Xu H, Yuan R, Liu X, Li X, Qiao G, Li C, Gedanken A, Lin X.
Zn-doped CuO nanocomposites inhibit tumor growth by NF-κB pathway cross-linked autophagy and apoptosis.
Nanomedicine (Lond) 2018;
14:131-149. [PMID:
30394176 DOI:
10.2217/nnm-2018-0366]
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Abstract
AIM
To investigate the antitumor effects and action mechanism of Zn-doped CuO nanocomposites (Zn-CuONPs).
MATERIALS & METHODS
Therapeutic effects and mechanisms of Zn-CuONPs were investigated both in vitro and in vivo.
RESULTS
Zn-CuONPs could inhibit tumor growth both in vitro and in vivo significantly. Zn-CuONPs treatment resulted in cytotoxicity, reactive oxygen species (ROS) production, DNA damage, apoptosis and autophagy. ROS scavenger N-acetylcysteine attenuated all of the above effects induced by Zn-CuONPs. N-acetylcysteine also restored the effects of Zn-CuONPs on protein expressions related to apoptosis, autophagy and NF-κB pathways. NF-κB pathway inhibitor pyrrolidine dithiocarbamate significantly attenuated Zn-CuONPs induced apoptosis and autophagy.
CONCLUSION
Our data demonstrated that Zn-CuONPs could inhibit tumor growth both in vitro and in vivo by ROS-dependent apoptosis and autophagy cross-linked by NF-κB pathways.
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