Abstract

Silver nanoparticle (nAg), which is one of the most common manufactured nanomaterials, has a wide range of biomedical applications. The human oncogenic γ-herpesviruses, Kaposi’s sarcoma-associated herpesvirus (KSHV) and Epstein–Barr Virus (EBV), are etiologically linked to many malignancies. Currently, there are no efficient or specific treatments for these types of tumors, and most patients die because of resistance to conventional cytotoxic chemotherapy. Despite nAg having antitumor and antiviral activities, its effects on oncogenic herpesvirus-related cancer cells remain largely unknown. Here, we reveal that nAg presents higher cytotoxicity against KSHV- or EBV-latently infected cells via reactivating viral lytic replication, which relies on the induction of reactive oxygen species (ROS) generation and autophagy. Moreover, nAg blocks KSHV primary infection by directly destroying virion particles, as well as effectively inhibits colony formation and moderately represses the growth of KSHV-associated tumors in xenograft mouse model. Taken together, these results demonstrate the therapeutic potential of nAg for use in the antiviral infection and treatment of oncogenic herpesvirus-related cancers.

Details

Title
Silver nanoparticles selectively induce human oncogenic γ-herpesvirus-related cancer cell death through reactivating viral lytic replication
Author
Wan Chunlei 1 ; Tai Jiahui 1 ; Zhang, Jie 2 ; Guo, Yi 3 ; Zhu, Qing 1 ; Ding, Ling 1 ; Gu, Feng 1 ; Gan, Jin 1 ; Zhu Caixia 1 ; Wang, Yuyan 1 ; Liu, Sijin 2 ; Fang, Wei 4 ; Cai Qiliang 5 

 Fudan University, MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Science, Shanghai Medical College, Shanghai, P. R. China (GRID:grid.8547.e) (ISNI:0000 0001 0125 2443) 
 State Key Laboratory of Environmental Chemistry and Ecotoxcicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing, P. R. China (GRID:grid.419052.b) (ISNI:0000 0004 0467 2189) 
 First Affiliated Hospital of China Medical University, Department of Gynecology, Key laboratory of AIDS immunology of Ministry of Health, Shengyang, P. R. China (GRID:grid.419052.b) 
 Shanghai Jiao Tong University, ShengYushou Center of Cell Biology and Immunology, School of Life Sciences and Biotechnology, Shanghai, P. R. China (GRID:grid.16821.3c) (ISNI:0000 0004 0368 8293) 
 Fudan University, MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Science, Shanghai Medical College, Shanghai, P. R. China (GRID:grid.8547.e) (ISNI:0000 0001 0125 2443); Expert Workstation, Baoji Central Hospital, Baoji, P. R. China (GRID:grid.489934.b) 
Publication year
2019
Publication date
Jun 2019
Publisher
Springer Nature B.V.
e-ISSN
20414889
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2228645294
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.