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Journal of Microencapsulation
Micro and Nano Carriers
Volume 31, 2014 - Issue 3
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Research Article

N-lauroyl chitosan surface-modified PLGA nanoparticles as carrier for adriamycin to overcome cancer drug resistance

Jing LiIndustrial Products Safety Center of Tianjin Entry-Exit Inspection and Quarantine Bureau TianjinChina
,
Ping ZhouTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChina
,
Yan WangTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChina
,
Hongli ChenHenan Key Laboratory of Hereditary Disease and Molecular Target Drug Therapy (Cultivating Base), Department of Life Science and Technology, Xinxiang Medical University Xinxiang, HenanChina
,
Cong ZhangTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChina
,
Rongshan LiTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChina
,
Xiaoying YangTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChina
&
Yinsong WangTianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University TianjinChinaCorrespondence[email protected]
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Pages 203-210 | Received 21 Feb 2013, Accepted 17 Jun 2013, Published online: 13 Aug 2013
 
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Abstract

N-lauroyl chitosan (NLCS) conjugates with different degrees of substitution (DS) of lauroyl group were synthesized and used to prepare surface modified poly(lactic-co-glycolic) acid (NLCS-PLGA) nanoparticles via hydrophobic interaction and ionic bond force. NLCS-PLGA nanoparticles had spherical shape with shell-core structure and exhibited the smallest size and narrowest size distribution when DS of lauroyl group of NLCS was 8.5%. Adriamycin (ADR), as a model antitumor drug, was loaded into NLCS-PLGA nanoaprticles and its initial burst release from PLGA nanoparticles was significantly reduced. MTT assay showed that NLCS-2-PLGA nanoaprticles evidently enhanced cytotoxicity of ADR against drug-resistant breast cancer MCF-7/ADR cells, both compared to free ADR and ADR-loaded PLGA nanoparticles. Moreover, cell-live images showed that the cellular uptake and nuclear location of ADR in MCF-7/ADR cells were significantly enhanced by loading of NLCS-2-PLGA nanoparticles. In conclusion, this novel carrier of anticancer drugs has the potential to overcome drug resistance in cancer cells.

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