Myocardial Matrix Hydrogels Mitigate Negative Remodeling and Improve Function in Right Heart Failure Model

Area of Science:

• Biomedical Engineering
• Cardiovascular Research
• Regenerative Medicine

Background:

• Right ventricular (RV) heart failure is a debilitating condition characterized by adverse RV remodeling.
• Current treatments for RV heart failure have limited efficacy in reversing pathological changes.
• Myocardial matrix (MM) hydrogels offer a promising biomaterial approach for cardiac repair.

Purpose of the Study:

• To evaluate the efficacy of RV- and left ventricular (LV)-derived MM hydrogels in mitigating RV remodeling.
• To assess the potential of these hydrogels as injectable therapies for RV heart failure.
• To determine if MM hydrogels can promote cardiac repair and improve RV function.

Main Methods:

• Induction of RV heart failure in a rat model.
• Injection of RV- or LV-derived MM hydrogels into injured rat right ventricles.
• Assessment of RV function, morphology, and remodeling post-treatment.

Main Results:

• Both RV- and LV-derived MM hydrogels significantly improved RV function.
• Hydrogel treatment led to reduced negative RV remodeling.
• Improvements in RV morphology were observed following hydrogel injection.

Conclusions:

• Injectable MM hydrogels are effective in mitigating negative RV remodeling in a rat model of RV heart failure.
• Both RV- and LV-derived hydrogels demonstrate therapeutic potential for RV heart failure.
• This study supports the development of biomaterial-based therapies for RV heart conditions.