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Int J Biol Sci. 2014 May 1;10(5):520-9. doi: 10.7150/ijbs.8879. eCollection 2014.

Macrophage polarization in inflammatory diseases.

Author information

1
1. Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin 300052, P.R.China;
2
2. Burns Institute, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P.R.China;
3
2. Burns Institute, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P.R.China; ; 3. State Key Laboratory of Kidney Disease, the Chinese PLA General Hospital, Beijing 100853, P.R.China.

Abstract

Diversity and plasticity are two hallmarks of macrophages. M1 macrophages (classically activated macrophages) are pro-inflammatory and have a central role in host defense against infection, while M2 macrophages (alternatively activated macrophages) are associated with responses to anti-inflammatory reactions and tissue remodeling, and they represent two terminals of the full spectrum of macrophage activation. Transformation of different phenotypes of macrophages regulates the initiation, development, and cessation of inflammatory diseases. Here we reviewed the characters and functions of macrophage polarization in infection, atherosclerosis, obesity, tumor, asthma, and sepsis, and proposed that targeting macrophage polarization and skewing their phenotype to adapt to the microenvironment might hold great promise for the treatment of inflammatory diseases.

KEYWORDS:

alternatively activated macrophage; immune regulation.; inflammatory diseases; macrophage polarization; signal pathways

PMID:
24910531
PMCID:
PMC4046879
DOI:
10.7150/ijbs.8879
[Indexed for MEDLINE]
Free PMC Article

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