APOA2 and liver cancer: DONSON, XIST, AC018607.1, MALAT1, GOLGA8A, AC005224.3, AC003684.1, VSTM2A, LINC02280, and CDHR2 were under-expressed in exosomes from liver cancer patients, and RPS4Y1, HIST2H2AA3, APOC3, ORM1, APOA2, APOH, HRG, FGB, FGG, FGA were highly expressed in the exosomes of HCC patients (Fig. 1B).