Regulation of immune microenvironments by polyetheretherketone surface topography for improving osseointegration.

ABSTRACT: Optimizing the immune microenvironment is essential for successful implant osseointegration. In this study, four different nano/microstructures were fabricated on polyetheretherketone (PEEK) substrates by varying the agitation speed during sulfonation to influence osteoimmunomodulation and implant integration. The results indicate that nano/microstructures with minimal dimensions (SP450) inhibit actin polymerization by reducing calcium influx through PIEZO1, activating the anti-inflammatory M2 macrophage phenotype. Among the tested specimens, SP450 exhibited the lowest expression levels of tumor necrosis factor-α and interleukin-1β while releasing the highest levels of anti-inflammatory factors, including interleukin-4 and interleukin-10. This optimized immune environment promotes the oste

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC11895393 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature