%0 Journal Article %T Tight junction physiology of pleural mesothelium %A Alexander G. Markov %A Salah Amasheh %J Frontiers in Physiology %D 2014 %I Frontiers Media %R 10.3389/fphys.2014.00221 %X Pleura consists of visceral and parietal cell layers, producing a fluid, which is necessary for lubrication of the pleural space. Function of both mesothelial cell layers is necessary for the regulation of a constant pleural fluid volume and composition to facilitate lung movement during breathing. Recent studies have demonstrated that pleural mesothelial cells show a distinct expression pattern of tight junction proteins which are known to ubiquitously determine paracellular permeability. Most tight junction proteins provide a sealing function to epithelia, but some have been shown to have a paracellular channel function or ambiguous properties. Here we provide an in-depth review of the current knowledge concerning specific functional contribution of these proteins determining transport and barrier function of pleural mesothelium. %K Mesothelium %K Pleura %K Tight Junctions %K Claudins %K Inflammation %U http://www.frontiersin.org/Journal/10.3389/fphys.2014.00221/abstract