Reticulocalbin‐2–Programmed Macrophage Exosomes Restore Immuno‐Osteogenic Coupling to Promote Calvarial Bone Regeneration
Findings identify RCN2 as a pivotal mediator linking macrophage immune phenotype with osteogenic fate with support RCN2‐Exos‐loaded PB‐BLS as a promising strategy for bone defect repair.