This study reports the first well-documented case of adult T-cell leukemia (ATL) successfully treated with unrelated cord blood transplantation (UCBT). A 49-year-old woman was diagnosed with acute-type of ATL. Chemotherapy induced complete remission, but the human T-cell leukemia virus type 1 (HTLV-1) proviral load was detected in mononuclear cells of her peripheral blood. The patient received UCBT with a conditioning regimen consisting of total body irradiation, cytarabine, and cyclophosphamide. She remains in remission 30 months after UCBT and the HTLV-1 proviral load has fallen to undetectable levels. This result suggests that UCBT should be a therapeutic option for ATL patients who do not have suitable donors and those who urgently require treatment.
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http://dx.doi.org/10.1002/ajh.21042 | DOI Listing |
Nat Med
January 2025
Department of Hematology, University Hospital of Rennes, UMR U1236, INSERM, University of Rennes, French Blood Establishment, Rennes, France.
The risk of T cell malignancies after chimeric antigen receptor (CAR) T cell therapy is a concern, although the true incidence remains unclear. Here we analyzed the DESCAR-T registry database, encompassing all pediatric and adult patients with hematologic malignancies who received CAR T cell therapy in France since 1 July 2018. Of the 3,066 patients included (2,536 B cell lymphoma, 162 B cell acute lymphoblastic leukemia (ALL) and 368 multiple myeloma), 1,680 (54.
View Article and Find Full Text PDFMol Oncol
January 2025
Division of Foundational Sciences, Mike Petryk School of Dentistry, University of Alberta, Edmonton, Canada.
CD8 T cells, a subset of T cells identified by the surface glycoprotein CD8, particularly those expressing the co-stimulatory molecule CD226, play a crucial role in the immune response to malignancies. However, their role in chronic lymphocytic leukemia (CLL), an immunosuppressive disease, has not yet been explored. We studied 64 CLL patients and 25 age- and sex-matched healthy controls (HCs).
View Article and Find Full Text PDFLeuk Lymphoma
January 2025
Lymphoma Service - The Alfred Hospital, Melbourne, Victoria, Australia.
Prognostic assessment in chronic lymphocytic leukemia (CLL) is essential for delivery of timely, personalized therapy. status, karyotype, IGHV mutational status, minimal residual disease (MRD), gene mutations and markers of cell proliferation were important prognostic tools in the era of chemo-immunotherapy (CIT). With BCL2 inhibitors (BCL2i), outcome is still impacted by IGHV status, status, complex karyotype, and achievement of undetectable MRD.
View Article and Find Full Text PDFViruses
November 2024
Laboratório Avançado de Saúde Pública, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (Fiocruz-BA), Salvador 40296-710, Bahia, Brazil.
Human T-cell leukemia virus type 1 (HTLV-1) is associated with an increased risk of tuberculosis (TB). This study aimed to evaluate the performance of the QuantiFERON-TB Gold (QFT) test for the diagnosis of (MTB) infection in HTLV-1-infected individuals. HTLV-1-infected participants were divided into four groups: HTLV-1-infected individuals with a history of tuberculosis (HTLV/TB), individuals with positive HTLV and tuberculin skin tests (HTLV/TST+) or negative TST (HTLV/TST-), and HTLV-1-negative individuals with positive TST results (HN/TST+).
View Article and Find Full Text PDFVaccines (Basel)
November 2024
Department of R&D, Shanghai HRAIN Biotechnology Co., Ltd., 1238 Zhangjiang Road, Pudong, Shanghai 201210, China.
The emergence of chimeric antigen receptor T-cell (CAR-T) immunotherapy holds great promise in treating hematologic malignancies. While advancements in CAR design have enhanced therapeutic efficacy, the time-consuming manufacturing process has not been improved in the commercial production of CAR-T cells. In this study, we developed a "DASH CAR-T" process to manufacture CAR-T cells in 72 h and found the excelling anti-tumor efficacy of DASH CAR-T cells over conventionally manufactured CAR-T cells.
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