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Accession IconSRP059641

Mus musculus Transcriptome or Gene expression

Organism Icon Mus musculus
Sample Icon 4 Downloadable Samples
Technology Badge IconIllumina HiSeq 2500

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To investigate the paracrine effects of stromal elements on cancer cells, we developed a “stromal” culture system, which incorporates structural and diffusible stroma-derived elements into homotypic cultures amenable to functional genomics and metabolomics. Here we show that microenvironmental cues co-regulate cancer metabolism and gene expression. Stromal inputs broadly influenced histone acetylation in the cancer epigenome, which coincided with induction of genes implicated in anabolic metabolism and inflammation. The gene expression and metabolic changes induced by stromal factors overlap with those previously identified following oncogenic Kras, suggesting functional complementarity between cell-autonomous and microenvironmental pathways. Finally, we implicate the BET family of epigenetic readers as key transducers of stromal inputs to drive alterations in gene expression. This work suggests paracrine epigenome regulation as a conduit through which stromal signals drive metabolic and immune adaptation to a challenging tumor microenvironment.
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