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- Title
IkappaBalpha gene promoter polymorphisms are associated with hepatocarcinogenesis in patients infected with hepatitis B virus genotype C.
- Authors
Yongchao He; Hongwei Zhang; Jianhua Yin; Jiaxin Xie; Xiaojie Tan; Shijian Liu; Qian Zhang; Chengzhong Li; Jun Zhao; Hongyang Wang; Guangwen Cao
- Abstract
Genetic predisposition of nuclear factor-kappa B (NF-κB)-signaling pathways linking inflammation to hepatitis B virus (HBV)-induced hepatocellular carcinoma (HCC) remains unresolved. We conducted a case–control study to determine the associations of the polymorphisms within the promoter regions of NFKB1 encoding NF-κB1 and NFKBIA encoding IkappaBalpha with the development of HCC. A total of 404 healthy controls, 482 non-HCC subjects with HBV infection and 202 patients with HCC were included. NFKB1 −94ATTG2 allele and GG allele in the 3′-untranslated region of NFKBIA were more prevalent in HCC patients than in the healthy controls. NFKBIA −826CT and NFKBIA −881AG allelic carriages were more prevalent in HCC patients than in the non-HCC subjects with HBV infection. The estimated haplotype frequency of NFKBIA promoter −881G−826T−519C was significantly higher in the patients with HCC than in the HBV-infected subjects without HCC (odds ratio = 3.142, P = 0.002). As compared with the HBV-infected subjects without HCC, NFKBIA −826 T and NFKBIA −881AG allelic carriages were only associated with HCC risk in the subjects with HBV genotype C. The association of NFKBIA −881AG allelic carriage with HCC risk was not affected by liver cirrhosis (LC) status, alanine aminotransferase level and hepatitis B e antigen status. By multivariate regression analysis, NFKB1 −94ATTG2, NFKBIA −826T, NFKBIA −881AG and HBV genotype C were independently associated with an increased risk of HCC. In conclusion, NFKB1 −94ATTG2 allele and haplotype −881G−826T−519C in NFKBIA promoter were associated with hepatocarcinogenesis. NFKBIA −826T and −881AG were associated with the risk of HCC in the subjects infected with HBV genotype C.
- Subjects
GENETIC polymorphisms; LIVER diseases; CARCINOGENESIS; HEPATITIS B virus; CANCER cells; CANCER risk factors
- Publication
Carcinogenesis, 2009, Vol 30, Issue 11, p1916
- ISSN
0143-3334
- Publication type
Article
- DOI
10.1093/carcin/bgp226