Abstract:
:We explored the role of the recently discovered "early growth response gene-1 (Egr-1)" in the induction of myocardial protein synthesis by endothelin-1. Endothelin-1 stimulated protein synthesis (i.e. 3H-phenylalanine incorporation) in isolated adult rat cardiomyocytes more than 2-fold. Addition of a 15mer Egr-1 antisense oligodeoxyribonucleotide complementary to the first 5 codons of the Egr-1 mRNA completely blocked endothelin-induced protein synthesis. A single base mismatch in the oligonucleotide sequence abolished the inhibitory effect. T3-induced stimulation of protein synthesis was unaffected by the antisense oligonucleotide. These results indicate that the Egr-1 gene product is involved (putatively as a third messenger) in the signal transduction cascade initiated by endothelin-1 which eventually culminates in the induction of cardiac protein synthesis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Neyses L,Nouskas J,Vetter Hdoi
10.1016/s0006-291x(05)81376-2subject
Has Abstractpub_date
1991-11-27 00:00:00pages
22-7issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)81376-2journal_volume
181pub_type
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journal_title:Biochemical and biophysical research communications
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