Exosomal microRNAs as Biomarkers and Therapeutic Targets for Hepatocellular Carcinoma

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  • Andrei Sorop
    Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
  • Diana Constantinescu
    Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
  • Florentina Cojocaru
    Department DAFAB, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
  • Anca Dinischiotu
    Department DAFAB, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
  • Dana Cucu
    Department DAFAB, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
  • Simona Olimpia Dima
    Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania

説明

<jats:p>Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide and the second most common cause of cancer-related death globally. This type of liver cancer is frequently detected at a late stage by current biomarkers because of the high clinical and biological heterogeneity of HCC tumours. From a plethora of molecules and cellular compounds, small nanoparticles with an endosomal origin are valuable cancer biomarkers or cargos for novel treatments. Despite their small sizes, in the range of 40–150 nm, these particles are delimited by a lipid bilayer membrane with a specific lipid composition and carry functional information—RNA, proteins, miRNAs, long non-coding RNAs (lncRNAs), or DNA fragments. This review summarizes the role of exosomal microRNA (miRNA) species as biomarkers in HCC therapy. After we briefly introduce the exosome biogenesis and the methods of isolation and characterization, we discuss miRNA’s correlation with the diagnosis and prognosis of HCC, either as single miRNA species, or as specific panels with greater clinical impact. We also review the role of exosomal miRNAs in the tumourigenic process and in the cell communication pathways through the delivery of cargos, including proteins or specific drugs.</jats:p>

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