Transcriptomics

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Epigenomic profiling reveals the key function of histone H3K9 methylation during tumor transformation process


ABSTRACT: To understand transcriptome and epigenome profilings alteration during breast cancer initiation and development, we constructed a in vitro breast cancer transformation model. And then, we use mRNA-Seq to uncover differential expression genes during breast cancer transformation process. For epigenomic profilings, we specificly analysis genome wide H3K9me2, H3K9me3,H3K4me3 and H3K27me3 modifications using ChIP-Seq. We found that H3K9 di and tri methylation decrease both in vitro breast cancer cell transformation model and in vivo clinical samples. Further more, we found KDM3A, a demethylase for H3K9 mono and di methylation, increase during the breast cancer model transformation process and clinical samples. KDM3A deficiency impairs the growth of those transformed cell lines and its overexpression promotes tumor formation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE64367 | GEO | 2016/04/08

SECONDARY ACCESSION(S): PRJNA270845

REPOSITORIES: GEO

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