PMID- 2838424 OWN - NLM STAT- MEDLINE DCOM- 19880801 LR - 20210526 IS - 0019-9567 (Print) IS - 1098-5522 (Electronic) IS - 0019-9567 (Linking) VI - 56 IP - 7 DP - 1988 Jul TI - Inhibition of the inflammatory action of interleukin-1 and tumor necrosis factor (alpha) on neutrophil function by pentoxifylline. PG - 1722-9 AB - Inflammatory cytokines, including interleukin-1 and tumor necrosis factor, are produced by monocytes and macrophages in response to microorganisms and microbial products such as endotoxins. The cytokines stimulate neutrophil adherence, degranulation, and superoxide production but inhibit neutrophil migration. We studied the modulation of cytokine-induced neutrophil activation by pentoxifylline and its principle metabolites. Lipopolysaccharide-stimulated mononuclear-leukocyte-conditioned medium containing inflammatory cytokines, purified human interleukin-1, or recombinant human tumor necrosis factor increased neutrophil adherence to nylon fiber, primed neutrophils for increased superoxide production in response to N-formyl-L-methionyl-L-leucyl-L-phenylalanine (FMLP), increased neutrophil lysozyme release stimulated by FMLP, and decreased directed migration of neutrophils to FMLP. Pentoxifylline and its principle metabolites at or near therapeutically achievable levels were able to counteract these effects. Pentoxifylline inhibited the increase in free intracellular calcium in polymorphonuclear leukocytes stimulated by FMLP and increased binding of FMLP to neutrophils at 37 degrees C but not at 4 degrees C. By blocking the inflammatory action of interleukin-1 and tumor necrosis factor on neutrophils, pentoxifylline may diminish the tissue damage caused by neutrophils in such conditions as septic shock, adult respiratory distress syndrome, cardiopulmonary bypass lung damage, and myocardial reperfusion injury. FAU - Sullivan, G W AU - Sullivan GW AD - Department of Internal Medicine, University of Virginia Medical Center, Charlottesville 22908. FAU - Carper, H T AU - Carper HT FAU - Novick, W J Jr AU - Novick WJ Jr FAU - Mandell, G L AU - Mandell GL LA - eng GR - AI09504-17/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Infect Immun JT - Infection and immunity JID - 0246127 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Culture Media) RN - 0 (Free Radicals) RN - 0 (Interleukin-1) RN - 0 (Lipopolysaccharides) RN - 0 (Receptors, Formyl Peptide) RN - 0 (Receptors, Immunologic) RN - 0 (Recombinant Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 11062-77-4 (Superoxides) RN - 59880-97-6 (N-Formylmethionine Leucyl-Phenylalanine) RN - OBD445WZ5P (Theobromine) RN - SD6QCT3TSU (Pentoxifylline) RN - SY7Q814VUP (Calcium) SB - IM MH - Anti-Inflammatory Agents/*pharmacology MH - Calcium MH - Cell Adhesion/drug effects MH - Cell Movement/drug effects MH - Culture Media/pharmacology MH - Cytoplasmic Granules/enzymology MH - Cytosol/metabolism MH - Free Radicals MH - Humans MH - Interleukin-1/*antagonists & inhibitors/pharmacology MH - Leukocytes, Mononuclear/physiology MH - Lipopolysaccharides/pharmacology MH - N-Formylmethionine Leucyl-Phenylalanine/metabolism MH - Neutrophils/*drug effects/metabolism/physiology MH - Pentoxifylline/*pharmacology MH - Receptors, Formyl Peptide MH - Receptors, Immunologic/drug effects MH - Recombinant Proteins/antagonists & inhibitors/pharmacology MH - Superoxides/biosynthesis MH - Theobromine/*analogs & derivatives MH - Tumor Necrosis Factor-alpha/*antagonists & inhibitors/pharmacology PMC - PMC259468 EDAT- 1988/07/01 00:00 MHDA- 2001/03/28 10:01 PMCR- 1988/07/01 CRDT- 1988/07/01 00:00 PHST- 1988/07/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1988/07/01 00:00 [entrez] PHST- 1988/07/01 00:00 [pmc-release] AID - 10.1128/iai.56.7.1722-1729.1988 [doi] PST - ppublish SO - Infect Immun. 1988 Jul;56(7):1722-9. doi: 10.1128/iai.56.7.1722-1729.1988.