Preliminary Evaluation of Septin9 in Patients With Hereditary Colon Cancer Syndromes

"Plasma specimens will be collected and processed according to the Instructions for Use of the Epi proColon investigational device.~For circulating colonic epithelial cell analysis, at least one ml whole blood will be required for analysis. Samples will be analyzed for circulating epithelial cells using the geometrically enhanced immunocapture device (GEDI; Gleghorn et al., 2009). Circulating epithelial cells will be captured using EpCAM antibodies and quantified by immunofluorescence microscopy as defined as cells that are DAPI+, CK+, CD45-. Captured cells will be fixed and stored at -20˚C."