RGD-conjugated dendrimer-modified gold nanorods for in vivo tumor targeting and photothermal therapy.
Successful development of safe and effective nanoprobes for tumor targeting and selective therapy is a challenging task. Although gold nanorods(GNRs) have the potential to perform such a role, the toxicity of surfactant cetyltrimethylammonium bromides (CTAB) on their surfaces limits their applications. Here, polyamidoamine dendrimer was applied to replace CTAB molecules on the surface of gold nanorods. When the resultant dendrimer-modified gold nanorods conjugated with arginine-glycine-aspartic acid (RGD) peptides, they showed highly selective targeting and destructive effects on the cancer cells and solid tumors under near-infrared laser irradiation. Also, we successfully observed the disappearance of tumors implanted in four sample mice from test group of ten. High-performance RGD-conjugated dendrimer-modified GNR nanoprobes exhibit great potential in applications such as tumor targeting, imaging, and selective photothermal therapy.
Li
Zhiming
Z
Institute for Laser Medicine & Biophotonics, School of Life Sciences and Biotechnology, and National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Huang
Peng
P
Zhang
Xuejun
X
Lin
Jing
J
Yang
Sen
S
Liu
Bing
B
Gao
Feng
F
Xi
Peng
P
Ren
Qiushi
Q
Cui
Daxiang
D
D000818:Animals; D045744:Cell Line, Tumor; D050091:Dendrimers / Q000737:chemistry; D005260:Female; D006046:Gold; D006358:Hot Temperature / Q000627:therapeutic use; D006801:Humans; D053768:Metal Nanoparticles / Q000737:chemistry / Q000627:therapeutic use* / Q000648:ultrastructure; D051379:Mice; D008819:Mice, Nude; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry / Q000648:ultrastructure; D009374:Neoplasms, Experimental / Q000473:pathology / Q000628:therapy*; D009842:Oligopeptides / Q000737:chemistry; D010789:Phototherapy / Q000379:methods*; D023041:Xenograft Model Antitumor Assays
D050091:Dendrimers; D009842:Oligopeptides; D006046:Gold; C047981:arginyl-glycyl-aspartic acid