Published online Oct 14, 2019. doi: 10.3748/wjg.v25.i38.5732
Peer-review started: May 5, 2019
First decision: June 10, 2019
Revised: July 26, 2019
Accepted: September 27, 2019
Article in press: September 27, 2019
Published online: October 14, 2019
Processing time: 164 Days and 20.4 Hours
Core tip: Ion channels play an essential function in the physiology of the GI tract. There is increasing evidence that they are dysregulated at all stages of gastrointestinal (GI) cancer, from early initiation to metastasis. This information provides for the use of ion channel expression as useful clinical prognostic biomarkers in GI cancer. Perhaps more importantly new therapeutic modalities targeting ion channels in the GI tract, including the potential to target their dysregulation in GI cancers are becoming increasingly feasible. This strategy includes the repurposing of existing drugs that are used to treat other ion channel pathologies, or other diseases altogether. This review seeks to provide an overview of the role of ion channels in GI cancers with an emphasis on the potential for new therapies that target them.