Supernatant levels of IFN-, TNF-, GM-CSF, IL-8, MIP-1, and RANTES were determined by multiplex assay using the Luminex system (Luminex Co.) and human-specific bead sets (R&D systems; sensitivity 0.5C3.0 pg/mL) and final pg/mL values adjusted for background for each condition were determined using the following equation: [NK cells + Raji cells pg/mL] ? [(NK cells […]