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According to in vitro assays, T cells are thought to kill rapidly and efficiently, but the efficacy and dynamics of cytotoxic T lymphocyte (CTL)-mediated killing of virus-infected cells in vivo remains elusive. We used two-photon microscopy to quantify CTL-mediated killing in mice infected with herpesviruses or poxviruses. On average, one CTL killed 2–16 virus-infected cells per day as determined...
Chemokine receptors are known to signal through heterotrimeric G proteins. In this issue, Hauser et al. (2016) report that inflammatory cues can induce tetramers of the chemokine receptor CCR7 that serve as scaffolds integrating G protein with Src kinase signaling.
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