Decellularized Bovine Trabecular Extracellular Matrix Enriched with Type I Collagen Based Hydrogel

科学分野:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

背景:

• Biomaterials are crucial for tissue replacement, requiring biomimetic, biocompatible, and biodegradable properties.
• Biocomposites offer enhanced chemical and mechanical characteristics for biological integration and stability at implantation sites.
• Developing advanced biomaterials is essential for addressing unmet needs in tissue repair and regeneration.

研究 の 目的:

• To develop a thermosensitive biocomposite hydrogel using decellularized extracellular matrix (ECM) from bovine trabecular bone and type I collagen from bovine tendon.
• To evaluate the incorporation of ECM components and assess the hydrogel's thermosensitive properties.
• To investigate the potential of this novel biocomposite for tissue engineering applications, specifically in bone repair.

主な方法:

• Bovine bone fragments were decellularized, lyophilized, and pulverized to obtain ECM.
• Type I collagen was extracted from bovine tendons.
• The ECM and tendon collagen were combined, digested, neutralized, and incubated at 37°C to induce gelation, with characterization via turbidimetry and SEM.

主要な成果:

• The developed hydrogel exhibited thermosensitivity, with gelation completed in approximately 50 minutes.
• High incorporation rates were achieved for collagen (96.7%) and glycosaminoglycans (GAGs) (109%).
• Scanning electron microscopy revealed a porous, reticulated structure, indicative of a suitable scaffold for tissue regeneration.

結論:

• A thermosensitive biocomposite hydrogel incorporating bone ECM and tendon collagen was successfully developed.
• The hydrogel demonstrates excellent material properties and efficient incorporation of key biomolecules.
• This novel biomaterial holds significant potential for applications in tissue engineering and regenerative medicine, particularly for bone defect repair.