1
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Chen L, Mamutova A, Kozlova A, Latysheva E, Evgeny F, Latysheva T, Savostyanov K, Pushkov A, Zhanin I, Raykina E, Kurnikova M, Mersiyanova I, Platt CD, Jee H, Brodeur K, Du Y, Liu M, Weiss A, Schulert GS, Rodriguez-Smith J, Hershfield MS, Aksentijevich I, Zhou Q, Nigrovic PA, Shcherbina A, Alexeeva E, Lee PY. Comparison of disease phenotypes and mechanistic insight on causal variants in patients with DADA2. J Allergy Clin Immunol 2023; 152:771-782. [PMID: 37150360 DOI: 10.1016/j.jaci.2023.04.014] [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: 06/30/2022] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/09/2023]
Abstract
BACKGROUND Deficiency of adenosine deaminase 2 (DADA2) results in heterogeneous manifestations including systemic vasculitis and red cell aplasia. The basis of different disease phenotypes remains incompletely defined. OBJECTIVE We sought to further delineate disease phenotypes in DADA2 and define the mechanistic basis of ADA2 variants. METHODS We analyzed the clinical features and ADA2 variants in 33 patients with DADA2. We compared the transcriptomic profile of 14 patients by bulk RNA sequencing. ADA2 variants were expressed experimentally to determine impact on protein production, trafficking, release, and enzymatic function. RESULTS Transcriptomic analysis of PBMCs from DADA2 patients with the vasculitis phenotype or pure red cell aplasia phenotype exhibited similar upregulation of TNF, type I interferon, and type II interferon signaling pathways compared with healthy controls. These pathways were also activated in 3 asymptomatic individuals with DADA2. Analysis of ADA2 variants, including 7 novel variants, showed different mechanisms of functional disruption including (1) unstable transcript leading to RNA degradation; (2) impairment of ADA2 secretion because of retention in the endoplasmic reticulum; (3) normal expression and secretion of ADA2 that lacks enzymatic function; and (4) disruption of the N-terminal signal peptide leading to cytoplasmic localization of unglycosylated protein. CONCLUSIONS Transcriptomic signatures of inflammation are observed in patients with different disease phenotypes, including some asymptomatic individuals. Disease-associated ADA2 variants affect protein function by multiple mechanisms, which may contribute to the clinical heterogeneity of DADA2.
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Affiliation(s)
- Liang Chen
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Anna Mamutova
- Federal State Autonomous Institution "National Medical Research Center for Children's Health" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Anna Kozlova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | | | - Frolov Evgeny
- NRC Institute of Immunology FMBA of Russia, Moscow, Russia
| | | | - Kirill Savostyanov
- Federal State Autonomous Institution "National Medical Research Center for Children's Health" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alexander Pushkov
- Federal State Autonomous Institution "National Medical Research Center for Children's Health" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Ilya Zhanin
- Federal State Autonomous Institution "National Medical Research Center for Children's Health" of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elena Raykina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Maria Kurnikova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Irina Mersiyanova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Craig D Platt
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Hyuk Jee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Kailey Brodeur
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Yan Du
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass; Department of Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Meng Liu
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Aaron Weiss
- Department of Pediatrics, Maine Medical Center, Portland, Me
| | - Grant S Schulert
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jackeline Rodriguez-Smith
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Michael S Hershfield
- Department of Medicine and Biochemistry, Duke University School of Medicine, Durham, NC
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, Bethesda, Md
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Peter A Nigrovic
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass; Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, Boston, Mass
| | - Anna Shcherbina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Ekaterina Alexeeva
- Federal State Autonomous Institution "National Medical Research Center for Children's Health" of the Ministry of Health of the Russian Federation, Moscow, Russia; Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass.
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Maccora I, Maniscalco V, Campani S, Carrera S, Abbati G, Marrani E, Mastrolia MV, Simonini G. A wide spectrum of phenotype of deficiency of deaminase 2 (DADA2): a systematic literature review. Orphanet J Rare Dis 2023; 18:117. [PMID: 37179309 PMCID: PMC10183141 DOI: 10.1186/s13023-023-02721-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
INTRODUCTION Deficiency of adenosine deaminase 2 (DADA2) is a rare monogenic autoinflammatory disease, whose clinical phenotype was expanded since the first cases, originally described as mimicker of polyarteritis nodosa, with immunodeficiency and early-onset stroke. METHODS A systematic review according to PRISMA approach, including all articles published before the 31st of August 2021 in Pubmed and EMBASE database was performed. RESULTS The search identified 90 publications describing 378 unique patients (55.8% male). To date 95unique mutations have been reported. The mean age at disease onset was 92.15 months (range 0-720 months), 32 (8.5%) showed an onset of the first signs/symptoms after 18 years old and 96 (25.4%) after 10 years old. The most frequent clinical characteristics described were cutaneous (67.9%), haematological manifestations (56.3%), recurrent fever (51.3%), neurological as stroke and polyneuropathy (51%), immunological abnormalities (42.3%), arthralgia/arthritis (35.4%), splenomegaly (30.6%), abdominal involvement (29.8%), hepatomegaly (23.5%), recurrent infections (18.5%), myalgia (17.9%), kidney involvement (17.7%) etc. Patients with skin manifestations were older than the others (101.1 months SD ± 116.5, vs. 75.3 SD ± 88.2, p 0.041), while those with a haematological involvement (64.1 months SD ± 75.6 vs. 133.1 SD ± 133.1, p < 0.001) and immunological involvement (73.03 months SD ± 96.9 vs. 103.2 SD ± 112.9, p 0.05) are younger than the others. We observed different correlations among the different clinical manifestations. The use of anti-TNFα and hematopoietic cell stems transplantation (HCST) has improved the current history of the disease. CONCLUSION Due to this highly variable phenotype and age of presentation, patients with DADA2 may present to several type of specialists. Given the important morbidity and mortality, early diagnosis and treatment are mandatory.
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Affiliation(s)
- Ilaria Maccora
- Rheumatology Unit, ERN ReConnet Center, Meyer Children's Hospital IRCCS, Florence, Italy.
- NeuroFARBA Department, University of Florence, Florence, Italy.
| | | | - Silvia Campani
- School of Health Science, University of Florence, Florence, Italy
| | - Simona Carrera
- School of Health Science, University of Florence, Florence, Italy
| | - Giulia Abbati
- School of Health Science, University of Florence, Florence, Italy
| | - Edoardo Marrani
- Rheumatology Unit, ERN ReConnet Center, Meyer Children's Hospital IRCCS, Florence, Italy
| | | | - Gabriele Simonini
- Rheumatology Unit, ERN ReConnet Center, Meyer Children's Hospital IRCCS, Florence, Italy
- NeuroFARBA Department, University of Florence, Florence, Italy
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3
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Internuclear Ophthalmoplegia in a Child With Deficiency of Adenosine Deaminase 2. J Neuroophthalmol 2023; 43:e12-e13. [PMID: 34629408 DOI: 10.1097/wno.0000000000001354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Sharma V, Deo P, Sharma A. Deficiency of adenosine deaminase 2 (DADA2): Review. Best Pract Res Clin Rheumatol 2023; 37:101844. [PMID: 37328410 DOI: 10.1016/j.berh.2023.101844] [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: 03/29/2023] [Revised: 05/17/2023] [Accepted: 05/21/2023] [Indexed: 06/18/2023]
Abstract
The deficiency of adenosine deaminase 2 (DADA2) is an autosomal recessive disease caused by loss-of-function (LOF) mutations in the ADA2 gene and was first described in 2014. Initially, it was described as vasculopathy/vasculitis that mostly affected infants and young children and closely resembled polyarteritis nodosa (PAN). Skin rash and ischemic/hemorrhagic stroke are predominant symptoms. However, the clinical spectrum of DADA2 has continued to expand since then. It has now been reported in adults as well. Besides vasculitis-related manifestations, hematological, immunological, and autoinflammatory manifestations are now well recognized. More than 100 disease-causing mutations have been described. The decrease in ADA2 enzyme leads to an increased extracellular adenosine level that, in turn, triggers a proinflammatory cascade. The disease is highly variable, and patients carrying same mutation may have different ages of presentation and clinical features. Anti-tumor necrosis factor (TNF) agents are mainstay of treatment of the vasculitis/vasculopathy phenotype. Hematopoietic stem cell transplant (HSCT) has been performed in patients with severe hematological manifestations. Recombinant ADA2 protein and gene therapy hold a promise for future.
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Affiliation(s)
- Vikas Sharma
- Rheumatology Superspeciality Cell, Department of Medicine, IGMC Shimla and Clinical Immunology and Rheumatology Division, Department of Internal Medicine, PGIMER, Chandigarh, India
| | - Prateek Deo
- Rheumatology Superspeciality Cell, Department of Medicine, IGMC Shimla and Clinical Immunology and Rheumatology Division, Department of Internal Medicine, PGIMER, Chandigarh, India
| | - Aman Sharma
- Rheumatology Superspeciality Cell, Department of Medicine, IGMC Shimla and Clinical Immunology and Rheumatology Division, Department of Internal Medicine, PGIMER, Chandigarh, India.
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Li GM, Han X, Wu Y, Wang W, Tang HX, Lu MP, Tang XM, Lin Y, Deng F, Yang J, Wang XN, Liu CC, Zheng WJ, Wu BB, Zhou F, Luo H, Zhang L, Liu HM, Guan WZ, Wang SH, Tao PF, Jin TJ, Fang R, Wu Y, Zhang J, Zhang Y, Zhang TN, Yin W, Guo L, Tang WJ, Chang H, Zhang QY, Li XZ, Li JG, Zhou ZX, Yang SR, Yang KK, Xu H, Song HM, Deuitch NT, Lee PY, Zhou Q, Sun L. A Cohort Study on Deficiency of ADA2 from China. J Clin Immunol 2023; 43:835-845. [PMID: 36807221 PMCID: PMC10110724 DOI: 10.1007/s10875-023-01432-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 01/08/2023] [Indexed: 02/21/2023]
Abstract
PURPOSE Deficiency of adenosine deaminase 2 (DADA2), an autosomal recessive autoinflammatory disorder caused by biallelic loss-of-function variants in adenosine deaminase 2 (ADA2), has not been systemically investigated in Chinese population yet. We aim to further characterize DADA2 cases in China. METHODS A retrospective analysis of patients with DADA2 identified through whole exome sequencing (WES) at seventeen rheumatology centers across China was conducted. Clinical characteristics, laboratory findings, genotype, and treatment response were analyzed. RESULTS Thirty patients with DADA2 were enrolled between January 2015 and December 2021. Adenosine deaminase 2 enzymatic activity was low in all tested cases to confirm pathogenicity. Median age of disease presentation was 4.3 years and the median age at diagnosis was 7.8 years. All but one patient presented during childhood and two subjects died from complications of their disease. The patients most commonly presented with systemic inflammation (92.9%), vasculitis (86.7%), and hypogammaglobinemia (73.3%) while one patient presented with bone marrow failure (BMF) with variable cytopenia. Twenty-three (76.7%) patients were treated with TNF inhibitors (TNFi), while two (6.7%) underwent hematopoietic stem cell transplantation (HSCT). They all achieved clinical remission. A total of thirty-nine ADA2 causative variants were identified, six of which were novel. CONCLUSION To establish early diagnosis and improve clinical outcomes, genetic screening and/or testing of ADA2 enzymatic activity should be performed in patients with suspected clinical features. TNFi is considered as first line treatment for those with vascular phenotypes. HSCT may be beneficial for those with hematological disease or in those who are refractory to TNFi.
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Affiliation(s)
- Guo-Min Li
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Xu Han
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ye Wu
- Peking University First Hospital, Beijing, China
| | - Wei Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Hong-Xia Tang
- Wuhan Children's Hospital Tongji Medical College Huazhong University of Science & Technology, Wuhan, China
| | - Mei-Ping Lu
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xue-Mei Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Lin
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fan Deng
- The Children's Hospital of Soochow, Suzhou, China
| | - Jun Yang
- Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen, China
| | - Xin-Ning Wang
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Cong-Cong Liu
- Division of Rheumatology, Immunology & Allergy in the Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Wen-Jie Zheng
- Department of Rheumatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bing-Bing Wu
- National Children's Medical Center, Shanghai, China.,Medical Transformation Centre, Children's Hospital of Fudan University, Shanghai, China
| | - Fang Zhou
- No. 960 Hospital of the Joint Service Support Force of the Chinese People's Liberation Army, Jinan, China
| | - Hong Luo
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Liang Zhang
- Hunan Provincial People's Hospital, Hunan, China
| | - Hai-Mei Liu
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Wan-Zhen Guan
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Shi-Hao Wang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Pan-Feng Tao
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Tai-Jie Jin
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ran Fang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yuan Wu
- Peking University First Hospital, Beijing, China
| | - Jie Zhang
- Peking University First Hospital, Beijing, China
| | - Yao Zhang
- Peking University First Hospital, Beijing, China
| | - Tian-Nan Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Yin
- Wuhan Children's Hospital Tongji Medical College Huazhong University of Science & Technology, Wuhan, China
| | - Li Guo
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wen-Jing Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Hong Chang
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qiu-Ye Zhang
- Affiliated Hospital of Qingdao University, Qingdao, China
| | | | - Jian-Guo Li
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Zhi-Xuan Zhou
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Si-Rui Yang
- Division of Rheumatology, Immunology & Allergy in the Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Kang-Kang Yang
- Department of Rheumatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong Xu
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Hong-Mei Song
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | | | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou, China.
| | - Li Sun
- National Children's Medical Center, Shanghai, China. .,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China.
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6
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Jia Q, Hao RJL, Lu XJ, Sun SQ, Shao JJ, Su X, Huang QF. Identification of hub biomarkers and immune cell infiltration characteristics of polymyositis by bioinformatics analysis. Front Immunol 2022; 13:1002500. [PMID: 36225941 PMCID: PMC9548705 DOI: 10.3389/fimmu.2022.1002500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Background Polymyositis (PM) is an acquirable muscle disease with proximal muscle involvement of the extremities as the main manifestation; it is a category of idiopathic inflammatory myopathy. This study aimed to identify the key biomarkers of PM, while elucidating PM-associated immune cell infiltration and immune-related pathways. Methods The gene microarray data related to PM were downloaded from the Gene Expression Omnibus database. The analyses using Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes, gene set enrichment analysis (GSEA), and protein-protein interaction (PPI) networks were performed on differentially expressed genes (DEGs). The hub genes of PM were identified using weighted gene co-expression network analysis (WGCNA) and least absolute shrinkage and selection operator (LASSO) algorithm, and the diagnostic accuracy of hub markers for PM was assessed using the receiver operating characteristic curve. In addition, the level of infiltration of 28 immune cells in PM and their interrelationship with hub genes were analyzed using single-sample GSEA. Results A total of 420 DEGs were identified. The biological functions and signaling pathways closely associated with PM were inflammatory and immune processes. A series of four expression modules were obtained by WGCNA analysis, with the turquoise module having the highest correlation with PM; 196 crossover genes were obtained by combining DEGs. Subsequently, six hub genes were finally identified as the potential biomarkers of PM using LASSO algorithm and validation set verification analysis. In the immune cell infiltration analysis, the infiltration of T lymphocytes and subpopulations, dendritic cells, macrophages, and natural killer cells was more significant in the PM. Conclusion We identified the hub genes closely related to PM using WGCNA combined with LASSO algorithm, which helped clarify the molecular mechanism of PM development and might have great significance for finding new immunotherapeutic targets, and disease prevention and treatment.
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Affiliation(s)
- Qi Jia
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
| | - Rui-Jin-Lin Hao
- Medical School of Nantong University, Nantong, China
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiao-Jian Lu
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Shu-Qing Sun
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Jun-Jie Shao
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Xing Su
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Qing-Feng Huang, ; Xing Su,
| | - Qing-Feng Huang
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
- *Correspondence: Qing-Feng Huang, ; Xing Su,
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7
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Signa S, Bertoni A, Penco F, Caorsi R, Cafaro A, Cangemi G, Volpi S, Gattorno M, Schena F. Adenosine Deaminase 2 Deficiency (DADA2): A Crosstalk Between Innate and Adaptive Immunity. Front Immunol 2022; 13:935957. [PMID: 35898506 PMCID: PMC9309328 DOI: 10.3389/fimmu.2022.935957] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/10/2022] [Indexed: 11/30/2022] Open
Abstract
Deficiency of Adenosine deaminase 2 (DADA2) is a monogenic autoinflammatory disorder presenting with a broad spectrum of clinical manifestations, including immunodeficiency, vasculopathy and hematologic disease. Biallelic mutations in ADA2 gene have been associated with a decreased ADA2 activity, leading to reduction in deamination of adenosine and deoxyadenosine into inosine and deoxyinosine and subsequent accumulation of extracellular adenosine. In the early reports, the pivotal role of innate immunity in DADA2 pathogenic mechanism has been underlined, showing a skewed polarization from the M2 macrophage subtype to the proinflammatory M1 subtype, with an increased production of inflammatory cytokines such as TNF-α. Subsequently, a dysregulation of NETosis, triggered by the excess of extracellular Adenosine, has been implicated in the pathogenesis of DADA2. In the last few years, evidence is piling up that adaptive immunity is profoundly altered in DADA2 patients, encompassing both T and B branches, with a disrupted homeostasis in T-cell subsets and a B-cell skewing defect. Type I/type II IFN pathway upregulation has been proposed as a possible core signature in DADA2 T cells and monocytes but also an increased IFN-β secretion directly from endothelial cells has been described. So far, a unifying clear pathophysiological explanation for the coexistence of systemic inflammation, immunedysregulation and hematological defects is lacking. In this review, we will explore thoroughly the latest understanding regarding DADA2 pathophysiological process, with a particular focus on dysregulation of both innate and adaptive immunity and their interacting role in the development of the disease.
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Affiliation(s)
- Sara Signa
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Arinna Bertoni
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal-Child Sciences (DINOGMI), University of Genoa, Genoa, Italy
| | - Federica Penco
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Roberta Caorsi
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Alessia Cafaro
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Giuliana Cangemi
- Chromatography and Mass Spectrometry Section, Central Laboratory of Analysis, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Stefano Volpi
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal-Child Sciences (DINOGMI), University of Genoa, Genoa, Italy
| | - Marco Gattorno
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
- *Correspondence: Marco Gattorno,
| | - Francesca Schena
- Center for Autoinflammatory Diseases and Immunodeficiencies, Istituto di Ricovero e cura a carattere scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
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8
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Al‐shaikh R, Alnowaiser D, Peer‐Zada AA, Almutairi A, Alghamdi H. Atypical presentation of adenosine deaminase 2 deficiency with bi‐allelic ADA2 mutation. Clin Case Rep 2022; 10:e05408. [PMID: 35261770 PMCID: PMC8888922 DOI: 10.1002/ccr3.5408] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/12/2022] [Accepted: 01/21/2022] [Indexed: 11/11/2022] Open
Abstract
Herein, we report a case of VAIHS with atypical clinical presentation of perianal abscess, fistula fever, and bi‐cytopenia including pathogenic ADA2 mutation suggesting that ADA2 deficiency be considered as a differential diagnosis of enlarging cutaneous abscess with no evidence of wound healing in the setting of leukopenia and neutropenia.
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Affiliation(s)
- Reem Al‐shaikh
- General Pediatrics Department, Allergy and Immunology Section Children's Specialized Hospital King Fahad Medical City Riyadh Saudi Arabia
| | - Dimah Alnowaiser
- General Pediatrics Department, Allergy and Immunology Section Children's Specialized Hospital King Fahad Medical City Riyadh Saudi Arabia
| | - Abdul Ali Peer‐Zada
- Molecular Pathology (Genetics) Section, Pathology and Clinical Laboratory Medicine Administration King Fahad Medical City Riyadh Saudi Arabia
| | - Awatif Almutairi
- General Pediatrics Department, Allergy and Immunology Section Children's Specialized Hospital King Fahad Medical City Riyadh Saudi Arabia
| | - Hamza Alghamdi
- General Pediatrics Department, Allergy and Immunology Section Children's Specialized Hospital King Fahad Medical City Riyadh Saudi Arabia
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9
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Escherich C, Bötticher B, Harmsen S, Hömberg M, Schaper J, Lorenz MR, Schwarz K, Borkhardt A, Oommen PT. The Growing Spectrum of DADA2 Manifestations-Diagnostic and Therapeutic Challenges Revisited. Front Pediatr 2022; 10:885893. [PMID: 35774100 PMCID: PMC9237362 DOI: 10.3389/fped.2022.885893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/20/2022] [Indexed: 12/23/2022] Open
Abstract
Deficiency of Adenosine Deaminase Type 2 (DADA2) is a rare autosomal recessive inherited disorder with a variable phenotype including generalized or cerebral vasculitis and bone marrow failure. It is caused by variations in the adenosine deaminase 2 gene (ADA2), which leads to decreased adenosine deaminase 2 enzyme activity. Here we present three instructive scenarios that demonstrate DADA2 spectrum characteristics and provide a clear and thorough diagnostic and therapeutic workflow for effective patient care. Patient 1 illustrates cerebral vasculitis in DADA2. Genetic analysis reveals a compound heterozygosity including the novel ADA2 variant, p.V325Tfs*7. In patient 2, different vasculitis phenotypes of the DADA2 spectrum are presented, all resulting from the homozygous ADA2 mutation p.Y453C. In this family, the potential risk for siblings is particularly evident. Patient 3 represents pure red cell aplasia with bone marrow failure in DADA2. Here, ultimately, stem cell transplantation is considered the curative treatment option. The diversity of the DADA2 spectrum often delays diagnosis and treatment of this vulnerable patient cohort. We therefore recommend early ADA2 enzyme activity measurement as a screening tool for patients and siblings at risk, and we expect early steroid-based remission induction will help avoid fatal outcomes.
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Affiliation(s)
- Carolin Escherich
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Benedikt Bötticher
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Stefani Harmsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Hospital, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Marc Hömberg
- Department of Pediatric Hematology and Oncology, Medical Faculty, University of Cologne, Cologne, Germany
| | - Jörg Schaper
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Hospital, Heinrich Heine University, Düsseldorf, Germany
| | - Myriam Ricarda Lorenz
- Institute for Transfusion Medicine, University Hospital, Medical Faculty, Ulm University, Ulm, Germany
| | - Klaus Schwarz
- Institute for Transfusion Medicine, University Hospital, Medical Faculty, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Württemberg - Hessen, Ulm, Germany
| | - Arndt Borkhardt
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Prasad Thomas Oommen
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
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10
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Albalawi R, Hanafy E, Alnafea H, Altowijiry M, Riyad S, Abufara F, Albolowi N. Novel Adenosine Deaminase 2 (ADA2) Mutations Associated With Hematological Manifestations. J Investig Med High Impact Case Rep 2021; 9:23247096211056770. [PMID: 34845942 PMCID: PMC8637373 DOI: 10.1177/23247096211056770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Recent progress in laboratory techniques, particularly, identification of novel disease-causing genes, has led to the detection of different gene mutations that might be implicated in the pathogenesis of different hematological disorders like pure red cell aplasia (PRCA) and neutropenia. An autoinflammatory disorder known as deficiency of adenosine deaminase 2 (DADA2) has been recently noticed to present with variable hematologic abnormalities. We report 2 patients who presented with hematologic abnormalities in which 2 ADA2 gene mutations were detected. The first case is a 5-year-old girl who presented with severe PRCA and autoimmune hemolytic anemia without any other manifestation of DADA2 that resulted from a novel CECR1 c.714_738dup, p. (Ala247Glnfs*16) homozygous variant. The second case is a 10-year-old boy, known to have Hodgkin lymphoma and was under follow-up for 6 years; he presented with persistent neutropenia and was discovered to be homozygous for ADA2 c.1447_1451del, p. (Ser483Profs*5). In conclusion, we report two different novels ADA2 variants in two children; the first presented with PRCA and the second presented with persistent neutropenia. This report aims to raise the concerns regarding the use of genetic testing in different hematologic diseases with indefinite etiology, as it will lead to the best therapeutic strategies without the need for unnecessary interventions.
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Affiliation(s)
| | - Ehab Hanafy
- King Salman Armed Forces Hospital, Tabuk, Saudi Arabia
| | | | | | - Shaima Riyad
- King Salman Armed Forces Hospital, Tabuk, Saudi Arabia
| | - Fadwa Abufara
- King Salman Armed Forces Hospital, Tabuk, Saudi Arabia
| | - Naif Albolowi
- King Salman Armed Forces Hospital, Tabuk, Saudi Arabia
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11
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Yap JY, Moens L, Lin MW, Kane A, Kelleher A, Toong C, Wu KHC, Sewell WA, Phan TG, Hollway GE, Enthoven K, Gray PE, Casas-Martin J, Wouters C, De Somer L, Hershfield M, Bucciol G, Delafontaine S, Ma CS, Tangye SG, Meyts I. Intrinsic Defects in B Cell Development and Differentiation, T Cell Exhaustion and Altered Unconventional T Cell Generation Characterize Human Adenosine Deaminase Type 2 Deficiency. J Clin Immunol 2021; 41:1915-1935. [PMID: 34657246 PMCID: PMC8604888 DOI: 10.1007/s10875-021-01141-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/22/2021] [Indexed: 01/08/2023]
Abstract
PURPOSE Deficiency of adenosine deaminase type 2 (ADA2) (DADA2) is a rare inborn error of immunity caused by deleterious biallelic mutations in ADA2. Clinical manifestations are diverse, ranging from severe vasculopathy with lacunar strokes to immunodeficiency with viral infections, hypogammaglobulinemia and bone marrow failure. Limited data are available on the phenotype and function of leukocytes from DADA2 patients. The aim of this study was to perform in-depth immunophenotyping and functional analysis of the impact of DADA2 on human lymphocytes. METHODS In-depth immunophenotyping and functional analyses were performed on ten patients with confirmed DADA2 and compared to heterozygous carriers of pathogenic ADA2 mutations and normal healthy controls. RESULTS The median age of the patients was 10 years (mean 20.7 years, range 1-44 years). Four out of ten patients were on treatment with steroids and/or etanercept or other immunosuppressives. We confirmed a defect in terminal B cell differentiation in DADA2 and reveal a block in B cell development in the bone marrow at the pro-B to pre-B cell stage. We also show impaired differentiation of CD4+ and CD8+ memory T cells, accelerated exhaustion/senescence, and impaired survival and granzyme production by ADA2 deficient CD8+ T cells. Unconventional T cells (i.e. iNKT, MAIT, Vδ2+ γδT) were diminished whereas pro-inflammatory monocytes and CD56bright immature NK cells were increased. Expression of the IFN-induced lectin SIGLEC1 was increased on all monocyte subsets in DADA2 patients compared to healthy donors. Interestingly, the phenotype and function of lymphocytes from healthy heterozygous carriers were often intermediate to that of healthy donors and ADA2-deficient patients. CONCLUSION Extended immunophenotyping in DADA2 patients shows a complex immunophenotype. Our findings provide insight into the cellular mechanisms underlying some of the complex and heterogenous clinical features of DADA2. More research is needed to design targeted therapy to prevent viral infections in these patients with excessive inflammation as the overarching phenotype.
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Affiliation(s)
- Jin Yan Yap
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia
| | - Leen Moens
- Department of Microbiology, Immunology and Transplantation, Laboratory for Inborn Errors of Immunity, KU Leuven, Herestraat 49, 3000, Leuven, EU, Belgium
| | - Ming-Wei Lin
- Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia.,Department of Clinical Immunology and Immunopathology, Westmead Hospital, Westmead, NSW, Australia.,Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Alisa Kane
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia.,Department of Immunology, Liverpool Hospital, Allergy and HIV, Liverpool, Sydney, Australia.,HIV and Immunology Unit, St Vincent's Hospital, Darlinghurst, NSW, Australia.,Faculty of Medicine, St Vincent's Clinical School, Sydney, NSW, Australia
| | - Anthony Kelleher
- HIV and Immunology Unit, St Vincent's Hospital, Darlinghurst, NSW, Australia.,The Kirby Institute for Infection and Immunity in Society, Sydney, Australia
| | - Catherine Toong
- Department of Immunology, Liverpool Hospital, Allergy and HIV, Liverpool, Sydney, Australia
| | - Kathy H C Wu
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St Vincent's Clinical Genomics, St Vincent's Hospital Darlinghurst, Darlinghurst, NSW, Australia.,School of Medicine, UNSW Sydney, Sydney, Australia.,Discipline of Genetic Medicine, University of Sydney, Sydney, Australia.,School of Medicine, University of Notre Dame, Fremantle, Australia
| | - William A Sewell
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Faculty of Medicine, St Vincent's Clinical School, Sydney, NSW, Australia
| | - Tri Giang Phan
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia.,HIV and Immunology Unit, St Vincent's Hospital, Darlinghurst, NSW, Australia
| | - Georgina E Hollway
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia
| | - Karen Enthoven
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia
| | - Paul E Gray
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, Australia.,School of Women's and Children's Health, UNSW Sydney, Sydney, NSW, Australia
| | - Jose Casas-Martin
- Department of Microbiology, Immunology and Transplantation, Laboratory for Inborn Errors of Immunity, KU Leuven, Herestraat 49, 3000, Leuven, EU, Belgium
| | - Carine Wouters
- Department of Microbiology and Immunology, Herestraat 49, 3000, Leuven, EU, Belgium.,Department of Pediatrics, University Hospitals Leuven, Leuven, EU, Belgium
| | - Lien De Somer
- Department of Microbiology and Immunology, Herestraat 49, 3000, Leuven, EU, Belgium.,Department of Pediatrics, University Hospitals Leuven, Leuven, EU, Belgium
| | - Michael Hershfield
- Department of Medicine and Biochemistry, Duke University Medical Center, Durham, NC, USA
| | - Giorgia Bucciol
- Department of Microbiology, Immunology and Transplantation, Laboratory for Inborn Errors of Immunity, KU Leuven, Herestraat 49, 3000, Leuven, EU, Belgium.,Department of Pediatrics, Division of Inborn Errors of Immunity, University Hospitals Leuven, Herestraat 49, 3000, Leuven, EU Leuven, Belgium
| | - Selket Delafontaine
- Department of Microbiology, Immunology and Transplantation, Laboratory for Inborn Errors of Immunity, KU Leuven, Herestraat 49, 3000, Leuven, EU, Belgium.,Department of Pediatrics, Division of Inborn Errors of Immunity, University Hospitals Leuven, Herestraat 49, 3000, Leuven, EU Leuven, Belgium
| | - Cindy S Ma
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia.,Faculty of Medicine, St Vincent's Clinical School, Sydney, NSW, Australia
| | - Stuart G Tangye
- Garvan Institute of Medical Research, Darlinghurst, NSW, Australia. .,Clinical Immunogenomics Research Consortium of Australasia (CIRCA), Sydney, NSW, Australia. .,Faculty of Medicine, St Vincent's Clinical School, Sydney, NSW, Australia.
| | - Isabelle Meyts
- Department of Microbiology, Immunology and Transplantation, Laboratory for Inborn Errors of Immunity, KU Leuven, Herestraat 49, 3000, Leuven, EU, Belgium. .,Department of Medicine and Biochemistry, Duke University Medical Center, Durham, NC, USA.
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12
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Vasculitic peripheral neuropathy in deficiency of adenosine deaminase 2. Neuromuscul Disord 2021; 31:891-895. [PMID: 34210540 DOI: 10.1016/j.nmd.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 11/21/2022]
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is an autosomal recessive inflammatory vasculopathy characterized by systemic vasculitis, early-onset stroke and livedo racemosa. We report a family cohort of 3 patients with ADA2 compound heterozygous mutation p.[Thr360Ala] and [Gly383Ser]. Two of them had progressive involvement of the peripheral nervous system in the fourth decade, both after stroke. In one patient, clinical and neurophysiological studies showed progression of mononeuritis multiplex to chronic axonal sensorimotor polyneuropathy, nerve biopsy had features of small vessel vasculitic neuropathy, and muscle biopsy disclosed neurogenic atrophy with reinnervation. The second patient presented with progressive sensory symptoms of the lower limbs and chronic axonal sensorimotor polyneuropathy in nerve conduction studies. These two patients had absent plasma ADA2 activity. The third patient had no neurological affection despite low, but not absent, plasma ADA2 activity. Patients were started on a tumor necrosis factor (TNF) inhibitor, which has presumed benefits for the vasculitic phenotype of DADA2.
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13
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Pinto B, Deo P, Sharma S, Syal A, Sharma A. Expanding spectrum of DADA2: a review of phenotypes, genetics, pathogenesis and treatment. Clin Rheumatol 2021; 40:3883-3896. [PMID: 33791889 DOI: 10.1007/s10067-021-05711-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/16/2021] [Accepted: 03/21/2021] [Indexed: 01/02/2023]
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is a monogenic disease caused by biallelic mutations in ADA2 gene (previously CECR1). The aim of this review was to describe the clinical phenotypes, genetics, pathogenesis and treatment of DADA2. ADA2 is highly expressed on myeloid cells and deficiency leads to polarisation of macrophages to an M1 inflammatory type and activation of neutrophils. The pathogenesis of immunological and haematological manifestations is less clear. The spectrum of clinical presentations varies widely from asymptomatic individual to severe vasculitis, several autoinflammatory, immunological and haematological manifestations. Initially considered a childhood disease, the first presentation is now being reported well into adulthood. Vasculitis closely resembles polyarteritis nodosa. Livedoid reticularis/racemosa like skin rash and central nervous system involvement in the form of ischemic or haemorrhagic stroke are dominant manifestations. Immunological manifestations include hypogammaglobulinemia and recurrent infections. Lymphopenia is the most common haematological manifestation; pure red cell aplasia and bone marrow failure has been reported in severe cases. The disease is extremely heterogeneous with variable severity noted in patients with the same mutation and even within family members. Tumour necrosis factor inhibitors are currently the treatment of choice for vasculitic and inflammatory manifestations and also prevent strokes. Haematopoietic stem cell transplantation is a curative option for severe haematological manifestations like pure red cell aplasia, bone marrow failure and immunodeficiency. Further research is required to understand pathogenesis and all clinical aspects of this disease to enable early diagnosis and prompt treatment. Key Points • Deficiency of adenosine deaminase 2 (DADA2) is a monogenic disease caused by biallelic mutations in ADA2 gene. • The clinical features include vasculitis resembling polyarteritis nodosa, autoinflammation, haematological manifestations and immunodeficiency. • The severity varies widely from mild to fatal even in patients within a family and with the same mutation. • The treatment of choice for inflammatory and vasculitic disease is tumour necrosis factor α blockers. Bone marrow transplant may be considered for severe haematological disease.
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Affiliation(s)
- Benzeeta Pinto
- Department of Clinical Immunology and Rheumatology, St. John's National Academy of Health Sciences, Bangalore, India
| | - Prateek Deo
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Susmita Sharma
- Department of Obstetrics and Gynaecology, Adesh Medical College and Hospital, Mohri, Ambala, India
| | - Arshi Syal
- Government Medical College and Hospital, Sector 32, Chandigarh, India
| | - Aman Sharma
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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14
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Zhang B, Sun Y, Xu N, Wang W, Huang X, Chen J, Shen M, Wang R, Zeng X, Zhang X. Adult-onset deficiency of adenosine deaminase 2-a case report and literature review. Clin Rheumatol 2021; 40:4325-4339. [PMID: 33638065 DOI: 10.1007/s10067-021-05587-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/05/2021] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is an autosomal recessive disease caused by ADA2 gene mutation that is characterized by three phenotype domains: vasculopathy and inflammation, hematological abnormality, and immunodeficiency. Most patients are pediatric patients; adult-onset patients are only occasionally reported. To describe a Chinese case of adult-onset DADA2 in a Chinese patient and explore the genotype and phenotype characteristics of adult-onset DADA2. We examined the clinical, serological, and genetic features of a Chinese adult-onset DADA2 patient. English literature on DADA2 was reviewed. The clinical and genetic characteristics of different age and mutation subgroups were compared. A Chinese Han male presented with recurrent fever, rash, immunodeficiency, and significant vascular events since the age of 25 years. Serum ADA2 activity was diminished, and genotyping revealed a unique compound heterozygous mutation of exon2-10del/exon7del in the ADA2 gene leading to complete exon 7 deletion. Treatment with a TNFα inhibitor achieved disease control. A total of 269 cases carrying 102 mutations were analyzed through a literature review. Adult-onset patients had few symptoms in all three clinical domains; vasculopathy and inflammation were the major symptoms. Patients with null mutations had early disease onset and more frequent hematological abnormalities and immunodeficiency. Patients in all subgroups responded well to TNFα inhibitors. We reported the first Chinese adult-onset DADA2 patient, with a unique mutation. Screening for and differentiation of DADA2 are recommended for patients of all ages, as they might become symptomatic later in life and treatment strategies differ from those of traditional vasculitis. Key Points • We report a novel compound heterozygous deletion mutations of exons 2-10 and exon 7, leading to complete loss of exon 7 in the ADA2 gene. • Adult-onset DADA2 patients had high similarity to systemic vasculitis. • Null mutations contribute to earlier disease onset and more aggressive disease. • We suggest screening for DADA2 in patients with significant central vasculitis, hematological abnormality and immunodeficiency.
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Affiliation(s)
- Bingqing Zhang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Yang Sun
- McKusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Na Xu
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Wei Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
| | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Jialin Chen
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Min Shen
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - Rongrong Wang
- McKusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China.
| | - Xuejun Zeng
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, NO. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - Xue Zhang
- McKusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
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15
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Süleyman M, Tan Ç, Uner A, İnkaya Ç, Aytaç S, Büyükaşık Y, Boztug K, Tezcan İ, Cagdas D. Adenosine Deaminase Type II Deficiency: Severe Chronic Neutropenia, Lymphoid Infiltration in Bone Marrow, and Inflammatory Features. Immunol Invest 2020; 51:558-566. [PMID: 33705245 DOI: 10.1080/08820139.2020.1853153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Deficiency of adenosine deaminase type 2 (DADA2) is an autoinflammatory disease characterized with immunologic, hematologic, and neurological features. Here, we presented two patients with severe persistent chronic neutropenia, which required differential diagnosis of congenital and autoimmune neutropenia, myelodysplastic syndrome (MDS), and primary immunodeficiency diseases, including autoimmune lymphoproliferative disease. The therapy of the disease except hematopoietic stem cell transplantation is a challenging experience.
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Affiliation(s)
- Merve Süleyman
- Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Çağman Tan
- Department of Pediatric Immunology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Aysegul Uner
- Department of Pathology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Çağkan İnkaya
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Selin Aytaç
- Department of Pediatric Hematology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yahya Büyükaşık
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Kaan Boztug
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
| | - İlhan Tezcan
- Department of Pediatric Immunology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Deniz Cagdas
- Department of Pediatric Immunology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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16
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Shinar Y, Ceccherini I, Rowczenio D, Aksentijevich I, Arostegui J, Ben-Chétrit E, Boursier G, Gattorno M, Hayrapetyan H, Ida H, Kanazawa N, Lachmann HJ, Mensa-Vilaro A, Nishikomori R, Oberkanins C, Obici L, Ohara O, Ozen S, Sarkisian T, Sheils K, Wolstenholme N, Zonneveld-Huijssoon E, van Gijn ME, Touitou I. ISSAID/EMQN Best Practice Guidelines for the Genetic Diagnosis of Monogenic Autoinflammatory Diseases in the Next-Generation Sequencing Era. Clin Chem 2020; 66:525-536. [PMID: 32176780 DOI: 10.1093/clinchem/hvaa024] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/08/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Monogenic autoinflammatory diseases are caused by pathogenic variants in genes that regulate innate immune responses, and are characterized by sterile systemic inflammatory episodes. Since symptoms can overlap within this rapidly expanding disease category, accurate genetic diagnosis is of the utmost importance to initiate early inflammation-targeted treatment and prevent clinically significant or life-threatening complications. Initial recommendations for the genetic diagnosis of autoinflammatory diseases were limited to a gene-by-gene diagnosis strategy based on the Sanger method, and restricted to the 4 prototypic recurrent fevers (MEFV, MVK, TNFRSF1A, and NLRP3 genes). The development of best practices guidelines integrating critical recent discoveries has become essential. METHODS The preparatory steps included 2 online surveys and pathogenicity annotation of newly recommended genes. The current guidelines were drafted by European Molecular Genetics Quality Network members, then discussed by a panel of experts of the International Society for Systemic Autoinflammatory Diseases during a consensus meeting. RESULTS In these guidelines, we combine the diagnostic strength of next-generation sequencing and recommendations to 4 more recently identified genes (ADA2, NOD2, PSTPIP1, and TNFAIP3), nonclassical pathogenic genetic alterations, and atypical phenotypes. We present a referral-based decision tree for test scope and method (Sanger versus next-generation sequencing) and recommend on complementary explorations for mosaicism, copy-number variants, and gene dose. A genotype table based on the 5-category variant pathogenicity classification provides the clinical significance of prototypic genotypes per gene and disease. CONCLUSIONS These guidelines will orient and assist geneticists and health practitioners in providing up-to-date and appropriate diagnosis to their patients.
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Affiliation(s)
- Yael Shinar
- Laboratory of FMF, Amyloidosis and Rare Autoinflammatory Diseases, Heller Institute, Sheba Medical Center, Tel Hashomer, Israel
| | | | | | | | - Juan Arostegui
- Department of Immunology, Hospital Clínic, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Eldad Ben-Chétrit
- Rheumatology Unit, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Guilaine Boursier
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Reference Center CEREMAIA, CHU Montpellier, University of Montpellier, Montpellier, France
| | - Marco Gattorno
- Center for Autoinflammatory Diseases and Immunodeficiency, IRCCS Giannina Gaslini, Genova
| | | | - Hiroaki Ida
- Department of Medicine, Division of Respirology, Neurology and Rheumatology, Kurume University School of Medicine, Kurume, Japan
| | - Nobuo Kanazawa
- Department of Dermatology, Wakayama Medical University, Wakayama, Japan
| | | | | | - Ryuta Nishikomori
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | | | - Laura Obici
- Amyloidosis Research and Treatment Centre, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Seza Ozen
- Department of Pediatrics, Hacettepe University, Ankara, Turkey
| | - Tamara Sarkisian
- Center of Medical Genetics and Primary Health Care, Yerevan, Armenia
| | - Katie Sheils
- European Molecular Genetics Quality Network (EMQN), Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester, UK
| | - Nicola Wolstenholme
- European Molecular Genetics Quality Network (EMQN), Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester, UK
| | - Evelien Zonneveld-Huijssoon
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marielle E van Gijn
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Isabelle Touitou
- Department of Medical Genetics, Rare Diseases and Personalized Medicine, Reference Center CEREMAIA, CHU Montpellier, University of Montpellier, Montpellier, France.,Stem Cells, Cellular Plasticity, Regenerative Medicine and Immunotherapies, INSERM, Montpellier, France
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17
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Kendall JL, Springer JM. The Many Faces of a Monogenic Autoinflammatory Disease: Adenosine Deaminase 2 Deficiency. Curr Rheumatol Rep 2020; 22:64. [PMID: 32845415 PMCID: PMC7448703 DOI: 10.1007/s11926-020-00944-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW We aim to describe the pathophysiology, clinical findings, diagnosis, and treatment of deficiency of adenosine deaminase 2 (DADA2). RECENT FINDINGS DADA2 is a multi-organ disease of children and less often adults, which can present with wide-ranging manifestations including strokes, medium vessel vasculitis, hematologic disease, and immunodeficiency. Diagnosis is through detection of reduced activity level of the adenosine deaminase 2 (ADA2) enzyme and/or identification of bi-allelic mutations in the ADA2 gene. Outside of high-dose glucocorticoids, conventional immunosuppression has been largely ineffective in treating this relapsing and remitting disease. Vasculitic-predominant manifestations respond extremely well to tumor necrosis factor-α inhibition. Hematopoietic stem cell transplantation can lead to normalization of enzyme activity, as well as resolution of vasculitic, hematologic, and immunologic manifestations, although treatment-related adverse effects are not uncommon. Early detection of this disease across multiple disciplines could prevent devastating clinical outcomes, especially in genetically pre-disposed populations.
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Affiliation(s)
- Jennifer Lee Kendall
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine University of Kansas Medical Center, 3901 Rainbow Blvd MS 2026, Kansas City, KS, 66160, USA
| | - Jason Michael Springer
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine University of Kansas Medical Center, 3901 Rainbow Blvd MS 2026, Kansas City, KS, 66160, USA.
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Huang Z, Li T, Nigrovic PA, Lee PY. Polyarteritis nodosa and deficiency of adenosine deaminase 2 - Shared genealogy, generations apart. Clin Immunol 2020; 215:108411. [PMID: 32276138 PMCID: PMC7387119 DOI: 10.1016/j.clim.2020.108411] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/27/2019] [Accepted: 04/05/2020] [Indexed: 12/24/2022]
Abstract
Polyarteritis nodosa (PAN) is a systemic necrotizing vasculitis that predominantly affects medium-sized arteries. With the establishment and refinement of vasculitis nomenclature and diagnostic criteria, clinical findings of PAN and distinguishing features from other vasculitides are now well characterized. Although PAN typically manifests in adulthood, cohort studies in paediatric patients have shaped our understanding of childhood-onset PAN. The paradigm of childhood-onset PAN changed considerably with the landmark discovery of deficiency of ADA2 (DADA2), a monogenic cause of vasculitis that is often indistinguishable from PAN. Testing for DADA2 has provided an explanation to numerous challenging cases of familial PAN and early-onset PAN around the world. The ability to distinguish DADA2 from classic PAN have important therapeutic implications as tumor necrosis factor inhibitors have demonstrated remarkable efficacy in the treatment of DADA2. In this review, we will discuss our current understanding of PAN and DADA2 and highlight similarities and differences between these vasculitides.
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Affiliation(s)
- Zhengping Huang
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China; Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Tianwang Li
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Peter A Nigrovic
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Pui Y Lee
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
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Schnappauf O, Aksentijevich I. Current and future advances in genetic testing in systemic autoinflammatory diseases. Rheumatology (Oxford) 2020; 58:vi44-vi55. [PMID: 31769854 PMCID: PMC6878845 DOI: 10.1093/rheumatology/kez294] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/22/2019] [Indexed: 12/31/2022] Open
Abstract
Systemic autoinflammatory diseases (SAIDs) are a group of inflammatory disorders caused by dysregulation in the innate immune system that leads to enhanced immune responses. The clinical diagnosis of SAIDs can be difficult since individually these are rare diseases with considerable phenotypic overlap. Most SAIDs have a strong genetic background, but environmental and epigenetic influences can modulate the clinical phenotype. Molecular diagnosis has become essential for confirmation of clinical diagnosis. To date there are over 30 genes and a variety of modes of inheritance that have been associated with monogenic SAIDs. Mutations in the same gene can lead to very distinct phenotypes and can have different inheritance patterns. In addition, somatic mutations have been reported in several of these conditions. New genetic testing methods and databases are being developed to facilitate the molecular diagnosis of SAIDs, which is of major importance for treatment, prognosis and genetic counselling. The aim of this review is to summarize the latest advances in genetic testing for SAIDs and discuss potential obstacles that might arise during the molecular diagnosis of SAIDs.
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Affiliation(s)
- Oskar Schnappauf
- Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ivona Aksentijevich
- Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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Sahin S, Adrovic A, Barut K, Baran S, Tahir Turanli E, Canpolat N, Kizilkilic O, Ozkaya O, Kasapcopur O. A 9.5-year-old boy with recurrent neurological manifestations and severe hypertension, treated initially for polyarteritis nodosa, was subsequently diagnosed with adenosine deaminase type 2 deficiency (DADA2) which responded to anti-TNF-α. Paediatr Int Child Health 2020; 40:65-68. [PMID: 30642227 DOI: 10.1080/20469047.2018.1559495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A 9.5-year-old boy was referred with a 2-year history of recurrent fever, myalgia, abdominal pain and various neurological manifestations associated with increased acute phase reactants and IgG level. During the recent episode, severe hypertension and right-sided hemiparesis developed and angiography demonstrated irregularities and stenosis in renal and mesenteric artery branches. Although these manifestations were consistent with polyarteritis nodosa (PAN), the consanguinity of his parents, a cousin with similar clinical features and early disease onset led to suspicion of deficiency of adenosine deaminase type 2 (DADA2) diseases. DADA2 was established by demonstration of decreased ADA2 enzyme activity and a homozygous G47R mutation in the CECR1 gene. The diagnosis of DADA2 is challenging because of the overlapping manifestations with PAN and other periodic fever syndromes. DADA2 should be considered in the differential diagnosis of PAN. Raised IgG levels (usually low in DADA2) should be sought in future cases.Abbreviations: CECR1, cat eye syndrome chromosome region candidate 1; DADA2, deficiency of adenosine deaminase type 2; MEFV, Mediterranean fever; PAN, polyarteritis nodosa.
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Affiliation(s)
- Sezgin Sahin
- Department of Paediatric Rheumatology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Amra Adrovic
- Department of Paediatric Rheumatology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Kenan Barut
- Department of Paediatric Rheumatology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Selen Baran
- Department of Paediatric Rheumatology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Eda Tahir Turanli
- Department of Molecular Biology and Genetics, Faculty of Science and Letters, Istanbul Technical University, Istanbul, Turkey
| | - Nur Canpolat
- Department of Paediatric Nephrology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Osman Kizilkilic
- Division of Neuroradiology, Department of Radiology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Ozan Ozkaya
- Department of Paediatrics, Okmeydanı Research Hospital, Istanbul, Turkey
| | - Ozgur Kasapcopur
- Department of Paediatric Rheumatology, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
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Moens L, Hershfield M, Arts K, Aksentijevich I, Meyts I. Human adenosine deaminase 2 deficiency: A multi-faceted inborn error of immunity. Immunol Rev 2019; 287:62-72. [PMID: 30565235 DOI: 10.1111/imr.12722] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 09/23/2018] [Indexed: 12/15/2022]
Abstract
Human adenosine deaminase 1 deficiency was described in the 1970s to cause severe combined immunodeficiency. The residual adenosine deaminase activity in these patients was attributed to adenosine deaminase 2. Human adenosine deaminase type 2 deficiency (DADA2), due to biallelic deleterious mutations in the ADA2 gene, is the first described monogenic type of small- and medium-size vessel vasculitis. The phenotype of DADA2 also includes lymphoproliferation, cytopenia, and variable degrees of immunodeficiency. The physiological role of ADA2 is still enigmatic hence the pathophysiology of the condition is unclear. Preliminary data showed that in the absence of ADA2, macrophage differentiation is skewed to a pro-inflammatory M1 subset, which is detrimental for endothelial integrity. The inflammatory phenotype responds well to anti-TNF therapy with etanercept and that is the first-line treatment for prevention of severe vascular events including strokes. The classic immunosuppressive drugs are not successful in controlling the disease activity. However, hematopoietic stem cell transplantation (HSCT) has been shown to be a definitive cure in DADA2 patients who present with a severe cytopenia. HSCT can also cure the vascular phenotype and is the treatment modality for patients' refractory to anti-cytokine therapies. In this review, we describe what is currently known about the molecular mechanisms of DADA2. Further research on the pathophysiology of this multifaceted condition is needed to fine-tune and steer future therapeutic strategies.
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Affiliation(s)
- Leen Moens
- Department of Microbiology and Immunology, Laboratory for Childhood Immunology, KU Leuven, Leuven, Belgium
| | - Michael Hershfield
- Department of Medicine, School of Medicine, Duke University, Durham, North Carolina
| | - Katrijn Arts
- Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, Bethesda, Maryland
| | - Isabelle Meyts
- Department of Microbiology and Immunology, Laboratory for Childhood Immunology, KU Leuven, Leuven, Belgium.,Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
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Gibson KM, Morishita KA, Dancey P, Moorehead P, Drögemöller B, Han X, Graham J, Hancock REW, Foell D, Benseler S, Luqmani R, Yeung RSM, Shenoi S, Bohm M, Rosenberg AM, Ross CJ, Cabral DA, Brown KL. Identification of Novel Adenosine Deaminase 2 Gene Variants and Varied Clinical Phenotype in Pediatric Vasculitis. Arthritis Rheumatol 2019; 71:1747-1755. [PMID: 31008556 DOI: 10.1002/art.40913] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 04/16/2019] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Individuals with deficiency of adenosine deaminase 2 (DADA2), a recently recognized autosomal recessive disease, present with various systemic vascular and inflammatory manifestations, often with young age at disease onset or with early onset of recurrent strokes. Their clinical features and histologic findings overlap with those of childhood-onset polyarteritis nodosa (PAN), a primary "idiopathic" systemic vasculitis. Despite similar clinical presentation, individuals with DADA2 may respond better to biologic therapy than to traditional immunosuppression. The aim of this study was to screen an international registry of children with systemic primary vasculitis for variants in ADA2. METHODS The coding exons of ADA2 were sequenced in 60 children and adolescents with a diagnosis of PAN, cutaneous PAN, or unclassifiable vasculitis (UCV), any chronic vasculitis with onset at age 5 years or younger, or history of stroke. The functional consequences of the identified variants were assessed by ADA2 enzyme assay and immunoblotting. RESULTS Nine children with DADA2 (5 with PAN, 3 with UCV, and 1 with antineutrophil cytoplasmic antibody-associated vasculitis) were identified. Among them, 1 patient had no rare variants in the coding region of ADA2 and 8 had biallelic, rare variants (minor allele frequency <0.01) with a known association with DADA2 (p.Gly47Arg and p.Gly47Ala) or a novel association (p.Arg9Trp, p.Leu351Gln, and p.Ala357Thr). The clinical phenotype varied widely. CONCLUSION These findings support previous observations indicating that DADA2 has extensive genotypic and phenotypic variability. Thus, screening ADA2 among children with vasculitic rash, UCV, PAN, or unexplained, early-onset central nervous system disease with systemic inflammation may enable an earlier diagnosis of DADA2.
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Affiliation(s)
- Kristen M Gibson
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Kimberly A Morishita
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Paul Dancey
- Janeway Children's Hospital and Rehabilitation Centre, Saint John's, Newfoundland and Labrador, Canada
| | - Paul Moorehead
- Janeway Children's Hospital and Rehabilitation Centre, Saint John's, Newfoundland and Labrador, Canada
| | - Britt Drögemöller
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Xiaohua Han
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Jinko Graham
- Simon Fraser University, Burnaby, British Columbia, Canada
| | | | - Dirk Foell
- University Hospital Muenster, Muenster, Germany
| | | | | | - Rae S M Yeung
- Hospital for Sick Children, Toronto, Ontario, Canada
| | - Susan Shenoi
- Seattle Children's Hospital, Seattle, Washington
| | - Marek Bohm
- Leeds General Infirmary, Leeds Teaching Hospitals Trust, Leeds, UK
| | - Alan M Rosenberg
- Royal University Hospital and University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Colin J Ross
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - David A Cabral
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Kelly L Brown
- University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada
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Deficiency of adenosine deaminase 2; special focus on central nervous system imaging. J Neuroradiol 2019; 46:193-198. [DOI: 10.1016/j.neurad.2018.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 05/01/2018] [Accepted: 05/25/2018] [Indexed: 12/13/2022]
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Ginsberg S, Rosner I, Slobodin G, Rozenbaum M, Kaly L, Jiries N, Boulman N, Awisat A, Hussein H, Novofastovski I, Silawy A, Rimar D. Infliximab for the treatment of refractory polyarteritis nodosa. Clin Rheumatol 2019; 38:2825-2833. [PMID: 30972576 DOI: 10.1007/s10067-019-04474-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/29/2019] [Accepted: 02/07/2019] [Indexed: 01/22/2023]
Abstract
Polyarteritis nodosa (PAN) is a necrotizing vasculitis predominantly affecting medium and small size arteries. Cyclophosphamide, a drug with narrow therapeutic range and poor safety profile, constitutes the treatment of choice for PAN vasculitis with major organ involvement. To describe our clinical experience in treating refractory PAN with infliximab (a TNF inhibitor), a drug with good tolerability and better safety profile than cyclophosphamide. Twenty-six PAN patients were admitted to our rheumatology unit between 2006 and 2017, of whom nine patients, with severe and refractory disease, were treated with infliximab after failure of standard treatment. We describe herein the patients' characteristics, clinical manifestations, severity and response to infliximab treatment and review the current literature. Complete remission was defined as the absence of features of active disease and withdrawal of prednisone therapy. Significant improvement was defined as clinical improvement and prednisone dose reduction of at least 50% or a 50% reduction in immune modulatory medications other than prednisone. After 4 months of treatment, 8/9 (89%) patients achieved significant improvement, with two of them achieving complete remission. We suggest that anti-TNF agents, and in particular infliximab, are relatively safe and efficacious treatment options in refractory PAN. A randomized controlled trial should be done in order to objectively evaluate infliximab in PAN.
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Affiliation(s)
- Shira Ginsberg
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel.
- Internal Medicine B Department, Bnai Zion Medical Center, 47 Eliyahu Golomb Street, 33048, Haifa, Israel.
| | - Itzhak Rosner
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - Gleb Slobodin
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | | | - Lisa Kaly
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - Nizar Jiries
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
- Internal Medicine B Department, Bnai Zion Medical Center, 47 Eliyahu Golomb Street, 33048, Haifa, Israel
| | - Nina Boulman
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - Abid Awisat
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - Haya Hussein
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | | | - Amal Silawy
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
| | - Doron Rimar
- Rheumatology Unit, Bnai-Zion Medical Center, Haifa, Israel
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Beck DB, Aksentijevich I. Biochemistry of Autoinflammatory Diseases: Catalyzing Monogenic Disease. Front Immunol 2019; 10:101. [PMID: 30766537 PMCID: PMC6365650 DOI: 10.3389/fimmu.2019.00101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 01/14/2019] [Indexed: 12/20/2022] Open
Abstract
Monogenic autoinflammatory disorders are a group of conditions defined by systemic or localized inflammation without identifiable causes, such as infection. In contrast to classical primary immunodeficiencies that manifest with impaired immune responses, these disorders are due to defects in genes that regulate innate immunity leading to constitutive activation of pro-inflammatory signaling. Through studying patients with rare autoinflammatory conditions, novel mechanisms of inflammation have been identified that bare on our understanding not only of basic signaling in inflammatory cells, but also of the pathogenesis of more common inflammatory diseases and have guided treatment modalities. Autoinflammation has further been implicated as an important component of cardiovascular, neurodegenerative, and metabolic syndromes. In this review, we will focus on a subset of inherited enzymatic deficiencies that lead to constitutive inflammation, and how these rare diseases have provided insights into diverse areas of cell biology not restricted to immune cells. In this way, Mendelian disorders of the innate immune system, and in particular loss of catalytic activity of enzymes in distinct pathways, have expanded our understanding of the interplay between many seemingly disparate cellular processes. We also explore the overlap between autoinflammation, autoimmunity, and immunodeficiency, which has been increasingly recognized in patients with dysregulated immune responses.
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Affiliation(s)
- David B Beck
- Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States
| | - Ivona Aksentijevich
- Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States
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Georgin-Lavialle S, Fayand A, Rodrigues F, Bachmeyer C, Savey L, Grateau G. Autoinflammatory diseases: State of the art. Presse Med 2019; 48:e25-e48. [PMID: 30686513 DOI: 10.1016/j.lpm.2018.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Autoinflammatory diseases are characterized by innate immunity abnormalities. In autoinflammatory diseases (AID), inflammatory blood biomarkers are elevated during crisis without infection and usually without autoantibodies. The first 4 described AID were familial Mediterranean fever, cryopyrin-associated periodic fever syndrome (CAPS) or NLRP3-associated autoinflammatory disease (NRLP3-AID), mevalonate kinase deficiency (MKD) and TNFRSF1A-receptor associated periodic fever syndrome (TRAPS). Since their description 20 years ago, and with the progresses of genetic analysis, many new diseases have been discovered; some with recurrent fever, others with predominant cutaneous symptoms or even immune deficiency. After describing the 4 historical recurrent fevers, some polygenic inflammatory diseases will also be shortly described such as Still disease and periodic fever with adenitis, pharyngitis and aphtous (PFAPA) syndrome. To better explore AID, some key anamnesis features are crucial such as the family tree, the age at onset, crisis length and organs involved in the clinical symptoms. An acute phase response is mandatory in crisis.
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Affiliation(s)
- Sophie Georgin-Lavialle
- AP-HP, hôpital Tenon, Sorbonne université, service de médecine interne, centre de référence des maladies auto-inflammatoires et des amyloses d'origine inflammatoire (CEREMAIA), 75020 Paris, France; Assistance publique-Hôpitaux de Paris, hôpital Trousseau, université Pierre-et-Marie-Curie (UPMC)-Paris 6, Inserm UMRS_933, 75012 Paris, France.
| | - Antoine Fayand
- AP-HP, hôpital Tenon, Sorbonne université, service de médecine interne, centre de référence des maladies auto-inflammatoires et des amyloses d'origine inflammatoire (CEREMAIA), 75020 Paris, France
| | - 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), 75020 Paris, France
| | - Claude Bachmeyer
- AP-HP, hôpital Tenon, Sorbonne université, service de médecine interne, centre de référence des maladies auto-inflammatoires et des amyloses d'origine inflammatoire (CEREMAIA), 75020 Paris, France
| | - Léa Savey
- AP-HP, hôpital Tenon, Sorbonne université, service de médecine interne, centre de référence des maladies auto-inflammatoires et des amyloses d'origine inflammatoire (CEREMAIA), 75020 Paris, France
| | - Gilles Grateau
- AP-HP, hôpital Tenon, Sorbonne université, service de médecine interne, centre de référence des maladies auto-inflammatoires et des amyloses d'origine inflammatoire (CEREMAIA), 75020 Paris, France; Assistance publique-Hôpitaux de Paris, hôpital Trousseau, université Pierre-et-Marie-Curie (UPMC)-Paris 6, Inserm UMRS_933, 75012 Paris, France
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Insalaco A, Moneta GM, Pardeo M, Caiello I, Messia V, Bracaglia C, Passarelli C, De Benedetti F. Variable Clinical Phenotypes and Relation of Interferon Signature with Disease Activity in ADA2 Deficiency. J Rheumatol 2019; 46:523-526. [DOI: 10.3899/jrheum.180045] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2018] [Indexed: 12/16/2022]
Abstract
Objective.An upregulation of type I interferon (IFN) stimulated genes [IFN score (IS)] was described in patients with adenosine deaminase 2 deficiency (DADA2). We describe the clinical course of 5 such patients and the role of IS as a marker of disease activity and severity.Methods.Expression levels of IS were determined by quantitative real-time PCR.Results.Five white patients were identified as carrying CECR1 mutations. The IS before treatment was elevated in 4 out of 5 patients and decreased after treatment.Conclusion.Our data confirm the high variability of DADA2 and suggest type I IS as a biomarker of disease activity.
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28
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Claassen D, Boals M, Bowling KM, Cooper GM, Cox J, Hershfield M, Lewis S, Wlodarski M, Weiss MJ, Estepp JH. Complexities of genetic diagnosis illustrated by an atypical case of congenital hypoplastic anemia. Cold Spring Harb Mol Case Stud 2018; 4:mcs.a003384. [PMID: 30559313 PMCID: PMC6318771 DOI: 10.1101/mcs.a003384] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/29/2018] [Indexed: 11/24/2022] Open
Abstract
Diamond-Blackfan Anemia (DBA) is a rare polygenic disorder defined by congenital hypoplastic anemia with marked decrease or absence of bone marrow erythroid precursors. Identifying the specific genetic etiology is important for counseling and clinical management. A 6-yr-old boy with a clinical diagnosis of DBA has been followed by our pediatric hematology team since birth. His clinical course includes transfusion-dependent hypoplastic anemia and progressive autoimmune cytopenias. Genetic testing failed to identify a causative mutation in any of the classical DBA-associated genes. He and his parents underwent trio whole-exome sequencing (WES) with no genetic etiology identified initially. Clinical persistence and suspicion led to testing for adenosine deaminase 2 (ADA2) activity and whole-genome sequencing (WGS) that identified compound heterozygous pathogenic mutations in the ADA2-encoding CECR1 gene, a recently appreciated etiology for congenital hypoplastic anemia. This case illustrates current challenges in genetic testing and how they can be overcome by multidisciplinary expertise in clinical medicine and genomics.
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Affiliation(s)
- David Claassen
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Michelle Boals
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Kevin M Bowling
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA
| | - Gregory M Cooper
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama 35806, USA
| | - Jennifer Cox
- St. Jude Affiliate Clinic, Huntsville Hospital for Women and Children, Huntsville, Alabama 35801, USA
| | - Michael Hershfield
- Department of Medicine and Biochemistry, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Sara Lewis
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Marcin Wlodarski
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Mitchell J Weiss
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Jeremie H Estepp
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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Abstract
PURPOSE OF REVIEW Advances in sequencing techniques and systematic cohort-analysis of patients with autoinflammatory phenotypes have enabled a burst in the recognition of new autoinflammatory diseases and contributed to the description of the mechanisms involved in autoinflammation. This review focuses on new genetic and mechanistic discoveries that have broadened the definition of autoinflammatory diseases in the context of the established landscape, providing new therapeutic opportunities and avenues for further discoveries. RECENT FINDINGS Mechanistic insights of inflammatory diseases open opportunities for new targeted therapies. Advances in high-throughput screening of small-molecule inhibitors accelerate the discovery of new and more specific therapeutic options. Recent evidence establishes IL-18 as a driver of macrophage activation, emerging as a new biomarker and therapeutic target. Finally, the identification of escape of nonsense-mediated decay as the genetic mechanism resulting in a monogenic immune-dysregulatory disease, unveils a possibility for future discoveries. SUMMARY Recent mechanistic findings in autoinflammatory diseases as well as the identification of specific biomarkers and discovery of new diseases, continue to pave the way for ever more specific targeted approaches. These therapies are not only applicable to monogenic autoinflammatory syndromes but also for other diseases in which the same pathways are dysregulated.
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30
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Warts and DADA2: a Mere Coincidence? J Clin Immunol 2018; 38:836-843. [DOI: 10.1007/s10875-018-0565-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 10/22/2018] [Indexed: 12/12/2022]
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Zhu C, Mustafa DAM, Krebber MM, Chrifi I, Leenen PJM, Duncker DJ, Dekker L, Luider TM, Kros JM, Cheng C. Comparative proteomic analysis of cat eye syndrome critical region protein 1- function in tumor-associated macrophages and immune response regulation of glial tumors. Oncotarget 2018; 9:33500-33514. [PMID: 30323894 PMCID: PMC6173361 DOI: 10.18632/oncotarget.26063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 08/04/2018] [Indexed: 01/08/2023] Open
Abstract
Introduction Tumor associated macrophages (TAMs) promote tumor development, angiogenesis and distal metastasis. In previous studies, we showed that Cat Eye Syndrome Critical Region Protein 1 (CECR1) is expressed by M2-like TAMs in human glioma samples. CECR1 promoted M2 TAMs differentiation and affected glioma cell proliferation and migration. Here we investigated the proteomic profile of TAMs expressing CECR1 in absence or presence of glioma cells. Results CECR1 siRNA transfection upregulated 67 proteins in THP-1-derived Macrophages (MQs). Pathway annotation mapped this set to 3 major pathways relevant for MQ function, including 'MHC-I antigen presentation', 'phagosome maturation' and 'endocytosis'. Co-culture of siCECR1 THP-1-derived MQs with U87 glioma cells attenuated the changes observed on protein and mRNA level in response to MQ CECR1 silencing. SiCECR1 in U87 co-cultured MQs was associated with an IL-10low, IL-12high M1-like phenotype. In U87 co-culture conditions, SiCECR1 also downregulated S20 proteasome complex proteins PSMA5, PSMA7, PSMC6 and PSMD8. This protein profile was linked to a low proliferation rate of siCECR1 MQs. Overlap analysis identified S100A9 and PLAU as CECR1-related proteins that were significantly correlated with expression of CECR1 and macrophage lineage markers in three large public GBM datasets. Conclusion This study reports the molecular pathways and key molecules that are mediated by CECR1 function in THP- 1-derived MQs and TAMs in glioma. Methods PMA-treated THP-1 cells (MQs) were siRNA transfected for CECR1 in vitro, with or without stimulation of the primary glioma cell line U87. Lysates were analyzed by (nano)LC-MS. Significant altered protein levels were identified (P < 0.05), followed by pathway annotation.
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Affiliation(s)
- Changbin Zhu
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands.,Department of Paediatric Neurosurgery, Shanghai Xin Hua Hospital/Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Dana A M Mustafa
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Merle M Krebber
- Department of Nephrology and Hypertension, DIGD, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ihsan Chrifi
- Division of Experimental Cardiology, Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Pieter J M Leenen
- Department of Immunology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Dirk J Duncker
- Division of Experimental Cardiology, Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Lennard Dekker
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Theo M Luider
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Johan M Kros
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Caroline Cheng
- Division of Experimental Cardiology, Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands.,Department of Nephrology and Hypertension, DIGD, University Medical Center Utrecht, Utrecht, The Netherlands
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Van Nieuwenhove E, Humblet-Baron S, Van Eyck L, De Somer L, Dooley J, Tousseyn T, Hershfield M, Liston A, Wouters C. ADA2 Deficiency Mimicking Idiopathic Multicentric Castleman Disease. Pediatrics 2018; 142:peds.2017-2266. [PMID: 30139808 DOI: 10.1542/peds.2017-2266] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/15/2018] [Indexed: 11/24/2022] Open
Abstract
Multicentric Castleman disease (MCD) is a rare entity that, unlike unicentric Castleman disease, involves generalized polyclonal lymphoproliferation, systemic inflammation, and multiple-organ system failure resulting from proinflammatory hypercytokinemia, including, in particular, interleukin-6. A subset of MCD is caused by human herpesvirus-8 (HHV-8), although the etiology for HHV-8-negative, idiopathic MCD (iMCD) cases is unknown at present. Recently, a consensus was reached on the diagnostic criteria for iMCD to aid in diagnosis, recognize mimics, and initiate prompt treatment. Pediatric iMCD remains particularly rare, and differentiation from MCD mimics in children presenting with systemic inflammation and lymphoproliferation is a challenge. We report on a young boy who presented with a HHV-8-negative, iMCD-like phenotype and was found to suffer from the monogenic disorder deficiency of adenosine deaminase 2 (DADA2), which is caused by loss-of-function mutations in CECR1 DADA2 prototypic features include early-onset ischemic and hemorrhagic strokes, livedoid rash, systemic inflammation, and polyarteritis nodosa vasculopathy, but marked clinical heterogeneity has been observed. Our patient's presentation remains unique, with predominant systemic inflammation, lymphoproliferation, and polyclonal hypergammaglobulinemia but without apparent immunodeficiency. On the basis of the iMCD-like phenotype with elevated interleukin-6 expression, treatment with tocilizumab was initiated, resulting in immediate normalization of clinical and biochemical parameters. In conclusion, iMCD and DADA2 should be considered in the differential diagnosis of children presenting with systemic inflammation and lymphoproliferation. We describe the first case of DADA2 that mimics the clinicopathologic features of iMCD, and our report extends the clinical spectrum of DADA2 to include predominant immune activation and lymphoproliferation.
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Affiliation(s)
- Erika Van Nieuwenhove
- Departments of Microbiology and Immunology and.,VIB and KU Leuven Center for Brain and Disease Research, Leuven, Belgium.,University Hospitals Leuven, Leuven, Belgium; and
| | - Stephanie Humblet-Baron
- Departments of Microbiology and Immunology and.,VIB and KU Leuven Center for Brain and Disease Research, Leuven, Belgium
| | | | - Lien De Somer
- Departments of Microbiology and Immunology and.,University Hospitals Leuven, Leuven, Belgium; and
| | - James Dooley
- Departments of Microbiology and Immunology and.,VIB and KU Leuven Center for Brain and Disease Research, Leuven, Belgium
| | - Thomas Tousseyn
- Imaging and Pathology, Translational Cell and Tissue Research, Katholieke Universiteit Leuven, Leuven, Belgium.,Department of Pathology
| | - Michael Hershfield
- Department of Medicine, School of Medicine, Duke University, Durham, North Carolina
| | - Adrian Liston
- Departments of Microbiology and Immunology and .,VIB and KU Leuven Center for Brain and Disease Research, Leuven, Belgium
| | - Carine Wouters
- Departments of Microbiology and Immunology and.,University Hospitals Leuven, Leuven, Belgium; and
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Meyts I, Aksentijevich I. Deficiency of Adenosine Deaminase 2 (DADA2): Updates on the Phenotype, Genetics, Pathogenesis, and Treatment. J Clin Immunol 2018; 38:569-578. [PMID: 29951947 PMCID: PMC6061100 DOI: 10.1007/s10875-018-0525-8] [Citation(s) in RCA: 231] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 06/19/2018] [Indexed: 12/13/2022]
Abstract
Deficiency of ADA2 (DADA2) is the first molecularly described monogenic vasculitis syndrome. DADA2 is caused by biallelic hypomorphic mutations in the ADA2 gene that encodes the adenosine deaminase 2 (ADA2) protein. Over 60 disease-associated mutations have been identified in all domains of ADA2 affecting the catalytic activity, protein dimerization, and secretion. Vasculopathy ranging from livedo reticularis to polyarteritis nodosa (PAN) and life-threatening ischemic and/or hemorrhagic stroke dominate the clinical features of DADA2. Vasculitis and inflammation can affect many organs, explaining the intestinal, hepatological, and renal manifestations. DADA2 should be primarily considered in patients with early-onset fevers, rashes, and strokes even in the absence of positive family history. Hematological manifestations include most commonly hypogammaglobulinemia, although pure red cell aplasia (PRCA), immune thrombocytopenia, and neutropenia have been increasingly reported. Thus, DADA2 may unify a variety of syndromes previously not thought to be related. The first-line treatment consists of TNF-inhibitors and is effective in controlling inflammation and in preserving vascular integrity. Hematopoietic stem cell transplantation (HSCT) has been successful in a group of patients presenting with hematological manifestations. ADA2 is highly expressed in myeloid cells and plays a role in the differentiation of macrophages; however, its function is still largely undetermined. Deficiency of ADA2 has been linked to an imbalance in differentiation of monocytes towards proinflammatory M1 macrophages. Future research on the function of ADA2 and on the pathophysiology of DADA2 will improve our understanding of the condition and promote early diagnosis and targeted treatment.
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Affiliation(s)
- Isabelle Meyts
- Department of Pediatrics, Department of Microbiology and Immunology, University Hospitals Leuven, Leuven, Belgium.
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, Bethesda, USA.
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A decision tree for the genetic diagnosis of deficiency of adenosine deaminase 2 (DADA2): a French reference centres experience. Eur J Hum Genet 2018; 26:960-971. [PMID: 29681619 DOI: 10.1038/s41431-018-0130-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 02/23/2018] [Accepted: 02/27/2018] [Indexed: 01/15/2023] Open
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is a recently described autoinflammatory disorder. Genetic analysis is required to confirm the diagnosis. We aimed to describe the identifying symptoms and genotypes of patients referred to our reference centres and to improve the indications for genetic testing. DNA from 66 patients with clinically suspected DADA2 were sequenced by Sanger or next-generation sequencing. Detailed epidemiological, clinical and biological features were collected by use of a questionnaire and were compared between patients with and without genetic confirmation of DADA2. We identified 13 patients (19.6%) carrying recessively inherited mutations in ADA2 that were predicted to be deleterious. Eight patients were compound heterozygous for mutations. Seven mutations were novel (4 missense variants, 2 predicted to affect mRNA splicing and 1 frameshift). The mean age of the 13 patients with genetic confirmation was 12.7 years at disease onset and 20.8 years at diagnosis. Phenotypic manifestations included fever (85%), vasculitis (85%) and neurological disorders (54%). Features best associated with a confirmatory genotype included fever with neurologic or cutaneous attacks (odds ratio [OR] 10.71, p = 0.003 and OR 10.9, p < 0.001), fever alone (OR 8.1, p = 0.01), and elevated C-reactive protein (CRP) level with neurologic involvement (OR 6.63, p = 0.017). Our proposed decision tree may help improve obtaining genetic confirmation of DADA2 in the context of autoinflammatory symptoms. Prerequisites for quick and low-cost Sanger analysis include one typical cutaneous or neurological sign, one marker of inflammation (fever or elevated CRP level), and recurrent or chronic attacks in adults.
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35
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Human A, Pagnoux C. Diagnosis and management of ADA2 deficient polyarteritis nodosa. Int J Rheum Dis 2018; 22 Suppl 1:69-77. [PMID: 29624883 DOI: 10.1111/1756-185x.13283] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Deficiency of ADA2 (DADA2) is a recently described systemic inflammatory vasculopathy caused by mutations in the CERC1 gene that often, but not always, clinically resembles polyarteritis nodosa (PAN). The condition was originally characterized by livedoid rash, systemic inflammation, variable hypogammaglobulinemia, and early-onset stroke. The phenotypic spectrum has expanded to include patients with immunodeficiency syndromes and bone marrow dysfunction, which are not typical features of PAN. Exploration into the pathogenesis and treatment options of DADA2 has added to our understanding of this condition, but more studies are needed. The purpose of this article is to review the various clinical phenotypes of DADA2, and raise awareness among rheumatologists to consider DADA2 when evaluating patients presenting with PAN-like disease.
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Affiliation(s)
- Andrea Human
- Division of Rheumatology, Department of Pediatrics, BC Children's Hospital, Vancouver, British Columbia, Canada
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36
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Alsultan A, Basher E, Alqanatish J, Mohammed R, Alfadhel M. Deficiency of ADA2 mimicking autoimmune lymphoproliferative syndrome in the absence of livedo reticularis and vasculitis. Pediatr Blood Cancer 2018; 65. [PMID: 29271561 DOI: 10.1002/pbc.26912] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/06/2017] [Accepted: 11/08/2017] [Indexed: 12/15/2022]
Abstract
Adenosine deaminase-2 (ADA2) deficiency (DADA2) is associated with early onset polyarteritis nodosa and vasculopathy. Classic presentation includes livedo reticularis, vasculitis, and stroke. However, the phenotype and disease severity are variable. We present a 5-year-old female who presented with features that mimicked autoimmune lymphoproliferative syndrome (ALPS) in the absence of classic features of DADA2. Exome sequencing identified a novel homozygous splicing variant in ADA2 c.882-2A > G. Patient responded to anti- tumor necrosis factor medication and is in complete remission. Hematologists should be aware of various hematological presentations of DADA2, including ALPS-like disorder, that might lack vasculitis and livedo reticularis to prevent delay in initiating optimal therapy.
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Affiliation(s)
- Abdulrahman Alsultan
- Department of Pediatrics, College of Medicine, King Saud University, Riyadh, Saudi Arabia.,Department of Pediatric Hematology/Oncology, King Abdullah Specialist Children's Hospital and King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Enas Basher
- Department of Pediatric Hematology/Oncology, King Abdullah Specialist Children's Hospital and King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Jubran Alqanatish
- Department of Pediatrics, King Abdullah Specialist Children's Hospital and King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Reem Mohammed
- Department of Pediatrics, King Abdullah Specialist Children's Hospital and King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Majid Alfadhel
- Department of Pediatrics, King Abdullah Specialist Children's Hospital and King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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37
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Michniacki TF, Hannibal M, Ross CW, Frame DG, DuVall AS, Khoriaty R, Vander Lugt MT, Walkovich KJ. Hematologic Manifestations of Deficiency of Adenosine Deaminase 2 (DADA2) and Response to Tumor Necrosis Factor Inhibition in DADA2-Associated Bone Marrow Failure. J Clin Immunol 2018; 38:166-173. [PMID: 29411230 DOI: 10.1007/s10875-018-0480-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/25/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Thomas F Michniacki
- Pediatrics and Communicable Diseases, Pediatric Hematology/Oncology, University of Michigan, 1500 E. Medical Center Drive, D4202 Medical Professional Building, Ann Arbor, MI, 48109, USA.
| | - Mark Hannibal
- Pediatrics - Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Charles W Ross
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - David G Frame
- Department of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Adam S DuVall
- Pediatric Hematology/Oncology, Oregon Health Sciences University, Portland, OR, USA
| | - Rami Khoriaty
- Department of Internal Medicine, Hematology/Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Mark T Vander Lugt
- Pediatrics and Communicable Diseases, Pediatric Hematology/Oncology, University of Michigan, 1500 E. Medical Center Drive, D4202 Medical Professional Building, Ann Arbor, MI, 48109, USA
| | - Kelly J Walkovich
- Pediatrics and Communicable Diseases, Pediatric Hematology/Oncology, University of Michigan, 1500 E. Medical Center Drive, D4202 Medical Professional Building, Ann Arbor, MI, 48109, USA
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38
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Lee PY. Vasculopathy, Immunodeficiency, and Bone Marrow Failure: The Intriguing Syndrome Caused by Deficiency of Adenosine Deaminase 2. Front Pediatr 2018; 6:282. [PMID: 30406060 PMCID: PMC6200955 DOI: 10.3389/fped.2018.00282] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 09/17/2018] [Indexed: 01/02/2023] Open
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is a monogenic form of systemic vasculopathy that often presents during early childhood. Linked to biallelic mutations in ADA2 (previously CECR1), DADA2 was initially described as a syndrome of recurrent fever, livedo racemosa, early-onset strokes, and peripheral vasculopathy that resembles polyarteritis nodosum. However, the wide spectrum of clinical findings and heterogeneity of disease, even among family members with identical mutations, is increasingly recognized. Evidence of systemic inflammation and vasculopathy is not uniformly present in DADA2 patients and some can remain asymptomatic through adulthood. Humoral immunodeficiency characterized by low immunoglobulin levels and increased risk of infection is another common feature of DADA2. Variable cytopenias including pure red cell aplasia that mimics Diamond-Blackfan anemia can also be primary manifestations of DADA2. How defects in a single gene translate into these heterogeneous presentations remains to be answered. In this review, we will summarize lessons learned from the pleiotropic clinical manifestations of DADA2.
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Affiliation(s)
- Pui Y Lee
- Division of Allergy, Immunology and Rheumatology, Boston Children's Hospital, Boston, MA, United States
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39
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Fayand A, Sarrabay G, Belot A, Hentgen V, Kone-Paut I, Grateau G, Melki I, Georgin-Lavialle S. [Multiple facets of ADA2 deficiency: Vasculitis, auto-inflammatory disease and immunodeficiency: A literature review of 135 cases from literature]. Rev Med Interne 2017; 39:297-306. [PMID: 29273180 DOI: 10.1016/j.revmed.2017.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/25/2017] [Indexed: 01/15/2023]
Abstract
Deficiency of adenosine deaminase 2 (DADA2) is a recently described auto-inflammatory disorder. It is an autosomal recessive inherited disease, caused by mutations in the ADA2 gene (formerly known as CECR1) encoding ADA2 enzyme. Besides its role in the purine metabolism, it has been postulated that ADA2 may act as a growth factor for endothelial cells and in the differenciation of monocytes. Thus, deficiency of ADA2 would lead to endothelial damage and a skewing of monocytes into M1 pro-inflammatory macrophage, causing DADA2 manifestations. Three core clinical features have been described: inflammatory-vascular signs, hematologic abnormalities and immunodeficiency. Clinically, patients display intermittent fever, cutaneous vascular manifestations, such as livedo, ischemic strokes, arthralgia and abdominal pain crisis. Corticosteroids and immunosuppressive agents (i.e. cyclophosphamide, azathioprine, ciclosporin, methotrexate) appear to be poorly effective. Although the mechanism has not been elucidated, anti-TNF agents have been proven efficient in DADA2 and should therefore be used as first line therapy for vasculitis. Role of anti-platelet and anticoagulant therapies in stroke-prophylaxis remains to be discussed, as those patients display a high risk of intracranial bleeding.
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Affiliation(s)
- A Fayand
- Department de médecine interne, DHUI2B, département hospitalo-universitaire inflammation, immunopathologie, biothérapie, hôpital Tenon, université Paris 6, Pierre et Marie Curie, Assistance publique-hôpitaux de Paris (AP-HP), 4 rue de la Chine, 75020 Paris, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France
| | - G Sarrabay
- Laboratoire de génétique, CHU de Montpellier, 34090 Montpellier, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France
| | - A Belot
- Inserm U1111, service de rhumatologie pédiatrique, hôpital Femme-Mère-Enfant, université Lyon 1, 69677 Bron, France; Centre de référence des rhumatismes et auto-immunité systémique de l'enfant (RAISE), 75015 Paris, France
| | - V Hentgen
- Service de pédiatrie générale, centre hospitalier de Versailles, 78150 Versailles, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France
| | - I Kone-Paut
- Service de rhumatologie pédiatrique, CHU de Bicêtre, université de Paris Sud, AP-HP, 94270 Kremlin-Bicêtre, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France
| | - G Grateau
- Department de médecine interne, DHUI2B, département hospitalo-universitaire inflammation, immunopathologie, biothérapie, hôpital Tenon, université Paris 6, Pierre et Marie Curie, Assistance publique-hôpitaux de Paris (AP-HP), 4 rue de la Chine, 75020 Paris, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France
| | - I Melki
- Service de pédiatrie générale, maladies infectieuses et médecine interne pédiatrique, centre hospitalier Robert-Debré, 75019 Paris, France; Centre de référence des rhumatismes et auto-immunité systémique de l'enfant (RAISE), 75015 Paris, France
| | - S Georgin-Lavialle
- Department de médecine interne, DHUI2B, département hospitalo-universitaire inflammation, immunopathologie, biothérapie, hôpital Tenon, université Paris 6, Pierre et Marie Curie, Assistance publique-hôpitaux de Paris (AP-HP), 4 rue de la Chine, 75020 Paris, France; Centre de référence des maladies auto-inflammatoires rares et de l'amylose inflammatoire (CEREMAIA), CHU de Tenon, 75020 Paris, France.
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40
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Hashem H, Kelly SJ, Ganson NJ, Hershfield MS. Deficiency of Adenosine Deaminase 2 (DADA2), an Inherited Cause of Polyarteritis Nodosa and a Mimic of Other Systemic Rheumatologic Disorders. Curr Rheumatol Rep 2017; 19:70. [DOI: 10.1007/s11926-017-0699-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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41
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Skrabl-Baumgartner A, Plecko B, Schmidt WM, König N, Hershfield M, Gruber-Sedlmayr U, Lee-Kirsch MA. Autoimmune phenotype with type I interferon signature in two brothers with ADA2 deficiency carrying a novel CECR1 mutation. Pediatr Rheumatol Online J 2017; 15:67. [PMID: 28830446 PMCID: PMC5568374 DOI: 10.1186/s12969-017-0193-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/04/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Loss-of-function CECR1 mutations cause polyarteritis nodosa (PAN) with childhood onset, an autoinflammatory disorder without significant signs of autoimmunity. Herein we describe the unusual presentation of an autoimmune phenotype with constitutive type I interferon activation in siblings with adenosine deaminase 2 (ADA2) deficiency. CASE PRESENTATION We describe two siblings with early-onset recurrent strokes, arthritis, oral ulcers, discoid rash, peripheral vascular occlusive disease and high antinuclear antibody titers. Assessment of interferon signatures in blood revealed constitutive type I interferon activation. Aicardi-Goutières syndrome (AGS) was suspected, but no mutation in the known AGS genes were detected. Whole exome sequencing identified compound heterozygosity for a known and a novel mutation in the CECR1 gene. Functional consequences of the mutations were demonstrated by marked reduction in ADA2 catalytic activity. CONCLUSIONS Our findings demonstrate that ADA2 deficiency can cause an unusual autoimmune phenotype extending the phenotypic spectrum of PAN. Constitutive interferon I activation in patient blood suggests a possible role of type I interferon in disease pathogenesis which may have therapeutic implications.
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Affiliation(s)
- Andrea Skrabl-Baumgartner
- Department of Pediatrics and Adolescent Medicine, Medical University Graz, Auenbruggerplatz 34/2, 8036, Graz, Austria.
| | - Barbara Plecko
- 0000 0004 1937 0650grid.7400.3Division of Child Neurology, University Children’s Hospital, University of Zurich, Zurich, Switzerland
| | - Wolfgang M. Schmidt
- 0000 0000 9259 8492grid.22937.3dNeuromuscular Research Department, Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria
| | - Nadja König
- 0000 0001 2111 7257grid.4488.0Department of Pediatrics, Medical Faculty, Technical University Dresden, Dresden, Germany
| | - Michael Hershfield
- 0000 0004 1936 7961grid.26009.3dDepartment of Medicine and Biochemistry, Duke University School of Medicine, Durham, NC USA
| | - Ursula Gruber-Sedlmayr
- 0000 0000 8988 2476grid.11598.34Department of Pediatrics and Adolescent Medicine, Medical University Graz, Auenbruggerplatz 34/2, 8036 Graz, Austria
| | - Min Ae Lee-Kirsch
- 0000 0001 2111 7257grid.4488.0Department of Pediatrics, Medical Faculty, Technical University Dresden, Dresden, Germany
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42
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Schepp J, Proietti M, Frede N, Buchta M, Hübscher K, Rojas Restrepo J, Goldacker S, Warnatz K, Pachlopnik Schmid J, Duppenthaler A, Lougaris V, Uriarte I, Kelly S, Hershfield M, Grimbacher B. Screening of 181 Patients With Antibody Deficiency for Deficiency of Adenosine Deaminase 2 Sheds New Light on the Disease in Adulthood. Arthritis Rheumatol 2017; 69:1689-1700. [DOI: 10.1002/art.40147] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Accepted: 05/04/2017] [Indexed: 12/22/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Ignacio Uriarte
- Child & Mother Hospital Vitorio Tetamanti; Mar del Plata Argentina
| | - Susan Kelly
- Duke University School of Medicine; Durham North Carolina
| | | | - Bodo Grimbacher
- University of Freiburg, Freiburg, Germany, and Royal Free Hospital, University College London; London UK
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43
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Sahin S, Adrovic A, Barut K, Ugurlu S, Turanli ET, Ozdogan H, Kasapcopur O. Clinical, imaging and genotypical features of three deceased and five surviving cases with ADA2 deficiency. Rheumatol Int 2017; 38:129-136. [PMID: 28516235 DOI: 10.1007/s00296-017-3740-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/11/2017] [Indexed: 12/29/2022]
Abstract
Deficiency of adenosine deaminase type 2 (DADA2) is a rare form of autoinflammatory disorder with limited reported cases. In this paper, we have presented the clinico-immunological, radiological and genetic characteristics of five surviving and three deceased childhood-onset DADA2 patients. We aimed to compare surviving and deceased patients in terms of clinical features and treatment modalities. Moreover, we have evaluated the causes of death in our DADA2 subjects together with the previously reported cases. Demographic features, clinical characteristics, imaging findings, mutations and pharmacological treatments of DADA2 subjects were noted from patient records of pediatric and adult rheumatology clinics in a retrospective and longitudinal nature. Eight patients from seven families were enrolled. While five of them were surviving, three of them had died due to various reasons. Median age of the patients at disease onset and diagnosis was 7 years (range 0.5-13 years) and 14 years (range 5-27 years), respectively. The main clinical manifestations were cutaneous findings (7/8), recurrent low-grade fever (6/8), neurological involvement (6/8) and gastrointestinal involvement (5/8). All patients had increased acute phase reactants at presentation and also during the disease flares. Until the diagnosis of DADA2 was confirmed, five patients have been followed-up with the diagnosis of PAN: two patients both with PAN and FMF, and one patient with CAPS and vasculitis. Demographic, clinical, neurological features and genetic mutations did not differ in surviving and deceased DADA2 patients. Deceased and surviving subjects differed in terms of treatment modalities after the diagnosis of DADA2. Anti-TNF alpha treatment has been initiated in five surviving patients as soon as the diagnosis of DADA2 was established. However, three patients who have died were not able to use sufficient doses of anti-TNF alpha treatment; in one case due to reluctance of patient and in two cases due to establishment of the definite diagnosis by genetic analysis at the same time with the last fatal DADA2 episode. Despite limited number of patients, this case series for the first time compares the phenotypic, genotypic and medication differences between surviving and deceased DADA2 patients. Anti-TNF alpha treatment seems to be efficient and lifesaving in DADA2 patients.
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Affiliation(s)
- Sezgin Sahin
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Amra Adrovic
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Kenan Barut
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Serdal Ugurlu
- Department of Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Eda Tahir Turanli
- Department of Molecular Biology and Genetics, Faculty of Science and Letters, Istanbul Technical University, Istanbul, Turkey
| | - Huri Ozdogan
- Department of Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Ozgur Kasapcopur
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.
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44
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Rodero MP, Crow YJ. Type I interferon-mediated monogenic autoinflammation: The type I interferonopathies, a conceptual overview. J Exp Med 2016; 213:2527-2538. [PMID: 27821552 PMCID: PMC5110029 DOI: 10.1084/jem.20161596] [Citation(s) in RCA: 281] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 10/17/2016] [Accepted: 10/20/2016] [Indexed: 12/14/2022] Open
Abstract
In this review paper, Rodero and Crow outline the current understanding of the type I interferonopathies. Type I interferon is a potent substance. As such, the induction, transmission, and resolution of the type I interferon–mediated immune response are tightly regulated. As defined, the type I interferonopathies represent discrete examples of a disturbance of the homeostatic control of this system caused by Mendelian mutations. Considering the complexity of the interferon response, the identification of further monogenic diseases belonging to this disease grouping seems likely, with the recognition of type I interferonopathies becoming of increasing clinical importance as treatment options are developed based on an understanding of disease pathology and innate immune signaling. Definition of the type I interferonopathies indicates that autoinflammation can be both interferon and noninterferon related, and that a primary disturbance of the innate immune system can “spill over” into autoimmunity in some cases. Indeed, that several non-Mendelian disorders, most particularly systemic lupus erythematosus and dermatomyositis, are also characterized by an up-regulation of type I interferon signaling suggests the possibility that insights derived from this work will have relevance to a broader field of clinical medicine.
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Affiliation(s)
- Mathieu P Rodero
- INSERM UMR 1163, Laboratory of Neurogenetics and Neuroinflammation, 75015 Paris, France
| | - Yanick J Crow
- INSERM UMR 1163, Laboratory of Neurogenetics and Neuroinflammation, 75015 Paris, France .,Paris Descartes University, Sorbonne-Paris-Cité, Institut Imagine, Hôpital Necker, 75015 Paris, France.,Faculty of Biology, Medicine, and Health, Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester M13 9NT, England, UK
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Abstract
Type I interferons (IFNs) play a central role in the immune defense against viral infections. Type I IFN activation is induced by pattern-recognition receptors of the innate immune system that sense pathogen-derived nucleic acids. Cellular responses to type I IFN signaling are orchestrated by a complex network of regulatory pathways that involve both the innate and adaptive immune system. The genetic and molecular dissection of rare Mendelian disorders associated with constitutive overproduction of type I IFN has provided unique insight into cell-intrinsic disease mechanisms that initiate and sustain autoinflammation and autoimmunity and that are caused by disturbances in the intracellular nucleic acid metabolism or in cytosolic nucleic acid-sensing pathways. Collectively, these findings have greatly advanced our understanding of mechanisms that protect the organism against inappropriate immune activation triggered by self nucleic acids while maintaining a prompt and efficient immune response to foreign nucleic acids derived from invading pathogens.
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Affiliation(s)
- Min Ae Lee-Kirsch
- Department of Pediatrics, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany;
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