These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Investigation of imatinib loaded surface decorated biodegradable nanocarriers against glioblastoma cell lines: Intracellular uptake and cytotoxicity studies.
    Author: Khan AM, Ahmad FJ, Panda AK, Talegaonkar S.
    Journal: Int J Pharm; 2016 Jun 30; 507(1-2):61-71. PubMed ID: 27154254.
    Abstract:
    Overexpression of P-glycoprotein (P-gp) efflux transporter in glioma cells thwarts the build-up of therapeutic concentration of drugs usually resulting into poor therapeutic outcome. To surmount aforesaid challenge, Imatinib (IMM) loaded Poly-lactide-co-glycolic acid nanoparticles (IMM-PLGA-NPs) were developed and optimized by Box Behnken Design as a new treatment stratagem in malignant glioma. Optimized NPs were functionalized with Pluronic(®) P84, P-gp inhibitor (IMM-PLGA-P84-NPs) which showed size, PDI, zeta potential, drug loading, 182.63±13.56nm, 0.196±0.021, -15.2±1.49mV, 40.63±2.04μg/mg, respectively. Intracellular uptake study conducted on A172, U251MG and C6 glioma cells demonstrated significantly high uptake of IMM through NPs when compared with IMM solution (IMM-S), p<0.001. IMM-PLGA-P84-NPs showed better uptake in P-gp expressing cell line (U251MG and C6) while uncoated NPs showed higher uptake in non-P-gp expressing cell line (A-172). Cytotoxicity studies demonstrated significantly low IC50 for both IMM-PLGA-NPs and IMM-PLGA-P84-NPs when compared with IC50 of IMM-S. IMM-PLGA-P84-NPs showed a significantly low IC50 against P-gp overexpressing cell lines when compared with IC50 of IMM-PLGA-NPs. In contrary, IMM-PLGA-NPs showed lower IC50 against non P-gp expressing cell line. This study demonstrated the feasibility of targeting surface decorated NPs to multidrug resistant gliomas. However, to address its clinical utility extensive in vivo studies are required.
    [Abstract] [Full Text] [Related] [New Search]