Doyeon Koo, Zhiyuan Mao, Robert Dimatteo, Miyako Noguchi, Natalie Tsubamoto, Jami McLaughlin, Wendy Tran, Sohyung Lee, Donghui Cheng, Joseph de Rutte, Giselle Burton Sojo, Owen N Witte, Dino Di Carlo
The ability to selectively bind to antigenic peptides and secrete effector molecules can define rare and low-affinity populations of cells with therapeutic potential in emerging T cell receptor (TCR) immunotherapies. We leverage cavity-containing hydrogel microparticles, called nanovials, each coated with peptide-major histocompatibility complex (pMHC) monomers to isolate antigen-reactive T cells. T cells are captured and activated by pMHCs inducing the secretion of effector molecules including IFN-γ and granzyme B that are accumulated on nanovials, allowing sorting based on both binding and function...
April 2, 2024: Proceedings of the National Academy of Sciences of the United States of America