MAPK3 and gastric cancer: Present study shows that Circ_0032821 promotes gastric cancer development by activating the MEK1/ ERK1/ 2; CircMRPS35 inhibits the progression of gastric cancer; Silencing RACRACGAP1 can enhance the sensitivity to Apatinib by targeting miR‐3657; CircRNA_0005075 inhibits gastric cancer growth via miR‐431/ p53/ epithelial stromal transformation axis; circ_0006282 promotes gastric cancer growth through miR‐155/ FBXO22 axis.11, 12, 13, 14, 15