Bone cells and microenvironment via scaffold surface and ion release

The bone microenvironment is a complex system comprising various cell types, including osteoblasts, osteoclasts, and mesenchymal stem cells, interacting within an extracellular matrix (Source: PubMed ID: 30234092). In regenerative medicine, scaffolds are designed to mimic this environment by providing structural support and biochemical cues. The surface topography of these scaffolds influences cell adhesion and morphology, while the controlled release of bioactive ions—such as calcium, magnesium, and silicon—directly modulates cellular signaling pathways (Source: PubMed ID: 28811140). These interactions promote osteogenesis and angiogenesis, facilitating the repair of bone defects (Source: PubMed ID: 31421345). However, this concept represents a multi-component therapeutic strategy rather than a single molecular target, involving the integration of material science and cell biology to restore skeletal function. Consequently, the efficacy of such systems depends on the precise orchestration of physical, chemical, and biological cues within the healing niche (Source: PubMed ID: 25634144).

Other names

Bone tissue engineering nicheBioactive scaffold-mediated bone regenerationOsteogenic microenvironmentBone cell-scaffold interface

Activation of the calcium-sensing receptor (CaSR) and integrin-mediated signaling; stimulation of the Wnt/beta-catenin and BMP/Smad pathways via released ions (Ca2+, Mg2+, Si4+); physical modulation of cell behavior through surface topography and mechanotransduction.