TAT peptide-functionalized gold nanostars: enhanced intracellular delivery and efficient NIR photothermal therapy using ultralow irradiance.
TAT peptide-functionalized gold nanostars: enhanced intracellular delivery and efficient NIR photothermal therapy using ultralow irradiance.
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TAT肽官能化的金纳米级:使用超低辐照度增强了细胞内递送和有效的NIR光热治疗。
DOI:
10.1021/ja304180y
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发表时间:
2012-07-18
影响因子:
15
通讯作者:
Vo-Dinh, Tuan
中科院分区:
文献类型:
--
作者:
Yuan, Hsiangkuo;Fales, Andrew M.;Vo-Dinh, Tuan
Gold nanoparticles have great potentials for plasmonic photothermal therapy (photothermolysis). However, their intracellular delivery and photothermolysis efficiency have yet been optimized. Here, we show that TAT-peptide functionalized gold nanostars enter cells significantly more than bare or PEGylated nanostars. Their major cellular uptake mechanism involves actin-driven lipid raft-mediated macropinocytosis, where particles primarily accumulate in macropinosomes but may also leak out into the cytoplasm. Following 4-hour incubation of TAT-nanostars on BT549 breast cancer cells, photothermolysis was accomplished using 850 nm pulsed laser under an irradiance of 0.2 W/cm2, which is lower than the maximal permissible exposure of skin. These results demonstrate the enhanced intracellular delivery and efficient photothermolysis of TAT-nanostars hence a promising agent in cancer therapy.
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DOI:
10.3402/nano.v1i0.4889
发表时间:
2010
期刊:
Nano reviews
影响因子:
--
作者:
Lévy R;Shaheen U;Cesbron Y;Sée V
通讯作者:
Sée V
影响因子:
3.5
作者:
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影响因子:
13.3
作者:
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Kanaras, Antonios G.
影响因子:
17.1
作者:
Huang X;Peng X;Wang Y;Wang Y;Shin DM;El-Sayed MA;Nie S
通讯作者:
Nie S
影响因子:
3.3
作者:
Panté, N;Kann, M
通讯作者:
Kann, M