FH535 antagonizes β-Catenin/Tcf–mediated transcription, and inhibits recruitment of the coactivators GRIP1 and β-catenin to PPARδ and PPARγ. FH535 increases cigarette smoke condensate cytotoxicity, and causes changes in β-catenin and EGR-1 signaling. FH535 inhibits β-catenin and GRIP1 recruitment to PPARγ and δ. FH535 Exhibits antiproliferative effects in transformed colon, lung and liver cancer cell lines.
|Source||Oncotarget (2018). Figure 5. FH535|
|Method||cell proliferation assay|
|Cell Lines||EOC cells|
|Incubation Time||48 h|
|Results||We have determined sub-optimal doses of thiostrepton and FH535 that can be used in combination to inhibit cell viability, clonogenicity and induce apoptosis.|
|Cell lines||HCT116, SW48, RKO, LoVo, COLO205, IEC6, A427, HCC15, NCI-H1703, A549, HepG2, Hep3b, Huh7, Fibroblasts|
|Preparation method||Determining cell viability by the modified 3H-thymidine incorporation assay. Briefly, plating cells in 96-well microplates for 24 h and treating in triplicate with various concentrations of the test compound. After 48 h of compound exposure, incubating the cells for an additional 48 h in compound-free medium. Then incubating the cells in medium containing 3H-thymidine for 24 h, washing and mixing with the scintillant in the 96-well plate. Counting Individual wells with a 96-well scintillation counter and calculating the LC50.|
|Incubation time||48 hours|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
A small-molecule inhibitor of Tcf/beta-catenin signaling down-regulates PPARgamma and PPARdelta activities.
Handeli S, et al. Mol Cancer Ther. 2008 Mar;7(3):521-9. PMID: 18347139.
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