Towards technically controlled bioreactor maturation of tissue-engineered heart valves.

Area of Science:

• Biomedical Engineering
• Tissue Engineering
• Cardiovascular Research

Background:

• Bioreactors are crucial for tissue-engineered heart valve (TEHV) pre-conditioning.
• Current standard protocols (SOP) lack personalization for individual TEHV biological variability.
• Patient-individualized pre-conditioning requires sensory feedback and controllable bioreactor systems.

Purpose of the Study:

• To develop a technological framework for TEHV maturation experiments in a pulsating bioreactor.
• To create a bioreactor system for continuous control and documentation of the conditioning process.
• To enhance the reproducibility and comparability of TEHV maturation experiments.

Main Methods:

• Introduction of a technological framework for TEHV maturation in a pulsating bioreactor.
• Development of hardware components, communication structure, and software for online supervision.
• Preliminary experiments with a TEHV to evaluate system functionality.

Main Results:

• The developed bioreactor system allows for continuous control and documentation of TEHV conditioning.
• Preliminary experiments demonstrated the adequacy and functionality of the new system.
• The system design facilitates reproducible and comparable experimental outcomes.

Conclusions:

• The developed bioreactor system is a significant advancement for controlled TEHV maturation.
• This framework represents a crucial step towards patient-individualized TEHV pre-conditioning.
• Future integration of molecular and histological sensors will enable fully automated, self-controlled preconditioning.