PMID: 9429905Jan 16, 1998Paper

Thermal injury induces the development of inflammatory macrophages from nonadherent bone marrow cells

Inflammation
Cora K OgleJ Wesley Alexander

Abstract

The normal course of hematopoiesis is controlled by growth factors and cytokines and, therefore, should be susceptible to alterations induced by systemic mediator release such as that seen following thermal injury. We hypothesized that a brief exposure of developing macrophages to the postthermal injury state would result in functionally altered progeny. We measured the production of inflammatory mediators by rat, bone-marrow macrophage precursors harvested 24 h following a 30% TBSA burn after subsequent maturation in a controlled, in vitro environment. Interleukin (IL)-6, tumor necrosis factor (TNF), and prostaglandin (PG) E2 levels in response to 24 h stimulation with lipopolysaccharide (LPS) were measured following 4 or 8 days of incubation with IL-3, granulocyte-macrophage colony-stimulating factor (GM-CSF), or both. Flow cytometric analysis showed that bone marrow cells harvested from burn and sham animals cultured in GM-CSF developed principally into macrophages (His48+, R21A6A+, CD11b+. Unstimulated cells produced negligent levels of cytokines and PGE2. Stimulated burn-derived cells released greater amounts of IL-6 and TNF at 4 or 8 days of culture depending on the conditions. Elevated PGE2 release was noted in all GM-CS...Continue Reading

Citations

Jan 1, 2003·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Mary F BarbeFayez F Safadi
Sep 13, 2006·The Journal of Trauma·Klaus-D SchaserThomas W Mittlmeier
Dec 29, 2000·The Journal of Trauma·E L Hahn, R L Gamelli
Jul 23, 2003·The Journal of Immunology : Official Journal of the American Association of Immunologists·Hugh M PatersonJames A Lederer
Oct 8, 2020·International Journal of Biometeorology·G D VandanaShane K Maloney
Apr 7, 2021·Burns : Journal of the International Society for Burn Injuries·Yunxi YangBingwei Sun
Mar 26, 2005·Prostaglandins & Other Lipid Mediators·Filippo Renò, Mario Cannas

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