TH17 cytokines induce human airway smooth muscle cell migration. 2011

Ying Chang, and Laila Al-Alwan, and Paul-André Risse, and Lucie Roussel, and Simon Rousseau, and Andrew J Halayko, and James G Martin, and Qutayba Hamid, and David H Eidelman
Meakins-Christie Laboratories and Respiratory Division, Department of Medicine McGill University, Montreal, Quebec, Canada.

BACKGROUND Migration of airway smooth muscle cells (ASMCs) might contribute to increased airway smooth muscle mass in asthma. T(H)17 cells and T(H)17-associated cytokines are involved in the pathogenesis of asthma and might also contribute to airway remodeling. OBJECTIVE We sought to explore the possibility that migration of ASMCs might contribute to airway remodeling through the action of T(H)17-related cytokines. METHODS The effect of exogenous T(H)17 cytokines on ex vivo human ASMC migration was investigated by using a chemotaxis assay. The involvement of signaling pathways, including p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase 1/2 MAPK, nuclear factor κB, and phosphoinositide 3-kinase, was also examined. RESULTS We demonstrated that IL-17A, IL-17F, and IL-22 promote migration in a dose-dependent manner. We further demonstrated that ASMCs express receptors for IL-17RA, IL-17RC, and IL-22R1. Using mAbs directed against these receptors, we confirmed that T(H)17-associated cytokine-induced migration was dependent on selective receptor activation. Moreover, IL-17A and IL-17F exert their effects through signaling pathways that are distinct from those used by IL-22. The p38 MAPK inhibitor BIRB0796 inhibited the migration induced by IL-17A and IL-17F. PS1145, an inhibitor of nuclear factor κB, abolished the IL-22-induced migration. CONCLUSIONS These data raise the possibility that T(H)17-associated cytokines promote human ASMC migration in vivo and suggest an important new mechanism for the promotion of airway remodeling in asthma.

UI MeSH Term Description Entries
D002465 Cell Movement The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell. Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D002469 Cell Separation Techniques for separating distinct populations of cells. Cell Isolation,Cell Segregation,Isolation, Cell,Cell Isolations,Cell Segregations,Cell Separations,Isolations, Cell,Segregation, Cell,Segregations, Cell,Separation, Cell,Separations, Cell
D005434 Flow Cytometry Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake. Cytofluorometry, Flow,Cytometry, Flow,Flow Microfluorimetry,Fluorescence-Activated Cell Sorting,Microfluorometry, Flow,Cell Sorting, Fluorescence-Activated,Cell Sortings, Fluorescence-Activated,Cytofluorometries, Flow,Cytometries, Flow,Flow Cytofluorometries,Flow Cytofluorometry,Flow Cytometries,Flow Microfluorometries,Flow Microfluorometry,Fluorescence Activated Cell Sorting,Fluorescence-Activated Cell Sortings,Microfluorimetry, Flow,Microfluorometries, Flow,Sorting, Fluorescence-Activated Cell,Sortings, Fluorescence-Activated Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001249 Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). Asthma, Bronchial,Bronchial Asthma,Asthmas
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D016207 Cytokines Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner. Cytokine
D056151 Airway Remodeling The structural changes in the number, mass, size and/or composition of the airway tissues. Airway Remodelling,Asthmatic Airway Remodeling,Asthmatic Airway Remodelling,Asthmatic Airway Wall Remodeling,Asthmatic Airway Wall Remodelling,Small Airway Remodeling,Small Airway Remodelling,Airway Wall Remodelling,Airway Remodeling, Asthmatic,Airway Remodeling, Small,Airway Remodelings,Airway Remodelings, Asthmatic,Airway Remodelings, Small,Airway Remodelling, Asthmatic,Airway Remodelling, Small,Airway Remodellings,Airway Remodellings, Asthmatic,Airway Remodellings, Small,Airway Wall Remodellings,Asthmatic Airway Remodelings,Asthmatic Airway Remodellings,Remodeling, Airway,Remodeling, Asthmatic Airway,Remodeling, Small Airway,Remodelings, Airway,Remodelings, Asthmatic Airway,Remodelings, Small Airway,Remodelling, Airway,Remodelling, Airway Wall,Remodelling, Asthmatic Airway,Remodelling, Small Airway,Remodellings, Airway,Remodellings, Airway Wall,Remodellings, Asthmatic Airway,Remodellings, Small Airway,Small Airway Remodelings,Small Airway Remodellings,Wall Remodelling, Airway,Wall Remodellings, Airway
D058504 Th17 Cells A subset of helper-effector T-lymphocytes which synthesize and secrete INTERLEUKINS IL-17; IL-17F; and IL-22. These cytokines are involved in host defenses and tissue inflammation in autoimmune diseases. T Helper 17 Cell,TH-17 Cell,Th17 Cell,Type 17 Helper T Cell,T Helper 17 Cells,TH-17 Cells,Type 17 Helper T Cells,Cell, TH-17,Cell, Th17,Cells, TH-17,Cells, Th17,TH 17 Cell,TH 17 Cells
D032389 Myocytes, Smooth Muscle Non-striated, elongated, spindle-shaped cells found lining the digestive tract, uterus, and blood vessels. They are derived from specialized myoblasts (MYOBLASTS, SMOOTH MUSCLE). Smooth Muscle Cells,Cell, Smooth Muscle,Cells, Smooth Muscle,Myocyte, Smooth Muscle,Smooth Muscle Cell,Smooth Muscle Myocyte,Smooth Muscle Myocytes

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