Abstract |
Biodegradable nanoparticles with diameters below 1000nm are of great interest in the contexts of targeted delivery and imaging. In this study, we prepared PLGA nanoparticles with well-defined sizes of ∼70nm (NP70), ∼100nm (NP100), ∼200nm (NP200), ∼400nm (NP400), ∼600nm (NP600) and ∼1000nm (NP1000) using facile fabrication methods based on a nanoprecipitation and solvent evaporation techniques. The nanoparticles showed a narrow size distribution with high yield. Then the size-controlled biodegradable nanoparticles were used to investigate how particle size at nanoscale affects interactions with tumor cells and macrophages. Interestingly, an opposite size-dependent interaction was observed in the two cells. As particle size gets smaller, cellular uptake increased in tumor cells and decreased in macrophages. We also found that paclitaxel (PTX)-loaded nanoparticles showed a size-dependent inhibition of tumor cell growth and the size-dependency was influenced by cellular uptake and PTX release. The size-controlled biodegradable nanoparticles described in this study would provide a useful means to further elucidate roles of particle size on various biomedical applications.
|
Authors | Jin-Seok Choi, Jiafu Cao, Muhammad Naeem, Jinki Noh, Nurhasni Hasan, Hoo-Kyun Choi, Jin-Wook Yoo |
Journal | Colloids and surfaces. B, Biointerfaces
(Colloids Surf B Biointerfaces)
Vol. 122
Pg. 545-551
(Oct 01 2014)
ISSN: 1873-4367 [Electronic] Netherlands |
PMID | 25108477
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
|
Copyright | Copyright © 2014 Elsevier B.V. All rights reserved. |
Chemical References |
- Antineoplastic Agents, Phytogenic
- Biocompatible Materials
- Polylactic Acid-Polyglycolic Acid Copolymer
- Polyglycolic Acid
- Lactic Acid
- Paclitaxel
|
Topics |
- Animals
- Antineoplastic Agents, Phytogenic
(administration & dosage, pharmacology)
- Biocompatible Materials
- Cell Division
(drug effects)
- Cell Line
- Humans
- Lactic Acid
(chemistry)
- Mice
- Microscopy, Electron, Scanning
- Nanoparticles
- Neoplasms
(pathology)
- Paclitaxel
(administration & dosage, pharmacology)
- Particle Size
- Polyglycolic Acid
(chemistry)
- Polylactic Acid-Polyglycolic Acid Copolymer
|