ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Июнь 5, 2025
Severe periodontitis, affecting 10% of the population, is characterized by chronic inflammation and bone loss. Given limitations current treatments, modulating enhancing regeneration from an immunological perspective represent a promising strategy. This study developed hierarchical drug delivery scaffold with outer layer poly(lactic-co-glycolic acid) loaded aspirin inner core poly(L-lactic containing osteogenic growth peptide (OGP), fabricated via electrospinning. In early implantation phase, suppresses M1 promotes macrophage M2 polarization, shifting periodontal microenvironment inflammatory to regenerative. At later stages, release OGP enhances at implant site. The sequentially releasing OGP-Scaffold (As+OGP-Scaffold) demonstrate excellent biocompatibility potent immuno-osteogenic effects both in vitro vivo. Bioinformatics Western blot analyses show that As+OGP-Scaffold modulates polarization inhibiting ERK-CREB axis activating STAT3 pathway while promoting osteogenesis through SMAD signaling pathways suppressing osteoclast-associated MAPK signaling. dual approach offers solution for severe periodontitis.
Язык: Английский