Searching for factors to improve the antileukemic effect of donor lymphocyte infusion

To the editor: The lymphopenic environment can induce T-cell expansion/activation, a phenomenon referred to as lymphopenia-induced proliferation that can be distinguished from (allogeneic) antigen-induced proliferation.[1][1] Dudley et al showed that a cyclophosphamide (Cy) and fludarabine (Flu)