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Updated: May 18, 2026
06:15
Quantification of Efferocytosis by Single-cell Fluorescence Microscopy
Published on: August 18, 2018
"With a little help from my friends": efferocytosis as an antimicrobial mechanism
1Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA. vbriken@umd.edu
Cell Host & Microbe
|September 18, 2012
Abstract:
The uptake of apoptotic cells by phagocytes is defined as efferocytosis. In this issue of Cell Host & Microbe, Martin et al. (2012) and Yang et al. (2012) report that macrophage- and neutrophil-mediated efferocytosis of apoptotic cells containing mycobacteria is an innate antibacterial effector mechanism.
Insights
Efferocytosis, the engulfment of apoptotic cells by phagocytes, serves as an innate immune defense. Macrophages and neutrophils use this process to eliminate mycobacteria-infected cells, highlighting its antibacterial role.
Area of Science:
- Immunology
- Microbiology
- Cell Biology
Background:
- Efferocytosis is the process by which phagocytes engulf and clear apoptotic cells.
- Mycobacteria are intracellular pathogens that can evade host immune responses.
Discussion:
- Martin et al. (2012) and Yang et al. (2012) demonstrate that efferocytosis by macrophages and neutrophils is crucial for eliminating mycobacteria-infected apoptotic cells.
- This process acts as an innate antibacterial effector mechanism, contributing to host defense against mycobacterial infections.
Key Insights:
- Macrophage- and neutrophil-mediated efferocytosis directly targets and clears apoptotic cells harboring mycobacteria.
- Efferocytosis functions as a critical component of the innate immune system's antibacterial strategy against mycobacteria.
Outlook:
- Further research can explore the specific molecular mechanisms underlying efferocytosis of mycobacteria-laden apoptotic cells.
- Understanding this process may lead to novel therapeutic strategies for mycobacterial diseases like tuberculosis.
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