Targeted Delivery and Redox Activity of Folic Acid-Functionalized Nanoceria in Tumor Cells.
James A VassieJohn M WhitelockMegan S LordPublished in: Molecular pharmaceutics (2018)
Cerium oxide nanoparticles (nanoceria) are promising catalytic nanomaterials that are widely reported to modulate intracellular reactive oxygen species (ROS). In this study, nanoceria were synthesized by flame spray pyrolysis and functionalized with a cell-targeting ligand, folic acid (FA). The surface functionalization of nanoceria was stable, and FA enhanced the uptake of nanoceria via folate receptors. Internalized nanoceria and FA-nanoceria were localized predominantly in the cytoplasm. FA-nanoceria modulated intracellular ROS to a greater extent than the nanoceria in colon carcinoma cells, but induced ROS in ovarian cancer cells, likely due to their enhanced uptake. Together these data demonstrated that the functionalization of nanoceria with FA modulated their endocytosis and redox activity, and they may find application in the delivery of anticancer drugs in the future.
Keyphrases
- reactive oxygen species
- oxide nanoparticles
- dna damage
- cell death
- stem cells
- risk assessment
- single cell
- oxidative stress
- big data
- endothelial cells
- artificial intelligence
- mass spectrometry
- electronic health record
- mesenchymal stem cells
- drug delivery
- current status
- african american
- liquid chromatography
- molecularly imprinted