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De Novo T790M Mutation in an L858R Epidermal Growth Factor Receptor Mutant-Associated Lung Adenocarcinoma by Fujiwara, Takumi; Kobayashi, Tetsu; Yasuma, Taro; DâAlessandro-Gabazza, Corina N.; Toda, Masaaki; Fujimoto, Hajime; Fujiwara, Kentaro; Takeshita, Atsuro; Nishihama, Kota; Okano, Tomohito; DâAlessandro, Valeria Fridman; Takei, Yoshiyuki; Hataji, Osamu; Gabazza, Esteban C is a Medicine article available to read on EtoBox.

What is De Novo T790M Mutation in an L858R Epidermal Growth Factor Receptor Mutant-Associated Lung Adenocarcinoma about?

Background: Lung cancer is the leading cause of mortality for cancer worldwide. A point mutation in exon 21 of the epidermal growth factor receptor resulting in the substitution of arginine for leucine at position 858 (L858R) is a frequent cause of lung adenocarcinoma. Tyrosine kinase inhibitors are effective for treating patients with lung cancer associated with mutant epidermal growth factor receptors but most tumors become resistant shortly after treatment. The substitution of methionine for threonine at position 790 (T790M) on exon 20 is the most frequently acquired mutation leading to resistance to tyrosine kinase inhibitors. Whether the T790M mutation occurred after tyrosine kinase inhibitor therapy or it already existed before therapy is unclear. Methods: Here, we developed mice with tetracycline-inducible lung-specific expression of the full-length genomic DNA of the human epidermal growth factor receptor containing an L858R mutation or both L858R and T790M mutations and evaluated de novo T790M mutation in untreated transgenic mice carrying a single L858R EGFR mutation. Results: The L858R mutation-associated lung adenocarcinoma acquired de novo T790 mutation without previou

Who reads De Novo T790M Mutation in an L858R Epidermal Growth Factor Receptor Mutant-Associated Lung Adenocarcinoma?

Author

Fujiwara, Takumi; Kobayashi, Tetsu; Yasuma, Taro; DâAlessandro-Gabazza, Corina N.; Toda, Masaaki; Fujimoto, Hajime; Fujiwara, Kentaro; Takeshita, Atsuro; Nishihama, Kota; Okano, Tomohito; DâAlessandro, Valeria Fridman; Takei, Yoshiyuki; Hataji, Osamu; Gabazza, Esteban C

Publisher

MDPI AG; Multidisciplinary Digital Publishing Institute (MDPI); Basel: MDPI, 2009- (ISSN 2072-6694)

Published

2020

Language

EN

Field

Medicine (Health Sciences)