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Review
. 2023 Jun 3;15(6):e39923.
doi: 10.7759/cureus.39923. eCollection 2023 Jun.

Bullous Pemphigoid and Human Leukocyte Antigen (HLA)-DQA1: A Systematic Review

Roksana Hesari  1 , Dylan Thibaut  1 , Nina Schur  1 , Shivani Thoutireddy  1 , Ryan Witcher  1 , Elyse Julian  2
Affiliations
Review

Bullous Pemphigoid and Human Leukocyte Antigen (HLA)-DQA1: A Systematic Review

Roksana Hesari et al. Cureus. .

Abstract

Bullous pemphigoid (BP) is an autoimmune blistering disease that mainly affects the elderly. The human leukocyte antigen (HLA) system is believed to be one of the genetic factors involved in the development of BP. The connection between major histocompatibility complex class II, specifically HLA-DQA1, and BP remains inconclusive. The objective of this review is to find potential associations between BP and HLA-DQA1 alleles, identify the HLA-DQA1 alleles associated with an increased or decreased risk of developing BP, and highlight literature gaps for future research. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were used to conduct a literature review. Databases used included PubMed/MEDLINE, Google Scholar, Embase, and Cochrane Library. Only studies written in English and conducted after 2000 that investigated the association between HLA-DQA1 and BP in human subjects were included. Odds ratios were calculated from the data provided in the studies, and a meta-analysis was conducted using Review Manager (The Cochrane Collaboration, London, United Kingdom) and MetaXL (EpiGear International Pty Ltd., Queensland, Australia) software. The systematic review found five eligible studies, and all were included in the meta-analysis. Results show an increased odds for BP in the HLA-DQA1*05:05 loci (odds ratio (OR) = 2.25; 95% confidence interval (CI) = 1.80, 2.80) and decreased odds for BP in the HLA-DQA1*02:01 loci (OR = 0.50; 95% CI = 0.36, 0.70). Further research is needed to confirm these findings and explore the potential clinical implications for personalized medicine approaches in BP patients.

Keywords: allele; bullous pemphigoid; dqa1; hla; hla-dqa1; human leukocyte antigen; meta-analysis; mhc; mhc class ii; systematic review.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. PRISMA flow diagram
PRISMA:  Preferred Reporting Items for Systematic Reviews and Meta-Analysis
Figure 2
Figure 2. HLA-DQA1*05:05 analysis data
Figure 3
Figure 3. HLA-DQA1*02:01 analysis data
See this image and copyright information in PMC

References

    1. The global incidence of bullous pemphigoid: a systematic review and meta-analysis. Persson MS, Begum N, Grainge MJ, Harman KE, Grindlay D, Gran S. Br J Dermatol. 2022;186:414–425. - PubMed
    1. Bullous pemphigoid: trigger and predisposing factors. Moro F, Fania L, Sinagra JL, Salemme A, Di Zenzo G. Biomolecules. 2020;10:1432. - PMC - PubMed
    1. New insights into the pathogenesis of bullous pemphigoid: 2019 update. Genovese G, Di Zenzo G, Cozzani E, Berti E, Cugno M, Marzano AV. Front Immunol. 2019;10:1506. - PMC - PubMed
    1. Trends in aging--United States and worldwide. Centers for Disease Control and Prevention. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5206a2.htm. MMWR Morb Mortal Wkly Rep. 2003;52:101-104, 106. - PubMed
    1. Genetics and omics analysis of autoimmune skin blistering diseases. Olbrich M, Künstner A, Witte M, Busch H, Fähnrich A. Front Immunol. 2019;10:2327. - PMC - PubMed

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