國家衛生研究院 NHRI:Item 3990099045/11277

NHRI > National Institute of Infectious Diseases and Vaccinology > Shu-Chen Kuo > Periodical Articles > Item 3990099045/11277

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/11277

Title:	Adding a C-terminal Cysteine (CTC) can enhance the bactericidal activity of three different Antimicrobial Peptides
Authors:	Chen, HL;Su, PY;Kuo, SC;Lauderdale, TLY;Shih, C
Contributors:	National Institute of Infectious Diseases and Vaccinology
Abstract:	The emergence of antibiotic-resistant bacteria has threatened our health worldwide. There is an urgent need for novel antibiotics. Previously, we identified a novel 37-mer antimicrobial peptide (AMP), HBcARD, with broad spectrum antimicrobial activity. Here, we improved the efficacy of HBcARD, by re-engineering the peptide, including the addition of a new cysteine to its C-terminus (CTC). The new 28-mer derivative, D-150-177C, contains all D-form arginines, in addition to a C-terminal cycteine. This peptide can kill antibiotic-resistant clinical isolates of Gram-negative bacteria, and is more potent than the parental HBcARD peptide in a mouse sepsis model. In another lung infection mouse model, D-150-177C showed protection efficacy against colistin-resistant Acinetobacter baumannii. Unlike colistin, we observed no acute toxicity of D-150-177C in vivo. Interestingly, we found that CTC modification could enhance the antibacterial activity of several other AMPs, such as buforinll and lysin. The potential application and mechanism of this CTC method as a general approach to improving drug efficacy, warrants further investigation in the future.
Date:	2018-06
Relation:	Frontiers in Microbiology. 2018 Jun;9:Article number 1440.
Link to:	http://dx.doi.org/10.3389/fmicb.2018.01440
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1664-302X&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000436578900001
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85049262165
Appears in Collections:	[Shu-Chen Kuo] Periodical Articles [Tsai-Ling Yang Lauderdale] Periodical Articles

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