Effect of insulin-like growth factor-1 (IGF-1) on the gluconeogenesis in calf hepatocytes cultured in vitro

被引：17
|
作者：
Wang, Jianguo [1 ]
Zhu, Xiaoyan [1 ]
Chen, Chengzhen [2 ]
Li, Xiaobing [1 ]
Gao, Yan [2 ]
Li, Peng [1 ,3 ]
Zhang, Yi [3 ]
Long, Miao [3 ]
Wang, Zhe [1 ]
Liu, Guowen [1 ]
机构：
[1] Jilin Univ, Coll Anim Sci & Vet Med, Changchun 130062, Peoples R China
[2] Jilin Univ, Lab Anim Ctr, Changchun 130062, Peoples R China
[3] Shenyang Agr Univ, Coll Anim Sci & Vet Med, Shenyang 110161, Peoples R China
来源：
MOLECULAR AND CELLULAR BIOCHEMISTRY | 2012年 / 362卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
IGF-1; PC; PEPCK; Hepatocyte; DAIRY-COWS; PHOSPHOENOLPYRUVATE CARBOXYKINASE; MESSENGER-RNA; TRANSITION; EXPRESSION; LACTATION; HORMONE; ENZYMES; LIVER;
D O I：
10.1007/s11010-011-1130-9
中图分类号：
Q2 [细胞生物学];
学科分类号：
071009 ; 090102 ;
摘要：
The major role of insulin-like growth factor-1 (IGF-1) in the liver is to mediate glucose uptake in hepatocytes to synthesize glycogen and maintain blood glucose homeostasis. In this study, to evaluate the role of IGF-1 on gluconeogenesis and nutrient metabolism in dairy cattle, pyruvate carboxylase (PC) and phosphoenolpyruvate carboxykinase (PEPCK) expression and enzyme activity were evaluated in primary cultures of bovine hepatocytes treated with different concentrations of IGF-1 by quantitative polymerase chain reaction and spectrophotometry, respectively. The results showed that expression of PC and PEPCK were significantly lower in bovine hepatocytes by IGF-1 treatment in test group compare to the control group (P < 0.01). As IGF-1 concentration increased, PC and PEPCK enzyme activity in bovine hepatocytes decreased. Evaluating PC and PEPCK mRNA levels and enzyme activity may thus be useful to monitor subclinical ketosis in dairy cows.
引用
收藏
页码：87 / 91
页数：5
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