Universal Chimeric Antigen Receptors for Multiplexed and Logical Control of T Cell Responses.

Cell
Authors
Keywords
Abstract

T cells expressing chimeric antigen receptors (CARs) are promising cancer therapeutic agents, with the prospect of becoming the ultimate smart cancer therapeutics. To expand the capability of CAR T cells, here, we present a split, universal, and programmable (SUPRA) CAR system that simultaneously encompasses multiple critical "upgrades," such as the ability to switch targets without re-engineering the T cells, finely tune T cell activation strength, and sense and logically respond to multiple antigens. These features are useful to combat relapse, mitigate over-activation, and enhance specificity. We test our SUPRA system against two different tumor models to demonstrate its broad utility and humanize its components to minimize potential immunogenicity concerns. Furthermore, we extend the orthogonal SUPRA CAR system to regulate different T cell subsets independently, demonstrating a dually inducible CAR system. Together, these SUPRA CARs illustrate that multiple advanced logic and control features can be implemented into a single, integrated system.

Year of Publication
2018
Journal
Cell
Volume
173
Issue
6
Pages
1426-1438.e11
Date Published
2018 05 31
ISSN
1097-4172
DOI
10.1016/j.cell.2018.03.038
PubMed ID
29706540
PubMed Central ID
PMC5984158
Links
Grant list
DP2 CA186574 / CA / NCI NIH HHS / United States