- Patients must have undergone a human leukocyte antigen (HLA) matched (sibling) allogeneic HCT for a hematologic or lymphoid malignancy other than chronic myelogenous leukemia (CML) who have recurrent or persistent disease and are otherwise eligible for donor leukocyte infusions CML patients with persistent disease after receiving donor lymphocyte infusion of at least 1x10^8cells/kg will be eligible for CD8+ memory T cell infusion