ArticleInflammation2001
Decreased leukotriene release from neutrophils after severe trauma: role of immature cells.
Article in Inflammation, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Longitudinal assessment of the inflammatory response: The next step in personalized medicine after severe trauma.Frontiers in medicine · 2022Review
- Neutrophil kinetics and function after major trauma: A systematic review.World journal of critical care medicine · 2021Article
- Recognizing the mobilization of neutrophils with banded nuclei early after trauma.International journal of laboratory hematology · 2020Article
- Sterile post-traumatic immunosuppression.Clinical & translational immunology · 2016Review
- Deoxyribonuclease is a potential counter regulator of aberrant neutrophil extracellular traps formation after major trauma.Mediators of inflammation · 2012Article
- Polytrauma--pathophysiology and management principles.Langenbeck's archives of surgery · 2008Review
- Leukotriene B4 receptor (BLT-1) modulates neutrophil influx into the peritoneum but not the lung and liver during surgically induced bacterial peritonitis in mice.Clinical and diagnostic laboratory immunology · 2004Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polymorphonuclear granulocytes (PMN) play a key role in host defense against microbial infections. After severe trauma PMN show cellular dysfunctions including chemotactic migration, phagocytosis, and bacterial killing. In these settings the contribution of the cellular maturation stage compared to functional activities has not been investigated. Polymorphonuclear granulocytes are potent producers of lipid mediators via the 5-lipoxygenase (5-LO) pathway (leukotrienes, LTs) which exert important proinflammatory and immunoregulatory activities. We analyzed leukotriene generation from PMN-fractions (N = 23) of 15 polytrauma patients in comparison to 17 healthy donor cell fractions and correlated this lipid mediator release to the hematopoietic maturation stage of respective PMN. Polymorphonuclear granulocytes were isolated from EDTA-anticoagulated peripheral blood employing a one step procedure based on a discontinuous double Ficoll-gradient. Cells (5 x 10(6)/500 microl phosphate-buffered saline) were stimulated for 20 min at 37 degrees C with 1 microM Ca-ionophor A23187 in the presence of 1 mM Ca++ and 0.5 mM Mg++. Leukotrienes were analyzed by reversed-phase HPLC. Expression of 5-lipoxygenase (5-LO) was additionally determined by Western blot. Maturation stage of PMN was quantitated by Pappenheim-staining of cell smears. After polytrauma the generation of leukotrienes from PMN was individually diminished. Synthesis of enzymatically formed metabolites (LTB4, OH-LTB4 and COOH-LTB4) was concomitantly reduced. The decresaed leukotriene synthesis strongly correlated (r2 = 0.907, P < 0.0001) to the occurrence of immature PMN (mostly band cells). The expression of 5-lipoxygenase in PMN fractions consisting mainly of band cells was decreased. Our results provide evidence that posttraumatic granulocyte dysfunction is partly due to immature functional cell capacities.
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Registered trials
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