In many reports, such as the one of Vigen et al. for gastric adenocarcinomas, there is an increased expression of ATG16 (80% of GC cases) and ATG5 (80% of GC cases), while in cases of gastric carcinoid, the expression of ATG16 is higher (90%) in comparison with that of ATG5 (60%) [79]. Here, ATG5 is linked to gastric cancer.