Activation of phosphatidylinositol 3-kinase signaling by the nonstructural NS1 protein is not conserved among type a and B influenza viruses

被引:41
作者
Ehrhardt, Christina
Wolff, Thorsten
Ludwig, Stephan
机构
[1] Univ Munster, Inst Mol Virol, ZMBE, D-48149 Munster, Germany
[2] Robert Koch Inst, D-133533 Berlin, Germany
关键词
D O I
10.1128/JVI.01216-07
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Recently it has been shown by several laboratories that the influenza A virus nonstructural protein 1 (A/NS1) binds and activates phosphatidylinositol 3-kinase (PI3K). This function of the protein is likely to prevent premature apoptosis induction during viral propagation. Here we show that the B/NS1 protein completely lacks the capacity to induce PI3K signaling. Thus, PI3K activation is another unique function of A/NS1 that is different from the action of its influenza B virus counterpart.
引用
收藏
页码:12097 / 12100
页数:4
相关论文
共 23 条
[1]   Mechanism of activation of protein kinase B by insulin and IGF-1 [J].
Alessi, DR ;
Andjelkovic, M ;
Caudwell, B ;
Cron, P ;
Morrice, N ;
Cohen, P ;
Hemmings, BA .
EMBO JOURNAL, 1996, 15 (23) :6541-6551
[2]   The influenza B virus nonstructural NSI protein is essential for efficient viral growth and antagonizes beta interferon induction [J].
Dauber, B ;
Heins, G ;
Wolff, T .
JOURNAL OF VIROLOGY, 2004, 78 (04) :1865-1872
[3]   Double-stranded RNA binding of influenza B virus nonstructural NS1 protein inhibits protein kinase R but is not essential to antagonize production of alpha/beta interferon [J].
Dauber, Bianca ;
Schneider, Jana ;
Wolff, Thorsten .
JOURNAL OF VIROLOGY, 2006, 80 (23) :11667-11677
[4]   Rac1 and PAK1 are upstream of IKK-ε and TBK-1 in the viral activation of interferon regulatory factor-3 [J].
Ehrhardt, C ;
Kardinal, C ;
Wurzer, WJ ;
Wolff, T ;
von Eichel-Streiber, C ;
Pleschka, S ;
Planz, O ;
Ludwig, S .
FEBS LETTERS, 2004, 567 (2-3) :230-238
[5]   Influenza A virus NS1 protein activates the PI3K/Akt pathway to mediate antiapoptotic signaling responses [J].
Ehrhardt, Christina ;
Wolff, Thorsten ;
Pleschka, Stephan ;
Planz, Oliver ;
Beermann, Wiebke ;
Bode, Johannes G. ;
Schmolke, Mirco ;
Ludwig, Stephan .
JOURNAL OF VIROLOGY, 2007, 81 (07) :3058-3067
[6]   Bivalent role of the phosphatidylinositol-3-kinase (PI3K) during influenza virus infection and host cell defence [J].
Ehrhardt, Christina ;
Marjuki, Henju ;
Wolff, Thorsten ;
Nuernberg, Bernd ;
Planz, Oliver ;
Pleschka, Stephan ;
Ludwig, Stephan .
CELLULAR MICROBIOLOGY, 2006, 8 (08) :1336-1348
[7]  
García-Sastre A, 2004, CURR TOP MICROBIOL, V283, P249
[8]   Influenza A virus lacking the NS1 gene replicates in interferon-deficient systems [J].
García-Sastre, A ;
Egorov, A ;
Matassov, D ;
Brandt, S ;
Levy, DE ;
Durbin, JE ;
Palese, P ;
Muster, T .
VIROLOGY, 1998, 252 (02) :324-330
[9]   PI3K signalling during influenza A virus infections [J].
Hale, B. G. ;
Randall, R. E. .
BIOCHEMICAL SOCIETY TRANSACTIONS, 2007, 35 :186-187
[10]   Influenza A virus NS1 protein binds p85β and activates phosphatidylinositol-3-kinase signaling [J].
Hale, Benjamin G. ;
Jackson, David ;
Chen, Yun-Hsiang ;
Lamb, Robert A. ;
Randall, Richard E. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (38) :14194-14199