[Association between HPV infection and HLA-DQB1 alleles polymorphism in the cervical carcinogenesis in Uyghur women in southern Xinjiang].

OBJECTIVE

To investigate the association between HPV infection and HLA-DQB1 alleles polymorphism in the cervical carcinogenesis in Uyghur women in southern Xinjiang.

METHODS

Twenty-one subtypes of HPV and the 5 alleles of HLA-DQB1 were detected from cervical tissues of 190 cervical cancer cases and 190 normal subjects by flow-through hybridization and gene chip (HybriMax) assay and polymerase chain reaction sequence-specific oligonucleotide technique (PCR-SSO).

RESULTS

(1) The positive rate of HPV in cervical cancer and control groups were 70.0% and 8.9%, respectively. HPV16 was the most common type in HPV positive cervical cancer patients with a rate of 64.7%, followed by HPV18 (2.6%), HPV68 (2.1%), HPV45 (1.6%), HPV58 (1.6%), HPV39 (1.6%), HPV31 (1.1%), HPV56 (1.1%), HPV59 (0.5%), HPV53 (0.5%) and HPV6 (0.5%), respectively. The positive rates of HPV and HPV16 in the cervical cancer group were significantly higher than that in the control group. (2) The frequency of HLA-DQB103 was significantly lower than that in the control group (OR = 0.683, 95%CI = 0.505 - 0.923). The frequency of other HLA alleles had no significant differences between the cervical cancer group and the control group. (3) In the cervical cancer group, the frequency of HLA-DQB106 in both HPV positive and HPV16 positive cases were significantly higher than that in both the HPV and HPV16 negative cases.

CONCLUSION

HPV16 is the most common type in both the cervical cancer and control groups. It appears that HLA-DQB103 may be a protective gene in the cervical carcinogenesis in southern Xinjiang Uyghur women, and the HLA-DQB106 is a susceptibility gene to HPV/HPV16 infection in Uyghur women. The study of HLA alleles in the cervical carcinogenesis in Uyghur women may play an important role in the intervention research of cervical cancer.