vFLIP K13 fails to protect against TNFα- and anticancer drug–induced apoptosis.

(A) TF-1 cells expressing an empty vector or vFLIP K13 were treated with TNFα (10 ng/mL) for 48 hours and cell viability examined using the MTS assay. The values shown are means ± SD of 2 independent experiments performed in triplicate. (B) TF-1 cells expressing an empty vector or vFLIP K13 were treated with the indicated doses of drugs for 48 hours and cell viability examined using the MTS assay. The values shown are means ± SD of 2 independent experiments performed in triplicate.