PMID- 22448225 OWN - NLM STAT- MEDLINE DCOM- 20120820 LR - 20240317 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 7 IP - 3 DP - 2012 TI - A common HLA-DPA1 variant is associated with hepatitis B virus infection but fails to distinguish active from inactive Caucasian carriers. PG - e32605 LID - 10.1371/journal.pone.0032605 [doi] LID - e32605 AB - BACKGROUND AND AIMS: Chronic infection with the hepatitis B virus (HBV) is a major health issue worldwide. Recently, single nucleotide polymorphisms (SNPs) within the human leukocyte antigen (HLA)-DP locus were identified to be associated with HBV infection in Asian populations. Most significant associations were observed for the A alleles of HLA-DPA1 rs3077 and HLA-DPB1 rs9277535, which conferred a decreased risk for HBV infection. We assessed the implications of these variants for HBV infection in Caucasians. METHODS: Two HLA-DP gene variants (rs3077 and rs9277535) were analyzed for associations with persistent HBV infection and with different clinical outcomes, i.e., inactive HBsAg carrier status versus progressive chronic HBV (CHB) infection in Caucasian patients (n = 201) and HBsAg negative controls (n = 235). RESULTS: The HLA-DPA1 rs3077 C allele was significantly associated with HBV infection (odds ratio, OR = 5.1, 95% confidence interval, CI: 1.9-13.7; p = 0.00093). However, no significant association was seen for rs3077 with progressive CHB infection versus inactive HBsAg carrier status (OR = 2.7, 95% CI: 0.6-11.1; p = 0.31). In contrast, HLA-DPB1 rs9277535 was not associated with HBV infection in Caucasians (OR = 0.8, 95% CI: 0.4-1.9; p = 1). CONCLUSIONS: A highly significant association of HLA-DPA1 rs3077 with HBV infection was observed in Caucasians. However, as a differentiation between different clinical courses of HBV infection was not possible, knowledge of the HLA-DPA1 genotype cannot be translated into personalized anti-HBV therapy approaches. FAU - Vermehren, Johannes AU - Vermehren J AD - pharmazentrum frankfurt/ZAFES, Institut fur Klinische Pharmakologie, Klinikum der J. W. Goethe Universitat, Frankfurt am Main, Germany. FAU - Lotsch, Jorn AU - Lotsch J FAU - Susser, Simone AU - Susser S FAU - Wicker, Sabine AU - Wicker S FAU - Berger, Annemarie AU - Berger A FAU - Zeuzem, Stefan AU - Zeuzem S FAU - Sarrazin, Christoph AU - Sarrazin C FAU - Doehring, Alexandra AU - Doehring A LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120320 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (DNA, Viral) RN - 0 (HLA-DP alpha-Chains) RN - 0 (HLA-DPA1 antigen) RN - 0 (Hepatitis B Surface Antigens) SB - IM MH - Adult MH - Alleles MH - Asian People/*genetics MH - Case-Control Studies MH - DNA, Viral/genetics MH - Female MH - Genetic Predisposition to Disease MH - Genotype MH - HLA-DP alpha-Chains/*genetics MH - Haplotypes MH - Hepatitis B/*genetics/immunology/*virology MH - Hepatitis B Surface Antigens/metabolism MH - Hepatitis B virus/*genetics/immunology MH - Heterozygote MH - Humans MH - Male MH - Polymerase Chain Reaction MH - Polymorphism, Single Nucleotide/*genetics MH - White People/*genetics PMC - PMC3308944 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2012/03/27 06:00 MHDA- 2012/08/21 06:00 PMCR- 2012/03/20 CRDT- 2012/03/27 06:00 PHST- 2011/11/21 00:00 [received] PHST- 2012/01/28 00:00 [accepted] PHST- 2012/03/27 06:00 [entrez] PHST- 2012/03/27 06:00 [pubmed] PHST- 2012/08/21 06:00 [medline] PHST- 2012/03/20 00:00 [pmc-release] AID - PONE-D-11-23768 [pii] AID - 10.1371/journal.pone.0032605 [doi] PST - ppublish SO - PLoS One. 2012;7(3):e32605. doi: 10.1371/journal.pone.0032605. Epub 2012 Mar 20.