Antiproliferative and overadditive effects of everolimus and mycophenolate mofetil in pancreas and lung cancer cells in vitro

Transplantation Proceedings
S StrackeJ M Mayer

Abstract

Everolimus inhibits the growth of several tumor cell lines in vitro as well as tumor growth in a rat model. Mycophenolate mofetil (MMF) inhibits growth of a Walker sarcoma in a rat model in vivo. Herein we tested the in vitro antiproliferative capacity of everolimus and MMF on a pancreatic tumor cell line Panc-1 and on a small cell lung cancer cell line ScLc. Cells were cultured under standardized conditions. Everolimus was added in increasing doses from 0.005 to 500 microg/mL; MMF was used from 0.05 to 5000 microg/mL. For co-incubation experiments, we combined everolimus (0.005 microg/mL and 0.05 microg/mL) with five concentrations of MMF; and MMF (0.5 microg/mL and 5 microg/mL) with five concentrations of everolimus. The antiproliferative capacity was assessed by a BrdU incorporation assay. Everolimus and MMF inhibited BrdU incorporation into Panc-1 and ScLc in a dose-dependent fashion. A 50% inhibition was seen in Panc-1 only at 50 microg/mL everolimus, but in ScLc at 5 microg/mL everolimus. MMF was clearly more potent in Panc-1: 50% inhibition was observed at 5 microg/L. In ScLc, 40% inhibition of BrdU incorporation was seen only at 50 microg/L MMF. In co-incubation, an effective combination for both Panc-1 and ScLc was 5 m...Continue Reading

Citations

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