DIAGNOSTIC MARKER FOR GASTROINTESTINAL CANCER, AND TESTING METHOD FOR GASTROINTESTINAL CANCER

摘要

This diagnostic marker for gastrointestinal cancer is used to identify the occurrence of gastrointestinal cancer, and is characterized by comprisisng an N-linked glycan released from a glycoprotein contained in blood, and by the N-linked glycan being at least one glycan selected from the glycans represented by formula (1) - formula (6). Thus enabled is the provision of a diagnostic marker for gastrointestinal cancer that can be used in a testing method for simple, early-stage testing for gastrointestinal cancer, and a testing method for gastrointestinal cancer that enables simple, early-stage testing for gastrointestinal cancer.