Abstract:
:Lung capillaries, best known for vital gas exchange, also contribute to neutrophil margination, a phenomenon resulting in large numbers of pulmonary vascular neutrophils. Importantly, the functional relevance of neutrophil margination is unknown. Recent advances in microscopy have altered our understanding of why neutrophils marginate. Specifically, data show that lung capillaries provide a unique anatomical site for neutrophils to capture bloodstream pathogens, which contrasts the conventional monophagocytic-dominated vascular host defense of the spleen and liver. Moreover, lung capillaries provide an efficient site for direct cell-cell communication required for the induction of apoptosis in aged neutrophils. These new ideas transform our views of the pulmonary circulation as a site for immediate neutrophil-mediated host defense and regulation of their life cycle.
journal_name
Trends Immunoljournal_title
Trends in immunologyauthors
Granton E,Kim JH,Podstawka J,Yipp BGdoi
10.1016/j.it.2018.09.002subject
Has Abstractpub_date
2018-11-01 00:00:00pages
890-899issue
11eissn
1471-4906issn
1471-4981pii
S1471-4906(18)30167-4journal_volume
39pub_type
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