Bone repair: new developments in growth factor delivery systems and their mathematical modeling
Marc-Antoine Lauzon1, Eric Bergeron, Bernard Marcos
1Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada.
Summary
New growth factor delivery systems (GFDSs) show promise for treating bone defects in aging populations, addressing limitations of current bone grafts and improving upon FDA-approved options.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Aging populations face increasing incidence of large bone defects.
- Current bone grafts have limitations; growth factor delivery systems (GFDSs) offer potential solutions.
- Existing FDA-approved GFDSs exhibit mechanical, structural, and growth factor retention weaknesses.
Purpose of the Study:
- To review the process of endochondral bone healing and key cytokines.
- To survey the latest GFDSs, including biomaterial compositions, release kinetics, and biological effects.
- To explore novel research avenues and mathematical modeling of GFDSs.
Main Methods:
- Literature review of endochondral bone healing and cytokines.
- Analysis of current and emerging GFDSs, encompassing biomaterials and release kinetics.
- Examination of mathematical models for drug delivery systems (DDSs) applied to GFDSs.
Main Results:
- Endochondral bone healing involves specific cytokines.
- Diverse GFDSs utilize various biomaterials (organic, inorganic, natural, synthetic) with varying release kinetics and biological effects.
- New research focuses on peptide-derived growth factors and sequential release strategies.
Conclusions:
- Advanced GFDSs are crucial for addressing bone defects in aging demographics.
- Mimicking the physiological healing environment through novel biomaterials and growth factor combinations is a key research direction.
- Improved mathematical modeling is essential for optimizing GFDS performance and predicting transport phenomena.
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