The mucosa-associated invariant T (MAIT) cells represent the most abundant population of antimicrobial T cells in humans. When encountering cells infected with riboflavin-producing bacteria, this innate-like T cell population rapidly release a plethora of pro-inflammatory cytokines, mediates antimicrobial activity, and kill infected cells. Here, we describe methodological approaches and protocols to measure their cytotoxicity and antimicrobial effector function using multi-color flow cytometry-based and standard microbiological techniques. We provide specific guidance on protocols and describe potential pitfalls for each of the presented methodologies. Finally, we discuss potential applications and current limitations of our approaches to the study of human MAIT cell antimicrobial properties.
CITATION STYLE
Sia, W. R., Boulouis, C., Gulam, M. Y., Kwa, A. L. H., Sandberg, J. K., & Leeansyah, E. (2020). Quantification of Human MAIT Cell-Mediated Cellular Cytotoxicity and Antimicrobial Activity. In Methods in Molecular Biology (Vol. 2098, pp. 149–165). Humana Press Inc. https://doi.org/10.1007/978-1-0716-0207-2_10
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