Surface decoration of selenium nanoparticles by mushroom polysaccharides–protein complexes to achieve enhanced cellular uptake and antiproliferative activity
- 1 January 2012
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 22 (19), 9602-9610
- https://doi.org/10.1039/c2jm16828f
Abstract
By using mushroom polysaccharides–protein complexes (PSP) as the capping agent, size controllable and highly stable selenium nanoparticles (SeNPs) have been successfully created in a simple redox system of sodium selenite and ascorbic acid. SeNPs were capped with PSP through strong physical adsorption of hydroxyl groups of polysaccharides and imino groups of proteins on the surface of SeNPs. PSP surface decoration significantly enhanced the cellular uptake of SeNPs through endocytosis. Treatment with PSP–SeNPs significantly inhibited the growth of MCF-7 human breast cacinoma cells through induction of apoptosis with the involvement of PARP cleavage and caspase activation. Moreover, PSP–SeNPs not only significantly induced dose-dependent disruption of mitochondrial membrane potential in MCF-7 cells after 24 h treatment, but it also enhanced reactive oxygen species (ROS) generation as early as 15 min, indicating that ROS-mediated mitochondrial dysfunction may play an important role in PSP–SeNPs-induced apoptosis. Our results suggest that PSP–SeNPs may be a candidate for further evaluation as a chemopreventive agent for human cancers, and the strategy to use PSP as a surface decorator could be a highly efficient way to enhance the cellular uptake and anticancer efficacy of nanomaterials.Keywords
This publication has 48 references indexed in Scilit:
- Nanostructures from Single Amino Acid‐Based Molecules: Stability, Fibrillation, Encapsulation, and Fabrication of Silver NanoparticlesAdvanced Functional Materials, 2011
- Engineering Nanocomposite Materials for Cancer TherapySmall, 2010
- Estimates of cancer incidence and mortality in Europe in 2008European Journal Of Cancer, 2010
- Doxorubicin‐Conjugated Immuno‐Nanoparticles for Intracellular Anticancer Drug DeliveryAdvanced Functional Materials, 2009
- Nanocarriers as an emerging platform for cancer therapyNature Nanotechnology, 2007
- Nanotechnology Applications in CancerAnnual Review of Biomedical Engineering, 2007
- The present and future of nanotechnology in human health careNanomedicine: Nanotechnology, Biology and Medicine, 2007
- Toxic Potential of Materials at the NanolevelScience, 2006
- Selenium-containing enzymes in mammals: Chemical perspectivesJournal of Chemical Sciences, 2005
- Apoptosis is a Critical Cellular Event in Cancer Chemoprevention and Chemotherapy by Selenium CompoundsCurrent Cancer Drug Targets, 2004