PMID- 16792687 OWN - NLM STAT- MEDLINE DCOM- 20060807 LR - 20181113 IS - 0009-9104 (Print) IS - 1365-2249 (Electronic) IS - 0009-9104 (Linking) VI - 145 IP - 1 DP - 2006 Jul TI - Interleukin (IL)-4 and IL-13 up-regulate monocyte chemoattractant protein-1 expression in human bronchial epithelial cells: involvement of p38 mitogen-activated protein kinase, extracellular signal-regulated kinase 1/2 and Janus kinase-2 but not c-Jun NH2-terminal kinase 1/2 signalling pathways. PG - 162-72 AB - The Th2 cytokines interleukin (IL)-4 and IL-13 and chemokine monocyte chemoattractant protein-1 (MCP-1) are significantly involved in bronchial hyperreactivity (BHR) and remodelling in allergic asthma. Although IL-4 and IL-13 can regulate a number of chemokines from bronchial epithelium, their regulatory effect on the expression of MCP-1 is as yet unproved. We aim to investigate the intracellular signalling mechanisms of IL-4 and IL-13 regulating the expression and secretion of MCP-1 from human bronchial epithelial cells. BEAS-2B cells, derived from a human bronchial epithelial cell line, were activated with or without IL-4 and/or IL-13 for different time intervals. MCP-1 gene expression and protein secretion were measured by reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. Activation of signalling molecules p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase (ERK), c-Jun NH2-terminal kinase (JNK) and Janus kinase-2 (JAK-2) was accessed by Western blotting. IL-4 and IL-13 were found to up-regulate gene expression and significantly increase the release of MCP-1 from BEAS-2B cells. Both cytokines could activate p38 MAPK, ERK and JAK-2, but not JNK activity. Inhibition of p38 MAPK, ERK and JAK-2 activities by pretreating the cells with their corresponding inhibitors SB203580, PD98059 and AG490, respectively, significantly suppressed IL-4- and IL-13-induced MCP-1 production in BEAS-2B cells. Together, the above results illustrate that the activation of p38 MAPK, ERK and JAK-2 but not JNK is crucial for IL-4- and IL-13-induced MCP-1 release in human bronchial epithelial cells. Our findings may provide insight into the future development of more effective therapeutic agents for treating allergic asthma. FAU - Ip, W K AU - Ip WK AD - Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong. FAU - Wong, C K AU - Wong CK FAU - Lam, C W K AU - Lam CW LA - eng PT - Journal Article PL - England TA - Clin Exp Immunol JT - Clinical and experimental immunology JID - 0057202 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Flavonoids) RN - 0 (Imidazoles) RN - 0 (Interleukin-13) RN - 0 (Interleukins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Pyridines) RN - 0 (Tyrphostins) RN - 0 (alpha-cyano-(3,4-dihydroxy)-N-benzylcinnamide) RN - 207137-56-2 (Interleukin-4) RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - EC 2.7.10.2 (JAK2 protein, human) RN - EC 2.7.10.2 (Janus Kinase 2) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) RN - OU13V1EYWQ (SB 203580) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) SB - IM MH - Blotting, Western MH - Bronchi/*metabolism MH - Cell Line, Transformed MH - Cell Survival/drug effects MH - Chemokine CCL2/*metabolism MH - Dose-Response Relationship, Drug MH - Enzyme Activation MH - Epithelial Cells/*metabolism MH - Flavonoids/pharmacology MH - Gene Expression/drug effects MH - Humans MH - Imidazoles/pharmacology MH - Interleukin-13/metabolism MH - Interleukin-4/metabolism MH - Interleukins/*metabolism MH - JNK Mitogen-Activated Protein Kinases/antagonists & inhibitors/metabolism MH - Janus Kinase 2 MH - *MAP Kinase Signaling System MH - Mitogen-Activated Protein Kinase 3/antagonists & inhibitors/metabolism MH - Protein-Tyrosine Kinases/antagonists & inhibitors/metabolism MH - Proto-Oncogene Proteins/antagonists & inhibitors/metabolism MH - Pyridines/pharmacology MH - Reverse Transcriptase Polymerase Chain Reaction MH - Tyrphostins/pharmacology MH - *Up-Regulation MH - p38 Mitogen-Activated Protein Kinases/antagonists & inhibitors/metabolism PMC - PMC1942012 EDAT- 2006/06/24 09:00 MHDA- 2006/08/08 09:00 PMCR- 2007/07/01 CRDT- 2006/06/24 09:00 PHST- 2006/06/24 09:00 [pubmed] PHST- 2006/08/08 09:00 [medline] PHST- 2006/06/24 09:00 [entrez] PHST- 2007/07/01 00:00 [pmc-release] AID - CEI3085 [pii] AID - 10.1111/j.1365-2249.2006.03085.x [doi] PST - ppublish SO - Clin Exp Immunol. 2006 Jul;145(1):162-72. doi: 10.1111/j.1365-2249.2006.03085.x.