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Article Publish Status: FREE
Abstract Title:

Biodegradable polymeric micelles coencapsulating paclitaxel and honokiol: a strategy for breast cancer therapy in vitro and in vivo.

Abstract Source:

Int J Nanomedicine. 2017 ;12:1499-1514. Epub 2017 Feb 23. PMID: 28260895

Abstract Author(s):

Ning Wang, Zhihan Wang, Shihong Nie, Linjiang Song, Tao He, Suleixin Yang, Xi Yang, Cheng Yi, Qinjie Wu, Changyang Gong

Article Affiliation:

Ning Wang

Abstract:

The combination of chemotherapy drugs attracts more attention in clinical cancer trials. However, the poor water solubility of chemotherapeutic drugs restricts their anticancer application. In order to improve antitumor efficiency and reduce side effects of free drugs, we prepared paclitaxel (PTX) and honokiol (HK) combination methoxy poly(ethylene glycol)-poly(caprolactone) micelles (P-H/M) by solid dispersion method against breast cancer. The particle size of P-H/M was 28.7±2.5 nm, and transmission electron microscope image confirmed that P-H/M were spherical in shape with small particle size. After being encapsulated in micelles, the release of PTX or HK showed a sustained behavior in vitro. In addition, both the cytotoxicity and the cellular uptake of P-H/M were increased in 4T1 cells, and P-H/M induced more apoptosis than PTX-loaded micelles or HK-loaded micelles, as analyzed by flow cytometry assay and Western blot. Furthermore, the antitumor effect of P-H/M was significantly improved compared with PTX-loaded micelles or HK-loaded micelles in vivo. P-H/M were more effective in inhibiting tumor proliferation, inducing tumor apoptosis, and decreasing the density of microvasculature. Moreover, bioimaging analysis showed that drug-loaded polymeric micelles could accumulate more in tumor tissues compared with the free drug. Our results suggested that P-H/Mmay have potential applications in breast cancer therapy.

Study Type : Animal Study, In Vitro Study

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Sayer Ji
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