Dominant Mutations in the Autoimmune Regulator AIRE Are Associated with Common Organ-Specific Autoimmune Diseases.
Immunity
; 42(6): 1185-96, 2015 Jun 16.
Article
en En
| MEDLINE
| ID: mdl-26084028
ABSTRACT
The autoimmune regulator (AIRE) gene is crucial for establishing central immunological tolerance and preventing autoimmunity. Mutations in AIRE cause a rare autosomal-recessive disease, autoimmune polyendocrine syndrome type 1 (APS-1), distinguished by multi-organ autoimmunity. We have identified multiple cases and families with mono-allelic mutations in the first plant homeodomain (PHD1) zinc finger of AIRE that followed dominant inheritance, typically characterized by later onset, milder phenotypes, and reduced penetrance compared to classical APS-1. These missense PHD1 mutations suppressed gene expression driven by wild-type AIRE in a dominant-negative manner, unlike CARD or truncated AIRE mutants that lacked such dominant capacity. Exome array analysis revealed that the PHD1 dominant mutants were found with relatively high frequency (>0.0008) in mixed populations. Our results provide insight into the molecular action of AIRE and demonstrate that disease-causing mutations in the AIRE locus are more common than previously appreciated and cause more variable autoimmune phenotypes.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Factores de Transcripción
/
Análisis Mutacional de ADN
/
Poliendocrinopatías Autoinmunes
/
Genes Dominantes
/
Mutación
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Adult
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
País/Región como asunto:
Asia
/
Europa
Idioma:
En
Revista:
Immunity
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Noruega