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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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2
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Reynaud D, Alfaidy N, Collet C, Lemaitre N, Sergent F, Miege C, Soleilhac E, Assi AA, Murthi P, Courtois G, Fauvarque MO, Slim R, Benharouga M, Abi Nahed R. NLRP7 Enhances Choriocarcinoma Cell Survival and Camouflage in an Inflammasome Independent Pathway. Cells 2023; 12:cells12060857. [PMID: 36980199 PMCID: PMC10099745 DOI: 10.3390/cells12060857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
Background: Gestational choriocarcinoma (GC) is a highly malignant trophoblastic tumor that often develops from a complete hydatidiform mole (HM). NLRP7 is the major gene responsible for recurrent HM and is involved in the innate immune response, inflammation and apoptosis. NLRP7 can function in an inflammasome-dependent or -independent pathway. Recently, we have demonstrated that NLRP7 is highly expressed in GC tumor cells and contributes to their tumorigenesis. However, the underlying mechanisms are still unknown. Here, we investigated the mechanism by which NLRP7 controls these processes in malignant (JEG-3) and non-tumor (HTR8/SVneo) trophoblastic cells. Cell survival, dedifferentiation, camouflage, and aggressiveness were compared between normal JEG-3 cells or knockdown for NLRP7, JEG-3 Sh NLRP7. In addition, HTR8/SVneo cells overexpressing NLRP7 were used to determine the impact of NLRP7 overexpression on non-tumor cells. NLRP7 involvement in tumor cell growth and tolerance was further characterized in vivo using the metastatic mouse model of GC. Results: We demonstrate that NLRP7 (i) functions in an inflammasome-dependent and -independent manners in HTR8/SVneo and JEG-3 cells, respectively; (ii) differentially regulates the activity of NF-κB in tumor and non-tumor cells; (iii) increases malignant cell survival, dedifferentiation, and camouflage; and (iv) facilitates tumor cells colonization of the lungs in the preclinical model of GC. Conclusions: This study demonstrates for the first time the mechanism by which NLRP7, independently of its inflammasome machinery, contributes to GC growth and tumorigenesis. The clinical relevance of NLRP7 in this rare cancer highlights its potential therapeutic promise as a molecular target to treat resistant GC patients.
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Affiliation(s)
- Déborah Reynaud
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | - 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
- Correspondence: (N.A.); (R.A.N.); Tel.: +33-6-3207-3234 (N.A.); +33-7-702-7-1704 (R.A.N.)
| | - Constance Collet
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | - Nicolas Lemaitre
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | - Frederic Sergent
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | - Céline Miege
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | | | - Alaa Al Assi
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), Univeristy Grenoble Alpes, Inserm, 38000 Grenoble, France
| | - Padma Murthi
- Department of Pharmacology, Monash Biomedicine Discovery Institute, Monash University, Melbourne VIC 3800, Australia
- Department of Obstetrics and Gynaecology, University of Melbourne, Royal Women’s Hospital, Parkville, VIC 3502, Australia
| | - Gilles Courtois
- University Grenoble Alpes, Inserm, CEA, UA13 BGE, 38000 Grenoble, France
| | | | - Rima Slim
- Departments of Human Genetics and Obstetrics and Gynecology, McGill University Health Centre Research Institute, Montréal, QC H4A 3J1, Canada
| | - Mohamed Benharouga
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
| | - Roland Abi Nahed
- 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, University Grenoble Alpes and Centre Hospitalo-Universitaire Grenoble Alpes, CS 10217, CEDEX 9, 38043 Grenoble, France
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), Univeristy Grenoble Alpes, Inserm, 38000 Grenoble, France
- Correspondence: (N.A.); (R.A.N.); Tel.: +33-6-3207-3234 (N.A.); +33-7-702-7-1704 (R.A.N.)
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Modulation of Nod-like Receptor Expression in the Thymus during Early Pregnancy in Ewes. Vaccines (Basel) 2022; 10:vaccines10122128. [PMID: 36560538 PMCID: PMC9781860 DOI: 10.3390/vaccines10122128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/24/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
Nucleotide-binding oligomerization domain receptors (NOD-like receptors, NLRs) are involved in modulating the innate immune responses of the trophoblast and the placenta in normal pregnancy. The thymus participates in regulation of innate and adaptive immune responses. However, it is unclear whether expression of NLR is modulated in the maternal thymus during early pregnancy. In this study, thymuses were sampled at day 16 of the estrous cycle, and at days 13, 16 and 25 of gestation (n = 6 for each group) from ewes after slaughter. Different stages were chosen because the maternal thymus was under the different effects of interferon-tau and/or progesterone or not. RT-qPCR, Western blot and immunohistochemistry analysis were used to analyze the expression of the NLR family, including NOD1; NOD2; major histocompatibility complex class II transactivator (CIITA); NLR family apoptosis inhibitory protein (NAIP); nucleotide-binding oligomerization domain and Leucine-rich repeat and Pyrin domain containing protein 1 (NLRP1), NLRP3 and NLRP7. The results showed that expression level of NOD1 was changed with the pregnancy stages, and expression levels of NOD2, CIITA, NAIP, NLRP1, NLRP3 and NLRP7 mRNA and proteins were peaked at day 13 of pregnancy. The levels of NOD2 and CIITA were increased during early pregnancy. The stainings for NOD2 and NLRP7 proteins were located in epithelial reticular cells, capillaries and thymic corpuscles. In summary, pregnancy stages changed expression of NLR family in the maternal thymus, which may be related to the modulation of maternal thymic immune responses, and beneficial for normal pregnancy in sheep.
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Lara-Reyna S, Caseley EA, Topping J, Rodrigues F, Jimenez Macias J, Lawler SE, McDermott MF. Inflammasome activation: from molecular mechanisms to autoinflammation. Clin Transl Immunology 2022; 11:e1404. [PMID: 35832835 PMCID: PMC9262628 DOI: 10.1002/cti2.1404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammasomes are assembled by innate immune sensors that cells employ to detect a range of danger signals and respond with pro-inflammatory signalling. Inflammasomes activate inflammatory caspases, which trigger a cascade of molecular events with the potential to compromise cellular integrity and release the IL-1β and IL-18 pro-inflammatory cytokines. Several molecular mechanisms, working in concert, ensure that inflammasome activation is tightly regulated; these include NLRP3 post-translational modifications, ubiquitination and phosphorylation, as well as single-domain proteins that competitively bind to key inflammasome components, such as the CARD-only proteins (COPs) and PYD-only proteins (POPs). These diverse regulatory systems ensure that a suitable level of inflammation is initiated to counteract any cellular insult, while simultaneously preserving tissue architecture. When inflammasomes are aberrantly activated can drive excessive production of pro-inflammatory cytokines and cell death, leading to tissue damage. In several autoinflammatory conditions, inflammasomes are aberrantly activated with subsequent development of clinical features that reflect the degree of underlying tissue and organ damage. Several of the resulting disease complications may be successfully controlled by anti-inflammatory drugs and/or specific cytokine inhibitors, in addition to more recently developed small-molecule inhibitors. In this review, we will explore the molecular processes underlying the activation of several inflammasomes and highlight their role during health and disease. We also describe the detrimental effects of these inflammasome complexes, in some pathological conditions, and review current therapeutic approaches as well as future prospective treatments.
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Affiliation(s)
- Samuel Lara-Reyna
- Institute of Microbiology and Infection University of Birmingham Birmingham UK
| | - Emily A Caseley
- School of Biomedical Sciences, Faculty of Biological Sciences University of Leeds Leeds UK
| | - Joanne Topping
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, St James's University Hospital University of Leeds Leeds UK
| | - François Rodrigues
- AP-HP, Hôpital Tenon, Sorbonne Université, Service de Médecine interne Centre de Référence des Maladies Auto-inflammatoires et des Amyloses d'origine inflammatoire (CEREMAIA) Paris France
| | - Jorge Jimenez Macias
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA.,Brown Cancer Centre, Department of Pathology and Laboratory Medicine Brown University Providence Rhode Island USA
| | - Sean E Lawler
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA.,Brown Cancer Centre, Department of Pathology and Laboratory Medicine Brown University Providence Rhode Island USA
| | - Michael F McDermott
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, St James's University Hospital University of Leeds Leeds UK
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5
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Exploring the Role of Staphylococcus aureus in Inflammatory Diseases. Toxins (Basel) 2022; 14:toxins14070464. [PMID: 35878202 PMCID: PMC9318596 DOI: 10.3390/toxins14070464] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Staphylococcus aureus is a very common Gram-positive bacterium, and S. aureus infections play an extremely important role in a variety of diseases. This paper describes the types of virulence factors involved, the inflammatory cells activated, the process of host cell death, and the associated diseases caused by S. aureus. S. aureus can secrete a variety of enterotoxins and other toxins to trigger inflammatory responses and activate inflammatory cells, such as keratinocytes, helper T cells, innate lymphoid cells, macrophages, dendritic cells, mast cells, neutrophils, eosinophils, and basophils. Activated inflammatory cells can express various cytokines and induce an inflammatory response. S. aureus can also induce host cell death through pyroptosis, apoptosis, necroptosis, autophagy, etc. This article discusses S. aureus and MRSA (methicillin-resistant S. aureus) in atopic dermatitis, psoriasis, pulmonary cystic fibrosis, allergic asthma, food poisoning, sarcoidosis, multiple sclerosis, and osteomyelitis. Summarizing the pathogenic mechanism of Staphylococcus aureus provides a basis for the targeted treatment of Staphylococcus aureus infection.
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Jiang Q, Wang X, Huang E, Wang Q, Wen C, Yang G, Lu L, Cui D. Inflammasome and Its Therapeutic Targeting in Rheumatoid Arthritis. Front Immunol 2022; 12:816839. [PMID: 35095918 PMCID: PMC8794704 DOI: 10.3389/fimmu.2021.816839] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/21/2021] [Indexed: 12/30/2022] Open
Abstract
Inflammasome is a cytoplasmic multiprotein complex that facilitates the clearance of exogenous microorganisms or the recognition of endogenous danger signals, which is critically involved in innate inflammatory response. Excessive or abnormal activation of inflammasomes has been shown to contribute to the development of various diseases including autoimmune diseases, neurodegenerative changes, and cancers. Rheumatoid arthritis (RA) is a chronic and complex autoimmune disease, in which inflammasome activation plays a pivotal role in immune dysregulation and joint inflammation. This review summarizes recent findings on inflammasome activation and its effector mechanisms in the pathogenesis of RA and potential development of therapeutic targeting of inflammasome for the immunotherapy of RA.
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Affiliation(s)
- Qi Jiang
- Department of Blood Transfusion, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Xin Wang
- Department of Rheumatology and Immunology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Enyu Huang
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, Hong Kong SAR, China.,Chongqing International Institute for Immunology, Chongqing, China
| | - Qiao Wang
- School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chengping Wen
- School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Guocan Yang
- Department of Blood Transfusion, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, Hong Kong SAR, China.,Chongqing International Institute for Immunology, Chongqing, China
| | - Dawei Cui
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Abi Nahed R, Elkhoury Mikhael M, Reynaud D, Collet C, Lemaitre N, Michy T, Hoffmann P, Sergent F, Marquette C, Murthi P, Raia-Barjat T, Alfaidy N, Benharouga M. Role of NLRP7 in Normal and Malignant Trophoblast Cells. Biomedicines 2022; 10:biomedicines10020252. [PMID: 35203462 PMCID: PMC8868573 DOI: 10.3390/biomedicines10020252] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/04/2022] [Accepted: 01/19/2022] [Indexed: 02/04/2023] Open
Abstract
Gestational choriocarcinoma (CC) is an aggressive cancer that develops upon the occurrence of abnormal pregnancies such as Hydatidiform moles (HMs) or upon non-molar pregnancies. CC cells often metastasize in multiple organs and can cause maternal death. Recent studies have established an association between recurrent HMs and mutations in the Nlrp7 gene. NLRP7 is a member of a new family of proteins that contributes to innate immune processes. Depending on its level of expression, NLRP7 can function in an inflammasome-dependent or independent pathway. To date, the role of NLRP7 in normal and in malignant human placentation remains to be elucidated. We have recently demonstrated that NLRP7 is overexpressed in CC trophoblast cells and may contribute to their acquisition of immune tolerance via the regulation of key immune tolerance-associated factors, namely HLA family, βCG and PD-L1. We have also demonstrated that NLRP7 increases trophoblast proliferation and decreases their differentiation, both in normal and tumor conditions. Actual findings suggest that NLRP7 expression may ensure a strong tolerance of the trophoblast by the maternal immune system during normal pregnancy and may directly affect the behavior and aggressiveness of malignant trophoblast cells. The proposed review summarizes recent advances in the understanding of the significance of NLRP7 overexpression in CC and discusses its multifaceted roles, including its function in an inflammasome-dependent or independent pathways.
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Affiliation(s)
- Roland Abi Nahed
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Maya Elkhoury Mikhael
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- Commissariat à l’Energie Atomique et aux Energies Alternatives (CEA), Biosciences and Biotechnology Institute of Grenoble, 38054 Grenoble, France
| | - Deborah Reynaud
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Constance Collet
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Nicolas Lemaitre
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Thierry Michy
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- Service Obstétrique & Gynécologie, Centre Hospitalo-Universitaire Grenoble Alpes, University Grenoble-Alpes, CEDEX 9, 38043 Grenoble, France
| | - Pascale Hoffmann
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- Service Obstétrique & Gynécologie, Centre Hospitalo-Universitaire Grenoble Alpes, University Grenoble-Alpes, CEDEX 9, 38043 Grenoble, France
| | - Frederic Sergent
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Christel Marquette
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
| | - Padma Murthi
- Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC 3168, Australia;
- Department of Obstetrics and Gynecology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Tiphaine Raia-Barjat
- Department of Gynecology and Obstetrics, University Hospital, 42100 Saint Etienne, France;
| | - Nadia Alfaidy
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
- Correspondence: (N.A.); (M.B.); Tel.: +33-6-3207-3234 (N.A.); Fax: +33-6-8911-7443 (M.B.)
| | - Mohamed Benharouga
- Institut National de la Santé et de la Recherche Médicale U1292, Biologie et Biotechnologie pour la Santé, 38054 Grenoble, France; (R.A.N.); (M.E.M.); (D.R.); (C.C.); (N.L.); (T.M.); (P.H.); (F.S.); (C.M.)
- 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
- Correspondence: (N.A.); (M.B.); Tel.: +33-6-3207-3234 (N.A.); Fax: +33-6-8911-7443 (M.B.)
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8
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NLRP7 Promotes Choriocarcinoma Growth and Progression through the Establishment of an Immunosuppressive Microenvironment. Cancers (Basel) 2021; 13:cancers13122999. [PMID: 34203890 PMCID: PMC8232770 DOI: 10.3390/cancers13122999] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/08/2021] [Accepted: 06/12/2021] [Indexed: 12/14/2022] Open
Abstract
The inflammatory gene NLRP7 is the major gene responsible for recurrent complete hydatidiform moles (CHM), an abnormal pregnancy that can develop into gestational choriocarcinoma (CC). However, the role of NLRP7 in the development and immune tolerance of CC has not been investigated. Three approaches were employed to define the role of NLRP7 in CC development: (i) a clinical study that analyzed human placenta and sera collected from women with normal pregnancies, CHM or CC; (ii) an in vitro study that investigated the impact of NLRP7 knockdown on tumor growth and organization; and (iii) an in vivo study that used two CC mouse models, including an orthotopic model. NLRP7 and circulating inflammatory cytokines were upregulated in tumor cells and in CHM and CC. In tumor cells, NLRP7 functions in an inflammasome-independent manner and promoted their proliferation and 3D organization. Gravid mice placentas injected with CC cells invalidated for NLRP7, exhibited higher maternal immune response, developed smaller tumors, and displayed less metastases. Our data characterized the critical role of NLRP7 in CC and provided evidence of its contribution to the development of an immunosuppressive maternal microenvironment that not only downregulates the maternal immune response but also fosters the growth and progression of CC.
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9
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Role of Microgliosis and NLRP3 Inflammasome in Parkinson's Disease Pathogenesis and Therapy. Cell Mol Neurobiol 2021; 42:1283-1300. [PMID: 33387119 DOI: 10.1007/s10571-020-01027-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder marked primarily by motor symptoms such as rigidity, bradykinesia, postural instability and resting tremor associated with dopaminergic neuronal loss in the Substantia Nigra pars compacta (SNpc) and deficit of dopamine in the basal ganglia. These motor symptoms can be preceded by pre-motor symptoms whose recognition can be useful to apply different strategies to evaluate risk, early diagnosis and prevention of PD progression. Although clinical characteristics of PD are well defined, its pathogenesis is still not completely known, what makes discoveries of therapies capable of curing patients difficult to be reached. Several theories about the cause of idiopathic PD have been investigated and among them, the key role of inflammation, microglia and the inflammasome in the pathogenesis of PD has been considered. In this review, we describe the role and relation of both the inflammasome and microglial activation with the pathogenesis, symptoms, progression and the possibilities for new therapeutic strategies in PD.
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10
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Induction of Allograft Tolerance While Maintaining Immunity Against Microbial Pathogens: Does Coronin 1 Hold a Key? Transplantation 2020; 104:1350-1357. [PMID: 31895336 DOI: 10.1097/tp.0000000000003101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Selective suppression of graft rejection while maintaining anti-pathogen responses has been elusive. Thus far, the most successful strategies to induce suppression of graft rejection relies on inhibition of T-cell activation. However, the very same mechanisms that induce allograft-specific T-cell suppression are also important for immunity against microbial pathogens as well as oncogenically transformed cells, resulting in significant immunosuppression-associated comorbidities. Therefore, defining the pathways that differentially regulate anti-graft versus antimicrobial T-cell responses may allow the development of regimen to induce allograft-specific tolerance. Recent work has defined a molecular pathway driven by the immunoregulatory protein coronin 1 that regulates the phosphodiesterase/cyclic adenosine monophosphate pathway and modulates T cell responses. Interestingly, disruption of coronin 1 promotes allograft tolerance while immunity towards a range of pathogenic microbes is maintained. Here, we briefly review the work leading up to these findings as well as their possible implications for transplantation medicine.
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11
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NLRP7 plays a functional role in regulating BMP4 signaling during differentiation of patient-derived trophoblasts. Cell Death Dis 2020; 11:658. [PMID: 32814763 PMCID: PMC7438493 DOI: 10.1038/s41419-020-02884-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 01/03/2023]
Abstract
Complete hydatidiform mole (HM) is a gestational trophoblastic disease resulting in hyperproliferation of trophoblast cells and absence of embryo development. Mutations in the maternal-effect gene NLRP7 are the major cause of familial recurrent complete HM. Here, we established an in vitro model of HM using patient-specific induced pluripotent stem cells (iPSCs) derived trophoblasts harboring NLRP7 mutations. Using whole transcriptome profiling during trophoblast differentiation, we showed that impaired NLRP7 expression results in precocious downregulation of pluripotency factors, activation of trophoblast lineage markers, and promotes maturation of differentiated extraembryonic cell types such as syncytiotrophoblasts. Interestingly, we found that these phenotypes are dependent on BMP4 signaling and BMP pathway inhibition corrected the excessive trophoblast differentiation of patient-derived iPSCs. Our human iPSC model of a genetic placental disease recapitulates aspects of trophoblast biology, highlights the broad utility of iPSC-derived trophoblasts for modeling human placental diseases and identifies NLRP7 as an essential modulator of key developmental cell fate regulators.
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12
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Li G, Tian X, Lv D, Zhang L, Zhang Z, Wang J, Yang M, Tao J, Ma T, Wu H, Ji P, Wu Y, Lian Z, Cui W, Liu G. NLRP7 is expressed in the ovine ovary and associated with in vitro pre-implantation embryo development. Reproduction 2020; 158:415-427. [PMID: 31505467 PMCID: PMC6826174 DOI: 10.1530/rep-19-0081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022]
Abstract
NLRP (NACHT, LRR and PYD domain-containing proteins) family plays pivotal roles in mammalian reproduction. Mutation of NLRP7 is often associated with human recurrent hydatidiform moles. Few studies regarding the functions of NLRP7 have been performed in other mammalian species rather than humans. In the current study, for the first time, the function of NLRP7 has been explored in ovine ovary. NLRP7 protein was mainly located in ovarian follicles and in in vitro pre-implantation embryos. To identify its origin, 763 bp partial CDS of NLRP7 deriving from sheep cumulus oocyte complexes (COCs) was cloned, it showed a great homology with Homo sapiens. The high levels of mRNA and protein of NLRP7 were steadily expressed in oocytes, parthenogenetic embryos or IVF embryos. NLRP7 knockdown by the combination of siRNA and shRNA jeopardized both the parthenogenetic and IVF embryo development. These results strongly suggest that NLRP7 plays an important role in ovine reproduction. The potential mechanisms of NLRP7 will be fully investigated in the future.
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Affiliation(s)
- Guangdong Li
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiuzhi Tian
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dongying Lv
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lu Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenzhen Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jing Wang
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Minghui Yang
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jingli Tao
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Teng Ma
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hao Wu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Pengyun Ji
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yingjie Wu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhengxing Lian
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Cui
- Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Imperial College London, London, UK.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, China
| | - Guoshi Liu
- Beijing Key Laboratory for Animal Genetic Improvement, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
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13
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Zheng D, Liwinski T, Elinav E. Inflammasome activation and regulation: toward a better understanding of complex mechanisms. Cell Discov 2020; 6:36. [PMID: 32550001 PMCID: PMC7280307 DOI: 10.1038/s41421-020-0167-x] [Citation(s) in RCA: 448] [Impact Index Per Article: 112.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/05/2020] [Indexed: 02/07/2023] Open
Abstract
Inflammasomes are cytoplasmic multiprotein complexes comprising a sensor protein, inflammatory caspases, and in some but not all cases an adapter protein connecting the two. They can be activated by a repertoire of endogenous and exogenous stimuli, leading to enzymatic activation of canonical caspase-1, noncanonical caspase-11 (or the equivalent caspase-4 and caspase-5 in humans) or caspase-8, resulting in secretion of IL-1β and IL-18, as well as apoptotic and pyroptotic cell death. Appropriate inflammasome activation is vital for the host to cope with foreign pathogens or tissue damage, while aberrant inflammasome activation can cause uncontrolled tissue responses that may contribute to various diseases, including autoinflammatory disorders, cardiometabolic diseases, cancer and neurodegenerative diseases. Therefore, it is imperative to maintain a fine balance between inflammasome activation and inhibition, which requires a fine-tuned regulation of inflammasome assembly and effector function. Recently, a growing body of studies have been focusing on delineating the structural and molecular mechanisms underlying the regulation of inflammasome signaling. In the present review, we summarize the most recent advances and remaining challenges in understanding the ordered inflammasome assembly and activation upon sensing of diverse stimuli, as well as the tight regulations of these processes. Furthermore, we review recent progress and challenges in translating inflammasome research into therapeutic tools, aimed at modifying inflammasome-regulated human diseases.
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Affiliation(s)
- Danping Zheng
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Timur Liwinski
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- 1st Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eran Elinav
- Immunology Department, Weizmann Institute of Science, Rehovot, 7610001 Israel
- Cancer-Microbiome Division Deutsches Krebsforschungszentrum (DKFZ), Neuenheimer Feld 280, 69120 Heidelberg, Germany
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14
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Papasavvas E, Kossenkov AV, Azzoni L, Zetola NM, Mackiewicz A, Ross BN, Fair M, Vadrevu S, Ramogola-Masire D, Sanne I, Firnhaber C, Montaner LJ. Gene expression profiling informs HPV cervical histopathology but not recurrence/relapse after LEEP in ART-suppressed HIV+HPV+ women. Carcinogenesis 2019; 40:225-233. [PMID: 30364933 DOI: 10.1093/carcin/bgy149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/28/2018] [Accepted: 10/24/2018] [Indexed: 12/30/2022] Open
Abstract
Identification of factors associated with human papillomavirus (HPV) cervical histopathology or recurrence/relapse following loop electrosurgical excision procedure (LEEP) would allow for better management of the disease. We investigated whether gene signatures could (i) associate with HPV cervical histopathology and (ii) identify women with post-LEEP disease recurrence/relapse. Gene array analysis was performed on paraffin-embedded cervical tissue-isolated RNA from two cross-sectional cohorts of antiretroviral therapy (ART)-suppressed HIV+HPV+ coinfected women: (i) 55 women in South Africa recruited into three groups: high risk (HR) (-) (n = 16) and HR (+) (n = 15) HPV without cervical histopathology and HR (+) HPV with cervical intraepithelial neoplasia (CIN) grade 1/2/3 (n = 24), (ii) 28 women in Botswana with CIN2/3 treated with LEEP 12-month prior to recruitment and presenting with (n = 13) and without (n = 15) lesion recurrence/relapse (tissue was analyzed at first LEEP). Three distinct gene expression signatures identified were able to segregate: (i) HR+ HPV and CIN1/2/3, (ii) HR HPV-free and cervical histopathology-free and (iii) HR+ HPV and cervical histopathology-free. Immune activation and neoplasia-associated genes (n = 272 genes; e.g. IL-1A, IL-8, TCAM1, POU4F1, MCM2, SMC1B, CXCL6, MMP12) were a feature of cancer precursor dysplasia within HR HPV infection. No difference in LEEP tissue gene expression was detected between women with or without recurrence/relapse. In conclusion, distinctive gene signatures were associated with presence of cervical histopathology in tissues from ART-suppressed HIV+/HPV+ coinfected women. Lack of detection of LEEP tissue gene signature able to segregate subsequent post-LEEP disease recurrence/relapse indicates additional factors independent of local gene expression as determinants of recurrence/relapse.
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Affiliation(s)
- Emmanouil Papasavvas
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Andrew V Kossenkov
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Livio Azzoni
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Nicola M Zetola
- The Botswana-UPenn Partnership, Department of Radiation Oncology, Gaborone, Botswana.,The University of Pennsylvania, Department of Radiation Oncology, Philadelphia, PA, USA
| | - Agnieszka Mackiewicz
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Brian N Ross
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Matthew Fair
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | - Surya Vadrevu
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
| | | | - Ian Sanne
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Cynthia Firnhaber
- Clinical HIV Research Unit, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Right To Care, Johannesburg, South Africa
| | - Luis J Montaner
- The Wistar Institute, HIV-1 Immunopathogenesis Laboratory, Philadelphia, PA, USA
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15
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Tsai PY, Chen KR, Li YC, Kuo PL. NLRP7 Is Involved in the Differentiation of the Decidual Macrophages. Int J Mol Sci 2019; 20:ijms20235994. [PMID: 31795138 PMCID: PMC6929161 DOI: 10.3390/ijms20235994] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 01/14/2023] Open
Abstract
Macrophage polarization, regulated appropriately, may play important roles in successful pregnancy. In the face of the vital roles of decidua macrophages in pregnancy, it is insufficient to recognize the trigger of macrophage differentiation and polarization. We aimed to explore the link between the NLRP7 gene and macrophage polarization in human deciduas. Here, we enrolled the endometrial tissues from eight pregnant women in the first trimester. We found that NLRP7 was abundant in endometrial tissues and that NLRP7 was expressed in decidual macrophages of the first-trimester pregnancy. NLRP7 was predominately expressed in the decidual M2 macrophages, as compared with the M1 macrophages. Furthermore, our results suggest that NLRP7 is associated with decidual macrophage differentiation. NLRP7 over-expression suppresses the expression of M1 markers and enhances the expression of the M2 markers. Considering that NLRP7 relates to decidualization and macrophage differentiation, we propose that NLRP7 is a primate-specific multitasking gene to maintain endometrial hemostasis and reproductive success. This finding may pave the way for therapies of pathological pregnancies.
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Affiliation(s)
- Pei-Yin Tsai
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan; (P.-Y.T.); (K.-R.C.)
| | - Kuan-Ru Chen
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan; (P.-Y.T.); (K.-R.C.)
| | - Yueh-Chun Li
- Laboratory of cytogenetic research, Lee Women’s Hospital, Taichung 40652, Taiwan
- Correspondence: (Y.-C.L.); (P.-L.K.); Tel.: +886-4-2234-7057 (Y.-C.L.); +886-6-235-3535-5222 (P.-L.K.)
| | - Pao-Lin Kuo
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70401, Taiwan; (P.-Y.T.); (K.-R.C.)
- Correspondence: (Y.-C.L.); (P.-L.K.); Tel.: +886-4-2234-7057 (Y.-C.L.); +886-6-235-3535-5222 (P.-L.K.)
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16
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NOD-like receptors: major players (and targets) in the interface between innate immunity and cancer. Biosci Rep 2019; 39:BSR20181709. [PMID: 30837326 PMCID: PMC6454022 DOI: 10.1042/bsr20181709] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/18/2022] Open
Abstract
Innate immunity comprises several inflammation-related modulatory pathways which receive signals from an array of membrane-bound and cytoplasmic pattern recognition receptors (PRRs). The NLRs (NACHT (NAIP (neuronal apoptosis inhibitor protein), C2TA (MHC class 2 transcription activator), HET-E (incompatibility locus protein from Podospora anserina) and TP1 (telomerase-associated protein) and Leucine-Rich Repeat (LRR) domain containing proteins) relate to a large family of cytosolic innate receptors, involved in detection of intracellular pathogens and endogenous byproducts of tissue injury. These receptors may recognize pathogen-associated molecular patterns (PAMPs) and/or danger-associated molecular patterns (DAMPs), activating host responses against pathogen infection and cellular stress. NLR-driven downstream signals trigger a number of signaling circuitries, which may either initiate the formation of inflammasomes and/or activate nuclear factor κB (NF-κB), stress kinases, interferon response factors (IRFs), inflammatory caspases and autophagy. Disruption of those signals may lead to a number of pro-inflammatory conditions, eventually promoting the onset of human malignancies. In this review, we describe the structures and functions of the most well-defined NLR proteins and highlight their association and biological impact on a diverse number of cancers.
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17
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Gheldof A, Mackay DJG, Cheong Y, Verpoest W. Genetic diagnosis of subfertility: the impact of meiosis and maternal effects. J Med Genet 2019; 56:271-282. [PMID: 30728173 PMCID: PMC6581078 DOI: 10.1136/jmedgenet-2018-105513] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/24/2018] [Accepted: 12/27/2018] [Indexed: 02/06/2023]
Abstract
During reproductive age, approximately one in seven couples are confronted with fertility problems. While the aetiology is diverse, including infections, metabolic diseases, hormonal imbalances and iatrogenic effects, it is becoming increasingly clear that genetic factors have a significant contribution. Due to the complex nature of infertility that often hints at a multifactorial cause, the search for potentially causal gene mutations in idiopathic infertile couples has remained difficult. Idiopathic infertility patients with a suspicion of an underlying genetic cause can be expected to have mutations in genes that do not readily affect general health but are only essential in certain processes connected to fertility. In this review, we specifically focus on genes involved in meiosis and maternal-effect processes, which are of critical importance for reproduction and initial embryonic development. We give an overview of genes that have already been linked to infertility in human, as well as good candidates which have been described in other organisms. Finally, we propose a phenotypic range in which we expect an optimal diagnostic yield of a meiotic/maternal-effect gene panel.
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Affiliation(s)
- Alexander Gheldof
- Center for Medical Genetics, Universitair Ziekenhuis Brussel, Brussels, Belgium.,Reproduction and Genetics Department, Vrije Universiteit Brussel, Brussels, Belgium
| | - Deborah J G Mackay
- Faculty of Medicine, University of Southampton, Southampton University Hospital, Southampton, UK
| | - Ying Cheong
- Complete Fertility, Human Development of Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Willem Verpoest
- Reproduction and Genetics Department, Vrije Universiteit Brussel, Brussels, Belgium.,Center for Reproductive Medicine, Universitair Ziekenhuis Brussel, Brussels, Belgium
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18
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Begemann M, Rezwan FI, Beygo J, Docherty LE, Kolarova J, Schroeder C, Buiting K, Chokkalingam K, Degenhardt F, Wakeling EL, Kleinle S, González Fassrainer D, Oehl-Jaschkowitz B, Turner CLS, Patalan M, Gizewska M, Binder G, Bich Ngoc CT, Chi Dung V, Mehta SG, Baynam G, Hamilton-Shield JP, Aljareh S, Lokulo-Sodipe O, Horton R, Siebert R, Elbracht M, Temple IK, Eggermann T, Mackay DJG. Maternal variants in NLRP and other maternal effect proteins are associated with multilocus imprinting disturbance in offspring. J Med Genet 2018; 55:497-504. [PMID: 29574422 PMCID: PMC6047157 DOI: 10.1136/jmedgenet-2017-105190] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/16/2018] [Accepted: 02/15/2018] [Indexed: 12/12/2022]
Abstract
Background Genomic imprinting results from the resistance of germline epigenetic marks to reprogramming in the early embryo for a small number of mammalian genes. Genetic, epigenetic or environmental insults that prevent imprints from evading reprogramming may result in imprinting disorders, which impact growth, development, behaviour and metabolism. We aimed to identify genetic defects causing imprinting disorders by whole-exome sequencing in families with one or more members affected by multilocus imprinting disturbance. Methods Whole-exome sequencing was performed in 38 pedigrees where probands had multilocus imprinting disturbance, in five of whom maternal variants in NLRP5 have previously been found. Results We now report 15 further pedigrees in which offspring had disturbance of imprinting, while their mothers had rare, predicted-deleterious variants in maternal effect genes, including NLRP2, NLRP7 and PADI6. As well as clinical features of well-recognised imprinting disorders, some offspring had additional features including developmental delay, behavioural problems and discordant monozygotic twinning, while some mothers had reproductive problems including pregnancy loss. Conclusion The identification of 20 putative maternal effect variants in 38 families affected by multilocus imprinting disorders adds to the evidence that maternal genetic factors affect oocyte fitness and thus offspring development. Testing for maternal-effect genetic variants should be considered in families affected by atypical imprinting disorders.
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Affiliation(s)
- Matthias Begemann
- Institute of Human Genetics, RWTH Aachen University, Aachen, Germany
| | - Faisal I Rezwan
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Jasmin Beygo
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Louise E Docherty
- MRC Human Genetics Unit, The Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Julia Kolarova
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Christopher Schroeder
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Karin Buiting
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Kamal Chokkalingam
- Department of Diabetic Medicine, Nottingham University Hospital NHS Trust, Nottingham, UK
| | | | - Emma L Wakeling
- North West Thames Regional Genetics Service, London North West Healthcare NHS Trust, London, UK
| | | | | | | | - Claire L S Turner
- Peninsula Genetics Service, Royal Devon and Exeter Hospital, Exeter, UK
| | - Michal Patalan
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology, Pomeranian Medical University, Szczecin, Poland
| | - Maria Gizewska
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology, Pomeranian Medical University, Szczecin, Poland
| | - Gerhard Binder
- Pediatric Endocrinology, University Children's Hospital, Tübingen, Germany
| | - Can Thi Bich Ngoc
- Department of Medical Genetics, Metabolism and Endocrinology, The National Children's Hospital, Hanoi, Vietnam
| | - Vu Chi Dung
- Department of Medical Genetics, Metabolism and Endocrinology, The National Children's Hospital, Hanoi, Vietnam
| | - Sarju G Mehta
- Department of Clinical Genetics, Cambridge University Hospitals Trust, Cambridge, UK
| | - Gareth Baynam
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia.,Genetic Services of Western Australian and Western Australian Register of Developmental Anomalies, Perth, Western Australia, Australia
| | | | - Sara Aljareh
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Oluwakemi Lokulo-Sodipe
- Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Clinical Genetics Service, University Hospital, Southampton, UK
| | - Rachel Horton
- Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Clinical Genetics Service, University Hospital, Southampton, UK
| | - Reiner Siebert
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Miriam Elbracht
- Institute of Human Genetics, RWTH Aachen University, Aachen, Germany
| | - Isabel Karen Temple
- Faculty of Medicine, University of Southampton, Southampton, UK.,Wessex Clinical Genetics Service, University Hospital, Southampton, UK
| | - Thomas Eggermann
- Institute of Human Genetics, RWTH Aachen University, Aachen, Germany
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Onoufriadis A, Stone K, Katsiamides A, Amar A, Omar Y, de Lange KM, Taylor K, Barrett JC, Pollok R, Hayee B, Mansfield JC, Sanderson JD, Simpson MA, Mathew CG, Prescott NJ. Exome Sequencing and Genotyping Identify a Rare Variant in NLRP7 Gene Associated With Ulcerative Colitis. J Crohns Colitis 2018; 12:321-326. [PMID: 29211899 PMCID: PMC6290881 DOI: 10.1093/ecco-jcc/jjx157] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 11/30/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS Although genome-wide association studies [GWAS] in inflammatory bowel disease [IBD] have identified a large number of common disease susceptibility alleles for both Crohn's disease [CD] and ulcerative colitis [UC], a substantial fraction of IBD heritability remains unexplained, suggesting that rare coding genetic variants may also have a role in pathogenesis. We used high-throughput sequencing in families with multiple cases of IBD, followed by genotyping of cases and controls, to investigate whether rare protein-altering genetic variants are associated with susceptibility to IBD. METHODS Whole-exome sequencing was carried out in 10 families in whom three or more individuals were affected with IBD. A stepwise filtering approach was applied to exome variants, to identify potential causal variants. Follow-up genotyping was performed in 6025 IBD cases [2948 CD; 3077 UC] and 7238 controls. RESULTS Our exome variant analysis revealed coding variants in the NLRP7 gene that were present in affected individuals in two distinct families. Genotyping of the two variants, p.S361L and p.R801H, in IBD cases and controls showed that the p.S361L variant was significantly associated with an increased risk of ulcerative colitis [odds ratio 4.79, p = 0.0039] and IBD [odds ratio 3.17, p = 0.037]. A combined analysis of both variants showed suggestive association with an increased risk of IBD [odds ratio 2.77, p = 0.018]. CONCLUSIONS The results suggest that NLRP7 signalling and inflammasome formation may be a significant component in the pathogenesis of IBD.
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Affiliation(s)
| | - Kristina Stone
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | - Antreas Katsiamides
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | - Ariella Amar
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | - Yasmin Omar
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | | | - Kirstin Taylor
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | | | - Richard Pollok
- Department Gastroenterology and Hepatology, St George’s University Hospitals NHS Foundation Trust, London, UK
| | - Bu’Hussain Hayee
- IBD Service, King’s College Hospital NHS Foundation Trust, London, UK
| | - John C Mansfield
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Jeremy D Sanderson
- Department of Gastroenterology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Michael A Simpson
- Department of Medical and Molecular Genetics, King’s College London, London, UK
| | - Christopher G Mathew
- Department of Medical and Molecular Genetics, King’s College London, London, UK,Sydney Brenner Institute for Molecular Bioscience, University of Witwatersrand, Johannesburg, South Africa
| | - Natalie J Prescott
- Department of Medical and Molecular Genetics, King’s College London, London, UK,Corresponding author: Natalie J. Prescott, PhD, Department of Medical and Molecular Genetics, Faculty of Life Sciences & Medicine, King’s College London, 7th Floor, Tower Wing, Guy’s Hospital, London, SE1 9RT. E-mail:
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20
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Chen DY, Chen YM, Chen HH, Hsieh CW, Gung NR, Hung WT, Tzang BS, Hsu TC. Human parvovirus B19 nonstructural protein NS1 activates NLRP3 inflammasome signaling in adult‑onset Still's disease. Mol Med Rep 2017; 17:3364-3371. [PMID: 29257322 DOI: 10.3892/mmr.2017.8275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 11/13/2017] [Indexed: 11/06/2022] Open
Abstract
Dysregulation of inflammasomes serves a pathogenic role in autoinflammatory diseases (AIDs) and adult-onset Still's disease (AOSD) has been categorized as an AID. The present study investigated the expression of NLR family pyrin domain containing proteins (NLRPs) inflammasome in patients with AOSD, the effect of inflammasome inhibitors on NLRP3 signaling and whether human parvovirus B19‑associated antigens can activate NLRP3 in patients with AOSD. mRNA expression levels of NLRPs in peripheral blood mononuclear cells (PBMCs) from 34 patients with AOSD and 14 healthy individuals were determined using reverse transcription‑quantitative polymerase chain reaction. Protein expression of NLRP3 was evaluated by western blotting. Supernatant cytokine levels were measured by ELISA. Among the NLRPs investigated in the present study, NLRP3 transcripts were markedly elevated and expression of NLRP2, NLRP7 and NLRP12 was decreased in patients with AOSD compared with the controls. Treatment with NLRP3 inhibitors significantly reduced downstream NLRP3 signaling in PBMCs form patients with AOSD. B19‑nonstructural protein (NS)1 stimulation of PBMCs from patients with AOSD induced significant upregulation of transcript levels of NLRP3, caspase‑1 and interleukin (IL)‑1β compared with PBMCs from healthy controls. B19‑NS1 stimulation of PBMCs from patients with AOSD induced significant increase in supernatant levels of IL‑1β and protein expression of NLRP3, caspase‑1, IL‑1β, and IL‑18 compared with healthy controls. Elevated expression of NLRP3 and its downstream inflammasome signaling components in patients with AOSD indicated a potential pathogenic role of B19‑NS1. Thus, B19‑NS1 may induce expression of IL‑1β and IL‑18 through activation of caspase‑1‑associated NLRP3‑inflammasome in AOSD.
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Affiliation(s)
- Der-Yuan Chen
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Yi-Ming Chen
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Hsin-Hua Chen
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Chia-Wei Hsieh
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Ning-Rong Gung
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Wei-Ting Hung
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Bor-Show Tzang
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C
| | - Tsai-Ching Hsu
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C
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Indramohan M, Stehlik C, Dorfleutner A. COPs and POPs Patrol Inflammasome Activation. J Mol Biol 2017; 430:153-173. [PMID: 29024695 DOI: 10.1016/j.jmb.2017.10.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/28/2017] [Accepted: 10/04/2017] [Indexed: 01/07/2023]
Abstract
Sensing and responding to pathogens and tissue damage is a core mechanism of innate immune host defense, and inflammasomes represent a central cytosolic pattern recognition receptor pathway leading to the generation of the pro-inflammatory cytokines interleukin-1β and interleukin-18 and pyroptotic cell death that causes the subsequent release of danger signals to propagate and perpetuate inflammatory responses. While inflammasome activation is essential for host defense, deregulated inflammasome responses and excessive release of inflammatory cytokines and danger signals are linked to an increasing spectrum of inflammatory diseases. In this review, we will discuss recent developments in elucidating the role of PYRIN domain-only proteins (POPs) and the related CARD-only proteins (COPs) in regulating inflammasome responses and their impact on inflammatory disease.
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Affiliation(s)
- Mohanalaxmi Indramohan
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Christian Stehlik
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Interdepartmental Immunobiology Center and Skin Disease Research Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Andrea Dorfleutner
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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22
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Huang JY, Yu PH, Li YC, Kuo PL. NLRP7 contributes to in vitro decidualization of endometrial stromal cells. Reprod Biol Endocrinol 2017; 15:66. [PMID: 28810880 PMCID: PMC5558772 DOI: 10.1186/s12958-017-0286-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/09/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Nucleotide-binding oligomerization domain (NACHT), leucine rich repeat (LRR) and pyrin domain (PYD) 7 containing protein, NLRP7, is a member of the NLR family which serves as innate immune sensors. Mutations and genetic variants of NLRP7 have been found in women with infertility associated conditions, such as recurrent hydatidiform mole, recurrent miscarriage, and preeclampsia. Decidualization of endometrial stromal cells is a hallmark of tissue remodeling to support embryo implantation and proper placental development. Given defective decidualization has been implicated in miscarriage as well as preeclampsia, we aimed to explore the link between the NLRP7 gene and decidualization. METHODS Endometrial samples obtained from pregnant women in the first trimester and non-pregnant women were used to study NLRP7 expression pattern. The human telomerase reverse transcriptase (hTERT)-immortalized human endometrial stromal cells (T-HESCs) were used to study the effect of NLRP7 on decidualization. Decidualization of T-HESCs was induced with 1 μM medroxyprogesterone acetate (MPA) and 0.5 mM 8-bromoadenosine 3':5'-cyclic monophosphate (8-Br-cAMP). siRNA was used to knock down NLRP7 while lentiviral vectors were used to overexpress NLRP7 in cells. NLRP7 expression was detected by immunofluorescence, qRT-PCR, and Western blotting. Decidualization markers, Insulin-like growth factor-binding protein 1 (IGFBP-1) and prolactin (PRL), were detected by qRT-PCR and ELISA. Nuclear translocation of NLRP7 was detected by the subcellular fractionation and confocal microscopy. The effect of NLRP7 on progesterone receptor (PR) activity was evaluated by a reporter system. RESULTS NLRP7 was up-regulated in the decidual stromal cells of human first-trimester endometrium. After in vitro decidualization, T-HESCs presented with the swollen phenotype and increased expressions of IGFBP-1 and PRL. Knockdown or over-expression of NLRP7 reduced or enhanced the decidualization, respectively, according to the expression level of IGFBP-1. NLRP7 was found to translocate in the nucleus of decidualized T-HESCs and able to promote PR activity. CONCLUSIONS NLRP7 was upregulated and translocated to the nucleus of the endometrial stromal cells in an in vitro decidualization model. Overexpressed NLRP7 promoted the IGFBP-1 expression and PR reporter activation. IGFBP-1 expression decreased with the knockdown of NLRP7. Therefore, we suggest that NLRP7 contributes to in vitro decidualization of endometrial stromal cells.
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Affiliation(s)
- Jyun-Yuan Huang
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan, 704, Taiwan
| | - Pei-Hsiu Yu
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan, 704, Taiwan
| | - Yueh-Chun Li
- Department of Biomedical Sciences, Chung Shan Medical University, No.110, Sec. 1, Jianguo N. Rd., South Dist, Taichung City, 402, Taiwan.
| | - Pao-Lin Kuo
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan, 704, Taiwan.
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Richards RI, Robertson SA, O'Keefe LV, Fornarino D, Scott A, Lardelli M, Baune BT. The Enemy within: Innate Surveillance-Mediated Cell Death, the Common Mechanism of Neurodegenerative Disease. Front Neurosci 2016; 10:193. [PMID: 27242399 PMCID: PMC4862319 DOI: 10.3389/fnins.2016.00193] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 04/18/2016] [Indexed: 12/16/2022] Open
Abstract
Neurodegenerative diseases comprise an array of progressive neurological disorders all characterized by the selective death of neurons in the central nervous system. Although, rare (familial) and common (sporadic) forms can occur for the same disease, it is unclear whether this reflects several distinct pathogenic pathways or the convergence of different causes into a common form of nerve cell death. Remarkably, neurodegenerative diseases are increasingly found to be accompanied by activation of the innate immune surveillance system normally associated with pathogen recognition and response. Innate surveillance is the cell's quality control system for the purpose of detecting such danger signals and responding in an appropriate manner. Innate surveillance is an "intelligent system," in that the manner of response is relevant to the magnitude and duration of the threat. If possible, the threat is dealt with within the cell in which it is detected, by degrading the danger signal(s) and restoring homeostasis. If this is not successful then an inflammatory response is instigated that is aimed at restricting the spread of the threat by elevating degradative pathways, sensitizing neighboring cells, and recruiting specialized cell types to the site. If the danger signal persists, then the ultimate response can include not only the programmed cell death of the original cell, but the contents of this dead cell can also bring about the death of adjacent sensitized cells. These responses are clearly aimed at destroying the ability of the detected pathogen to propagate and spread. Innate surveillance comprises intracellular, extracellular, non-cell autonomous and systemic processes. Recent studies have revealed how multiple steps in these processes involve proteins that, through their mutation, have been linked to many familial forms of neurodegenerative disease. This suggests that individuals harboring these mutations may have an amplified response to innate-mediated damage in neural tissues, and renders innate surveillance mediated cell death a plausible common pathogenic pathway responsible for neurodegenerative diseases, in both familial and sporadic forms. Here we have assembled evidence in favor of the hypothesis that neurodegenerative disease is the cumulative result of chronic activation of the innate surveillance pathway, triggered by endogenous or environmental danger or damage associated molecular patterns in a progressively expanding cascade of inflammation, tissue damage and cell death.
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Affiliation(s)
- Robert I Richards
- Department of Genetics and Evolution, Centre for Molecular Pathology, School of Biological Sciences, The University of Adelaide Adelaide, SA, Australia
| | - Sarah A Robertson
- School of Paediatrics and Reproductive Health, Robinson Research Institute, The University of Adelaide Adelaide, SA, Australia
| | - Louise V O'Keefe
- Department of Genetics and Evolution, Centre for Molecular Pathology, School of Biological Sciences, The University of Adelaide Adelaide, SA, Australia
| | - Dani Fornarino
- Department of Genetics and Evolution, Centre for Molecular Pathology, School of Biological Sciences, The University of Adelaide Adelaide, SA, Australia
| | - Andrew Scott
- Department of Genetics and Evolution, Centre for Molecular Pathology, School of Biological Sciences, The University of Adelaide Adelaide, SA, Australia
| | - Michael Lardelli
- Department of Genetics and Evolution, Centre for Molecular Pathology, School of Biological Sciences, The University of Adelaide Adelaide, SA, Australia
| | - Bernhard T Baune
- School of Medicine, Discipline of Psychiatry, The University of Adelaide Adelaide, SA, Australia
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24
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Radian AD, Khare S, Chu LH, Dorfleutner A, Stehlik C. ATP binding by NLRP7 is required for inflammasome activation in response to bacterial lipopeptides. Mol Immunol 2015; 67:294-302. [PMID: 26143398 DOI: 10.1016/j.molimm.2015.06.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/11/2015] [Accepted: 06/15/2015] [Indexed: 02/07/2023]
Abstract
Nucleotide-binding oligimerization domain (NOD)-like receptors (NLRs) are pattern recognition receptors (PRRs) involved in innate immune responses. NLRs encode a central nucleotide-binding domain (NBD) consisting of the NAIP, CIITA, HET-E and TP1 (NACHT) domain and the NACHT associated domain (NAD), which facilitates receptor oligomerization and downstream inflammasome signaling. The NBD contains highly conserved regions, known as Walker motifs, that are required for nucleotide binding and hydrolysis. The NLR containing a PYRIN domain (PYD) 7 (NLRP7) has been recently shown to assemble an ASC and caspase-1-containing high molecular weight inflammasome complex in response to microbial acylated lipopeptides and Staphylococcus aureus infection. However, the molecular mechanism responsible for NLRP7 inflammasome activation is still elusive. Here we demonstrate that the NBD of NLRP7 is an ATP binding domain and has ATPase activity. We further show that an intact nucleotide-binding Walker A motif is required for NBD-mediated nucleotide binding and hydrolysis, oligomerization, and NLRP7 inflammasome formation and activity. Accordingly, THP-1 cells expressing a mutated Walker A motif display defective NLRP7 inflammasome activation, interleukin (IL)-1β release and pyroptosis in response to acylated lipopeptides and S. aureus infection. Taken together, our results provide novel insights into the mechanism of NLRP7 inflammasome assembly.
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Affiliation(s)
- Alexander D Radian
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Driskill Graduate Program in Life Sciences (DGP), Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Sonal Khare
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lan H Chu
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Driskill Graduate Program in Life Sciences (DGP), Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Andrea Dorfleutner
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Christian Stehlik
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Interdepartmental Immunobiology Center and Skin Disease Research Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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25
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Collaborative action of Toll-like and NOD-like receptors as modulators of the inflammatory response to pathogenic bacteria. Mediators Inflamm 2014; 2014:432785. [PMID: 25525300 PMCID: PMC4267164 DOI: 10.1155/2014/432785] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 06/11/2014] [Accepted: 06/27/2014] [Indexed: 01/20/2023] Open
Abstract
Early sensing of pathogenic bacteria by the host immune system is important to develop effective mechanisms to kill the invader. Microbial recognition, activation of signaling pathways, and effector mechanisms are sequential events that must be highly controlled to successfully eliminate the pathogen. Host recognizes pathogens through pattern-recognition receptors (PRRs) that sense pathogen-associated molecular patterns (PAMPs). Some of these PRRs include Toll-like receptors (TLRs), nucleotide-binding oligomerization domain-like receptors (NLRs), retinoic acid-inducible gene-I- (RIG-I-) like receptors (RLRs), and C-type lectin receptors (CLRs). TLRs and NLRs are PRRs that play a key role in recognition of extracellular and intracellular bacteria and control the inflammatory response. The activation of TLRs and NLRs by their respective ligands activates downstream signaling pathways that converge on activation of transcription factors, such as nuclear factor-kappaB (NF-κB), activator protein-1 (AP-1) or interferon regulatory factors (IRFs), leading to expression of inflammatory cytokines and antimicrobial molecules. The goal of this review is to discuss how the TLRs and NRLs signaling pathways collaborate in a cooperative or synergistic manner to counteract the infectious agents. A deep knowledge of the biochemical events initiated by each of these receptors will undoubtedly have a high impact in the design of more effective strategies to control inflammation.
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26
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Khan RN, Hay DP. A clear and present danger: inflammasomes DAMPing down disorders of pregnancy. Hum Reprod Update 2014; 21:388-405. [PMID: 25403436 DOI: 10.1093/humupd/dmu059] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 10/27/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND When the normal progression of pregnancy is threatened, inflammatory processes are often amplified in order to minimize detrimental effects and eliminate noxious agents. Inflammasomes are unique, intracellular, multiprotein assemblies that enable caspase-1 mediated proteolytic processing of the proinflammatory cytokine interleukin-1β, levels of which are elevated in some forms of preterm birth and maternal metabolic disorders. METHODS A comprehensive review based on a search of PubMed and Medline for terms and combinations of terms incorporating 'inflammation', 'inflammasome', 'pregnancy', 'preterm birth', 'pre-eclampsia', 'interleukin-1', 'caspase-1' and others selected to capture key articles. RESULTS In the decade since the discovery of the inflammasome, between January 2002 and June 2014 over 2200 articles have been published. Articles in the reproductive field are scarce but there is clear evidence for a role of the inflammasome axis in pregnancy, preterm birth and the maternal metabolic syndrome. CONCLUSION Further investigations on the inflammasome in pregnancy are needed in order to elucidate the biology of this unique structure in reproduction. Coordination of maternal, fetal and placental aspects of inflammasome function will potentially yield new information on the detection and transduction of host and non-host signals in the inflammatory response.
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Affiliation(s)
- Raheela N Khan
- Division of Medical Sciences & Graduate Entry Medicine, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Uttoxeter Road, Derby DE22 3DT, UK
| | - Daniel P Hay
- Division of Medical Sciences & Graduate Entry Medicine, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Uttoxeter Road, Derby DE22 3DT, UK
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Aghajanova L, Mahadevan S, Altmäe S, Stavreus-Evers A, Regan L, Sebire N, Dixon P, Fisher RA, Van den Veyver IB. No evidence for mutations in NLRP7, NLRP2 or KHDC3L in women with unexplained recurrent pregnancy loss or infertility. Hum Reprod 2014; 30:232-8. [PMID: 25376457 DOI: 10.1093/humrep/deu296] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Are mutations in NLRP2/7 (NACHT, LRR and PYD domains-containing protein 2/7) or KHDC3L (KH Domain Containing 3 Like) associated with recurrent pregnancy loss (RPL) or infertility? SUMMARY ANSWER We found no evidence for mutations in NLRP2/7 or KHDC3L in unexplained RPL or infertility. WHAT IS KNOWN ALREADY Mutations in NLRP7 and KHDC3L are known to cause biparental hydatidiform moles (BiHMs), a rare form of pregnancy loss. NLRP2, while not associated with the BiHM pathology, is known to cause recurrent Beckwith Weidemann Syndrome (BWS). STUDY DESIGN, SIZE, AND DURATION Ninety-four patients with well characterized, unexplained infertility were recruited over a 9-year period from three IVF clinics in Sweden. Blood samples from 24 patients with 3 or more consecutive miscarriages of unknown etiology were provided by the Recurrent Miscarriage Clinic at St Mary's Hospital, London, UK. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients were recruited into both cohorts following extensive clinical studies. Genomic DNA was isolated from peripheral blood and subject to Sanger sequencing of NLRP2, NLRP7 and KHDC3L. Sequence electropherograms were analyzed by Sequencher v5.0 software and variants compared with those observed in the 1000 Genomes, single nucleotide polymorphism database (dbSNP) and HapMap databases. Functional effects of non-synonymous variants were predicted using Polyphen-2 and sorting intolerant from tolerant (SIFT). MAIN RESULTS AND THE ROLE OF CHANCE No disease-causing mutations were identified in NLRP2, NLRP7 and KHDC3L in our cohorts of unexplained infertility and RPL. LIMITATIONS, REASONS FOR CAUTION Due to the limited patient size, it is difficult to conclude if the low frequency single nucleotide polymorphisms observed in the present study are causative of the phenotype. The design of the present study therefore is only capable of detecting highly penetrant mutations. WIDER IMPLICATIONS OF THE FINDINGS The present study supports the hypothesis that mutations in NLRP7 and KHDC3L are specific for the BiHM phenotype and do not play a role in other adverse reproductive outcomes. Furthermore, to date, mutations in NLRP2 have only been associated with the imprinting disorder BWS in offspring and there is no evidence for a role in molar pregnancies, RPL or unexplained infertility. STUDY FUNDING/COMPETING INTERESTS This study was funded by the following sources: Estonian Ministry of Education and Research (Grant SF0180044s09), Enterprise Estonia (Grant EU30020); Mentored Resident research project (Department of Obstetrics and Gynecology, Baylor College of Medicine); Imperial NIHR Biomedical Research Centre; Grant Number C06RR029965 from the National Center for Research Resources (NCCR; NIH). No competing interests declared.
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Affiliation(s)
- L Aghajanova
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - S Mahadevan
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA Department of Obstetrics and Gynecology, One Baylor Plaza, Mailstop BCM610, Baylor College of Medicine, Houston, TX 77030, USA Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA
| | - S Altmäe
- Competence Centre on Reproductive Medicine and Biology, Tartu 50410, Estonia
| | - A Stavreus-Evers
- Department of Women's and Children's Health, Uppsala University, Uppsala 75105, Sweden
| | - L Regan
- Department of Obstetrics and Gynaecology, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - N Sebire
- Paediatric and Developmental Pathology, Institute of Child Health/Great Ormond Street Hospital, London WC1N 1EH, UK
| | - P Dixon
- Division of Women's Health, King's College London, Guy's Campus, London SE1 1UL, UK
| | - R A Fisher
- Trophoblastic Tumour Screening and Treatment Centre, Charing Cross Campus, Imperial College London, London W6 8RF, UK
| | - I B Van den Veyver
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA Department of Obstetrics and Gynecology, One Baylor Plaza, Mailstop BCM610, Baylor College of Medicine, Houston, TX 77030, USA Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
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Abstract
NLRs are a class of cytoplasmic PRRs with various functions, ranging from pathogen/damage sensing to the modulation of inflammatory signaling and transcriptional control of MHC and related genes. In addition, some NLRs have been implicated in preimplantation and prenatal development. NLRP12 (also known as RNO, PYPAF7, and Monarch-1), a member of the family containing an N-terminal PYD, a NBD, and a C-terminal LRR region, is one of the first described NLR proteins whose role remains controversial. The interest toward NLRP12 has been boosted by its recent involvement in colon cancer, as well as in the protection against some severe infections, such as that induced by Yersinia pestis, the causative agent of plague. As NLRP12 is mainly expressed by the immune cells, and its expression is down-regulated in response to pathogen products and inflammatory cytokines, it has been predicted to play a role as a negative regulator of the inflammatory response. Herein, we present an overview of the NLR family and summarize recent insights on NLRP12 addressing its contribution to inflammatory signaling, host defense, and carcinogenesis.
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Affiliation(s)
- Sinem Tuncer
- Department of Biology and Biotechnology, "Charles Darwin", Sapienza, University of Rome, Italy
| | - Maria Teresa Fiorillo
- Department of Biology and Biotechnology, "Charles Darwin", Sapienza, University of Rome, Italy
| | - Rosa Sorrentino
- Department of Biology and Biotechnology, "Charles Darwin", Sapienza, University of Rome, Italy
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Ratsimandresy RA, Dorfleutner A, Stehlik C. An Update on PYRIN Domain-Containing Pattern Recognition Receptors: From Immunity to Pathology. Front Immunol 2013; 4:440. [PMID: 24367371 PMCID: PMC3856626 DOI: 10.3389/fimmu.2013.00440] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 11/25/2013] [Indexed: 12/11/2022] Open
Abstract
Cytosolic pattern recognition receptors (PRRs) sense a wide range of endogenous danger-associated molecular patterns as well as exogenous pathogen-associated molecular patterns. In particular, Nod-like receptors containing a pyrin domain (PYD), called NLRPs, and AIM2-like receptors (ALRs) have been shown to play a critical role in host defense by facilitating clearance of pathogens and maintaining a healthy gut microflora. NLRPs and ALRs both encode a PYD, which is crucial for relaying signals that result in an efficient innate immune response through activation of several key innate immune signaling pathways. However, mutations in these PRRs have been linked to the development of auto-inflammatory and autoimmune diseases. In addition, they have been implicated in metabolic diseases. In this review, we summarize the function of PYD-containing NLRPs and ALRs and address their contribution to innate immunity, host defense, and immune-linked diseases.
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Affiliation(s)
- Rojo A Ratsimandresy
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA
| | - Andrea Dorfleutner
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA
| | - Christian Stehlik
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA ; Robert H. Lurie Comprehensive Cancer Center, Interdepartmental Immunobiology Center and Skin Disease Research Center, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA
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Chaput C, Sander LE, Suttorp N, Opitz B. NOD-Like Receptors in Lung Diseases. Front Immunol 2013; 4:393. [PMID: 24312100 PMCID: PMC3836004 DOI: 10.3389/fimmu.2013.00393] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 11/07/2013] [Indexed: 12/15/2022] Open
Abstract
The lung is a particularly vulnerable organ at the interface of the body and the exterior environment. It is constantly exposed to microbes and particles by inhalation. The innate immune system needs to react promptly and adequately to potential dangers posed by these microbes and particles, while at the same time avoiding extensive tissue damage. Nucleotide-binding oligomerization domain-like receptors (NLRs) represent a group of key sensors for microbes and damage in the lung. As such they are important players in various infectious as well as acute and chronic sterile inflammatory diseases, such as pneumonia, chronic obstructive pulmonary disease (COPD), acute lung injury/acute respiratory distress syndrome, pneumoconiosis, and asthma. Activation of most known NLRs leads to the production and release of pro-inflammatory cytokines, and/or to the induction of cell death. We will review NLR functions in the lung during infection and sterile inflammation.
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Affiliation(s)
- Catherine Chaput
- Department of Internal Medicine/Infectious Diseases and Pulmonary Medicine, Charité - Universitätsmedizin Berlin , Berlin , Germany
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