Comprehensive Molecular Analysis of Colon Cancer for the Identification and Validation of New Biomarkers

Study ID Alternative Stable ID Type
EGAS00001002453 Other

Study Description

This study aims to identify diagnostic and prognostic biomarkers in colon cancer and to study understand the complex genomic, genetic and epigenetic relationships with a multiomic approach. The study includes tumor and paired normal mucosa of 100 colon cancer patients diagnosed at stage II, untreated and with microsatellite stable tumours. Also 50 normal mucosa samples from healthy donors are included as reference. The samples have been analysed for gene expression with Affymetrix U219 array (available at GEO GSE44076), SNP/CNV with the Affymetrix 6.0 Human SNP array, for DNA methylation with the Illumina 450K array. Small RNAs were sequenced with the Solid technology and 42 of the tumours and paired normal mucosa DNA were whole exome sequenced with Illumina Genome Analyzer.

Study Datasets 3 datasets.

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Dataset ID Description Technology Samples
This dataset consists of Illumina HiSeq 2000 Whole Exome Sequencing of 84 colorectal samples: 42 Tumor tissue samples and 42 Normal tissue samples (adjacent to tumor sites). 2x75bp paired-end sequencing reads: 2 fastq files per sample
Illumina HiSeq 2000 84
This dataset consists of SOLiD small RNA-seq of 250 colorectal samples: 100 tumor tissue samples, 100 normal tissue samples (adjacent to tumor sites) and 50 matched control samples of healthy individuals. CSfasta and qual files converted to single fastq files prior to uploading.
AB SOLiD System 250
Affymetrix SNP 6.0
Affymetrix SNP 6.0 245

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