Investigation of immune cell and brain cell data (DICE database [61] and study GSE73721 [78]) revealed high expression of HGF in monocytes and astrocytes (Fig. 3f, g), and the exploration of single-cell studies (GSE115978 [32] and GSE186344 [22]) revealed melanoma and MBM associated microglia/macrophages as a source of released HGF (Supplementary Fig. 4b). This evidence concerns the gene HGF and melanoma.