2% ± 5.6% and 33.2% ± 1.0% viable cells in HT29 (fig. 1a) and Chang Liver cells (fig. 1d), respectively. In HT29 cells, this effect was due to a significant rise in apoptotic cells (fig. 1b), whereas Chang liver cells responded with significant BTSA1 increase in both apoptotic and necrotic cells (fig. 1e+f). In HT1080 fibrosarcoma cells, the strongest reduction of cell viability was observed after 100 μM TRD leading to 26.8% ± 3.7% viable
cells (fig. 1g), mainly due to a pronounced apoptotic effect (fig. 1h). In contrast, both pancreatic cancer cell lines, AsPC-1 and BxPC-3, showed the highest response after 24 h upon treatment with 1000 μM TRD, resulting in 36.8% ± 5.2% (AsPC-1, fig. 2a) and 25.7% ± 4.3% (BxPC-3, fig. https://www.selleckchem.com/products/cilengitide-emd-121974-nsc-707544.html 2d) viable cells. Interestingly, this reduction of cell viability was reflected by an exclusive enhancement of necrosis without any significant effect on apoptosis. The observed proportions of necrotic cells for AsPC-1 and BxPC-3 were the highest observed in this study (fig. 2c+f) (table 1). The results
for 6 hours incubation are provided in additional file 1 and summarized in table 1. Table 1 Effect of increasing Taurolidine concentrations on viable, apoptotic and necrotic cells in different cell lines. HT29 Chang Liver HT1080 AsPC-1 BxPC-3 FACS analysis Reduction of viable cells after 6 h TRD 250 TRD 1000 TRD 1000 TRD 100 TRD 1000 TRD 1000 TRD 250 Increase of
apoptotic cells after aminophylline 6 h TRD 250 TRD 1000 TRD 250 TRD 1000 TRD 100 TRD 1000 TRD 1000 TRD 250 Increase of necrotic cells after 6 h Ø TRD 1000 TRD 1000 TRD 1000 TRD 1000 Reduction of viable cells after 24 h TRD 250 TRD 1000 TRD 250 TRD 100 TRD 1000 TRD 100 TRD 250 TRD 1000 TRD 1000 TRD 1000 TRD 250 TRD 100 Increase of apoptotic cells after 24 h TRD 250 TRD 1000 TRD 250 TRD 100 TRD 1000 TRD 100 TRD 250 TRD 1000 Ø TRD 250 Increase of necrotic cells after 24 h TRD 1000 TRD 250 TRD 100 TRD 1000 TRD 250 TRD 100 TRD 1000 TRD 1000 TRD 1000 TRD 250 Pattern of dose response (viable cells) after 24 h (FACS anaylsis) V-shaped V-Shaped Anti-Prop. Prop. Prop. Effect of increasing Taurolidin (TRD) concentrations (100 μM, 250 μM and 1000 μM) in different cell lines measured by FACS analysis (Annexin V/Propidium Iodide). TRD concentrations in μM with significant differences in viable, apoptotic or necrotic cells compared to untreated controls. TRD = Taurolidin, Prop. = proportional, Anti-Prop. = anti-proportional Ø = no significant effect Bold print = TRD concentration (in μM) with the highest reduction of viable cells after 6 h and 24 h. TRD shows specific patterns of dose response effects among different cell lines Dose response effects after 24 h were buy INK1197 neither straight proportional nor uniform among different cell lines. The only cell line with an obvious proportional dose effect was BxPC-3.