WWTR1 and lung carcinoma: Next, to verify if TAZ can be found in exosomes, exosomes from conditioned media of different lung cancer cells (SPC-A1, A549, SPC-A1-BM, H1581, and H520) were isolated by ultracentrifugation method (Fig. S3A) and characterized by TEM, NTA and Western blot (Figs. 2E–G and S5B–G).