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Inhibition of nuclear factor kappa B activation reduces Coxsackievirus B3 replication in lymphoid cells

Katharina Sobotta1, Steffi Wilsky, Nadine Althof

  • 1Department of Virology and Antiviral Therapy, Jena University Hospital, Friedrich Schiller University Jena, Hans-Knöll-Str. 2, D-07745 Jena, Germany.

Virus Research
|December 6, 2011
PubMed

Insights

Coxsackievirus B3 (CVB3) activates nuclear factor kappa B (NFκB) signaling in lymphoid cells, promoting viral replication. Inhibiting this pathway with BAY 11-7085 reduces CVB3 proliferation, suggesting NFκB as an antiviral target.

Area of Science:

  • Virology
  • Immunology
  • Molecular Biology

Background:

  • Viruses like Coxsackievirus B3 (CVB3) exploit host cell pathways for replication.
  • CVB3 causes significant human diseases, including myocarditis and meningitis.
  • Nuclear factor kappa B (NFκB) signaling is implicated in viral infections.

Purpose of the Study:

  • To investigate the role of NFκB signaling activation in CVB3 replication within lymphoid cells.
  • To analyze the effect of inhibiting NFκB signaling on CVB3 viral load.

Main Methods:

  • Studied p65 phosphorylation, a marker of NFκB activation, during CVB3 infection.
  • Administered BAY 11-7085 to inhibit NFκB signaling in infected lymphoid cells.
  • Quantified viral replication in response to NFκB inhibition.

Main Results:

  • CVB3 infection led to increased p65 translation and phosphorylation.
  • Inhibition of NFκB signaling significantly reduced CVB3 replication.
  • The reduction in viral replication was dose- and time-dependent.

Conclusions:

  • NFκB signaling is activated during CVB3 replication in lymphoid cells and facilitates the process.
  • Targeting NFκB signaling pathways presents a potential strategy for developing new antiviral therapies against CVB3.

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