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Dryad

Sensing of extracellular L-Proline availability by the integrated stress response determines the outcome of cell competition

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May 29, 2025 version files 22.94 GB

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Abstract

To address the mechanism by which ATF4 determines the outcome of cell competition, we performed transcriptomic comparisons by bulk RNA-seq analysis of up-regulated, down-regulated and background genes related to the DE analysis of homogenous cultures of Atf4-/- versus wild-type mouse ES cells and of p53-/-; Atf4-/- versus p53-/- mouse ES cells at day 3 of differentiation. Differential cellular pathway analysis by KEGG enrichment revealed that the topmost downregulated pathways in both sets of cells with Atf4 mutations were those associated with non-essential amino acid biosynthesis, transport and metabolism