CTLA4 and neoplasm: TUBA1B was overexpressed in NSCLC PBL T cells, C14 CD4/CD8 T cell clusters [49], and activated tumor Tregs of CD4-C9-CTLA4 (TNFRSF9+) vs. non-activated tumor Tregs of CD4-C9-CTLA4 (TNFRSF9−) [73].