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Single-cell analysis of the dynamics and functional outcomes of interactions between human natural killer cells and target cells

Author(s)
Berger, Christoph T.; Sips, Magdalena; Cheney, Patrick C.; Alter, Galit; Yamanaka, Yvonne J.; Love, John C; ... Show more Show less
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Abstract
Natural killer (NK) cells are a subset of innate immune lymphocytes that interrogate potential target cells and rapidly respond by lysing them or secreting inflammatory immunomodulators. Productive interactions between NK cells and targets such as tumor cells or virally infected cells are critical for immunological control of malignancies and infections. For individual NK cells, however, the relationship between the characteristics of these cell–cell interactions, cytolysis, and secretory activity is not well understood. Here, we used arrays of subnanoliter wells (nanowells) to monitor individual NK cell–target cell interactions and quantify the resulting cytolytic and secretory responses. We show that NK cells operate independently when lysing a single target cell and that lysis is most probable during an NK cell's first encounter with a target. Furthermore, we demonstrate that the secretion of interferon-γ (IFN-γ) occurs most often among NK cells that become the least motile upon contacting a target cell but is largely independent of cytolysis. Our findings demonstrate that integrated analysis of the cell–cell interaction parameters, cytolytic activity, and secretory activity of single NK cells can reveal new insights into how these complex functions are related within individual cells.
Date issued
2012-08
URI
http://hdl.handle.net/1721.1/79616
Department
Massachusetts Institute of Technology. Department of Biological Engineering; Massachusetts Institute of Technology. Department of Chemical Engineering; Ragon Institute of MGH, MIT and Harvard; Koch Institute for Integrative Cancer Research at MIT
Journal
Integrative Biology
Publisher
Royal Society of Chemistry
Citation
Yamanaka, Yvonne J., Christoph T. Berger, Magdalena Sips, et al. 2012 Single-cell Analysis of the Dynamics and Functional Outcomes of Interactions Between Human Natural Killer Cells and Target Cells. Integrative Biology 4(10): 1175.
Version: Author's final manuscript
ISSN
1757-9694
1757-9708

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