期刊
CELL REPORTS
卷 25, 期 9, 页码 2552-+出版社
CELL PRESS
DOI: 10.1016/j.celrep.2018.10.102
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资金
- National Institute of Mental Health (NIMH) [R01-MH-093473, R01-MH097243]
- National Institute on Aging [R01-AG033028, R01-AG043404]
- National Institute of Dental and Craniofacial Research (NIDCR) Training Grant [T32-DE-014320]
- NIMH [F31-MH109234]
- NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH [T32DE014320] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF MENTAL HEALTH [F31MH109234, R01MH093473, R01MH097243] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [R01AG043404] Funding Source: NIH RePORTER
Psychosocial stress accelerates myelopoietic production of monocytes and neutrophils that contributes to a variety of health complications ranging from atherosclerosis to anxiety. Here, we show that social stress in mice mobilizes hematopoietic stem progenitor cells (HSPCs) from the bone marrow that enter circulation, engraft into the spleen, and establish a persistent extramedullary hematopoietic depot. These splenic progenitors actively proliferate and differentiate into multiple cell types, including monocytes, neutrophils, and erythrocytes. Splenic erythropoiesis partially abrogates stress-induced anemia. Repeated injection with isoprenaline induces progenitor mobilization to the spleen, identifying a key role for beta-adrenergic signaling. Moreover, protracted splenic production of CD11b(+) cells persists for at least 24 days after the cessation of social stress. Thus, chronic stress establishes a persistent extramedullary hematopoietic depot that can modify a wide range of chronic disease processes and alter homeostasis of the bi-directional regulatory axis between the nervous and immune systems.
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