Abstract
Integrating various functional components into a single nano-platform is an ideal but challenging strategy for cancer therapy. Herein, a facile approach to fabricating multi-targeted nano-drug delivery systems which can be monitored is reported. Superparamagnetic iron oxide nanoparticles (SPIONs) and gefitinib (GEF) were encapsulated into folic acid-conjugated zein (Fa–zein) nanocomplexes (GEF-FSZs) with good dispersity, high GEF loading efficiency and pH-dependent release profile. The uptake of water-insoluble GEF was facilitated by encapsulating GEF into a zein-based nanocomplex, the magnetic responsive property endowed by SPIONs and the conjugation of Fa, which resulted in enhanced toxicity to A549 cells. The endocytosis study indicated that macropinocytosis and clathrin/caveolae-independent endocytosis exerted great influence on the internalization of GEF-FSZs. These results implied that GEF-FSZs could be a promising candidate for controlled and targeted drug delivery.
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This work was financially supported by the National Natural Science Foundation of China (Nos. 21476086, 21776102, 21706079) and the Fundamental Research Funds for the Central Universities (No. 2017BQ060).
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Pang, J., Li, Z., Li, S. et al. Folate-conjugated zein/Fe3O4 nanocomplexes for the enhancement of cellular uptake and cytotoxicity of gefitinib. J Mater Sci 53, 14907–14921 (2018). https://doi.org/10.1007/s10853-018-2684-7
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DOI: https://doi.org/10.1007/s10853-018-2684-7