DCTPP1 and pachyonychia congenita: In addition to proteins known to be secreted, we identified several putatively intracellular, non-N-glycosylated proteins, such as β-glucocerebrosidase and paladin, linked to pancreatic cancer (PC) as well as proteins associated with extracellular vesicles (EVs) in PC, such as dCTP pyrophosphatase 1.