Journal
ONCOIMMUNOLOGY
Volume 2, Issue 5, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/onci.24238
Keywords
chimeric antigen receptor; cyclophosphamide; FOXP3(+) regulatory T cells; lymphodepletion; T-cell receptor; tumor-infiltrating lymphocytes
Categories
Funding
- European Commission (ArtForce)
- Agence National de la Recherche (ANR)
- Ligue contre le Cancer (Equipe labelisee)
- Fondation pour la Recherche Medicale (FRM)
- Institut National du Cancer (INCa)
- LabEx Immuno-Oncologie
- Fondation de France
- Fondation Bettencourt-Schueller
- AXA Chair for Longevity Research
- Canceropole Ile-de-France
- Paris Alliance of Cancer Research Institutes (PACRI)
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Adoptive cell transfer (ACT) represents a prominent form of immunotherapy against malignant diseases. ACT is conceptually distinct from dendritic cell-based approaches (which de facto constitute cellular vaccines) and allogeneic transplantation (which can be employed for the therapy of hematopoietic tumors) as it involves the isolation of autologous lymphocytes exhibiting antitumor activity, their expansion/activation ex vivo and their reintroduction into the patient. re-infusion is most often performed in the context of lymphodepleting regimens (to minimize immunosuppression by host cells) and combined with immunostimulatory interventions, such as the administration of Toll-like receptor agonists. Autologous cells that are suitable for ACT protocols can be isolated from tumor-infiltrating lymphocytes or generated by engineering their circulating counterparts for the expression of transgenic tumor-specific T-cell receptors. Importantly, lymphocytes can be genetically modified prior to re-infusion for increasing their persistence in vivo, boosting antitumor responses and minimizing side effects. Moreover, recent data indicate that exhausted antitumor T lymphocytes may be rejuvenated in vitro by exposing them to specific cytokine cocktails, a strategy that might considerably improve the clinical success of ACT. Following up the Trial watch that we published on this topic in the third issue of OncoImmunology (May 2012), here we summarize the latest developments in ACT-related research, covering both high-impact studies that have been published during the last 13 months and clinical trials that have been initiated in the same period to assess the antineoplastic profile of this form of cellular immunotherapy.
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