institute, Membrane Biology & Lipid Biochemistry, University of Bonn, Germany.,Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Shah Alam
- LIMES Institute, Membrane Biology & Lipid Biochemistry, University of Bonn, Germany
| | - Surendar Jayagopi
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Stefan J Frohberger
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Jan N Hansen
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
| | - Janina Kuehlwein
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Benedikt V Hölbling
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
| | - Beatrix Schumak
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Marc P Hübner
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital of Bonn, Bonn, Germany
| | - Markus H Gräler
- Department of Anaesthesiology and Intensive Care Medicine, Center for Sepsis Control and Care (CSCC), and the Center for Molecular Biomedicine (CMB), Jena University Hospital, Jena, Germany
| | - Annett Halle
- German Center for Neurodegenerative Diseases, DZNE, Bonn, Germany and Center of Advanced European Studies and Research, Bonn, Germany
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Inflammasomes, Autophagy, and Cell Death: The Trinity of Innate Host Defense against Intracellular Bacteria. Mediators Inflamm 2019; 2019:2471215. [PMID: 30728749 PMCID: PMC6341260 DOI: 10.1155/2019/2471215] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 12/19/2018] [Indexed: 01/17/2023] Open
Abstract
Inflammasome activation is an innate host defense mechanism initiated upon sensing pathogens or danger in the cytosol. Both autophagy and cell death are cell autonomous processes important in development, as well as in host defense against intracellular bacteria. Inflammasome, autophagy, and cell death pathways can be activated by pathogens, pathogen-associated molecular patterns (PAMPs), cell stress, and host-derived damage-associated molecular patterns (DAMPs). Phagocytosis and toll-like receptor (TLR) signaling induce reactive oxygen species (ROS), type I IFN, NFκB activation of proinflammatory cytokines, and the mitogen-activated protein kinase cascade. ROS and IFNγ are also prominent inducers of autophagy. Pathogens, PAMPs, and DAMPs activate TLRs and intracellular inflammasomes, inducing apoptotic and inflammatory caspases in a context-dependent manner to promote various forms of cell death to eliminate pathogens. Common downstream signaling molecules of inflammasomes, autophagy, and cell death pathways interact to initiate appropriate measures against pathogens and determine host survival as well as pathological consequences of infection. The integration of inflammasome activation, autophagy, and cell death is central to pathogen clearance. Various pathogens produce virulence factors to control inflammasomes, subvert autophagy, and modulate host cell death in order to evade host defense. This review highlights the interaction of inflammasomes, autophagy, and host cell death pathways in counteracting Burkholderia pseudomallei, the causative agent of melioidosis. Contrasting evasion strategies used by B. pseudomallei, Mycobacterium tuberculosis, and Legionella pneumophila to avoid and dampen these innate immune responses will be discussed.
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