https://scholars.lib.ntu.edu.tw/handle/123456789/569220
標題: | MDM2 expression in areca quid chewing-associated oral squamous cell carcinomas in Taiwan | 作者: | Huang J.-S. Ho T.-J. CHUN-PIN CHIANG SANG-HENG KOK Kuo Y.-S. YEN-PING KUO |
公開日期: | 2001 | 卷: | 30 | 期: | 1 | 起(迄)頁: | 53-58 | 來源出版物: | Journal of Oral Pathology and Medicine | 摘要: | MDM2 (murine double minute gene 2) overexpression has been implicated in the pathogenesis of human tumors via inhibition of the p53 tumor suppressor protein. To investigate the potential involvement of MDM2 overexpression in the pathogenesis of oral squamous cell carcinomas (SCCs) in Taiwan, we examined the expression of MDM2 protein and its relationship to p53 protein levels in 52 oral SCCs using antibodies to MDM2 and p53. Of the 52 patients, 36 (69 %) had tumors with positive MDM2 nuclear staining and 32 (61%) had tumors with p53 nuclear staining. Co-expression of MDM2 protein and p53 was detected in 25 (48%) cases; and 9 (17%) tumors showed neither MDM2 protein nor p53 staining. A significant correlation was observed between MDM2 protein and p53 expression in 38 cases with an areca quid (AQ) chewing habit (P=0.032). No significant correlation was found between the degree of MDM2 protein staining and the patients' ages, sex, cancer location, clinical staging, primary tumor TNM status or histological differentiation of SCC at the time of initial presentation. Kaplan-Meier analysis showed that either MDM2 protein expression or co-expression of p53 and MDM2 protein did not relate significantly to patient overall survival. Nevertheless, the high prevalence of MDM2 protein overexpression found in this study suggest that MDM2 may also participate in the carcinogenesis of AQ chewing-associated oral SCCs in Taiwan. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035173129&doi=10.1034%2fj.1600-0714.2001.300109.x&partnerID=40&md5=6f03ff31e79a23ae0af1ddf9f25d8494 https://scholars.lib.ntu.edu.tw/handle/123456789/569220 |
ISSN: | 0904-2512 | DOI: | 10.1034/j.1600-0714.2001.300109.x | SDG/關鍵字: | MDM2 protein, human; nuclear protein; oncoprotein; protein MDM2; protein p53; tumor protein; adult; aged; article; betel nut; biosynthesis; drug antagonism; enzyme immunoassay; female; genetics; human; male; medicinal plant; metabolism; middle aged; mortality; mouth tumor; mutation; squamous cell carcinoma; survival; Taiwan; tumor suppressor gene; Adult; Aged; Areca; Carcinoma, Squamous Cell; Female; Genes, p53; Humans; Immunoenzyme Techniques; Male; Middle Aged; Mouth Neoplasms; Mutation; Neoplasm Proteins; Nuclear Proteins; Plants, Medicinal; Proto-Oncogene Proteins; Proto-Oncogene Proteins c-mdm2; Survival Analysis; Taiwan; Tumor Suppressor Protein p53 |
顯示於: | 牙醫學系 |
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