期刊
IMMUNITY
卷 55, 期 9, 页码 1564-1580出版社
CELL PRESS
DOI: 10.1016/j.immuni.2022.08.010
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资金
- FWO Methusalem grant
- FWO Excellence of Science grant
- European Research Council (ERC) under the European Union [789384]
- FWO-VLAIO Fellowship
- National Institutes of Health [R35 HL155458]
- European Research Council (ERC) [789384] Funding Source: European Research Council (ERC)
This article describes how single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics can be used to separate and study different subpopulations of lung macrophages, as well as their importance and complexity in lung homeostasis and disease. It also discusses how lung macrophages undergo functional changes in different tissue states.
Tissue-resident alveolar and interstitial macrophages and recruited macrophages are critical players in innate immunity and maintenance of lung homeostasis. Until recently, assessing the differential functional contributions of tissue-resident versus recruited macrophages has been challenging because they share overlapping cell surface markers, making it difficult to separate them using conventional methods. This review describes how scRNA-seq and spatial transcriptomics can separate these subpopulations and help unravel the complexity of macrophage biology in homeostasis and disease. First, we provide a guide to identifying and distinguishing lung macrophages from other mononuclear phagocytes in humans and mice. Second, we outline emerging concepts related to the development and function of the various lung macrophages in the alveolar, perivascular, and interstitial niches. Finally, we describe how different tissue states profoundly alter their functions, including acute and chronic lung disease, cancer, and aging.
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