METTL13 Methylation of eEF1A Increases Translational Output to Promote Tumorigenesis.
Cell
; 176(3): 491-504.e21, 2019 01 24.
Article
en En
| MEDLINE
| ID: mdl-30612740
ABSTRACT
Increased protein synthesis plays an etiologic role in diverse cancers. Here, we demonstrate that METTL13 (methyltransferase-like 13) dimethylation of eEF1A (eukaryotic elongation factor 1A) lysine 55 (eEF1AK55me2) is utilized by Ras-driven cancers to increase translational output and promote tumorigenesis in vivo. METTL13-catalyzed eEF1A methylation increases eEF1A's intrinsic GTPase activity in vitro and protein production in cells. METTL13 and eEF1AK55me2 levels are upregulated in cancer and negatively correlate with pancreatic and lung cancer patient survival. METTL13 deletion and eEF1AK55me2 loss dramatically reduce Ras-driven neoplastic growth in mouse models and in patient-derived xenografts (PDXs) from primary pancreatic and lung tumors. Finally, METTL13 depletion renders PDX tumors hypersensitive to drugs that target growth-signaling pathways. Together, our work uncovers a mechanism by which lethal cancers become dependent on the METTL13-eEF1AK55me2 axis to meet their elevated protein synthesis requirement and suggests that METTL13 inhibition may constitute a targetable vulnerability of tumors driven by aberrant Ras signaling.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Factor 1 de Elongación Peptídica
/
Metiltransferasas
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Aged
/
Animals
/
Female
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Humans
/
Male
Idioma:
En
Revista:
Cell
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos