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A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
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Dengue virus-specific suppressor T cells: current perspectives.

Umesh C Chaturvedi1, Richa Shrivastava, Raj K Tripathi

  • 1Department of Microbiology, K.G. Medical University, Lucknow, India. ucc05@rediffmail.com

FEMS Immunology and Medical Microbiology
|June 19, 2007
PubMed
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Dengue virus induces antigen-specific suppressor T (TS) cells, a pathway potentially protecting against severe disease by inhibiting enhancing antibodies. Modern research continues to explore TS cells

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Area of Science:

  • Immunology
  • Virology
  • T cell regulation

Background:

  • Dengue virus was the first microorganism identified to induce antigen-specific suppressor T (TS) cells in mice.
  • A cascade of three TS cell generations (TS1, TS2, TS3) and their suppressor factors (SF1, SF2) was previously delineated.
  • The 'cytokine tsunami' is a leading hypothesis for severe dengue, alongside the TS cell pathway.

Purpose of the Study:

  • To review the role of dengue-specific suppressor T cells in disease protection.
  • To examine the potential involvement of TS cells in inducing severe dengue.
  • To integrate current understanding of suppressor/regulatory T cells with dengue pathogenesis.

Main Methods:

  • Literature review of studies on suppressor T cells in dengue and other viral infections.
  • Analysis of historical and recent research on TS cell function and regulation.
  • Discussion of modern techniques applied to TS cell research.

Main Results:

  • The TS cell pathway was proposed to protect against severe dengue by inhibiting enhancing antibody production.
  • Suppressor/regulatory T cells have been extensively studied in various diseases, including viral infections, over the last decade.
  • The precise role of dengue-specific TS cells in protection versus disease induction remains an area of active investigation.

Conclusions:

  • Dengue-specific suppressor T cells play a complex role in dengue pathogenesis.
  • Further research is needed to fully elucidate the protective and pathogenic functions of TS cells in dengue.
  • Understanding TS cell dynamics is crucial for developing strategies against severe dengue disease.