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Bagyinszky E, An SSA. Genetic Mutations Associated With TNFAIP3 (A20) Haploinsufficiency and Their Impact on Inflammatory Diseases. Int J Mol Sci 2024; 25:8275. [PMID: 39125844 PMCID: PMC11311569 DOI: 10.3390/ijms25158275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
TNF-α-induced protein 3 (TNFAIP3), commonly referred to as A20, is an integral part of the ubiquitin-editing complex that significantly influences immune regulation, apoptosis, and the initiation of diverse immune responses. The A20 protein is characterized by an N-terminal ovarian tumor (OTU) domain and a series of seven zinc finger (ZNF) domains. Mutations in the TNFAIP3 gene are implicated in various immune-related diseases, such as Behçet's disease, polyarticular juvenile idiopathic arthritis, autoimmune thyroiditis, autoimmune hepatitis, and rheumatoid arthritis. These mutations can lead to a spectrum of symptoms, including, but not limited to, recurrent fever, ulcers, rashes, musculoskeletal and gastrointestinal dysfunctions, cardiovascular issues, and respiratory infections. The majority of these mutations are either nonsense (STOP codon) or frameshift mutations, which are typically associated with immune dysfunctions. Nonetheless, missense mutations have also been identified as contributors to these conditions. These genetic alterations may interfere with several biological pathways, notably abnormal NF-κB signaling and dysregulated ubiquitination. Currently, there is no definitive treatment for A20 haploinsufficiency; however, therapeutic strategies can alleviate the symptoms in patients. This review delves into the mutations reported in the TNFAIP3 gene, the clinical progression in affected individuals, potential disease mechanisms, and a brief overview of the available pharmacological interventions for A20 haploinsufficiency. Mandatory genetic testing of the TNFAIP3 gene should be performed in patients diagnosed with autoinflammatory disorders to better understand the genetic underpinnings and guide treatment decisions.
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Affiliation(s)
- Eva Bagyinszky
- Graduate School of Environment Department of Industrial and Environmental Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon Medical Research Institute, Gachon University, Seongnam 13120, Republic of Korea
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Elhani I, Riller Q, Boursier G, Hentgen V, Rieux-Laucat F, Georgin-Lavialle S. A20 Haploinsufficiency: A Systematic Review of 177 Cases. J Invest Dermatol 2024; 144:1282-1294.e8. [PMID: 38128752 DOI: 10.1016/j.jid.2023.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
A20 haploinsufficiency is an autoinflammatory disease caused by defective inactivation of the NF-κB pathway. We conducted a systematic literature review of articles reporting patients with TNFAIP3 sequence variants from 2016 to August 2023 following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Data from 177 patients from 65 articles were retrieved (108 women). The principal features were mucosal ulcers (n = 129); fever (n = 93) followed by gastrointestinal (n = 81); skin features (n = 76); autoimmunity (n = 61), including thyroiditis (n = 25) and lupus (n = 16); and joint involvements (n = 54). Five patients had died at the time of publication. In 54 of 63 patients, CRP was significantly elevated during flares, with a median of 51 mg/l. The most commonly used treatment included corticosteroids and nonsteroidal anti-inflammatory drugs (n = 32), TNF blockers (n = 29), colchicine (n = 28), and methotrexate (n = 14). TNFAIP3 variants impacted the ovarian tumor domain in 92 cases and a Zinc finger domain in 68 cases. Geographic origin, reported sex, and variant type significantly impacted phenotype. A better understanding of the wide A20 haploinsufficiency phenotype could facilitate the diagnosis process. Much remains to be elucidated about pathogenesis and treatment to improve outcome in patients with A20 haploinsufficiency.
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Affiliation(s)
- Inès Elhani
- Department of Internal Medicine, Tenon Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France; Saint-Antoine Research Center (CRSA) INSERM UMRS 938, Sorbonne Université, Paris, France; National French Reference Centre for Auto-inflammatory Diseases and Inflammatory Amyloidosis (CEREMAIA), Montpellier, France; Department of General Pediatrics, Versailles Hospital, Versailles, France.
| | - Quentin Riller
- Laboratory of Immunogenetics of Pediatric Autoimmune Diseases, INSERM UMR 1163, Institut Imagine, Université Paris Cité, Paris, France
| | - Guilaine Boursier
- National French Reference Centre for Auto-inflammatory Diseases and Inflammatory Amyloidosis (CEREMAIA), Montpellier, France; Laboratory of Rare and Autoinflammatory Genetic Diseases, Department of genetics, CHU Montpellier, Univ Montpellier, Montpellier, France
| | - Véronique Hentgen
- National French Reference Centre for Auto-inflammatory Diseases and Inflammatory Amyloidosis (CEREMAIA), Montpellier, France; Department of General Pediatrics, Versailles Hospital, Versailles, France
| | - Frédéric Rieux-Laucat
- Laboratory of Immunogenetics of Pediatric Autoimmune Diseases, INSERM UMR 1163, Institut Imagine, Université Paris Cité, Paris, France
| | - Sophie Georgin-Lavialle
- Department of Internal Medicine, Tenon Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France; Saint-Antoine Research Center (CRSA) INSERM UMRS 938, Sorbonne Université, Paris, France; National French Reference Centre for Auto-inflammatory Diseases and Inflammatory Amyloidosis (CEREMAIA), Montpellier, France.
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Jo KJ, Park SE, Cheon CK, Oh SH, Kim SH. Haploinsufficiency A20 misdiagnosed as PFAPA (periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis) syndrome with Kikuchi disease. Clin Exp Pediatr 2023; 66:82-84. [PMID: 35760412 PMCID: PMC9899553 DOI: 10.3345/cep.2022.00500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/06/2022] [Indexed: 02/04/2023] Open
Affiliation(s)
- Kyo Jin Jo
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
| | - Su Eun Park
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
| | - Chong Kun Cheon
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
| | - Seung Hwan Oh
- Department of Laboratory Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Seong Heon Kim
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
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Kadowaki T, Kadowaki S, Ohnishi H. A20 Haploinsufficiency in East Asia. Front Immunol 2021; 12:780689. [PMID: 34899744 PMCID: PMC8664410 DOI: 10.3389/fimmu.2021.780689] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022] Open
Abstract
A20, encoded by the TNFAIP3 gene, is a negative regulator of tumor necrosis factor (TNF)-nuclear factor-κB signaling. It was recently demonstrated that A20 haploinsufficiency (HA20), caused by a heterozygous mutation in the TNFAIP3 gene, can present as an early onset autoinflammatory disease resembling Behçet's disease (BD). In addition to autoinflammatory symptoms, HA20 was also reported to be associated with autoimmune diseases and immunodeficiency. Because the phenotypes associated with HA20 are broad, with different severities observed even among individuals in the same family with identical mutations, it has been assumed that the symptoms of HA20 may depend on genetic background and environmental factors. In this review, we summarize the characteristics of patients with HA20 in East Asia and compare these with patients in other regions, mainly the USA and Europe. Patients with HA20 in East Asia developed recurrent fever more frequently than patients in other regions, but were less likely to develop typical BD symptoms such as skin rashes and genital ulcers. In addition, patients with HA20 in East Asia had low rates of complication with autoimmune diseases and low autoantibody detection rates. While anti-TNF-α agents were the primary treatments for severe HA20 in East Asia, anti-interleukin-1 agents and Janus kinase inhibitors were also administered in other regions. Future studies will need to establish methods for analyzing the pathophysiology of HA20 and determining optimal treatment strategies for each patient.
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Affiliation(s)
- Tomonori Kadowaki
- Department of Infection and Immunity, Aichi Children’s Health and Medical Center, Aichi, Japan
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Saori Kadowaki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
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Zhou J, Luo Q, Cheng Y, Wen X, Liu J. An update on genetic basis of generalized pustular psoriasis (Review). Int J Mol Med 2021; 47:118. [PMID: 33955502 PMCID: PMC8083806 DOI: 10.3892/ijmm.2021.4951] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/11/2021] [Indexed: 01/28/2023] Open
Abstract
Generalized pustular psoriasis (GPP) is a rare and severe auto-inflammatory skin disease that is characterized by recurrent, acute onset, and generalized pustular eruptions on erythematous, inflamed skin. GPP is traditionally classified as a variant of psoriasis vulgaris, even though recent clinical, histological and genetic evidence suggests that it is a heterogeneous disease and requires a separate diagnosis. In recent years, variants of IL36RN, CARD14, AP1S3 and MPO genes have been identified as causative or contributing to genetic defects in a proportion of patients affected by GPP. These disease-related genes are involved in common inflammatory pathways, in particular in the IL-1/IL-36-chemokines-neutrophil pathogenic axis. At present, no standard therapeutic guidelines have been established for GPP management, and there is a profound need for novel efficacious treatments of GPP. Among them, biological agents antagonizing the IL-36 pathway are promising therapeutics. The aim of the present review is to provide the most recent updates on the genetics, genotype-phenotype correlation and pathological basis of GPP, as well as on biologic treatments available for GPP and relative clinical courses.
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Affiliation(s)
- Jiahong Zhou
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Qing Luo
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Yang Cheng
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xia Wen
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jinbo Liu
- Department of Laboratory Medicine, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Perazzio SF, Allenspach EJ, Eklund KK, Varjosalo M, Shinohara MM, Torgerson TR, Seppänen MRJ. Behçet disease (BD) and BD-like clinical phenotypes: NF-κB pathway in mucosal ulcerating diseases. Scand J Immunol 2020; 92:e12973. [PMID: 32889730 DOI: 10.1111/sji.12973] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/08/2020] [Accepted: 08/30/2020] [Indexed: 02/06/2023]
Abstract
Behçet's disease (BD) is a heterogeneous multi-organ disorder in search of a unified pathophysiological theory and classification. The disease frequently has overlapping features resembling other disease clusters, such as vasculitides, spondyloarthritides and thrombophilias with similar genetic risk variants, namely HLA-B*51, ERAP1, IL-10, IL-23R. Many of the BD manifestations, such as unprovoked recurrent episodes of inflammation and increased expression of IL-1, IL-6 and TNFα, overlap with those of the hereditary monogenic autoinflammatory syndromes, positioning BD at the crossroads between autoimmune and autoinflammatory syndromes. BD-like disease associates with various inborn errors of immunity, including familial Mediterranean fever, conditions related to dysregulated NF-κB activation (eg TNFAIP3, NFKB1, OTULIN, RELA, IKBKG) and either constitutional trisomy 8 or acquired trisomy 8 in myelodysplastic syndromes. We review here the recent advances in the immunopathology of BD, BD-like diseases and the NF-κB pathway suggesting new elements in the elusive BD etiopathogenesis.
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Affiliation(s)
- Sandro F Perazzio
- Seattle Children's Research Institute, University of Washington and Center for Immunity and Immunotherapies, Seattle, WA, USA.,Division of Rheumatology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Eric J Allenspach
- Seattle Children's Research Institute, University of Washington and Center for Immunity and Immunotherapies, Seattle, WA, USA
| | - Kari K Eklund
- Division of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,ORTON Orthopaedic Hospital of the Orton Foundation, Helsinki, Finland
| | - Markku Varjosalo
- Division of Rheumatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,ORTON Orthopaedic Hospital of the Orton Foundation, Helsinki, Finland.,Molecular Systems Biology Research Group and Proteomics Unit, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Michi M Shinohara
- Divisions of Dermatology and Dermatopathology, University of Washington, Seattle, WA, USA
| | | | - Mikko R J Seppänen
- Rare Disease and Pediatric Research Centers, Hospital for Children and Adolescents and Adult Immunodeficiency Unit, Inflammation Center, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland
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Yu H, Lin L, Zhang Z, Zhang H, Hu H. Targeting NF-κB pathway for the therapy of diseases: mechanism and clinical study. Signal Transduct Target Ther 2020; 5:209. [PMID: 32958760 PMCID: PMC7506548 DOI: 10.1038/s41392-020-00312-6] [Citation(s) in RCA: 780] [Impact Index Per Article: 195.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/25/2020] [Accepted: 08/31/2020] [Indexed: 02/05/2023] Open
Abstract
NF-κB pathway consists of canonical and non-canonical pathways. The canonical NF-κB is activated by various stimuli, transducing a quick but transient transcriptional activity, to regulate the expression of various proinflammatory genes and also serve as the critical mediator for inflammatory response. Meanwhile, the activation of the non-canonical NF-κB pathway occurs through a handful of TNF receptor superfamily members. Since the activation of this pathway involves protein synthesis, the kinetics of non-canonical NF-κB activation is slow but persistent, in concordance with its biological functions in the development of immune cell and lymphoid organ, immune homeostasis and immune response. The activation of the canonical and non-canonical NF-κB pathway is tightly controlled, highlighting the vital roles of ubiquitination in these pathways. Emerging studies indicate that dysregulated NF-κB activity causes inflammation-related diseases as well as cancers, and NF-κB has been long proposed as the potential target for therapy of diseases. This review attempts to summarize our current knowledge and updates on the mechanisms of NF-κB pathway regulation and the potential therapeutic application of inhibition of NF-κB signaling in cancer and inflammatory diseases.
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Affiliation(s)
- Hui Yu
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Liangbin Lin
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhiqiang Zhang
- Immunobiology and Transplant Science Center, Houston Methodist Hospital, Houston, TX, 77030, USA
| | - Huiyuan Zhang
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.
| | - Hongbo Hu
- Department of Rheumatology and Immunology, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.
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