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Activation of the Innate Immune Receptors: Guardians of the Micro Galaxy

Activation and Functions of the Innate Immune Receptors
  • Dominic De Nardo
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 1024)

Abstract

The families of innate immune receptors are the frontline responders to danger. These superheroes of the host immune systems populate innate immune cells, surveying the extracellular environment and the intracellular endolysosomal compartments and cytosol for exogenous and endogenous danger signals. As a collective the innate immune receptors recognise a wide array of stimuli, and in response they initiate specific signalling pathways leading to activation of transcriptional or proteolytic pathways and the production of inflammatory molecules to destroy foreign pathogens and/or resolve tissue injury. In this review, I will give an overview of the innate immune system and the activation and effector functions of the families of receptors it comprises. Current key concepts will be described throughout, including innate immune memory, formation of innate immune receptor signalosomes, inflammasome formation and pyroptosis, methods of extrinsic cell communication and examples of receptor cooperation. Finally, several open questions and future directions in the field of innate immunity will be presented and discussed.

Keywords

Innate immunity Innate immune receptors Inflammasomes Myddosome PRRs Innate immune memory TLRs NLRs CLRs RLRs 

Notes

Acknowledgements

I am grateful to C.M. De Nardo for proofreading of the manuscript. I acknowledge the exceptional work by many investigators in the field who were not cited here due to space limitations.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  1. 1.Inflammation DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleAustralia
  2. 2.Department of Medical BiologyThe University of MelbourneParkvilleAustralia

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