For instance, lncRNA MALAT1 directly interacts with miR-22-3p to modulate zinc finger protein 91 (ZFP91) expression in GC cells 26, and lncRNA ILF3-AS1 functions as a ceRNA via sponging miR-29a to elevate PTBP3 expression in GC cells 27. Here, PTBP3 is linked to gastric cancer.