Table 5.
Comparison of the PD-L1 status between tumor cells and immune cells within peripheral blood and primary tumors.
| PD-L1 Distribution among Tumor and Immune Cells | Peripheral Blood Patients (%) |
Primary Tumor Patients (%) |
||||
|---|---|---|---|---|---|---|
| CTCs | PBMCs | Positivity Concordance | Tumor Cells | TILs | Positivity Concordance | |
| PD-L1 expression | 27.8 | 22.2 | 11.1 | 34.6 | 65.4 | 34.6 |
| PD-L1high expression | 19.4 | 5.6 | 2.8 | 11.5 | 42.3 | 11.5 |
PD-L1 expression on tumor and immune cells was investigated in blood samples (no of patients: n = 36) and primary tissue samples (no of patients: n = 26).