LncRNA ADAMTS9-AS2 located in chr3:64684720-64809891, which had recently been identified as a tumor suppressor in GC progression [24], and upregulation of LncRNA ADAMTS9-AS2 inhibited GC development by activating PI3K/Akt pathway [24], however, the detailed mechanisms are still unclear. Here, ADAMTS9 is linked to gastric cancer.