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Chromatin Profiling of 5637 bladder cancer cell line

ABSTRACT: In order to investigate epigenetic landscape and potential alterations in bladder, we established the chromatin profiling of 5637 cell line by ChIPseq for the following marks and transcription factor : H3K4me3, H3K9ac, H3K27me3, H3K9me3, H3K27ac, H3K4me1, CTCF and FOXA1.

ORGANISM(S): Homo sapiens

PROVIDER: GSE193811 | GEO | 2023/03/22

REPOSITORIES: GEO

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Transcriptomic analysis of 5637 bladder cancer cell line transfected with MAT1A plamid, 48 hours post transfection

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Genome-wide maping the chromatin status of 5637 cells following infection with Uropathogenic E.coli

Project description:We report the application of H3 Lysine9 acetylation (H3K9ac) immunoprecipitation coupled next generation sequencing (ChIP-seq) in human bladder epithelial cells 5637 following treatment with Urophathogenic Escherichia coli strain 536 (UPEC) or the mutant with deletion of both α-hemolysin (hlyA) genes in the UPEC 536 strain (hlyA double mutant = UPEC 536 HDM) or UPEC supplemented with acetate. We found dramatic depletion of H3K9ac peaks was observed in UPEC infected cells, which was partially rescued by supplementation of acetate. In contrast, H3K9ac peaks of untreated cells are comparable with HDM treated cells. A total 21834 merged peak regions were identified in untreated control, whilst UPEC infection significantly decreased the signal across the merged peak regions, which was rescued partially by adding acetate. Deacetylation and its rescue by addition of acetate were observed in a global manner and affected the vast majority of H3K9ac sites throughout the genome. This observation holds true for different classes of cis-regulatory elements. Analysis of average binding across all human transcriptional start sites analysis further revealed that UPEC treatment also decrease H3K9ac signals at promoter regions, and can be rescue by supplementation of acetate. Moreover H3K9ac signal is also correlated with gene expression pattern. This study established that UPEC infection could epigenetically manipulate the host cell gene expression.

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| phs001389 | dbGaP

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