Immunodeficiency by defective expression of MHC class I
Synonyms: Bare lymphocyte syndrome type 1 | MHC class I deficiency
A rare autosomal recessive primary immunodeficiency characterized by severe reduction in the cell surface expression of HLA class I molecules typically resulting in childhood-onset of chronic bacterial infections of the respiratory tract evolving to widespread bronchiectasis and respiratory insufficiency. Sterile necrotizing granulomatous skin lesions mainly involving the extremities and the mid-face may be observed in some patients. Severe viral infections do not occur as part of the condition. Atypical variants without respiratory or cutaneous manifestations as well as asymptomatic individuals have been reported.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http: //www.orphadata.org. Data version September 2023.
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Immunodeficiency by defective expression of MHC class I?
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Care-for-Rare America Inc
To establish a global alliance in order to identify the genetic causes of rare diseases and develop effective treatments, following a three-stage approach: recognize, understand, cure.
Immune Deficiency Foundation
To improve the diagnosis, treatment and quality of life of people affected by primary immunodeficiency.
Ukrainian Association of Pediatric Immunology
Development of pediatric and clinical immunology in Ukraine. Raising awareness of inborn errors of immunity in Ukraine and rare immune diseases; Advocacy campaigns supporting patients with rare immune diseases and their treatment plans; Scientific research; Sharing knowledge about immunoprophylaxis; Advocacy campaigns supporting immunoprophylaxis.
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Syndromes Without A Name (SWAN) Australia
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