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19.01.2017 | Original Article | Ausgabe 3/2017 Open Access

Immunologic Research 3/2017

The distribution and function of human memory T cell subsets in lung cancer

Zeitschrift:
Immunologic Research > Ausgabe 3/2017
Autoren:
Si Yuan Sheng, Yong Gu, Chuan Gang Lu, Jian Yong Zou, Hai Hong, RongFu Wang
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s12026-016-8882-y) contains supplementary material, which is available to authorized users.
Si Yuan Sheng and Yong Gu are co-first author.

Abstract

The distribution and function of T lymphocytes in human lung cancer remain limited. In this study, we investigated the properties of human T cell subsets in the blood of non-small cell lung cancer (NSCLC) patients. We found a relatively normal level of CD4+ subsets in the blood of NSCLC patients, but CD8+ effector T cells increased and CD8+ effector memory cells declined compared to the healthy donors. To further analyze their properties, we stimulated the peripheral blood mononuclear cells (PBMCs) of NSCLC patients by mitogens to examine cytokine production. Our data suggest that both CD4+ and CD8+ naïve cells in NSCLC patients significantly reduced IFN-γ and TNF-α production. Additionally, fewer CD8+ effector cells produced IFN-γ and TNF-α in NSCLC patients than in healthy subjects. Moreover, similar results were observed for CD4+ or CD8+ memory cells in NSCLC patients for the production of IFN-γ, TNF-α, and IL-17. Therefore, our results strongly suggest that the function of CD4+ and CD8+ T lymphocytes in NSCLC patients is compromised or dysregulated. The development of vaccines and antitumor immunotherapy may be essential for the treatment of lung cancer patients.

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