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  • Open Access

    ARTICLE

    PD-1+ and TIM-3+ T cells widely express common γ-chain cytokine receptors in multiple myeloma patients, and IL-2, IL-7, IL-15 stimulation up-regulates PD-1 and TIM-3 on T cells

    EGOR V. BATOROV1,2,*, ALISA D. INESHINA2, TATIANA A. ARISTOVA3, VERA V. DENISOVA3, SVETLANA A. SIZIKOVA3, DARIA S. BATOROVA3, GALINA Y. USHAKOVA3, EKATERINA Y. SHEVELA1, ELENA R. CHERNYKH1

    Oncology Research, Vol.32, No.10, pp. 1575-1587, 2024, DOI:10.32604/or.2024.047893 - 18 September 2024

    Abstract Background: Immune checkpoint ligand-receptor interactions appear to be associated with multiple myeloma (MM) progression. Simultaneously, previous studies showed the possibility of PD-1 and TIM-3 expression on T cells upon stimulation with common γ-chain family cytokines in vitro and during homeostatic proliferation. The aim of the present work was to study the impact of homeostatic proliferation on the expansion of certain T cell subsets up-regulating PD-1 and TIM-3 checkpoint molecules. Methods: The expression of CD25, CD122, CD127 common γ-chain cytokine receptors, phosphorylated signal transducer and activator of transcription-5 (pSTAT5) and eomesodermin (EOMES) was comparatively assessed with flow… More >

  • Open Access

    ARTICLE

    Direct effects of interleukin-7 on the function of human T cells in vitro

    Vyacheslav A. Shmarov, Vladimir V. Malashchenko, Maksim E. Meniailo, Natalia D. Gazatova, Natalia M. Todosenko, Olga B. Melashchenko, Andrei G. Goncharov, Victor I. Seledtsov

    European Cytokine Network, Vol.27, No.4, pp. 102-107, 2016, DOI:10.1684/ecn.2016.0385

    Abstract CD3+ T lymphocytes were isolated by positive magnetic separation from the peripheral blood of healthy donors. In the absence of any additional activating stimuli, interleukin-7 (IL-7) was shown to augment the levels of T cells expressing CD25 activation marker both in CD4-positive and in CD4-negative effector memory (CD45RA-CD197-) T cell subsets, as well as in terminally differentiated (CD45RA+CD197-) T cells, without significantly affecting the activation status of naive (CD45RA+CD197+) and central memory (CD45RA-CD197+) T cells. In addition, IL-7 noticeably enhanced the production of IL-2, interferon-γ (IFN-γ), and IL-10, but not IL-4, in T cells. The direct effects… More >

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