MDM2蛋白和MDM2 mRNA在尖锐湿疣中的表达

目的 研究尖锐湿疣中MDM2蛋白及MDM2 mRNA的表达情况,探讨MDM2在尖锐湿疣增殖及癌变中的作用。方法 分别采用免疫组化染色及原位杂交方法检测外阴尖锐湿疣和正常人皮肤组织中MDM2蛋白及mRNA的表达情况,同时用PCR法检测人乳头瘤病毒(HPV)型别。结果 32例外阴尖锐湿疣中MDM2蛋白阳性表达18例(56.25%),MDM2 mRNA阳性表达22例(68.75%)。MDM2蛋白与mRNA共同阳性表达14例。PCR检测示尖锐湿疣皮损中HPV6/11型28例(87.5%),HPV16/18型4例(12.5%)。在18例MDM2蛋白阳性表达的标本中,HPV6/11型15例,HPV16/18型3例。在22例MDM2 mRNA阳性表达的标本中,HPV6/11型18例,HPV16/18型4例。而正常人皮肤中MDM2蛋白及MDM2 mRNA均未见表达。结论 MDM2的异常表达可能与尖锐湿疣过度增殖及癌变有关。

Expression of MDM2 Protein and MDM2 mRNA in Condyloma Acuminatum

Objective To investigate the role of MDM2in the cell proliferation and carcinogenesis in condyloma acuminatum(CA).Methods The technique of immunohistochemistry and in situ hybridization were used to detect the expression of MDM2protein and mRNA in skin lesions of CA and normal skin of genital area.Polymerase-chain reaction(PCR)was used to type HPV DNA.Results Out of32CA specimens,the expression of MDM2protein was found in18(56.25%),the expression of MDM2mRNA was found in22(68.75%),while co-expression of MDM2protein and MDM2mRNA was found in14.According to PCR results,HPV6/11subtype was shown in28out of32CA specimens(87.5%),and HPV16/18subtype was shown in4out of32(12.5%).In eighteen out of positive specimens expressing MDM2protein,HPV6/11subtype was shown in15and HPV16/18subtype3.In twenty-two positive specimens expressing MDM2mRNA,there were HPV6/11subtype in18,and4were HPV16/18subtype.No expression of MDM2protein and MDM2mRNA was observed in normal skin.Conclusion The overexpression of MDM2may be involved in malignant proliferation and carcinomatous change of condyloma acuminatum.