ArticleInternational journal of molecular sciences2024
MicroRNA Profiling of PRELI-Modulated Exosomes and Effects on Hepatic Cancer Stem Cells.
Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The increasing incidence and mortality rates of liver cancer have heightened the demand for the development of effective anticancer drugs with minimal side effects. In this study, the roles of exosomes derived from liver cancer stem cells (LCSCs) with PRELI (Protein of Relevant Evolutionary and Lymphoid Interest) modulation and their miRNAs were investigated to explore their therapeutic properties for liver cancer. Various techniques, such as miRNA profiling, microRNA transfection, overexpression, flow cytometry, Western blotting, and immunocytochemistry, were used to evaluate the effects of exosomes under PRELI up- and downregulation. Downregulated PRELI cellular exosomes (DPEs) reduced the levels of five markers-CD133, CD90, CD24, CD13, and EpCAM-in LCSCs, with the exception of OV-6. Conversely, upregulated PRELI cellular exosomes (UPEs) significantly increased the expression of CD90, CD24, and CD133 in NHs, with the maximum increase in CD24. PRELI upregulation altered expression levels of miRNAs, including hsa-miR-378a-3p (involved in stem-like properties), hsa-miR-25-3p (contributing to cell proliferation), and hsa-miR-423-3p (driving invasiveness). Exosomes with downregulated PRELI inhibited the AKT/mTORC1 signaling pathway, whereas LCSCs transfected with the candidate miRNAs activated it. Additionally, under PRELI upregulation, exosomes showed increased surface marker expression, promoting cancer progression. The modulation of PRELI in LCSCs affected miRNA expression significantly, revealing candidate miRNA targets for liver cancer treatment. Exosomes with PRELI downregulation show potential as a novel therapeutic strategy. Consequently, this study proposes the potential of PRELI-induced exosomes and the three miRNAs as a liver anticancer therapeutic candidate.
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