Detailed Information on Publication Record
2023
Expansions of tumor-reactive Vdelta1 gamma-delta T cells in newly diagnosed patients with chronic myeloid leukemia
KNIGHT, Andrea, Martin PISKÁČEK, Michal JURAJDA, Jiřina PROCHÁZKOVÁ, Zdeněk RÁČIL et. al.Basic information
Original name
Expansions of tumor-reactive Vdelta1 gamma-delta T cells in newly diagnosed patients with chronic myeloid leukemia
Authors
KNIGHT, Andrea (203 Czech Republic, guarantor, belonging to the institution), Martin PISKÁČEK (40 Austria, belonging to the institution), Michal JURAJDA (203 Czech Republic, belonging to the institution), Jiřina PROCHÁZKOVÁ (203 Czech Republic, belonging to the institution), Zdeněk RÁČIL (203 Czech Republic), Daniela ŽÁČKOVÁ (203 Czech Republic, belonging to the institution) and Jiří MAYER (203 Czech Republic, belonging to the institution)
Edition
Cancer immunology, immunotherapy, NEW YORK, SPRINGER, 2023, 0340-7004
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30204 Oncology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.800 in 2022
RIV identification code
RIV/00216224:14110/23:00130077
Organization unit
Faculty of Medicine
UT WoS
000884524700001
Keywords in English
Gamma-delta T cells; Chronic myeloid leukemia; Tumor immunotherapy; Clonality
Tags
International impact, Reviewed
Změněno: 26/1/2024 10:20, Mgr. Tereza Miškechová
Abstract
V originále
Recent studies have underscored the importance of gamma-delta (γδ) T cells in mediating potent MHC-unrestricted cytotoxicity in numerous malignancies. Here, we analyzed Vδ1 and Vδ2 γδ T cell subsets in newly diagnosed chronic myeloid leukemia (CML) patients (n = 40) who had initiated tyrosine kinase inhibitor (TKI) therapy including imatinib (n = 22), nilotinib (n = 14) and dasatinib (n = 4). Patient peripheral blood samples were analyzed at diagnosis and monitored prospectively at 3, 6, 12 and 18 months post-TKI. γδ T cells isolated from healthy donors and CML patients were used against K562, LAMA-84 and KYO-1 cell lines and against primary CML cells in cytotoxicity assays. We found large expansions of Vδ1 and Vδ2 T cells in patients at diagnosis compared to age-matched healthy donors (n = 40) (p < 0.0001). The γδ T cell reconstitution in patients on imatinib and also on nilotinib showed significant reductions of Vδ1 T cell and Vδ2 T cell absolute counts at 3 months compared to diagnosis. Importantly, Vδ1 and Vδ2 T absolute cell counts remained at normal levels from 3 months throughout the follow-up. Next, we observed susceptibility to specific lysis of primary CML tumor cells by Vδ1 T cells from healthy donors. Furthermore, we determined inherent cytotoxic reactivity by autologous patients’ Vδ1 T lymphocytes against primary CML tumor cells. Finally, the TCR clonality profiles showed in CML patients mostly polyclonal repertoires regardless of the TKI. Our results provide further evidence into γδ T cell antileukemia immunity in CML that might be beneficial for long-term disease control and treatment outcome.
Links
NV19-05-00410, research and development project |
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