Multiplexed luminal tissue constructs with reconfigurable barriers for dynamic modeling of multi-tissue interactions

Area of Science:

• Biotechnology
• Tissue Engineering
• In Vitro Modeling

Background:

• Cell-lined luminal structures are vital for nutrient transport and tissue barriers.
• Existing in vitro models struggle with the geometrical complexity of luminal structures.
• Current microengineering platforms have limitations in throughput and operational complexity.

Purpose of the Study:

• To develop an advanced platform for creating 3D tissue constructs with luminal structures.
• To overcome limitations of conventional systems in modeling complex tissue architectures.
• To enable dynamic modeling of multi-tissue interactions for physiological relevance.

Main Methods:

• Utilized a sacrificial micromolding technique to generate arrays of luminal structures in hydrogels.
• Incorporated a reconfigurable oil barrier for compartmentalization and dynamic multi-tissue interactions.
• Developed a high-throughput, robust, and flexible platform for complex microtissue cultures.

Main Results:

• Successfully fabricated arrays of 3D tissue constructs with integrated luminal structures.
• Demonstrated improved throughput and reduced fabrication complexity compared to existing methods.
• Enabled discrete compartmentalization and dynamic reconfiguration for multi-tissue experiments.

Conclusions:

• The developed platform overcomes limitations in modeling cell-lined luminal structures.
• It offers a flexible and robust solution for complex microtissue cultures and multi-tissue experiments.
• Presents a promising technology for advancing multi-organ modeling and drug discovery applications.