From: Exploratory analysis of immune checkpoint receptor expression by circulating T cells and tumor specimens in patients receiving neo-adjuvant chemotherapy for operable breast cancer
Pre-NAC cohort (n = 6)
Post-NAC cohort (n = 17)
Overall PD-L1+
4 (66.7%)
9 (52.9%)
Intratumoral PD-L1+
3 (50.0%)
5 (29.4%)
Stromal PD-L1+
10 (58.8%)
Overall PD-1+
2 (33.3%)
4 (23.5%)