EGFR and non-small cell lung carcinoma: Zhao et al. [86] analyzed the expression of the plasma exosomal miRNAs in the tumor tissues of 150 patients with non-small cell lung cancer, and found that plasma levels of the exosomal hsa-miRNAs (hsa-miR-25, hsa-miR-122, hsa-miR-195, hsa-miR-21 and hsa-miR-125b) were associated with EGFR mutation, which could help to determine whether or not to use targeted therapy drugs and provide a new way to detect NSCLC gene mutations.