Growth factors and bioactive proteins immobilized within the scaffold

Growth factors and bioactive proteins immobilized within the scaffold refers to a therapeutic strategy in regenerative medicine and tissue engineering rather than a single molecular target (Lee et al., 2011, Journal of the Royal Society Interface). This approach involves the physical or chemical attachment of signaling molecules, such as Bone Morphogenetic Proteins (BMPs) or Vascular Endothelial Growth Factor (VEGF), to a three-dimensional matrix to mimic the natural extracellular matrix (Bessa et al., 2008, Journal of Pharmaceutical Sciences). The scaffold serves as a delivery vehicle that provides structural support while ensuring the localized and sustained release of proteins to the site of injury (Mitchell et al., 2016, Biomaterials). By presenting these cues in a spatially controlled manner, the system promotes essential biological processes including cell recruitment, proliferation, and differentiation (Zhu et al., 2014, Journal of Controlled Release). Clinically, this modality is employed to treat conditions like non-union bone fractures, chronic wounds, and spinal fusion, as seen with products like the Infuse Bone Graft (FDA, 2002). However, because this term describes a broad class of biomaterial-protein complexes rather than a specific receptor or enzyme, it is categorized as a delivery system or therapeutic modality.

Other names

Bioactive scaffoldsGrowth factor-functionalized scaffoldsProtein-loaded biomaterialsRegenerative scaffoldsGrowth factor delivery systems

Controlled release and localized presentation of bioactive signaling molecules to recruit endogenous cells and stimulate tissue repair.