MONENSIN AND FORSKOLIN INHIBIT THE TRANSCRIPTION RATE OF SUCRASE-ISOMALTASE BUT NOT THE STABILITY OF ITS MESSENGER-RNA IN CACO-2 CELLS

被引:14
作者
CHANTRET, I
LACASA, M
CHEVALIER, G
SWALLOW, D
ROUSSET, M
机构
[1] IRSC,VIRUS & DIFFERENCIAT LAB,F-94800 VILLEJUIF,FRANCE
[2] UNIV PARIS 06,F-75230 PARIS 05,FRANCE
[3] UNIV LONDON UNIV COLL,MRC,GALTON LAB,HUMAN BIOCHEM GENET UNIT,LONDON NW1 2HE,ENGLAND
关键词
SUCRASE ISOMALTASE; CACO-2; CELL; FORSKOLIN; MONENSIN; TRANSCRIPTION; GLUCOSE REPRESSION;
D O I
10.1016/0014-5793(93)80964-V
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
Treatment of Caco-2 cells with forskolin (25 muM) or monensin (I muM) has previously been shown to cause a marked decrease in the level of sucrase-isomaltase (SI) mRNA, without any effect on the expression of dipeptidylpeptidase IV (DPP-IV). In the present work, we report that there is no significant difference in the stability of SI mRNA between control and treated cells. On the other hand, we demonstrate a decrease in the transcription rate of SI mRNA which is sufficient to account for the decrease in the steady-state level of SI mRNA both in forskolin- and monensin-treated Caco-2 cells.
引用
收藏
页码:55 / 58
页数:4
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