Journal
SHOCK
Volume 56, Issue 1, Pages 30-41Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/SHK.0000000000001699
Keywords
Erythropoiesis; hepcidin; inflammation; myeloid-derived suppressor cells; myelopoiesis
Funding
- National Institutes of Health
- NIH NIGMS [R01 GM113945-01, P50 GM111152-01]
- National Institute on Aging [P30 AG028740]
- NIGMS [P50 GM111152-01]
- [T32 GM-08721]
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This review summarizes the unique and common responses of hematopoietic stem/progenitor cells (HSPC) to hemorrhage, injury, and sepsis, as well as the impact of inflammation on their differentiation and function. Additionally, potential therapeutic options to optimize HSPC function after severe trauma or infection are discussed.
Hematopoietic stem/progenitor cells (HSPC) have both unique and common responses following hemorrhage, injury, and sepsis. HSPCs from different lineages have a distinctive response to these stress signals. Inflammation, via the production of inflammatory factors, including cytokines, hormones, and interferons, has been demonstrated to impact the differentiation and function of HSPCs. In response to injury, hemorrhagic shock, and sepsis, cellular phenotypic changes and altered function occur, demonstrating the rapid response and potential adaptability of bone marrow hematopoietic cells. In this review, we summarize the pathophysiology of emergency myelopoiesis and the role of myeloid-derived suppressor cells, impaired erythropoiesis, as well as the mobilization of HSPCs from the bone marrow. Finally, we discuss potential therapeutic options to optimize HSPC function after severe trauma or infection.
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