Abstract
Spontaneously generated mutant T cells defective in T-cell receptor (TCR) gene expression are detectable at the frequency of 2×10−4 in vivo, and the mutant fractions are dose dependently increased by exposure to genotoxic agents such as ionizing radiation. Mutant cells with altered expression of TCRα or -β among CD4+ T cells can be detected as CD3−/CD4+ cells by two-color flow cytometry using anti-CD3 and anti-CD4 monoclonal antibodies labeled with different fluorescent dyes, because incomplete TCRαβ/CD3 complexes cannot be transported to the cellular membrane. This flow cytometric mutation assay can be applied to CD4+ T cells from human peripheral blood and mouse spleen. Methods for both preparation of target cells and detection of the mutant cells are described.
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Acknowledgements
The authors would like to acknowledge M. Yamaoka and K. Koyama for excellent technical help and C. A. Waldren for valuable suggestions.
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Kyoizumi, S., Kusunoki, Y., Hayashi, T. (2014). Flow Cytometric Quantification of Mutant T Cells with Altered Expression of the T-Cell Receptor: Detecting Somatic Mutants in Humans and Mice. In: Keohavong, P., Grant, S. (eds) Molecular Toxicology Protocols. Methods in Molecular Biology, vol 1105. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-739-6_19
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DOI: https://doi.org/10.1007/978-1-62703-739-6_19
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