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Liquid-liquid phase separation in innate immunity.

Dawei Liu1, Jinhang Yang1, Ileana M Cristea1

  • 1Department of Molecular Biology, Princeton University; Princeton, NJ 08544, USA.

Trends in Immunology
|May 18, 2024
PubMed
Summary
This summary is machine-generated.

Liquid-liquid phase separation (LLPS) is crucial for innate immunity, regulating pathogen defense. This process, controlled by post-translational modifications and targeted by viruses, offers new therapeutic strategies.

Keywords:
DNA sensingLLPSPTMsRNA sensingimmune signalinginnate immunitymembraneless organellesphase separationpost-translational modificationproteomicsviral infection

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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • Innate immunity provides essential defense against pathogens.
  • Liquid-liquid phase separation (LLPS) emerges as a key regulator in cellular defense mechanisms.

Purpose of the Study:

  • To review the multifaceted role of LLPS in mammalian innate immunity.
  • To discuss LLPS regulation by post-translational modifications (PTMs) and viral antagonism.

Main Methods:

  • Literature review of LLPS in innate immune responses.
  • Analysis of LLPS regulation by PTMs.
  • Examination of viral strategies to antagonize LLPS.

Main Results:

  • LLPS is integral to DNA and RNA sensing pathways.
  • LLPS modulates inflammasome activity.
  • Viruses have evolved mechanisms to subvert LLPS for their benefit.

Conclusions:

  • LLPS offers rapid and adaptable control over host immune signaling.
  • LLPS represents a significant regulatory node in innate immunity.
  • LLPS is a promising target for developing novel therapeutic strategies against infections.