Immunomodulation and T Helper TH1/TH2 Response Polarization by CeO2 and TiO2 Nanoparticles

Immunomodulation by nanoparticles, especially as related to the biochemical properties of these unique materials, has scarcely been explored. In an in vitro model of human immunity, we demonstrate two catalytic nanoparticles, TiO₂ (oxidant) and CeO₂ (antioxidant), have nearly opposite effects on human dendritic cells and T helper (T(H)) cells. For example… CONTINUE READING