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Updated: Apr 4, 2026

Quantification of Efferocytosis by Single-cell Fluorescence Microscopy
Published on: August 18, 2018
[The role of macrophage efferocytosis in non-infectious inflammatory diseases]
Xingyu Lu1, Yujing Xiong2, Xin Zhao1
1College of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang 712046; Department of Immunology, Basic Medical Science Academy, Air Force Medical University, Xi'an 710032, China.
Abstract:
Macrophages play a critical role in maintaining tissue homeostasis and regulating inflammation through the efficient clearance of apoptotic cells, a process known as efferocytosis. Defective macrophage efferocytosis has been identified as a significant mechanism underlying persistent inflammation and tissue damage in various non-infectious inflammatory diseases (NIID), including atherosclerosis (AS), systemic lupus erythematosus (SLE), and inflammatory bowel disease (IBD), etc. Impaired efferocytosis not only leads to the accumulation of apoptotic cells and secondary necrosis, triggering the release of inflammatory signals, but also disrupts immune tolerance and tissue repair processes. Recent advances in understanding the mechanisms of efferocytosis, encompassing apoptotic cell recognition, receptor regulation, and anti-inflammatory responses, have revealed novel therapeutic opportunities. This review summarizes the mechanistic roles of macrophage efferocytosis in NIID, discusses its potential as both a therapeutic target and a biomarker, and outlines future directions in molecular mechanisms, tissue-specific immunoregulation, and clinical translation.
Insights
Defective macrophage efferocytosis, the clearance of dead cells, drives persistent inflammation in non-infectious inflammatory diseases (NIID). Targeting this process offers new therapeutic avenues for diseases like atherosclerosis and lupus.
Area of Science:
- Immunology
- Cell Biology
- Pathology
Background:
- Macrophages are crucial for tissue homeostasis via efferocytosis (clearance of apoptotic cells).
- Defective efferocytosis by macrophages contributes to inflammation and tissue damage in non-infectious inflammatory diseases (NIID).
- Impaired efferocytosis exacerbates inflammation by causing apoptotic cell accumulation and disrupting immune tolerance.
Purpose of the Study:
- To review the mechanistic roles of macrophage efferocytosis in NIID.
- To explore efferocytosis as a therapeutic target and biomarker.
- To outline future research directions in efferocytosis mechanisms and clinical applications.
Main Methods:
- Literature review of recent advances in efferocytosis mechanisms.
- Analysis of efferocytosis's role in NIID pathogenesis.
- Discussion of therapeutic and biomarker potential.
Main Results:
- Defective efferocytosis is a key mechanism in NIID pathogenesis.
- Understanding efferocytosis offers novel therapeutic strategies.
- Efferocytosis modulation presents opportunities for treating inflammatory diseases.
Conclusions:
- Macrophage efferocytosis is central to NIID.
- Targeting efferocytosis holds promise for therapeutic intervention.
- Further research is needed for clinical translation and understanding tissue-specific regulation.
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