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Title

Rhythmic modulation of the hematopoietic niche through neutrophil clearance

AuthorsGonzález, Noelia A.; Castrillo, Antonio ; Hidalgo, Andrés
Issue Date2013
PublisherElsevier
CitationCell 153(5): 1025-1035 (2013)
AbstractUnique among leukocytes, neutrophils follow daily cycles of release from and migration back into the bone marrow, where they are eliminated. Because removal of dying cells generates homeostatic signals, we explored whether neutrophil elimination triggers circadian events in the steady state. Here, we report that the homeostatic clearance of neutrophils provides cues that modulate the physiology of the bone marrow. We identify a population of CD62L LO CXCR4HI neutrophils that have >aged> in the circulation and are eliminated at the end of the resting period in mice. Aged neutrophils infiltrate the bone marrow and promote reductions in the size and function of the hematopoietic niche. Modulation of the niche depends on macrophages and activation of cholesterol-sensing nuclear receptors and is essential for the rhythmic egress of hematopoietic progenitors into the circulation. Our results unveil a process that synchronizes immune and hematopoietic rhythms and expand the ascribed functions of neutrophils beyond inflammation. PaperFlick © 2013 Elsevier Inc.
DescriptionPMCID: PMC4128329.-- et al.
Publisher version (URL)http://dx.doi.org/10.1016/j.cell.2013.04.040
URIhttp://hdl.handle.net/10261/124075
DOI10.1016/j.cell.2013.04.040
Identifiersdoi: 10.1016/j.cell.2013.04.040
issn: 0092-8674
e-issn: 1097-4172
Appears in Collections:(IIBM) Artículos
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