TY - JOUR
T1 - Susceptibility to Amoxicillin-Clavulanate-Induced Liver Injury Is Influenced by Multiple HLA Class I and II Alleles
AU - Lucena, M. Isabel
AU - Molokhia, Mariam
AU - Shen, Yufeng
AU - Urban, Thomas J.
AU - Aithal, Guruprasad P.
AU - Andrade, Raul J.
AU - Day, Christopher P.
AU - Ruiz-Cabello, Francisco
AU - Donaldson, Peter T.
AU - Stephens, Camilla
AU - Pirmohamed, Munir
AU - Romero-Gomez, Manuel
AU - Maria Navarro, Jose
AU - Fontana, Robert J.
AU - Miller, Michael
AU - Groome, Max
AU - Bondon-Guitton, Emmanuelle
AU - Conforti, Anita
AU - Stricker, Bruno H. C.
AU - Carvajal, Alfonso
AU - Ibanez, Luisa
AU - Yue, Qun-Ying
AU - Eichelbaum, Michel
AU - Floratos, Aris
AU - Pe'er, Itsik
AU - Daly, Mark J.
AU - Goldstein, David B.
AU - Dillon, John F.
AU - Nelson, Matthew R.
AU - Watkins, Paul B.
AU - Daly, Ann K.
PY - 2011/7
Y1 - 2011/7
N2 - BACKGROUND & AIMS: Drug-induced liver injury (DILI), especially from antimicrobial agents, is an important cause of serious liver disease. Amoxicillin-clavulanate (AC) is a leading cause of idiosyncratic DILI, but little is understood about genetic susceptibility to this adverse reaction. METHODS: We performed a genome-wide association study using 822,927 single nucleotide polymorphism (SNP) markers from 201 White European and US cases of DILI following AC administration (AC-DILI) and 532 population controls, matched for genetic background. RESULTS: AC-DILI was associated with many loci in the major histocompatibility complex. The strongest effect was with an HLA class II SNP (rs9274407, P = 4.8 X 10(-14)), which correlated with rs3135388, a tag SNP of HLA-DRB1*1501-DQB1*0602 that was previously associated with AC-DILI. Conditioned on rs3135388, rs9274407 is still significant (P = 1.1 X 10(-4)). An independent association was observed in the class I region (rs2523822, P = 1.8 X 10(-10)), related to HLA-A*0201. The most significant class I and II SNPs showed statistical interaction (P = .0015). High-resolution HLA genotyping (177 cases and 219 controls) confirmed associations of HLA-A*0201 (P = 2 X 10(-6)) and HLA-DQB1*0602 (P = 5 X 10(-10)) and their interaction (P = .005). Additional, population-dependent effects were observed in HLA alleles with nominal significance. In an analysis of autoimmune- related genes, rs2476601 in the gene PTPN22 was associated (P = 1.3 X 10(-4)). CONCLUSIONS: Class I and II HLA genotypes affect susceptibility to AC-DILI, indicating the importance of the adaptive immune response in pathogenesis. The HLA genotypes identified will be useful in studies of the pathogenesis of AC-DILI but have limited utility as predictive or diagnostic biomarkers because of the low positive predictive values.
AB - BACKGROUND & AIMS: Drug-induced liver injury (DILI), especially from antimicrobial agents, is an important cause of serious liver disease. Amoxicillin-clavulanate (AC) is a leading cause of idiosyncratic DILI, but little is understood about genetic susceptibility to this adverse reaction. METHODS: We performed a genome-wide association study using 822,927 single nucleotide polymorphism (SNP) markers from 201 White European and US cases of DILI following AC administration (AC-DILI) and 532 population controls, matched for genetic background. RESULTS: AC-DILI was associated with many loci in the major histocompatibility complex. The strongest effect was with an HLA class II SNP (rs9274407, P = 4.8 X 10(-14)), which correlated with rs3135388, a tag SNP of HLA-DRB1*1501-DQB1*0602 that was previously associated with AC-DILI. Conditioned on rs3135388, rs9274407 is still significant (P = 1.1 X 10(-4)). An independent association was observed in the class I region (rs2523822, P = 1.8 X 10(-10)), related to HLA-A*0201. The most significant class I and II SNPs showed statistical interaction (P = .0015). High-resolution HLA genotyping (177 cases and 219 controls) confirmed associations of HLA-A*0201 (P = 2 X 10(-6)) and HLA-DQB1*0602 (P = 5 X 10(-10)) and their interaction (P = .005). Additional, population-dependent effects were observed in HLA alleles with nominal significance. In an analysis of autoimmune- related genes, rs2476601 in the gene PTPN22 was associated (P = 1.3 X 10(-4)). CONCLUSIONS: Class I and II HLA genotypes affect susceptibility to AC-DILI, indicating the importance of the adaptive immune response in pathogenesis. The HLA genotypes identified will be useful in studies of the pathogenesis of AC-DILI but have limited utility as predictive or diagnostic biomarkers because of the low positive predictive values.
U2 - 10.1053/j.gastro.2011.04.001
DO - 10.1053/j.gastro.2011.04.001
M3 - Article
SN - 1528-0012
VL - 141
SP - 338
EP - 347
JO - Gastroenterology
JF - Gastroenterology
IS - 1
ER -