期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 389, 期 1, 页码 84-89出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2009.08.091
关键词
Promyelocytic leukemia protein; Influenza A virus; Replication
资金
- National Natural Science Foundation of China [30571674, 30771988]
- Guangdong Natural Science Foundation [05008347, 8151503 102000022]
- Guangdong Province Education Department [LYM08056]
Promyelocytic leukemia protein (PML) plays an important role in the defense against a number of viruses, including influenza A virus. However, the sensitivity of influenza A virus subtypes/strains to PML is unknown. We investigated the role of PML in the replication of different influenza A virus subtypes/strains using pan-PML knock-down A549 cells and PML-VI-overexpressed MDCK cells. We found that (i) depletion of pan-PML by siRNA rendered A549 cells more susceptible to influenza A virus strains PR8(H1N1) and ST364(H3N2), but not to strains ST1233(H1N1), Qa199(H9N2) and Ph2246(H9N2); (ii) overexpression of PML-VI in MDCK cells conferred potent resistance to PR8(H1N1) infection, while lacked inhibitory activity to ST1233(H1N1), ST364(H3N2), Qa199(H9N2) and Ph2246(H9N2). Our results suggest that the antiviral effect of PML on influenza A viruses is viral subtype/strain specific. (C) 2009 Elsevier Inc. All rights reserved.
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