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Gitlin AD, Maltzman A, Kanno Y, Heger K, Reja R, Schubert AF, Wierciszewski LJ, Pantua H, Kapadia SB, Harris SF, Webster JD, Newton K, Dixit VM. N4BP1 coordinates ubiquitin-dependent crosstalk within the IκB kinase family to limit Toll-like receptor signaling and inflammation. Immunity 2024; 57:973-986.e7. [PMID: 38697117 PMCID: PMC11096006 DOI: 10.1016/j.immuni.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/15/2023] [Accepted: 04/08/2024] [Indexed: 05/04/2024]
Abstract
The ubiquitin-binding endoribonuclease N4BP1 potently suppresses cytokine production by Toll-like receptors (TLRs) that signal through the adaptor MyD88 but is inactivated via caspase-8-mediated cleavage downstream of death receptors, TLR3, or TLR4. Here, we examined the mechanism whereby N4BP1 limits inflammatory responses. In macrophages, deletion of N4BP1 prolonged activation of inflammatory gene transcription at late time points after TRIF-independent TLR activation. Optimal suppression of inflammatory cytokines by N4BP1 depended on its ability to bind polyubiquitin chains, as macrophages and mice-bearing inactivating mutations in a ubiquitin-binding motif in N4BP1 displayed increased TLR-induced cytokine production. Deletion of the noncanonical IκB kinases (ncIKKs), Tbk1 and Ikke, or their adaptor Tank phenocopied N4bp1 deficiency and enhanced macrophage responses to TLR1/2, TLR7, or TLR9 stimulation. Mechanistically, N4BP1 acted in concert with the ncIKKs to limit the duration of canonical IκB kinase (IKKα/β) signaling. Thus, N4BP1 and the ncIKKs serve as an important checkpoint against over-exuberant innate immune responses.
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Affiliation(s)
- Alexander D Gitlin
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA.
| | - Allie Maltzman
- Physiological Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Yuzuka Kanno
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Klaus Heger
- Cancer Immunology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Rohit Reja
- Oncology Bioinformatics, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Alexander F Schubert
- Structural Biology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Linsey J Wierciszewski
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Homer Pantua
- Infectious Diseases, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Sharookh B Kapadia
- Infectious Diseases, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Seth F Harris
- Structural Biology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Joshua D Webster
- Pathology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Kim Newton
- Physiological Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Vishva M Dixit
- Physiological Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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Mendoza-Mari Y, Rai V, Radwan MM, Brazdzionis J, Connett DA, Miulli DE, Agrawal DK. Modulation of Inflammatory Response by Electromagnetic Field Stimulation in Traumatic Brain Injury in Yucatan Swine. J Surg Res (Houst) 2024; 7:20-40. [PMID: 38389906 PMCID: PMC10883333 DOI: 10.26502/jsr.10020338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Traumatic brain injury is a leading cause of disability and death worldwide and represents a high economic burden for families and national health systems. After mechanical impact to the head, the first stage of the damage comprising edema, physical damage, and cell loss gives rise to a second phase characterized by glial activation, increased oxidative stress and excitotoxicity, mitochondrial damage, and exacerbated neuroinflammatory state, among other molecular calamities. Inflammation strongly influences the molecular events involved in the pathogenesis of TBI. Therefore, several components of the inflammatory cascade have been targeted in experimental therapies. Application of Electromagnetic Field (EMF) stimulation has been found to be effective in some inflammatory conditions. However, its effect in the neuronal recovery after TBI is not known. In this pilot study, Yucatan miniswine were subjected to TBI using controlled cortical impact approach. EMF stimulation via a helmet was applied immediately or two days after mechanical impact. Three weeks later, inflammatory markers were assessed in the brain tissues of injured and contralateral non-injured areas of control and EMF-treated animals by histomorphometry, immunohistochemistry, RT-qPCR, Western blot, and ELISA. Our results revealed that EMF stimulation induced beneficial effect with the preservation of neuronal tissue morphology as well as the reduction of inflammatory markers at the transcriptional and translational levels. Immediate EMF application showed better resolution of inflammation. Although further studies are warranted, our findings contribute to the notion that EMF stimulation could be an effective therapeutic approach in TBI patients.
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Affiliation(s)
- Yssel Mendoza-Mari
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - Vikrant Rai
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - Mohamed M Radwan
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - James Brazdzionis
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - David A Connett
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - Dan E Miulli
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - Devendra K Agrawal
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
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Zheng Q, Wang D, Lin R, Chen Y, Xu Z, Xu W. Quercetin is a Potential Therapy for Rheumatoid Arthritis via Targeting Caspase-8 Through Ferroptosis and Pyroptosis. J Inflamm Res 2023; 16:5729-5754. [PMID: 38059150 PMCID: PMC10697095 DOI: 10.2147/jir.s439494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/14/2023] [Indexed: 12/08/2023] Open
Abstract
Background Rheumatoid arthritis (RA) is one of the most common chronic inflammatory autoimmune diseases. However, the underlying molecular mechanisms of its pathogenesis are unknown. This study aimed to identify the common biomarkers of ferroptosis and pyroptosis in RA and screen potential drugs. Methods The RA-related differentially expressed genes (DEGs) in GSE55235 were screened by R software and intersected with ferroptosis and pyroptosis gene libraries to obtain differentially expressed ferroptosis-related genes (DEFRGs) and differentially expressed pyroptosis-related genes (DEPRGs). We performed Gene Ontology (GO), Kyoto Encyclopedia of the Genome (KEGG), ClueGO, and Protein-Protein Interaction (PPI) analysis for DEFRGs and DEPRGs and validated them by machine learning. The microRNA/transcription factor (TF)-hub genes regulatory network was further constructed. The key gene was validated using the GSE77298 validation set, cellular validation was performed in in vitro experiments, and immune infiltration analysis was performed using CIBERSORT. Network pharmacology was used to find key gene-targeting drugs, followed by molecular docking and molecular dynamics simulations to analyze the binding stability between small-molecule drugs and large-molecule proteins. Results Three hub genes (CASP8, PTGS2, and JUN) were screened via bioinformatics, and the key gene (CASP8) was validated and obtained through the validation set, and the diagnostic efficacy was verified to be excellent through the receiver operating characteristic (ROC) curves. The ferroptosis and pyroptosis phenotypes were constructed by fibroblast-like synoviocytes (FLS), and caspase-8 was detected and validated as a common biomarker for ferroptosis and pyroptosis in RA, and quercetin can reduce caspase-8 levels. Quercetin was found to be a potential target drug for caspase-8 by network pharmacology, and the stability of their binding was further verified using molecular docking and molecular dynamics simulations. Conclusion Caspase-8 is an important biomarker for ferroptosis and pyroptosis in RA, and quercetin is a potential therapy for RA via targeting caspase-8 through ferroptosis and pyroptosis.
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Affiliation(s)
- Qingcong Zheng
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Du Wang
- Arthritis Clinical and Research Center, Peking University People’s Hospital, Beijing, People’s Republic of China
| | - Rongjie Lin
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, People’s Republic of China
| | - Yuchao Chen
- Department of Paediatrics, Fujian Provincial Hospital South Branch, Fuzhou, People’s Republic of China
| | - Zixing Xu
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Weihong Xu
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
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Doglio MG, Verboom L, Ruilova Sosoranga E, Frising UC, Asaoka T, Gansemans Y, Van Nieuwerburgh F, van Loo G, Wullaert A. Myeloid OTULIN deficiency couples RIPK3-dependent cell death to Nlrp3 inflammasome activation and IL-1β secretion. Sci Immunol 2023; 8:eadf4404. [PMID: 38000038 DOI: 10.1126/sciimmunol.adf4404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 09/25/2023] [Indexed: 11/26/2023]
Abstract
Loss-of-function mutations in the deubiquitinase OTULIN result in an inflammatory pathology termed "OTULIN-related autoinflammatory syndrome" (ORAS). Genetic mouse models revealed essential roles for OTULIN in inflammatory and cell death signaling, but the mechanisms by which OTULIN deficiency connects cell death to inflammation remain unclear. Here, we identify OTULIN deficiency as a cellular condition that licenses RIPK3-mediated cell death in murine macrophages, leading to Nlrp3 inflammasome activation and subsequent IL-1β secretion. OTULIN deficiency uncoupled Nlrp3 inflammasome activation from gasdermin D-mediated pyroptosis, instead allowing RIPK3-dependent cell death to act as an Nlrp3 inflammasome activator and mechanism for IL-1β release. Accordingly, elevated serum IL-1β levels in myeloid-specific OTULIN-deficient mice were diminished by deleting either Ripk3 or Nlrp3. These findings identify OTULIN as an inhibitor of RIPK3-mediated IL-1β release in mice.
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Affiliation(s)
- M Giulia Doglio
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Lien Verboom
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Emily Ruilova Sosoranga
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Ulrika C Frising
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Tomoko Asaoka
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Yannick Gansemans
- Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | | | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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5
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Granata S, La Russa D, Stallone G, Perri A, Zaza G. Inflammasome pathway in kidney transplantation. Front Med (Lausanne) 2023; 10:1303110. [PMID: 38020086 PMCID: PMC10663322 DOI: 10.3389/fmed.2023.1303110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Kidney transplantation is the best available renal replacement therapy for patients with end-stage kidney disease and is associated with better quality of life and patient survival compared with dialysis. However, despite the significant technical and pharmaceutical advances in this field, kidney transplant recipients are still characterized by reduced long-term graft survival. In fact, almost half of the patients lose their allograft after 15-20 years. Most of the conditions leading to graft loss are triggered by the activation of a large immune-inflammatory machinery. In this context, several inflammatory markers have been identified, and the deregulation of the inflammasome (NLRP3, NLRP1, NLRC4, AIM2), a multiprotein complex activated by either whole pathogens (including fungi, bacteria, and viruses) or host-derived molecules, seems to play a pivotal pathogenetic role. However, the biological mechanisms leading to inflammasome activation in patients developing post-transplant complications (including, ischemia-reperfusion injury, rejections, infections) are still largely unrecognized, and only a few research reports, reviewed in this manuscript, have addressed the association between abnormal activation of this pathway and the onset/development of major clinical effects. Finally, the regulation of the inflammasome machinery could represent in future a valuable therapeutic target in kidney transplantation.
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Affiliation(s)
- Simona Granata
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Daniele La Russa
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Giovanni Stallone
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Anna Perri
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | - Gianluigi Zaza
- Nephrology, Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
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6
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Speir M, Tye H, Gottschalk TA, Simpson DS, Djajawi TM, Deo P, Ambrose RL, Conos SA, Emery J, Abraham G, Pascoe A, Hughes SA, Weir A, Hawkins ED, Kong I, Herold MJ, Pearson JS, Lalaoui N, Naderer T, Vince JE, Lawlor KE. A1 is induced by pathogen ligands to limit myeloid cell death and NLRP3 inflammasome activation. EMBO Rep 2023; 24:e56865. [PMID: 37846472 PMCID: PMC10626451 DOI: 10.15252/embr.202356865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 09/09/2023] [Accepted: 09/21/2023] [Indexed: 10/18/2023] Open
Abstract
Programmed cell death pathways play an important role in innate immune responses to infection. Activation of intrinsic apoptosis promotes infected cell clearance; however, comparatively little is known about how this mode of cell death is regulated during infections and whether it can induce inflammation. Here, we identify that the pro-survival BCL-2 family member, A1, controls activation of the essential intrinsic apoptotic effectors BAX/BAK in macrophages and monocytes following bacterial lipopolysaccharide (LPS) sensing. We show that, due to its tight transcriptional and post-translational regulation, A1 acts as a molecular rheostat to regulate BAX/BAK-dependent apoptosis and the subsequent NLRP3 inflammasome-dependent and inflammasome-independent maturation of the inflammatory cytokine IL-1β. Furthermore, induction of A1 expression in inflammatory monocytes limits cell death modalities and IL-1β activation triggered by Neisseria gonorrhoeae-derived outer membrane vesicles (NOMVs). Consequently, A1-deficient mice exhibit heightened IL-1β production in response to NOMV injection. These findings reveal that bacteria can induce A1 expression to delay myeloid cell death and inflammatory responses, which has implications for the development of host-directed antimicrobial therapeutics.
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7
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Pang J, Vince JE. The role of caspase-8 in inflammatory signalling and pyroptotic cell death. Semin Immunol 2023; 70:101832. [PMID: 37625331 DOI: 10.1016/j.smim.2023.101832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/20/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
The programmed cell death machinery exhibits surprising flexibility, capable of crosstalk and non-apoptotic roles. Much of this complexity arises from the diverse functions of caspase-8, a cysteine-aspartic acid protease typically associated with activating caspase-3 and - 7 to induce apoptosis. However, recent research has revealed that caspase-8 also plays a role in regulating the lytic gasdermin cell death machinery, contributing to pyroptosis and immune responses in contexts such as infection, autoinflammation, and T-cell signalling. In mice, loss of caspase-8 results in embryonic lethality from unrestrained necroptotic killing, while in humans caspase-8 deficiency can lead to an autoimmune lymphoproliferative syndrome, immunodeficiency, inflammatory bowel disease or, when it can't cleave its substrate RIPK1, early onset periodic fevers. This review focuses on non-canonical caspase-8 signalling that drives immune responses, including its regulation of inflammatory gene transcription, activation within inflammasome complexes, and roles in pyroptotic cell death. Ultimately, a deeper understanding of caspase-8 function will aid in determining whether, and when, targeting caspase-8 pathways could be therapeutically beneficial in human diseases.
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Affiliation(s)
- Jiyi Pang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - James E Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
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8
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Abstract
The mammalian NLR gene family was first reported over 20 years ago, although several genes that were later grouped into the family were already known at that time. Although it is widely known that NLRs include inflammasome receptors and/or sensors that promote the maturation of caspase 1, IL-1β, IL-18 and gasdermin D to drive inflammation and cell death, the other functions of NLR family members are less well appreciated by the scientific community. Examples include MHC class II transactivator (CIITA), a master transcriptional activator of MHC class II genes, which was the first mammalian NBD-LRR-containing protein to be identified, and NLRC5, which regulates the expression of MHC class I genes. Other NLRs govern key inflammatory signalling pathways or interferon responses, and several NLR family members serve as negative regulators of innate immune responses. Multiple NLRs regulate the balance of cell death, cell survival, autophagy, mitophagy and even cellular metabolism. Perhaps the least discussed group of NLRs are those with functions in the mammalian reproductive system. The focus of this Review is to provide a synopsis of the NLR family, including both the intensively studied and the underappreciated members. We focus on the function, structure and disease relevance of NLRs and highlight issues that have received less attention in the NLR field. We hope this may serve as an impetus for future research on the conventional and non-conventional roles of NLRs within and beyond the immune system.
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Affiliation(s)
- Wei-Chun Chou
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sushmita Jha
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur, India
| | - Michael W Linhoff
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Jenny P-Y Ting
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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9
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Trishna S, Lavon A, Shteinfer-Kuzmine A, Dafa-Berger A, Shoshan-Barmatz V. Overexpression of the mitochondrial anti-viral signaling protein, MAVS, in cancers is associated with cell survival and inflammation. Mol Ther Nucleic Acids 2023; 33:713-732. [PMID: 37662967 PMCID: PMC10468804 DOI: 10.1016/j.omtn.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 07/11/2023] [Indexed: 09/05/2023]
Abstract
Mitochondrial anti-viral signaling protein (MAVS) plays an important role in host defense against viral infection via coordinating the activation of NF-κB and interferon regulatory factors. The mitochondrial-bound form of MAVS is essential for its anti-viral innate immunity. Recently, tumor cells were proposed to mimic a viral infection by activating RNA-sensing pattern recognition receptors. Here, we demonstrate that MAVS is overexpressed in a panel of viral non-infected cancer cell lines and patient-derived tumors, including lung, liver, bladder, and cervical cancers, and we studied its role in cancer. Silencing MAVS expression reduced cell proliferation and the expression and nuclear translocation of proteins associated with transcriptional regulation, inflammation, and immunity. MAVS depletion reduced expression of the inflammasome components and inhibited its activation/assembly. Moreover, MAVS directly interacts with the mitochondrial protein VDAC1, decreasing its conductance, and we identified the VDAC1 binding site in MAVS. Our findings suggest that MAVS depletion, by reducing cancer cell proliferation and inflammation, represents a new target for cancer therapy.
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Affiliation(s)
- Sweta Trishna
- Department of Life Sciences, University of the Negev, Beer Sheva 84105, Israel
| | - Avia Lavon
- Department of Life Sciences, University of the Negev, Beer Sheva 84105, Israel
| | - Anna Shteinfer-Kuzmine
- National Institute for Biotechnology in the Negev Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Avis Dafa-Berger
- Department of Life Sciences, University of the Negev, Beer Sheva 84105, Israel
| | - Varda Shoshan-Barmatz
- Department of Life Sciences, University of the Negev, Beer Sheva 84105, Israel
- National Institute for Biotechnology in the Negev Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
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10
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Liu S, Men X, Guo Y, Cai W, Wu R, Gao R, Zhong W, Guo H, Ruan H, Chou S, Mai J, Ping S, Jiang C, Zhou H, Mou X, Zhao W, Lu Z. Gut microbes exacerbate systemic inflammation and behavior disorders in neurologic disease CADASIL. Microbiome 2023; 11:202. [PMID: 37684694 PMCID: PMC10486110 DOI: 10.1186/s40168-023-01638-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 08/01/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a cerebral small vessel disease that carries mutations in NOTCH3. The clinical manifestations are influenced by genetic and environmental factors that may include gut microbiome. RESULTS We investigated the fecal metagenome, fecal metabolome, serum metabolome, neurotransmitters, and cytokines in a cohort of 24 CADASIL patients with 28 healthy household controls. The integrated-omics study showed CADASIL patients harbored an altered microbiota composition and functions. The abundance of bacterial coenzyme A, thiamin, and flavin-synthesizing pathways was depleted in patients. Neurotransmitter balance, represented by the glutamate/GABA (4-aminobutanoate) ratio, was disrupted in patients, which was consistent with the increased abundance of two major GABA-consuming bacteria, Megasphaera elsdenii and Eubacterium siraeum. Essential inflammatory cytokines were significantly elevated in patients, accompanied by an increased abundance of bacterial virulence gene homologs. The abundance of patient-enriched Fusobacterium varium positively correlated with the levels of IL-1β and IL-6. Random forest classification based on gut microbial species, serum cytokines, and neurotransmitters showed high predictivity for CADASIL with AUC = 0.89. Targeted culturomics and mechanisms study further showed that patient-derived F. varium infection caused systemic inflammation and behavior disorder in Notch3R170C/+ mice potentially via induction of caspase-8-dependent noncanonical inflammasome activation in macrophages. CONCLUSION These findings suggested the potential linkage among the brain-gut-microbe axis in CADASIL. Video Abstract.
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Affiliation(s)
- Sheng Liu
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Xuejiao Men
- Department of Neurology, Center for the Study of Mental and Neurological Disorders, the Third Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Yang Guo
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Wei Cai
- Department of Neurology, Center for the Study of Mental and Neurological Disorders, the Third Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Ruizhen Wu
- Department of Neurology, Center for the Study of Mental and Neurological Disorders, the Third Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Rongsui Gao
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Weicong Zhong
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Huating Guo
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Hengfang Ruan
- Department of Neurology, Center for the Study of Mental and Neurological Disorders, the Third Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China
| | - Shuli Chou
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Junrui Mai
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Suning Ping
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Chao Jiang
- Life Sciences Institute, Zhejiang University, Hangzhou, 310012, Zhejiang, China
| | - Hongwei Zhou
- Department of Laboratory Medicine, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Xiangyu Mou
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China.
| | - Wenjing Zhao
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Shenzhen Campus of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China.
| | - Zhengqi Lu
- Department of Neurology, Center for the Study of Mental and Neurological Disorders, the Third Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou, 510630, Guangdong, China.
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11
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Shnayder NA, Ashhotov AV, Trefilova VV, Novitsky MA, Medvedev GV, Petrova MM, Narodova EA, Kaskaeva DS, Chumakova GA, Garganeeva NP, Lareva NV, Al-Zamil M, Asadullin AR, Nasyrova RF. High-Tech Methods of Cytokine Imbalance Correction in Intervertebral Disc Degeneration. Int J Mol Sci 2023; 24:13333. [PMID: 37686139 PMCID: PMC10487844 DOI: 10.3390/ijms241713333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
An important mechanism for the development of intervertebral disc degeneration (IDD) is an imbalance between anti-inflammatory and pro-inflammatory cytokines. Therapeutic and non-therapeutic approaches for cytokine imbalance correction in IDD either do not give the expected result, or give a short period of time. This explains the relevance of high-tech medical care, which is part of specialized care and includes the use of new resource-intensive methods of treatment with proven effectiveness. The aim of the review is to update knowledge about new high-tech methods based on cytokine imbalance correction in IDD. It demonstrates promise of new approaches to IDD management in patients resistant to previously used therapies, including: cell therapy (stem cell implantation, implantation of autologous cultured cells, and tissue engineering); genetic technologies (gene modifications, microRNA, and molecular inducers of IDD); technologies for influencing the inflammatory cascade in intervertebral discs mediated by abnormal activation of inflammasomes; senolytics; exosomal therapy; and other factors (hypoxia-induced factors; lysyl oxidase; corticostatin; etc.).
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Affiliation(s)
- Natalia A. Shnayder
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia; (A.V.A.); (V.V.T.)
- Shared Core Facilities “Molecular and Cell Technologies”, V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (E.A.N.); (D.S.K.)
| | - Azamat V. Ashhotov
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia; (A.V.A.); (V.V.T.)
| | - Vera V. Trefilova
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia; (A.V.A.); (V.V.T.)
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia;
| | - Maxim A. Novitsky
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia;
| | - German V. Medvedev
- R.R. Vreden National Medical Research Center for Traumatology and Orthopedics, 195427 Saint-Petersburg, Russia;
| | - Marina M. Petrova
- Shared Core Facilities “Molecular and Cell Technologies”, V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (E.A.N.); (D.S.K.)
| | - Ekaterina A. Narodova
- Shared Core Facilities “Molecular and Cell Technologies”, V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (E.A.N.); (D.S.K.)
| | - Daria S. Kaskaeva
- Shared Core Facilities “Molecular and Cell Technologies”, V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia; (M.M.P.); (E.A.N.); (D.S.K.)
| | - Galina A. Chumakova
- Department of Therapy and General Medical Practice with a Course of Postgraduate Professional Education, Altai State Medical University, 656038 Barnaul, Russia;
| | - Natalia P. Garganeeva
- Department of General Medical Practice and Outpatient Therapy, Siberian State Medical University, 634050 Tomsk, Russia;
| | - Natalia V. Lareva
- Department of Therapy of Faculty of Postgraduate Education, Chita State Medical Academy, 672000 Chita, Russia;
| | - Mustafa Al-Zamil
- Department of Physiotherapy, Faculty of Continuing Medical Education, Peoples’ Friendship University of Russia, 117198 Moscow, Russia;
| | - Azat R. Asadullin
- Department of Psychiatry and Addiction, Bashkir State Medical University, 450008 Ufa, Russia;
| | - Regina F. Nasyrova
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia; (A.V.A.); (V.V.T.)
- International Centre for Education and Research in Neuropsychiatry, Samara State Medical University, 443016 Samara, Russia
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12
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Lentini G, Famà A, De Gaetano GV, Coppolino F, Mahjoub AK, Ryan L, Lien E, Espevik T, Beninati C, Teti G. Caspase-8 inhibition improves the outcome of bacterial infections in mice by promoting neutrophil activation. Cell Rep Med 2023:101098. [PMID: 37390829 PMCID: PMC10394171 DOI: 10.1016/j.xcrm.2023.101098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/07/2023] [Accepted: 06/08/2023] [Indexed: 07/02/2023]
Abstract
During differentiation, neutrophils undergo a spontaneous pro-inflammatory program that is hypothesized here to be under caspase-8 control. In mice, intraperitoneal administration of the caspase-8 inhibitor z-IETD-fmk is sufficient to unleash the production of pro-inflammatory cytokines and neutrophil influx in the absence of cell death. These effects are due to selective inhibition of caspase-8 and require tonic interferon-β (IFN-β) production and RIPK3 but not MLKL, the essential downstream executioner of necroptotic cell death. In vitro, stimulation with z-IETD-fmk is sufficient to induce significant cytokine production in murine neutrophils but not in macrophages. Therapeutic administration of z-IETD-fmk improves clinical outcome in models of lethal bacterial peritonitis and pneumonia by augmenting cytokine release, neutrophil influx, and bacterial clearance. Moreover, the inhibitor protects mice against high-dose endotoxin shock. Collectively, our data unveil a RIPK3- and IFN-β-dependent pathway that is constitutively activated in neutrophils and can be harnessed therapeutically using caspase-8 inhibition.
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Affiliation(s)
- Germana Lentini
- Department of Human Pathology, University of Messina, Messina, Italy
| | - Agata Famà
- Department of Human Pathology, University of Messina, Messina, Italy
| | | | - Francesco Coppolino
- Department of Chemical, Biological and Pharmaceutical Sciences, University of Messina, Messina, Italy
| | | | - Liv Ryan
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Egil Lien
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Division of Infectious Diseases and Immunology, Program in Innate Immunity, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Terje Espevik
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Concetta Beninati
- Department of Human Pathology, University of Messina, Messina, Italy; Scylla Biotech Srl, Messina, Italy
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13
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Pollock TY, Vázquez Marrero VR, Brodsky IE, Shin S. TNF licenses macrophages to undergo rapid caspase-1, -11, and -8-mediated cell death that restricts Legionella pneumophila infection. PLoS Pathog 2023; 19:e1010767. [PMID: 37279255 DOI: 10.1371/journal.ppat.1010767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 05/25/2023] [Indexed: 06/08/2023] Open
Abstract
The inflammatory cytokine tumor necrosis factor (TNF) is necessary for host defense against many intracellular pathogens, including Legionella pneumophila. Legionella causes the severe pneumonia Legionnaires' disease and predominantly affects individuals with a suppressed immune system, including those receiving therapeutic TNF blockade to treat autoinflammatory disorders. TNF induces pro-inflammatory gene expression, cellular proliferation, and survival signals in certain contexts, but can also trigger programmed cell death in others. It remains unclear, however, which of the pleiotropic functions of TNF mediate control of intracellular bacterial pathogens like Legionella. In this study, we demonstrate that TNF signaling licenses macrophages to die rapidly in response to Legionella infection. We find that TNF-licensed cells undergo rapid gasdermin-dependent, pyroptotic death downstream of inflammasome activation. We also find that TNF signaling upregulates components of the inflammasome response, and that the caspase-11-mediated non-canonical inflammasome is the first inflammasome to be activated, with caspase-1 and caspase-8 mediating delayed pyroptotic death. We find that all three caspases are collectively required for optimal TNF-mediated restriction of bacterial replication in macrophages. Furthermore, caspase-8 is required for control of pulmonary Legionella infection. These findings reveal a TNF-dependent mechanism in macrophages for activating rapid cell death that is collectively mediated by caspases-1, -8, and -11 and subsequent restriction of Legionella infection.
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Affiliation(s)
- Tzvi Y Pollock
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Víctor R Vázquez Marrero
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Igor E Brodsky
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, United States of America
| | - Sunny Shin
- Department of Microbiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
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14
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Eeckhout E, Hamerlinck L, Jonckheere V, Van Damme P, van Loo G, Wullaert A. Gasdermin D independent canonical inflammasome responses cooperate with caspase-8 to establish host defense against gastrointestinal Citrobacter rodentium infection. Cell Death Dis 2023; 14:282. [PMID: 37080966 PMCID: PMC10119323 DOI: 10.1038/s41419-023-05801-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Abstract
Citrobacter rodentium is an enteropathogen that causes intestinal inflammatory responses in mice reminiscent of the pathology provoked by enteropathogenic and enterohemorrhagic Escherichia coli infections in humans. C. rodentium expresses various virulence factors that target specific signaling proteins involved in executing apoptotic, necroptotic and pyroptotic cell death, suggesting that each of these distinct cell death modes performs essential host defense functions that the pathogen aims to disturb. However, the relative contributions of apoptosis, necroptosis and pyroptosis in protecting the host against C. rodentium have not been elucidated. Here we used mice with single or combined deficiencies in essential signaling proteins controlling apoptotic, necroptotic or pyroptotic cell death to reveal the roles of these cell death modes in host defense against C. rodentium. Gastrointestinal C. rodentium infections in mice lacking GSDMD and/or MLKL showed that both pyroptosis and necroptosis were dispensable for pathogen clearance. In contrast, while RIPK3-deficient mice showed normal C. rodentium clearance, mice with combined caspase-8 and RIPK3 deficiencies failed to clear intestinal pathogen loads. Although this demonstrated a crucial role for caspase-8 signaling in establishing intestinal host defense, Casp8-/-Ripk3-/- mice remained capable of preventing systemic pathogen persistence. This systemic host defense relied on inflammasome signaling, as Casp8-/-Ripk3-/- mice with combined caspase-1 and -11 deletion succumbed to C. rodentium infection. Interestingly, although it is known that C. rodentium can activate the non-canonical caspase-11 inflammasome, selectively disabling canonical inflammasome signaling by single caspase-1 deletion sufficed to render Casp8-/-Ripk3-/- mice vulnerable to C. rodentium-induced lethality. Moreover, Casp8-/-Ripk3-/- mice lacking GSDMD survived a C. rodentium infection, suggesting that pyroptosis was not crucial for the protective functions of canonical inflammasomes in these mice. Taken together, our mouse genetic experiments revealed an essential cooperation between caspase-8 signaling and GSDMD-independent canonical inflammasome signaling to establish intestinal and systemic host defense against gastrointestinal C. rodentium infection.
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Affiliation(s)
- Elien Eeckhout
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Lisa Hamerlinck
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Veronique Jonckheere
- iRIP Unit, Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Petra Van Damme
- iRIP Unit, Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium.
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium.
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
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15
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Yu Y, Lin X, Feng F, Wei Y, Wei S, Gong Y, Guo C, Wang Q, Shuai P, Wang T, Qin H, Li G, Yi L. Gut microbiota and ionizing radiation-induced damage: Is there a link? Environ Res 2023; 229:115947. [PMID: 37080277 DOI: 10.1016/j.envres.2023.115947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
According to observational findings, ionizing radiation (IR) triggers dysbiosis of the intestinal microbiota, affecting the structural composition, function, and species of the gut microbiome and its metabolites. These modifications can further exacerbate IR-induced damage and amplify proinflammatory immune responses. Conversely, commensal bacteria and favorable metabolites can remodel the IR-disturbed gut microbial structure, promote a balance between anti-inflammatory and proinflammatory mechanisms in the body, and mitigate IR toxicity. The discovery of effective and safe remedies to prevent and treat radiation-induced injuries is vitally needed because of the proliferation of radiation toxicity threats produced by recent radiological public health disasters and increasing medical exposures. This review examines how the gut microbiota and its metabolites are linked to the processes of IR-induced harm. We highlight protective measures based on interventions with gut microbes to optimize the distress caused by IR damage to human health. We offer prospects for research in emerging and promising areas targeting the prevention and treatment of IR-induced damage.
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Affiliation(s)
- Yueqiu Yu
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xiang Lin
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Feiyang Feng
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yuanyun Wei
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Shuang Wei
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yaqi Gong
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Caimao Guo
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Qingyu Wang
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Peimeng Shuai
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Tiantian Wang
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Hui Qin
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Guoqing Li
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Lan Yi
- Institute of Cytology and Genetics, The Hengyang Key Laboratory of Cellular Stress Biology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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16
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Rajan S, Tryphena KP, Khan S, Vora L, Srivastava S, Singh SB, Khatri DK. Understanding the involvement of innate immunity and the Nrf2-NLRP3 axis on mitochondrial health in Parkinson's disease. Ageing Res Rev 2023; 87:101915. [PMID: 36963313 DOI: 10.1016/j.arr.2023.101915] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/01/2023] [Accepted: 03/19/2023] [Indexed: 03/26/2023]
Abstract
Parkinson's disease (PD), a multifactorial movement disorder, is interlinked with numerous molecular pathways, including neuroinflammation, which is a critical factor in the development and progression of PD. Microglia play a central role in driving neuroinflammation through activation and overexpression of the M1 phenotype, which has a significant impact on mitochondria. Multiple regulators converge together, and among these, the NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasomes have been implicated in transmitting inflammatory and deleterious components to the mitochondria. Nuclear factor erythroid 2-related factor 2 (Nrf2) regulates the NLRP3 inflammasome and acts as the saviour of the mitochondria. Together, the NLRP3-Nrf2 axis functions in regulating mitochondrial function in the case of PD. It regulates fundamental processes such as oxidative stress, mitochondrial respiratory function, and mitochondrial dynamics. In this review, we discuss the contributions that a variety of miRNAs make to the regulation of the NLRP3 inflammasome and Nrf2, which can be used to target this important axis and contribute to the preservation of mitochondrial integrity. This axis may prove to be a crucial target for extending the lives of Parkinson's patients by deferring neuroinflammatory damage to mitochondria.
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Affiliation(s)
- Shruti Rajan
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India
| | - Kamatham Pushpa Tryphena
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India
| | - Sabiya Khan
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India
| | - Lalitkumar Vora
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India.
| | - Shashi Bala Singh
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India
| | - Dharmendra Kumar Khatri
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana 500037, India.
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17
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Hughes SA, Lin M, Weir A, Huang B, Xiong L, Chua NK, Pang J, Santavanond JP, Tixeira R, Doerflinger M, Deng Y, Yu C, Silke N, Conos SA, Frank D, Simpson DS, Murphy JM, Lawlor KE, Pearson JS, Silke J, Pellegrini M, Herold MJ, Poon IKH, Masters SL, Li M, Tang Q, Zhang Y, Rashidi M, Geng L, Vince JE. Caspase-8-driven apoptotic and pyroptotic crosstalk causes cell death and IL-1β release in X-linked inhibitor of apoptosis (XIAP) deficiency. EMBO J 2023; 42:e110468. [PMID: 36647737 PMCID: PMC9975961 DOI: 10.15252/embj.2021110468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023] Open
Abstract
Genetic lesions in X-linked inhibitor of apoptosis (XIAP) pre-dispose humans to cell death-associated inflammatory diseases, although the underlying mechanisms remain unclear. Here, we report that two patients with XIAP deficiency-associated inflammatory bowel disease display increased inflammatory IL-1β maturation as well as cell death-associated caspase-8 and Gasdermin D (GSDMD) processing in diseased tissue, which is reduced upon patient treatment. Loss of XIAP leads to caspase-8-driven cell death and bioactive IL-1β release that is only abrogated by combined deletion of the apoptotic and pyroptotic cell death machinery. Namely, extrinsic apoptotic caspase-8 promotes pyroptotic GSDMD processing that kills macrophages lacking both inflammasome and apoptosis signalling components (caspase-1, -3, -7, -11 and BID), while caspase-8 can still cause cell death in the absence of both GSDMD and GSDME when caspase-3 and caspase-7 are present. Neither caspase-3 and caspase-7-mediated activation of the pannexin-1 channel, or GSDMD loss, prevented NLRP3 inflammasome assembly and consequent caspase-1 and IL-1β maturation downstream of XIAP inhibition and caspase-8 activation, even though the pannexin-1 channel was required for NLRP3 triggering upon mitochondrial apoptosis. These findings uncouple the mechanisms of cell death and NLRP3 activation resulting from extrinsic and intrinsic apoptosis signalling, reveal how XIAP loss can co-opt dual cell death programs, and uncover strategies for targeting the cell death and inflammatory pathways that result from XIAP deficiency.
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18
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Abstract
Numerous mitochondrial constituents and metabolic products can function as damage-associated molecular patterns (DAMPs) and promote inflammation when released into the cytosol or extracellular milieu. Several safeguards are normally in place to prevent mitochondria from eliciting detrimental inflammatory reactions, including the autophagic disposal of permeabilized mitochondria. However, when the homeostatic capacity of such systems is exceeded or when such systems are defective, inflammatory reactions elicited by mitochondria can become pathogenic and contribute to the aetiology of human disorders linked to autoreactivity. In addition, inefficient inflammatory pathways induced by mitochondrial DAMPs can be pathogenic as they enable the establishment or progression of infectious and neoplastic disorders. Here we discuss the molecular mechanisms through which mitochondria control inflammatory responses, the cellular pathways that are in place to control mitochondria-driven inflammation and the pathological consequences of dysregulated inflammatory reactions elicited by mitochondrial DAMPs.
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Affiliation(s)
- Saverio Marchi
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy
| | - Emma Guilbaud
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Stephen W G Tait
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Takahiro Yamazaki
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.
- Sandra and Edward Meyer Cancer Center, New York, NY, USA.
- Caryl and Israel Englander Institute for Precision Medicine, New York, NY, USA.
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19
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Ali FE, Ibrahim IM, Ghogar OM, Abd-alhameed EK, Althagafy HS, Hassanein EH. Therapeutic interventions target the NLRP3 inflammasome in ulcerative colitis: Comprehensive study. World J Gastroenterol 2023; 29:1026-1053. [PMID: 36844140 PMCID: PMC9950862 DOI: 10.3748/wjg.v29.i6.1026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/29/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
One of the significant health issues in the world is the prevalence of ulcerative colitis (UC). UC is a chronic disorder that mainly affects the colon, beginning with the rectum, and can progress from asymptomatic mild inflammation to extensive inflammation of the entire colon. Understanding the underlying molecular mechanisms of UC pathogenesis emphasizes the need for innovative therapeutic approaches based on identifying molecular targets. Interestingly, in response to cellular injury, the NLR family pyrin domain containing 3 (NLRP3) inflammasome is a crucial part of the inflammation and immunological reaction by promoting caspase-1 activation and the release of interleukin-1β. This review discusses the mechanisms of NLRP3 inflammasome activation by various signals and its regulation and impact on UC.
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Affiliation(s)
- Fares E.M Ali
- Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Islam M. Ibrahim
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Osama M Ghogar
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Esraa K. Abd-alhameed
- Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 12345, Egypt
| | - Hanan S. Althagafy
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 12345, Saudi Arabia
| | - Emad H.M. Hassanein
- Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
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20
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Patton T, Zhao Z, Lim XY, Eddy E, Wang H, Nelson AG, Ennis B, Eckle SBG, Souter MNT, Pediongco TJ, Koay HF, Zhang JG, Djajawi TM, Louis C, Lalaoui N, Jacquelot N, Lew AM, Pellicci DG, McCluskey J, Zhan Y, Chen Z, Lawlor KE, Corbett AJ. RIPK3 controls MAIT cell accumulation during development but not during infection. Cell Death Dis 2023; 14:111. [PMID: 36774342 PMCID: PMC9922319 DOI: 10.1038/s41419-023-05619-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 02/13/2023]
Abstract
Cell death mechanisms in T lymphocytes vary according to their developmental stage, cell subset and activation status. The cell death control mechanisms of mucosal-associated invariant T (MAIT) cells, a specialized T cell population, are largely unknown. Here we report that MAIT cells express key necroptotic machinery; receptor-interacting protein kinase 3 (RIPK3) and mixed lineage kinase domain-like (MLKL) protein, in abundance. Despite this, we discovered that the loss of RIPK3, but not necroptotic effector MLKL or apoptotic caspase-8, specifically increased MAIT cell abundance at steady-state in the thymus, spleen, liver and lungs, in a cell-intrinsic manner. In contrast, over the course of infection with Francisella tularensis, RIPK3 deficiency did not impact the magnitude of the expansion nor contraction of MAIT cell pools. These findings suggest that, distinct from conventional T cells, the accumulation of MAIT cells is restrained by RIPK3 signalling, likely prior to thymic egress, in a manner independent of canonical apoptotic and necroptotic cell death pathways.
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Affiliation(s)
- Timothy Patton
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Zhe Zhao
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Xin Yi Lim
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Eleanor Eddy
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Huimeng Wang
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Adam G Nelson
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Bronte Ennis
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Sidonia B G Eckle
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Michael N T Souter
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Troi J Pediongco
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Hui-Fern Koay
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jian-Guo Zhang
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Tirta M Djajawi
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Cynthia Louis
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Najoua Lalaoui
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Nicolas Jacquelot
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Andrew M Lew
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Daniel G Pellicci
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Murdoch Children's Research Institute, Royal Children's Hospital Parkville, Parkville, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - James McCluskey
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Yifan Zhan
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Department of Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China
| | - Zhenjun Chen
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Kate E Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Alexandra J Corbett
- Department of Immunology and Microbiology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
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Abstract
Inflammasomes are supramolecular platforms that organize in response to various damage-associated molecular patterns and pathogen-associated molecular patterns. Upon activation, inflammasome sensors (with or without the help of ASC) activate caspase-1 and other inflammatory caspases that cleave gasdermin D and pro-IL-1β/pro-IL-18, leading to pyroptosis and mature cytokine secretion. Pyroptosis enables intracellular pathogen niche disruption and intracellular content release at the cost of cell death, inducing pro-inflammatory responses in the neighboring cells. IL-1β is a potent pro-inflammatory regulator for neutrophil recruitment, macrophage activation, and T-cell expansion. Thus, pyroptosis and cytokine secretion are the two main mechanisms that occur downstream of inflammasome signaling; they maintain homeostasis, drive the innate immune response, and shape adaptive immunity. This review aims to discuss the possible mechanisms, timing, consequences, and significance of the two uncoupling preferences downstream of inflammasome signaling. While pyroptosis and cytokine secretion may be usually coupled, pyroptosis-predominant and cytokine-predominant uncoupling are also observed in a stimulus-, cell type-, or context-dependent manner, contributing to the pathogenesis and development of numerous pathological conditions such as cryopyrin-associated periodic syndromes, LPS-induced sepsis, and Salmonella enterica serovar Typhimurium infection. Hyperactive cells consistently release IL-1β without LDH leakage and pyroptotic death, thereby leading to prolonged inflammation, expanding the lifespans of pyroptosis-resistant neutrophils, and hyperactivating stimuli-challenged macrophages, dendritic cells, monocytes, and specific nonimmune cells. Death inflammasome activation also induces GSDMD-mediated pyroptosis with no IL-1β secretion, which may increase lethality in vivo. The sublytic GSDMD pore formation associated with lower expressions of pyroptotic components, GSDMD-mediated extracellular vesicles, or other GSDMD-independent pathways that involve unconventional secretion could contribute to the cytokine-predominant uncoupling; the regulation of caspase-1 dynamics, which may generate various active species with different activities in terms of GSDMD or pro-IL-1β, could lead to pyroptosis-predominant uncoupling. These uncoupling preferences enable precise reactions to different stimuli of different intensities under specific conditions at the single-cell level, promoting cooperative cell and host fate decisions and participating in the pathogen "game". Appropriate decisions in terms of coupling and uncoupling are required to heal tissues and eliminate threats, and further studies exploring the inflammasome tilt toward pyroptosis or cytokine secretion may be helpful.
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22
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Wang X, Xu P, Liu Y, Wang Z, Lenahan C, Fang Y, Lu J, Zheng J, Wang K, Wang W, Zhou J, Chen S, Zhang J. New Insights of Early Brain Injury after Subarachnoid Hemorrhage: A Focus on the Caspase Family. Curr Neuropharmacol 2023; 21:392-408. [PMID: 35450528 PMCID: PMC10190145 DOI: 10.2174/1570159x20666220420115925] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 02/10/2022] [Accepted: 04/14/2022] [Indexed: 11/22/2022] Open
Abstract
Spontaneous subarachnoid hemorrhage (SAH), primarily caused by ruptured intracranial aneurysms, remains a prominent clinical challenge with a high rate of mortality and morbidity worldwide. Accumulating clinical trials aiming at the prevention of cerebral vasospasm (CVS) have failed to improve the clinical outcome of patients with SAH. Therefore, a growing number of studies have shifted focus to the pathophysiological changes that occur during the periods of early brain injury (EBI). New pharmacological agents aiming to alleviate EBI have become a promising direction to improve outcomes after SAH. Caspases belong to a family of cysteine proteases with diverse functions involved in maintaining metabolism, autophagy, tissue differentiation, regeneration, and neural development. Increasing evidence shows that caspases play a critical role in brain pathology after SAH. Therefore, caspase regulation could be a potential target for SAH treatment. Herein, we provide an overview pertaining to the current knowledge on the role of caspases in EBI after SAH, and we discuss the promising therapeutic value of caspase-related agents after SAH.
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Affiliation(s)
- Xiaoyu Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Penglei Xu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yibo Liu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zefeng Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Cameron Lenahan
- Center for Neuroscience Research, Loma Linda University School of Medicine, Loma Linda, CA, USA
- Burrell College of Osteopathic Medicine, Las Cruces, New Mexico
| | - Yuanjian Fang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jianan Lu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jingwei Zheng
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kaikai Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jingyi Zhou
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Sheng Chen
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Department of Neurosurgery, The Affiliated Huzhou Hospital, Zhejiang University School of Medicine (Huzhou Central Hospital), Huzhou, China
| | - Jianming Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China
- Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
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23
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Liu H, Fan H, He P, Zhuang H, Liu X, Chen M, Zhong W, Zhang Y, Zhen C, Li Y, Jiang H, Meng T, Xu Y, Zhao G, Feng D. Prohibitin 1 regulates mtDNA release and downstream inflammatory responses. EMBO J 2022; 41:e111173. [PMID: 36245295 PMCID: PMC9753472 DOI: 10.15252/embj.2022111173] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/11/2022] [Accepted: 09/14/2022] [Indexed: 01/15/2023] Open
Abstract
Exposure of mitochondrial DNA (mtDNA) to the cytosol activates innate immune responses. But the mechanisms by which mtDNA crosses the inner mitochondrial membrane are unknown. Here, we found that the inner mitochondrial membrane protein prohibitin 1 (PHB1) plays a critical role in mtDNA release by regulating permeability across the mitochondrial inner membrane. Loss of PHB1 results in alterations in mitochondrial integrity and function. PHB1-deficient macrophages, serum from myeloid-specific PHB1 KO (Phb1MyeKO) mice, and peripheral blood mononuclear cells from neonatal sepsis patients show increased interleukin-1β (IL-1β) levels. PHB1 KO mice are also intolerant of lipopolysaccharide shock. Phb1-depleted macrophages show increased cytoplasmic release of mtDNA and inflammatory responses. This process is suppressed by cyclosporine A and VBIT-4, which inhibit the mitochondrial permeability transition pore (mPTP) and VDAC oligomerization. Inflammatory stresses downregulate PHB1 expression levels in macrophages. Under normal physiological conditions, the inner mitochondrial membrane proteins, AFG3L2 and SPG7, are tethered to PHB1 to inhibit mPTP opening. Downregulation of PHB1 results in enhanced interaction between AFG3L2 and SPG7, mPTP opening, mtDNA release, and downstream inflammatory responses.
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Affiliation(s)
- Hao Liu
- Qingyuan People's HospitalThe Sixth Affiliated Hospital of Guangzhou Medical UniversityQingyuanChina
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhou Medical UniversityGuangzhouChina
| | - Hualin Fan
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- Department of Cardiology, School of MedicineSouth China University of TechnologyGuangzhouChina
| | - Pengcheng He
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of MedicineSouth China University of TechnologyGuangzhouChina
- Department of CardiologyHeyuan People's HospitalHeyuanChina
| | - Haixia Zhuang
- Department of AnesthesiologySecond Clinical College of Guangzhou Medical UniversityGuangzhouChina
| | - Xiao Liu
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Meiting Chen
- Emergency DepartmentThe Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Wenwei Zhong
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Yi Zhang
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- GMU‐GIBH Joint School of Life SciencesGuangzhou Medical UniversityGuangzhouChina
| | - Cien Zhen
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- Department of Cardiology, School of MedicineSouth China University of TechnologyGuangzhouChina
| | - Yanling Li
- Emergency DepartmentThe Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Huilin Jiang
- Emergency DepartmentThe Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Tian Meng
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
| | - Yiming Xu
- Qingyuan People's HospitalThe Sixth Affiliated Hospital of Guangzhou Medical UniversityQingyuanChina
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhou Medical UniversityGuangzhouChina
| | - Guojun Zhao
- Qingyuan People's HospitalThe Sixth Affiliated Hospital of Guangzhou Medical UniversityQingyuanChina
| | - Du Feng
- Qingyuan People's HospitalThe Sixth Affiliated Hospital of Guangzhou Medical UniversityQingyuanChina
- Guangzhou Municipal and Guangdong Provincial Key hLaboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhou Medical UniversityGuangzhouChina
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24
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Wu YH, Mo ST, Chen IT, Hsieh FY, Hsieh SL, Zhang J, Lai MZ. Caspase-8 inactivation drives autophagy-dependent inflammasome activation in myeloid cells. Sci Adv 2022; 8:eabn9912. [PMID: 36367942 PMCID: PMC9651862 DOI: 10.1126/sciadv.abn9912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 09/27/2022] [Indexed: 06/07/2023]
Abstract
Caspase-8 activity controls the switch from cell death to pyroptosis when apoptosis and necroptosis are blocked, yet how caspase-8 inactivation induces inflammasome assembly remains unclear. We show that caspase-8 inhibition via IETD treatment in Toll-like receptor (TLR)-primed Fadd-/-Ripk3-/- myeloid cells promoted interleukin-1β (IL-1β) and IL-18 production through inflammasome activation. Caspase-8, caspase-1/11, and functional GSDMD, but not NLRP3 or RIPK1 activity, proved essential for IETD-triggered inflammasome activation. Autophagy became prominent in IETD-treated Fadd-/-Ripk3-/- macrophages, and inhibiting it attenuated IETD-induced cell death and IL-1β/IL-18 production. In contrast, inhibiting GSDMD or autophagy did not prevent IETD-induced septic shock in Fadd-/-Ripk3-/- mice, implying distinct death processes in other cell types. Cathepsin-B contributes to IETD-mediated inflammasome activation, as its inhibition or down-regulation limited IETD-elicited IL-1β production. Therefore, the autophagy and cathepsin-B axis represents one of the pathways leading to atypical inflammasome activation when apoptosis and necroptosis are suppressed and capase-8 is inhibited in myeloid cells.
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Affiliation(s)
- Yung-Hsuan Wu
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Shu-Ting Mo
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - I-Ting Chen
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Fu-Yi Hsieh
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | | | - Jinake Zhang
- Department of Microbiology and Immunology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ming-Zong Lai
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
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25
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Moltrasio C, Romagnuolo M, Marzano AV. NLRP3 inflammasome and NLRP3-related autoinflammatory diseases: From cryopyrin function to targeted therapies. Front Immunol 2022; 13:1007705. [PMID: 36275641 PMCID: PMC9583146 DOI: 10.3389/fimmu.2022.1007705] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
The NLRP3 inflammasome is one of the NOD-like receptor family members with the most functional characterization and acts as a key player in innate immune system, participating in several physiological processes including, among others, the modulation of the immune system response and the coordination of host defences. Activation of the inflammasome is a crucial signaling mechanism that promotes both an acute and a chronic inflammatory response, which can accelerate the production of pro-inflammatory cytokines, mainly Interleukin (IL)-1β and IL-18, leading to an exacerbated inflammatory network. Cryopyrin associated periodic syndrome (CAPS) is a rare inherited autoinflammatory disorder, clinically characterized by cutaneous and systemic, musculoskeletal, and central nervous system inflammation. Gain-of-function mutations in NLRP3 gene are causative of signs and inflammatory symptoms in CAPS patients, in which an abnormal activation of the NLRP3 inflammasome, resulting in an inappropriate release of IL-1β and gasdermin-D-dependent pyroptosis, has been demonstrated both in in vitro and in ex vivo studies. During recent years, two new hereditary NLRP3-related disorders have been described, deafness autosomal dominant 34 (DFN34) and keratitis fugax hereditaria (KFH), with an exclusive cochlear- and anterior eye- restricted autoinflammation, respectively, and caused by mutations in NLRP3 gene, thus expanding the clinical and genetic spectrum of NLRP3-associated autoinflammatory diseases. Several crucial mechanisms involved in the control of activation and regulation of the NLRP3 inflammasome have been identified and researchers took advantage of this to develop novel target therapies with a significant improvement of clinical signs and symptoms of NLRP3-associated diseases. This review provides a broad overview of NLRP3 inflammasome biology with particular emphasis on CAPS, whose clinical, genetic, and therapeutic aspects will be explored in depth. The latest evidence on two “new” diseases, DFN34 and KFH, caused by mutations in NLRP3 is also described.
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Affiliation(s)
- Chiara Moltrasio
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Medical Surgical and Health Sciences, University of Trieste, Trieste, Italy
- *Correspondence: Chiara Moltrasio,
| | - Maurizio Romagnuolo
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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26
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Khot M, Sood A, Tryphena KP, Khan S, Srivastava S, Singh SB, Khatri DK. NLRP3 inflammasomes: A potential target to improve mitochondrial biogenesis in Parkinson's disease. Eur J Pharmacol 2022; 934:175300. [PMID: 36167151 DOI: 10.1016/j.ejphar.2022.175300] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/18/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022]
Abstract
Parkinson's disease (PD) is a common neurodegenerative condition for which no approved treatment exists to prevent collective neuronal death. There is ample evidence that mitochondrial dysfunction, reactive oxygen species (ROS), and associated caspase activity underlie the pathology observed. Neurons rely on mitochondrial activity since they have such high energy consumption. Therefore, it is not surprising that mitochondrial alterations favour neuronal degeneration. In particular, mitochondrial dysregulation contributes to PD, based on the observation that mitochondrial toxins can cause parkinsonism in humans and animal models. Also, it is known that inflammatory cytokine-mediated neuroinflammation is the key pathogenic mechanism in neuronal loss. In recent years, the research has focussed on mitochondria being the platform for nucleotide-binding oligomerization domain-like receptors 3 (NLRP3) inflammasome activation. Mitochondrial dysfunction and NLRP3 activation are emerging as critical players in inducing and sustaining neuroinflammation. Moreover, mitochondrial-derived ROS and mitochondrial DNA (mtDNA) could serve as the priming signal for forming inflammasome complexes responsible for the activation, maturation, and release of pro-inflammatory cytokines, including interleukin-1(IL-1) and interleukin-18 (IL-18). The current review takes a more comprehensive approach to elucidating the link between mitochondrial dysfunction and aberrant NLRP3 activation in PD. In addition, we focus on some inhibitors of NLRP3 inflammatory pathways to alleviate the progression of PD.
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Affiliation(s)
- Mayuri Khot
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Anika Sood
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Kamatham Pushpa Tryphena
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Sabiya Khan
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Shashi Bala Singh
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India
| | - Dharmendra Kumar Khatri
- Molecular and Cellular Neuroscience Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Telangana, 500037, India.
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27
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Guan Y, Gu Y, Li H, Liang B, Han C, Zhang Y, Liu Q, Wei W, Ma Y. NLRP3 inflammasome activation mechanism and its role in autoimmune liver disease. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1577-1586. [PMID: 36148948 PMCID: PMC9828325 DOI: 10.3724/abbs.2022137] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The NLRP3 inflammasome is a multiprotein binding compound comprising NLRP3, connector protein ASC, and effector protein pro-caspase-1. When the NLRP3 inflammasome senses a danger signal from the host or pathogen, activated caspase-1 cleaves the precursors of interleukin (IL)-1β and IL-18 into mature proinflammatory cytokines, simultaneously causing lysis via the pore-forming protein gasdermin D. This induction of cell inflammatory pyroptosis suggests that it is a key process in the innate immune response to pathogens or cellular stress. Recent studies have shown that NLRP3 inflammasome also plays an important role in regulating autoimmune liver diseases, including autoimmune hepatitis, primary biliary cholangitis, and primary sclerosclerotic cholangitis. In this review, we summarize the structure, activation and modulation of the NLRP3 inflammasome, highlight the progress in research on the role of NLRP3 inflammasome in the occurrence and development of autoimmune liver diseases, and discuss potential strategies for targeting the NLRP3 inflammasome in the treatment of autoimmune liver diseases.
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Affiliation(s)
- Yanling Guan
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China
| | - Yiyue Gu
- Department of Cardiologythe First People’s Hospital of XuzhouXuzhou221000China
| | - Hao Li
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China
| | - Bo Liang
- Institute of Dermatology and Department of Dermatologythe First Affiliated HospitalAnhui Medical UniversityHefei230032China
| | - Chenchen Han
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China
| | - Yu Zhang
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China
| | - Qian Liu
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China
| | - Wei Wei
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China,Correspondence address. Tel: +86-551-65161209; E-mail: (Y.M.) / E-mail: (W.W.) @ahmu.edu.cn
| | - Yang Ma
- Institute of Clinical PharmacologyAnhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationAnhui Collaborative Innovation Center of Anti-inflammatory and Immune MedicineCenter of Rheumatoid Arthritis of Anhui Medical UniversityHefei230032China,Correspondence address. Tel: +86-551-65161209; E-mail: (Y.M.) / E-mail: (W.W.) @ahmu.edu.cn
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Oliva A, Meroño C, Traba J. Mitochondrial function and dysfunction in innate immunity. Current Opinion in Physiology 2022. [DOI: 10.1016/j.cophys.2022.100571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Biswas DD, Martin RK, Brown LN, Mockenhaupt K, Gupta AS, Surace MJ, Tharakan A, Yester JW, Bhardwaj R, Conrad DH, Kordula T. Cellular inhibitor of apoptosis 2 (cIAP2) restricts neuroinflammation during experimental autoimmune encephalomyelitis. J Neuroinflammation 2022; 19:158. [PMID: 35718775 PMCID: PMC9208101 DOI: 10.1186/s12974-022-02527-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Immune activation, neuroinflammation, and cell death are the hallmarks of multiple sclerosis (MS), which is an autoimmune demyelinating disease of the central nervous system (CNS). It is well-documented that the cellular inhibitor of apoptosis 2 (cIAP2) is induced by inflammatory stimuli and regulates adaptive and innate immune responses, cell death, and the production of inflammatory mediators. However, the impact of cIAP2 on neuroinflammation associated with MS and disease severity remains unknown.
Methods We used experimental autoimmune encephalomyelitis (EAE), a widely used mouse model of MS, to assess the effect of cIAP2 deletion on disease outcomes. We performed a detailed analysis on the histological, cellular, and molecular levels. We generated and examined bone-marrow chimeras to identify the cIAP2-deficient cells that are critical to the disease outcomes. Results cIAP2−/− mice exhibited increased EAE severity, increased CD4+ T cell infiltration, enhanced proinflammatory cytokine/chemokine expression, and augmented demyelination. This phenotype was driven by cIAP2-deficient non-hematopoietic cells. cIAP2 protected oligodendrocytes from cell death during EAE by limiting proliferation and activation of brain microglia. This protective role was likely exerted by cIAP2-mediated inhibition of the non-canonical NLRP3/caspase-8-dependent myeloid cell activation during EAE. Conclusions Our findings suggest that cIAP2 is needed to modulate neuroinflammation, cell death, and survival during EAE. Significantly, our data demonstrate the critical role of cIAP2 in limiting the activation of microglia during EAE, which could be explored for developing MS therapeutics in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02527-6.
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Affiliation(s)
- Debolina D Biswas
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Rebecca K Martin
- Department of Microbiology and Immunology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - LaShardai N Brown
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Karli Mockenhaupt
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Angela S Gupta
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Michael J Surace
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Anuj Tharakan
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Jessie W Yester
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Reetika Bhardwaj
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Daniel H Conrad
- Department of Microbiology and Immunology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Tomasz Kordula
- Department of Biochemistry and Molecular Biology, School of Medicine and the Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA.
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Blevins HM, Xu Y, Biby S, Zhang S. The NLRP3 Inflammasome Pathway: A Review of Mechanisms and Inhibitors for the Treatment of Inflammatory Diseases. Front Aging Neurosci 2022; 14:879021. [PMID: 35754962 PMCID: PMC9226403 DOI: 10.3389/fnagi.2022.879021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/12/2022] [Indexed: 12/24/2022] Open
Abstract
The NLRP3 inflammasome is a multiprotein complex that plays a pivotal role in regulating the innate immune system and inflammatory signaling. Upon activation by PAMPs and DAMPs, NLRP3 oligomerizes and activates caspase-1 which initiates the processing and release of pro-inflammatory cytokines IL-1β and IL-18. NLRP3 is the most extensively studied inflammasome to date due to its array of activators and aberrant activation in several inflammatory diseases. Studies using small molecules and biologics targeting the NLRP3 inflammasome pathway have shown positive outcomes in treating various disease pathologies by blocking chronic inflammation. In this review, we discuss the recent advances in understanding the NLRP3 mechanism, its role in disease pathology, and provide a broad review of therapeutics discovered to target the NLRP3 pathway and their challenges.
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Affiliation(s)
| | | | | | - Shijun Zhang
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA, United States
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Weir A, Vince JE. No longer married to inflammasome signaling: the diverse interacting pathways leading to pyroptotic cell death. Biochem J 2022; 479:1083-102. [PMID: 35608339 DOI: 10.1042/BCJ20210711] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 02/07/2023]
Abstract
For over 15 years the lytic cell death termed pyroptosis was defined by its dependency on the inflammatory caspase, caspase-1, which, upon pathogen sensing, is activated by innate immune cytoplasmic protein complexes known as inflammasomes. However, this definition of pyroptosis changed when the pore-forming protein gasdermin D (GSDMD) was identified as the caspase-1 (and caspase-11) substrate required to mediate pyroptotic cell death. Consequently, pyroptosis has been redefined as a gasdermin-dependent cell death. Studies now show that, upon liberation of the N-terminal domain, five gasdermin family members, GSDMA, GSDMB, GSDMC, GSDMD and GSDME can all form plasma membrane pores to induce pyroptosis. Here, we review recent research into the diverse stimuli and cell death signaling pathways involved in the activation of gasdermins; death and toll-like receptor triggered caspase-8 activation of GSDMD or GSMDC, apoptotic caspase-3 activation of GSDME, perforin-granzyme A activation of GSDMB, and bacterial protease activation of GSDMA. We highlight findings that have begun to unravel the physiological situations and disease states that result from gasdermin signaling downstream of inflammasome activation, death receptor and mitochondrial apoptosis, and necroptosis. This new era in cell death research therefore holds significant promise in identifying how distinct, yet often networked, pyroptotic cell death pathways might be manipulated for therapeutic benefit to treat a range of malignant conditions associated with inflammation, infection and cancer.
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Zhao L, Zhou Y, Bai Z, Zhang F, Yang X. The underlying molecular mechanism of intratumoral radiofrequency hyperthermia-enhanced chemotherapy of pancreatic cancer. J Interv Med 2022; 5:57-63. [PMID: 35936663 PMCID: PMC9349012 DOI: 10.1016/j.jimed.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 02/07/2023] Open
Abstract
Background To investigate the underlying molecular mechanisms of radiofrequency hyperthermia (RFH)-enhanced direct chemotherapy of pancreatic cancers. Method Rat ductal PaCa cell line DSL-6A/C1 and orthotopic pancreatic cancers of Lewis rats were divided into four study groups with various treatments: i) phosphate-buffered saline (PBS) as a control; ii) RFH alone; iii) intratumoral chemotherapy alone (gemcitabine); and (iv) combination therapy of gemcitabine plus intratumoral RFH at 42 °C for 30 min. In the in-vitro confirmation experiments, the viability and apoptosis of DSL-6A/C1 cells in each treatment group were evaluated using cell live/dead staining, flow cytometry, and Western blot. In the in vivo validation experiments, related proteins were evaluated by immunohistochemistry (IHC) staining of tumors. Results Of the in-vitro experiments, the lowest cell viability and more apoptotic cells were shown in the group with combination therapy compared to other treatments. Western blot data showed elevated Bax/Bcl-2, Caspase-3, and HSP70 expressions in DSL cells with combination therapy, compared to other treatments. Of the in vivo experiments, IHC staining detected the significantly increased expressions of HSP70, IL-1β, TNF-ɑ, Bax, and Caspase-3 in pancreatic cancer tissues of the animal group treated by combination therapy of gemcitabine with RFH. Conclusion Molecular imaging-guided interventional RFH can significantly enhance the chemotherapeutic effect on pancreatic cancers via potential molecular mechanisms of up-regulating Bax/caspase-3-dependent apoptosis pathways.
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Alfian I, Chakraborty A, Yong HEJ, Saini S, Lau RWK, Kalionis B, Dimitriadis E, Alfaidy N, Ricardo SD, Samuel CS, Murthi P. The Placental NLRP3 Inflammasome and Its Downstream Targets, Caspase-1 and Interleukin-6, Are Increased in Human Fetal Growth Restriction: Implications for Aberrant Inflammation-Induced Trophoblast Dysfunction. Cells 2022; 11:1413. [PMID: 35563719 PMCID: PMC9102093 DOI: 10.3390/cells11091413] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
Fetal growth restriction (FGR) is commonly associated with placental insufficiency and inflammation. Nonetheless, the role played by inflammasomes in the pathogenesis of FGR is poorly understood. We hypothesised that placental inflammasomes are differentially expressed and contribute to the aberrant trophoblast function. Inflammasome gene expression profiles were characterised by real-time PCR on human placental tissues collected from third trimester FGR and gestation-matched control pregnancies (n = 25/group). The functional significance of a candidate inflammasome was then investigated using lipopolysaccharide (LPS)-induced models of inflammation in human trophoblast organoids, BeWo cells in vitro, and a murine model of FGR in vivo. Placental mRNA expression of NLRP3, caspases 1, 3, and 8, and interleukin 6 increased (>2-fold), while that of the anti-inflammatory cytokine, IL-10, decreased (<2-fold) in FGR compared with control pregnancies. LPS treatment increased NLRP3 and caspase-1 expression (>2-fold) in trophoblast organoids and BeWo cell cultures in vitro, and in the spongiotrophoblast and labyrinth in the murine model of FGR. However, the LPS-induced rise in NLRP3 was attenuated by its siRNA-induced down-regulation in BeWo cell cultures, which correlated with reduced activity of the apoptotic markers, caspase-3 and 8, compared to the control siRNA-treated cells. Our findings support the role of the NLRP3 inflammasome in the inflammation-induced aberrant trophoblast function, which may contribute to FGR.
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Affiliation(s)
- Irvan Alfian
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
- Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya 6, Jakarta Pusat 10160, Indonesia
| | - Amlan Chakraborty
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
| | - Hannah E. J. Yong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore 117609, Singapore;
| | - Sheetal Saini
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
| | - Ricky W. K. Lau
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
| | - Bill Kalionis
- Department of Maternal-Fetal Medicine Pregnancy Research Centre, The Royal Women’s Hospital, Melbourne, VIC 3052, Australia;
- Department of Obstetrics and Gynaecology, The University of Melbourne, Melbourne, VIC 3052, Australia;
| | - Evdokia Dimitriadis
- Department of Obstetrics and Gynaecology, The University of Melbourne, Melbourne, VIC 3052, Australia;
- Gynaecology Research Centre, The Royal Women’s Hospital, Melbourne, VIC 3052, Australia
| | - Nadia Alfaidy
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38043 Grenoble, France;
- Commissariat à l’Energie Atomique et aux Energies Alternatives (CEA), Biosciences and Biotechnology Institute of Grenoble, 38054 Grenoble, France
- Service Obstétrique & Gynécologie, Centre Hospitalo-Universitaire Grenoble Alpes, University Grenoble-Alpes, CEDEX 9, 38043 Grenoble, France
| | - Sharon D. Ricardo
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
| | - Chrishan S. Samuel
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
| | - Padma Murthi
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC 3800, Australia; (I.A.); (A.C.); (S.S.); (R.W.K.L.); (S.D.R.)
- Department of Maternal-Fetal Medicine Pregnancy Research Centre, The Royal Women’s Hospital, Melbourne, VIC 3052, Australia;
- Department of Obstetrics and Gynaecology, The University of Melbourne, Melbourne, VIC 3052, Australia;
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Demarco B, Danielli S, Fischer FA, Bezbradica JS. How Pyroptosis Contributes to Inflammation and Fibroblast-Macrophage Cross-Talk in Rheumatoid Arthritis. Cells 2022; 11:1307. [PMID: 35455985 DOI: 10.3390/cells11081307] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 12/11/2022] Open
Abstract
About thirty years ago, a new form of pro-inflammatory lytic cell death was observed and termed pyroptosis. Only in 2015, gasdermins were defined as molecules that create pores at the plasma membrane and drive pyroptosis. Today, we know that gasdermin-mediated death is an important antimicrobial defence mechanism in bacteria, yeast and mammals as it destroys the intracellular niche for pathogen replication. However, excessive and uncontrolled cell death also contributes to immunopathology in several chronic inflammatory diseases, including arthritis. In this review, we discuss recent findings where pyroptosis contributes to tissue damage and inflammation with a main focus on injury-induced and autoimmune arthritis. We also review novel functions and regulatory mechanisms of the pyroptotic executors gasdermins. Finally, we discuss possible models of how pyroptosis may contribute to the cross-talk between fibroblast and macrophages, and also how this cross-talk may regulate inflammation by modulating inflammasome activation and pyroptosis induction.
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Bonora M, Giorgi C, Pinton P. Molecular mechanisms and consequences of mitochondrial permeability transition. Nat Rev Mol Cell Biol 2022; 23:266-85. [PMID: 34880425 DOI: 10.1038/s41580-021-00433-y] [Citation(s) in RCA: 156] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2021] [Indexed: 12/29/2022]
Abstract
Mitochondrial permeability transition (mPT) is a phenomenon that abruptly causes the flux of low molecular weight solutes (molecular weight up to 1,500) across the generally impermeable inner mitochondrial membrane. The mPT is mediated by the so-called mitochondrial permeability transition pore (mPTP), a supramolecular entity assembled at the interface of the inner and outer mitochondrial membranes. In contrast to mitochondrial outer membrane permeabilization, which mostly activates apoptosis, mPT can trigger different cellular responses, from the physiological regulation of mitophagy to the activation of apoptosis or necrosis. Although there are several molecular candidates for the mPTP, its molecular nature remains contentious. This lack of molecular data was a significant setback that prevented mechanistic insight into the mPTP, pharmacological targeting and the generation of informative animal models. In recent years, experimental evidence has highlighted mitochondrial F1Fo ATP synthase as a participant in mPTP formation, although a molecular model for its transition to the mPTP is still lacking. Recently, the resolution of the F1Fo ATP synthase structure by cryogenic electron microscopy led to a model for mPTP gating. The elusive molecular nature of the mPTP is now being clarified, marking a turning point for understanding mitochondrial biology and its pathophysiological ramifications. This Review provides an up-to-date reference for the understanding of the mammalian mPTP and its cellular functions. We review current insights into the molecular mechanisms of mPT and validated observations - from studies in vivo or in artificial membranes - on mPTP activity and functions. We end with a discussion of the contribution of the mPTP to human disease. Throughout the Review, we highlight the multiple unanswered questions and, when applicable, we also provide alternative interpretations of the recent discoveries.
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Simpson DS, Pang J, Weir A, Kong IY, Fritsch M, Rashidi M, Cooney JP, Davidson KC, Speir M, Djajawi TM, Hughes S, Mackiewicz L, Dayton M, Anderton H, Doerflinger M, Deng Y, Huang AS, Conos SA, Tye H, Chow SH, Rahman A, Norton RS, Naderer T, Nicholson SE, Burgio G, Man SM, Groom JR, Herold MJ, Hawkins ED, Lawlor KE, Strasser A, Silke J, Pellegrini M, Kashkar H, Feltham R, Vince JE. Interferon-γ primes macrophages for pathogen ligand-induced killing via a caspase-8 and mitochondrial cell death pathway. Immunity 2022; 55:423-441.e9. [PMID: 35139355 PMCID: PMC8822620 DOI: 10.1016/j.immuni.2022.01.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/19/2021] [Accepted: 01/05/2022] [Indexed: 12/12/2022]
Abstract
Cell death plays an important role during pathogen infections. Here, we report that interferon-γ (IFNγ) sensitizes macrophages to Toll-like receptor (TLR)-induced death that requires macrophage-intrinsic death ligands and caspase-8 enzymatic activity, which trigger the mitochondrial apoptotic effectors, BAX and BAK. The pro-apoptotic caspase-8 substrate BID was dispensable for BAX and BAK activation. Instead, caspase-8 reduced pro-survival BCL-2 transcription and increased inducible nitric oxide synthase (iNOS), thus facilitating BAX and BAK signaling. IFNγ-primed, TLR-induced macrophage killing required iNOS, which licensed apoptotic caspase-8 activity and reduced the BAX and BAK inhibitors, A1 and MCL-1. The deletion of iNOS or caspase-8 limited SARS-CoV-2-induced disease in mice, while caspase-8 caused lethality independent of iNOS in a model of hemophagocytic lymphohistiocytosis. These findings reveal that iNOS selectively licenses programmed cell death, which may explain how nitric oxide impacts disease severity in SARS-CoV-2 infection and other iNOS-associated inflammatory conditions.
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Affiliation(s)
- Daniel S. Simpson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Jiyi Pang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia,College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ashley Weir
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Isabella Y. Kong
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Melanie Fritsch
- Institute for Molecular Immunology, Centre for Molecular Medicine Cologne and Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases, University of Cologne, Cologne, 50931, Germany
| | - Maryam Rashidi
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - James P. Cooney
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kathryn C. Davidson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Mary Speir
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Tirta M. Djajawi
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Sebastian Hughes
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Liana Mackiewicz
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Merle Dayton
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Holly Anderton
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marcel Doerflinger
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Yexuan Deng
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Allan Shuai Huang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Stephanie A. Conos
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Hazel Tye
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Seong H. Chow
- The Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Arfatur Rahman
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - Raymond S. Norton
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia,ARC Centre for Fragment-Based Design, Monash University, Parkville, VIC, 3052, Australia
| | - Thomas Naderer
- The Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Sandra E. Nicholson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Gaetan Burgio
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Joanna R. Groom
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marco J. Herold
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Edwin D. Hawkins
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kate E. Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - John Silke
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marc Pellegrini
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Hamid Kashkar
- Institute for Molecular Immunology, Centre for Molecular Medicine Cologne and Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases, University of Cologne, Cologne, 50931, Germany
| | - Rebecca Feltham
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia.
| | - James E. Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia,Corresponding author
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Bombaci G, Sarangdhar MA, Andina N, Tardivel A, Yu ECW, Mackie GM, Pugh M, Ozan VB, Banz Y, Spinetti T, Hirzel C, Youd E, Schefold JC, Taylor G, Gazdhar A, Bonadies N, Angelillo-Scherrer A, Schneider P, Maslowski KM, Allam R. LRR-protein RNH1 dampens the inflammasome activation and is associated with COVID-19 severity. Life Sci Alliance 2022; 5:5/6/e202101226. [PMID: 35256513 PMCID: PMC8922048 DOI: 10.26508/lsa.202101226] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 12/12/2022] Open
Abstract
RNH1 prevents inflammation by inhibiting inflammasome activation through controlling caspase-1 protein levels. In COVID-19 patients, RNH1 expression levels were negatively associated with disease severity and inflammation, suggesting a role for RNH1 in SARS-CoV-2–mediated inflammation and pathology. Inflammasomes are cytosolic innate immune sensors of pathogen infection and cellular damage that induce caspase-1–mediated inflammation upon activation. Although inflammation is protective, uncontrolled excessive inflammation can cause inflammatory diseases and can be detrimental, such as in coronavirus disease (COVID-19). However, the underlying mechanisms that control inflammasome activation are incompletely understood. Here we report that the leucine-rich repeat (LRR) protein ribonuclease inhibitor (RNH1), which shares homology with LRRs of NLRP (nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain containing) proteins, attenuates inflammasome activation. Deletion of RNH1 in macrophages increases interleukin (IL)-1β production and caspase-1 activation in response to inflammasome stimulation. Mechanistically, RNH1 decreases pro-IL-1β expression and induces proteasome-mediated caspase-1 degradation. Corroborating this, mouse models of monosodium urate (MSU)-induced peritonitis and lipopolysaccharide (LPS)-induced endotoxemia, which are dependent on caspase-1, respectively, show increased neutrophil infiltration and lethality in Rnh1−/− mice compared with wild-type mice. Furthermore, RNH1 protein levels were negatively related with disease severity and inflammation in hospitalized COVID-19 patients. We propose that RNH1 is a new inflammasome regulator with relevance to COVID-19 severity.
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Affiliation(s)
- Giuseppe Bombaci
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Mayuresh Anant Sarangdhar
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Nicola Andina
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Aubry Tardivel
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Eric Chi-Wang Yu
- Department of Biochemistry, University of Lausanne, Lausanne, Switzerland
| | - Gillian M Mackie
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Matthew Pugh
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Vedat Burak Ozan
- Department for BioMedical Research, University of Bern, Bern, Switzerland
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Yara Banz
- Institute of Pathology, University of Bern, Bern, Switzerland
| | - Thibaud Spinetti
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cedric Hirzel
- Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Esther Youd
- School of Medicine, Dentistry and Nursing, Forensic Medicine and Science. University of Glasgow, Scotland, UK
| | - Joerg C Schefold
- Department of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Graham Taylor
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Amiq Gazdhar
- Department for BioMedical Research, University of Bern, Bern, Switzerland
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nicolas Bonadies
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Anne Angelillo-Scherrer
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Pascal Schneider
- Department of Biochemistry, University of Lausanne, Lausanne, Switzerland
| | - Kendle M Maslowski
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Ramanjaneyulu Allam
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
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Zhou C, Zheng J, Fan Y, Wu J. TI: NLRP3 Inflammasome-Dependent Pyroptosis in CNS Trauma: A Potential Therapeutic Target. Front Cell Dev Biol 2022; 10:821225. [PMID: 35186932 PMCID: PMC8847380 DOI: 10.3389/fcell.2022.821225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022] Open
Abstract
Central nervous system (CNS) trauma, including traumatic brain injury (TBI) and traumatic spinal cord injury (SCI), is characterized by high morbidity, disability, and mortality. TBI and SCI have similar pathophysiological mechanisms and are often accompanied by serious inflammatory responses. Pyroptosis, an inflammation-dependent programmed cell death, is becoming a major problem in CNS post-traumatic injury. Notably, the pyrin domain containing 3 (NLRP3) inflammasome is a key protein in the pyroptosis signaling pathway. Therefore, underlying mechanism of the NLRP3 inflammasome in the development of CNS trauma has attracted much attention. In this review, we briefly summarize the molecular mechanisms of NLRP3 inflammasome in pyroptosis signaling pathway, including its prime and activation. Moreover, the dynamic expression pattern, and roles of the NLRP3 inflammasome in CNS post-traumatic injury are summarized. The therapeutic applications of NLRP3 inflammasome activation inhibitors are also discussed.
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Affiliation(s)
- Conghui Zhou
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinfeng Zheng
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunpeng Fan
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Junsong Wu
- Department of Orthopaedics of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Junsong Wu,
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Dutta D, Liu J, Xiong H. NLRP3 inflammasome activation and SARS-CoV-2-mediated hyperinflammation, cytokine storm and neurological syndromes. Int J Physiol Pathophysiol Pharmacol 2022; 14:138-160. [PMID: 35891930 PMCID: PMC9301183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/02/2022] [Indexed: 04/13/2023]
Abstract
Despite the introduction of vaccines and drugs for SARS-CoV-2, the COVID-19 pandemic continues to spread throughout the world. In severe COVID-19 patients, elevated levels of proinflammatory cytokines have been detected in the blood, lung cells, and bronchoalveolar lavage, which is referred to as a cytokine storm, a consequence of overactivation of the NLR family pyrin domain-containing protein 3 (NLRP3) inflammasome and resultant excessive cytokine production. The hyperinflammatory response and cytokine storm cause multiorgan impairment including the central nervous system, in addition to a detriment to the respiratory system. Hyperactive NLRP3 inflammasome, due to dysregulated immune response, is the primary cause of COVID-19 severity. The severity could be enhanced due to viral evolution leading to the emergence of mutated variants of concern, such as delta and omicron. In this review, we elaborate on the inflammatory responses associated with the NLRP3 inflammasome activation in COVID-19 pathogenesis, the mechanisms for the NLRP3 inflammasome activation and pathway involved, cytokine storm, and neurological complications as long-term consequences of SARS-CoV-2 infection. Also discussed is the therapeutic potential of NLRP3 inflammasome inhibitors for the treatment of COVID-19.
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Affiliation(s)
- Debashis Dutta
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
| | - Jianuo Liu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
| | - Huangui Xiong
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
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Parodi-Rullán RM, Javadov S, Fossati S. Dissecting the Crosstalk between Endothelial Mitochondrial Damage, Vascular Inflammation, and Neurodegeneration in Cerebral Amyloid Angiopathy and Alzheimer's Disease. Cells 2021; 10:cells10112903. [PMID: 34831125 PMCID: PMC8616424 DOI: 10.3390/cells10112903] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 12/25/2022] Open
Abstract
Alzheimer’s disease (AD) is the most prevalent cause of dementia and is pathologically characterized by the presence of parenchymal senile plaques composed of amyloid β (Aβ) and intraneuronal neurofibrillary tangles of hyperphosphorylated tau protein. The accumulation of Aβ also occurs within the cerebral vasculature in over 80% of AD patients and in non-demented individuals, a condition called cerebral amyloid angiopathy (CAA). The development of CAA is associated with neurovascular dysfunction, blood–brain barrier (BBB) leakage, and persistent vascular- and neuro-inflammation, eventually leading to neurodegeneration. Although pathologically AD and CAA are well characterized diseases, the chronology of molecular changes that lead to their development is still unclear. Substantial evidence demonstrates defects in mitochondrial function in various cells of the neurovascular unit as well as in the brain parenchyma during the early stages of AD and CAA. Dysfunctional mitochondria release danger-associated molecular patterns (DAMPs) that activate a wide range of inflammatory pathways. In this review, we gather evidence to postulate a crucial role of the mitochondria, specifically of cerebral endothelial cells, as sensors and initiators of Aβ-induced vascular inflammation. The activated vasculature recruits circulating immune cells into the brain parenchyma, leading to the development of neuroinflammation and neurodegeneration in AD and CAA.
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Affiliation(s)
- Rebecca M. Parodi-Rullán
- Alzheimer’s Center at Temple, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
| | - Sabzali Javadov
- Department of Physiology, University of Puerto Rico School of Medicine, San Juan, PR 00921, USA;
| | - Silvia Fossati
- Alzheimer’s Center at Temple, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
- Correspondence: ; Tel.: +1-215-707-6046
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Babamale AO, Chen ST. Nod-like Receptors: Critical Intracellular Sensors for Host Protection and Cell Death in Microbial and Parasitic Infections. Int J Mol Sci 2021; 22:11398. [PMID: 34768828 PMCID: PMC8584118 DOI: 10.3390/ijms222111398] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/04/2021] [Accepted: 10/19/2021] [Indexed: 12/14/2022] Open
Abstract
Cell death is an essential immunological apparatus of host defense, but dysregulation of mutually inclusive cell deaths poses severe threats during microbial and parasitic infections leading to deleterious consequences in the pathological progression of infectious diseases. Nucleotide-binding oligomerization domain (NOD)-Leucine-rich repeats (LRR)-containing receptors (NLRs), also called nucleotide-binding oligomerization (NOD)-like receptors (NLRs), are major cytosolic pattern recognition receptors (PRRs), their involvement in the orchestration of innate immunity and host defense against bacteria, viruses, fungi and parasites, often results in the cleavage of gasdermin and the release of IL-1β and IL-18, should be tightly regulated. NLRs are functionally diverse and tissue-specific PRRs expressed by both immune and non-immune cells. Beyond the inflammasome activation, NLRs are also involved in NF-κB and MAPK activation signaling, the regulation of type I IFN (IFN-I) production and the inflammatory cell death during microbial infections. Recent advancements of NLRs biology revealed its possible interplay with pyroptotic cell death and inflammatory mediators, such as caspase 1, caspase 11, IFN-I and GSDMD. This review provides the most updated information that caspase 8 skews the NLRP3 inflammasome activation in PANoptosis during pathogen infection. We also update multidimensional roles of NLRP12 in regulating innate immunity in a content-dependent manner: novel interference of NLRP12 on TLRs and NOD derived-signaling cascade, and the recently unveiled regulatory property of NLRP12 in production of type I IFN. Future prospects of exploring NLRs in controlling cell death during parasitic and microbial infection were highlighted.
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Affiliation(s)
- Abdulkareem Olarewaju Babamale
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming Chiao Tung University and Academia Sinica, Taipei 11266, Taiwan;
- Parasitology Unit, Faculty of Life Sciences, University of Ilorin, Ilorin 240003, Nigeria
| | - Szu-Ting Chen
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming Chiao Tung University and Academia Sinica, Taipei 11266, Taiwan;
- Institute of Clinical Medicine, National Yang-Ming Chiao Tung University, Taipei 11266, Taiwan
- Cancer Progression Research Center, National Yang-Ming Chiao Tung University, Taipei 11266, Taiwan
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Abstract
The NLRP3 inflammasome is a cytosolic multiprotein complex composed of the innate immune receptor protein NLRP3, adapter protein ASC, and inflammatory protease caspase-1 that responds to microbial infection, endogenous danger signals, and environmental stimuli. The assembled NLRP3 inflammasome can activate the protease caspase-1 to induce gasdermin D-dependent pyroptosis and facilitate the release of IL-1β and IL-18, which contribute to innate immune defense and homeostatic maintenance. However, aberrant activation of the NLRP3 inflammasome is associated with the pathogenesis of various inflammatory diseases, such as diabetes, cancer, and Alzheimer's disease. Recent studies have revealed that NLRP3 inflammasome activation contributes to not only pyroptosis but also other types of cell death, including apoptosis, necroptosis, and ferroptosis. In addition, various effectors of cell death have been reported to regulate NLRP3 inflammasome activation, suggesting that cell death is closely related to NLRP3 inflammasome activation. In this review, we summarize the inextricable link between NLRP3 inflammasome activation and cell death and discuss potential therapeutics that target cell death effectors in NLRP3 inflammasome-associated diseases.
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Affiliation(s)
- Yi Huang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wen Xu
- Neurology Department, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Rongbin Zhou
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
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Yu Q, Zhao T, Liu M, Cao D, Li J, Li Y, Xia M, Wang X, Zheng T, Liu C, Mu X, Sun P. Targeting NLRP3 Inflammasome in Translational Treatment of Nervous System Diseases: An Update. Front Pharmacol 2021; 12:707696. [PMID: 34526897 PMCID: PMC8435574 DOI: 10.3389/fphar.2021.707696] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/18/2021] [Indexed: 12/14/2022] Open
Abstract
Neuroinflammatory response is the immune response mechanism of the innate immune system of the central nervous system. Both primary and secondary injury can activate neuroinflammatory response. Among them, the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome plays a key role in the inflammatory response of the central system. Inflammasome is a type of pattern recognition receptor, a cytoplasmic polyprotein complex composed of members of the Nod-like receptor (NLR) family and members of the pyrin and HIN domain (PYHIN) family, which can be affected by a variety of pathogen-related molecular patterns or damage-related molecular patterns are activated. As one of the research hotspots in the field of medical research in recent years, there are increasing researches on immune function abnormalities in the onset of neurological diseases such as depression, AD, ischemic brain injury and cerebral infarction, the NLRP3 inflammasome causes the activated caspase-1 to cleave pre-interleukin-1β and pre-interleukin-18 into mature interleukin-1β and interleukin-18, in turn, a large number of inflammatory factors are produced, which participate in the occurrence and development of the above-mentioned diseases. Targeted inhibition of the activation of inflammasomes can reduce the inflammatory response, promote the survival of nerve cells, and achieve neuroprotective effects. This article reviews NLRP3 inflammasome's role in neurological diseases and related regulatory mechanisms, which providing references for future research in this field.
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Affiliation(s)
- Qingying Yu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tingting Zhao
- School of Foreign Languages, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Molin Liu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Duo Cao
- College of Life Science, Yan’an University, Yan’an, China
| | - Jiaxin Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yanling Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Mengyao Xia
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiaoyu Wang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tingting Zheng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chuanguo Liu
- Innovation Research Institute of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiangyu Mu
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Peng Sun
- Innovation Research Institute of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
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Pandey A, Shen C, Feng S, Man SM. Cell biology of inflammasome activation. Trends Cell Biol 2021; 31:924-939. [PMID: 34284921 DOI: 10.1016/j.tcb.2021.06.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/11/2021] [Accepted: 06/21/2021] [Indexed: 12/21/2022]
Abstract
Organelles are critical structures in mediating the assembly and activation of inflammasomes in mammalian cells, resulting in inflammation and cell death. Assembly of inflammasomes can occur at the mitochondria, endoplasmic reticulum, nucleus, trans-Golgi network, or pathogen surface, facilitated by the overarching architecture of the cytoskeleton. NLRP3 and Pyrin inflammasome sensors may form smaller speckles and converge on a single larger speck at the microtubule-organizing center (MTOC). This signaling hub activates multiple mammalian inflammatory and apoptotic caspases, cytokine substrates, the pore-forming protein gasdermin D, and the plasma membrane rupture protein ninjurin-1 (NINJ1), allowing pyroptosis, cellular disintegration, and inflammation to ensue. In this review, we highlight the role of mammalian cell types and organellar architectures in executing inflammasome responses.
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Affiliation(s)
- Abhimanu Pandey
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Cheng Shen
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Shouya Feng
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia.
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Li Y, Shi D, Zhang H, Yao X, Wang S, Wang R, Ren K. The Application of Functional Magnetic Resonance Imaging in Type 2 Diabetes Rats With Contrast-Induced Acute Kidney Injury and the Associated Innate Immune Response. Front Physiol 2021; 12:669581. [PMID: 34267672 PMCID: PMC8276794 DOI: 10.3389/fphys.2021.669581] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/27/2021] [Indexed: 12/14/2022] Open
Abstract
AIMS Contrast-induced acute kidney injury (CI-AKI) is the third most common in-hospital acquired AKI, and its mechanism is not fully clear. Its morbidity increases among populations with chronic kidney disease (CKD), older age, diabetes mellitus (DM), and so on. Immediate and effective noninvasive diagnostic methods are lacking, so CI-AKI often prolongs hospital stays and increases extra medical costs. This study aims to explore the possibility of diagnosing CI-AKI with functional magnetic resonance imaging (fMRI) based on type 2 DM rats. Moreover, we attempt to reveal the immune response in CI-AKI and to clarify why DM is a predisposing factor for CI-AKI. METHODS A type 2 DM rat model was established by feeding a high-fat and high-sugar diet combined with streptozotocin (STZ) injection. Iodixanol-320 was the contrast medium (CM) administered to rats. Images were obtained with a SIEMENS Skyra 3.0-T magnetic resonance imager. Renal histopathology was evaluated using H&E staining and immunohistochemistry (IHC). The innate immune response was revealed through western blotting and flow cytometry. RESULTS Blood oxygenation level-dependent (BOLD) imaging and intravoxel incoherent motion (IVIM) imaging can be used to predict and diagnose CI-AKI effectively. The R 2 ∗ value (r > 0.6, P < 0.0001) and D value (| r| > 0.5, P < 0.0001) are strongly correlated with histopathological scores. The NOD-like receptor pyrin 3 (NLRP3) inflammasome participates in CI-AKI and exacerbates CI-AKI in DM rats. Moreover, the percentages of neutrophils and M1 macrophages increase dramatically in rat kidneys after CM injection (neutrophils range from 56.3 to 56.6% and M1 macrophages from 48 to 54.1% in normal rats, whereas neutrophils range from 85.5 to 92.4% and M1 macrophages from 82.1 to 89.8% in DM rats). CONCLUSIONS/INTERPRETATION BOLD and IVIM-D can be effective noninvasive tools in predicting CI-AKI. The innate immune response is activated during the progression of CI-AKI and DM will exacerbate this progression.
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Affiliation(s)
- Yanfei Li
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Dafa Shi
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Haoran Zhang
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Xiang Yao
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Siyuan Wang
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
| | - Rui Wang
- Department of Basic Medical Sciences, School of Medicine, Xiamen University, Xiamen, China
| | - Ke Ren
- Department of Radiology, Xiang’an Hospital of Xiamen University, Xiamen, China
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Wen S, Li Y, Shen X, Wang Z, Zhang K, Zhang J, Mei X. Protective Effects of Zinc on Spinal Cord Injury. J Mol Neurosci 2021. [PMID: 34160751 DOI: 10.1007/s12031-021-01859-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 05/10/2021] [Indexed: 01/04/2023]
Abstract
Spinal cord injury is a serious disease of the central nervous system, but there is no effective treatment. And zinc is an essential nutrient for human body and participates in many physiological processes, such as immune response, homeostasis, oxidative stress, cell cycle progression, DNA replication, DNA damage repair, apoptosis, and aging. This article mainly summarizes that zinc could predict the prognosis and treat the spinal cord injury. Especially, zinc could help to inhibit inflammation, regulate autophagy, and reduce oxidative stress. However, excessive zinc will damage neurons.
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47
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Chao-Yang G, Peng C, Hai-Hong Z. Roles of NLRP3 inflammasome in intervertebral disc degeneration. Osteoarthritis Cartilage 2021; 29:793-801. [PMID: 33609693 DOI: 10.1016/j.joca.2021.02.204] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/21/2020] [Accepted: 02/08/2021] [Indexed: 02/02/2023]
Abstract
Intervertebral disc degeneration (IVDD) is one of the leading causes of low back pain and one of the most common health problems in the world. The nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing-3 (NLRP3) inflammasome, as a pattern recognition receptor, has been shown to be associated with the pathological processes of many diseases in recent years. With the exploration of the mechanism of IVDD, recent studies have shown that activation of the NLRP3 inflammasome is associated with intervertebral disc (IVD) inflammation, pyroptosis, extracellular matrix degradation and apoptosis of IVD cells. In this review, we summarize the structural characteristics of NLRP3 inflammasome and the activation signalling mechanisms. We also describe the role of the NLRP3 inflammasome in the pathological process of IVDD and the application of the targeting the NLRP3 inflammasome in IVDD treatment.
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Affiliation(s)
- G Chao-Yang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, PR China
| | - C Peng
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, PR China
| | - Z Hai-Hong
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, PR China.
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Speir M, Djajawi TM, Conos SA, Tye H, Lawlor KE. Targeting RIP Kinases in Chronic Inflammatory Disease. Biomolecules 2021; 11:biom11050646. [PMID: 33924766 PMCID: PMC8146010 DOI: 10.3390/biom11050646] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic inflammatory disorders are characterised by aberrant and exaggerated inflammatory immune cell responses. Modes of extrinsic cell death, apoptosis and necroptosis, have now been shown to be potent drivers of deleterious inflammation, and mutations in core repressors of these pathways underlie many autoinflammatory disorders. The receptor-interacting protein (RIP) kinases, RIPK1 and RIPK3, are integral players in extrinsic cell death signalling by regulating the production of pro-inflammatory cytokines, such as tumour necrosis factor (TNF), and coordinating the activation of the NOD-like receptor protein 3 (NLRP3) inflammasome, which underpin pathological inflammation in numerous chronic inflammatory disorders. In this review, we firstly give an overview of the inflammatory cell death pathways regulated by RIPK1 and RIPK3. We then discuss how dysregulated signalling along these pathways can contribute to chronic inflammatory disorders of the joints, skin, and gastrointestinal tract, and discuss the emerging evidence for targeting these RIP kinases in the clinic.
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Affiliation(s)
- Mary Speir
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (M.S.); (T.M.D.); (S.A.C.); (H.T.)
- Department of Molecular and Translational Science, Monash University, Clayton, VIC 3168, Australia
| | - Tirta M. Djajawi
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (M.S.); (T.M.D.); (S.A.C.); (H.T.)
- Department of Molecular and Translational Science, Monash University, Clayton, VIC 3168, Australia
| | - Stephanie A. Conos
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (M.S.); (T.M.D.); (S.A.C.); (H.T.)
- Department of Molecular and Translational Science, Monash University, Clayton, VIC 3168, Australia
| | - Hazel Tye
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (M.S.); (T.M.D.); (S.A.C.); (H.T.)
| | - Kate E. Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (M.S.); (T.M.D.); (S.A.C.); (H.T.)
- Department of Molecular and Translational Science, Monash University, Clayton, VIC 3168, Australia
- Correspondence: ; Tel.: +61-85722700
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Neuwirt E, Gorka O, Saller BS, Groß CJ, Madl T, Groß O. NLRP3 as a sensor of metabolism gone awry. Curr Opin Biotechnol 2021; 68:300-9. [PMID: 33862489 DOI: 10.1016/j.copbio.2021.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 12/28/2022]
Abstract
The NLRP3 inflammasome is an important player in innate immunity and pathogenic inflammation. Numerous studies have implicated it in sensing endogenous danger signals, yet the precise mechanisms remain unknown. Here, we review the current knowledge on the organismal and cellular metabolic triggers engaging NLRP3, and the mechanisms involved in integrating the diverse signals.
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Choudhury SKM, Ma X, Abdullah SW, Zheng H. Activation and Inhibition of the NLRP3 Inflammasome by RNA Viruses. J Inflamm Res 2021; 14:1145-1163. [PMID: 33814921 PMCID: PMC8009543 DOI: 10.2147/jir.s295706] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/27/2021] [Indexed: 12/17/2022] Open
Abstract
Inflammation refers to the response of the immune system to viral, bacterial, and fungal infections, or other foreign particles in the body, which can involve the production of a wide array of soluble inflammatory mediators. It is important for the development of many RNA virus-infected diseases. The primary factors through which the infection becomes inflammation involve inflammasome. Inflammasomes are proteins complex that the activation is responsive to specific pathogens, host cell damage, and other environmental stimuli. Inflammasomes bring about the maturation of various pro-inflammatory cytokines such as IL-18 and IL-1β in order to mediate the innate immune defense mechanisms. Many RNA viruses and their components, such as encephalomyocarditis virus (EMCV) 2B viroporin, the viral RNA of hepatitis C virus, the influenza virus M2 viroporin, the respiratory syncytial virus (RSV) small hydrophobic (SH) viroporin, and the human rhinovirus (HRV) 2B viroporin can activate the Nod-like receptor (NLR) family pyrin domain-containing 3 (NLRP3) inflammasome to influence the inflammatory response. On the other hand, several viruses use virus-encoded proteins to suppress inflammation activation, such as the influenza virus NS1 protein and the measles virus (MV) V protein. In this review, we summarize how RNA virus infection leads to the activation or inhibition of the NLRP3 inflammasome.
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Affiliation(s)
- S K Mohiuddin Choudhury
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
| | - XuSheng Ma
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
| | - Sahibzada Waheed Abdullah
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
| | - HaiXue Zheng
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China
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