共 50 条
CacyBP/SIP Protein Promotes Proliferation and G1/S Transition of Human Pancreatic Cancer Cells
被引:27
作者:
Chen, Xiong
[1
,2
]
Mo, Ping
[1
,2
]
Li, Xiaohua
[1
,2
]
Zheng, Peichan
[3
]
Zhao, Lina
[1
,2
]
Xue, Zengfu
[1
,2
]
Ren, Gui
[1
,2
]
Han, Guohong
[1
,2
]
Wang, Xin
[1
,2
]
Fan, Daiming
[1
,2
]
机构:
[1] Fourth Mil Med Univ, State Key Lab Canc Biol, Xian 710032, Shaanxi, Peoples R China
[2] Fourth Mil Med Univ, Xijing Hosp Digest Dis, Xian 710032, Shaanxi, Peoples R China
[3] Peoples Hosp Fujian Prov, Dept Clin Lab, Fuzhou, Fujian, Peoples R China
基金:
中国国家自然科学基金;
关键词:
CacyBP/SIP;
proliferation;
cell cycle;
pancreatic cancer;
BINDING-PROTEIN;
SIGNALING PATHWAY;
CALCYCLIN;
EXPRESSION;
PROSTATE;
APOPTOSIS;
RECEPTOR;
DIFFERENTIATION;
TARGET;
GROWTH;
D O I:
10.1002/mc.20737
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Calcyclin-binding protein or Siah-1-interacting protein (CacyBP/SIP), a component of the ubiquitin-mediated proteolysis, could participate in beta-catenin degradation, which was found to be related to the malignant phenotypes of pancreatic cancer previously. However, the role of CacyBP/SIP itself in pancreatic cancer has not been investigated. In the present study, CacyBP/SIP expression was assayed and manipulated to reveal the potential mechanism in pancreatic cancer carcinogenesis. Here, we show that CacyBP/SIP is over-expressed in pancreatic cancer cells. Down-regulation of CacyBP/SIP by small interference RNA (siRNA) severely suppresses the proliferation and tumorigenesis in pancreatic cancer. G1/S transition arrest induced by inhibition of CacyBP/SIP is at least partly mediated by down-regulation of Cyclin E and CDK2 as well as up-regulation of p27 and Rb. Collectively, CacyBP/SIP as an enhancer of pancreatic cancer malignance might develop into another possible therapeutic target. (C) 2011 Wiley-Liss, Inc.
引用
收藏
页码:804 / 811
页数:8
相关论文
共 50 条