Journal
ADVANCED HEALTHCARE MATERIALS
Volume 3, Issue 8, Pages 1283-1291Publisher
WILEY
DOI: 10.1002/adhm.201400026
Keywords
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Funding
- NCI [R01 CA13852701]
- NIH [DP1 OD000798]
- Georgia Institute of Technology
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Cancer stem cells (CSCs) are believed to be responsible for the long-term growth of a tumor, as well as its metastasis and recurrence after conventional therapies. Here, it is demonstrated that the sigma-2 receptor is overexpressed on the surface of breast CSCs, and thus could serve as a biomarker for the purpose of targeting. Breast CSCs are targeted with Au nanocages (AuNCs) by functionalizing their surfaces with SV119, a synthetic small molecule capable of binding to the sigma-2 receptor with high specificity. The interiors of the AuNCs could also be loaded with an anticancer drug to be selectively delivered to breast CSCs and released in a controllable fashion. The results demonstrate that the SV119-AuNC conjugate can serve as a new platform to carry out photothermal and chemo therapies simultaneously, eradicating breast CSCs more effectively through a synergetic effect.
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