The EMT phenotype is positively correlated with PD-L1, PD-L2, PD-1, TIM-3, B7-H3, BTLA, and CTLA-4 expression, as well as CD4+ Foxp3+ Tregs expansion in non-small cell lung cancer (NSCLC) (62). The gene discussed is PDCD1LG2; the disease is non-small cell lung carcinoma.