Unbound MEDLINE

Characterization and in-vitro bioactivity evaluation of paclitaxel-loaded polyester nanoparticles.

Abstract

Paclitaxel, an antimicrotubular agent used in the treatment of ovarian and breast cancer, was encapsulated in nanoparticles of poly(DL-lactide-co-glycolide) and poly(ε-caprolactone) polymers using the double emulsion-solvent evaporation technique. The morphology, size distribution, drug encapsulation efficiency, thermal degradation and in-vitro drug release profile were characterized. High-performance liquid chromatography was used to determine the drug encapsulation efficiency and in-vitro drug release profile. MCF-7 breast cancer cells were used to evaluate the cytotoxicity (MTT assay), the cellular uptake and the cell cycle. The particle size was in the range of 200-400 nm. Poly(lactide-co-glycolide) nanoparticles showed more effective cellular uptake compared with those of poly(ε-caprolactone). Unloaded nanoparticles were found to be cytocompatible on MCF-7 cells and paclitaxel formulations showed efficacy in killing MCF-7 cells. Paclitaxel-loaded nanoparticles induced the release of the drug-blocking cells in the G2/M phase. Paclitaxel-loaded nanoparticles may be considered a promising drug delivery system in the evaluation of an in-vivo model.

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  • Publisher Full Text
  • Authors

    López-Gasco P, Iglesias I, Benedí J, Lozano R, Blanco MD

    Source

    Anti-cancer drugs 23:9 2012 Oct pg 947-58

    MeSH

    Cell Culture Techniques
    Cell Cycle
    Cell Survival
    Chromatography, High Pressure Liquid
    Drug Carriers
    Drug Compounding
    Endocytosis
    Flow Cytometry
    Humans
    MCF-7 Cells
    Microscopy, Fluorescence
    Nanoparticles
    Paclitaxel
    Particle Size
    Polyesters
    Polyglactin 910
    Solubility
    Surface Properties
    Thermogravimetry

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    22713593