Abstract
Benzothiazole-urea hybrid 8l was found to be a potent anti-bacterial agent against methicillin-resistant Staphylococcus aureus (MRSA2858) (MIC = 0.78 μM, Eur J Med Chem. 2022,236:114333). Herein, 8l was further evaluated to remedy the MRSA-infected scald with bacterial infection and severe inflammation. In scalded skin model with MRSA infection, 8l not only effectively reduced bacterial load, but also decreased pro-inflammatory cytokines secretion and promoted collagen deposition to effectively reverse the progression of wound infection and inflammation by blocking cGAS/STING/NF-κB/IRF3 signaling pathway. In vitro model of RAW264.7 cells verified that 8l can inhibit MRSA-induced inflammation via regulating this pathway. All in all, dual anti-bacterial and anti-inflammatory agent 8l could heal MRSA-infected refractory scald by regulating cGAS/STING/NF-κB/IRF3 pathway.
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