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Journal, CAR T-Cell Therapy: Anti-HLA antibodies in recipients of CD19 versus BCMA-targeted CAR T-cell therapy. (Pubmed Central) - Mar 14, 2023 These data implicate CD19 long-lived plasma cells as an important source for anti-HLA antibodies, a model supported by infrequent HLA sensitization in BCMA-CARTx subjects receiving previous plasma cell-targeted therapies. Thus, plasma cell-targeted therapies may be more effective against HLA antibodies, thereby enabling improved access to organ transplantation and rejection management.
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Stromal cell derived IL6 inhibits the extrinsic apoptotic pathway in multiple myeloma cell lines (Section 35) - Mar 9, 2022 - Abstract #AACR2022AACR_4767; Clinical trials have shown that BCMA targeted CAR-T therapy induces MM remission in most patients with heavily pretreated relapsed refractory MM; however, the duration of the response has been disappointing...This suggests that soluble factors in the BMM can convert cells from type I to type II (mitochondrial-dependent) death receptor signaling and that inhibiting BMM signals such as IL6 may enhance FASL-induced cell death in MM. However, the data also demonstrate that the role of FAS in CAR-T killing is cell context dependent.
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Trial primary completion date, Combination therapy, CAR T-Cell Therapy: NCI-2018-00514: BCMA-Specific CAR T-Cells Combined With a Gamma Secretase Inhibitor (JSMD194) to Treat Relapsed or Persistent Multiple Myeloma (clinicaltrials.gov) - Aug 18, 2021 P1, N=18, Suspended, 67% of patients were refractory to lenalidomide, pomalidomide, bortezomib, carfilzomib, and daratumumab, 72% had high-risk cytogenetic features, and 28% had extramedullary disease. Trial primary completion date: Jul 2021 --> Apr 2022
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