Aim:clinical treatment of solid tumors with docetaxel,flavopiridol,or 5-fluorou-racil(5-FU)often encounters undesirable side effects and drug *** aims to evaluate the potential role of combination therapy with docetax...
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Aim:clinical treatment of solid tumors with docetaxel,flavopiridol,or 5-fluorou-racil(5-FU)often encounters undesirable side effects and drug *** aims to evaluate the potential role of combination therapy with docetaxel,flavopiridol,or 5-FU in modulating chemosensitivity and better understand howthey might be used ***:HcT116 colon cancer cells were treatedwith docetaxel,flavopiridol,and 5-FU in several different administrative sche-dules in vitro,either sequentially or *** survival was measuredby MTT *** activity of caspase-3 was determined by caspase-3 assaysand the soft agar colony assay was used to test the colony formation of HcT116cells in soft *** also established xenograft models to extend in vitro obser-vations to an in vivo ***:The maximum cytotoxicity was found whenhuman colon cancer HcT116 cells were treated with docetaxel for 1 h followed byflavopiridol for 24 h and 5-FU for another 24 *** sequential combinationtherapy not only inhibits tumor cell growth more strongly compared to othercombination therapies but also significantly reduces colony formation in soft agarand augments apoptosis of HcT116 *** of docetaxel followed 1 hlater by flavopiridol,followed 24 h later by 5-FU in xenograft models,also resultedin delayed tumor growth and higher survival ***:These resultshighlight the importance of an administrative schedule when combining docetaxelwith flavopiridol and 5-FU,providing a rationale explanation for its developmentin clinical trials.
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