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Updated: Feb 2, 2026
In Vivo Assessment of Alveolar Macrophage Efferocytosis Following Ozone Exposure
Published on: October 22, 2019
Targeting Macrophage Efferocytosis to Treat Chronic Inflammation in Cancer and Inflammaging
Xin Huang1,2, Baicheng Qu1, Maike Chen1
1Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
Abstract:
Efferocytosis, the process by which phagocytes clear apoptotic cells, is fundamental for maintaining physiological homeostasis. Inflammaging as a chronic and low-grade inflammatory state characteristic of aging is recognized as a significant contributor to tumor development. As crucial innate immune cells found in various tissues, macrophages are closely involved in both inflammaging and tumor. Accumulating evidence indicates that macrophage-mediated efferocytosis is closely linked to these processes, and its disruption can initiate or accelerate disease. Therefore, it is essential to elucidate the pivotal functions of macrophage efferocytosis in inflammaging and tumor biology to develop potential therapeutic strategies. Herein, this study first aims to uncover the crosstalk between inflammaging and tumor. We then investigate the mechanisms of macrophage efferocytosis, outlining its distinct functional phases and associated metabolic adaptations. The effects of efferocytosis on macrophage functions are also discussed. Furthermore, this study summarizes the prospective therapies treating inflammaging and tumor by modulating macrophage efferocytosis. Collectively, targeting macrophage efferocytosis represents a promising strategy for treating chronic inflammation-associated diseases, including tumor and inflammaging.
Insights
Efferocytosis, the clearance of dead cells by macrophages, is vital for health. Dysfunctional efferocytosis contributes to aging-related inflammation and cancer, highlighting its therapeutic potential.
Area of Science:
- Immunology
- Cell Biology
- Oncology
Background:
- Efferocytosis is crucial for maintaining tissue homeostasis by clearing apoptotic cells.
- Inflammaging, a chronic inflammatory state in aging, promotes tumor development.
- Macrophages play key roles in both inflammaging and cancer biology.
Purpose of the Study:
- To elucidate the role of macrophage efferocytosis in inflammaging and tumor biology.
- To investigate the mechanisms and functional phases of macrophage efferocytosis.
- To explore therapeutic strategies targeting macrophage efferocytosis for treating inflammaging and cancer.
Main Methods:
- Review of existing literature on efferocytosis, inflammaging, and tumor biology.
- Analysis of macrophage efferocytosis mechanisms, functional phases, and metabolic adaptations.
- Summary of current and prospective therapeutic approaches modulating macrophage efferocytosis.
Main Results:
- Efferocytosis is intricately linked to inflammaging and tumor progression.
- Disruption of efferocytosis can initiate or accelerate disease.
- Macrophage efferocytosis exhibits distinct functional phases with specific metabolic requirements.
Conclusions:
- Targeting macrophage efferocytosis offers a promising therapeutic strategy for inflammaging and cancer.
- Understanding efferocytosis mechanisms is key to developing novel treatments for chronic inflammatory diseases.
- Modulating macrophage efferocytosis could restore immune homeostasis and combat age-related diseases.
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