Cas No.: | 212391-63-4 |
Chemical Name: | 6-(2,6-Dichlorophenyl)-2-[[4-[2-(diethylamino)ethoxy]phenyl]amino]-8-methylpyrido[2,3-d]pyrimidin-7(8H)-one dihydrochloride |
Synonyms: | PD-166285;PD 166285;PD 0166285 |
SMILES: | O=C1N(C)C2=NC(NC3=CC=C(OCCN(CC)CC)C=C3)=NC=C2C=C1C4=C(Cl)C=CC=C4Cl.[H]Cl.[H]Cl |
Formula: | C26H29Cl4N5O2 |
M.Wt: | 585.35 |
Purity: | >98% |
Sotrage: | 2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO |
Description: | PD0166285 dihydrochloride, a substrate of P-gp, is a WEE1 inhibitor and a weak Myt1 inhibitor with IC50 values of 24 and 72 nM, respectively. PD0166285 dihydrochloride exhibits an IC50 of 3.433 μM for Chk1[1]. |
Target: | IC50: 24 nM (WEE1), 72 nM (Myt1), 3.433 μM (Chk1)[1]. |
In Vivo: | Animal Model: Wild-type, Abcg2-/-, Abcb1a/b-/- and Abcb1a/b;Abcg2-/- FVB mice[2]. Dosage: 5 mg/kg. Administration: IV. Result: Cmax is about 400 ng/mL. P-gp, but not BCRP, limited the brain penetration of PD0166285. |
In Vitro: | PD0166285 (0.5 μM) dramatically inhibits irradiation-induced Cdc2 phosphorylation at the Tyr-15 and Thr-14 in seven of seven cancer cell lines[1]. PD0166285 sensitizes radiation-induced cell killing in p53 mutant HT29 cells and in the E6-transfected, p53-null ovarian cancer cell line PA-1 but to a lesser extent in p53 wild-type PA-1 cells. PD0166285 abrogates irradiation-induced G2 arrest and significantly increases mitotic cell populations[1]. PD0166285 acts as a radiosensitizer to sensitize cells to radiation-induced cell death with a sensitivity enhancement ratio of 1.23[1]. Western Blot Analysis[1] Cell Line: Human and mouse cancer cell lines (HCT116, HT29, DLD-1, HCT8, H460, HeLa, C 26). Concentration: 0.5 μM. Incubation Time: 4 h. Result: Inhibited Cdc2Y15 and CdcT14 phosphorylation. |
References: | [1]. Wang Y, et al. Radiosensitization of p53 mutant cells by PD0166285, a novel G(2) checkpoint abrogator. Cancer Res. 2001 Nov 15;61(22):8211-7. [2]. Mark C de Gooijer, et al. ATP-binding cassette transporters limit the brain penetration of Wee1 inhibitors. Invest New Drugs. 2018 Jun;36(3):380-387. |