Neuroimmune communication in hypertension and obesity: a new therapeutic angle?
Annette D de Kloet1, Eric G Krause, Peng D Shi
1Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610-0274, USA.
Insights
New research explores how the renin-angiotensin system (RAS), sympathetic nervous system (SNS), and immune system interact to regulate blood pressure, offering potential new treatments for hypertension, especially obesity-related cases.
Area of Science:
- Cardiovascular Science
- Neuroimmunology
- Hypertension Research
Background:
- Hypertension is a widespread health issue and a primary risk factor for cardiovascular disease.
- Many patients with hypertension remain uncontrolled despite existing treatments, necessitating novel therapeutic strategies.
- Increased sympathetic nervous system (SNS) outflow and renin-angiotensin system (RAS) activity are hallmarks of hypertension.
Purpose of the Study:
- To review the interplay between the RAS, SNS, and immune systems in the neural regulation of blood pressure.
- To propose a model of RAS/neuroimmune interactions in hypertension.
- To discuss the therapeutic implications of targeting these interactions, particularly in obesity-related hypertension.
Main Methods:
- Literature review of studies on RAS, SNS, and immune system interactions in blood pressure regulation.
- Synthesis of existing evidence to develop a conceptual model.
- Discussion of therapeutic targets based on the proposed model.
Main Results:
- The RAS, SNS, and immune systems are interconnected and play a crucial role in blood pressure control.
- Hypertension involves complex neuroimmune interactions.
- Targeting these RAS/neuroimmune pathways presents a promising avenue for treating hypertension.
Conclusions:
- Understanding the neuroimmune basis of hypertension is critical for developing new treatments.
- The proposed model highlights the potential of targeting RAS/neuroimmune interactions for managing hypertension.
- This approach may be particularly relevant for addressing obesity-related hypertension.
Abstract:
Hypertension is an epidemic health concern and a major risk factor for the development of cardiovascular disease. Although there are available treatment strategies for hypertension, numerous hypertensive patients do not have their clinical symptoms under control and it is imperative that new avenues to treat or prevent high blood pressure in these patients are developed. It is well established that increases in sympathetic nervous system (SNS) outflow and enhanced renin-angiotensin system (RAS) activity are common features of hypertension and various pathological conditions that predispose individuals to hypertension. More recently, hypertension has also become recognized as an immune condition and accumulating evidence suggests that interactions between the RAS, SNS and immune systems play a role in blood pressure regulation. This review summarizes what is known about the interconnections between the RAS, SNS and immune systems in the neural regulation of blood pressure. Based on the reviewed studies, a model for RAS/neuroimmune interactions during hypertension is proposed and the therapeutic potential of targeting RAS/neuroimmune interactions in hypertensive patients is discussed. Special emphasis is placed on the applicability of the proposed model to obesity-related hypertension.
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