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Interferon production by cells infected with subacute sclerosing panencephalitis (SSPE) virus or measles virus

Shunji Hasegawa1, Natsumi Mori, Mika Satomi

  • 1Department of Pediatrics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 755-8505, Japan. shunji@yamaguchi-u.ac.jp

Cytokine
|October 5, 2011
PubMed
Abstract

Insights

Subacute sclerosing panencephalitis (SSPE) virus triggers higher interferon (IFN)-α and IFN-λ1 production than measles virus (MV). This suggests distinct immune responses to these related viruses in neurodegenerative diseases.

Area of Science:

  • Virology
  • Immunology
  • Neuroscience

Background:

  • Subacute sclerosing panencephalitis (SSPE) is a rare, progressive neurodegenerative encephalitis.
  • SSPE is caused by specific measles virus (MV) variants, with distinct viral structures observed in patients' brains.
  • The differential interferon (IFN) production between SSPE virus and MV infections is not well understood.

Purpose of the Study:

  • To investigate and compare the IFN production profiles induced by SSPE virus and MV.
  • To elucidate potential differences in the innate immune response to these viral variants.

Main Methods:

  • Quantified concentrations of IFN-α, IFN-β, IFN-γ, and IFN-λ1 (interleukin-29) were measured.
  • B95a cells (marmoset B-lymphoblastoid cell line) were infected with either MV or SSPE virus, alongside mock-infected controls.

Main Results:

  • SSPE virus-infected cells exhibited significantly elevated production of IFN-α and IFN-λ1 compared to MV-infected cells.
  • Mock-infected cells showed minimal IFN production, serving as a baseline.

Conclusions:

  • SSPE virus and MV induce distinct interferon production profiles.
  • These findings suggest differential innate immune activation by SSPE virus and MV, potentially contributing to SSPE pathogenesis.

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