Title : Fatty acids rapidly induce the carnitine palmitoyltransferase I gene in the pancreatic beta-cell line INS-1.

Pub. Date : 1997 Jan 17

PMID : 8999842






9 Functional Relationships(s)
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1 Fatty acids rapidly induce the carnitine palmitoyltransferase I gene in the pancreatic beta-cell line INS-1. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
2 We have therefore studied the regulation of carnitine palmitoyltransferase I (CPT I) gene expression by fatty acids in the pancreatic beta-cell line INS-1 since this enzyme catalyzes the limiting step of fatty acid oxidation in various tissues. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
3 We have therefore studied the regulation of carnitine palmitoyltransferase I (CPT I) gene expression by fatty acids in the pancreatic beta-cell line INS-1 since this enzyme catalyzes the limiting step of fatty acid oxidation in various tissues. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
4 We have therefore studied the regulation of carnitine palmitoyltransferase I (CPT I) gene expression by fatty acids in the pancreatic beta-cell line INS-1 since this enzyme catalyzes the limiting step of fatty acid oxidation in various tissues. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
5 We have therefore studied the regulation of carnitine palmitoyltransferase I (CPT I) gene expression by fatty acids in the pancreatic beta-cell line INS-1 since this enzyme catalyzes the limiting step of fatty acid oxidation in various tissues. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
6 It was detectable after 1 h and reached a maximum after 3 h. The induction of CPT I mRNA by fatty acids did not require their oxidation, and 2-bromopalmitate, a nonoxidizable fatty acid, increased CPT I mRNA to the same extent as palmitate. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
7 It was detectable after 1 h and reached a maximum after 3 h. The induction of CPT I mRNA by fatty acids did not require their oxidation, and 2-bromopalmitate, a nonoxidizable fatty acid, increased CPT I mRNA to the same extent as palmitate. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
8 The half-life of the CPT I transcript was unchanged by fatty acids, and nuclear run-on analysis showed a rapid (less than 45 min) and pronounced transcriptional activation of the CPT I gene by fatty acids. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus
9 The results indicate that the CPT I gene is an early response gene induced by fatty acids at the transcriptional level in beta- (INS-1) cells. Fatty Acids carnitine palmitoyltransferase 1B Rattus norvegicus