
Clinical value of HR-HPV E6/E7 DNA and mRNA for cervical disease screening
Wang Ya, He Min
Clinical value of HR-HPV E6/E7 DNA and mRNA for cervical disease screening
Objective To determine the clinical value of high-risk human papillomavirus(HR-HPV) E6/E7 DNA and mRNA for cervical disease screening. Methods We retrospectively analyzed 754 patients’ results of HR-HPV E6/E7 DNA testing,E6/E7 mRNA testing,liquid-based cytology(LBC),colposcopy,and histopathological examination. The positive rates of E6/E7 DNA and E6/E7 mRNA by cytological diagnosis and histopathological diagnosis were compared. With histopathological diagnosis as the gold standard,the value of E6/E7 DNA and E6/E7 mRNA for detecting high-grade squamous intraepithelial lesions or severer conditions(HSIL+) was evaluated. Results Among the 754 patients,the detection rates of HR-HPV E6/E7 DNA and E6/E7 mRNA were 24.80% and 17.9%,respectively,in which HPV52,58,and 16 were most common. The positive rates of E6/E7 DNA and E6/E7 mRNA increased as cytological and histopathological grades increased. The positive rates of E6/E7 DNA and E6/E7 mRNA in patients with HSIL(+) (93.75%,15/16;100%,16/16) were significantly higher than those in patients with LSIL(-)(23.30%,172/738;16.12%,119/738),which were all significantly higher than the positive rates of LBC in patients with HSIL(+) and those with LSIL(-)(81.25%,13/16;5.56%,41/738;P<0.01). For detecting HSIL(+),E6/E7 DNA,E6/E7 mRNA,E6/E7 DNA+LBC,and E6/E7 mRNA+LBC showed similar high sensitivities(93.80%,93.80%,100%,and 100%,respectively) and negative predictive values(99.80%,99.80%,100.00%,and 100.00%,respectively;P>0.05). E6/E7 mRNA and E6/E7 mRNA+LBC were superior to E6/E7 DNA and E6/E7 DNA+LBC in terms of specificity,positive predictive value,the Yoden index,and the area under the receiver operating characteristic curve(P<0.01),and there were no significant differences between E6/E7 DNA and E6/E7 mRNA alone and their combinations with LBC(P>0.05). Conclusion HR-HPV E6/E7 DNA and E6/E7 mRNA are related to the severity of cervical lesions,both with high diagnostic efficacy for HSIL(+) screening,and HR-HPV E6/E7 mRNA is superior to E6/E7 DNA.
E6/E7 DNA / E6/E7 mRNA / high-risk human papillomavirus / cervical lesion
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