Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA284142 | ENA |
REPOSITORIES: ENA
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Project description:A panel of 17 human melanoma cell lines with known BRAF and NRAS mutation status was stimulated with TNF-alpha for 72 hours. The goal of the study was to correlate the transcriptional response in BRAF versus NRAS mutated melanoma cell lines.
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Project description:Transcriptional response of KBM7 cells to IFN-gamma or TNF-alpha was investigated in control or cells with genetrap insertions in JAK2 or TNFRS1A, respectively. The experiment shows that, as expected, cells lacking JAK2 or TNFRS1A expression display a severly blunted response to the tested cytokines. KBM7 genetrap mutant cells stimulated with TNF-alpha and IFN-gamma Sample WT_1 corresponds with the control sample for the IFN-gamma stimulation; Sample WT_2 corresponds with the control sample for the TNF-alpha stimulation. As the expected differences between the samples was large, only single replicates were performed for each condition
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Project description:MCF-7 cells were stimulated with TNF-alpha in order to identify IKKb substrates. conditions: TNF alpha stimulation TNF alpha stimulation + SC-514 IKK (kinase dead mutant) + TNF alpha stimulation IKK(WT) + TNF alpha stimulation basal Already validated IKK substrates were used to train random forest and to predict new substrates. Among other interesting candidates we validated AEG-1 (S298) as an IKKb substrate. We provide evidence that IKKb-mediated AEG-1 phosphorylation is essential for IkBa degradation as well as NF-kB-dependent gene expression and cell proliferation, which correlate with cancer patient survival in vivo. (replicate 1 out of at least 2)
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Project description:The mechanism driving the remarkable ability of the remaining kidney to enlarge and increase its function following the removal of its contralateral pair remains elusive. To explore the pathways driving compensatory renal hypertrophy, comprehensive RNA-seq transcriptional studies were undertaken in the kidneys of C57BL/6 mice undergoing hypertrophy at 24, 48, and 72 hours following nephrectomy, and these results were compared with mice undergoing sham operations. In addition, mass spectrometry was carried out at 24 hours to examine changes in protein expression. Single-nuclei RNA-Seq was used to delineate bulk RNA-seq data into cell types at 24 hours post-nephrectomy. HK-2 renal tubular cells were examined for their ability to undergo hypertrophy in the presence of IGF-1 via the activation of cholesterol biosynthesis pathways. Bulk RNA-seq revealed substantial time-dependent enhancement of cholesterol biosynthesis pathways, increases in mitochondrial gene expression, and cell cycle perturbations. Single-nuclei RNA-Seq at 24 hours post-nephrectomy showed that Sterol Binding Protein 2 (SREBP2) activity increases in medullary thick ascending limb cells and, to a lesser extent, in proximal tubular cells, consistent with the role of promoting cholesterol synthesis. Furthermore, SREBP2 was found to regulate cell size following IGF-1 stimulation in HK-2 cells. There are early, cell-specific alterations in gene expression of cholesterol biosynthesis pathways, mitochondrial genes, and the cell cycle in kidneys undergoing compensatory hypertrophy. SREBP2 activity in the medullary thick ascending limb and, to a lesser extent, in proximal tubules may play a previously undescribed role in promoting cholesterol metabolism in the mechanism underlying compensatory renal hypertrophy.
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Project description:The series was designed to obtain gene expression patterns of TNF-alpha stimulated CaCo-2 cells. Keywords: TNF-alpha stimulation
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