TY - JOUR
T1 - Plasmonic copper sulfide nanocrystals exhibiting near-infrared photothermal and photodynamic therapeutic effects
AU - Wang, Shunhao
AU - Riedinger, Andreas
AU - Li, Hongbo
AU - Fu, Changhui
AU - Liu, Huiyu
AU - Li, Linlin
AU - Liu, Tianlong
AU - Tan, Longfei
AU - Barthel, Markus J.
AU - Pugliese, Giammarino
AU - De Donato, Francesco
AU - Scotto D'Abbusco, Marco
AU - Meng, Xianwei
AU - Manna, Liberato
AU - Meng, Huan
AU - Pellegrino, Teresa
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/2/24
Y1 - 2015/2/24
N2 - Recently, plasmonic copper sulfide (Cu2-xS) nanocrystals (NCs) have attracted much attention as materials for photothermal therapy (PTT). Previous reports have correlated photoinduced cell death to the photothermal heat mechanism of these NCs, and no evidence of their photodynamic properties has been reported yet. Herein we have prepared physiologically stable near-infrared (NIR) plasmonic copper sulfide NCs and analyzed their photothermal and photodynamic properties, including therapeutic potential in cultured melanoma cells and a murine melanoma model. Interestingly, we observe that, besides a high PTT efficacy, these copper sulfide NCs additionally possess intrinsic NIR induced photodynamic activity, whereupon they generate high levels of reactive oxygen species. Furthermore, in vitro and in vivo acute toxic responses of copper sulfide NCs were also elicited. This study highlights a mechanism of NIR light induced cancer therapy, which could pave the way toward more effective nanotherapeutics.
AB - Recently, plasmonic copper sulfide (Cu2-xS) nanocrystals (NCs) have attracted much attention as materials for photothermal therapy (PTT). Previous reports have correlated photoinduced cell death to the photothermal heat mechanism of these NCs, and no evidence of their photodynamic properties has been reported yet. Herein we have prepared physiologically stable near-infrared (NIR) plasmonic copper sulfide NCs and analyzed their photothermal and photodynamic properties, including therapeutic potential in cultured melanoma cells and a murine melanoma model. Interestingly, we observe that, besides a high PTT efficacy, these copper sulfide NCs additionally possess intrinsic NIR induced photodynamic activity, whereupon they generate high levels of reactive oxygen species. Furthermore, in vitro and in vivo acute toxic responses of copper sulfide NCs were also elicited. This study highlights a mechanism of NIR light induced cancer therapy, which could pave the way toward more effective nanotherapeutics.
KW - copper sulfide nanocrystals
KW - near-infrared light
KW - photodynamic therapy
KW - photothermal therapy
UR - http://www.scopus.com/inward/record.url?scp=84923392368&partnerID=8YFLogxK
U2 - 10.1021/nn506687t
DO - 10.1021/nn506687t
M3 - Article
C2 - 25603353
AN - SCOPUS:84923392368
SN - 1936-0851
VL - 9
SP - 1788
EP - 1800
JO - ACS Nano
JF - ACS Nano
IS - 2
ER -