Cyclin D1 overexpression correlates with poor tumor differentiation and prognosis in gastric cancer

doi:10.3892/ol.2017.6736

CNU IR > College of Smart Living > Dept. of Senior Service and Health Management > Periodical Articles > Item 310902800/31741

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/31741

Title:	Cyclin D1 overexpression correlates with poor tumor differentiation and prognosis in gastric cancer
Authors:	Shan, Yan-Shen Hsu, Hui-Ping Lai, Ming-Derg Hung, Yu-Hsuan Wang, Chih-Yang Yen, Meng-Chi Chen, Yi-Ling
Contributors:	Natl Cheng Kung Univ,Natl Cheng Kung Univ Hosp, Coll Med, Dept Surg Natl Cheng Kung Univ,Natl Cheng Kung Univ Hosp, Coll Med, Dept Biochem & Mol Biol Kaohsiung Med Univ,Kaohsiung Med Univ Hosp, Dept Emergency Med Chia Nan Univ Pharm & Sci, Senior Citizen Dev Ctr
Keywords:	gastric cancer cyclin D1 histological type overall survival progression-free survival
Date:	2017-10
Issue Date:	2018-11-30 15:54:57 (UTC+8)
Publisher:	Spandidos Publ Ltd
Abstract:	Overexpression of cyclin D is associated with the molecular tumorigenesis of gastric cancer. The purpose of the present study was to investigate the expression of cyclin D in human gastric cancer and to determine the potential correlations between cyclin D expression and clinicopathological characteristics of specific histological types, as well as its prognostic significance. In the present study, the expression of the cyclin D1 (CCND1), cyclin D2 (CCND2) and cyclin D3 (CCND3) genes in gastric cancer patients was explored using the Oncomine database, and their correlation with overall survival (OS) and progression-free survival (PFS) was evalua-ted using Kaplan-Meier analysis. The prognostic significance of CCND1 protein expression was evaluated by western blot analysis of 32 matched specimens of gastric adenocarcinomas and normal tissues obtained from patients treated at the National Cheng Kung University Hospital (Tainan, Taiwan). Analysis of the Oncomine cancer microarray database revealed that CCND1 gene expression was significantly increased in gastric intestinal-type adenocarcinoma, while CCND2 was significantly increased in diffuse gastric adenocarcinoma, gastric intestinal-type adenocarcinoma and gastric mixed adenocarcinoma. Kaplan-Meier analysis indicated that overexpression of CCND1 was associated with reduced OS and PFS. In addition, overexpression of CCND1 and downregulation of CCND2 were significantly correlated with receptor tyrosine-protein kinase erb-2-negative tumors and poor differe-ntiation. The ratio of relative CCND1 expression (expressed as the CCND1/beta-actin ratio) in tumor tissues compared with that in normal tissues was correlated with poor differentiation (P=0.0018). In summary, CCND1 overexpression is associated with shorter survival in patients with gastric cancer and with poorly differentiated tumors.
Relation:	Oncology Letters, v.14, n.4, pp.4517-4526
Appears in Collections:	[Dept. of Senior Service and Health Management] Periodical Articles

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