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Ref Type Journal Article
PMID (26090892)
Authors Otani H, Yamamoto H, Takaoka M, Sakaguchi M, Soh J, Jida M, Ueno T, Kubo T, Asano H, Tsukuda K, Kiura K, Hatakeyama S, Kawahara E, Naomoto Y, Miyoshi S, Toyooka S
Title TAE226, a Bis-Anilino Pyrimidine Compound, Inhibits the EGFR-Mutant Kinase Including T790M Mutant to Show Anti-Tumor Effect on EGFR-Mutant Non-Small Cell Lung Cancer Cells.
Journal PloS one
Vol 10
Issue 6
Date 2015
URL
Abstract Text TAE226, a bis-anilino pyrimidine compound, has been developed as an inhibitor of focal adhesion kinase (FAK) and insulin-like growth factor-I receptor (IGF-IR). In this study, we investigated the effect of TAE226 on non-small-cell lung cancer (NSCLC), especially focusing on the EGFR mutational status. TAE226 was more effective against cells with mutant EGFR, including the T790M mutant, than against cells with wild-type one. TAE226 preferentially inhibited phospho-EGFR and its downstream signaling mediators in the cells with mutant EGFR than in those with wild-type one. Phosphorylation of FAK and IGF-IR was not inhibited at the concentration at which the proliferation of EGFR-mutant cells was inhibited. Results of the in vitro binding assay indicated significant differences in the affinity for TAE226 between the wild-type and L858R (or delE746_A750) mutant, and the reduced affinity of ATP to the L858R (or delE746_A750) mutant resulted in good responsiveness of the L858R (or delE746_A750) mutant cells to TAE226. Of interest, the L858R/T790M or delE746_A750/T790M mutant enhanced the binding affinity for TAE226 compared with the L858R or delE746_A750 mutant, resulting in the effectiveness of TAE226 against T790M mutant cells despite the T790M mutation restoring the ATP affinity for the mutant EGFR close to that for the wild-type. TAE226 also showed higher affinity of about 15-fold for the L858R/T790M mutant than for the wild-type one by kinetic interaction analysis. The anti-tumor effect against EGFR-mutant tumors including T790M mutation was confirmed in mouse models without any significant toxicity. In summary, we showed that TAE226 inhibited the activation of mutant EGFR and exhibited anti-proliferative activity against NSCLCs carrying EGFR mutations, including T790M mutation.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
EML4 - ALK lung non-small cell carcinoma sensitive TAE226 Preclinical Actionable In a preclinical study, TAE226 treatment inhibited proliferation of non-small cell lung carcinoma cell lines harboring EML4-ALK fusion in culture (PMID: 26090892). 26090892
BRAF G466V lung non-small cell carcinoma sensitive TAE226 Preclinical Actionable In a preclinical study, TAE226 treatment inhibited proliferation of non-small cell lung carcinoma cell lines harboring BRAF G466V mutation in culture (PMID: 26090892). 26090892
BRAF G469A lung non-small cell carcinoma sensitive TAE226 Preclinical Actionable In a preclinical study, TAE226 treatment inhibited proliferation of non-small cell lung carcinoma cell lines harboring BRAF G469A mutation in culture (PMID: 26090892). 26090892