Abstract: The invention is directed to a method for detecting colorectal adenoma and/or colorectal carcinoma comprising the steps: a) providing an isolated sample material which has been taken from an individual, b) determining the level of transthyretin in said isolated sample material, and c) comparing the determined level of transthyretin with a reference value. The invention is further directed to a method for discriminating between colorectal adenoma and colorectal carcinoma as well as to a method for monitoring the course of colorectal adenoma and/or colorectal carcinoma and/or the treatment of colorectal adenoma and/or colorectal carcinoma. Moreover, the invention is directed to a test system and an array for use in these methods. Furthermore, the invention is directed to the use of transthyretin as a biomarker for a detection of colorectal adenoma and/or colorectal carcinoma in an individual.

Abstract: The present invention is directed to a method for detecting colorectal adenoma and/or colorectal carcinoma comprising the steps: a) providing an isolated sample material which has been taken from an individual, b) determining the level of C3a or a derivative thereof in said isolated sample material, c) comparing the determined level of C3a or a derivative thereof with one or more reference values. The invention is further directed to a method for discriminating between colorectal adenoma and colorectal carcinoma as well as to a method for monitoring the course of colorectal adenoma and/or colorectal carcinoma and/or the treatment of colorectal adenoma and/or colorectal carcinoma. Moreover, the invention is directed to a test system and an array for use in these methods. Furthermore, the invention is directed to the use of C3a as a biomarker for a detection of colorectal adenoma and/or colorectal carcinoma in an individual.