IAP

MM cell lines UM9 (left panel) or U266 (right panel) were cultured in presence or absence of accessory cells prior to incubation with CTLs alone, YM155 alone or the combination. Survival of UM9 and U266 MM cells was assessed by CS-BLI. Results show % lysis of MM cells after 24 hour incubation and are depicted for three doses.

IEC-1 cells were transfected with Per1/2 specific siRNAs or a control siRNA. Afterward, the cells were stimulated with TNFa (0.1 ng/ml under basal conditions) in the presence or absence of BV-6 or were left untreated. Activation of caspase-8 (I) and caspases 3/7 (J ) was assayed. Data are presented as the means±SEM of at least 3 independent experiments. *P≤0.05, **P≤0.01.

Western blot analysis of XIAP and cIAP1 expression and PARP cleavage in H460, A549 and 34LU cells pre-treated with vorinostat or entinostat for 6h followed by the SMAC mimetic birinapant for 24h.

Inhibitor of Apoptosis Proteins (IAPs) were involved in MCP-1/IL-6 production under high dose TNF-α stimulation. A. hUC-MSCs (2x104 in 96-well plates) were pretreated for 2h with the IAP inhibitor GDC-0152 at increasing concentrations (0-1000 nM), then stimulated with TNF-α (20 ng/ml, 1.2 nM). After a further 24h, trypan blue was used to exclude cell toxicity. SN was collected and IL-6 and MCP-1 concentrations were measured by ELISA. B. hUC-MSCs(5×105 in T25 bottle) were pretreated with GDC-0152(1000nM) for 2 h, then stimulated with TNF-α (20 ng/ml, 1.2 nM). 24 hours later, protein from nucleus and cytoplasma were extracted separately and the amount of NF-kB were detected by Western blot. Data are as mean±SEM of triplicate measurements; *p<0.05, **p<0.01, ***p<0.001 when compared to untreated cells. These experiments were repeated 3 times with the same results, using clone 69 and another TNF-α sensitive clone (clone 120003).

G, cells treated with the SM406 (1 μmol/L) for 48 hours were subjected to Western blotting.

MM cell lines UM9 (left panel) or U266 (right panel) were cultured in presence or absence of accessory cells prior to incubation with CTLs alone, YM155 alone or the combination. Survival of UM9 and U266 MM cells was assessed by CS-BLI. Results show % lysis of MM cells after 24 hour incubation and are depicted for three doses.

IEC-1 cells were transfected with Per1/2 specific siRNAs or a control siRNA. Afterward, the cells were stimulated with TNFa (0.1 ng/ml under basal conditions) in the presence or absence of BV-6 or were left untreated. Activation of caspase-8 (I) and caspases 3/7 (J ) was assayed. Data are presented as the means±SEM of at least 3 independent experiments. *P≤0.05, **P≤0.01.

Western blot analysis of XIAP and cIAP1 expression and PARP cleavage in H460, A549 and 34LU cells pre-treated with vorinostat or entinostat for 6h followed by the SMAC mimetic birinapant for 24h.

Inhibitor of Apoptosis Proteins (IAPs) were involved in MCP-1/IL-6 production under high dose TNF-α stimulation. A. hUC-MSCs (2x104 in 96-well plates) were pretreated for 2h with the IAP inhibitor GDC-0152 at increasing concentrations (0-1000 nM), then stimulated with TNF-α (20 ng/ml, 1.2 nM). After a further 24h, trypan blue was used to exclude cell toxicity. SN was collected and IL-6 and MCP-1 concentrations were measured by ELISA. B. hUC-MSCs(5×105 in T25 bottle) were pretreated with GDC-0152(1000nM) for 2 h, then stimulated with TNF-α (20 ng/ml, 1.2 nM). 24 hours later, protein from nucleus and cytoplasma were extracted separately and the amount of NF-kB were detected by Western blot. Data are as mean±SEM of triplicate measurements; *p<0.05, **p<0.01, ***p<0.001 when compared to untreated cells. These experiments were repeated 3 times with the same results, using clone 69 and another TNF-α sensitive clone (clone 120003).

G, cells treated with the SM406 (1 μmol/L) for 48 hours were subjected to Western blotting.