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《Journal of Clinical Otorhinolaryngology Head and Neck Surgery》 2011-07
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Study on the expression and clinical significance of MMP9 and MVD in the external auditory canal and middle ear squamous cell carcinoma

LIU Xiang1 WANG Wuqing2 CHEN Jianfu3 CHEN Chongxi1 ZHOU Jing1(1Department of Otolaryngology,the Third Affiliated Hospital of Wenzhou Medical College,Wenzhou,325200,China;2Department of Otolaryngology Head and Neck Surgery,Eye Ear Nose and Thorat Hospital,Fudan University,Shanghai;3Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Wenzhou Medical College)  
Objective:To investigate the expression and clinical significance of MMP9 and MVD in the carcinogenesis of squamous cell carcinoma of external auditory canal and middle ear.Method:Immunohistochemical SP method was used to detect the expression of MMP9 and MVD proteins in 26 squamous cell carcinoma tissues of external auditory canal and middle ear and 20 normal external ear canal skin tissues.Result:The positive rate of MMP9 in squamous cell carcinoma tissues of external auditory canal and middle ear was 73.1%(19/26) lower than that in the normal external ear canal skin tissues 25.0%(5/20).The positive rates of CD34 were 33.58±3.04 and 22.50±5.22,respetively.The positive rates of MMP9 and CD34 were correlated with the histological grade and tumor grade,but had no relationship with age and sex.The positive rates between MMP9 and CD34 were related(r=0.42,P0.05).Conclusion:MMP9 may be involved in the carcinogenesis of squamous cell carcinoma of external auditory canal and middle ear,and may play an important role in the invasion and metastasis of squamous cell carcinoma of external auditory canal and middle ear.MMP9 and CD34 play a cooperative role in the process of squamous cell carcinoma of external auditory canal and middle ear.
【Fund】: 浙江省温州市科技计划项目(No:Y20100019)
【CateGory Index】: R739.61
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