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Exploiting crosslinked decellularized matrix to achieve uterus regeneration and construction
Qing Yao1, Ya-Wen Zheng1, Hui-Long Lin1
1School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.
Artificial Cells, Nanomedicine, and Biotechnology
|December 19, 2019
Summary
Researchers enhanced decellularized uterus matrix (dUECM) scaffolds using natural crosslinkers, improving mechanical strength and biocompatibility for uterus xenotransplantation. This promotes tissue regeneration and reduces immune rejection in animal models.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Decellularized extracellular matrix (dECM) shows promise for xenotransplantation scaffolds.
- Natural dECM often suffers from mechanical weakness and rapid degradation.
- Optimizing mechanical properties, degradation, and immune response of dECM scaffolds is crucial for successful xenotransplantation.
Purpose of the Study:
- To enhance the mechanical properties and control the degradation rate of decellularized rabbit uterus matrix (dUECM) using natural crosslinkers.
- To evaluate the biocompatibility and regenerative potential of crosslinked dUECM in a uterus xenotransplantation model.
- To investigate the impact of crosslinking degree on the efficacy of dUECM scaffolds for tissue regeneration.
Main Methods:
- Decellularized rabbit uterus matrix (dUECM) was crosslinked using genipin (GP) and procyanidins (PC).
- Mechanical properties and enzymatic degradation rates of crosslinked dUECM were characterized.
- Subcutaneous xenografts and uterus xenotransplantation in rats were performed to assess cell infiltration, immune response, recellularization, and tissue regeneration.
Main Results:
- Genipin and procyanidin crosslinking significantly enhanced the mechanical strength of dUECM and prolonged its degradation rate.
- Crosslinked dUECM exhibited good biocompatibility, with significant cell infiltration and low immune reactions in subcutaneous grafts.
- In vivo uterus xenotransplantation demonstrated excellent recellularization and promoted uterus regeneration after 90 days.
Conclusions:
- Natural crosslinkers like genipin and procyanidins can effectively improve the mechanical and degradation properties of dUECM scaffolds.
- Crosslinked dUECM demonstrates promising biocompatibility and regenerative capacity for uterus xenotransplantation.
- Careful optimization of crosslinking conditions is essential to balance mechanical support and biological function for effective tissue regeneration.
