In this week’s episode, we will review a study that describes the pathogenic relevance of retinoic acid-responsive CD8+ T-cells in gastrointestinal graft-versus-host disease, learn more about how storage-induced disturbances of platelets is linked to changes in the number and sphingolipid content of platelet extracellular vesicles which predispose to transfusion related acute lung injury, and lastly, review the findings of a phase II study of venetoclax plus R-CHOP as first-line treatment for patients with diffuse large B-cell lymphoma.