iLite® ADCC Target mTNF-alpha (+) Assay Ready Cells are based on a human embryonic kidney cell line, HEK293 (ATCC# CRL-1573), and have been genetically engineered and optimized to express high and constant levels of the surface antigen mTNF-alpha. The cells are to be use as target cells together with iLite ADCC Effector (V) Assay Ready Cells for measuring the ADCC activity of anti-TNF-alpha antibodies.