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Updated: Aug 9, 2026

Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
Published on: June 7, 2016
Signaling crosstalk angiotensin II receptor subtypes and insulin
Masatsugu Horiuchi1, Masaki Mogi, Masaru Iwai
1Department of Molecular and Cellular Biology, Division of Medical Biochemistry and Cardiovascular Biology, Ehime University School of Medicine, Japan.
Abstract:
Insulin-resistant states are often associated with hypertension, and the accumulated data indicate that ARB decrease new-onset of diabetes with vasoprotective effects. Recent evidence suggests that activation of Ang II receptor subtypes could regulate insulin sensitivity at multiple sites of insulin signaling in various diabetic animal models and regulate vascular remodeling in concert with insulin in potentially distinct fashions. Moreover, the roles of Ang II receptor subtypes have been highlighted in insulin resistance in obesity, which is one of the major risk factors for the development of hypertension. More detailed analysis of the crosstalk of Ang II and insulin-mediated signaling in various tissues would provide further information to understand the clinical relevance of the effect of ARB on insulin resistance, thereby preventing cardiovascular events associated with insulin resistance.
Insights
Angiotensin II receptor blockers (ARBs) show vasoprotective effects, potentially improving insulin sensitivity and reducing diabetes risk in hypertensive patients. Further research into their signaling pathways could prevent cardiovascular events.
Area of Science:
- Endocrinology
- Cardiovascular Medicine
- Pharmacology
Background:
- Insulin resistance is linked to hypertension and increased cardiovascular risk.
- Angiotensin II receptor blockers (ARBs) demonstrate vasoprotective effects and may reduce new-onset diabetes.
- Obesity, a hypertension risk factor, involves Angiotensin II receptor subtypes in insulin resistance.
Purpose of the Study:
- To explore the relationship between Angiotensin II receptor subtypes and insulin sensitivity.
- To understand the crosstalk between Angiotensin II and insulin signaling in various tissues.
- To elucidate the clinical relevance of ARBs in managing insulin resistance and preventing cardiovascular events.
Main Methods:
- Review of existing data on Angiotensin II receptor subtype activation.
- Analysis of insulin signaling pathways in diabetic animal models.
- Investigation of vascular remodeling in conjunction with insulin signaling.
Main Results:
- Activation of Ang II receptor subtypes influences insulin sensitivity at multiple signaling sites.
- Ang II receptor subtypes play a role in insulin resistance associated with obesity.
- ARBs may offer vasoprotective benefits and impact insulin resistance.
Conclusions:
- Understanding the crosstalk between Ang II and insulin signaling is crucial for managing insulin resistance.
- ARBs hold potential for preventing cardiovascular complications in insulin-resistant individuals.
- Targeting Ang II receptor subtypes may offer therapeutic benefits for metabolic and cardiovascular health.
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