CD274 and neoplasm: The expression levels and spatial localization of immune biomarkers including CD3, CD4, CD8, CD68, FOXP3, PD-1, and PD-L1 (Supplemental Figure 1; supplemental material available online with this article; https://doi.org/10.1172/jci.insight.165356DS1) were examined relative to the tumor marker CK/SOX10 in 16 TNBC COX2hi versus COX2lo expressing tumors.