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题目:: Microsatellite instability and expression of mismatch repair genes in sporadic endometrial cancer coexisting with colorectal or breast cancer.
作者:: Takano(Katsumi),Ichikawa(Yoshihito),Ueno(Ei),Ohwada(Michitaka),Suzuki(Mitsuaki),Tsunoda(Hajime),Miwa(Masanao),Uchida(Kazuhiko),Yoshikawa(Hiroyuki)
状态:: 发布时间2004-12-07 , 更新时间 2016-11-24
期刊:: Oncol Rep
摘要:: The molecular background of sporadic endometrial cancer coexisting with colorectal or breast cancer is not clear. We investigated microsatellite instability (MSI) and status of mismatch repair (MMR) gene product, MLH1, MSH2 and MSH6, in 63 sporadic endometrial cancers coexisting with colorectal or breast cancer. Sixteen sporadic endometrial cancers with colorectal cancers (EC), 26 sporadic endometrial cancers with breast cancer (EB) and 21 endometrial cancers without a coexisting cancer (control) were analyzed. EC had the highest frequency of MSI among the 3 groups (EC, 69%; EB, 23%; and control, 43%). Incidence of low-frequency MSI was significantly higher in EC (38%). Among endometrial cancer cases diagnosed before age 50, all high-frequency MSI (MSI-H) cases belonged to EC. Interestingly, incidence of MSI-H was significantly higher in tamoxifen-non-treated cases (75%) than that of treated cases (14%). These results suggest that alterations in MMR genes appear to be involved in carcinogenesis of EC but seem to be uncommon in those of EB. Presence of MSI in sporadic endometrial cancer may be a useful marker to predict the risk of colorectal cancer.
语言:: eng
DOI:

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