Delivery of Cardioactive Therapeutics in a Porcine Myocardial Infarction Model

Area of Science:

• Cardiovascular Science
• Regenerative Medicine
• Preclinical Research

Background:

• Myocardial infarction (MI) is a major global health concern, necessitating innovative cardioprotective and regenerative treatments.
• Effective therapeutic delivery is critical for developing new MI interventions.
• Large animal models with human-like cardiovascular physiology are essential for preclinical drug evaluation.

Purpose of the Study:

• To describe and validate three distinct methods for administering cardioactive agents in a porcine model of myocardial infarction.
• To establish reproducible protocols for therapeutic delivery in a relevant large animal model.
• To facilitate the preclinical assessment of novel cardiac repair strategies.

Main Methods:

• Percutaneously induced myocardial infarction in female landrace swine.
• Administration of novel agents via thoracotomy and transepicardial injection.
• Delivery through catheter-based transendocardial injection.
• Infusion via intravenous jugular vein osmotic minipump.

Main Results:

• Demonstrated reproducible procedures for all three described delivery techniques.
• Achieved reliable cardioactive drug delivery in the porcine model.
• Established adaptable models for various study designs and interventions.

Conclusions:

• The described methods provide a valuable tool for translational scientists.
• These techniques enable robust investigation of novel biological approaches for cardiac repair post-myocardial infarction.
• The porcine model offers a physiologically relevant platform for evaluating therapeutic delivery strategies.