Polymorphisms of the Bcl-2 family member bfl-1 in children with atopic dermatitis

Andrew Gray, Helen Stewart, Vera Pravica, Anthony A. Fryer, Warren Lenney, Ian V. Hutchinson, Peter D. Arkwright

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    T lymphocytes accumulating in the skin of patients with atopic dermatitis (AD) have a prolonged survival and are key mediators of this inflammatory disease. The anti-apoptotic bfl-1 gene is unique in that it is the only member of the Bcl-2 family that is transcriptionally regulated by inflammatory cytokines and might therefore be important in promoting the survival of effector T cells in patients with AD. The aim of this study was to determine whether polymorphisms in the bfl-1 gene are associated with a predisposition to childhood AD. Four bfl-1 gene, single nucleotide polymorphisms (SNPs) were studied by ARMS-PCR in 105 Caucasian children with moderately severe AD and 110 non-atopic adult controls. In addition to the known polymorphisms of exon 1 (+141*A/G, +202*G/T, +303*A/G), we described a novel polymorphism in the promoter region of the gene (-1182*G/C). We found a significant difference in bfl-1 +141 genotype [OR (95% CI) 5.1 (1.0-25.2)], as well as bfl-1-1182:+141:+202:+303 G:A:G:A/G:A:G:A diplotype frequencies [3.5 (1.0-12.2)] in AD (p <0.05). The study thus provides evidence for an association between bfl-1 polymorphisms and the genetic predisposition to AD. © 2006 The Authors.
    Original languageEnglish
    Pages (from-to)578-582
    Number of pages4
    JournalPediatric Allergy and Immunology
    Issue number8
    Publication statusPublished - Dec 2006


    • Apoptosis
    • Atopic dermatitis
    • bcl-2
    • Children
    • Polymorphisms


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