PMID- 19548361 OWN - NLM STAT- MEDLINE DCOM- 20090721 LR - 20211020 IS - 0893-228X (Print) IS - 1520-5010 (Electronic) IS - 0893-228X (Linking) VI - 21 IP - 12 DP - 2008 Dec TI - Effects of acrolein on leukotriene biosynthesis in human neutrophils. PG - 2424-32 AB - Acrolein is a toxic, highly reactive alpha,beta-unsaturated aldehyde that is present in high concentrations in cigarette smoke. In the current study, the effect of acrolein on eicosanoid synthesis in stimulated human neutrophils was examined. Eicosanoid synthesis in neutrophils was initiated by priming with granulocyte-macrophage colony-stimulating factor (GM-CSF) and subsequent stimulation with formyl-methionyl-leucyl-phenylalanine (fMLP) and 5-lipoxygenase (5-LO) products in addition to small amounts of cyclooxygenase (COX) products were detected using LC/MS/MS. A dose-dependent decrease in the formation of 5-LO products was observed in GM-CSF/fMLP-stimulated neutrophils when acrolein (0-50 microM) was present with almost complete inhibition at > or = 25 microM acrolein. The production of COX products was not affected by acrolein in these cells. The effect of acrolein was examined on key parts of the eicosanoid pathway, such as arachidonic acid release, intracellular calcium ion concentration, and adenosine production. In addition, the direct effect of acrolein on 5-LO enzymatic activity was probed using a recombinant enzyme. Some of these factors were affected by acrolein but did not completely explain the almost complete inhibition of 5-LO product formation in GM-CSF/fMLP-treated cells with acrolein. In addition, the effect of acrolein on different stimuli that initiate the 5-LO pathway [platelet-activating factor (PAF)/fMLP, GM-CSF/PAF, opsonized zymosan, and A23187] was examined. Acrolein had no significant effect on the leukotriene production in neutrophils stimulated with PAF/fMLP, GM-CSF/ PAF, or OPZ. Additionally, 50% inhibition of the 5-LO pathway was observed in A23187-stimulated neutrophils. Our results suggest that acrolein has a profound effect on the 5-LO pathway in neutrophils, which may have implications in disease states, such as chronic obstructive pulmonary disease and other pulmonary disease, where both activated neutrophils and acrolein are present. FAU - Berry, Karin A Zemski AU - Berry KA AD - Department of Pharmacology, MSC 8303, University of Colorado Denver, RC1 South, L18-6120, 12801 East 17th Avenue, P.O. Box 6511, Aurora, Colorado 80045, USA. FAU - Henson, Peter M AU - Henson PM FAU - Murphy, Robert C AU - Murphy RC LA - eng GR - P01 HL034303/HL/NHLBI NIH HHS/United States GR - P01 HL034303-240004/HL/NHLBI NIH HHS/United States GR - HL034303/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Chem Res Toxicol JT - Chemical research in toxicology JID - 8807448 RN - 0 (Air Pollutants) RN - 0 (Leukotrienes) RN - 0 (Lipoxygenase Inhibitors) RN - 0 (Platelet Activating Factor) RN - 37H9VM9WZL (Calcimycin) RN - 59880-97-6 (N-Formylmethionine Leucyl-Phenylalanine) RN - 7864XYD3JJ (Acrolein) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) RN - EC 1.13.11.34 (Arachidonate 5-Lipoxygenase) RN - EC 1.14.99.1 (Prostaglandin-Endoperoxide Synthases) SB - IM MH - Acrolein/*toxicity MH - Air Pollutants/*toxicity MH - Arachidonate 5-Lipoxygenase/metabolism MH - Calcimycin/pharmacology MH - Dose-Response Relationship, Drug MH - Drug Interactions MH - Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology MH - Humans MH - Leukotrienes/*biosynthesis MH - Lipoxygenase Inhibitors MH - N-Formylmethionine Leucyl-Phenylalanine/pharmacology MH - Neutrophils/*drug effects/metabolism MH - Platelet Activating Factor/pharmacology MH - Prostaglandin-Endoperoxide Synthases/metabolism PMC - PMC2772067 MID - NIHMS86489 EDAT- 2009/06/24 09:00 MHDA- 2009/07/22 09:00 PMCR- 2009/12/01 CRDT- 2009/06/24 09:00 PHST- 2009/06/24 09:00 [entrez] PHST- 2009/06/24 09:00 [pubmed] PHST- 2009/07/22 09:00 [medline] PHST- 2009/12/01 00:00 [pmc-release] AID - 10.1021/tx800333u [doi] PST - ppublish SO - Chem Res Toxicol. 2008 Dec;21(12):2424-32. doi: 10.1021/tx800333u.