CS1 SPECIFIC MULTI-CHAIN CHIMERIC ANTIGEN RECEPTOR
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United States of America Patent
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Feb 23, 2017
app pub date -
Apr 30, 2015
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May 2, 2014
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Abstract
The present invention relates to a new generation of chimeric antigen receptors (CAR) referred to as multi-chain CARs, which are made specific to the antigen CS1. Such CARs aim to redirect immune cell specificity and reactivity toward malignant cells expressing the tumor antigen CS1. The alpha, beta and gamma polypeptides composing these CARs are designed to assemble in juxtamembrane position, which forms flexible architecture closer to natural receptors, that confers optimal signal transduction. The invention encompasses the polynucleotides, vectors encoding said multi-chain CAR and the isolated cells expressing them at their surface, in particularly for their use in immunotherapy. The invention opens the way to efficient adoptive immunotherapy strategies for treating cancer, especially multiple myeloma.
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