Matrices of Different Natures for Bone Tissue Engineering-A Comparative Analysis.

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Bone defects from injuries, diseases, and oncological surgeries are increasing.
• Bone tissue substitutes are crucial for repairing bone defects.
• Matrices with biologically active components are promising for bone tissue engineering.

Purpose of the Study:

• To comprehensively study matrices for bone tissue engineering constructs.
• To evaluate physical, mechanical, and biological characteristics of various matrices.
• To determine suitability of matrices for bone defect repair.

Main Methods:

• Assessment of total and associated porosity.
• Analysis of matrix structure and mechanical parameters (compressive stress).
• Evaluation of cytotoxicity and cytocompatibility using mesenchymal stem cells (MSCs).

Main Results:

• All matrices exhibited no cytotoxicity (rank 0-1).
• Pore sizes varied: 100-1000 μm for biological matrices, 0.1-100 μm for hybrid polymer.
• All matrices supported MSC adhesion, proliferation, and migration, indicating cytocompatibility.

Conclusions:

• All studied matrices are non-cytotoxic and cytocompatible.
• Matrices possess suitable porosity and mechanical properties for bone tissue engineering.
• These materials can serve as a basis for bone defect repair constructs and biomedical studies.