Figure 7. Analysis of immune infiltration and lung cancer microenvironment based on CTSV expression in TCGA database. (A) The immune cell infiltration analysis of lung cancer based on CTSV expression. (B–E) The expression of CTSV is correlated with significant immunosuppressive. (F–M) The expression of CTSV is negatively correlated with T cells (G, J), CD8 T cells (H, K), B cells (I, L), and TReg cells (M). *P < 0.05; **P < 0.01; ***P < 0.001.