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  • Title: Detection and genotyping of human papillomavirus DNA in cervical cancer tissues with fluorescence polarization.
    Author: Gao YE, Zhang J, Wu J, Chen ZC, Yan XJ.
    Journal: Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai); 2003 Nov; 35(11):1029-34. PubMed ID: 14614542.
    Abstract:
    To evaluate the type-specific prevalence of eight common types of human papillomavirus (HPV) in patients with cervical cancer living in Shanxi, China, with fluorescence polarization detection, crude DNA extracted from 137 samples of early-stage cervical cancer (within stage IIa) and chronic cervicitis was subjected to HPV L1 consensus GP5+/GP6+ system. Then, the HPV-positive products identified by GP5 + /GP6+ PCR were genotyped based on template-directed dye-terminator incorporation assay with fluorescence polarization detection (TDI-FP): the PCR products were respectively hybridized with designed type-specific probes within the GP5+/GP6+ amplicons for eight common HPV types (HPV 6, 11, 18, 16, 31, 33, 35, and 58), and specific fluorescence-labeled ddNTPs (TAMRA-ddTTP or R110-ddGTP) were directly incorporated to the ends of the corresponding probes under directing of the corresponding template in PCR products, which was reflected and read by high FP values for TAMRA or R110. HPV DNA was detected in 38.89% (28/72) cases of chronic cervicitis, and 87.69% (57/65) cases of cervical cancer. There was a significant difference in HPV prevalence between these two groups. The four commonly identified types in patients with cervical cancer were HPV 16 (45.6%), HPV 18 (22.8%), HPV 58 (17.5%), and HPV 31 (7.02%), and in those with chronic cervicitis were HPV 16 (35.7%), HPV 11 (32.1%), HPV 6 (21.4%), and HPV 18 (10.7%). 57.14% of HPV types detected in patients with chronic cervicitis were high-risk types. HPV 16 was the most common viral type identified in both groups. Type-specific prevalence of HPV DNA has some characteristics in patients with chronic cervicitis and cervical cancer living in Shanxi, China and the worldwide uncommon type HPV 58 is relatively common in both kinds of cases. The high prevalence of HPV 58 in Chinese women should been considered in diagnosis and vaccine designs of HPV.
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