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Related Concept Videos

Liver Regeneration01:24

Liver Regeneration

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The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
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The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
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Updated: Jan 8, 2026

In Vitro Cultivation Techniques for Modeling Liver Organogenesis, Building Assembloids, and Designing Synthetic Tissues using Human Cell Lines
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In Vitro Cultivation Techniques for Modeling Liver Organogenesis, Building Assembloids, and Designing Synthetic Tissues using Human Cell Lines

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Synthetic Control of Implanted Engineered Liver Tissue Growth.

Amy E Stoddard, Vardhman Kumar, Constantine N Tzouanas

    Biorxiv : the Preprint Server for Biology
    |December 22, 2025
    PubMed
    Summary
    This summary is machine-generated.

    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.

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    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.