Project description:Copy number analysis to compare parental colorectal cancer cell lines and their selumetinib-resistant derivatives and identify gene copy changes that might contribute to resistance
Project description:RNA sequencing analysis to compare parental colorectal cancer cell lines and their selumetinib-resistant derivatives and identify expression changes and/or mutations that might contribute to resistance
Project description:Structural changes of chromosomes play important roles in the carcinogenesis of colorectal carcinoma (CRC). Here, by using SNP-typing arrays, we have tried to screen for recurrent chromosome copy number changes and loss-of-heterozygosity in the genome of colorectal carcinoma. Genomic DNA was isolated from tumor and paired normal tissues of CRC (n=94), and was hybridized to Affymetrix Mapping 50K Xba 240 arrays. Chromosome copy number and LOH likelihood score was inferred at every SNP locus with CNAG2.0 software (http://www.genome.umin.jp). Keywords: Comparative genomic hybridization
Project description:Anti-tumor effect of the combination between 5-FU and selumetinib was treatment schedule-dependent in BRAF or KRAS mutant CRC cells. Treatment of 5-FU for 2 days followed by selumetinib for another 2 days exhibited synergism for cell viability, whereas single or reversely combined treatment showed antagonism Microarray analysis revealed the distinct groups of genes underlying the efficacy for schedule-dependent treatment.