When Thy1.1+H60+ or H60−C1498 cells were injected i.v. into polyclonal recipients (Fig. 8c), only the B6 or Con-H60 recipients with Thy1.1+H60+C1498 survived for a long period: H60-tetramer+ CD8 T cells were detected at significant frequencies in peripheral blood, while Thy1.1+ tumor cells were rarely detected (Fig. 8f, g). The gene discussed is CD8A; the disease is neoplasm.