Glucocorticoid effects on glucose transport and transporter gene expression in L6 muscle cells.

Abstract:

:We questioned whether glucocorticoids alter the known potent effect of serum to increase glucose transport and GLUT-1 expression in cultured L6 myotubes. Myotubes were exposed to serum-free medium for 24h in the presence or absence of 300 nM dexamethasone and subsequently treated for 8h with 10% serum or serum free medium in the continued presence or absence of the glucocorticoid. Dexamethasone did not effect the serum-induced increase in GLUT-1 mRNA. However, dexamethasone increased GLUT-1 mRNA 2-3 fold versus the absence of dexamethasone after serum withdrawal. Dexamethasone also resulted in higher GLUT-1 protein levels and ameliorated the loss of glucose transport activity seen after serum withdrawal.

authors

Sivitz WI,Pasley AM

doi

10.1006/bbrc.1995.1008

subject

Has Abstract

pub_date

1995-01-05 00:00:00

pages

51-6

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(85)71008-X

journal_volume

206

pub_type

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