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表皮生长因子(EGF)对分离的大鼠肝细胞中ATP柠檬酸裂解酶活性的刺激作用具有年龄依赖性。

Epidermal growth factor (EGF) stimulation of ATP citrate lyase activity in isolated rat hepatocytes is age dependent.

作者信息

Emmerson K, Roehrig K

机构信息

Department of Food Science and Technology, The Ohio State University, Columbus 43210.

出版信息

Comp Biochem Physiol B. 1992 Nov;103(3):663-7. doi: 10.1016/0305-0491(92)90387-7.

DOI:10.1016/0305-0491(92)90387-7
PMID:1458840
Abstract
  1. The effect of epidermal growth factor (EGF) on ATP citrate lyase activity was determined in freshly isolated hepatocytes from rats of different ages as a function of incubation time, EGF concentration and hepatocyte density. 2. The activity of this enzyme was responsive to both dose and time of incubation of EGF with a two-fold increase in ATP citrate lyase activity and a half-maximal effect between 10(-12) and 10(-11) M. 3. EGF effects were detectable by 5 min. 4. The age of the rats had a strong effect on the magnitude of the EGF effect with ATP citrate lyase activity in younger (8 weeks) rats being more responsive than in older (14 weeks) rats.
摘要
  1. 测定了表皮生长因子(EGF)对不同年龄大鼠新鲜分离肝细胞中ATP柠檬酸裂解酶活性的影响,该影响是孵育时间、EGF浓度和肝细胞密度的函数。2. 该酶的活性对EGF孵育的剂量和时间均有反应,ATP柠檬酸裂解酶活性增加两倍,在10(-12)至10(-11)M之间达到半数最大效应。3. 5分钟时可检测到EGF的作用。4. 大鼠年龄对EGF作用的幅度有强烈影响,较年轻(8周)大鼠的ATP柠檬酸裂解酶活性比年长(14周)大鼠对EGF更敏感。

相似文献

1
Epidermal growth factor (EGF) stimulation of ATP citrate lyase activity in isolated rat hepatocytes is age dependent.表皮生长因子(EGF)对分离的大鼠肝细胞中ATP柠檬酸裂解酶活性的刺激作用具有年龄依赖性。
Comp Biochem Physiol B. 1992 Nov;103(3):663-7. doi: 10.1016/0305-0491(92)90387-7.
2
Effect of transforming growth factor beta (TGF-beta) on ATP citrate lyase in isolated hepatocytes.转化生长因子β(TGF-β)对分离肝细胞中ATP柠檬酸裂解酶的影响。
Mol Cell Biochem. 1987 Oct;77(2):121-5. doi: 10.1007/BF00221920.
3
Both insulin and epidermal growth factor stimulate fatty acid synthesis and increase phosphorylation of acetyl-CoA carboxylase and ATP-citrate lyase in isolated hepatocytes.胰岛素和表皮生长因子均可刺激脂肪酸合成,并增加分离肝细胞中乙酰辅酶A羧化酶和ATP-柠檬酸裂解酶的磷酸化。
FEBS Lett. 1985 Feb 25;181(2):308-12. doi: 10.1016/0014-5793(85)80282-9.
4
Phosphorylation of ATP citrate lyase in response to glucagon.响应胰高血糖素时ATP柠檬酸裂解酶的磷酸化作用
J Biol Chem. 1979 Oct 10;254(19):9365-8.
5
Insulin-stimulated phosphorylation of ATP-citrate lyase in isolated hepatocytes. Stoichiometry and relation to the phosphoenzyme intermediate.胰岛素刺激分离肝细胞中ATP-柠檬酸裂解酶的磷酸化。化学计量及其与磷酸化酶中间体的关系。
J Biol Chem. 1982 Feb 25;257(4):2049-55.
6
The role of the cyclic AMP-dependent protein kinase in the glucagon-stimulated phosphorylation of ATP-citrate lyase.环磷酸腺苷依赖性蛋白激酶在胰高血糖素刺激的ATP-柠檬酸裂解酶磷酸化中的作用。
Biochim Biophys Acta. 1981 Apr 17;674(1):37-47. doi: 10.1016/0304-4165(81)90344-5.
7
Dependence of ATP citrate lyase activity on cell density of isolated rat hepatocytes.ATP柠檬酸裂解酶活性对分离的大鼠肝细胞细胞密度的依赖性。
Biochem Biophys Res Commun. 1987 Nov 30;149(1):118-24. doi: 10.1016/0006-291x(87)91612-3.
8
The role of ATP citrate-lyase in the metabolic regulation of plasma lipids. Hypolipidaemic effects of SB-204990, a lactone prodrug of the potent ATP citrate-lyase inhibitor SB-201076.ATP柠檬酸裂解酶在血浆脂质代谢调节中的作用。强效ATP柠檬酸裂解酶抑制剂SB - 201076的内酯前药SB - 204990的降血脂作用。
Biochem J. 1998 Aug 15;334 ( Pt 1)(Pt 1):113-9. doi: 10.1042/bj3340113.
9
Effects of phosphorylation on the kinetic properties of rat liver ATP-citrate lyase.磷酸化对大鼠肝脏ATP-柠檬酸裂解酶动力学性质的影响。
Biochim Biophys Acta. 1985 Feb 21;844(2):233-9. doi: 10.1016/0167-4889(85)90095-3.
10
Epidermal growth factor stimulated phosphorylation of a 120-kilodalton endogenous substrate protein in rat hepatocytes.
Biochemistry. 1990 Oct 9;29(40):9489-94. doi: 10.1021/bi00492a023.

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