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Related Experiment Video

Updated: Sep 21, 2025

Processing of Human Cardiac Tissue Toward Extracellular Matrix Self-assembling Hydrogel for In Vitro and In Vivo Applications
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Peripheral Nerve Decellularization for In Vitro Extracellular Matrix Hydrogel Use: A Comparative Study.

Emory Gregory, In Ha Baek, Nikolas Ala-Kokko

    ACS Biomaterials Science & Engineering
    |June 1, 2022
    PubMed
    Summary

    Standardizing decellularization methods for peripheral nerve tissue engineering is crucial. The sodium deoxycholate (SD)-based approach with epineurial removal best preserves extracellular matrix (ECM) properties for nerve hydrogel models.

    Keywords:
    decellularized extracellular matrixmechanical and hydrogel propertiesperipheral nerve diseasesciatic nerves

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    Area of Science:

    • Biomaterials Science
    • Tissue Engineering
    • Neuroscience

    Background:

    • Tissue-engineered biomaterials, particularly 3D decellularized extracellular matrix (dECM) hydrogels, offer clinically relevant disease models.
    • Decellularized nerve hydrogels are used for in vitro modeling of peripheral nerve injuries, but lack standardized decellularization protocols.

    Purpose of the Study:

    • To standardize decellularization methods for peripheral nerve dECM hydrogels.
    • To evaluate different decellularization techniques for their efficacy in preserving ECM structure and function.
    • To establish a reliable dECM hydrogel platform for in vitro nerve disease modeling.

    Main Methods:

    • Rat sciatic nerves were decellularized using sodium deoxycholate (SD)-based, CHAPS-based, and apoptosis-mediated methods.
    • Nerves were characterized for cell removal, ECM retention, and cytotoxicity.
    • Decellularized nerve ECM (dECM) hydrogels were prepared and analyzed for rheology, gelation kinetics, and collagen structure.
    • Schwann cell viability and function were assessed in hydrogel cultures and compared to monolayer cultures.

    Main Results:

    • The SD-based method with epineurial removal demonstrated superior cell/debris removal while maintaining ECM composition and mechanical properties.
    • Hydrogel-embedded Schwann cells exhibited high viability and physiologically relevant behavior.
    • The dECM hydrogel platform facilitated Schwann cell activation by cancer-secreted factors, enabling cancer-nerve crosstalk studies.

    Conclusions:

    • A standardized SD-based decellularization method for peripheral nerve dECM hydrogels was established.
    • This dECM hydrogel serves as an effective in vitro testbed for peripheral nerve disease modeling.
    • The findings support the development of new treatments for peripheral nerve diseases and injuries.