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The transcriptomic changes induced by NREP downregulation in HepG2 cells

ABSTRACT: The transcriptomic changes induced by NREP downregulation in HepG2 cells

PROVIDER: PRJNA591945 | ENA |

REPOSITORIES: ENA

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The transcriptomic changes induced by NREP downregulation in HepG2 cells

Project description:To evaluate the global transcriptomic changes induced by Neuronal Regeneration Related Protein (NREP) downregulation, we employed RNA-sequencing in HepG2 cells lacking NREP. Enriched pathway analyses of upregulated genes revealed pathways involved in cholesterol synthesis, fatty acid metabolism, NAFLD and PI3K-250 AKT signaling. In contrast, enriched downregulated genes included those for membrane trafficking, non-sense mediated decay, glucagon signaling, and cell-cycle. Differentially expressed genes included HMGCR (cholesterol synthesis) and TGFBR1 (TGF-β signaling and fibrosis).

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Expression analysis of HepG2, HepG2-slug and HepG2-slug on Matrigel

Project description:Investigation of whole genome gene expression level changes in hepatocellular carcinoma cell line hepG2 in regular culture, hepG2-slug in regular culture and hepG2-slug on Matrigel. Whole genome gene expression level changes have been compared in hepatocellular carcinoma cell line hepG2 in regular culture, hepG2-slug in regular culture and hepG2-slug on Matrigel. Roche NimbleGen micro-array analysis was employed to assess global genome expression in HepG2 in regular culture, HepG2-slug in regular culture and HepG2-slug on Matrigel. The results demonstrated that the up-regulated genes and the down-regulated genes increased significantly when HepG2-slug cells with VM forming ablity were cultured on Matrigel and formed VM.

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Trovafloxacin-Induced Gene Expression Changes: Comparison of Primary Human Hepatocytes to HepG2 Cells

Project description:Primary human hepatocytes (PHH) are a main instrument in drug metabolism research and in the prediction of drug-induced phase I/II enzyme induction in humans. The HepG2 liver-derived cell line is commonly used as a surrogate for human hepatocytes, but their use in ADME and toxicity studies can be limited because of lowered basal levels of metabolizing enzymes. Despite their widespread use, the transcriptome of HepG2 cells compared to PHH is not well characterized. In this study, microarray analysis was conducted to ascertain the differences and similarities in mRNA expression between HepG2 cells and human hepatocytes before and after exposure to a panel of fluoroquinolone compounds. Comparison of the naïve HepG2 cell and PHH transcriptomes revealed a substantial number of basal gene expression differences. When HepG2 cells were dosed with a series of fluoroquinolones, trovafloxacin, which has been associated with human idiosyncratic hepatotoxicity, induced substantially more gene expression changes than the other quinolones, similar to previous observations with PHH. While TVX-treatment resulted in many gene expression differences between HepG2 cells and PHH, there were also a number of TVX-induced commonalities, including genes involved in RNA processing and mitochondrial function. Taken together, these results provide insight for interpretation of results from drug metabolism and toxicity studies conducted with HepG2 cells in lieu of PHH, and could provide further insight into the mechanistic evaluation of TVX-induced hepatotoxicity. Keywords: Cell Type Comparison

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