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Epitranscriptomics & Cancer Adaptation : A.David

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Our research work focuses on the contribution of post-transcriptional mechanisms on cancer cell adaptation, in particular RNA epigenetic & translational control.

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Added by amaraver
Last modified by informatique.ircm
Group name EquipeAM
Item Type Journal Article
Title Notch inhibition overcomes resistance to tyrosine kinase inhibitors in EGFR-driven lung adenocarcinoma
Creator Bousquet Mur et al.
Author Emilie Bousquet Mur
Author Sara Bernardo
Author Laura Papon
Author Maicol Mancini
Author Eric Fabbrizio
Author Marion Goussard
Author Irene Ferrer
Author Anais Giry
Author Xavier Quantin
Author Jean-Louis Pujol
Author Olivier Calvayrac
Author Herwig P. Moll
Author Yaël Glasson
Author Nelly Pirot
Author Andrei Turtoi
Author Marta Cañamero
Author Kwok-Kin Wong
Author Yosef Yarden
Author Emilio Casanova
Author Jean-Charles Soria
Author Jacques Colinge
Author Christian W. Siebel
Author Gilles Favre
Author Luis Paz-Ares
Author Antonio Maraver
Abstract EGFR-mutated lung adenocarcinoma patients treated with gefitinib and osimertinib show a therapeutic benefit limited by the appearance of secondary mutations, such as EGFRT790M and EGFRC797S. It is generally assumed that these secondary mutations render EGFR completely unresponsive to the inhibitors, but contrary to this, we uncovered here that gefitinib and osimertinib increased STAT3 phosphorylation (p-STAT3) in EGFRT790M and EGFRC797S tumoral cells. Interestingly, we also found that concomitant Notch inhibition with gefitinib or osimertinib treatment induced a p-STAT3-dependent strong reduction in the levels of the transcriptional repressor HES1. Importantly, we showed that tyrosine kinase inhibitor-resistant tumors, with EGFRT790M and EGFRC797S mutations, were highly responsive to the combined treatment of Notch inhibitors with gefitinib or osimertinib, respectively. Finally, in patients with EGFR mutations treated with tyrosine kinase inhibitors, HES1 protein levels increased during relapse and correlated with shorter progression-free survival. Therefore, our results offer a proof of concept for an alternative treatment to chemotherapy in lung adenocarcinoma osimertinib-treated patients after disease progression.
Publication The Journal of Clinical Investigation
Volume 130
Issue 2
Pages 612-624
Date 2020-02-03
Journal Abbr J Clin Invest
Language eng
DOI 10.1172/JCI126896
ISSN 1558-8238
Library Catalog PubMed
Extra 00004 PMID: 31671073 PMCID: PMC6994195
Tags Acrylamides, Adenocarcinoma of Lung, Amino Acid Substitution, Aniline Compounds, Animals, corresponding, Drug Resistance, Neoplasm, Drug therapy, ErbB Receptors, first, first-last-corresponding, Gefitinib, last, Lung Neoplasms, Mice, Mice, Transgenic, Mutation, Missense, Neoplasm Proteins, Oncology, original, premium_IRCM, Protein Kinase Inhibitors, STAT3 Transcription Factor, top, Transcription Factor HES-1
Date Added 2021/02/10 - 12:42:12
Date Modified 2025/01/10 - 11:14:08
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