Angiotensin II signal transduction pathways.
It has been 100 years since the discovery of renin by Tigerstedt and Bergman. Since that time, numerous discoveries have advanced our understanding of the renin-angiotensin system, including the observation that angiotensin II is the effector molecule of this system. A remarkable aspect of angiotensin II is the many different physiological responses this simple peptide induces in different cell types. Here, we focus on the signal transduction pathways that are activated as a consequence of angiotensin II binding to the AT1 receptor. Classical signaling pathways such as the activation of heterotrimeric G proteins by the AT1 receptor are discussed. In addition, recent work examining the role of tyrosine phosphorylation in angiotensin II-mediated signal transduction is also examined. Understanding how these distinct signaling pathways transduce signals from the cell surface will advance our understanding of how such a simple molecule elicits such a wide variety of specific cellular responses.
Sayeski
P P
PP
Department of Pathology, Emory University School of Medicine, Atlanta, GA 30322, USA.
Ali
M S
MS
Semeniuk
D J
DJ
Doan
T N
TN
Bernstein
K E
KE
D000595:Amino Acid Sequence; D000804:Angiotensin II / Q000378:metabolism* / Q000502:physiology; D015815:Cell Adhesion Molecules / Q000378:metabolism; D051416:Focal Adhesion Protein-Tyrosine Kinases; D019204:GTP-Binding Proteins / Q000378:metabolism; D008969:Molecular Sequence Data; D010766:Phosphorylation; D011505:Protein-Tyrosine Kinases / Q000378:metabolism; D011945:Receptors, Angiotensin / Q000378:metabolism; D012084:Renin-Angiotensin System / Q000502:physiology; D015398:Signal Transduction / Q000502:physiology*; D013329:Structure-Activity Relationship; D014443:Tyrosine / Q000378:metabolism
D015815:Cell Adhesion Molecules; D011945:Receptors, Angiotensin; D000804:Angiotensin II; D014443:Tyrosine; D011505:Protein-Tyrosine Kinases; D051416:Focal Adhesion Protein-Tyrosine Kinases; D019204:GTP-Binding Proteins