2010
DOI: 10.1074/jbc.m110.127951
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Selective Expansion of Chimeric Antigen Receptor-targeted T-cells with Potent Effector Function using Interleukin-4

Abstract: Polyclonal T-cells can be directed against cancer using transmembrane fusion molecules known as chimeric antigen receptors (CARs). Although preclinical studies have provided encouragement, pioneering clinical trials using CAR-based immunotherapy have been disappointing. Key obstacles are the need for robust expansion ex vivo followed by sustained survival of infused T-cells in patients. To address this, we have developed a system to achieve selective proliferation of CAR ؉ T-cells using

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Cited by 170 publications
(158 citation statements)
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“…After 24 h, 1 3 10 6 ex vivo expanded gd T cells were added to indicated wells for a further 24 h. Monolayers were then fixed and stained with crystal violet and viewed microscopically as described (12).…”
Section: Cytotoxicity Assaysmentioning
confidence: 99%
“…After 24 h, 1 3 10 6 ex vivo expanded gd T cells were added to indicated wells for a further 24 h. Monolayers were then fixed and stained with crystal violet and viewed microscopically as described (12).…”
Section: Cytotoxicity Assaysmentioning
confidence: 99%
“…The protocol involves a cohortbased CAR T-cell and lymphodepletion dose escalation up to a maximum regime of cyclophosphamide (300 mg/m Investigators at Kings College have developed T4 technology in which a CAR targeted against eight of nine possible ErbB homo-and heterodimers 37 is coexpressed with an IL-4-responsive chimeric cytokine receptor. 38 The latter enables the ex vivo enrichment and amplification of gene-modified T-cells by the addition of IL-4 to the culture media. Clinical testing of T4 cells armed with an ErbB family-targeting domain is due to start in the near future involving local administration of the T4 cells to patients with advanced head and neck tumors.…”
Section: University College London Hospital Great Ormond Street Hospmentioning
confidence: 99%
“…Alternatively, tumor monolayer destruction was visualized by nonquantitative crystal violet staining of residual monolayers, as described (31). In these assays, 1 3 10 6 engineered T cells were cocultivated overnight with a confluent monolayer of tumor cells in a 24-well plate.…”
Section: Cytotoxicity Assaysmentioning
confidence: 99%
“…Consequently, IL-4 exerts dual effects upon T cells that express 4ab. Signaling via the endogenous IL-4R is maintained, whereas signals delivered through 4ab convert the weak mitogenic action of IL-4 into a potent growth signal, favoring selective growth of the gene-modified cells (31). Following expansion using IL-4, T cells that coexpress T1E28z and 4ab exhibit polyfunctionality of cytokine production (with a Th1 bias) and mediate effective antitumor activity against head and neck or breast cancer, both in vitro and in vivo (29).…”
mentioning
confidence: 99%