Changes in the proteome of human bronchial epithelial cells following stimulation with leucotriene E4 and transforming growth factor-beta1

Respirology : Official Journal of the Asian Pacific Society of Respirology
Siiri AltrajaAlan Altraja

Abstract

Activated bronchial epithelial cells exert considerable potential to maintain a microenvironment in the airway wall that promotes airway inflammation and remodelling. Cysteinyl leucotrienes (CysLT) and transforming growth factor-beta(1) (TGF-beta(1)) are both increased in asthmatic airways and may influence the pathophysiology of disease. However, the consequences of activation of bronchial epithelial cells by these mediators are not fully understood. A proteomic-based approach was used to characterize the inflammatory pathways in bronchial epithelial cells after stimulation with CysLT and TGF-beta(1). Human bronchial epithelial cells (BEAS-2B) were stimulated with 1 ng/mL TGF-beta(1) and 50 nmol/L leucotriene E(4) (LTE(4)) for 48 h and whole-cell lysates were subjected to two-dimensional gel electrophoresis. Proteins showing statistically significant differential expression were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and database searching. Stimulation with LTE(4) increased the expression of three proteins and five proteins showed decreased expression. Of the latter group, two were definitively identified as heat shock protein (Hsp90 alpha) and stress-70 protein. Hsp90 alpha ...Continue Reading

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Citations

Mar 5, 2010·Respirology : Official Journal of the Asian Pacific Society of Respirology·Helen K ReddelIan A Yang
Apr 20, 2011·Expert Review of Proteomics·Choon-Sik Park, Taiyoun Rhim
Jul 3, 2009·Current Opinion in Pharmacology·Jordi Tauler, James L Mulshine
Dec 23, 2009·Current Opinion in Allergy and Clinical Immunology

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