Intracellular pathogens convert macrophages from death traps into hospitable homes
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Updated: Mar 26, 2026

Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans
Published on: December 19, 2014
Julien Barbier1, Jean-Christophe Cintrat2, Daniel Gillet1
1CEA, Section of Molecular Engineering of Proteins (SIMOPRO), Institute of Biology and Biotechnology of Saclay (iBiTec-S), LERMIT LabEx, Paris Saclay University, Gif sur Yvette, France.
Abstract:
Intracellular pathogens - bacteria, parasites and fungi - frequently infect macrophages in addition to other cells. They turn these deadly cells into harmless hosts to multiply and paralyze immunity. Understanding the complex mechanisms underlying this phenomenon may have a strong impact to identify new targets belonging to the pathogens but also to the host, thereby allowing the design of new therapeutic strategies.
Insights
Intracellular pathogens like bacteria, parasites, and fungi infect macrophages, hijacking them to multiply and suppress immune responses. Understanding these mechanisms can reveal new therapeutic targets for both pathogens and hosts.
Area of Science:
- Immunology
- Microbiology
- Cell Biology
Background:
- Intracellular pathogens frequently infect macrophages, key immune cells.
- These pathogens manipulate host cells to evade immune detection and replicate.
- This evasion strategy cripples the host's immune system.
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