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Clin Immunol ; 230: 108812, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34329798

RESUMO

Autoimmune lymphoproliferative syndrome is a primary immunodeficiency caused by variants in FAS-mediated apoptosis related genes and is characterized by lymphadenopathy, splenomegaly and autoimmunity. A total of six different variants in CASP10 have been described as potential causative of disease, although two of them have recently been considered polymorphisms. The high allele frequency of these variants in healthy population in addition to the broad clinical spectrum of the disease difficult the interpretation of their pathogenicity. Here, we describe the clinical and analytical findings of three new patients carrying variants in CASP10 and summarize 12 more cases from the literature. Autoimmune cytopenias, adenopathies and increment of TCRαß+CD4-CD8- cells have been the most common findings, being possibly the FAS-mediated apoptosis pathway the pathogenic mechanism of this disease. The clinical impact and the consequences of CASP10 variants are not fully elucidated, therefore the description of new cases will contribute to solve this issue.


Assuntos
Síndrome Linfoproliferativa Autoimune/enzimologia , Síndrome Linfoproliferativa Autoimune/genética , Caspase 10/genética , Variação Genética , Adolescente , Adulto , Substituição de Aminoácidos , Apoptose/genética , Síndrome Linfoproliferativa Autoimune/diagnóstico , Feminino , Mutação da Fase de Leitura , Humanos , Masculino , Linhagem , Polimorfismo Genético , Polimorfismo de Nucleotídeo Único , Deleção de Sequência
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