Published in

American Heart Association, Hypertension, 1(29), p. 366-370, 1997

DOI: 10.1161/01.hyp.29.1.366

Links

Tools

Export citation

Search in Google Scholar

Angiotensin II Signaling in Vascular Smooth Muscle: New Concepts

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

Angiotensin II is a multifunctional hormone that affects both contraction and growth of vascular smooth muscle cells through a complex series of intracellular signaling events initiated by the interaction of angiotensin II with the AT 1 receptor. The cellular response to angiotensin II is multiphasic, involving stimulation within seconds of phospholipase C and Ca 2+ mobilization; activation within minutes of phospholipase D, A 2 , protein kinase C, and MAP kinase; and stimulation after a period of hours of gene transcription and NADH/NADPH oxidase activity. Angiotensin II also activates numerous intracellular tyrosine kinases. In this respect, it shares some aspects of signaling with growth factor and cytokine receptors, including activation of phospholipase C-γ, src, and ras; association of shc with grb2; and stimulation of the Jak/STAT pathway. The cellular events responsible for this unique series of events may involve receptor movement and the creation of a signaling domain. Elucidation of these pathways is important to our understanding of AT 1 receptor function as a final effector of the renin-angiotensin system.