Methods to manufacture regulatory T cells for cell therapy

K. N. MacDonald,James M. Piret,M. Levings

Published 2019 in Clinical and Experimental Immunology

ABSTRACT

Regulatory T cell (Treg) therapy has shown promise in early clinical trials for treating graft‐versus‐host disease, transplant rejection and autoimmune disorders. A challenge has been to isolate sufficiently pure Tregs and expand them to a clinical dose. However, there has been considerable progress in the development and optimization of these methods, resulting in a variety of manufacturing protocols being tested in clinical trials. In this review, we summarize methods that have been used to manufacture Tregs for clinical trials, including the choice of cell source and protocols for cell isolation and expansion. We also discuss alternative culture or genome editing methods for modulating Treg specificity, function or stability that could be applied to future clinical manufacturing protocols to increase the efficacy of Treg therapy.

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