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Expression of villi-specific genes reveals the novel prognostic biomarkers in human various cancers

ABSTRACT: The relationship between oncogenesis and embryo development are surprised similarity, early placental villi development from 6 weeks to 10 weeks of pregnancy were profiled using microarrays. Through comparative villi and mature placenta data, we identified villi-specific genes that were highly expressed in villus. The large fraction of villi-specific genes dysregulated in transcriptional level across tumors and most of villi-specific genes up-regulated in human cancers. Then by the GO enrichment results, we selected 5 immune-related genes, 6 proliferation-related genes, 8 focal adhesion-related genes that were found to have reported with genomic alterations. The expression of three group genes predicted poor prognosis of a subset of tumors. Our strategy provided a fresh idea for discovering the novel prognostic biomarkers of tumors.

ORGANISM(S): Homo sapiens

PROVIDER: GSE93520 | GEO | 2017/10/31

SECONDARY ACCESSION(S): PRJNA360984

REPOSITORIES: GEO

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Project description:Genes encoding transcription factors function as hubs in gene regulatory networks because they encode DNA-binding proteins, which bind to promoters that carry their binding sites. In the present work we have studied gene regulatory networks defined by genes with transcripts belonging to different mRNA abundance classes in the small intestinal epithelial cell. The focus is the rewiring that occurs in transcription factor hubs in these networks during the differentiation of the small intestinal epithelial cell while it migrates along the crypt-villus axis and during its development from a fetal endodermal cell to a mature adult villus epithelial cell. We have generated transcriptome data for mouse small intestinal villus, crypt and fetal intestinal epithelial cells. In addition we have generated metabolome data from crypt and villus cells. Our results show that the intestinal crypt transcription factor hubs that are rewired during differentiation are involved in the cell cycle process (E2F, NF-Y) and stem cell maintenance (c-Myc). In contrast the villi are dominated by a HNF-4 villus hub, which is rewired during differentiation by the addition of network genes with relevance for lipoprotein synthesis and lipid absorption. Moreover, we have identified a villus NF-kB hub, which was revealed by comparison of the villus and endoderm transcriptomes. The rewiring of the NF-kB villus hub during intestinal development reflects transcriptional activity established by host and microflora interactions. To aid in the mining of our results we have developed a web portal (http://gastro.imbg.ku.dk/mousecv/) allowing easy linkage between the transcriptomic data, biological processes and functions. Experiment Overall Design: Four different sample categories were analyzed. Experiment Overall Design: 1) Small intestinal crypts isolated form 12-weeks old C57BL/6 mice. These samples are in triplicates. Experiment Overall Design: 2) Small intestinal villi isolated form 12-weeks old C57BL/6 mice. These samples are in triplicates. Experiment Overall Design: 3) Embryonic day 12 mesenchyme. These samples are in quadruplicate. each sample is derived from a pool of mesenchymes (10-40) Experiment Overall Design: 4) Embryonic day 12 endoderm. These samples are in quadruplicate. each sample is derived from a pool of endoderms (10-40)

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Expression of villi-specific genes reveals the novel prognostic biomarkers in human various cancers

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