TTK and pancreatic ductal adenocarcinoma: A component of the Spindle Assembly Checkpoint, TTK protein kinase whose inhibition could be a novel therapeutic target for the treatment of triple-negative breast cancer (TNBC) (Maia et al., 2015) and pancreatic ductal adenocarcinoma (PDAC) (Kaistha et al., 2014), is overexpressed in several cancers.