Synthetic Control of Implanted Engineered Liver Tissue Growth
Biorxiv : the Preprint Server for Biology
|December 22, 2025
Summary
Scientists developed a novel method for scaling up engineered tissues for organ repair. This bioengineered on-demand outgrowth using synthetic triggers (BOOST) allows small implants to grow to therapeutic sizes after transplantation.
Area of Science:
- Biotechnology
- Regenerative Medicine
- Synthetic Biology
Background:
- Scaling engineered tissues for organ failure treatment is a major clinical challenge.
- Current methods struggle to produce therapeutically relevant sizes for implantation.
Purpose of the Study:
- To develop a strategy for *in situ* tissue expansion after implantation.
- To create liver tissues that can be enlarged on-demand *in vivo*.
Main Methods:
- Integrated synthetic biology and tissue engineering.
- Identified YAP and growth factor signaling for hepatocyte proliferation.
- Engineered synthetic biology tools for controlled signaling.
Main Results:
- Demonstrated human liver tissue expansion *in vitro* and *in vivo*.
- YAP and growth factor signaling combination drives proliferation in 3D tissues.
- Established a genetic strategy for on-demand tissue growth.
Conclusions:
- Bioengineered on-demand outgrowth using synthetic triggers (BOOST) enables *in situ* solid cell therapy scale-up.
- This approach offers a promising solution for generating large organ implants.
- Potential to overcome limitations in clinical translation of engineered tissues.
