PMID: 9535553Apr 16, 1998Paper

Repression of c-fos and c-jun gene expression is not part of AT2 receptor coupled signal transduction

Journal of Molecular Medicine : Official Organ of the Gesellschaft Deutscher Naturforscher Und Ärzte
U M SteckelingsT Unger

Abstract

The signal transduction mechanism coupled to angiotensin AT2 receptors is still a matter of debate. Based on the findings that AT2 receptor stimulation causes inhibition of proliferation, and that other antiproliferative agents such as transforming growth factor-beta, retinoic acid, and MyoD act via repression of immediate early gene (IEG) expression, this study was aimed at elucidating whether downregulation of IEG expression is also part of the AT2 receptor coupled signaling mechanism. Stimulation of angiotensin AT2 receptors in the rat pheochromocytoma cell line PC12 W following pretreatment with growth factors was able to counteract growth factor induced proliferation but not to repress growth factor induced c-fos and c-jun expression; neither did AT2 receptor stimulation cause an induction of c-fos expression. We conclude that, in contrast to other growth-inhibiting agents, the antiproliferative effect of angiotensin II via the AT2 receptor is not mediated by repression of the immediate early genes c-fos and c-jun.

Citations

Apr 6, 2000·The American Journal of Cardiology·B H Lorell
Jun 1, 2001·Regulatory Peptides·M Stoll, T Unger
Jul 8, 1999·Regulatory Peptides·M de Gasparo, H M Siragy
Sep 15, 1998·Kidney International. Supplement·O ChungT Unger
Feb 9, 2002·Arteriosclerosis, Thrombosis, and Vascular Biology·Monika StollThomas Unger
Jul 4, 2006·Physiological Reviews·Martin PaulReinhold Kreutz
Feb 24, 1999·Journal of Cardiovascular Pharmacology·U Stroth, T Unger
Mar 11, 2000·American Journal of Physiology. Endocrinology and Metabolism·S GallinatC Sumners
Mar 7, 2000·Journal of Hypertension·T Unger
Oct 16, 2002·Laboratory Investigation; a Journal of Technical Methods and Pathology·Gunter WolfRolf A K Stahl

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