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Inhibition of a pathologic RBM39/MLL1 epigenomic regulatory complex with a dominant-negative peptides disrupts cancer cell transcription, proliferation and survival

ABSTRACT: We report high-throughput profiling of RBM39 and MLL1 chromatin occupancy; H3K4me3 marks in T47D Control, T47D RBM39 KD and PME cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of RBM39, MLL1 and H3K4me3 in T47D and PME cells. We found that more than 4500 regions were cofound by RBM39 and MLL1.

ORGANISM(S): Homo sapiens

PROVIDER: GSE169277 | GEO | 2021/04/13

REPOSITORIES: GEO

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Genome-wide chromatin occupancy of RBM39 and MLL1 in T47D cells

Project description:We report high-throughput profiling of RBM39 and MLL1 chromatin occupancy in T47D cells. By obtaining over four billion bases of sequence from chromatin immunoprecipitated DNA, we generated genome-wide chromatin-state maps of RBM39 and MLL1 in T47D cells. We found that more than 4500 regions were cofound by RBm39 and MLL1.

2021-04-13 | GSE144375 | GEO

Genome-wide chromatin occupancy of RBM39 and MLL1 in T47D cells

Project description:Genome-wide chromatin occupancy of RBM39 and MLL1 in T47D cells

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Next Generation Sequencing Facilitates Quantitative Analysis of RBM39 knockdown Transcriptomes in T47D cells

Project description:Methods: Total RNA was prepared from control and RBM39 siRNAs transfected in T47D cells and subsequently used for deep sequencing, in duplicates.

2021-04-13 | GSE144376 | GEO

Set1 and MLL1/2 target distinct sets of functionally different genomic loci in vivo: An in depth ChIP-seq analysis of H3K4me3 targets in vivo and upon Set1 and mll1 knockdown

Project description:Histone H3 lysine 4 trimethylation (H3K4me3) is known to correlate with both active and poised genomic loci, yet many questions remain regarding its functional roles in vivo. We identify functional genomic targets of two H3K4 methyltransferases, Set1 and MLL1/2, in both the stem cells (X1) and differentiated tissue (Xins) of the planarian flatworm Schmidtea mediterranea. We show that, despite their common substrate, these enzymes target distinct genomic loci in vivo, which are distinguishable by the footprint each enzyme leaves on the chromatin template, i.e., the breadth of the H3K4me3 peak. Whereas Set1 targets are broadly associated with the maintenance of the stem cell population, MLL1/2 targets are specifically enriched for genes involved in ciliogenesis. These data not only confirm that chromatin regulation is fundamental to planarian stem cell function, but also provide evidence for post-embryonic functional specificity of H3K4me3 methyltransferases in vivo. To test this, we looked at the H3K4me3 chromatin profile in WW, X1 and Xins cell types upon knockdown of set1, mll1/2, as well as WT. Examine differential binding of H3K4me3 in different experimental conditions. The experiment performed yielded a total of 58 samples.

2015-12-17 | E-GEOD-74153 | biostudies-arrayexpress

H3K36me3 is significantly more enriched at Set1-affected loci than at MLL1/2-affected loci in planarian stem cells

Project description:Histone H3 lysine 4 trimethylation (H3K4me3) is known to correlate with both active and poised genomic loci, yet many questions remain regarding its functional roles in vivo. We identify functional genomic targets of two H3K4 methyltransferases, Set1 and MLL1/2, in both the stem cells (X1) and differentiated tissue (Xins) of the planarian flatworm Schmidtea mediterranea. We show that, despite their common substrate, these enzymes target distinct genomic loci in vivo, which are distinguishable by the footprint each enzyme leaves on the chromatin template, i.e., the breadth of the H3K4me3 peak. Whereas Set1 targets are broadly associated with the maintenance of the stem cell population, MLL1/2 targets are specifically enriched for genes involved in ciliogenesis. These data not only confirm that chromatin regulation is fundamental to planarian stem cell function, but also provide evidence for post-embryonic functional specificity of H3K4me3 methyltransferases in vivo. To test this, we looked at the H3K4me3 chromatin profile in WW, X1 and Xins cell types upon knockdown of set1, mll1/2, as well as WT. Examine binding of H3K36me3 in WT in Planarian. The experiment performed yielded a total of 2 samples. These samples validate the main ChIP samples.

2015-12-17 | E-GEOD-74419 | biostudies-arrayexpress

Set1 and MLL1/2 target distinct sets of functionally different genomic loci in vivo: An in depth ChIP-seq analysis of H3K4me3 targets in vivo and upon Set1 and mll1 knockdown

2015-12-17 | GSE74153 | GEO

H3K36me3 is significantly more enriched at Set1-affected loci than at MLL1/2-affected loci in planarian stem cells

2015-12-17 | GSE74419 | GEO

Inhibition of a pathologic RBM39/MLL1 epigenomic regulatory complex with a dominant-negative peptides disrupts cancer cell transcription, proliferation and survival.

Project description:Inhibition of a pathologic RBM39/MLL1 epigenomic regulatory complex with a dominant-negative peptides disrupts cancer cell transcription, proliferation and survival.

| PRJNA603517 | ENA

Inhibition of a pathologic RBM39/MLL1 epigenomic regulatory complex with a dominant-negative peptides disrupts cancer cell transcription, proliferation and survival

Project description:Inhibition of a pathologic RBM39/MLL1 epigenomic regulatory complex with a dominant-negative peptides disrupts cancer cell transcription, proliferation and survival

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Genome-wide map of NFIB/MLL1 complex binding and H3K4me3 deposition during osteogenic differentiation of C3H10T1/2 mesenchymal stem cells

Project description:To explore direct targets of NFIB/MLL1 complex and to examine the role of NFIB/MLL1 complex in genome-wide deposition of histone H3-K4 tri-methylation (H3K4me3), we conducted chromatin immunoprecipitation (ChIP) followed by deep sequencing (ChIP-seq) analysis of six different samples at two time points.

2023-09-05 | GSE227536 | GEO

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