Advances in Living Myocardial Slice Technology for Heart Failure Research

Area of Science:

• Cardiovascular Research
• Preclinical Disease Modeling
• Regenerative Medicine

Background:

• Effective heart failure (HF) treatments are hindered by inadequate preclinical models.
• Living myocardial slices (LMS) retain native adult myocardium structure and function.
• Advancements in culture methods have increased LMS utility in HF research.

Purpose of the Study:

• To review key findings and applications of LMS in heart failure research.
• To highlight LMS as a physiologically relevant model for HF.
• To discuss the translational potential of LMS in understanding HF mechanisms.

Main Methods:

• Utilizing ultra-thin sections of animal and human heart tissue (including HF explants).
• Culturing LMS to maintain complexity, multicellularity, and function.
• Applying LMS to study drug responses, cardiotoxicity, gene delivery, and device therapy.

Main Results:

• LMS accurately model HF and related cardiac diseases.
• LMS enable study of human-specific drug responses and cardiotoxicity.
• LMS platforms validate gene therapy and mimic device therapy for HF.

Conclusions:

• LMS bridge the gap between in vitro and in vivo models for HF research.
• LMS offer a highly translational platform for testing HF treatments.
• Despite challenges, LMS advance understanding of HF mechanisms and therapeutic strategies.