Upregulation of nuclear factor-κB (NF-κB) is related to the grade of cervical intraepithelial neoplasia, but is not an independent predictor of high-risk human papillomavirus or disease outcome in cervical cancer
Upregulation of nuclear factor-κB (NF-κB) is related to the grade of cervical intraepithelial neoplasia, but is not an independent predictor of high-risk human papillomavirus or disease outcome in cervical cancer
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DOI:
10.1002/dc.20514
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发表时间:
2006-08-01
影响因子:
1.3
通讯作者:
Syrjanen, S.
中科院分区:
文献类型:
--
作者:
Branca, M.;Giorgi, C.;Syrjanen, S.
Nuclear factor-kappa B (NF-kappa B) has a pivotal function in controlling a wide variety of gene functions, and has shown to be constitutively activated in many human cancers. The molecular links of NF-kappa B to oncogenic human papillomavirus (HPV) in cervical intraepithelial neoplasia (CIN) lesions and its prognostic value in cervical cancer (CC) are incompletely understood.As part of our HPV-PathogenISS study, a series of 150 squamous-cell carcinomas (SCCs) and 152 CIN lesions were examined using immunohistochemical staining for NF-kappa B, and tested for HPV using PCR with three printer sets (MY09/11, GP5(+)/ GP6(+). and SPF). Follow-up data were available from all SCC patients, and 67 CIN lesions had been monitored with serial PCR for HPV clearance/persistence after cone treatment.Cytoplasmic NF-kappa B expression was associated with CIN3/cancer at OR 3.55 (95% CI, 1.79-7.05), while nuclear NF-kappa B expression had an OR of 21.90 (95% CI, 2.96-161.74) (P = 0.0001). Strong nuclear expression was a rare event (8.8%) also in CC, but it was related to high-risk human papillomavirus (HR-HPV) detection, with OR 2.15 (95% CI, 1.08-4.30) (P = 0.022), This association was confounded, however, by the histological grade (Mantel-Haenszel common OR = 1.46; 95% CI, 0.70-3.03) (P = 0.308). Cytoplasmic or nuclear NF-kappa B expression did not predict clearance/persistence of HR-HPV after treatment of CIN, and neither one proved to be a prognostic predictor in CC.Overexpression of cytoplasmic NF-kappa B is significantly associated with progression to CIN3 and cancer. This is paralleled by only a slight increase in nuclear expression of NF-kappa B, which could be explained by the mechanisms whereby HR-HPVs escape from the transcriptional control of NF-kappa B, i.e., E7-mediated impaired nuclear translocation of cytoplasmic NF-kappa B, and E6-conditioned attenuated NF-kappa B (p65)-dependent transcriptional activity.