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ID 50636
フルテキストURL
著者
Kuroki, Misao Okayama Univ, Dept Tumor Virol, Sch Med Dent & Pharmaceut Sci
Ariumi, Yasuo Okayama Univ, Dept Tumor Virol, Sch Med Dent & Pharmaceut Sci
Hijikata, Makoto Kyoto Univ, Dept Viral Oncol, Inst Virus Res
Ikeda, Masanori Okayama Univ, Dept Tumor Virol, Sch Med Dent & Pharmaceut Sci
Dansako, Hiromichi Okayama Univ, Dept Tumor Virol, Sch Med Dent & Pharmaceut Sci
Wakita, Takaji Natl Inst Infect Dis, Dept Virol 2
Shimotohno, Kunitada Natl Ctr Global Hlth & Med, Res Ctr Hepatitis & Immunol
Kato, Nobuyuki Okayama Univ, Dept Tumor Virol, Sch Med Dent & Pharmaceut Sci
抄録
PML tumor suppressor protein, which forms discrete nuclear structures termed PML-nuclear bodies, has been associated with several cellular functions, including cell proliferation, apoptosis and antiviral defense. Recently, it was reported that the HCV core protein colocalizes with PML in PML-NBs and abrogates the PML function through interaction with PML. However, role(s) of PML in HCV life cycle is unknown. To test whether or not PML affects HCV life cycle, we examined the level of secreted HCV core and the infectivity of HCV in the culture supernatants as well as the level of HCV RNA in HuH-7-derived RSc cells, in which HCV-JFH1 can infect and efficiently replicate, stably expressing short hairpin RNA targeted to PML. In this context, the level of secreted HCV core and the infectivity in the supernatants from PML knockdown cells was remarkably reduced, whereas the level of HCV RNA in the PML knockdown cells was not significantly affected in spite of very effective knockdown of PML. In fact, we showed that PML is unrelated to HCV RNA replication using the subgenomic HCV-JFH1 replicon RNA, JRN/3-5B. Furthermore, the infectivity of HCV-like particle in the culture supernatants was significantly reduced in PML knockdown JRN/3-5B cells expressing core to NS2 coding region of HCV-JFH1 genome using the trans-packaging system. Finally, we also demonstrated that INI1 and DDX5, the PML-related proteins, are involved in HCV production. Taken together, these findings suggest that PML is required for HCV production.
キーワード
Hepatitis C virus
PML
INI1
DDX5
Tumor suppressor
Lipid droplet
発行日
2013-01-11
出版物タイトル
Biochemical and Biophysical Research Communications
430巻
2号
出版者
Academic Press Inc Elsevier Science
開始ページ
592
終了ページ
597
ISSN
0006-291X
NCID
AA00564395
資料タイプ
学術雑誌論文
オフィシャル URL
http://dx.doi.org/10.1016/j.bbrc.2012.11.108
関連URL
http://ousar.lib.okayama-u.ac.jp/metadata/50690
言語
English
著作権者
(C) 2012 Published by Elsevier Inc. All rights reserved.
論文のバージョン
author
査読
有り
DOI
Web of Sience KeyUT