Alterations of frizzled (FzE3) and secreted frizzled related protein (hsFRP) expression in gastric cancer
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摘要Wnt signaling, pathway is important for development and carcinogenesis. Alterations of this pathway, such as mutations in adenomatous polyposis coli (APC) gene and activation mutations of beta -catenin, would result in stabilization of beta -catenin and subsequent translocation to nucleus where genes are transcribed. Recently, a receptor of Wnt, FzE3 was found to be up-regulated in esophageal carcinoma while a non-receptor antagonist of Writ, secreted frizzled related protein (hsFRP) was found to be down-regulated in some cancer. These findings suggested that FzE3 is a potential oncogene while hsFRP is a potential tumor suppressor gene. We aimed to investigate whether FzE3 and hsFRP were altered in gastric cancer. Twelve cases of gastric cancer, including 7 cases of intestinal type, 4 cases of diffuse type and 1 case of mixed type, were studied. FzE3 and hsFRP mRNAs were expressed in most of the paired normal gastric tissues. FzE3 was over-expressed in 9 cases (75%) of gastric carcinoma tissues while hsFRP was down-regulated in 2 cases (16%). beta -catenin nuclear staining was identified in 3 cases (27%) and cyclin D1 was expressed in 5 cases (41%) of cancer samples. All these cases were associated with either up-regulation of FzE3 or down-regulation of hsFRP. Our results suggested that alterations of FzE3 or hsFRP were frequent in gastric cancer. These provide alternative mechanisms leading to activation of Writ signaling pathway in gastric carcinogenesis. (C) 2001 Elsevier Science Inc. Ail rights reserved.
著者To KF, Chan MWY, Leung WK, Yu J, Tong JHM, Lee TL, Chan FKL, Sung JJY
期刊名稱Life Sciences
出版年份2001
月份12
日期14
卷號70
期次4
出版社PERGAMON-ELSEVIER SCIENCE LTD
頁次483 - 489
國際標準期刊號0024-3205
電子國際標準期刊號1879-0631
語言英式英語
關鍵詞beta-catenin; frizzled protein; frizzled related protein; gastric cancer
Web of Science 學科類別Medicine, Research & Experimental; MEDICINE, RESEARCH & EXPERIMENTAL; Pharmacology & Pharmacy; PHARMACOLOGY & PHARMACY; Research & Experimental Medicine

上次更新時間 2020-03-08 於 02:24