PABPC1 and tumor of duodenum: This includes the polyadenylate-binding protein 1 (Pabp1), predominant in EVs from metastatic duodenal tumor cell lines [26], prostate-specific membrane antigen (PSA) related to prostate cancer progression, angiogenesis, and metastasis [27], miR-21 and miR-146a in cervical cancer [53], and finally lncRNAs in skin cancer (secreted into the blood or urine through EVs) [54].