Antigen-specific T cells fully conserve antitumour function following cryopreservation.
Jorge L Galeano Niño1,2, Rain Y Q Kwan1,2, Wolfgang Weninger1,2,3
1Immune Imaging Program, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales, Australia.
Immunology and Cell Biology
|January 13, 2016
Summary
Cryopreservation of T cells for immunotherapy fully preserves their function. This finding supports using cryopreserved T cells for cancer treatment, ensuring their effectiveness in fighting tumors.
Area of Science:
- Immunology
- Cellular Therapy
- Cancer Research
Background:
- Adoptive T-cell transfer immunotherapies are advancing for cancer treatment.
- Prolonged ex vivo T-cell culturing can diminish their therapeutic functionality.
Purpose of the Study:
- To investigate the impact of cryopreservation on ex vivo-expanded murine tumor-reactive CD8(+) T cells.
- To determine if cryopreservation affects T-cell differentiation, cytokine secretion, cytotoxic function, motility, and anti-tumor efficacy.
Main Methods:
- Comparison of cryopreserved and freshly isolated murine tumor-reactive CD8(+) T cells.
- Assessment of T-cell differentiation potential, cytokine profiles, cytotoxic activity, and 3D motility.
- Evaluation of tumor infiltration and rejection capacity in vivo.
Main Results:
- Cryopreservation maintained the differentiation potential of effector T cells.
- Pro-inflammatory cytokine secretion and cytotoxic functions remained intact post-cryopreservation.
- T-cell scanning motility, tumor infiltration, and rejection capabilities were not impaired by cryopreservation.
Conclusions:
- Cryopreservation is a viable strategy for preserving the functionality of ex vivo-expanded T cells for adoptive immunotherapy.
- This approach facilitates the storage and on-demand use of T cells, enhancing the logistical feasibility of cancer immunotherapeutic regimens.
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