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      • The KIF1B (rs17401966) Single Nucleotide Polymorphism is not Associated with the Development of HBV-related Hepatocellular Carcinoma in Thai Patients

        Sopipong, Watanyoo,Tangkijvanich, Pisit,Payungporn, Sunchai,Posuwan, Nawarat,Poovorawan, Yong Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.5

        Hepatitis B virus (HBV) infection can become chronic and if left untreated can progress to hepatocellular carcinoma (HCC).Thailand is endemic for HBV and HCC is one of the top five cancers, causing deaths among Thai HBV-infected males. A single nucleotide polymorphism (SNP) at the KIF1B gene locus, rs17401966, has been shown to be strongly associated with the development of HBV-related HCC. However, there are no Thai data on genotypic distribution and allele frequencies of rs17401966. Thai HBV patients seropositive for HBsAg (n=398) were therefore divided into two groups: a case group (chronic HBV with HCC; n=202) and a control group (HBV carriers without HCC; n=196). rs17401966 was amplified by polymerase chain reaction (PCR) and analyzed by direct nucleotide sequencing. The genotypic distribution of rs174019660 for homozygous major genotype (AA), heterozygous minor genotype (AG) and homozygous minor genotype (GG) in the case group was 49.5% (n=100), 40.1% (n=81) and 10.4% (n=21), respectively, and in controls was 49.5% (n=97), 42.3% (n=83) and 8.2% (n=16). Binary logistic regression showed that rs17401966 was not statistically associated with the risk of HCC development in Thai chronic HBV patients (p-value=0.998, OR=1.00 and 95% CI=0.68-1.48). In conclusion, the KIF1B gene SNP (rs174019660) investigated in this study showed no significant association with HBV-related HCC in Thai patients infected with HBV, indicating that there must be other mechanisms or pathways involved in the development of HCC.

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