AG-1478 (Tyrphostin AG-1478)
Catalog No.S2728 Synonyms: NSC 693255
Molecular Weight(MW): 315.75
AG-1478 (Tyrphostin AG-1478) is a selective EGFR inhibitor with IC50 of 3 nM in cell-free assays, almost no activity on HER2-Neu, PDGFR, Trk, Bcr-Abl and InsR.
Cited by 7 Publications
3 Customer Reviews
BPA 1 nM, G-1 (a specific agonist of GPR30) alone (10 nM) or after a 90-min pretreatment with G15 (a specific antagonist of GPR30, 1 uM), PD 98059 (an ERK1/2 antagonist, 10 uM), AG-1478 (a potent antagonist of EGFR, 10 uM), or the mixture (G15, PD 98059, and AG-1478). ERK1/2 phosphorylation in TM4 cells exposure to different compounds with the concentrations mentioned above for 15 min. Values shown are expressed in the percentage of control (steroid-free medium) given as the mean ?SD of three independent experiments (n = 3). *p < 0.05 compared with control; **p < 0.01 compared with control.
Toxicol Lett 2014 226(1), 81-9. AG-1478 (Tyrphostin AG-1478) purchased from Selleck.
The inhibition of tyrosine kinase activity of EGFR abolished a morphological change associated with EMT (A) and EGF-mediated TACC3 induction (B). Cells were treated with EGF or EGF+AG1478 for 24 h and then subjected to western blot analysis. β-actin was used as a loading control.The intensity of bands was quantified using imageJ software and normalized to β-actin.
PLoS One, 2013, 8(8): e70353. AG-1478 (Tyrphostin AG-1478) purchased from Selleck.
A549 cells were treated with G15 (a specific antagonist of GPR30, 1 uM), AG1478 (a potent antagonist of EGFR, 10 uM), BPA (10-5 M) alone for 15 min or BPA after a 90-min pretreatment with G15 or AG1478 for 15 min. Then the expression of p-ERK1/2 and total ERK1/2 were measured by western blot analysis.
Biomed Pharmacother 2014 10.1016/j.biopha.2014.09.003. AG-1478 (Tyrphostin AG-1478) purchased from Selleck.
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|Description||AG-1478 (Tyrphostin AG-1478) is a selective EGFR inhibitor with IC50 of 3 nM in cell-free assays, almost no activity on HER2-Neu, PDGFR, Trk, Bcr-Abl and InsR.|
AG-1478 is high selective over ErbB2 and PDGFR with IC50 of >100 μM.  AG-1478 preferentially inhibits U87MG cells expressing truncated EGFR with IC50 of 8.7 μM, compared to those expressing endogenous wt EGFR or overexpressing exogenous wt EGFR with IC50 of 34.6 μM and 48.4 μM, respectively, and inhibits the DNA synthesis with IC50 of 4.6 μM, 19.67 μM, and 35.2 μM, respectively. AG-1478 also preferentially inhibits the tyrosine kinase activity and autophosphorylation of the ΔEGFR compared to endogenous or overexpressed exogenous wt EGFR.  AG-1478 (0.25 μM) abolishes the MAPK activation induced by Ang II, a Ca2+ ionophore as well as EGF but not by a phorbol ester or platelet-derived growth factor-BB in the VSMC.  AG-1478 inhibits EGF-induced mitogenesis of the BaF/ERX and LIM1215 cells with IC50 of 0.07 μM and 0.2 μM, respectively.  AG1478 is able to inhibit the function of ATP-binding cassette (ABC) transporters such as ABCB1 and ABCG2, with a more pronounced effect on ABCG2. 
|In vivo||Administration of AG-1478 blocks phosphorylation of the EGFR at the tumor site and inhibits the growth of A431 xenografts that overexpress the WT EGFR and glioma xenografts expressing the de2-7 EGFR. Even subtherapeutic doses of AG-1478 significantly enhance the efficacy of cytotoxic drugs, with the combination of AG-1478 and temozolomide displaying synergistic antitumor activity against human glioma xenografts. The combination of AG-1478 and an anti-EGFR antibody (mAb 806) displays additive and in some cases synergistic, antitumor activity against tumor xenografts overexpressing the EGFR.  The combination of AG-1478 (0.4 mg) with a single dose of 25 μCi 90Y-CHX-A''-DTPA-hu3S193 results in a significant enhancement of efficacy compared with either agent alone. |
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|In vitro||DMSO||25 mg/mL (79.17 mM)|
|Ethanol||13 mg/mL (41.17 mM)|
|In vivo||15% Captisol||30 mg/mL|
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