PDCD1 and diffuse large B-cell lymphoma: In T-DLBCL, the content of PD-L1+CD68+ TAMs has been shown to correlate with the content of PD-1+CD4+ TILs and PD-1+ CTLs, suggesting that these TAMs with a favorable prognostic value might more likely represent an M1- than M2-like phenotype [24].