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ILC3 Function as a Double-Edged Sword in EV71 Infection.

Chang Zhang1,2, Linlin Bao1,2, Feifei Qi1,2

  • 1Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences, Beijing 100021, China.

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Summary
This summary is machine-generated.

Group 3 Innate Lymphoid Cells (ILC3s) play a dual role in Enterovirus 71 (EV71) infection, impacting disease severity. Understanding these immune responses offers new avenues for treating severe EV71-induced hand, foot, and mouth disease.

Keywords:
EV71HFMDIL-17IL-22ILC3

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Area of Science:

  • Immunology
  • Virology
  • Infectious Diseases

Background:

  • Enterovirus 71 (EV71) causes hand, foot, and mouth disease (HFMD), with severe neurological complications and mortality.
  • Mechanisms of severe EV71 pathogenesis and effective treatments remain elusive.

Purpose of the Study:

  • To investigate immune responses to EV71 infection across different ages.
  • To identify key immune players and pathogenic targets in EV71-induced disease.

Main Methods:

  • Infection of mice with a mouse-adapted EV71 strain.
  • Comparative analysis of immune responses in infected versus uninfected mice.
  • Intervention studies using cytokine injections and neutralizing antibodies targeting ILC3s.

Main Results:

  • Group 3 Innate Lymphoid Cells (ILC3s) inversely correlated with EV71 disease severity.
  • IL-17 from ILC3s showed mild protection, while IL-22 exacerbated inflammation.
  • ILC3s exhibit a dual role in EV71 pathogenesis.

Conclusions:

  • ILC3s are critical immune regulators in EV71 infection.
  • Findings provide insights into EV71 disease mechanisms and potential therapeutic targets.
  • This research may aid in early diagnosis and treatment strategies for severe EV71 infections.