NOTCH2 and gastric cancer: To evaluate the effect of miR-23b/Notch2 pathway on metastatic colonization of gastric cancer cells, N2IC-expressing SC-M1/myc-N2IC-His cells or control cells were infected with miR-23b-expressing adenoviruses and then intravenously injected into lateral tail vein of non-obese diabetic severe-combined immunodeficiency (NOD-SCID) mice.