Targeting oxidative stress-MMP-2 signaling in hypertension-induced cardiovascular remodeling and dysfunction

Area of Science:

• Cardiovascular Physiology
• Oxidative Stress Biology
• Pharmacology

Background:

• Hypertension causes cardiovascular damage via reactive oxygen and nitrogen species, leading to matrix proteolysis and arterial stiffness.
• Oxidative stress is closely linked to matrix metalloproteinase (MMP) activity, particularly MMP-2, in cardiovascular diseases.
• MMP-2 is crucial in vascular and cardiac remodeling, contributing to dysfunction in hypertension.

Purpose of the Study:

• To review evidence on antioxidants' effects on cardiovascular remodeling in hypertension.
• To explore the mechanisms by which oxidative stress influences MMPs.
• To assess the therapeutic potential of antioxidants in hypertensive cardiovascular disease.

Main Methods:

• Comprehensive review of experimental and clinical studies.
• Analysis of oxidative stress pathways regulating MMPs, including S-glutathiolation.
• Evaluation of various antioxidant interventions (dietary and pharmacological).

Main Results:

• Antioxidants reduce oxidative stress and MMP activity.
• Improved nitric oxide bioavailability and attenuated cardiovascular remodeling observed in experimental hypertension.
• Specific agents reviewed include polyphenols, carotenoids, vitamins, doxycycline, NADPH oxidase inhibitors, and donors of nitrite and hydrogen sulfide.

Conclusions:

• Antioxidants show promise in ameliorating cardiovascular dysfunction in experimental hypertension by modulating MMPs.
• Further clinical investigation is required to translate these findings to human patients.
• Understanding antioxidant-MMP interactions may lead to new therapeutic strategies for hypertensive cardiovascular diseases.