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In this week's episode, Blood editor Dr. Laurie Sehn interviews authors Drs. Anastasios Karadimitris and Maria Carolina Florian on their papers published in Volume 147 Issue 2 of Blood. Dr. Karadimitris' paper "Off-the-shelf dual CAR-iNKT cell immunotherapy eradicates medullary and leptomeningeal high-risk KMT2A-rearranged leukemia", discusses the success of bispecific CAR-iNKT cells targeting CD19 and CD133 in pre-clinical models, prompting the clinical development of this class of product. Dr. Florian's paper, "A Notch trans-activation to cis-inhibition switch underlies hematopoietic stem cell aging" proposes that the Jagged2/Notch interaction is a key regulator of hematopoietic stem cell divisional symmetry during aging and offers insights that may inform strategies to restore regenerative function in aged hematopoiesis.