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- W1978118982 abstract "Selective cyclooxygenase-2 (COX-2) inhibition reduces the growth of many cancer cell lines, and this effect may be mediated through induction of apoptosis. This study was designed to investigate the effects of the COX-2 inhibitor nimesulide on the growth of human pancreatic cancer cells.Reverse transcriptase-polymerase chain reaction analysis, northern blotting, and immunoblotting were used to demonstrate COX-2 mRNA and protein in two pancreatic cancer cell lines: BxPC-3 and MIA PaCa-2. The effect of nimesulide on cell growth was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay and cell count. Apoptosis was determined by FACS analysis, DNA laddering, and assessment of the floating cell/attached cell ratio. Caspase-3 activation was evaluated by measuring caspase-3 cellular activity and by determining the effects of two caspase inhibitors on cell viability.COX-2 mRNA was detected in both cell lines. Immunoblotting confirmed COX-2 protein expression in only the BxPC-3 cell line. Nimesulide decreased cell viability and inhibited cell growth in both cell lines. Incubation with 100 micromol/L nimesulide increased the fraction of apoptotic cells and the floating cell/attached cell ratio in both cell lines. DNA laddering was observed after incubation with nimesulide for 96 hours. There was no increase in caspase-3 activity within 96 hours.The selective COX-2 inhibitor nimesulide is antimitogenic in pancreatic cancer cells, which is independent of COX-2 expression. This effect in part is mediated by the induction of apoptosis." @default.
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- W1978118982 date "2003-01-01" @default.
- W1978118982 modified "2023-10-13" @default.
- W1978118982 title "The Selective Cyclooxygenase-2 Inhibitor Nimesulide Induces Apoptosis in Pancreatic Cancer Cells Independent of COX-2" @default.
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- W1978118982 doi "https://doi.org/10.1097/00006676-200301000-00007" @default.
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