Abstract: Provided herein are methods of producing engineered T cell compositions enriched for CD57 negative and/or CD27 positive T cells, such as from a plurality of donors. In some embodiments, the T cells are engineered with a recombinant receptor, such as a chimeric antigen receptor (CAR). Also provided herein are engineered T cell compositions containing T cells enriched for CD57 negative and/or CD27 positive T cells derived from a plurality of different donors, including compositions in which the T cells are engineered with or express a recombinant receptor (e.g. CAR). Also provided are methods of using the engineered T cell compositions in adoptive therapy, including in connection for cancer immunotherapy, such as for allogeneic therapies or for administration to one or more subjects in which the T cells are not derived from the subject(s) to whom the compositions are administered.

Abstract: The present disclosure provides cell populations enriched for CD57 negative T cells, or depleted for CD57 positive cells, and methods for stimulating, cultivating, expanding, and/or genetically engineering cell populations enriched for CD57? T cells or depleted for CD57+ T cells. Also included are methods for generating, isolating, enriching, or selecting CD57? T cells or depleting CD57+ cells, such as by negative selection.