The melanoma-origin of the detected cells in culture and in samples from patients was confirmed via co-staining for anti-Melan-A, thus distinguishing melanoma cells (DAPI+/GFP+/Melan A+) from the surrounding WBCs (DAPI+ /GFP- /Melan A-) (Fig. 2C). The gene discussed is MLANA; the disease is melanoma.