申请人:St. Anna Kinderkrebsforschung
公开号:EP3632461A1
公开(公告)日:2020-04-08
Disclosed is a group of chimeric antigen receptors (CARs) consisting of two, three or four CAR molecules,
wherein the members of the group of CARs can be different or identical in their amino acid sequences to one another, and
wherein each of the CAR molecules of the group comprise at least a transmembrane domain and an ectodomain comprising either an antigen binding moiety or a binding site to which another polypeptide is able to bind, wherein the another polypeptide comprises an antigen binding moiety;
wherein each CAR molecule of the group comprises at least one dimerization domain, wherein this dimerization of a pair of dimerization domains is either induced by a regulating molecule and optionally reduced by another regulating molecule, or occurs in the absence of a regulating molecule and is reduced by a regulating molecule, and
wherein the ectodomain of each CAR molecule of the group in its prevalent conformation is free of cysteine amino acid moieties which are able to form intermolecular disulphide bonds with other CAR molecules of the group, respectively, and
wherein the antigen binding moieties of the CAR molecules of the group and of the other polypeptides being able to bind to the CAR molecules of the group are either specific for one target antigen or for a non-covalent or a covalent complex of different target antigens.
公开了一组嵌合抗原受体(CAR),由两个、三个或四个 CAR 分子组成、
其中,该组 CAR 成员的氨基酸序列可以彼此不同或相同,以及
其中该组的每个 CAR 分子至少包括一个跨膜结构域和一个外结构域,该结构域包括抗原结合分子或另一种多肽可与之结合的结合位点,其中另一种多肽包括抗原结合分子;
其中该组的每个 CAR 分子包括至少一个二聚化结构域,一对二聚化结构域的这种二聚化或者由调节分子诱导并可选地被另一个调节分子降低,或者在没有调节分子的情况下发生并被调节分子降低,以及
其中,该组每个 CAR 分子的外结构域在其盛行构象中不含半胱氨酸氨基酸分子,而半胱氨酸氨基酸分子可分别与该组其他 CAR 分子形成分子间二硫键,以及
其中,该组 CAR 分子和能与该组 CAR 分子结合的其他多肽的抗原结合分子对一种靶抗原或不同靶抗原的非共价或共价复合物具有特异性。