CD8A and neoplasm: In contrast, CD8+ T cells were comparable in frequency between WT and strain 71 in both healthy and lungs of tumor-bearing recipients (Fig. 7F,G), with only a small proportion of CD8+ T cells in all mouse strains being KLRG1+ after metastasis formation (Fig. 7H), indicating that in this model CD8+ T cells do not play a major role inhibiting metastasis.