Drug-induced apoptosis is associated with enhanced Fas (Apo-1/CD95) ligand expression but occurs independently of Fas (Apo-1/CD95) signaling in human T-acute lymphatic leukemia cells. Posted byadmin 27. July 1997 Villunger A, Egle A, Kos M, Hartmann BL, Geley S, Kofler R, Greil R. http://www.ncbi.nlm.nih.gov/pubmed/9269989