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2015 ; 5
(9
): 970-84
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
CD44v6 Monoclonal Antibody-Conjugated Gold Nanostars for Targeted Photoacoustic
Imaging and Plasmonic Photothermal Therapy of Gastric Cancer Stem-like Cells
#MMPMID26155313
Liang S
; Li C
; Zhang C
; Chen Y
; Xu L
; Bao C
; Wang X
; Liu G
; Zhang F
; Cui D
Theranostics
2015[]; 5
(9
): 970-84
PMID26155313
show ga
Developing safe and effective nanoprobes for targeted imaging and selective
therapy of gastric cancer stem cells (GCSCs) has become one of the most promising
anticancer strategies. Herein, gold nanostars-based PEGylated multifunctional
nanoprobes were prepared with conjugated CD44v6 monoclonal antibodies
(CD44v6-GNS) as the targeting ligands. It was observed that the prepared
nanoprobes had high affinity towards GCSC spheroid colonies and destroyed them
completely with a low power density upon near-infrared (NIR) laser treatment (790
nm, 1.5 W/cm(2), 5 min) in vitro experiment. Orthotopic and subcutaneous
xenografted nude mice models of human gastric cancer were established.
Subsequently, biodistribution and photothermal therapeutic effects after being
intravenously injected with the prepared nanoprobes were assessed. Photoacoustic
imaging revealed that CD44v6-GNS nanoprobes could target the gastric cancer
vascular system actively at 4 h post-injection, while the probes inhibited tumor
growth remarkably upon NIR laser irradiation, and even extended survivability of
the gastric cancer-bearing mice. The CD44v6-GNS nanoprobes exhibited great
potential for applications of gastric cancer targeted imaging and photothermal
therapy in the near future.