PDGFRA and neoplasm: To this end, we used multiplex immunofluorescence (m-IF) for ASMA, PDGFRα, CD74, the pan-stroma marker, Vimentin, and the tumor marker, p53 (n = 8 tumors, all of which were TP53 mutated, to identify tumor cells; Fig. 5a and Supplementary Fig. 14a).