BRAIN-DERIVED PEPTIDES REGULATE THE STEADY-STATE LEVELS AND INCREASE STABILITY OF THE BLOOD-BRAIN-BARRIER GLUT1 GLUCOSE-TRANSPORTER MESSENGER-RNA

被引：33

作者：

BOADO, RJ ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,SCH MED,BRAIN RES INST,LOS ANGELES,CA 90024

来源：

NEUROSCIENCE LETTERS | 1995年 / 197卷 / 03期

关键词：

BLOOD-BRAIN BARRIER; GLUCOSE TRANSPORTER; GLUT1; CEREBROLYSIN; GENE REGULATION; REVERSE TRANSCRIPTION POLYMERASE CHAIN REACTION;

D O I：

10.1016/0304-3940(95)11930-U

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The blood-brain barrier (BBB) GLUT1 glucose transporter gene expression is known to be regulated by putative brain trophic factors. Therefore, the present study investigated the effect of a brain-derived peptide rich preparation containing a neurotrophic factor-like action [Cerebrolysin (Cl), EBEWE, Austria]. In cultures of brain capillary endothelial cells, Cl induced a transient increase in the abundance of BBB-GLUT1 relative to actin measured by reverse transcription-polymerase chain reaction during the first 2 h of incubation, whereas a significant reduction in the GLUT1 transcript was observed at 20 and 48 h. In addition, Cl abolished the fall in GLUT1 levels induced by actinomycin D. The present data suggest that brain-derived factors in Cl are able to modulate the expression of the BBB-GLUT1 gene increasing the BBB-GLUT1 transcript stability.

引用

页码：179 / 182

页数：4

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