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- W3048768092 abstract "Infections caused by drug-resistant pathogens are a worldwide challenge for public health. Antimicrobial peptides (AMPs) are regarded as promising antibiotic alternatives for the treatment of drug-resistant infections. In the present study, a series of small peptides were designed based on our previously reported sea snake AMP Hc-CATH. From them, the lead peptide HC1-D2, a truncated peptide entirely substituted by d-amino acids, was selected. HC1-D2 exhibited significantly improved stability and antibiofilm and anti-inflammatory activities. Meanwhile, HC1-D2 retained potent, broad-spectrum, and rapid antimicrobial properties against bacteria and fungi, especially drug-resistant bacteria. Moreover, HC1-D2 showed low propensity to induce bacterial resistance and low cytotoxicity and hemolytic activity. Notably, HC1-D2 showed potent in vivo anti-infective ability in mouse peritonitis models infected by both standard and drug-resistant bacteria. It significantly decreased the bacterial counts in the abdominal cavity and spleen of mice and apparently increased the survival rates of the mice. Acting through the MAPKs inflammatory pathway, HC1-D2 selectively induced the production of chemokine and the subsequent immune cell recruitment to the infection site, while inhibiting the production of pro-inflammatory cytokines with undesirable toxicities. These much improved properties make HC1-D2 a promising candidate for the development of novel peptide anti-infective agents against drug-resistant infections." @default.
- W3048768092 created "2020-08-18" @default.
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- W3048768092 date "2020-08-12" @default.
- W3048768092 modified "2023-10-14" @default.
- W3048768092 title "Design of a Sea Snake Antimicrobial Peptide Derivative with Therapeutic Potential against Drug-Resistant Bacterial Infection" @default.
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- W3048768092 doi "https://doi.org/10.1021/acsinfecdis.0c00255" @default.
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