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Research Article: High-mobility group protein B1 derived mutant peptide mB Box-97 inhibits the formation of neutrophil extracellular traps

Date Published: 2025-04-22

Abstract:
Introduction: Neutrophil Extracellular Traps (NETs) are vital for innate immunity, playing a key role in controlling pathogen and biofilm proliferation. However, excessive NETosis is implicated in autoimmunity, inflammatory and neoplastic diseases, as well as thrombosis, stroke, and post-COVID-19 complications. Managing NETosis, therefore is a significant area of ongoing research. Herein, we have identified a peptide derived from HMGB1 that we have modified via a point mutation that is referred to as mB Box-97. In our recent study in a murine lung infection model, mB Box-97 was shown to be safe and effective at disrupting biofilms without eliciting an inflammatory response typically associated with HMGB1. Here we show that the lack of an inflammatory response of mB Box-97 is in part due to the inhibition of NETosis of which we investigated the mechanism of action.

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