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Title: Dengue virus disrupts Daxx and NF-κB interaction to induce CD137-mediated apoptosis
Authors: Janjuree Netsawang
Jutatip Panaampon
Sasiprapa Khunchai
Suwattanee Kooptiwut
Amar Nagila
Chunya Puttikhunt
Pa Thai Yenchitsomanus
Thawornchai Limjindaporn
Rangsit University
Mahidol University
Thailand National Center for Genetic Engineering and Biotechnology
Keywords: Biochemistry, Genetics and Molecular Biology
Issue Date: 8-Aug-2014
Citation: Biochemical and Biophysical Research Communications. Vol.450, No.4 (2014), 1485-1491
Abstract: Dengue virus (DENV) is a positive-strand RNA virus of the Flavivirus family with 4 different serotypes. Clinical manifestations of DENV infection include dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. Following DENV infection, apoptosis of hepatic cells is observed both in vitro and in vivo. However, the molecular mechanisms revealing how viral components affect cellular apoptosis remain unclear. In the present study, the role of death domain-Associated protein 6 (Daxx) in DENV-mediated apoptosis was characterized by RNA interference and overexpression studies, and the anti-Apoptotic function of Daxx during DENV infection was identified. Furthermore, the viral component, DENV capsid protein (DENV C), interacted with Daxx to disrupt interaction between Daxx and NF-κB. The liberated NF-κB activated the promoter of CD137, which is a member of the TNF family, and is previously shown to induce apoptosis during DENV infection. In summary, DENV C disrupts Daxx and NF-κB interaction to induce CD137-mediated apoptosis during DENV infection. © 2014 Elsevier Inc. All rights reserved.
ISSN: 10902104
Appears in Collections:Scopus 2011-2015

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