title: Relation of HLA class I and II supertypes with spontaneous clearance of hepatitis C virus.
abstract: Human leukocyte antigen (HLA) genotype has been associated with the probability of spontaneous clearance of hepatitis C virus (HCV). However, no prior studies have examined whether this relationship may be further characterized by grouping HLA alleles according to their supertypes, defined by their binding capacities. There is debate regarding the most appropriate method to define supertypes. Therefore, previously reported HLA supertypes (46 class I and 25 class II) were assessed for their relation with HCV clearance in a population of 758 HCV-seropositive women. Two HLA class II supertypes were significant in multivariable models that included: (i) supertypes with significant or borderline associations with HCV clearance after adjustment for multiple tests, and (ii) individual HLA alleles not part of these supertypes, but associated with HCV clearance in our prior study in this population. Specifically, supertype DRB3 (prevalence ratio (PR)=0.4; P=0.004) was associated with HCV persistence, whereas DR8 (PR=1.8; P=0.01) was associated with HCV clearance. Two individual alleles (B*57:01 and C*01:02) associated with HCV clearance in our prior study became nonsignificant in analysis that included supertypes, whereas B*57:03 (PR=1.9; P=0.008) and DRB1*07:01 (PR=1.7; P=0.005) retained their significance. These data provide epidemiologic support for the significance of HLA supertypes in relation to HCV clearance.
authors: Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, USA. mark.kuniholm@einstein.yu.edu
authors: M H
authors: MH
authors: Kuniholm
authors: K
authors: K
authors: Anastos
authors: A
authors: A
authors: Kovacs
authors: X
authors: X
authors: Gao
authors: D
authors: D
authors: Marti
authors: A
authors: A
authors: Sette
authors: R M
authors: RM
authors: Greenblatt
authors: M
authors: M
authors: Peters
authors: M H
authors: MH
authors: Cohen
authors: H
authors: H
authors: Minkoff
authors: S J
authors: SJ
authors: Gange
authors: C L
authors: CL
authors: Thio
authors: M A
authors: MA
authors: Young
authors: X
authors: X
authors: Xue
authors: M
authors: M
authors: Carrington
authors: H D
authors: HD
authors: Strickler
mesh_terms: D005260:Female; D006680:HLA Antigens / Q000145:classification / Q000235:genetics / Q000276:immunology*; D015235:HLA-B Antigens / Q000235:genetics / Q000276:immunology*; D059810:HLA-DR Serological Subtypes / Q000235:genetics / Q000276:immunology*; D059811:HLA-DRB1 Chains / Q000235:genetics / Q000276:immunology*; D016174:Hepacivirus / Q000276:immunology*; D006526:Hepatitis C / Q000235:genetics / Q000276:immunology* / Q000821:virology; D006801:Humans; D015999:Multivariate Analysis; D012196:Review Literature as Topic
chemical_list: D006680:HLA Antigens; D015235:HLA-B Antigens; C496219:HLA-B*57:03 antigen; D059810:HLA-DR Serological Subtypes; C041559:HLA-DR8 antigen; D059811:HLA-DRB1 Chains; C456920:HLA-DRB1*07 antigen
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