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- W4386156558 abstract "Microbial infection is characterized by release of multiple proinflammatory chemokines that direct neutrophils to the insult site. How collective function of these chemokines orchestrates neutrophil recruitment is not known. Here, we characterized the role for heterodimer, and show that the Cxcl1-Cxcl2 heterodimer is a potent neutrophil chemoattractant in mice and can recruit more neutrophils than the individual chemokines. Chemokine-mediated neutrophil recruitment is determined by Cxcr2 receptor signaling, Cxcr2 endocytosis, and binding to glycosaminoglycans (GAGs). We have now determined heterodimer's Cxcr2 activity using cellular assays and Cxcr2 density in blood and recruited neutrophils in heterodimer-treated mice. We have shown that the heterodimer binds GAGs with higher affinity and more efficiently than Cxcl1 or Cxcl2. These data collectively indicate that optimal GAG interactions and dampened receptor activity acting in concert in a dynamic fashion promote heterodimer-mediated robust neutrophil recruitment. We propose that this could play a critical role in combating infection." @default.
- W4386156558 created "2023-08-26" @default.
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- W4386156558 date "2023-08-25" @default.
- W4386156558 modified "2023-10-14" @default.
- W4386156558 title "Chemokine Cxcl1-Cxcl2 heterodimer is a potent neutrophil chemoattractant" @default.
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- W4386156558 doi "https://doi.org/10.1093/jleuko/qiad097" @default.
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- W4386156558 hasPublicationYear "2023" @default.
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