PD-1 immune checkpoint blockade (ICB) is revolutionizing cancer therapy, but little is known about the mechanisms governing its expression. In a whole-genome, dual- marker FACS-based CRISPR-Cas9 screen in primary murine CD8 T cells, we found that inactivation of the EMP24/GP25L/p24 protein family, m...
ORGANISM(S): Mus musculus