Survivin as a marker of cervical intraepithelial neoplasia and high-risk human papillomavirus and a predictor of virus clearance and prognosis in cervical cancer
intraepithelial neoplasia (CIN) and high-risk human
papillomavirus (HR-HPV) and a predictor of HPV
clearance and disease outcome in cervical cancer in 302
samples (squamous cell carcinomas [SCCs], 150; CIN
lesions, 152) by immunohistochemical staining with
survivin antibody and HPV testing using polymerase
chain reaction.
HR-HPV types were associated closely with CIN
and SCC. There was a significant linear relationship
between grade and intensity of survivin expression (P =
.0001). Survivin overexpression also was associated
strongly with HR-HPV type (P = .0001). Multivariate
regression analysis revealed survivin and p16INK4a as
equally strong independent predictors of HR-HPV.
Deregulated survivin expression did not predict
clearance or persistence of HR-HPV after treatment of
CIN or survival in cervical cancer in univariate (P =
.417) or multivariate analysis. After adjustment for HRHPV,
stage, age, and tumor grade in the Cox regression
model, only stage (P = .0001) and age (P = .0001)
remained independent prognostic predictors.
Survivin seems to be an early marker of cervical
carcinogenesis. Up-regulated survivin expression was
an independent predictor of HR-HPV in cervical
lesions, most plausibly explained by its normal
transcriptional repression by wild-type p53 being
eliminated by HR-HPV E6 oncoprotein.