Molecular Target Characterization and Antimyeloma Activity of the Novel, Insulin-like Growth Factor 1 Receptor Inhibitor, GTx-134 was written by Liang, Sheng-Ben;Yang, Xiu-Zhi;Trieu, Young;Li, Zhihua;Zive, Jessica;Leung-Hagesteijn, Chungyee;Wei, Ellen;Zozulya, Sergey;Coss, Christopher C.;Dalton, James T.;Fantus, Ivan George;Trudel, Suzanne. And the article was included in Clinical Cancer Research in 2011.Computed Properties of C28H41N7O3 The following contents are mentioned in the article:
PURPOSE: Therapeutic strategies that target insulin-like growth factor 1 receptor (IGF-1R) hold promise in a wide variety of cancers including multiple myeloma (MM). In this study, we describe GTx-134, a novel small-mol. inhibitor of IGF-1R and insulin receptor (IR) and characterized its antitumor activity in preclin. models of MM. Exptl. Design: The activity of GTx-134 as a single agent and in combination was tested in MM cell lines and primary patient samples. Downstream effector proteins and correlation with apoptosis was evaluated. Cytotoxcity in bone marrow stroma coculture experiments was assessed. Finally, the in vivo efficacy was evaluated in a human myeloma xenograft model. RESULTS: GTx-134 inhibited the growth of 10 of 14 myeloma cell lines (<5 μmol/L) and induced apoptosis. Sensitivity to GTx-134 correlated with IGF-1R signal inhibition. Expression of MDR-1 and CD45 were associated with resistance to GTx-134. Coculture with insulin-growth factor-1 (IGF-1) or adherence to bone marrow stroma conferred modest resistance, but did not overcome GTx-134-induced cytotoxicity. GTx-134 showed in vitro synergies when combined with dexamethasone or lenalidomide. Further, GTx-134 enhanced the activity of PD173074, a fibroblast growth factor receptor 3 (FGFR3) inhibitor, against t(4;14) myeloma cells. Therapeutic efficacy of GTx-134 was shown against primary cells and xenograft tumors. Although dysregulation of glucose homeostasis was observed in GTx-134-treated mice, impairment of glucose tolerance was modest. CONCLUSIONS: These studies support the potential therapeutic efficacy of GTx-134 in MM. Further, they provide a rationale for clin. application in combination with established antimyeloma treatments and novel targeted therapies. Clin Cancer Res; 17(14); 4693-704. This study involved multiple reactions and reactants, such as 1-(tert-Butyl)-3-(2-((4-(diethylamino)butyl)amino)-6-(3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7-yl)urea (cas: 219580-11-7Computed Properties of C28H41N7O3).
1-(tert-Butyl)-3-(2-((4-(diethylamino)butyl)amino)-6-(3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7-yl)urea (cas: 219580-11-7) belongs to pyrimidine derivatives. Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. Therapy for fungal infections is based mainly on four classes of antifungals: azoles, echinocandins, polyenes, and pyrimidine analogs.Computed Properties of C28H41N7O3
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia