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- W4308200450 abstract "Cytotoxic T lymphocytes (CTLs) use immune synapses to destroy infected or transformed target cells. Although the mechanisms governing synapse assembly have been studied extensively, little is known about how this interface dissociates, which is a critical step that both frees the CTL to search for additional prey and enables the phagocytosis of target corpses. Here, we applied time-lapse imaging to explore the basis for synapse dissolution and found that it occurred concomitantly with the cytoskeletal contraction of apoptotic targets. Genetic and pharmacological disruption of apoptotic contraction indicated that it was necessary for CTL dissociation. Furthermore, acute stimulation of contractile forces triggered the release of live targets, demonstrating that contraction is sufficient to drive the response. Finally, mechanically amplifying apoptotic contractility promoted faster CTL detachment and serial killing. Collectively, these results establish a biophysical basis for synapse dissolution and highlight the importance of mechanosensory feedback in the regulation of cell-cell interactions." @default.
- W4308200450 created "2022-11-09" @default.
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- W4308200450 date "2022-11-04" @default.
- W4308200450 modified "2023-10-15" @default.
- W4308200450 title "Apoptotic contraction drives target cell release by cytotoxic T cells" @default.
- W4308200450 doi "https://doi.org/10.1101/2022.11.02.514865" @default.
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