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Updated: Jun 7, 2026
10:34
Essential Metal Uptake in Gram-negative Bacteria: X-ray Fluorescence, Radioisotopes, and Cell Fractionation
Published on: February 1, 2018
The struggle for iron - a metal at the host-pathogen interface.
Manfred Nairz1, Andrea Schroll, Thomas Sonnweber
1Department of Internal Medicine I, Clinical Immunology and Infectious Diseases, Medical University of Innsbruck, Austria.
Cellular Microbiology
|October 23, 2010
Summary
Host and pathogen cells require iron for survival, leading to a critical battle for this essential metal. Immune responses regulate iron, while microbes develop strategies to acquire it for proliferation and virulence.
Area of Science:
- * Immunology
- * Microbiology
- * Host-Pathogen Interactions
Background:
- * Iron is essential for both mammalian and microbial cells, playing a role in numerous metabolic processes.
- * Complex interactions exist between iron homeostasis and immune system function.
- * Both host immunity and microbial virulence are significantly influenced by iron availability.
Purpose of the Study:
- * To review the intricate relationship between iron metabolism and host-pathogen interactions.
- * To highlight the immune system's role in controlling iron availability.
- * To explore microbial strategies for iron acquisition during infection.
Main Methods:
- * Literature review and synthesis of existing research on iron's role in host-pathogen dynamics.
- * Analysis of immune-regulatory mechanisms involving iron.
- * Examination of microbial iron acquisition strategies.
Main Results:
- * Iron influences immune cell functions, including cytokine secretion and transcription factor activity.
- * Host immune responses actively restrict iron availability to pathogens.
- * Pathogens have evolved sophisticated mechanisms to secure iron for growth and virulence.
Conclusions:
- * The competition for iron is a critical factor determining the outcome of infectious diseases.
- * Understanding iron's dual role in immunity and infection is crucial for developing new therapeutic strategies.
- * Iron homeostasis is a key battleground in the host-pathogen interplay.
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