ArticleTranslational cancer research2020
Immunomodulatory features of radiotherapy in lung carcinoma.
Article in Translational cancer research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 2 citations in OpenAlex.
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7 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAs a standard treatment modality, radiotherapy (RT) has been widely employed for cancer treatment. In addition to directly killing tumor cells, RT is known for its immunomodulatory effects. Nevertheless, the effects of ionizing radiation on immune reactions, as well as their underpinning mechanisms, are complex and remain unclear.
methodsThe immunomodulatory effects of ionizing irradiation were dynamically monitored by concomitant assessment of peripheral blood lymphocytes, and Th1 (CD3+CD4+IFN-r+), Th2 (CD3+CD4+IL-4+), Tc1 (CD3+CD8+IFN-r+) and Tc2 (CD3+CD8+IL-4+) cells, along with CD25, CD28, CTLA-4, PD-1, Foxp3, TGF-β, and IL-10 gene expression levels in 30 lung cancer patients who underwent RT.
resultsLocal cancer RT activated cellular immune reactions, which was reflected by an obvious reduction of B cells and increased CD8 and NK cell amounts, and consequent increase of suppressor T cells (Ts). Further investigation showed that Th2 and Tc2 responses were significantly increased while Th1 and Tc1 were decreased.
conclusionsThe immunomodulatory effects mediated by RT are characterized by a shift from humoral to cellular immunity, significant augmentation of CD8 and Ts subpopulation, and Th2 and Tc2 responses, indicating an immuno-activating response, which might be beneficial for initial antitumor immune reactions, but may not affect the later ones. Immunomodulatory therapy should be performed upon RT to restore the immune balance for maintaining a Th1/Tc1 dominant immunity to achieve long-term anticancer immunity.
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