共 33 条
Ptpn11/Shp2 Acts as a Tumor Suppressor in Hepatocellular Carcinogenesis
被引:305
作者:
Bard-Chapeau, Emilie A.
[1
,2
,3
]
Li, Shuangwei
[1
,2
]
Ding, Jin
[4
]
Zhang, Sharon S.
[1
,2
]
Zhu, Helen H.
[1
,2
]
Princen, Frederic
[3
]
Fang, Diane D.
[1
,2
]
Han, Tao
[4
]
Bailly-Maitre, Beatrice
[3
]
Poli, Valeria
[5
]
Varki, Nissi M.
[1
,2
]
Wang, Hongyang
[4
]
Feng, Gen-Sheng
[1
,2
,4
]
机构:
[1] Univ Calif San Diego, Dept Pathol, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Div Biol Sci, La Jolla, CA 92093 USA
[3] Sanford Burnham Med Res Inst, La Jolla, CA 92037 USA
[4] Second Mil Med Univ, Eastern Hepatobiliary Surg Hosp, Lab Signal Transduct, Shanghai 200433, Peoples R China
[5] Univ Turin, Dept Genet Biol & Biochem, I-10126 Turin, Italy
来源:
关键词:
SHP-2 TYROSINE PHOSPHATASE;
BREAST-CANCER;
CELLS;
INFLAMMATION;
MUTATIONS;
STAT3;
DIFFERENTIATION;
ACTIVATION;
EXPRESSION;
ONCOGENES;
D O I:
10.1016/j.ccr.2011.03.023
中图分类号:
R73 [肿瘤学];
学科分类号:
100214 ;
摘要:
The human gene Ptpn11, which encodes the tyrosine phosphatase Shp2, may act as a proto-oncogene because dominantly activating mutations have been detected in several types of leukemia. Herein we report a tumor-suppressor function of Shp2. Hepatocyte-specific deletion of Shp2 promotes inflammatory signaling through the Stat3 pathway and hepatic inflammation/necrosis, resulting in regenerative hyperplasia and development of tumors in aged mice. Furthermore, Shp2 ablation dramatically enhanced diethylnitrosamine (DEN)-induced hepatocellular carcinoma (HCC) development, which was abolished by concurrent deletion of Shp2 and Stat3 in hepatocytes. Decreased Shp2 expression was detected in a subfraction of human HCC specimens. Thus, in contrast to the leukemogenic effect of dominant-active mutants, Ptpn11/Shp2 has a tumor-suppressor function in liver.
引用
收藏
页码:629 / 639
页数:11
相关论文