Transcriptomics

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Single cell imaging of T cell immunotherapy responses in vivo


ABSTRACT: T cell immunotherapies have revolutionized treatment for a subset of cancers. Yet, a major hurdle has been the lack of facile and predicative preclinical animal models that permit dynamic visualization of T cell immune responses at single cell resolution in vivo. Here, optically-clear immunocompromised zebrafish were engrafted with fluorescent-labelled human cancers along with chimeric antigen receptor T (CAR T) cells, bispecific T cell engagers (BiTEs), and antibody peptide epitope conjugates (APECs), allowing real-time single cell visualization of T cell-based immunotherapies in vivo. This work uncovered important differences in the kinetics of T cell infiltration, tumor cell engagement and killing between these immunotherapies and established early endpoint analysis to predict therapy responses. We also established EGFR-targeted immunotherapies as a powerful approach to kill rhabdomyosarcoma muscle cancers, providing strong preclinical rationale for assessing a wider array of T cell immunotherapies in this disease.

ORGANISM(S): Danio rerio

PROVIDER: GSE179401 | GEO | 2021/07/06

REPOSITORIES: GEO

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