For example, miR-422a was shown to target MEF2D and be sponged by lncRNA D63785, which promoted chemoresistance in gastric cancer [17]; a LINC01433/miR-2116-3p/MYC positive feedback loop was identified to facilitate breast cancer cell proliferation, migration, and epithelial to mesenchymal transition (EMT) [6]; lncRNA H19 targeting miR-3187-3p/GAB1 axis acted as a ceRNA to promote fibroblast proliferation, migration, and invasion in HTS [7]. The gene discussed is MEF2D; the disease is gastric cancer.