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• W2989578632 endingPage "120" @default.
• W2989578632 startingPage "109" @default.
• W2989578632 abstract "Abstract Excessive RTK signaling, often caused by activating mutations in Ras, Raf and/or MEK, occurs in most human tumors. Intriguingly, confirmed cancer-driver mutations in the downstream effector kinase, ERK, have not been reported. To test if... Receptor tyrosine kinase signaling plays prominent roles in tumorigenesis, and activating oncogenic point mutations in the core pathway components Ras, Raf, or MEK are prevalent in many types of cancer. Intriguingly, however, analogous oncogenic mutations in the downstream effector kinase ERK have not been described or validated in vivo. To determine if a point mutation could render ERK intrinsically active and oncogenic, we have assayed in Drosophila the effects of a mutation that confers constitutive activity upon a yeast ERK ortholog and has also been identified in a few human tumors. Our analyses indicate that a fly ERK ortholog harboring this mutation alone (RolledR80S), and more so in conjunction with the known sevenmaker mutation (RolledR80S+D334N), suppresses multiple phenotypes caused by loss of Ras-Raf-MEK pathway activity, consistent with an intrinsic activity that is independent of upstream signaling. Moreover, expression of RolledR80S and RolledR80S+D334N induces tissue overgrowth in an established Drosophila cancer model. Our findings thus demonstrate that activating mutations can bestow ERK with pro-proliferative, tumorigenic capabilities and suggest that Drosophila represents an effective experimental system for determining the oncogenicity of ERK mutants and their response to therapy." @default.
• W2989578632 created "2019-12-05" @default.
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• W2989578632 date "2020-01-01" @default.
• W2989578632 modified "2023-09-25" @default.
• W2989578632 title "An Activating Mutation in ERK Causes Hyperplastic Tumors in a <i>scribble</i> Mutant Tissue in <i>Drosophila</i>" @default.
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• W2989578632 doi "https://doi.org/10.1534/genetics.119.302794" @default.
• W2989578632 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6944410" @default.
• W2989578632 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33954659" @default.
• W2989578632 hasPublicationYear "2020" @default.
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