Barcoding T Cell Calcium Response Diversity with Methods for Automated and Accurate Analysis of Cell Signals (MAAACS)

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Salles, Audrey | Billaudeau, Cyrille | Sergé, Arnauld | Bernard, Anne-Marie | Phélipot, Marie-Claire | Bertaux, Nicolas | Fallet, Mathieu | Grenot, Pierre | Marguet, Didier | He, Hai-Tao | Hamon, Yannick

Edité par CCSD ; PLOS -

International audience. We introduce a series of experimental procedures enabling sensitive calcium monitoring in T cell populations by confocal video-microscopy. Tracking and post-acquisition analysis was performed using Methods for Automated and Accurate Analysis of Cell Signals (MAAACS), a fully customized program that associates a high throughput tracking algorithm, an intuitive reconnection routine and a statistical platform to provide, at a glance, the calcium barcode of a population of individual T-cells. Combined with a sensitive calcium probe, this method allowed us to unravel the heterogeneity in shape and intensity of the calcium response in T cell populations and especially in naive T cells, which display intracellular calcium oscillations upon stimulation by antigen presenting cells.

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