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Pattern recognition receptors and inflammasome: Now and beyond.

SuHyeon Oh1, Young Ki Choi2, SangJoon Lee3

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Pattern recognition receptors (PRRs) detect pathogens and cellular damage, initiating immune responses. Understanding PRR networks, including PANoptosomes, is key for innate immunity and treating inflammatory diseases.

Keywords:
Immune responseInflammasomeInflammatory cell deathInnate immunityPattern recognition receptor

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Area of Science:

  • Immunology
  • Cellular Biology
  • Molecular Medicine

Background:

  • Pattern recognition receptors (PRRs) are crucial for innate immunity, identifying pathogens and cellular damage.
  • PRRs initiate inflammatory responses, cytokine production, and modulate adaptive immunity via ligand binding.
  • PRR networks form multi-PRR inflammasomes (PANoptosomes) for coordinated cell death.

Purpose of the Study:

  • To provide a comprehensive overview of PRR-ligand recognition and signaling pathways.
  • To elucidate the role of PRRs in sensing damage and maintaining homeostasis.
  • To discuss emerging insights into PRR regulation for immunotherapeutic strategies.

Main Methods:

  • Review of existing literature on PRR signaling and inflammasome activation.
  • Analysis of PRR network interactions and their role in innate immunity.
  • Synthesis of current knowledge on PRR-mediated inflammatory responses.

Main Results:

  • PRRs recognize pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs).
  • Ligand binding activates downstream signaling, promoting pathogen clearance and inflammasome assembly.
  • PRR interactions lead to PANoptosome formation for coordinated inflammatory cell death.

Conclusions:

  • A deep understanding of PRR networks is essential for comprehending innate immunity regulation.
  • PRRs play a critical role in sensing cellular damage and preserving homeostasis.
  • Insights into PRR regulation offer potential for novel immunotherapeutic interventions in infectious and inflammatory diseases.