Preparation of BMP-2 containing bovine serum albumin (BSA) nanoparticles stabilized by polymer coating
| Autor: | John R. Matyas, Ronald F. Zernicke, Sufeng Zhang, Hasan Uludağ, Kevin Siggers, Hongxing Jiang, Guilin Wang, Zhenghe Xu |
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| Rok vydání: | 2008 |
| Předmět: |
inorganic chemicals
Serum albumin Pharmaceutical Science Nanoparticle Bone Morphogenetic Protein 2 engineering.material Bone morphogenetic protein 2 Acetone Drug Delivery Systems Coating Drug Stability Animals Humans Polyethyleneimine Pharmacology (medical) Polylysine Bovine serum albumin Microparticle Particle Size health care economics and organizations Pharmacology chemistry.chemical_classification Coacervate biology Organic Chemistry technology industry and agriculture Serum Albumin Bovine Polymer respiratory system Rats Biochemistry chemistry embryonic structures biology.protein engineering Molecular Medicine Nanoparticles Biotechnology Nuclear chemistry |
| Zdroj: | Pharmaceutical research. 25(12) |
| ISSN: | 0724-8741 |
| Popis: | The purpose of this study was to investigate the preparation process of bone morphogenetic protein-2 (BMP-2) containing bovine serum albumin (BSA) nanoparticles (NPs), and to assess the bioactivity of BMP-2 encapsulated in such NPs.The NPs were prepared by a coacervation method, and the effects of process parameters on NP size and polydispersity were examined. Polymer coated NPs were characterized with respect to amount of adsorbed polymer, particle size and zeta potential. Using bone marrow stromal cells (BMSC), biocompatibility of the NPs was investigated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) Assay, and bioactivity of the encapsulated BMP-2 was investigated by alkaline phosphatase (ALP) induction and calcification.The size of NPs could be controlled in the 50-400 nm range by process parameters including BSA concentration, non-solvent:solvent ratio and pH value. After coating with cationic polymers, the particle size and zeta potential were significantly increased. MTT assay indicated no toxicity of both the uncoated and coated NPs on BMSC. Based on ALP induction and calcification, full retention of BMP-2 bioactivity was retained in the polymer-coated NPs.This study described a preparation procedure for BSA NPs with controllable particle size, and such polymer-coated BSA NPs are promising delivery agents for local and systemic administration of BMP-2 in bone regeneration. |
| Databáze: | OpenAIRE |
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