T cells play a central role in immunity to pathogens and tumors, but also in autoimmunity. T cell research has generated knowledge that led to multiple clinical breakthroughs, such as the generation of T cell vaccines and tumor immunotherapy approaches. However, additional work is required to fully understand T cell biology, harness their therapeutic potential and control immunopathologies. Cutting edge experimental protocols that interrogate and manipulate T cell biology often require prior purification of T cell populations. Strategies to simplify and accelerate T cell purification are highly desirable to save time, reduce bias and allow complex experiments to be performed. We established workflows combining automated tissue dissociation with T cell isolation. We developed new CD90.1, and CD90.2 T cell specific enrichment reagents that significantly accelerated the isolation protocol. These reagents could be used to isolate total T cells, or rare CD90.1+ or CD90.2+ cells from adoptive transfer models. Importantly, culture of isolated T cells did not induce activation as measured by CD69 or CD25 upregulation, as compared to controls. Furthermore, magnetic isolation did not affect proliferation or cytokine expression following in vitro stimulation. Finally, T cell isolation could be fully automated and multiple samples could be processed in parallel. Our new workflow greatly reduces time of downstream analysis while preserving cell phenotype and functional properties. We believe these innovative tools significantly shorten time-consuming experiments and can be used to increase reproducibility and the quality of data obtained in T cell research.
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