Thioaptamer decoy targeting of AP-1 proteins influences cytokine expression and the outcome of arenavirus infections

Susan M. Fennewald, Erin P. Scott, Lihong Zhang, Xianbin Yang, Judith F. Aronson, David G. Gorenstein, Bruce A. Luxon, Robert E. Shope, David W C Beasley, Alan D T Barrett, Norbert K. Herzog

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Viral haemorrhagic fever (VHF) is caused by a number of viruses, including arenaviruses. The pathogenesis is believed to involve dysregulation of cytokine production. The arenaviruses Lassa virus and Pichinde virus have a tropism for macrophages and other reticuloendothelial cells and both appear to suppress the normal macrophage response to virus infection. A decoy thioaptamer, XBY-S2, was developed and was found to bind to AP-1 transcription factor proteins. The P388D1 macrophage-like cell line contains members of the AP-1 family which may act as negative regulators of AP-1-controlled transcription. XBY-S2 was found to bind to Fra-2 and JunB, and enhance the induction of cytokines IL-6, IL-8 and TNF-α, while reducing the binding to AP-1 promoter elements. Administration of XBY-S2 to Pichinde virus-infected guinea pigs resulted in a significant reduction in Pichinde virus-induced mortality and enhanced the expression of cytokines from primary guinea pig macrophages, which may contribute to its ability to increase survival of Pichinde virus-infected guinea pigs. These data demonstrate a proof of concept that thioaptamers can be used to modulate the outcome of in vivo viral infections by arenaviruses by the manipulation of transcription factors involved in the regulation of the immune response.

Original languageEnglish (US)
Pages (from-to)981-990
Number of pages10
JournalJournal of General Virology
Volume88
Issue number3
DOIs
StatePublished - Mar 2007

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Arenaviridae Infections
Pichinde virus
Arenavirus
Transcription Factor AP-1
Macrophages
Cytokines
Guinea Pigs
Virus Diseases
Proteins
Lassa virus
Viral Hemorrhagic Fevers
Tropism
Interleukin-8
Interleukin-6
Transcription Factors
Viruses
Cell Line
Mortality

ASJC Scopus subject areas

  • Virology
  • Immunology

Cite this

Thioaptamer decoy targeting of AP-1 proteins influences cytokine expression and the outcome of arenavirus infections. / Fennewald, Susan M.; Scott, Erin P.; Zhang, Lihong; Yang, Xianbin; Aronson, Judith F.; Gorenstein, David G.; Luxon, Bruce A.; Shope, Robert E.; Beasley, David W C; Barrett, Alan D T; Herzog, Norbert K.

In: Journal of General Virology, Vol. 88, No. 3, 03.2007, p. 981-990.

Research output: Contribution to journalArticle

Fennewald, Susan M. ; Scott, Erin P. ; Zhang, Lihong ; Yang, Xianbin ; Aronson, Judith F. ; Gorenstein, David G. ; Luxon, Bruce A. ; Shope, Robert E. ; Beasley, David W C ; Barrett, Alan D T ; Herzog, Norbert K. / Thioaptamer decoy targeting of AP-1 proteins influences cytokine expression and the outcome of arenavirus infections. In: Journal of General Virology. 2007 ; Vol. 88, No. 3. pp. 981-990.
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