ABL2 and mucinous adenocarcinoma: In addition, to determine the expression of ABL2 in gastric mucosal cells, we using normal human gastric epithelial cells (GES-1 cells), human undifferentiated GC cell line (HGC-27), and human gastric poorly differentiated mucoid adenocarcinoma derived cells (MGC-803 cells), detected ABL2 expression level in the different cell line or cells.