Project description:We collected whole genome testis expression data from hybrid zone mice. We integrated GWAS mapping of testis expression traits and low testis weight to gain insight into the genetic basis of hybrid male sterility.
Project description:Genome wide expression changes following treatment with the HDACs (Histone Deacetylase Inhibitor) CG-1521 (7.5uM) or TSA (Trichostatin A) were investigated to determine regulatory targets and patterns of the HDAC Inhibitors. Keywords: Expression response to treatment, data was used for a comparison of gene expression and regulation between CG-1521 and TSA in LNCaP Cells
Project description:Western Blot showed that epigenetic control of the mouth dimorphism in P. pacificus correlates with histone 4 acetylation. This result was validated by mass spectrometry. This experiment profiled histone acetylation in the presence and absence of the histone deacetylase (HDAC) inhibitor Trichostatin A (TSA). Histone acetylation was also examined in the presence of another HDAC inhibitor (Na-butyrate), which served as an additional negative control because unlike TSA, it did not induce a phenotypic change.
Project description:Gene expression analysis in differentiated day 3 cells from mouse ESC under the treatment of DMSO and histone deacetylase inhibitors (TSA) [expression array]
Project description:We collected whole genome testis expression data from hybrid zone mice. We integrated GWAS mapping of testis expression traits and low testis weight to gain insight into the genetic basis of hybrid male sterility. Gene expression was measured in whole testis from males aged 62-86 days. Samples include 190 first generation lab-bred male offspring of wild-caught mice from the Mus musculus musculus - M. m. domesticus hybrid zone.
Project description:Genome wide expression changes following treatment with the HDACs (Histone Deacetylase Inhibitor) CG-1521 (7.5uM) or TSA (Trichostatin A) were investigated to determine regulatory targets and patterns of the HDAC Inhibitors. LNCaP Prostate Cancer cells were treated for a period of 24h with either CG-1521 (7.5uM) or TSA (5uM) following a 24h seeding period. At the selected time point, total RNA was harvested from the cells for hybridization and analysis by Nimblgen Systems Inc using the homo sapiens gene expression array.
Project description:Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal of all human cancers with a high mortality rate. Resistance to conventional treatments and chemotherapeutics is a typical feature of PDAC. To investigate the causes of drug resistance it is essential to deeply investigate the mechanism of action of chemotherapeutics. In this study, we performed an in depth shotgun proteomic approach using the label-free proteomic SWATH-MS analysis to investigate novel insights of the mechanism of action of the histone deacetylase (HDAC) inhibitor trichostatin A (TSA) in PDAC cells. This proteomic analysis in PaCa44 cells and data elaboration of TSA-regulated proteins by bioinformatics showed an overall up-regulation of cytokeratins and other proteins related to the cytoskeleton organization, keratinization, and apoptotic cell death. On the contrary, a large amount of the down-regulated proteins by TSA treatment belongs to the cellular energetic metabolism and to the machinery of protein synthesis, such as ribosomal proteins, determining synergistic cell growth inhibition by the combined treatment of TSA and the glycolytic inhibitor 2-deoxy-D-glucose in a panel of PDAC cell lines
Project description:Treatment with the histone deacetylase inhibitor trichostatin a (TSA) changes the radial positioning of the CFTR gene in HeLa S3 cells. The gene relocates from the nuclear periphery to the nuclear interior. In Calu-3 cells the gene is located in the nuclear interior. To identifiy potential regulatory elements for the positioning of CFTR, the histone h3 and h4 acetylation patterns of untreated and TSA-treated HeLa S3 and untreated Calu-3 cells were determined by ChIP-chip. A CTCF site close to the CFTR promoter displayed consistent histone H3 hyperacetylation in TSA treated HeLa S3 cells and Calu-3 cells.
Project description:This SuperSeries is composed of the following subset Series:; GSE3783: Trichostatin A (TSA) inhibition of histone deacetylase in Arabiodopsis thaliana; GSE3784: Seed germination in presence and absence of histone deaceatylase inhibitor, Trichostain A (TSA). Histone acetylation is involved in the regulation of gene expression in plants and eukaryotes. Histone deacetylases (HDACs) are enzymes that catalyze the removal of acetyl groups from histones, which is associated with the repression of gene expression. To study the role of histone acetylation in the regulation of gene expression during seed germination, trichostatin A (TSA), a specific inhibitor of histone deacetylase, was used to treat imbibing Arabidopsis thaliana seeds. GeneChip arrays were used to show that TSA induces up-regulation of 45 genes and down-regulation of 27 genes during seed germination. Eight TSA-up-regulated genes were selected for further analysis - RAB18, RD29B, ATEM1, HSP70 and four late embryogenesis abundant protein genes (LEA). A gene expression time course shows that these eight genes are expressed at high levels in the dry seed and repressed upon seed imbibition at an exponential rate. In the presence of TSA, the onset of repression of the eight genes is not affected but the final level of repressed expression is elevated. Chromatin immunoprecipitation and HDAC assays show that there is a transient histone deacetylation event during seed germination at one day after imbibition, which serves as a key developmental signal that affects the repression of the eight genes. Experiment Overall Design: Refer to individual Series