FOSL1 and melanoma: High expression of CEACAM1 in the melanoma samples correlated with high FOSL1 (φ = 0.36, p < 0.001) and also CEACAM1 staining in a certain area of an individual melanoma often correlated with FOSL1 staining intensity in the same area (serial sections, e.g. Supplementary Fig. 8).