MCM2在宫颈病变组织中的表达及意义  被引量:5

The Expression and Significance of MCM2 in Cervical Lesions

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作  者:汪志辉[1] 生秀杰[1] 

机构地区:[1]广州医科大学附属第三医院,广东广州510150

出  处:《实用妇产科杂志》2014年第4期284-287,共4页Journal of Practical Obstetrics and Gynecology

基  金:广东省科技计划项目(编号:2011B050300020)

摘  要:目的:通过检测微小染色体维持蛋白2(MCM2)在不同级别宫颈病变组织中的表达,探讨其在宫颈病变发展中的意义。方法:收集宫颈石蜡标本122例,采用免疫组化SP法检测MCM2在不同级别宫颈病变组织、不同细胞学及HPV结果中的表达情况。结果:MCM2阳性着色于细胞核。MCM2在宫颈组织中阳性表达分别为正常组织1例(5.00%)、CINI9例(45.00%)、CINⅡ~Ⅲ32例(76.19%)、浸润癌40例(100.00%),其表达阳性率随着宫颈病变恶性程度的增加而升高,各组间比较差异有统计学意义(χ^2=60.65,P〈0.001)。在细胞学水平,MCM2的阳性表达分别为无宫颈上皮内瘤变(NILM)1例(5.00%)、不典型鳞状上皮细胞(ASCUS)6例(50.00%)、低度鳞状上皮内病变(LSIL)13例(59.09%)、不典型鳞状上皮不除外高度鳞状上皮内病变(ASC-H)26例(86.67%)、高度鳞状上皮内病变(HISL)36例(94.74%),其表达阳性率随着细胞学恶性程度增加而升高,各组间比较差异有统计学意义(χ^2=55.61,P〈0.001)。73例HPV阳性患者中,MCM2表达阳性率为79.45%(58/73),而49例HPV阴性患者中,MCM2表达阳性率48.98%(24/49),两组比较差异有统计学意义(χ^2=12.35,P〈0.05),且MCM2的表达与HPV感染呈正相关(r=0.75)。结论:MCM2随宫颈病变恶性程度的增高表达升高,在宫颈癌呈高表达。MCM2的高表达可能与宫颈癌发生有关。Objective:To discuss the expression MCM2 in different cervical lesion and to explore the clini- cal significance of MCM2 in the development of cervical disease. Methods:122 cases cervical paraffins sam- ples were collected,and the expression of MCM2 were detected by immunohistochemistry. Results:The lo- cation of MCM was in the nucleus. The positive rates of MCM2 were normal 1 (5.00%) 、CIN Ⅰ 9 (45.00%), CIN Ⅱ - Ⅲ32 (76. 19% ) ,cancer 40( 100.00% ), respectively, and the expression of MCM2 became higher gradually with the malignant degree increased, and the difference among the groups was statistically signifi- cant( X2 = 60. 65, P 〈 0. 001 ) ; and NILM 1 (5.00%) 、 ASCUS 6 ( 50. 00% ) 、 LSIL13 ( 59. 09% ) 、ASC-H 26 (86.67%) 、HISL 36(94.74% ), respectively, and the expression of MCM2 became higher gradually with the malignant degree increased, and the difference among the groups was statistically significant (X2 = 55. 61, P 〈0. 001 ). The MCM2 positive rate was 79.45% in 73 HPV positive patients while 48.98% in 49 HPV neg- ative ones, there was significant difference on the MCM2 positive rate between the two groups(X2 = 12.35, P 〈 0.05), and the expression of MCM2 was positively related with HPV infection (r = 0.75). Conclusions= The expression of MCM2 became higher gradually with the malignant degree increased. The high expression of MCM2 may be related to the onset of cervical cancer.

关 键 词:宫颈癌 人乳头瘤病毒 微小染色体维持蛋白2 

分 类 号:R711.74[医药卫生—妇产科学]

 

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