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Abstract
PURPOSE OF THE REVIEW Rheumatic diseases usually have very diverse and complex pathophysiology resulting in different clinical phenotypes. Some certain phenotypes cluster together with a common presentation, course, and outcome. Our primary aim is to review the known disease clusters in certain rheumatological conditions. RECENT FINDINGS Cluster analysis has been reported in several rheumatic diseases, Behcet disease being the most common. Five individual clusters together with some clinical associations have been reported in Behcet patients. Certain antibody-phenotype associations and damage clusters have been reported in systemic lupus erythematosus (SLE) patients as well. Although there is no proper cluster analysis, two distinct phenotypes are evident in deficiency of ADA2 (DADA2): those with a polyarteritis nodosa-like vasculopathy and hematological involvement with pure red cell aplasia or bone marrow failure. The variants are claimed to be different regions of this gene for these 2 phenotypes. Lastly, there is a recent paper grouping ANCA-associated vasculitis according to disease phenotype and antibody associations. There are distinct clusters in certain rheumatic diseases which might help us to predict comorbidities, disease course, and treatment response.
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Affiliation(s)
- Erdal Sag
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - Selcan Demir
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - Seza Ozen
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey.
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Lee PY, Huang Z, Hershfield MS, Nigrovic PA. Analysis of peripheral blood ADA1 and ADA2 levels in children and adults. Response to: 'Total adenosine deaminase highly correlated with adenosine deaminase 2 activity in serum' by Gao et al. Ann Rheum Dis 2020; 81:e31. [PMID: 32054602 DOI: 10.1136/annrheumdis-2020-217055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 01/30/2020] [Indexed: 11/04/2022]
Affiliation(s)
- Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA .,Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Zhengping Huang
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Michael S Hershfield
- Department of Medicine and Biochemistry, Duke University School of Medicine, Durham, North Carolina, USA
| | - Peter A Nigrovic
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA .,Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Lee PY, Kellner ES, Huang Y, Furutani E, Huang Z, Bainter W, Alosaimi MF, Stafstrom K, Platt CD, Stauber T, Raz S, Tirosh I, Weiss A, Jordan MB, Krupski C, Eleftheriou D, Brogan P, Sobh A, Baz Z, Lefranc G, Irani C, Kilic SS, El-Owaidy R, Lokeshwar MR, Pimpale P, Khubchandani R, Chambers EP, Chou J, Geha RS, Nigrovic PA, Zhou Q. Genotype and functional correlates of disease phenotype in deficiency of adenosine deaminase 2 (DADA2). J Allergy Clin Immunol 2020; 145:1664-1672.e10. [PMID: 31945408 DOI: 10.1016/j.jaci.2019.12.908] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/07/2019] [Accepted: 12/27/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Deficiency of adenosine deaminase 2 (DADA2) is a syndrome with pleiotropic manifestations including vasculitis and hematologic compromise. A systematic definition of the relationship between adenosine deaminase 2 (ADA2) mutations and clinical phenotype remains unavailable. OBJECTIVE We sought to test whether the impact of ADA2 mutations on enzyme function correlates with clinical presentation. METHODS Patients with DADA2 with severe hematologic manifestations were compared with vasculitis-predominant patients. Enzymatic activity was assessed using expression constructs reflecting all 53 missense, nonsense, insertion, and deletion genotypes from 152 patients across the DADA2 spectrum. RESULTS We identified patients with DADA2 presenting with pure red cell aplasia (n = 5) or bone marrow failure (BMF, n = 10) syndrome. Most patients did not exhibit features of vasculitis. Recurrent infection, hepatosplenomegaly, and gingivitis were common in patients with BMF, of whom half died from infection. Unlike patients with DADA2 with vasculitis, patients with pure red cell aplasia and BMF proved largely refractory to TNF inhibitors. ADA2 variants associated with vasculitis predominantly reflected missense mutations with at least 3% residual enzymatic activity. In contrast, pure red cell aplasia and BMF were associated with missense mutations with minimal residual enzyme activity, nonsense variants, and insertions/deletions resulting in complete loss of function. CONCLUSIONS Functional interrogation of ADA2 mutations reveals an association of subtotal function loss with vasculitis, typically responsive to TNF blockade, whereas more extensive loss is observed in hematologic disease, which may be refractory to treatment. These findings establish a genotype-phenotype spectrum in DADA2.
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Affiliation(s)
- Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass; Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass.
| | - Erinn S Kellner
- Division of Allergy/Immunology, Cincinnati Children's Hospital and University of Cincinnati, Cincinnati, Ohio
| | - Yuelong Huang
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Elissa Furutani
- Dana Farber and Boston Children's Cancer and Blood Disorders Center, Boston, Mass
| | - Zhengping Huang
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass; Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Wayne Bainter
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Mohammed F Alosaimi
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass; Department of Pediatrics, King Saud University, Riyadh, Saudi Arabia
| | - Kelsey Stafstrom
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Craig D Platt
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Tali Stauber
- Primary Immunodeficiency Clinic, Sheba Medical Center, Jeffrey Modell Foundation, Tel Hashomer, Israel
| | - Somech Raz
- Primary Immunodeficiency Clinic, Sheba Medical Center, Jeffrey Modell Foundation, Tel Hashomer, Israel
| | - Irit Tirosh
- Pediatric Rheumatology Service, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Aaron Weiss
- Department of Pediatrics, Maine Medical Center, Portland, Me
| | - Michael B Jordan
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, Ohio; Division of Immunobiology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, Ohio
| | - Christa Krupski
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, Ohio
| | - Despina Eleftheriou
- University College London, Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Paul Brogan
- University College London, Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Ali Sobh
- Department of Pediatrics, Mansoura University Children's Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Zeina Baz
- Department of Pediatrics, St George Hospital University Medical Center, Beirut, Lebanon
| | - Gerard Lefranc
- Institut de Génétique Humaine, UMR 9002 CNRS-Université de Montpellier, Montpellier, France
| | - Carla Irani
- Internal Medicine & Clinical Immunology Department, Hotel Dieu de France Hospital, Saint Joseph University, Beirut, Lebanon
| | - Sara S Kilic
- Department of Pediatric Immunology and Rheumatology, Uludag University Medical Faculty, Bursa, Turkey
| | - Rasha El-Owaidy
- Pediatric Allergy and Immunology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - M R Lokeshwar
- Department of Pediatrics, Lilavati Hospital and Research Centre, Mumbai, India
| | | | | | - Eugene P Chambers
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tenn; DADA2 Foundation, Nashville, Tenn
| | - Janet Chou
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Raif S Geha
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - 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, Harvard Medical School, Boston, Mass
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Zhejiang, China
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Akgun-Dogan O, Simsek-Kiper PO, Taskiran E, Lissewski C, Brinkmann J, Schanze D, Göçmen R, Cagdas D, Bilginer Y, Utine GE, Zenker M, Ozen S, Tezcan İ, Alikasifoglu M, Boduroğlu K. ADA2 deficiency in a patient with Noonan syndrome-like disorder with loose anagen hair: The co-occurrence of two rare syndromes. Am J Med Genet A 2019; 179:2474-2480. [PMID: 31584751 DOI: 10.1002/ajmg.a.61363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022]
Abstract
Noonan syndrome-like disorder with loose anagen hair (NS/LAH) is one of the RASopathies, a group of clinically related developmental disorders caused by germline mutations in genes that encode components acting in the RAS/MAPK pathway. Among RASopathies, NS/LAH (OMIM 607721) is an extremely rare, multiple anomaly syndrome characterized by dysmorphic facial features similar to those observed in Noonan syndrome along with some distinctive ectodermal findings including easily pluckable, sparse, thin, and slow-growing hair. ADA2 deficiency (DADA2, OMIM 615688) is a monogenic autoinflammatory disorder caused by homozygous or compound heterozygous mutations in ADA2, with clinical features including recurrent fever, livedo racemosa, hepatosplenomegaly, and strokes as well as immune dysregulation. This is the first report of NS/LAH and ADA2 deficiency in the same individual. We report on a patient presenting with facial features, recurrent infections and ectodermal findings in whom both the clinical and molecular diagnoses of NS/LAH and ADA2 deficiency were established, respectively.
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Affiliation(s)
- Ozlem Akgun-Dogan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.,Division of Pediatric Genetics, Department of Pediatrics, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Pelin O Simsek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Taskiran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Christina Lissewski
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Julia Brinkmann
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Rahşan Göçmen
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Deniz Cagdas
- Division of Pediatric Immunology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yelda Bilginer
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen E Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Seza Ozen
- Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - İlhan Tezcan
- Division of Pediatric Immunology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Alikasifoglu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.,Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.,Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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