Abstract:
:T cell engineering is a powerful means to rapidly generate anti-tumor T cells. The costimulatory properties of second-generation chimeric antigen receptors (CARs) determine the overall potency of adoptively transferred T cells. Using an in vivo "stress test" to challenge CD19-targeted T cells, we studied the functionality and persistence imparted by seven different CAR structures providing CD28 and/or 4-1BB costimulation. One configuration, which uses two signaling domains (CD28 and CD3ζ) and the 4-1BB ligand, provided the highest therapeutic efficacy, showing balanced tumoricidal function and increased T cell persistence accompanied by an elevated CD8/CD4 ratio and decreased exhaustion. Remarkably, induction of the IRF7/IFNβ pathway was required for optimal anti-tumor activity. Thus, 1928z-41BBL T cells possess strikingly potent intrinsic and immunomodulatory qualities.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Zhao Z,Condomines M,van der Stegen SJC,Perna F,Kloss CC,Gunset G,Plotkin J,Sadelain Mdoi
10.1016/j.ccell.2015.09.004subject
Has Abstractpub_date
2015-10-12 00:00:00pages
415-428issue
4eissn
1535-6108issn
1878-3686pii
S1535-6108(15)00335-9journal_volume
28pub_type
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