AG-1478是一种选择性EGFR抑制剂，在无细胞试验中IC50为3 nM，对HER2-Neu，PDGFR，Trk，Bcr-Abl和InsR几乎没有作用活性。AG-1478（Tyrphostin AG-1478）通过靶向 phosphatidylinositol 4-kinase IIIα (PI4KA) 抑制脑心肌炎病毒encephalomyocarditis virus (EMCV)和丙型肝炎病毒hepatitis c virus (HCV)。
| CAS No. | 153436-53-4,175178-82-2 |
| 生物活性 | AG-1478 (Tyrphostin AG-1478) is a selective EGFR tyrosine kinase inhibitor with IC50 of 3 nM. AG-1478 has antiviral effects against HCV and encephalomyocarditis virus (EMCV). |
| 分子式 | C16H14ClN3O2 |
| 分子量 | 315.75 |
| 储存条件 | Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 溶解性数据 | DMSO : ≥ 100 mg/mL (316.71 mM) |
| 体内研究 | Administration of AG-1478 (AG1478) significantly reduces myocardial inflammation, fibrosis, apoptosis, and dysfunction in both two obese mouse models. ApoE mice are first fed with HFD for 8 weeks (ApoE-HFD), and then administrated with AG-1478 (10 mg/kg/day) or 542 (10 mg/kg/day) for another 8 weeks by oral gavage. AG-1478 or 542 treatment blocks HFD induced cardiac EGFR phosphorylation in vivo, without affecting the plasma level of low density lipoprotein (LDL) and total triglyceride (TG). Administration of EGF (10 nM) leads to a robust and reproducible elevation in EGFR phosphorylation that can be blocked by AG-1478 (AG1478), a known inhibitor of EGFR phosphorylation. Increasing doses of Polyfect (PF) result in a significant reduction in EGF-induced EGFR phosphorylation (p<0.05) but this is to a lesser extent than observed with AG1478. |
| 体外研究 | AG-1478 (AG1478) is irreversible for growth regulation of human lung (A549) and prostate (DU145) cancer cell lines, cultured in chemically defined DMEM/F12 medium. AG-1478 seems to be more effective at lower concentrations, but is unable to completely inhibit growth of A549 cells. Inhibition of EGFR by specific tyrosine kinase inhibitor AG-1478 (AG1478) significantly decreases the angiotensin II-mediated synthesis of TGF-β and fibronectin by cardiac fibroblasts. EGFR is pharmacologically inhibited by small-molecule inhibitor AG-1478 with IC50 of 4 nM. Both Polyfect (PF) and Superfect (SF) treatment lead to increased apoptosis in HEK 293 cells to a similar extent as assessed by flow cytometry. The antioxidant, tempol, significantly reduced dendrimer-mediated apoptosis for both PF and SF. AG-1478 (AG1478), at a 10-fold higher dose (100 μM) than used in signaling studies, is used as a positive control and significantly induced apoptosis in HEK 293 cells. |
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