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- W4311564478 abstract "Abstract Normal epithelial cells exert their competitive advantage over RasV12-transformed cells and eliminate them into the apical lumen via cell competition. However, the internal or external factors that compromise cell competition and provoke carcinogenesis remains unknown. In this study, we examined the effect of sequential accumulation of gene mutations, mimicking multi-sequential carcinogenesis on RasV12-induced cell competition in intestinal epithelial tissues. Consequently, we found that directionality of RasV12-cell extrusion in Wnt-activated epithelia is reversed, and transformed cells are delaminated into the basal lamina via non-cell autonomous MMP21 upregulation. Subsequently, diffusively infiltrating, transformed cells develop into highly invasive carcinomas. Elevated production of MMP21 is elicited partly through NF-κB signaling, blockage of which restores apical elimination of RasV12 cells. We further found that the NF-κB-MMP21 axis is significantly bolstered in early colorectal carcinoma in humans. Collectively, this study shows that cells with high mutational burdens exploit cell competition for their benefit by behaving as unfit cells, endowing them with an invasion advantage." @default.
- W4311564478 created "2022-12-27" @default.
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- W4311564478 date "2022-12-15" @default.
- W4311564478 modified "2023-10-16" @default.
- W4311564478 title "Wnt activation-induced disturbance of cell competition causes diffuse invasion of transformed cells through upregulation of NF-κB-mediated MMP21" @default.
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- W4311564478 doi "https://doi.org/10.21203/rs.3.rs-2314559/v1" @default.
- W4311564478 hasPublicationYear "2022" @default.
- W4311564478 type Work @default.