Since we recently showed profoundly enhanced surface expression of immune checkpoint ligands PD-L1 (encoded by Cd274) and PD-L2 (encoded by Pdcd1lg2) on lymphoma cells in an OIS-dependent fashion6, we sought to examine here PD-L1 expression in the DC-like mouse lymphoma TIS subpopulations. The gene discussed is PDCD1LG2; the disease is lymphoma.