IL10 and Sepsis: IL‐10 reduces injury in several AKI models27, 36, 37, 38 and mediates an MSC effect in sepsis and AKI.39 Xenotransplantation of human MSC in mice renders MSC‐derived IL‐10 (human) distinguishable from host‐derived IL‐10 (mouse) and reveals that the additional IL‐10 produced by MSC is necessary for the improved AKI outcomes with pFUS.