The present invention provides nucleic acids, vectors, host cells, methods and compositions to confer and/or augment immune responses mediated by cellular immunotherapy, such as by adoptively transferring CD8+ central memory T cells or combinations of central memory T cells with CD4+ T cells that are genetically modified to express a chimeric receptor under the control of an inducible promoter. In some alternatives the genetically modified host cell comprises a nucleic acid comprising a polynucleotide coding for a chimeric antigen receptor comprising a ligand binding domain, a polynucleotide comprising a spacer region, a polynucleotide comprising a transmembrane domain, and a polynucleotide comprising an intracellular signaling domain under the control of a drug inducible promoter. Controlling the expression of the chimeric receptor provides for the ability to turn expression on and off depending on the status of the patient. Pharmaceutical formulations produced by the method, and methods of using the same, are also described.
Tumor-specific IFNA secretion by car T-cells to reprogram the solid tumor microenvironment
申请人:Seattle Children's Hospital
公开号:US10919950B2
公开(公告)日:2021-02-16
The present application relates to fusion proteins, chimeric antigen bearing cells expressing fusion proteins and compositions comprising chimeric antigen bearing cells expressing fusion proteins. The application further relates to methods of using the fusion proteins, cells and compositions for modulating an immune response.
Disclosed herein are methods of engineering a bi-specific T-cell expressing chimeric antigen receptors for promoting the in vivo expansion and activation of an effector cell and a second chimeric antigen receptor or TcR specific for a ligand on a tumor. Methods of administering to subjects in need, bi-specific chimeric antigen receptor bearing cells are also provided.
本文所公开的方法是设计一种表达嵌合抗原受体的双特异性 T 细胞,用于促进效应细胞和第二种嵌合抗原受体或 TcR 的体内扩增和活化,第二种嵌合抗原受体或 TcR 对肿瘤上的配体具有特异性。还提供了向有需要的受试者施用携带双特异性嵌合抗原受体细胞的方法。
DRUG RELATED TRANSGENE EXPRESSION
申请人:Seattle Children's Hospital,
dba Seattle Children's Research Institute
公开号:EP3129399A1
公开(公告)日:2017-02-15
BISPECIFIC CAR T-CELLS FOR SOLID TUMOR TARGETING
申请人:Seattle Children's Hospital,
dba Seattle Children's Research Institute