069 | Comparative analysis of inflammatory and redox responses in human and rat macrophages exposed to calcium-doped mesoporous silica nanoparticles: Styliani Axypolitou1, Antonietta Ligas2, Ioannis Tsamesidis1, Georgia K. Pouroutzidou1, Pier Luigi Fiori2, Antonella Pantaleo2, Eleana Kontonasaki1 | 1Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece 2Department of Biomedical Sciences, Division of Microbiology and Virology, University of Sassari, Italy. J Biol Res. 2026;99(s1). doi:10.4081/jbr.2026.15321