端粒酶活性在宫颈癌中的表达及意义

目的：探讨端粒酶活化在宫颈癌发生、发展中的作用。方法：采用端粒重复序列扩增法对40例宫颈癌、50例宫颈上皮内瘤样病变（cervical intraepithelial neoplasia,CIN）、20例正常宫颈组织中端粒酶活性进行检测。结果：端粒酶活性在宫颈癌、CIN、正常宫颈组织中的阳性表达率分别为95.0％、44.0％、10.0％，各组间比较P＜0.01；端粒酶活性阳性率在CINⅠ、Ⅱ、Ⅲ各级病变中分别为22.2％、37.5％、75.0％，CINⅠ、Ⅱ与CINⅢ间比较P＜0.01。结论：端粒活性可能与宫颈癌发生有关，与宫颈病变级别呈正相关。

Expression and Significance of Telomerase Activity in Cervical Cancer

Objective: Our aim was to study the role of telomerase activation in the course of cervical carcinogenesis and progression.Methods:Telomeric repeat amplification protocol(TRAP) assay was used to measure telomerase activity in tissue samples with various cervical conditions:40 with cervical cancer, 50 with cervical intraepithelial neoplasia(CIN), 20 with normal cervice. Results:The positive rate of telomerase activity was 95.0%,44.0%, and 10.0% in cervical cancer, CIN, and normal cervices, respectively, which was significantly higher in cervical cancer than that in CIN and normal cervices, so was that in CIN than that in normal cervices (P<0.01) . The positive rate was 22.2%, 37.5%, and 75.0% in CINⅠ,Ⅱ, and Ⅲ, respectively, which was significantly higher in CINⅢ than that in CIN Ⅱand CINⅠ (P<0.01).Conclusion:Telomerase activation may relate to cervical carcinogenesis, which correlates well with the grade of cervical lesions.