1区 · 综合性期刊
ArticleOA
作者: Kirby, Maurice ; Song, Xin ; Smith, Rachel ; Michelet, Xavier ; Nikiforow, Sarah ; Shaw, Kit ; Stebbing, Justin ; Qin, Yu ; van Besien, Koen ; Purbhoo, Marco A ; van Dijk, Marc ; Gomez-Arteaga, Alexandra ; Masakayan, Reed ; Ortuzar, Waldo ; Kadel, Sapana ; Buffa, Alexa ; Daley, Heather ; Exley, Mark A ; Mishchenko, Ilya ; Stevens, Don ; Yigit, Burcu ; Moskowitz, Darrian ; Hammond, Terese C ; Buell, Jennifer S ; Ritz, Jerome ; Soh, Kah Teong ; Chamberland, John ; Nasonenko, Valeriia ; Chand, Dhan ; Boi, Shannon
Abstract:Invariant natural killer T (iNKT) cells, a unique T cell population, lend themselves for use as adoptive therapy due to diverse roles in orchestrating immune responses. Originally developed for use in cancer, agenT-797 is a donor-unrestricted allogeneic ex vivo expanded iNKT cell therapy. We conducted an open-label study in virally induced acute respiratory distress syndrome (ARDS) caused by the severe acute respiratory syndrome-2 virus (trial registration NCT04582201). Here we show that agenT-797 rescues exhausted T cells and rapidly activates both innate and adaptive immunity. In 21 ventilated patients including 5 individuals receiving veno-venous extracorporeal membrane oxygenation (VV-ECMO), there are no dose-limiting toxicities. We observe an anti-inflammatory systemic cytokine response and infused iNKT cells are persistent during follow-up, inducing only transient donor-specific antibodies. Clinical signals of associated survival and prevention of secondary infections are evident. Cellular therapy using off-the-shelf iNKT cells is safe, can be rapidly scaled and is associated with an anti-inflammatory response. The safety and therapeutic potential of iNKT cells across diseases including infections and cancer, warrants randomized-controlled trials.