Project description:We investigated the transcriptome of HUVECs under basal conditions and overexpression of Sox18 in presence or absence of small molecule protein-protein disruptor Sm4. Various RNA fractions were prepared and sequenced in order to characterise Sox18 and Sm4 responsive genes in HUVECs
Project description:We investigated SOX18 binding events on the chromatin under basal conditions in human umbilical vein endothelial cells, upon overexpression of mouse Sox18-cMyc and immunoprecipitating cMyc. Cells overexpressing only the cMyc tag were used as negative control condition, and peaks called here were substracted from the Sox18-cMyc peaks.
Project description:Estrogen Receptor alpha (ERα) is a key driver of most breast cancers, and it is the target of endocrine therapies used in the clinic to treat women with ERα positive (ER+) breast cancer. The two methods ChIP-seq (chromatin immunoprecipitation coupled with deep sequencing) and RIME (Rapid Immunoprecipitation of Endogenous Proteins) have greatly improved our understanding of ERα function during breast cancer progression and in response to anti-estrogens. A critical component of both ChIP-seq and RIME protocols is the antibody that is used to pull down the bait protein. To date, most of the ChIP-seq and RIME experiments for the study of ERα have been performed using the sc-543 antibody from Santa Cruz Biotechnology. However, this antibody has been discontinued, thereby severely impacting the study of ERα in normal physiology as well as diseases such as breast cancer and ovarian cancer. Here, we compare the sc-543 antibody with other commercially available antibodies, and we show that 06-935 (EMD Millipore) and ab3575 (Abcam) antibodies can successfully replace the sc-543 antibody for ChIP-seq and RIME experiments.
Project description:H3K27Ac is one of the expressed enhancer markers in endothelial cells, but its genomic localization is unknown. This time, we established a new antibody for H3K27ac, and performed ChIP-seq to identify H3K27ac binding site in whole genome manner under hypoxia. We used chromatin immunoprecipitation with deep sequencing (ChIP-seq) of HUVECs treated with or without hypoxia (1%O2) for 24hours, then H3K27ac binding regions were identified. Normoxia was used as a control condition. HUVECs were used within the first 6 passages.
Project description:MEF2C is one of the substantially expressed transcriptional factors in endothelial cells, but its genomic localization is unknown. This time, we established a new antibody for MEF2C, and performed ChIP-seq to identify MEF2C binding site in whole genome manner. H3K27Ac binding sites were also detected in the same way. We used chromatin immunoprecipitation with deep sequencing (ChIP-seq) of HUVECs treated with or without pitavastatin for 4hours, we identified MEF2C and H3K27Ac binding regions.HUVECs were used within the first 6 passages. For MEF2C studies, HUVECs were cultivated in medium EGM2MV containing pitavastatin at a concentration of 1 ?M, and same concentration of DMSO was used as a control sample. For H3K27ac, HUVECs were starved for 16 hours and harvested without statin treatment.
Project description:Smad1/5 binding regions were identified by ChIP-seq. HUVECs were treated with BMP for 1.5 h and anti-SMAD1/5 ChIP-seq analyses were performed using Illumina genome analyzer.
Project description:H3K27Ac is one of the expressed enhancer markers, PPARβ/δ is a transcription factor and Pol II (RNA polymerase II) is an enzyme which catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA. These genomic localization in endothelial cells is unknown in endothelial cells. This time, we established a new antibody for H3K27ac, PPARβ/δ and Pol II and performed ChIP-seq to identify H3K27ac, PPARβ/δ and Pol II binding site in whole genome manner under PPARβ/δ agonist and/or hypoxia. We used chromatin immunoprecipitation with deep sequencing (ChIP-seq) of HUVECs treated with PPARβ/δ agonist (GW501516 100nM) and/or hypoxia (1%O2) for 24hours, then H3K27ac, PPARβ/δ and Pol II binding regions were identified. Normoxia and DMSO was used as a control condition. HUVECs were used within the first 6 passages.
Project description:We investigated differences in the chromatin-binding profile of SOX18 (mouse) and its dominant-negative isoform SOX18RaOp, and how SOX18RaOp alters the binding location of SOX18. HeLa cells were transfected to generate 3 different conditions: 1. myc-SOX18, 2. myc-SOX18RaOp and 3. myc-SOX18 with untagged-SOX18RaOp. Each condition was performed in duplicate (6 samples total). An anti-Myc antibody was used to perform the pull-down. Background (input) was assessed by pooling cells transfected with each condition and sequencing without immunoprecipitation.