Osteopontin (OPN) is an important mediator of inflammation and cancer progression. In the present study, we asked whether pleural fluid (PF) and serum OPN concentrations differed between patients with pleural effusions of different aetiologies, and whether assessment of OPN levels was useful for diagnostic purposes.
Applied Biomedical Research and Training Center Marianthi Simou., Department of Critical Care & Pulmonary Services, General Hospital 'Evangelismos', School of Medicine, University of Athens, Athens.