Mechanotransduction-driven macrophage polarization via Integrin-SRC-STAT6 pathway in distraction osteogenesis - PubMed
5 hours ago
- #Macrophage Polarization
- #Bone Regeneration
- #Mechanotransduction
- Mechanical stimuli are essential for bone regeneration, with distraction osteogenesis (DO) being a key clinical technique for bone repair.
- Macrophages, which are mechanosensitive, play a crucial role in bone fracture healing by modulating the immune microenvironment in response to mechanical cues.
- The study investigates macrophage response to mechanical stimulation during DO, focusing on the Integrin-SRC-STAT6 pathway.
- Results show that DO enhances M2 macrophage polarization, which is driven by mechanical activation of the Integrin-SRC-STAT6 pathway.
- Mechanically induced M2 macrophages secrete TGF-β and IL-10, enhancing osteoblast differentiation and bone regeneration.
- Inhibition of SRC suppresses M2 polarization and impairs bone regeneration, which can be partially rescued by TGF-β supplementation.
- The findings reveal a novel mechano-immune regulatory axis that supports bone regeneration in DO, with potential therapeutic applications.