CD4 and non-small cell lung carcinoma: Furthermore, in non-small cell lung cancer (NSCLC), memory (CD4+ forkhead box P3/Foxp3/+ CD25high CD27+ CD45RA−) Tregs can also be transformed into Th17-like phenotype, expressing C-C Motif Chemokine Receptor (CCR)6 and IL17 [69,70].