p16INK4a Immunostaining Identifies Occult CIN Lesions in HPV-positive Women
p16INK4a Immunostaining Identifies Occult CIN Lesions in HPV-positive Women
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DOI:
10.1097/pgp.0b013e31817e9ac5
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发表时间:
2009-01-01
影响因子:
2.4
通讯作者:
Torne, Aureli
中科院分区:
文献类型:
--
作者:
Ordi, Jaume;Garcia, Sonia;Torne, Aureli
To evaluate whether p16(INK4a) staining could help to recognize underestimated cervical intraepithelial neoplasia (CIN) in women positive for high-risk human papillomavirus (HR-HPV) with negative biopsy. Out Of 1,259 women undergoing a histologic study and a simultaneous HR-HPV detection using the Hybrid Capture 2 test, we selected all patients testing positive for HR-HPV and having a negative biopsy (n = 139), as well as all women testing negative for HR-HPV With a biopsy of either CIN 1 (26 cases) or CIN 2 to 3 (11 cases). Of the remaining 1,083 women, we randomly selected for the purpose of controls, 50 cases negative for HR-HPV with negative biopsy and 100 cases positive for HR-HPV and with biopsy of CIN (50 CIN 1, 50 CIN 2-3). In all cases, immunohistochemical staining for p16(INK4a) and a second evaluation of the initial biopsy was carried out. Thirty-four out of 139 biopsies (24.5%) testing positive for HR-HPV but having a negative biopsy were positive for p16(INK4a). Thirty of these cases (21.6%) were classified as harboring a CIN (11 CIN 1, 19 CIN 2/3) after reevaluation. Both the number of cases reclassified as CIN of any grade, or as CIN 2/3, were significantly higher for cases with HR-HPV load above 100 relative light unit (P