BACKGROUND: The clinical efficacy of camptothecin (CPT), a drug specifically targeting topoisomerase I (TopoI), is under evaluation for the treatment of malignant gliomas. Due to the high unresponsiveness of these tumours to chemotherapy, it would be very important to study the signalling network that drives camptothecin outcome in this type of cancer cells. To address this issue, we had previously compared the expression profile of human U87-MG glioblastoma cells with that of a CPT-resistant co ...[more]
Project description:A variety of human cell lines, were grown, RNA was extracted, and gene expression quantified using Affymetrix hgu133plus2 arrays. Expression of genes was compared to the rate of metabolism of the bioreductive prodrug PR-104A, and genes with expression shown to be statistically significantly correlated to pro-drug metabolic rate were chosen for further investigation.
Project description:Lymph node sections from 29 patients with StageIIIB and IIIC melanoma, with divergent clinical outcome including 16 poor and 13 good prognosis patients as defined by time to tumor progression (TTP), were profiled using MWG oligonucleotide arrays,.
Project description:A common reference experiment design was performed. mRNAs from 149 New Zealand colorectal cancer samples were labeled with Cy5 and a common reference RNA from 12 cell lines were labeled with Cy3. Data were log2 transformed and normalized. Class prediction was performed to identify genes capable of predicting future samples.
Project description:Gene expression in the fetal liver cells obtained from MBT-1+/+ or MBT-1-/- embryos at E14.5 were analyzed using Affymetrix Genechip to assess the effect of the gene knock-out on hematopoietic cells.
Project description:Comparison of L5 DRG gene expression profiles at day 14 from gp120+ddC treated animals vs sham (SA + saline) treated animals.<br>This experiment is part of larger study, where the expression profiles of three disparate models of neuropathic pain (SNT, VZV infection and gp120+ddC) are compared in order to find genes that are responsible for mechanical hypersensitivity formation/maintenance.