Cytokine‑fusion scaffold produces long‑lived CAR‑T cells in preclinical models

Researchers at Albert Einstein College of Medicine described a manufacturing innovation that links IL‑7, IL‑15 and IL‑21 into a single protein scaffold (HCW9206) used during CAR‑T production. In mouse models the approach generated CAR‑T populations enriched for T memory stem cells and showed more durable disease control in hematologic cancer and HIV models versus standard protocols. The method targets cell persistence at the point of manufacture rather than altering the CAR construct itself, offering a potentially generalizable strategy to extend clinical durability.