FIG. 2.

FACS analysis of DC membrane markers. Twenty-four hours after specified treatments (the combination light immediately followed addition of LPS), 10,000 DC were stained with antibodies against CD11c, MHCII, and CD86. Laser treatment of LPS-treated DC significantly downregulated surface MHCII whereas CD86 was upregulated. There was a similar significant change but at much smaller levels in non-LPS-treated DC. LPS, lipopolysaccharide; DC, dendritic cells; MHC, major histocompatibility complex; dex, dexamethasone.