ROR1 specific multi-chain chimeric antigen receptor

    公开(公告)号:US10544201B2

    公开(公告)日:2020-01-28

    申请号:US15329530

    申请日:2015-07-29

    Applicant: CELLECTIS

    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 ROR1. Such CARs aim to redirect immune cell specificity and reactivity toward malignant cells expressing the tumor antigen ROR1. 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 chronic lymphocytic leukemia or solid tumors.

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