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Electrophoretic Mobility Shift Assay EMSA for the Study of RNA-Protein Interactions: The IRE/IRP Example
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Iron in immune cell function and host defense.

David Haschka1, Alexander Hoffmann2, Günter Weiss2

  • 1Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria.

Seminars in Cell & Developmental Biology
|January 2, 2021
PubMed
Summary
This summary is machine-generated.

Iron restriction, known as nutritional immunity, is a key host defense against pathogens. This review explores how controlling iron availability impacts infection, immunity, and cellular processes like ferritinophagy and ferroptosis.

Keywords:
CalprotectinFerritinFerritinophagyFerroportinFerroptosisHFEIRPIronLactoferrinLcn2NONRAMP1Nutritional immunity, Anemia, infection, Heme metabolism

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Area of Science:

  • Immunology
  • Microbiology
  • Cell Biology

Background:

  • Iron is essential for both host and pathogen survival and function.
  • Iron metabolism is intricately linked with immune responses and inflammation.
  • Pathogens require iron for growth and virulence, making iron acquisition a critical factor in infection.

Purpose of the Study:

  • To review the concept of nutritional immunity as a host defense mechanism.
  • To discuss the role of iron in host-pathogen interactions and immune cell function.
  • To explore novel iron-related cellular processes, such as ferritinophagy and ferroptosis, in infection and inflammation.

Main Methods:

  • Literature review focusing on iron metabolism, nutritional immunity, and host-pathogen interactions.
  • Discussion of key proteins involved in iron regulation and immune responses.
  • Analysis of recent findings on ferritinophagy and ferroptosis in the context of inflammation and infection.

Main Results:

  • Iron restriction is a critical component of innate immunity, termed nutritional immunity.
  • Iron availability significantly influences the efficacy of both innate and adaptive immune responses.
  • Ferritinophagy and ferroptosis are emerging cellular mechanisms impacting inflammation and infection control.

Conclusions:

  • Nutritional immunity, by controlling iron availability, represents a vital host defense strategy.
  • Understanding the complex interplay between iron, immunity, and pathogens is crucial for developing new therapeutic approaches.
  • Emerging cellular processes like ferritinophagy and ferroptosis offer new insights into host-pathogen dynamics and inflammation control.