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- W4387002137 abstract "Src family kinases (SFKs) are evolutionarily conserved proteins acting downstream of receptors and regulating cellular processes including proliferation, adhesion, and migration. Elevated SFK expression and activity correlate with progression of a variety of cancers. Here, using the Drosophila melanogaster border cells as a model, we report that localized activation of a Src kinase promotes an unusual behavior: engulfment of one cell by another. By modulating Src expression and activity in the border cell cluster, we found that increased Src kinase activity, either by mutation or loss of a negative regulator, is sufficient to drive one cell to engulf another living cell. We elucidate a molecular mechanism that requires integrins, the kinases SHARK and FAK, and Rho family GTPases, but not the engulfment receptor Draper. We propose that cell cannibalism is a result of aberrant phagocytosis, where cells with dysregulated Src activity fail to differentiate between living and dead or self versus non-self, thus driving this malignant behavior." @default.
- W4387002137 created "2023-09-26" @default.
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- W4387002137 date "2023-09-25" @default.
- W4387002137 modified "2023-09-29" @default.
- W4387002137 title "Activated Src kinase promotes cell cannibalism in <i>Drosophila</i>" @default.
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- W4387002137 doi "https://doi.org/10.1083/jcb.202302076" @default.
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