Uptake and Inhibition of P-Glycoprotein-Mediated Efflux Evaluation of Encapsulated Methotrexate Chitosan and Hypromellose Phthalate Nanoparticles for Potential Glioblastoma Treatment.

ABSTRACT: Background: Methotrexate (MTX), a folic acid antagonist used in chemotherapy, faces limitations due to cancer cell resistance, high toxicity, and low bioavailability. Objective: This study developed nanoparticles (NPs) of chitosan (QS) and hydroxypropylmethylcellulose phthalate (HPMCP) to encapsulate MTX for potential effect investigation on glioblastoma cell targeting and P-gp efflux inhibition. Method: NPs were produced by the polyelectrolyte complexation method and were characterized by DLS, PDI, DSC, FTIR, PXRD, MEV, drug release profile, and an in vitro mucoadhesion test. Cell viability, flow cytometry, and LSCM using U251MG (glioblastoma) and CCD 1059Sk (fibroblasts) cells were used to evaluate glioblastoma and the P-gp efflux effect. Results: NPPM29 (QS3:

SUBMITTER: Naves VML 

PROVIDER: S-EPMC11859166 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature