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Sporadic pemphigus foliaceus and class II human leucocyte antigen allele associations in the white British and Indo-Asian populations in the UK

Research output: Contribution to journalArticle

M. Saha, K. Harman, N. J. Mortimer, V. Binda, M. M. Black, E. Kondeatis, R. Vaughan, R. W. Groves

Original languageEnglish
JournalClinical and Experimental Dermatology
DOIs
Accepted/In press1 Jan 2018

King's Authors

Abstract

Background: Pemphigus foliaceus (PF) has both genetic and environmental susceptibility factors. Current data on human leucocyte antigen (HLA) in patients with sporadic PF are limited. Aim: To better define the distribution of HLA alleles in patients with PF in the UK. Methods: We recruited 36 patients [26 of white British (WB) descent, 10 of Indo-Asian (IA) descent] with PF who were living in the UK and 159 ethnically matched normal controls, and analysed their class II HLA DRB1 and DQB1 allele distribution. Results: There was an increased frequency of DRB1*1404 in association with DQB1*0503 in IA patients with PF. The DRB1*04 allele group as a whole had an increased frequency (P < 0.001) in the WB patient group compared with controls. The alleles contributing to this significance were DRB1*0401 (P = 0.03) and DRB1*0404 (P < 0.01). Conclusion: This is the largest HLA association study in sporadic PF from the UK to date. There appears to be a difference in PF susceptibility alleles between WB and IA patients, highlighting the importance of racial variation in genetic susceptibility to disease development.

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