PMID- 12842851 OWN - NLM STAT- MEDLINE DCOM- 20040330 LR - 20180815 IS - 1044-1549 (Print) IS - 1044-1549 (Linking) VI - 30 IP - 3 DP - 2004 Mar TI - Activation of extracellular regulated kinases is required for the increase in airway epithelial permeability during leukocyte transmigration. PG - 261-70 AB - The goal of this study was to determine whether the extracellular regulated kinases (ERK1/2) are involved in leukocyte transmigration across airway epithelium and the associated changes in epithelial permeability. In vitro, we used formyl-methionyl-leucyl-phenylalanine (fMLP) to induce migration of HL-60 cells (a human leukocyte cell line) across sheets of polarized Calu-3 airway epithelial cells and also to induce migration of human neutrophils across primary cultures of cow tracheal epithelial cells. In both systems, leukocyte migration decreased transepithelial electrical resistance (R(te)), increased epithelial permeability to albumin (P(alb)), and increased ERK1/2 phosphorylation in epithelial cells. Leukocyte migration and the associated changes in R(te), P(alb), and ERK1/2 phosphorylation were inhibited by calphostin C, a blocker of protein kinase C (PKC), and by PD98059 (a blocker of ERK1/2). Leukocyte transmigration in rat tracheas in vivo was induced with fMLP, and was associated with increased P(alb) and phosphorylation of epithelial ERK1/2. Again, migration and the associated changes were inhibited by luminal PD98059 or calphostin C though neither agent affected rat leukocyte migration in Boyden chambers in vitro. We conclude that PKC and ERK1/2 pathways are activated in airway epithelial cells during migration of leukocytes and are important regulators of airway epithelial permeability. FAU - Serikov, Vladimir B AU - Serikov VB AD - Children's Hospital Oakland Research Institute, California, USA. FAU - Choi, Hyon AU - Choi H FAU - Chmiel, Ken J AU - Chmiel KJ FAU - Wu, Reen AU - Wu R FAU - Widdicombe, Jonathan H AU - Widdicombe JH LA - eng GR - AI50496/AI/NIAID NIH HHS/United States GR - HL60288/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. DEP - 20030703 PL - United States TA - Am J Respir Cell Mol Biol JT - American journal of respiratory cell and molecular biology JID - 8917225 RN - 0 (Enzyme Inhibitors) RN - 0 (Flavonoids) RN - 0 (Naphthalenes) RN - 59880-97-6 (N-Formylmethionine Leucyl-Phenylalanine) RN - EC 2.7.11.13 (Protein Kinase C) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 1) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - I271P23G24 (calphostin C) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) SB - IM MH - Animals MH - Cattle MH - Cell Movement/physiology MH - Enzyme Activation/drug effects MH - Enzyme Inhibitors/pharmacology MH - Flavonoids/pharmacology MH - HL-60 Cells MH - Humans MH - Leukocytes/*physiology MH - Male MH - Mitogen-Activated Protein Kinase 1/antagonists & inhibitors/*metabolism MH - Mitogen-Activated Protein Kinase 3 MH - Mitogen-Activated Protein Kinases/antagonists & inhibitors/*metabolism MH - N-Formylmethionine Leucyl-Phenylalanine/pharmacology MH - Naphthalenes/pharmacology MH - Neutrophils/cytology/metabolism MH - Permeability MH - Phosphorylation MH - Protein Kinase C/antagonists & inhibitors MH - Rats MH - Rats, Sprague-Dawley MH - Respiratory Mucosa/*metabolism MH - Trachea/cytology/metabolism EDAT- 2003/07/05 05:00 MHDA- 2004/03/31 05:00 CRDT- 2003/07/05 05:00 PHST- 2003/07/05 05:00 [pubmed] PHST- 2004/03/31 05:00 [medline] PHST- 2003/07/05 05:00 [entrez] AID - 2003-0053OC [pii] AID - 10.1165/rcmb.2003-0053OC [doi] PST - ppublish SO - Am J Respir Cell Mol Biol. 2004 Mar;30(3):261-70. doi: 10.1165/rcmb.2003-0053OC. Epub 2003 Jul 3.