Journal
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
Volume 45, Issue 5, Pages 703-714Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03639045.2018.1550091
Keywords
Mixed micelles; Naringin; Paclitaxel; co-delivery; cellular uptake; anticancer
Categories
Funding
- Organization for the Prohibition of Chemical Weapons [L/ICA/ICB/194480/14]
- Higher education commission of Pakistan [5754]
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Emergence of multidrug resistance (MDR) has limited the success of chemotherapeutic agents. Reversal of drugs efflux systems through combination therapy has got wider attention for increasing anticancer drugs efficacy. This study aims at co-encapsulation of Paclitaxel with Naringin in mixed polymeric micelles for enhanced anticancer activity of the drug. Drug-loaded micelles were prepared using two different amphiphilic block co-polymers and were characterized for morphology, size, zeta potential, drug encapsulation, in vitro release and stability using atomic force microscope (AFM), zetasizer, UV spectrophotometer, and FT-IR. MTT assay and fluorescence microscopy were used for in vitro cytotoxicity and cellular uptake studies. Nano-size micelles with spherical morphology and negative charge encapsulated 76.52 +/- 0.94% and 32.87 0.61% Paclitaxel and Naringin, respectively. The micelles were thermally stable and retained 87.05 +/- 0.69% and 92.88 +/- 2.17% Paclitaxel and Naringin upon one-month storage. Maximum drug release was achieved at fourth hour of the study for both the loaded drugs. Paclitaxel co-encapsulation with Naringin synergistically improved its intracellular uptake and 65% in vitro cytotoxicity against breast cancer cells was achieved at its lower dose of 15 mu g/mL. Results suggest that co-encapsulation of Paclitaxel with Naringin in mixed micelles is an effective strategy for achieving its higher anticancer activity.
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