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Epigenetic changes of Raji Epstein–Barr viral genome in reponse to byrostatin treatment

ABSTRACT: We report the application of cut&tag technology for high-throughput profiling of histone modifications Raji Epstein–Barr viral genome in reponse to bryostatin treatment. Dual- and tri-methylation of lysine 4 on histone H3 protein indicate genes that are actively expressed/regulated. Tri-methylation of lysine 27 on histone H3 protein marks genes that are negatively regulated or suppressed for expression.

ORGANISM(S): Homo sapiens

PROVIDER: GSE192837 | GEO | 2022/01/05

REPOSITORIES: GEO

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Genome-wide epigenetic changes of leukemia cell lines in reponse to byrostatin treatment

Project description:We report the application of cut&tag technology for high-throughput profiling of histone modifications in leuemia cells in reponse to bryostatin treatment. We generated genome-wide chromatin-state landscape of NALM6, REH and Raji cells. Dual- and tri-methylation of lysine 4 on histone H3 protein indicate genes that are actively expressed/regulated. Tri-methylation of lysine 27 on histone H3 protein marks genes that are negatively regulated or suppressed for expressiom. We compared differential peaks for cells treated with or without bryostatin to demonstrate genes responding to bryostatin treatment on epigenetic level.

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Epigenetic changes of Raji Epstein–Barr viral genome in reponse to byrostatin treatment

Project description:Epigenetic changes of Raji Epstein–Barr viral genome in reponse to byrostatin treatment

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Project description:Expression of the TM4SF member CD9 on the human Burkitts lymphoma cell line Raji induced increased cell proliferation, motilty and adhesion to fibronectin. CD9 promoted increases in Raji cell proliferation was dependent upon histone deacetyalase (HDAC) activity as treatment with HDAC inhibitors trichostain A or cucurmin attenuated CD9 mediated increases in Raji cell proliferation. Gene expression of Raji cells stably expressing human CD9 via transfection with expression vector PRVCMVCD9 was compared with corresponding Mock transfected cell by microarray analysis using the Affymetrix U133 2.0 platform.

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Transcription profiling of human Burkitts lymphoma cells line Raji expressing the TM4SF member CD9

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Determine genes differentially expressed between Raji cells and a subline which is resistant to APTO-253 (Raji/253R)

Project description:To obtain further insight into the resistance mechanism, RNA-seq analysis was carried out on 3 independent samples of both the sensitive Raji and resistant Raji/253R cells. A gene-level differential expression analysis was performed by removing all genes with less than 50 reads across all 6 samples as genes with only low level expression can cause irregularities in differential expression analysis. Genes were considered to be differentially expressed if their adjusted p-value was less than the 0.05 level and their fold change was >2 in either direction. Among the 13,791 evaluable genes there were 1,012 that were significantly up-regulated in the Raji/253R cells and 704 genes that were significantly down regulated relative to the parental sensitive Raji cells. The ATP-binding cassette sub-family member ABCG2 was the most up-regulated gene with more than a thousand-fold increase in transcript level. Genes were considered to be differentially expressed if their adjusted p-value was less than the 0.05 level and their fold change was >2 in either direction.

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