A method of treating cancer comprises: (a) providing allogenic or autologous white blood cells from a suitable donor and then (b) administering the white blood cells to the subject in an amount effective to treat the cancer. Preferably the white blood cells comprise innate immune cells. Preferably the white blood cells comprise less than 10% by number of cytotoxic T lymphocytes. Preferably the white blood cells, or more particularly the innate immune cells, are preselected in vitro to kill cancer cells in vitro (for example, by collecting white blood cells from the patient and determining that the white blood cells kill cancer cells in vitro before and thereby pre-selecting the donor, before collecting a subsequent population of cells from the donor for administration).
