JOURNAL ARTICLE

Doxorubicin-loaded solid lipid nanoparticles to overcome multidrug resistance in cancer therapy

Keon Wook Kang, Myung-Kwan Chun, Ok Kim, Robhash Kusam Subedi, Sang-Gun Ahn, Jung-Hoon Yoon, Hoo-Kyun Choi
Nanomedicine: Nanotechnology, Biology, and Medicine 2010, 6 (2): 210-3
20060074
In the present study we developed doxorubicin-loaded solid lipid nanoparticles (SLN-Dox) using biocompatible compounds, assessed the in vitro hemolytic effect, and examined their in vivo effects on drug retention and apoptosis intensity in P-glycoprotein-overexpressing MCF-7/ADR cells, a representative Dox-resistant breast cancer cell line. Our SLNs did not show hemolytic activity in human erythrocytes. In comparison with Dox, SLN-Dox efficiently enhanced apoptotic cell death through the higher accumulation of Dox in MCF-7/ADR cells. Therefore, SLN-Dox have potential to serve as a useful therapeutic approach to overcome the chemoresistance of adriamycin-resistant breast cancer. FROM THE CLINICAL EDITOR: Doxorubicin loaded solid lipid nanoparticles (SLN-Dox) were studied in a cell line representative of doxorubicin resistant breast cancer. The nanoparticles did not show hemolytic activity; furthermore, they efficiently enhanced apoptotic cell death through higher accumulation of doxorubicin in cancer cells. This approach may be viable in overcoming the chemoresistance of adriamycin resistant breast cancer.

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