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- W75277777 abstract "Objective To explore the feasibility and practical value of fluorescence in situ hybridization (FISH) detection of TERC gene amplification in cervical intraepithelial lesions (CIN) and squamous cell carcinoma (SCC). Methods Tissue microarray was constructed to cover 150 cases of various cervical conditions, including 24 cases of normal cervical mucosa, 78 cases of CINs ( CIN Ⅰ , 25 cases; CIN Ⅱ , 21 cases and CIN Ⅲ, 32 cases) and 48 cases of SCC. FISH was used to detect TERC gene amplification. Results TERC gene amplification was detected in 8% (2/25) CIN Ⅰ , 47.6% ( 10/21 )CIN Ⅱ, 71.9% (23/32) CIN Ⅲ and 87.5% (42/48) SCC. There were significant differences among these groups (P ＜ 0.05 ). The amplification rates of TERC gene in SCC, CIN Ⅲ and CIN Ⅱ were significantly higher than those of normal cervical epithelium and CIN Ⅰ ( P ＜ 0.05 ). Significant differences were also observed among CIN Ⅰ and CIN Ⅱ , CIN Ⅲ and SCC ( P ＜ 0.05 ), and between CIN Ⅱ and SCC(P ＜0.05). There were no significant differences between normal cervical epithelium and CIN Ⅰ , CIN Ⅱ and CIN Ⅲ, and between CIN Ⅲ and SCC (P ＞ 0.05 ). FISH detection of amplification of TERC gene in CIN Ⅰ and CIN Ⅱ -Ⅲ demonstrated the following statistics: sensitivity of 62. 3%, specificity of 92.0%,accuracy of 71.8%, positive and negative predictive values of 94.3% and 53.5%, respectively.Conclusions FISH detection is a reliable method in detecting TERC gene amplification using paraffin tissue sections. When histological evaluation becomes difficult, TERC amplification detectable by FISH may offer a diagnostic distinction of CIN Ⅰ from CIN Ⅱ. Moreover, TERC amplification may be used as a biomarker in predicting CIN progression to invasive cancer.Key words: Cervical intraepithelial neoplasia; Neoplasms,squamous cell; In situ hybridization,fluorescence; Gene amplification; Telomerase" @default.
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- W75277777 date "2011-03-01" @default.
- W75277777 modified "2023-09-24" @default.
- W75277777 title "[Detection of TERC gene amplification by fluorescence in-situ hybridization in cervical intraepithelial lesions]." @default.
- W75277777 doi "https://doi.org/10.3760/cma.j.issn.0529-5807.2011.03.010" @default.
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