Doxorubicin-loaded star-shaped copolymer PLGA-vitamin E TPGS nanoparticles for lung cancer therapy

Journal of Materials Science. Materials in Medicine
Jinxie ZhangLaiqiang Huang

Abstract

A doxorubicin-loaded mannitol-functionalized poly(lactide-co-glycolide)-b-D-α-tocopheryl polyethylene glycol 1000 succinate nanoparticles (DOX-loaded M-PLGA-b-TPGS NPs) were prepared by a modified nanoprecipitation method. The NPs were characterized by the particle size, surface morphology, particle stability, in vitro drug release and cellular uptake efficiency. The NPs were near-spherical with narrow size distribution. The size of M-PLGA-b-TPGS NPs was ~110.9 nm (much smaller than ~143.7 nm of PLGA NPs) and the zeta potential was -35.8 mV (higher than -42.6 mV of PLGA NPs). The NPs exhibited a good redispersion since the particle size and surface charge hardly changed during 3-month storage period. In the release medium (phosphate buffer solution vs. fetal bovine serum), the cumulative drug release of DOX-loaded M-PLGA-b-TPGS, PLGA-b-TPGS, and PLGA NPs were 76.41 versus 83.11 %, 58.94 versus 73.44 % and 45.14 versus 53.12 %, respectively. Compared with PLGA-b-TPGS NPs and PLGA NPs, the M-PLGA-b-TPGS NPs possessed the highest cellular uptake efficiency in A549 and H1975 cells (lung cancer cells). Ultimately, both in vitro and in vivo antitumor activities were evaluated. The results showed that M-PLGA-b-TPGS NPs could achieve a...Continue Reading

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Citations

Apr 22, 2016·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Yihan XuDonghun Koo
Sep 15, 2017·Journal of Drug Targeting·Ummarah KanwalAbida Raza
Apr 3, 2019·International Journal of Molecular Sciences·Seyed Ebrahim AlaviAzim Akbarzadeh
Dec 4, 2020·Journal of Controlled Release : Official Journal of the Controlled Release Society·Ge Fiona GaoMatthias G Wacker
Jun 18, 2021·Nano-micro Letters·Shruti Rawal, Mayur Patel

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