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Differentiation of Functional Osteoclasts from Human Peripheral Blood CD14+ Monocytes
Published on: January 27, 2023
Developmental and Functional Heterogeneity of Monocytes
Martin Guilliams1, Alexander Mildner2, Simon Yona3
1Laboratory of Myeloid Cell Ontogeny and Functional Specialization, VIB-UGent Center for Inflammation Research, Technologiepark 927, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Recent advances reveal monocyte heterogeneity, with distinct subsets and developmental paths. These insights redefine monocyte roles in health, inflammation, and tissue repair, highlighting new research perspectives.
Area of Science:
- Immunology
- Hematology
- Cell Biology
Background:
- Monocyte development and function have been redefined by novel experimental approaches.
- Monocytes are now understood to comprise multiple subsets with distinct developmental origins and specialized functions.
Purpose of the Study:
- To outline emerging concepts in monocyte heterogeneity, emergency monopoiesis, and trained immunity.
- To discuss new perspectives these concepts bring to monocyte research.
Main Methods:
- Fate-mapping techniques.
- Single-cell analysis.
Main Results:
- Monocytes exhibit heterogeneity with diverse functional specializations.
- Under homeostatic conditions, monocytes accumulate in peripheral reservoirs or engraft into resident macrophage pools.
- During inflammation, recruited monocytes display distinct effector and regulatory functions, differing from resident macrophages and dendritic cells.
Conclusions:
- Emerging concepts like monocyte heterogeneity, emergency monopoiesis, and trained immunity offer new perspectives in monocyte research.
- Understanding monocyte subsets and their dynamic roles is crucial for comprehending immune responses and tissue homeostasis.
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