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- W2989652938 abstract "Abstract The appearance of genetic changes in human pluripotent stem cells (hPSCs) presents a concern for their use in research and regenerative medicine. Variant hPSCs harbouring recurrent culture-acquired aneuploidies display growth advantages over wild-type diploid cells, but the mechanisms yielding a drift from predominantly wild-type to variant cell populations remain poorly understood. Here we show that the dominance of variant clones in mosaic cultures is enhanced through competitive interactions resulting in elimination of wild-type cells. This elimination occurs through corralling and mechanical compression by faster growing variants, causing a redistribution of F-actin and sequestration of YAP in the cytoplasm that induces apoptosis in wild-type cells. Importantly, YAP overexpression in wild-type cells is sufficient to alleviate their loser phenotype. Our results demonstrate that hPSC fate is coupled to mechanical cues imposed by neighbouring cells and reveal that hijacking this mechanism allows variants to achieve clonal dominance in cultures." @default.
- W2989652938 created "2019-12-05" @default.
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- W2989652938 date "2019-11-25" @default.
- W2989652938 modified "2023-10-16" @default.
- W2989652938 title "Genetically variant human pluripotent stem cells selectively eliminate wild-type counterparts through YAP-mediated cell competition" @default.
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- W2989652938 doi "https://doi.org/10.1101/854430" @default.
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