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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Jpn+J+Cancer+Res 1994 ; 85 (6): 633-8 Nephropedia Template TP
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Cytotoxicity of Simvastatin to Pancreatic Adenocarcinoma Cells Containing Mutant ras Gene #MMPMID8063617
Ura H; Obara T; Nishino N; Tanno S; Okamura K; Namiki M
Jpn J Cancer Res 1994[Jun]; 85 (6): 633-8 PMID8063617show ga
Simvastatin (SV), a 3?hydroxy?3?methylglutaryl coenzyme A reductase inhibitor, inhibits the synthesis of mevalonic acid. The dose?dependent (0.1?100 ?g/ml) cytotoxicity of SV towards human (MIAPaCa?2, Panc?1, HPC?1, HPC?3, HPC?4, PK?1, PK?9) and hamster (T2) pancreatic carcinoma cell lines was determined by MTT assay. At up to 20 ?g/ml of SV, the effect was reversible and was restored by 60 ?g/ml mevalonic acid. Point mutation of Ki?ras at codon 12 in each cell line was detected by means of the modified polymerase chain reaction. The concentration of SV necessary to achieve 50% cytotoxicity was about 10 ?g/ml, and at this concentration of SV, DNA synthesis assayed in terms of [3H]thymidine uptake, isoprenylation of p21ras examined by Western blotting and cell progression from G1 to S phase of the cell cycle analyzed by flow cytometry were all inhibited. Isoprenylation inhibitors of p21ras, such as SV, are expected to be useful for the treatment of pancreatic cancer.