SYT13 and gastric cancer: Studies showed that synaptotagmin XIII (SYT13) plays a role in the spread of gastric cancer and among patients with recurrent or PM expressing significantly higher levels of SYT13 than those in stage I.81IP administration of SYT13-specific siRNA, which inhibits SYT13 expression in gastric cancer cells, inhibited peritoneal nodule growth and prolonged survival in a mouse model.81