Ceralasertib (AZD6738) is an orally active and bioavailable inhibitor of ATR kinase with an IC50 of 1 nM.
体外研究
Ceralasertib (AZD6738) is a potent inhibitor of ATR kinase activity with an IC50 of 0.001 μM against the isolated enzyme and 0.074 μM against ATR kinase-dependent CHK1 phosphorylation in cells. Ceralasertib (AZD6738) induces cell death and senescence in non-small cell lung cancer (NSCLC) cell lines. Ceralasertib (AZD6738) impairs viability of four Kras mutant cell lines: H23, H460, A549, and H358. , with the lowest GI50 and greatest maximal inhibition in H460 and H23 cells (1.05 μM, 88.0% and 2.38 μM, 86.2%, respectively). Ceralasertib (AZD6738) potentiates the cytotoxicity of CDDP and NSC 613327 in NSCLC cell lines with intact ATM kinase signaling, and potently synergizes with CDDP in ATM-deficient NSCLC cells. Ceralasertib (AZD6738) inhibits human breast cancer cell lines with IC50 values less than 1 μM using MTT assay. Ceralasertib (AZD6738) induces cell cycle arrest and apoptosis. It downregulates DNA damage response molecules and cell proliferative signaling molecules.
体内研究
Daily administration of Ceralasertib (AZD6738) and ATR kinase inhibition for 14 consecutive days is tolerated in mice and enhances the therapeutic efficacy of CDDP in xenograft models. Remarkably, the combination of CDDP and Ceralasertib (AZD6738) resolves ATM-deficient lung cancer xenografts.
分子式
C20H24N6O2S
分子量
412.51
CAS号
1352226-88-0
运输条件
Room temperature in continental US; may vary elsewhere.