Research Article

Elevated Expression of Programmed Death-1 and Programmed Death Ligand-1 Negatively Regulates Immune Response against Cervical Cancer Cells

Figure 4

The mRNA expression levels of PD-1 and PD-L1. qRT-PCR was used to measure (a) PD-1 mRNA level and (b) PD-L1 mRNA level in normal control, CIN, and cervical cancer groups. compared with control group; compared with CIN group.
(a)
(b)