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Transduction and Expansion of Primary T Cells in Nine Days with Maintenance of Central Memory Phenotype
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T cell regeneration after immunological injury

Enrico Velardi1, Jennifer J Tsai2,3, Marcel R M van den Brink4,5,6

  • 1Department of Pediatric Hematology and Oncology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy. enrico.velardi@opbg.net.

Nature Reviews. Immunology
|October 24, 2020
PubMed

Following periods of haematopoietic cell stress, such as after chemotherapy, radiotherapy, infection and transplantation, patient outcomes are linked to the degree of immune reconstitution, specifically of T cells. Delayed or defective recovery of the T cell pool has significant clinical consequences, including prolonged immunosuppression, poor vaccine responses and increased risks of infections and malignancies. Thus, strategies that restore thymic function and enhance T cell reconstitution can provide considerable benefit to individuals whose immune system has been decimated in various settings. In this Review, we focus on the causes and consequences of impaired adaptive immunity and discuss therapeutic strategies that can recover immune function, with a particular emphasis on approaches that can promote a diverse repertoire of T cells through de novo T cell formation.

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