CP-673451 is a potent and selective inhibitor of PDGFR with IC₅₀s of 10 and 1 nM for PDGFRα and PDGFRβ, respectively.

CP-673451 efficiently suppresses the PDGFR downstream signaling pathway. It inhibits phosphorylation of Akt, GSK-3β, p70S6, and S6 in A549 cells in a concentration-dependent manner. CP-673451 (0.0625-4 μM) significantly reduces the viability of NSCLC cell lines A549 and H1299 in a time- and concentration-dependent manner, with IC₅₀s of 0.49 and 0.61 μM, respectively. CP-673451 (1, 4 μM) induces apoptosis in non-small-cell lung cancer cells. CP-673451 (25, 100, or 400 nM) is effective at inhibiting migration and invasion of NSCLC cells by suppression of lamellipodia formation. CP-673451 and crenolanib show selective lethality toward cells with CA. U2OS cells treated with 1 to 4 μM CP-673451 or crenolanib show a ruffled cell surface as a sign for alterations of the cortical actin cytoskeleton. CP-673451 attenuates PDGF-BB-induced signaling, and significantly enhances the phosphorylation of PDGFR-β downstream effectors, Akt and MEK. CP-673,451 (0.5 μM) regulates cell proliferation through mechanisms involving reduced phosphorylation of GSK-3α and GSK-3β. CP-673,451 impairs rhabdosphere-forming capacity in both RD and RUCH2 cultures. CP-673,451 inhibits PDGFR-β in PAE-β cells with an IC₅₀ value of 6.4 nM. Besides, CP-673,451 incubation in H526 and PAE-β cells results in an IC₅₀ value of 1.1 μM against c-kit^[4].

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

CP-673451 (20 mg/kg) leads to a medium suppression of tumor growth, while high-dose CP-673451 (40 mg/kg) strongly inhibits tumor growth in mice without significant weitht loss. CP-673,451 (10, 33, and 100 mg/kg, p.o., b.i.d) inhibits the growth of Colo205 tumor in a dose-dependent manner, and similar tumor growth inhibition experiments completes on LS174T, H460, and U87MG xenografts, with no signs of morbidity or weight loss^[4].

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

CP-673451 (20 mg/kg) leads to a medium suppression of tumor growth, while high-dose CP-673451 (40 mg/kg) strongly inhibits tumor growth in mice without significant weitht loss. CP-673,451 (10, 33, and 100 mg/kg, p.o., b.i.d) inhibits the growth of Colo205 tumor in a dose-dependent manner, and similar tumor growth inhibition experiments completes on LS174T, H460, and U87MG xenografts, with no signs of morbidity or weight loss^[4].

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

• . Xi Y, et al. CP-673451, a platelet-derived growth-factor receptor inhibitor, suppresses lung cancer cell proliferation and migration. Onco Targets Ther. 2014 Jul 3;7:1215-21.  [Content Brief]

  . Konotop G, et al. Pharmacological Inhibition of Centrosome Clustering by Slingshot-Mediated Cofilin Activation and Actin Cortex Destabilization. Cancer Res. 2016 Nov 15;76(22):6690-6700  [Content Brief]

  . Ehnman M, et al. Distinct effects of ligand-induced PDGFRα and PDGFRβ signaling in the human rhabdomyosarcoma tumor cell and stroma cell compartments. Cancer Res, 2013, 73(7), 2139-2149.  [Content Brief]

  [4]. Roberts WG, et al. Antiangiogenic and antitumor activity of a selective PDGFR tyrosine kinase inhibitor, CP-673,451. Cancer Res, 2005, 65(3), 957-966.  [Content Brief]