CTLA4 and neoplasm: In addition, we found, as shown in Figure 7E, that 13 pathways associated with CTLA-4 non-collaboration genes in Treg shared in various groups; 8 pathways associated with CTLA-4 non-collaboration genes in normal tissue Treg; 13 pathways associated with Treg from non-tumor diseased tissues, and 21 pathways associated with tumor Treg.