Assessment of Cellular Uptake Efficiency According to Multiple Inhibitors of Fe3O4-Au Core-Shell Nanoparticles: Possibility to Control Specific Endocytosis in Colorectal Cancer Cells

• Published in: Nanoscale research letters 2020-08, Vol.15 (1), p.165-165, Article 165
• Main Authors: Park, Bo Gi, Kim, Yu Jin, Min, Ji Hyun, Cheong, Taek-Chin, Nam, Sang Hwan, Cho, Nam-Hyuk, Kim, Young Keun, Lee, Kyu Back
• Format: Article
• Language: English
• Subjects: Antibodies; Biological properties; Biomedical materials; Cancer; Cancer targeting; Chemistry and Materials Science; Colorectal cancer; Colorectal carcinoma; Core-shell particles; Cytochalasin D; Drug delivery; Drug delivery systems; Endocytosis; Fe3O4-Au core-shell NPs; Gold; Internalization; Iron oxides; Magnetic cores; Magnetic properties; Magnetite; Materials Science; Molecular Medicine; Muc1; Nano Express; Nanochemistry; Nanoparticles; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Nystatin; Optical properties; Phagocytosis; Receptor-mediated endocytosis; Stability; System effectiveness; Vimentin
• ISSN: 1556-276X; 1931-7573; 1556-276X
• DOI: 10.1186/s11671-020-03395-w

Magnetite (Fe 3 O 4 )-gold (Au) core-shell nanoparticles (NPs) have unique magnetic and optical properties. When combined with biological moieties, these NPs can offer new strategies for biomedical applications, such as drug delivery and cancer targeting. Here, we present an effective method for the controllable cellular uptake of magnetic core-shell NP systems combined with biological moieties. Vimentin, which is the structural protein, has been biochemically confirmed to affect phagocytosis potently. In addition, vimentin affects exogenic materials internalization into cells even though under multiple inhibitions of biological moieties. In this study, we demonstrate the cellular internalization performance of Fe 3 O 4 -Au core-shell NPs with surface modification using a combination of biological moieties. The photofluorescence of vimentin-tagged NPs remained unaffected under multiple inhibition tests, indicating that the NPs were minimally influenced by nystatin, dynasore, cytochalasin D, and even the Muc1 antibody (Ab). Consequently, this result indicates that the Muc1 Ab can target specific molecules and can control specific endocytosis. Besides, we show the possibility of controlling specific endocytosis in colorectal cancer cells.