In the 68 cases of the adjacent normal tissue, there were 48 cases with NF1 high protein expression (Figure 1B a) and 20 cases with NF1 low/ no protein expression (Figure 1B b); In the 68 cases of the UPS sarcoma tissue, there were 27 cases with NF1 high protein expression (Figure 1B c) and 41 cases with NF1 low/no protein expression (Figure 1B d). Here, NF1 is linked to sarcoma.