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Human alveolar macrophages predominately express combined classical M1 and M2 surface markers in steady state
- Source :
- Respiratory Research, Vol 19, Iss 1, Pp 1-4 (2018)
- Publication Year :
- 2018
- Publisher :
- BMC, 2018.
-
Abstract
- Abstract Alveolar macrophages (AM) are critical to the homeostasis of the inflammatory environment in the lung. Differential expression of surface markers classifies macrophages to either classically (M1) or alternatively activated (M2). We investigated the phenotype of human alveolar macrophages (AM) in adults living in two different geographical locations: UK and Malawi. We show that the majority of AM express high levels of M1 and M2 markers simultaneously, with the M1/M2 phenotype being stable in individuals from different geographical locations. The combined M1/M2 features confer to AM a hybrid phenotype, which does not fit the classic macrophage classification. This hybrid phenotype may confer to alveolar macrophages an ability to quickly switch between M1 or M2 associated functions allowing for appropriate responses to stimuli and tissue environment.
- Subjects :
- Diseases of the respiratory system
RC705-779
Subjects
Details
- Language :
- English
- ISSN :
- 1465993X
- Volume :
- 19
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Respiratory Research
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8bd8628108f5481c93da55b15ec7af9c
- Document Type :
- article
- Full Text :
- https://doi.org/10.1186/s12931-018-0777-0