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Updated: Dec 6, 2025

Cell-based Flow Cytometry Assay to Measure Cytotoxic Activity
Published on: December 17, 2013
Flow Cytometry Evaluation of Gap Junction-Mediated Intercellular Communication Between Cytotoxic T Cells and Target
Mariela Navarrete1,2, Flavio Salazar-Onfray1,2, Andrés Tittarelli3
1Millennium Institute on Immunology and Immunotherapy, Faculty of Medicine, Universidad de Chile, Santiago, Chile.
Abstract:
Gap junctions (GJs) are clusters of intercellular connexin-formed channels found at the plasma membrane that allow direct communication between the cytoplasm of adjacent cells. Numerous reports have described GJs as modulators of key immunological processes, including in anti-tumor immune responses. Here, we described a simple flow cytometry method to test in vitro antigen-dependent GJ-mediated cell-to-cell coupling between cytotoxic T cells and target melanoma cells.
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