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Editors’ notes Tracking lung macrophages with lipophilic fluorescent dyes
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Editors’ notes Tracking lung macrophages with lipophilic fluorescent dyes

by Leigh MacMillan, Vanderbilt University Credit: CC0 Public Domain Pulmonary macrophages are a heterogeneous population of immune cells that patrol the lungs, ingesting particulates and microbes, and activating inflammation when necessary. During homeostasis, two main subsets of macrophages coexist: resident alveolar macrophages (AMs) and bone marrow (BM)-derived macrophages. Identifying and characterizing these subsets during lung inflammation...