S100A8 and S100A9 are cytosolic alarmins with autocrine functions that facilitate neutrophil recruitment. Rapid, transient gasdermin-D pore formation is now shown to mediate secretion of these proteins in response to E-selectin without driving pyroptosis.
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The author is supported by US Public Health Service grants R01HL088256, P01HL152958 and R01DK110162.
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Catz, S.D. Divergent mechanisms of inflammasome activation in neutrophil early response and inflammation. Nat Immunol 24, 1970–1971 (2023). https://doi.org/10.1038/s41590-023-01684-x
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DOI: https://doi.org/10.1038/s41590-023-01684-x