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.Základní údaje
Originální název
Expansions of tumor-reactive Vdelta1 gamma-delta T cells in newly diagnosed patients with chronic myeloid leukemia
Autoři
KNIGHT, Andrea (203 Česká republika, garant, domácí), Martin PISKÁČEK (40 Rakousko, domácí), Michal JURAJDA (203 Česká republika, domácí), Jiřina PROCHÁZKOVÁ (203 Česká republika, domácí), Zdeněk RÁČIL (203 Česká republika), Daniela ŽÁČKOVÁ (203 Česká republika, domácí) a Jiří MAYER (203 Česká republika, domácí)
Vydání
Cancer immunology, immunotherapy, NEW YORK, SPRINGER, 2023, 0340-7004
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30204 Oncology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.800 v roce 2022
Kód RIV
RIV/00216224:14110/23:00130077
Organizační jednotka
Lékařská fakulta
UT WoS
000884524700001
Klíčová slova anglicky
Gamma-delta T cells; Chronic myeloid leukemia; Tumor immunotherapy; Clonality
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 26. 1. 2024 10:20, Mgr. Tereza Miškechová
Anotace
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.
Návaznosti
NV19-05-00410, projekt VaV |
|