Abstract
Active delivery of anti-cancer nanoparticles (NPs) represents a possibly influential approach, especially when treating hepatocellular carcinoma (HCC). We synthesized NPs decorated with Aptamer-AS1411 (APT), which selectively binds nucleolin on the surface of hepatoma cells. APT acts as an active targeting ligand that facilitates delivery of viramidine (VRM) against HCC cells. The conjugation between APT and NPs was confirmed by FTIR, 1H NMR, and TEM, and the resulting APT + VRM NPs were uniformly having a round shape with size of 141.77 ± 11.29 nm and zeta potential at − 43.71 ± 9.2 mV. Significant enhancement of cellular association between nucleolin and APT NPs was observed in Huh-7 more than HepG2 cells, thus, an increased cytotoxic effect against the first cell type over 2 days was seen. Furthermore, it was demonstrated that APT + VRM NPs arrest cancerous cells in G1 cell cycle phase, which is associated by a depletion in CDC25A expression. The downregulation of CDC25A is associated with overexpression of p53 and downregulation of PI3k, NF-κB, and STAT-1 expression in the nano-treated HCC cells compared with control. The outputs of protein levels showed the same pattern of the genetic expression levels of all candidates. The outcomes of this approach indicated the significant therapeutic value of APT + VRM NPs.
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The authors declare that this publication was funded from National Research Centre to Ass. Prof. AA Abd-Rabou (Grant No. 12060129).
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All authors contributed in this study. AAA, the corresponding author, conceived the research idea, synthesized and characterized the NPs, as well as performed cell culture, cytotoxicity, flow cytometry, biochemical and genetic experiments, data analysis, wrote the manuscript, and responsible for publication. MSK and HHA participated in cytotoxicity and biochemical experiments. HHA shared in the analysis and editing the manuscript. KMMZ participated in the genetic and protein experiments.
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Abd-Rabou, A.A., Ahmed, H.H., Kishta, M.S. et al. Selective Viramidine-Loaded Aptamer-Nanoparticles Trigger Cell Cycle Arrest in Nucleolin-Expressed Hepatoma Cells Through Modulation of CDC25A/p53/PI3k Pathway. J Clust Sci 34, 335–348 (2023). https://doi.org/10.1007/s10876-022-02224-7
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DOI: https://doi.org/10.1007/s10876-022-02224-7