中文摘要：

目的探讨转录因子KLF4在宫颈鳞癌中的表达及意义。方法采用组织微阵列结合免疫组织化学方法研究39例宫颈鳞癌、28例宫颈原位癌、30例正常宫颈组织中KLF4蛋白的表达及其与临床病理因素间的关系。结果KLF4蛋白在正常宫颈组织与宫颈原位癌中的表达均为阳性,在宫颈鳞癌组织中表达显著下调（P〈0.05）;KLF4蛋白的表达与临床病理因素不相关。结论KLF4可能作为一个抑癌基因与宫颈鳞癌的发生有关。

英文摘要：

Objective To investigate the expression of KLF4 in cervical carcinoma and its significance. Methods Immunohistochemistry and tissue microarray were used to examine the expression of KLF4 in 39 cases of carcinoma, 30 cases of normal cervical epithelial tissues and 28 cases of cervical cancer in situ. Results Moderate to strong nuclear staining for KLF4 was found in normal tissues and cervical cancer in situ. Interestingly, KLF4 expression was lost in 16 （P〈 0.05） of 39 carcinoma cases. However, KLF4 expression was not associated with clinicopathologic parameters, including tumor stage and differentiation. Conclusion Our observations indicate that KLF4 may function as a tumor suppressor in the pathogenesis of cervical cancer.