Microparticles prepared from biodegradable polyhydroxyalkanoates as matrix for encapsulation of cytostatic drug.

TitleMicroparticles prepared from biodegradable polyhydroxyalkanoates as matrix for encapsulation of cytostatic drug.
Publication TypeJournal Article
Year of Publication2013
AuthorsMurueva, AV, Shishatskaya, EI, Kuzmina, AM, Volova, TG, Sinskey, AJ
JournalJ Mater Sci Mater Med
Date Published2013 Aug
KeywordsAbsorbable Implants, Animals, Cytostatic Agents, Doxorubicin, Drug Carriers, Drug Compounding, Drug Evaluation, Preclinical, Materials Testing, Mice, Microscopy, Electron, Scanning, Microspheres, Models, Biological, NIH 3T3 Cells, Particle Size, Polyhydroxyalkanoates, Polymers

Microparticles made from degradable polyhydroxyalkanoates of different chemical compositions a homopolymer of 3-hydroxybutyric acid, copolymers of 3-hydroxybutyric and 4-hydroxybutyric acids (P3HB/4HB), 3-hydroxybutyric and 3-hydroxyvaleric acids (P3HB/3HV), 3-hydroxybutyric and 3-hydroxyhexanoic acids (P3HB/3HHx) were prepared using the solvent evaporation technique, from double emulsions. The study addresses the influence of the chemical compositions on the size and ξ-potential of microparticles. P3HB microparticles loaded with doxorubicin have been prepared and investigated. Their average diameter and ξ-potential have been found to be dependent upon the level of loading (1, 5, and 10 % of the polymer mass). Investigation of the in vitro drug release behavior showed that the total drug released from the microparticle into the medium increased with mass concentration of the drug. In this study mouse fibroblast NIH 3T3 cells were cultivated on PHA microparticles, and results of using fluorescent DAPI DNA stain, and MTT assay showed that microparticles prepared from PHAs of different chemical compositions did not exhibit cytotoxicity to cells cultured on them and proved to be highly biocompatible. Cell attachment and proliferation on PHA microparticles were similar to those on polystyrene. The cytostatic drug encapsulated in P3HB/3HV microparticles has been proven to be effective against HeLa tumor cells.

Alternate JournalJ Mater Sci Mater Med
Citation Key112
PubMed ID23674057