PEGylation of a glycosaminoglycan-binding, dominant-negative CXCL8 mutant retains bioactivity in vitro and in vivo.

Abstract excerpt

We have recently shown that a dominant-negative mutant of CXCL8, dnCXCL8, with increased glycosaminoglycan (GAG) binding affinity and inactivated GPCR signaling function is able to efficiently prevent neutrophil infiltration into murine lungs (Adage et al., 2015). Here we present evidence that chemical PEGylation of dnCXCL8 with 20 kDa and 40 kDa PEG does not significantly interfere with GAG binding affinity, nor...

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