• Kazuhiro Ikegame.
• Hematopoietic Cell Transplantation Center, Aichi Medical University of School of Medicine, Japan.
• Intern. Med. 2024 Aug 28.

AbstractChimeric antigen receptor-T-cell (CAR-T) therapy for hematologic malignancies has made significant advancements over the years, and it is now incorporated as a treatment algorithm. Early phase clinical trials are underway for various solid tumors, and the effectiveness of CAR-T cell therapy has been demonstrated for specific types of glioma and several solid tumors. However, its efficacy does not match that observed in hematological malignancies. Recently, a case series reported CAR-T therapy targeting CD19 for autoimmune diseases such as systemic lupus erythematosus, leading to a dramatic improvement in the clinical symptoms and the possibility of discontinuing immunosuppressive agents. Furthermore, CAR-T cell therapy is expected to be effective against various viruses and Aspergillus spp. Finally, attempts have been made to introduce CAR constructs into regulatory T cells to target their immunosuppressive effects. This article introduces the current progress in CAR-T cell therapy beyond the treatment of only hematologic malignancies and discusses future directions, considering the current medical situation in Japan.

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