MCL1 and neuroblastoma: To study long-term survival after treatment we performed clonogenic survival assays which demonstrated that survival of neuroblastoma cells after FAS-receptor activation by CH11 antibody was significantly increased in Mcl1LJAM -expressing cells (201%, P < 0.01) compared to Mcl1L-expressing cells (143%) and SH-EP/Ctr cells (Fig. 6C).