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Shen J, Xie P, Wang J, Yang F, Li S, Jiang H, Wu X, Zhou F, Li J. Nlrp6 protects from corticosterone-induced NSPC ferroptosis by modulating RIG-1/MAVS-mediated mitophagy. Redox Biol 2024; 73:103196. [PMID: 38772149 DOI: 10.1016/j.redox.2024.103196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/12/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024] Open
Abstract
Hippocampal neural stem/progenitor cells (NSPCs) are highly vulnerable to different stress stimuli, resulting in adult neurogenesis decline and eventual cognitive defects. Our previous study demonstrated that NOD-like receptor family pyrin domain-containing 6 (Nlrp6) highly expressed in NSPCs played a critical role in sustaining hippocampal neurogenesis to resist stress-induced depression, but the underlying mechnistms are still unclear. Here, we found that Nlrp6 depletion led to cognitive defects and hippocampal NSPC loss in mice. RNA-sequencing analysis of the primary NSPCs revealed that Nlrp6 deficiency altered gene expression profiles of mitochondrial energy generation and ferroptotic process. Upon siNlrp6 transfection, as well as corticosterone (CORT) exposure, downregulation of Nlrp6 suppressed retinoic acid-inducible gene I (RIG-1)/mitochondrial antiviral signaling proteins (MAVS)-mediated autophagy, but drove NSPC ferroptotic death. More interesting, short chain fatty acids (SCFAs) upregulated Nlrp6 expression and promoted RIG-1/MAVS-mediated mitophagy, preventing CORT-induced NSPC ferroptosis. Our study further demonstrates that Nlrp6 should be a sensor for RIG-1/MAVS-mediated mitophagy and play a critical role in maintain mitochondrial homeostasis of hippocampal NSPCs. These results suggests that Nlrp6 should be a potential drug target to combat neurodegenerative diseases relative with chronic stress.
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Affiliation(s)
- Jingyan Shen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Pengfei Xie
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Junhan Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China; State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Fan Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Shengjie Li
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, 211171, China
| | - Haitao Jiang
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, 211171, China
| | - Xuefeng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Feng Zhou
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, 211171, China.
| | - Jianmei Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
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2
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Xu Z, Kombe Kombe AJ, Deng S, Zhang H, Wu S, Ruan J, Zhou Y, Jin T. NLRP inflammasomes in health and disease. MOLECULAR BIOMEDICINE 2024; 5:14. [PMID: 38644450 PMCID: PMC11033252 DOI: 10.1186/s43556-024-00179-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 03/20/2024] [Indexed: 04/23/2024] Open
Abstract
NLRP inflammasomes are a group of cytosolic multiprotein oligomer pattern recognition receptors (PRRs) involved in the recognition of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs) produced by infected cells. They regulate innate immunity by triggering a protective inflammatory response. However, despite their protective role, aberrant NLPR inflammasome activation and gain-of-function mutations in NLRP sensor proteins are involved in occurrence and enhancement of non-communicating autoimmune, auto-inflammatory, and neurodegenerative diseases. In the last few years, significant advances have been achieved in the understanding of the NLRP inflammasome physiological functions and their molecular mechanisms of activation, as well as therapeutics that target NLRP inflammasome activity in inflammatory diseases. Here, we provide the latest research progress on NLRP inflammasomes, including NLRP1, CARD8, NLRP3, NLRP6, NLRP7, NLRP2, NLRP9, NLRP10, and NLRP12 regarding their structural and assembling features, signaling transduction and molecular activation mechanisms. Importantly, we highlight the mechanisms associated with NLRP inflammasome dysregulation involved in numerous human auto-inflammatory, autoimmune, and neurodegenerative diseases. Overall, we summarize the latest discoveries in NLRP biology, their forming inflammasomes, and their role in health and diseases, and provide therapeutic strategies and perspectives for future studies about NLRP inflammasomes.
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Affiliation(s)
- Zhihao Xu
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Arnaud John Kombe Kombe
- Laboratory of Structural Immunology, 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, 230027, China
| | - Shasha Deng
- Laboratory of Structural Immunology, 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, 230027, China
| | - Hongliang Zhang
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Songquan Wu
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Jianbin Ruan
- Department of Immunology, University of Connecticut Health Center, Farmington, 06030, USA.
| | - Ying Zhou
- Department of Obstetrics and Gynecology, Core Facility Center, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China.
| | - Tengchuan Jin
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China.
- Laboratory of Structural Immunology, 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, 230027, China.
- Department of Obstetrics and Gynecology, Core Facility Center, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China.
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, Anhui, China.
- Biomedical Sciences and Health Laboratory of Anhui Province, University of Science & Technology of China, Hefei, 230027, China.
- Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, 230001, China.
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3
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Chang L, Xu L, Tian Y, Liu Z, Song M, Li S, Zhang X, Chen Y, Hao Q, Lu Y, Zhen Y. NLRP6 deficiency suppresses colorectal cancer liver metastasis growth by modulating M-MDSC-induced immunosuppressive microenvironment. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167035. [PMID: 38278335 DOI: 10.1016/j.bbadis.2024.167035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Colorectal cancer liver metastasis (CRLM) a profound influence on the prognosis of patients with colorectal cancer (CRC), prompting a comprehensive inquiry into its underlying mechanisms. Amidst the multifaceted tumor microenvironment, myeloid-derived suppressor cells (MDSCs) have emerged as pivotal orchestrators of immune modulation. However, their specific contributions to the CRLM have not been explored. The role of NLRP6, a member of the NOD-like receptor family, is of interest. Employing a liver metastasis model, our investigation revealed a heightened accumulation of monocytic MDSCs (M-MDSCs) within metastatic sites, culminating in an immunosuppressive milieu characterized by depleted CD8+ T cell populations. Remarkably, the absence of NLRP6 disrupts this intricate immunosuppressive network, highlighting its nuanced role in sculpting the trajectory of CRLM. This study elucidates the interplay between NLRP6 and MDSCs, potentially guiding novel therapeutic strategies to recalibrate the immune microenvironment in CRLM and enhance patient outcomes.
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Affiliation(s)
- Liangzheng Chang
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China; Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Lei Xu
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China; Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Yuying Tian
- Inner Mongolia Medical University, Hohhot, Inner Mongolia 010107, China
| | - Zherui Liu
- Peking University 302 Clinical Medical School, Beijing 100039, China; Comprehensive Liver Cancer Center, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Meiru Song
- The Fifth Clinical Medical College of Anhui Medical University, Beijing 100039, China
| | - Shuang Li
- Peking University 302 Clinical Medical School, Beijing 100039, China; Comprehensive Liver Cancer Center, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Xinfeng Zhang
- The Fifth Clinical Medical College of Anhui Medical University, Beijing 100039, China
| | - Yue Chen
- Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Qiuyao Hao
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China; Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Yinying Lu
- Guizhou Medical University, Guiyang, Guizhou 550004, China; Peking University 302 Clinical Medical School, Beijing 100039, China; The Fifth Clinical Medical College of Anhui Medical University, Beijing 100039, China; Comprehensive Liver Cancer Center, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
| | - Yunhuan Zhen
- Department of Colorectal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China; Guizhou Medical University, Guiyang, Guizhou 550004, China.
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4
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Zhang H, Gao J, Tang Y, Jin T, Tao J. Inflammasomes cross-talk with lymphocytes to connect the innate and adaptive immune response. J Adv Res 2023; 54:181-193. [PMID: 36681114 DOI: 10.1016/j.jare.2023.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 10/15/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Innate and adaptive immunity are two different parts of the immune system that have different characteristics and work together to provide immune protection. Inflammasomes are a major part of the innate immune system that are expressed widely in myeloid cells and are responsible for inflammatory responses. Recent studies have shown that inflammasomes are also expressed and activated in lymphocytes, especially in T and B cells, to regulate the adaptive immune response. Activation of inflammasomes is also under the control of lymphocytes. Therefore, we propose that inflammasomes act as a bridge and they provide crosstalk between the innate and adaptive immune systems to obtain a fine balance in immune responses. AIM OF REVIEW This review systematially summarizes the interaction between inflammasomes and lymphocytes and describes the crosstalk between the innate and adaptive immune systems induced by inflammasomes, with the aim of providing new directions and important areas for further research. KEY SCIENTIFIC CONCEPTS OF REVIEW When considering the novel function of inflammasomes in various lymphocytes, attention should be given to the activity of specific inflammasomes in studies of lymphocyte function. Moreover, research on the function of various inflammasomes in lymphocytes will help advance knowledge on the mechanisms and treatment of various diseases, including autoimmune diseases and tumors. In addition, when studying inflammatory responses, inflammasomes in both lymphocytes and myeloid cells need to be considered.
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Affiliation(s)
- Hongliang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China; College of Medicine and Health, Lishui University, No. 1 Xueyuan Road, Liandu District, Lishui 323000, China
| | - Jie Gao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yujie Tang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Tengchuan Jin
- Laboratory of Structural Immunology, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Jinhui Tao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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5
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Chenuet P, Marquant Q, Fauconnier L, Youness A, Mellier M, Marchiol T, Rouxel N, Messaoud-Nacer Y, Maillet I, Ledru A, Quesniaux VFJ, Ryffel B, Horsnell W, Végran F, Apetoh L, Togbe D. NLRP6 negatively regulates type 2 immune responses in mice. Allergy 2022; 77:3320-3336. [PMID: 35615773 DOI: 10.1111/all.15388] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 04/05/2022] [Accepted: 05/02/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Inflammasomes are large protein complexes that assemble in the cytosol in response to danger such as tissue damage or infection. Following activation, inflammasomes trigger cell death and the release of biologically active forms of pro-inflammatory cytokines interleukin (IL)-1β and IL-18. NOD-like receptor family pyrin domain containing 6 (NLRP6) inflammasome is required for IL-18 secretion by intestinal epithelial cells, macrophages, and T cells, contributing to homeostasis and self-defense against pathogenic microbes. However, the involvement of NLRP6 in type 2 lung inflammation remains elusive. METHODS Wild-type (WT) and Nlrp6-/- mice were used. Birch pollen extract (BPE)-induced allergic lung inflammation, eosinophil recruitment, Th2-related cytokine and chemokine production, airway hyperresponsiveness, and lung histopathology, Th2 cell differentiation, GATA3, and Th2 cytokines expression, were determined. Nippostrongylus brasiliensis (Nb) infection, worm count in intestine, type 2 innate lymphoid cell (ILC2), and Th2 cells in lungs were evaluated. RESULTS We demonstrate in Nlrp6-/- mice that a mixed Th2/Th17 immune responses prevailed following birch pollen challenge with increased eosinophils, ILC2, Th2, and Th17 cell induction and reduced IL-18 production. Nippostrongylus brasiliensis infected Nlrp6-/- mice featured enhanced early expulsion of the parasite due to enhanced type 2 immune responses compared to WT hosts. In vitro, NLRP6 repressed Th2 polarization, as shown by increased Th2 cytokines and higher expression of the transcription factor GATA3 in the absence of NLRP6. Exogenous IL-18 administration partially reduced the enhanced airways inflammation in Nlrp6-/- mice. CONCLUSIONS In summary, our data identify NLRP6 as a negative regulator of type 2 immune responses.
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Affiliation(s)
| | - Quentin Marquant
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | | | - Ali Youness
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | | | | | | | - Yasmine Messaoud-Nacer
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | - Isabelle Maillet
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | | | - Valérie F J Quesniaux
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
| | - William Horsnell
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France.,Institute of Infectious Disease and Molecular Medicine and Division of Immunology, University of Cape Town 7925, South Africa & South African Medical Research Council, Cape Town, South Africa.,Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | | | | | - Dieudonnée Togbe
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orleans, Orleans-Cedex 2, France
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6
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Angosto-Bazarra D, Molina-López C, Pelegrín P. Physiological and pathophysiological functions of NLRP6: pro- and anti-inflammatory roles. Commun Biol 2022; 5:524. [PMID: 35650327 PMCID: PMC9160023 DOI: 10.1038/s42003-022-03491-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/12/2022] [Indexed: 12/26/2022] Open
Abstract
The nucleotide-binding oligomerization and leucine-rich repeat receptor (NLR) protein family consists of important immune sensors that form inflammasomes, a cytosolic multi-protein platform that induces caspase-1 activation and is involved in different inflammatory pathologies. The NLR family pyrin domain containing 6 (NLRP6) is a receptor that can signal by forming inflammasomes, but which can also play an important role without forming inflammasomes. NLRP6 regulates intestinal homeostasis and inflammation, but also is involved in cancer, the nervous system or liver diseases, with both protective and deleterious consequences. In the present article, we review the different roles of NLRP6 in these processes and offer new insights into NLRP6 activation. This review discusses emerging roles for the NLR family pyrin domain containing 6 receptor (NLRP6) in intestinal homeostasis, inflammation, cancer, the nervous system and liver disease.
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Affiliation(s)
- Diego Angosto-Bazarra
- Línea de Inflamación Molecular, Instituto Murciano de Investigación Biosanitaria IMIB-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, 30120, Murcia, Spain.
| | - Cristina Molina-López
- Línea de Inflamación Molecular, Instituto Murciano de Investigación Biosanitaria IMIB-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, 30120, Murcia, Spain
| | - Pablo Pelegrín
- Línea de Inflamación Molecular, Instituto Murciano de Investigación Biosanitaria IMIB-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, 30120, Murcia, Spain. .,Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30120, Murcia, Spain.
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7
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Kaya B, Doñas C, Wuggenig P, Diaz OE, Morales RA, Melhem H, Hernández PP, Kaymak T, Das S, Hruz P, Franc Y, Geier F, Ayata CK, Villablanca EJ, Niess JH. Lysophosphatidic Acid-Mediated GPR35 Signaling in CX3CR1 + Macrophages Regulates Intestinal Homeostasis. Cell Rep 2021; 32:107979. [PMID: 32755573 DOI: 10.1016/j.celrep.2020.107979] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 03/23/2020] [Accepted: 07/10/2020] [Indexed: 12/15/2022] Open
Abstract
Single-nucleotide polymorphisms in the gene encoding G protein-coupled receptor 35 (GPR35) are associated with increased risk of inflammatory bowel disease. However, the mechanisms by which GPR35 modulates intestinal immune homeostasis remain undefined. Here, integrating zebrafish and mouse experimental models, we demonstrate that intestinal Gpr35 expression is microbiota dependent and enhanced upon inflammation. Moreover, murine GPR35+ colonic macrophages are characterized by enhanced production of pro-inflammatory cytokines. We identify lysophosphatidic acid (LPA) as a potential endogenous ligand produced during intestinal inflammation, acting through GPR35 to induce tumor necrosis factor (Tnf) expression in macrophages. Mice lacking Gpr35 in CX3CR1+ macrophages aggravate colitis when exposed to dextran sodium sulfate, which is associated with decreased transcript levels of the corticosterone-generating gene Cyp11b1 and macrophage-derived Tnf. Administration of TNF in these mice restores Cyp11b1 expression and intestinal corticosterone production and ameliorates DSS-induced colitis. Our findings indicate that LPA signals through GPR35 in CX3CR1+ macrophages to maintain TNF-mediated intestinal homeostasis.
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Affiliation(s)
- Berna Kaya
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Cristian Doñas
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, 17176 Stockholm, Sweden; Center for Molecular Medicine (CMM), 17176 Stockholm, Sweden
| | - Philipp Wuggenig
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Oscar E Diaz
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, 17176 Stockholm, Sweden; Center for Molecular Medicine (CMM), 17176 Stockholm, Sweden
| | - Rodrigo A Morales
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, 17176 Stockholm, Sweden; Center for Molecular Medicine (CMM), 17176 Stockholm, Sweden
| | - Hassan Melhem
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | | | - Pedro P Hernández
- Institut Curie, PSL Research University, INSERM U934/CNRS UMR3215, Development and Homeostasis of Mucosal Tissues Group, 75005 Paris, France
| | - Tanay Kaymak
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Srustidhar Das
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, 17176 Stockholm, Sweden; Center for Molecular Medicine (CMM), 17176 Stockholm, Sweden
| | - Petr Hruz
- University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital of Basel, 4031 Basel, Switzerland
| | - Yannick Franc
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1011 Lausanne, Switzerland
| | - Florian Geier
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; Swiss Institute of Bioinformatics, 4031 Basel, Switzerland
| | - C Korcan Ayata
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland
| | - Eduardo J Villablanca
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, 17176 Stockholm, Sweden; Center for Molecular Medicine (CMM), 17176 Stockholm, Sweden.
| | - Jan Hendrik Niess
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital of Basel, 4031 Basel, Switzerland.
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8
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Venuprasad K, Theiss AL. NLRP6 in host defense and intestinal inflammation. Cell Rep 2021; 35:109043. [PMID: 33910012 PMCID: PMC8106960 DOI: 10.1016/j.celrep.2021.109043] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/21/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
NLRP6 is a member of the NLR (nucleotide-oligomerization domain-like receptor) family of proteins that recognize pathogen-derived factors and damage-associated molecular patterns in the cytosol. The function of NLRP6 has been attributed to the maintenance of epithelial integrity and host defense against microbial infections. Under some physiological conditions, NLRP6 forms a complex with ASC and caspase-1 or caspase-11 to form an inflammasome complex cleaving pro-interleukin-1β (IL-1β) and IL-18 into their biologically active forms. Here, we summarize recent advances in the understanding of the mechanisms of activation of the NLRP6 inflammasome and discuss its relevance to human disease.
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Affiliation(s)
- K Venuprasad
- Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Immunology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Arianne L Theiss
- Division of Gastroenterology and Hepatology, School of Medicine at the Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
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9
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Patankar JV, Chiriac MT, Lehmann M, Kühl AA, Atreya R, Becker C, Gonzalez-Acera M, Schmitt H, Gamez-Belmonte R, Mahapatro M, Diemand L, Hartmann L, Mascia F, Hracsko Z, Thonn V, Schödel L, Zielinska M, Yu Y, Erkert L, Li W, Zeitler M, Ruder B, Ganzleben I, Günther C, Voehringer D, Zundler S, Neurath MF, Siegmund B. Severe Acute Respiratory Syndrome Coronavirus 2 Attachment Receptor Angiotensin-Converting Enzyme 2 Is Decreased in Crohn's Disease and Regulated By Microbial and Inflammatory Signaling. Gastroenterology 2021; 160:925-928.e4. [PMID: 33075345 PMCID: PMC7567698 DOI: 10.1053/j.gastro.2020.10.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/23/2020] [Accepted: 10/12/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Jay Vasant Patankar
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | | | - Malte Lehmann
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Berlin, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany
| | - Anja A Kühl
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Berlin, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, iPATH.Berlin, Berlin, Germany
| | - Raja Atreya
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany; Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Christoph Becker
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany.
| | | | - Heike Schmitt
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | | | - Mousumi Mahapatro
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Leonard Diemand
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Leonie Hartmann
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Fabrizio Mascia
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Zsuzsanna Hracsko
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Veronika Thonn
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Lena Schödel
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Marta Zielinska
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Yuqiang Yu
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Lena Erkert
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Wei Li
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Melanie Zeitler
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Barbara Ruder
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ingo Ganzleben
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Claudia Günther
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen, Erlangen, Germany
| | - Sebastian Zundler
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine 1, University of Erlangen-Nuremberg, Erlangen, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany; Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Britta Siegmund
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Berlin, Germany; The Transregio 241 IBDome Consortium, Berlin, Germany
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10
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Bracey NA, Platnich JM, Lau A, Chung H, Hyndman ME, MacDonald JA, Chun J, Beck PL, Girardin SE, Gordon PM, Muruve DA. Tissue-selective alternate promoters guide NLRP6 expression. Life Sci Alliance 2020; 4:4/3/e202000897. [PMID: 33376129 PMCID: PMC7772780 DOI: 10.26508/lsa.202000897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
The NLRP6 innate immune sensor is regulated by tissue-selective alternate promoters that facilitate translational gene silencing outside of the intestinal epithelium in both humans and mice. The pryin domain (PYD) domain is involved in protein interactions that lead to assembly of immune-sensing complexes such as inflammasomes. The repertoire of PYD-containing genes expressed by a cell type arms tissues with responses against a range of stimuli. The transcriptional regulation of the PYD gene family however is incompletely understood. Alternative promoter utilization was identified as a mechanism regulating the tissue distribution of human PYD gene family members, including NLRP6 that is translationally silenced outside of intestinal tissue. Results show that alternative transcriptional promoters mediate NLRP6 silencing in mice and humans, despite no upstream genomic synteny. Human NLRP6 contains an internal alternative promoter within exon 2 of the PYD, resulting in a truncated mRNA in nonintestinal tissue. In mice, a proximal promoter was used that expanded the 5′ leader sequence restricting nuclear export and abolishing translational efficiency. Nlrp6 was dispensable in disease models targeting the kidney, which expresses noncanonical isoforms. Thus, alternative promoter use is a critical mechanism not just for isoform modulation but for determining expression profile and function of PYD family members.
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Affiliation(s)
- Nathan A Bracey
- Department of Medicine, University of Calgary, Calgary, Canada.,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
| | - Jaye M Platnich
- Department of Medicine, University of Alberta, Edmonton, Canada
| | - Arthur Lau
- Department of Medicine, University of Calgary, Calgary, Canada.,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
| | - Hyunjae Chung
- Department of Medicine, University of Calgary, Calgary, Canada.,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
| | - M Eric Hyndman
- Department of Surgery, University of Calgary, Calgary, Canada
| | - Justin A MacDonald
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Canada
| | - Justin Chun
- Department of Medicine, University of Calgary, Calgary, Canada.,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
| | - Paul L Beck
- Department of Medicine, University of Calgary, Calgary, Canada.,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
| | - Stephen E Girardin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Paul Mk Gordon
- Centre for Health Genomics and Informatics, University of Calgary, Calgary, Canada
| | - Daniel A Muruve
- Department of Medicine, University of Calgary, Calgary, Canada .,Snyder Institute for Chronic Disease, University of Calgary, Calgary, Canada
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11
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Expression of nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 6 in human dental pulp tissues and cells. Arch Oral Biol 2020; 117:104794. [DOI: 10.1016/j.archoralbio.2020.104794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 01/27/2023]
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12
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Abstract
NOD-like receptor family pyrin domain containing 6 (NLRP6) is a novel NLR family member, that shows high expression in the intestine and liver (in contrast to NLRP3 in myeloid cells), to regulate inflammation and host defense against microbes. NLRP6 is reported to involved in inflammasome activation, regulation of nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) signaling, antiviral interferon (IFN) signaling, mucus secretion, and antimicrobial peptide (AMP) production. Here, we discuss the recent findings as well as debates regarding: how NLRP6 is induced ("signal I″) and activated ("signal II"); its roles in intestinal cells and immune cells; how NLRP6 and NLRP9 coordinate to regulate the anti-viral immune response in the intestine; potential targeting of NLRP6 in human diseases.
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Affiliation(s)
- Runzhi Li
- Department of Digestive Disease, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, 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, 230027, China
| | - Shu Zhu
- Department of Digestive Disease, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, 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, 230027, China; School of Data Science, University of Science and Technology of China, Hefei, 230026, China; CAS Centre for Excellence in Cell and Molecular Biology, University of Science and Technology of China, Hefei, China.
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