When the relative expression of both the KLRG1 and PD-1 cell surface markers were examined together in distant tumor TIL, The SIINFEKL+CD8 TIL from control (no treatment and IT-pUMVC3/EP-treated) mice showed a predominant unimodal population of KLRG1loPD-1hi CD8+ T cells (only IT-pUMVC3/EP is shown; Fig. 7a; circled in red). Here, KLRG1 is linked to neoplasm.