Project description:Gene expression profiles of paired normal adjacent mucosa and tumor samples from 98 individuals and 50 healthy colon mucosae, were obtained through Affymetrix Human Genome U219 Arrays. This dataset is in the context of the COLONOMICS project and to query additional information you can visit the project website www.colonomics.org. Colon tumor and adjacent paired normal mucosa tissues samples used in this study were selected from a series of cases with a new diagnosis of colorectal adenocarcinoma histologically confirmed. Included cases were from a homogenous series of patients with more than three years of follow up, early stage (II), without neoadjuvant chemotherapy and microsatellite stable colon cancer. Additionally, samples of colon mucosa from 50 healthy donors without colonic lesions were obtained during colonoscopy.
Project description:To develop a better understanding of the biology underlying risk for CRC posed by germ line APC mutations we performed DNA methylation analysis of colon organoids derived from normal-appearing colons of FAP subjects (n=7) and matched healthy individuals (n=16). We identified a large number (n=358) of differentially methylated regions (DMRs) between colon organoids of FAP and healthy subjects, many of which were also identified in a comparison of tumor and normal adjacent tissue (NAT) in two independent, sporadic CRC tumor cohorts.
Project description:Methylation profiling in colorectal cancer : adjacent normal tissue vs colon tumor tissue indirect comparison experiment : CRD(common reference DNA) vs tumor-adjacent normal, CRD vs Colon tumor
Project description:microRNA profiling of colon tumor tissues vs adjacent normal tissues 40 paired tumor and adjacent normal tissues of stage M-bM-^EM-! colon caner
