Gastrin Releasing Protein Receptor Specific Gold Nanorods: Breast and Prostate Tumor Avid Nanovectors for Molecular Imaging

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Gastrin Releasing Protein Receptor Specific Gold Nanorods: Breast and Prostate Tumor Avid Nanovectors for Molecular Imaging

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/9061

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Title: Gastrin Releasing Protein Receptor Specific Gold Nanorods: Breast and Prostate Tumor Avid Nanovectors for Molecular Imaging
Author: Chanda, Nripen; Shukla, Ravi; Katti, Kattesh V.; Kannan, Raghuraman
Keywords: nanorods
molecular imaging
Gastrin releasing protein receptor specific bombesin
Date: 2009-04-07
Publisher: American Chemical Society
Citation: Nano Lett., 2009, 9 (5), pp 1798-1805.
Abstract: Gastrin releasing protein receptor specific bombesin (BBN) peptide-gold nanoconjugates were successfully synthesized using gold nanorods and dithiolated peptide. The gold nanorod-bombesin (GNR-BBN) conjugates showed extraordinary in vitro stabilities against various biomolecules including NaCl, cysteine, histidine, bovine serum albumin, human serum albumin, and dithiothreitol. Quantitative measurements on the binding affinity (IC50) of GNR-BBN conjugates toward prostate and breast tumor cells were evaluated. The IC50 values establish that GNR-BBN conjugates have strong affinity toward the gastrin releasing peptide receptors on both the tumors. Detailed cellular interaction studies of GNR-BBN conjugates revealed that nanorods internalize via a receptor-mediated endocytosis pathway. The receptor specific interactions of GNR-BBN conjugates provide realistic opportunities in the design and development of in vivo molecular imaging and therapy agents for cancer.
URI: http://hdl.handle.net/10355/9061
ISSN: 1530-6984

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