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

Bo Gi Park, Yu Jin Kim, Ji Hyun Min, Taek Chin Cheong, Sang Hwan Nam, Nam Hyuk Cho, Young Keun Kim, Kyu Back Lee

Research output: Contribution to journalArticle

Abstract

Magnetite (Fe3O4)-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 Fe3O4-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.

Original languageEnglish
Article number165
JournalNanoscale Research Letters
Volume15
Issue number1
DOIs
Publication statusPublished - 2020

Keywords

  • Cancer targeting
  • FeO-Au core-shell NPs
  • Muc1
  • Receptor-mediated endocytosis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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