ADAMTS9 and gastric cancer: It has been suggested that low expression of ADAMTS9-AS2 is associated with poor prognosis in patients with several types of cancers, such as lung, colorectal, and gastric cancers, while high ADAMTS9-AS2 expression is associated with poor prognosis in patients with some cancers, such as bladder cancer and salivary adenoid cystic carcinoma [46,47,48,49,50].