PD 0332991 (Palbociclib) (Synonyms: PD0332991;PD-0332991;PD 0332991)

Cell lines

MDA-MB-453 cells

Preparation method

The solubility of this compound in DMSO is

Reaction Conditions

80 nM, 24 hours

Applications

MDA-MB-453 breast carcinoma cells exposed to varying concentrations of PD 0332991 for 24 hours showed a significant increase in the percentage of cells in G1 in the presence of as little as 0.04 μmol/L PD 0332991 with a concomitant decline in other phases of the cell cycle. Maximum effects were attained at 0.08 μmol/L and an exclusive G1 arrest was maintained even at concentrations as high as 10 μmol/L, consistent with the complete absence of any other effects on the cell cycle.

Animal models

Mice bearing Colo-205 colon carcinoma xenografts

Dosage form

Oral administration, 150 or 75 mg/kg, daily for 14 days

Applications

Administration of PD 0332991 produced rapid tumor regressions and a corresponding tumor growth delay of about 50 days with >1 log of tumor cell kill at the highest dose tested. At 37.5 mg/kg, the tumor slowly regressed during treatment. Even at doses as low as 12.5 mg/kg, a 13-day growth delay was obtained indicating a 90% inhibition of tumor growth rate.

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] Fry D W, Harvey P J, Keller P R, et al. Specific inhibition of cyclin-dependent kinase 4/6 by PD 0332991 and associated antitumor activity in human tumor xenografts. Molecular cancer therapeutics, 2004, 3(11): 1427-1438.