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Cancer Lett. 2008 Sep 28;269(1):57-66. doi: 10.1016/j.canlet.2008.04.026. Epub 2008 Jun 9.

Gold nanorod assisted near-infrared plasmonic photothermal therapy (PPTT) of squamous cell carcinoma in mice.

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  • 1School of Biology, Ovarian Cancer Institute, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.

Abstract

Plasmonic photothermal therapy (PPTT) is a minimally-invasive oncological treatment strategy in which photon energy is selectively administered and converted into heat sufficient to induce cellular hyperthermia. The present work demonstrates the feasibility of in vivo PPTT treatment of deep-tissue malignancies using easily-prepared plasmonic gold nanorods and a small, portable, inexpensive near-infrared (NIR) laser. Dramatic size decreases in squamous cell carcinoma xenografts were observed for direct (P<0.0001) and intravenous (P<0.0008) administration of pegylated gold nanorods in nu/nu mice. Inhibition of average tumor growth for both delivery methods was observed over a 13-day period, with resorption of >57% of the directly-injected tumors and 25% of the intravenously-treated tumors.

PMID:
18541363
[PubMed - indexed for MEDLINE]
PMCID:
PMC3413727
Free PMC Article

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