EPCAM and lung cancer: Exosomes components, such as the exosome membrane bound proteins New York esophageal squamous cell carcinoma 1 (NY-ESO-1), human alkaline phosphatase (PLAP), epidermal growth factor receptor (EGFR), antibody to apoptosis inducible factor 6 interacting protein (AlIX) and epithelial cell adhesion molecule (EpCAM), can be used as non-invasive prognostic biomarkers of lung cancer [37].