In comparison, for platelet surface expression of P-selectin only a trend towards an elevation was seen after TRAP stimulation in GBM (GBM: 63.5%, range from 28% to 79.4%/CON: 54%, range from 21.5% to 77.1%/p = 0.07) (Figure 3B). Here, SELP is linked to glioblastoma.