Staphylococcus aureus(S.aureus)are frequently encountered for both nosocomial infections and community acquired infections,with special concerns on the quick emergence of methicillin resistant S.aureus(MRSA)[1,2].Anti...Staphylococcus aureus(S.aureus)are frequently encountered for both nosocomial infections and community acquired infections,with special concerns on the quick emergence of methicillin resistant S.aureus(MRSA)[1,2].Antibiotics are used extensively to treat these infections[2].However,antimicrobial resistance has been a tremendous challenge against current antibiotic and calls for urgent actions to explore novel antimicrobial agents that are active against MRSA and are less susceptible to antimicrobial resistance than do conventional antibiotics[3–13].Encouraged by the low propensity for microbes to develop antimicrobial resistance,host defense peptides(HDPs)and their synthetic mimics were actively studied[3,4,14–34].Although peptidyl mimics of HDP have variable structures,many of them involved multiple copies ofα-L-lysine to introduce into the molecules positive charges that were critical for the antimicrobial activity[35,36].展开更多
基金supported by the National Natural Science Foundation of China (21574038 and 21774031)the National Natural Science Foundation of China for Innovative Research Groups (51621002)+6 种基金the National Key Research and Development Program of China (2016YFC1100401)the Natural Science Foundation of Shanghai (18ZR1410300)the "Eastern Scholar Professorship" from Shanghai local government (TP2014034)the national special fund for State Key Laboratory of Bioreactor Engineering (2060204)the 1000 Talent Young Scholar program in China111 project (B14018)the program for professor of special appointment at ECUST
文摘Staphylococcus aureus(S.aureus)are frequently encountered for both nosocomial infections and community acquired infections,with special concerns on the quick emergence of methicillin resistant S.aureus(MRSA)[1,2].Antibiotics are used extensively to treat these infections[2].However,antimicrobial resistance has been a tremendous challenge against current antibiotic and calls for urgent actions to explore novel antimicrobial agents that are active against MRSA and are less susceptible to antimicrobial resistance than do conventional antibiotics[3–13].Encouraged by the low propensity for microbes to develop antimicrobial resistance,host defense peptides(HDPs)and their synthetic mimics were actively studied[3,4,14–34].Although peptidyl mimics of HDP have variable structures,many of them involved multiple copies ofα-L-lysine to introduce into the molecules positive charges that were critical for the antimicrobial activity[35,36].