Effect of test compounds on the ability of Raji/DC-SIGN cells to capture HIV-1(IIIB) particles
IC50 is the 50% inhibitory concentration or compound concentration required to prevent HIV-1 capture (adsorption) by Raji/DC-SIGN cells as measured by HIV-1 p24 ELISA determination in the virus-exposed Raji/DC-SIGN cell cultures after prior and careful removal of unadsorbed virus.