World journal of gastroenterology · 2018
Genetic variants of interferon regulatory factor 5 associated with chronic hepatitis B infection.
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Sy Bui Tien, Hoan Nghiem Xuan, Tong Hoang Van, Meyer Christian G, Toan Nguyen Linh, Song Le Huu, Bock Claus-Thomas, Velavan Thirumalaisamy P
Аннотация
AIM: To investigate possible effects of IRF5 polymorphisms in the 3' UTR region of the IFR5 locus on susceptibility to hepatitis B virus (HBV) infection and progression of liver diseases among clinically classified Vietnamese patients.
METHODS: Four IFR5 SNPs (rs13242262A/T, rs77416878C/T, rs10488630A/G, and rs2280714T/C) were genotyped in clinically classified HBV patients [chronic hepatitis B (CHB). n = 99; liver cirrhosis (LC), n = 131; hepatocellular carcinoma (HCC), n = 149] and in 242 healthy controls by direct sequencing and TaqMan real-time PCR assays.
RESULTS: Comparing patients and controls, no significant association was observed for the four IFR5 variants. However, the alleles rs13242262T and rs10488630G contributed to an increased risk of liver cirrhosis (LC vs CHB: OR = 1.5, 95%CI: 1.1-2.3, adjusted P = 0.04; LC vs CHB: OR = 1.7, 95%CI: 1.1-2.6, adjusted P = 0.019). Haplotype IRF5*TCGT constructed from 4 SNPs was observed frequently in LC compared to CHB patients (OR = 2.1, 95%CI: 1.2-3.3, adjusted P = 0.008). Haplotype IRF5*TCAT occurred rather among CHB patients than in the other HBV patient groups (LC vs CHB: OR = 0.4, 95%CI: 0.2-0.8, adjusted P = 0.03; HCC vs CHB: OR = 0.3, 95%CI: 0.15-0.7, adjusted P = 0.003). The IRF5*TCAT haplotype was also associated with increased levels of ALT, AST and bilirubin.
CONCLUSION: Our study shows that IFR5 variants may contribute as a host factor in determining the pathogenesis in chronic HBV infections.
METHODS: Four IFR5 SNPs (rs13242262A/T, rs77416878C/T, rs10488630A/G, and rs2280714T/C) were genotyped in clinically classified HBV patients [chronic hepatitis B (CHB). n = 99; liver cirrhosis (LC), n = 131; hepatocellular carcinoma (HCC), n = 149] and in 242 healthy controls by direct sequencing and TaqMan real-time PCR assays.
RESULTS: Comparing patients and controls, no significant association was observed for the four IFR5 variants. However, the alleles rs13242262T and rs10488630G contributed to an increased risk of liver cirrhosis (LC vs CHB: OR = 1.5, 95%CI: 1.1-2.3, adjusted P = 0.04; LC vs CHB: OR = 1.7, 95%CI: 1.1-2.6, adjusted P = 0.019). Haplotype IRF5*TCGT constructed from 4 SNPs was observed frequently in LC compared to CHB patients (OR = 2.1, 95%CI: 1.2-3.3, adjusted P = 0.008). Haplotype IRF5*TCAT occurred rather among CHB patients than in the other HBV patient groups (LC vs CHB: OR = 0.4, 95%CI: 0.2-0.8, adjusted P = 0.03; HCC vs CHB: OR = 0.3, 95%CI: 0.15-0.7, adjusted P = 0.003). The IRF5*TCAT haplotype was also associated with increased levels of ALT, AST and bilirubin.
CONCLUSION: Our study shows that IFR5 variants may contribute as a host factor in determining the pathogenesis in chronic HBV infections.
Предметные рубрики MeSH
3' Untranslated RegionsAdolescentAdultAgedCarcinoma, HepatocellularCase-Control StudiesDisease ProgressionFemaleGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseHaplotypesHepatitis B, ChronicHumansInterferon Regulatory FactorsLiver CirrhosisLiver NeoplasmsLogistic ModelsMaleMiddle AgedOdds RatioPhenotypePolymorphism, Single NucleotideRisk FactorsVietnamYoung Adult