Title : Enhanced GLUT1 glucose transporter and cytoskeleton gene expression in cultured bovine brain capillary endothelial cells after treatment with phorbol esters and serum.

Pub. Date : 1992 Oct

PMID : 1331679






5 Functional Relationships(s)
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1 Both serum and TPA enhanced cytoplasmic actin and beta-tubulin mRNA levels in cultured cells; the serum effect on cytoskeletal mRNA persisted through at least 24 h of exposure whereas the TPA stimulation was maximal by 2 h of exposure and lost following 8 h. Both serum and TPA increased cytoplasmic actin mRNA levels approximately 2- to 3-fold greater than the increase in beta-tubulin mRNA levels. Tetradecanoylphorbol Acetate actin epsilon 1 Bos taurus
2 Both serum and TPA enhanced cytoplasmic actin and beta-tubulin mRNA levels in cultured cells; the serum effect on cytoskeletal mRNA persisted through at least 24 h of exposure whereas the TPA stimulation was maximal by 2 h of exposure and lost following 8 h. Both serum and TPA increased cytoplasmic actin mRNA levels approximately 2- to 3-fold greater than the increase in beta-tubulin mRNA levels. Tetradecanoylphorbol Acetate actin epsilon 1 Bos taurus
3 Both serum and TPA enhanced cytoplasmic actin and beta-tubulin mRNA levels in cultured cells; the serum effect on cytoskeletal mRNA persisted through at least 24 h of exposure whereas the TPA stimulation was maximal by 2 h of exposure and lost following 8 h. Both serum and TPA increased cytoplasmic actin mRNA levels approximately 2- to 3-fold greater than the increase in beta-tubulin mRNA levels. Tetradecanoylphorbol Acetate actin epsilon 1 Bos taurus
4 Both serum and TPA enhanced cytoplasmic actin and beta-tubulin mRNA levels in cultured cells; the serum effect on cytoskeletal mRNA persisted through at least 24 h of exposure whereas the TPA stimulation was maximal by 2 h of exposure and lost following 8 h. Both serum and TPA increased cytoplasmic actin mRNA levels approximately 2- to 3-fold greater than the increase in beta-tubulin mRNA levels. Tetradecanoylphorbol Acetate actin epsilon 1 Bos taurus
5 In conclusion, these studies show that GLUT1 glucose transporter, cytoplasmic actin, and beta-tubulin mRNA levels in bovine brain capillary endothelial cells are regulated by both serum factors and phorbol ester, which activates the protein kinase C pathway, and that the mechanism of the phorbol ester effect is post-transcriptional. Phorbol Esters actin epsilon 1 Bos taurus