Identify the role of host ATF4 on CAFs in the tumor microenvironment of small size B16F10 tumors
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ABSTRACT: To delineate the role of host ATF4 in the sequence of events leading to tumor growth, we performed transcriptional profiling at the single-cell level (scRNA-seq) in smaller (150 mm3) size B16F10 tumors grown in Atf4wt/wt and Atf4D/D mice. Among others, we observed striking differences in gene expression in a cluster that corresponds to CAFs. In this cluster, we identified 148 DE genes, including a significant downregulation of Col1a1 and Col1a2 in the Atf4D/D mice-grown tumors. Notably, the expression levels of aSMA and Pdgfrb were nearly absent in the tumors grown in Atf4D/D mice. Finally, after CAFs subclustering, we identified the vCAFs (vascular CAFs) that are considered essential for vascular development and angiogenesis to be significantly reduced in the Atf4D/D mice.
ORGANISM(S): Mus musculus
PROVIDER: GSE159995 | GEO | 2022/05/10
REPOSITORIES: GEO
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