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• W2158199059 abstract "Damage to T cells of the immune system by reactive oxygen species may result in altered cell function or cell death and thereby potentially impact upon the efficacy of a subsequent immune response. Here, we assess the impact of the antioxidants Ebselen and N-acetyl cysteine on a range of biological markers in human T cells derived from a SENIEUR status donor. In addition, the impact of these antioxidants on different MAP kinase pathways in T cells from donors of different ages was also examined. T cell clones were derived from healthy 26, 45 and SENIEUR status 80 year old people and the impact of titrated concentrations of Ebselen or N-acetyl cysteine on their proliferation and in vitro lifespan, GSH:GSSG ratio as well as levels of oxidative DNA damage and on MAP kinase signaling pathways was examined. In this investigation neither Ebselen nor N-acetyl cysteine supplementation had any impact on the biological endpoints examined in the T cells derived from the SENIEUR status 80 year old donor. This is in contrast to the anti-immunosenescent effects of these antioxidants on T cells from donors of 26 or 45 years of age. The analysis of MAP kinases showed that pro-apoptotic pathways become activated in T cells with increasing in vitro age and that Ebselen or N-acetyl cysteine could decrease activation (phosphorylation) in T cells from 26 or 45 year old donors, but not from the SENIEUR status 80 year old donor. The results of this investigation demonstrate that the biological phenotype of SENIEUR status derived human T cells negates the anti-immunosenescence effects of Ebselen and also N-acetyl cysteine. The results highlight the importance of pre-antioxidant intervention evaluation to determine risk-benefit." @default.
• W2158199059 created "2016-06-24" @default.
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• W2158199059 date "2014-11-30" @default.
• W2158199059 modified "2023-10-10" @default.
• W2158199059 title "SENIEUR status of the originating cell donor negates certain ‘anti-immunosenescence’ effects of ebselen and N-acetyl cysteine in human T cell clone cultures" @default.
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• W2158199059 doi "https://doi.org/10.1186/s12979-014-0017-5" @default.
• W2158199059 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4263119" @default.
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• W2158199059 hasPublicationYear "2014" @default.
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