Abstract:
:Cancer persister cells tolerate anticancer drugs and serve as the founders of acquired resistance and cancer relapse. Here we show that a subpopulation of BRAFV600 mutant melanoma cells that tolerates exposure to BRAF and MEK inhibitors undergoes a reversible remodelling of mRNA translation that evolves in parallel with drug sensitivity. Although this process is associated with a global reduction in protein synthesis, a subset of mRNAs undergoes an increased efficiency in translation. Inhibiting the eIF4A RNA helicase, a component of the eIF4F translation initiation complex, abrogates this selectively increased translation and is lethal to persister cells. Translation remodelling in persister cells coincides with an increased N6-methyladenosine modification in the 5'-untranslated region of some highly translated mRNAs. Combination of eIF4A inhibitor with BRAF and MEK inhibitors effectively inhibits the emergence of persister cells and may represent a new therapeutic strategy to prevent acquired drug resistance.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Shen S,Faouzi S,Bastide A,Martineau S,Malka-Mahieu H,Fu Y,Sun X,Mateus C,Routier E,Roy S,Desaubry L,André F,Eggermont A,David A,Scoazec JY,Vagner S,Robert Cdoi
10.1038/s41467-019-13360-6subject
Has Abstractpub_date
2019-12-16 00:00:00pages
5713issue
1issn
2041-1723pii
10.1038/s41467-019-13360-6journal_volume
10pub_type
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