PCED1B and gastric cancer: This study revealed that miR-215-3p level was dramatically declined in GC tissues and cell lines, and miR-215-3p and PCED1B-AS1 expression were negatively correlated in GC tissues; the transfection of miR-215-3p mimics partially impeded the promoting effect of PCED1B-AS1 overexpression on the malignant biological behaviors of GC cells.