Trametinib DMSO solvate

Raf-MEK-ERK cascade kinase assay

Non-phosphorylated myelin basic protein (MBP) was coated onto an ELISA plate, and the active form of B-Raf/c-Raf was mixed with unphosphorylated MEK1/MEK2 and ERERK2 in 10 μM ATP and 12.5 mM MgCl2 containing MOPS buffer in the presence of various concentrations of Trametinib. The phosphorylation of MBP was detected by the anti-phospho-MBP antibody.

Cell lines

HT-29 and COLO205 cells

Preparation method

This compound is soluble in DMSO. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reaction Conditions

0, 1, 10 and 100 nM; 0 ~ 4 days

Applications

Trametinib induced apoptosis both in HT-29 and COLO205 cells, but that COLO205 cells were more sensitive to Trametinib than HT-29 cells in terms of apoptosis induction.

Animal models

Female BALB/c-nu/nu mice inoculated subcutaneously with HT-29 or COLO205 cells

Dosage form

0.3 or 1 mg/kg; p.o.; q.d., for 14 days

Applications

Oral administration of Trametinib (0.3 or 1 mg/kg, q.d., for 14 days) was effective in inhibiting the HT-29 xenograft growth, and 1 mg/kg of Trametinib almost completely blocked the tumor increase. In the COLO205 xenograft model, tumor regression was observed even at a dose of 0.3 mg/kg. At a dosage of 1 mg/kg, a complete regression was obtained in 4 out of 6 mice in which the tumor degenerated to the point that tumor volume was not measurable.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1]. Yamaguchi T, Kakefuda R, Tajima N, Sowa Y, Sakai T. Antitumor activities of JTP-74057 (GSK1120212), a novel MEK1/2 inhibitor, on colorectal cancer cell lines in vitro and in vivo. Int J Oncol. 2011 Jul;39(1):23-31.