[136] reported that lncRNA PAX-interacting protein 1-antisense RNA 1 (PAXIP1-AS1) is repressed by homeobox D9 (HOXD9), while PAXIP1-AS1 overexpression attenuates HOXD9-enhanced EMT, invasion, and metastasis in GC [136]. This evidence concerns the gene HOXD9 and gastric cancer.