Project description:Hepatitis C virus (HCV) infection is primarily treated with a pegylated interferon alpha based therapy, a regime that induces antiviral effects through the upregulation of many interferon-stimulated genes (ISGs). Whilst a number of anti-HCV ISGs have previously been identified, others may also be involved. Micorarrays were used to validate the presence of ISGs within subtracted libraries generated using the related techniques of suppression subtractive hybridisation and mirror orientation selection, which had initally been impllemented to isolate clones of ISGs following the interferon-alpha treatment of Huh-7 cells. Microarray data was generated for both untreated and interferon-alpha treated Huh-7 cells. No replicates were performed, however the microarray data was verified via the use of non-parametric (spearman) correlation analysis with RT-PCR data that had been generated using the same Huh-7 cell total RNA samples as the microarray experiments earlier.
Project description:STAT1 plays a cental role in the induction of interferon-stimulated genes, but interferon alpha can activate a STAT1-independent pathway that leads to gene expression. We performed microarray analysis to examine whether like interferon alpha, interferon lambda, a newly discovered interferon, can induce the expression of interferon-stimulated genes in the absence of STAT1. Control and STAT1 knockout Huh-7.5 hepatoma cells were left untreated or treated with 1000 U/ml of human interferon alpha 2a or interferon lambda 1 (PBL) for 24 h, and total RNA was extracted. Sense-strand DNA was generated from 200 ng of total RNA, fragmented, and labeled using a GeneChip WT Plus Reagent Kit (Affymetrix). Six samples were obtained and each sample was anlyzed using one GeneChip.
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
Project description:Hepatitis C virus (HCV) infection is primarily treated with a pegylated interferon alpha based therapy, a regime that induces antiviral effects through the upregulation of many interferon-stimulated genes (ISGs). Whilst a number of anti-HCV ISGs have previously been identified, others may also be involved. Micorarrays were used to validate the presence of ISGs within subtracted libraries generated using the related techniques of suppression subtractive hybridisation and mirror orientation selection, which had initally been impllemented to isolate clones of ISGs following the interferon-alpha treatment of Huh-7 cells.
Project description:The purpose is to obtain HUH VP30 samples for mRNA analysis with and with out interferon α and β treatment. Huh VP30 cells have been stably transfected with the Ebola VP30 gene, enabling replication of VP30-deficient Ebola virus. PubMed ID 18212124 and 19211761.