LRBA deficiency with autoimmunity and early onset chronic erosive polyarthritis
| Autor: | Pierre Quartier, Julie Bruneau, Sylvain Breton, Marie-Claude Stolzenberg, Patrick Nitschke, Aude Magerus-Chatinet, Benedicte Neven, Sylvie Sauvion, Frédéric Rieux-Laucat, Alain Fischer, Mohammed Zarhrate, Eva Lévy |
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| Rok vydání: | 2016 |
| Předmět: |
Male
0301 basic medicine Evans syndrome Adolescent Immunoblotting Immunology Arthritis Autoimmunity medicine.disease_cause Autoimmune thrombocytopenia LRBA Consanguinity 03 medical and health sciences Fatal Outcome 0302 clinical medicine medicine Humans Immunology and Allergy Exome Enteropathy Exome sequencing Adaptor Proteins Signal Transducing Family Health business.industry Siblings Sequence Analysis DNA medicine.disease Uveitis Anterior Pedigree Diabetes Mellitus Type 1 030104 developmental biology Child Preschool Chronic Disease Mutation Female Polyarthritis business 030215 immunology |
| Zdroj: | Clinical Immunology. 168:88-93 |
| ISSN: | 1521-6616 |
| DOI: | 10.1016/j.clim.2016.03.006 |
| Popis: | LRBA (lipopolysaccharide-responsive and beige-like anchor protein) deficiency associates immune deficiency, lymphoproliferation, and various organ-specific autoimmunity. To date, prevalent symptoms are autoimmune cytopenias and enteropathy, and lymphocytic interstitial lung disease. In 2 siblings from a consanguineous family presenting with early onset polyautoimmunity, we presumed autosomal recessive inheritance and performed whole exome sequencing. We herein report the first case of early-onset, severe, chronic polyarthritis associated with LRBA deficiency. A novel 1bp insertion in the LRBA gene, abolishing protein expression, was identified in this family. Among the 2 brothers homozygous for LRBA mutation, one developed Evans syndrome and deceased at age 8.5 from complications of severe autoimmune thrombocytopenia. His brother, who carried the same homozygous LRBA mutation, early-onset erosive polyarthritis associated with chronic, bilateral, anterior uveitis and early onset type 1 diabetes mellitus. This report widens the clinical spectrum of LRBA deficiency and, in lights of the variable phenotypes described so far, prompts us to screen for this disease in patients with multiple autoimmune symptoms in the family, including severe, erosive, polyarticular juvenile arthritis. |
| Databáze: | OpenAIRE |
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