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Clinical success of autologous CD19-directed chimeric antigen receptor T cells (CAR Ts) in acute lymphoblastic leukemia and non-Hodgkin lymphoma suggests that CAR Ts may be a promising therapy for hematological malignancies, including multiple myeloma. However, autologous CAR T therapies have limitations that may impact clinical use, including lengthy vein-to-vein time and manufacturing constraints. Allogeneic CAR T (AlloCAR T) therapies may overcome these innate limitations of autologous CAR T therapies. Unlike autologous cell therapies, AlloCAR T therapies employ healthy donor T cells that are isolated in a manufacturing facility, engineered to express CARs with specificity for a tumor-associated antigen, and modified using gene-editing technology to limit T cell receptor (TCR)-mediated immune responses. Here, transcription activator-like effector nuclease (TALEN) gene editing of B cell maturation antigen (BCMA) CAR Ts was used to confer lymphodepletion resistance and reduced graft-versus-host disease (GvHD) potential. The safety profile of allogeneic BCMA CAR Ts was further enhanced by incorporating a CD20 mimotope-based intra-CAR off switch enabling effective CAR T elimination in the presence of rituximab. Allogeneic BCMA CAR Ts induced sustained antitumor responses in mice supplemented with human cytokines, and, most importantly, maintained their phenotype and potency after scale-up manufacturing. This novel off-the-shelf allogeneic BCMA CAR T product is a promising candidate for clinical evaluation.
This article was published in the following journal.
Name: Molecular therapy : the journal of the American Society of Gene Therapy
B-cell maturation antigen (BCMA), a tumor necrosis factor receptor (TNFR) family member, is selectively expressed on terminally differentiated B-lymphocytes including multiple myeloma (MM) tumor cells...
Chimeric antigen receptor (CAR) T cell therapy is a new cancer immunotherapy targeting cancer-specific cell surface antigen. CD19-CAR T cells have been already shown to be very effective to B cell leu...
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The purpose of this study is to infuse BCMA CAR-NK 92 cells to the patients with relapsed and refractory multiple myeloma (MM), to assess the safety and feasibility of this strategy. The C...
This phase I trial studies the side effects and best dose of BCMA CART cells in treating patients with BCMA positive multiple myeloma that have not respond to chemotherapy and autologous H...
The purpose of this study is to test the safety and efficacy of AUTO2, a CAR T Cell Treatment Targeting BCMA and TACI, in Patients with Relapsed or Refractory Multiple Myeloma.
The purpose of this study is to infusion BCMA CAR-T cells to the patients with relapsed and refractory multiple myeloma(MM), to assess the safety and feasibility of this strategy. The CAR ...
To test the safety and efficacy of giving targeting CD138 or B-cell maturation antigen T cells in treating patients with CD138 or BCMA positive multiple myeloma that is refractory to furth...
Preclinical testing of drugs in experimental animals or in vitro for their biological and toxic effects and potential clinical applications.
Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.
An immortalized cell line derived from human ADENOCARCINOMA, ALVEOLAR basal epithelial cells isolated from the lungs of a male patient in 1972. The cell line is positive for KERATIN, can synthesize LECITHIN, and contains high levels of POLYUNSATURATED FATTY ACIDS in its PLASMA MEMBRANE. It is used as a model for PULMONARY ALVEOLI function and virus infections, as a TRANSFECTION host, and for PRECLINICAL DRUG EVALUATION.
An internationally recognized set of published rules used for evaluation of cancer treatment that define when tumors found in cancer patients improve, worsen, or remain stable during treatment. These criteria are based specifically on the response of the tumor(s) to treatment, and not on the overall health status of the patient resulting from treatment.
The treatment of patients without the use of allogeneic BLOOD TRANSFUSIONS or blood products.
Hodgkin Lymphoma is a disorder caused by malignant proliferation of lymphocytes, which contain characteristic mirror-image nuclei (Reed-Sternburg cells). The resulting lymphadenopathy can be limited to a single lymph node region (Stage 1) or spread...