C1QA and melanoma: Among them, we labelled melanoma with Mitf, Tyr, Tyrp1, Dct and Pmel; monocytes with Cd14, Cd68 and C1qa; T cell with Cd3e, Cd8a and Nkg7; and a group of Egfr+ cells expressing Egfr (Figures 4B‒E and S4E).