HNRNPH1 and hepatocellular carcinoma: mRNA in HCC exosome The serum exosomal heterogeneous nuclear ribonucleoprotein H1 (hnRNPH1) mRNA levels in HCC patients were remarkably higher than chronic hepatitis B patients, besides, which were associated with the portal vein tumor emboli, lymph node metastasis, Child-Pugh classification, TNM stage and overall survival [96].