HNRNPH1 and hepatocellular carcinoma: Furthermore, a study on the relationship between serum exosomal hnRNPH1 mRNA levels and clinicopathological characteristics of HCC patients showed that high level of serum exosomal hnRNPH1 mRNA in the serum was associated with poor prognosis, which had important predictive value in the prognostic classification of HCC 34.