This order was slightly different in the recurrent GBM setting: A2aR > PD-1 > CD39 > BTLA > TIGIT > CD160 > CTLA-4 > LAG-3 > CD73 > TIM3 > KIR (Supplemental Figure 2; supplemental material available online with this article; https://doi.org/10.1172/jci.insight.134386DS1). Here, CTLA4 is linked to glioblastoma.