PDGFB and breast cancer: BC patients (n = 3951) were stratified according to the expression status of MYB, CSF1 and inverted expression status of CD163, VEGFA and PDGFB. As previously reported by us and others20,23 high MYB expression decreases the risk of relapse (hazard ratio, HR = 0.68, p = 1.7e − 08) (Fig. 3d).