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• W3158194611 abstract "Disseminated tumors lead to approximately 90% of cancer-associated deaths especially for hepatocellular carcinoma (HCC), indicating the imperative need of antimetastatic drugs and the ineffectiveness of current therapies. Recently polyamine derivatives have been identified as a promising prospect in dealing with metastatic tumors. Herein, a novel class of naphthalimide-polyamine conjugates 8a-8d, 13a-13c, 17 and 21 were synthesized and the mechanism was further determined. The polyamine conjugate 13b displayed remarkably elevated anti-tumor and anti-metastatic effects (76.01% and 75.02%) than the positive control amonafide (46.91% and 55.77%) at 5 mg/kg in vivo. The underlying molecular mechanism indicated that in addition to induce DNA damage by up-regulating p53 and γH2AX, 13b also targeted lysosome to modulate polyamine metabolism and function in a totally different way from that of amonafide. Furthermore, the HMGB1/p62/LC3II/LC3I and p53/SSAT/β-catenin pathways were mainly involved in the inhibition of 13b-induced HCC metastasis by targeting polyamine transporters (PTs) overexpressed in HCC. At last, 13b down-regulated the concentrations of Put, Spd and Spm by modulating polyamine metabolism key enzymes SSAT and PAO, which favored the suppression of fast growing tumor cells. Taken together, our study implies a promising strategy for naphthalimide conjugates to treat terminal cancer of HCC by targeting autophagy and tumor microenvironment with reduced toxicities and notable activities." @default.
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• W3158194611 date "2021-10-01" @default.
• W3158194611 modified "2023-10-02" @default.
• W3158194611 title "A naphthalimide-polyamine conjugate preferentially accumulates in hepatic carcinoma metastases as a lysosome-targeted antimetastatic agent" @default.
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• W3158194611 doi "https://doi.org/10.1016/j.ejmech.2021.113469" @default.
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