Membrane-Active Cyclic Amphiphilic Peptides: Broad-Spectrum Antibacterial Activity Alone and in Combination with Antibiotics.
Membrane-Active Cyclic Amphiphilic Peptides: Broad-Spectrum Antibacterial Activity Alone and in Combination with Antibiotics.
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DOI:
10.1021/acs.jmedchem.2c01469
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发表时间:
2022-12-08
影响因子:
7.3
通讯作者:
Parang K
中科院分区:
文献类型:
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作者:
Mohammed EHM;Lohan S;Ghaffari T;Gupta S;Tiwari RK;Parang K
We designed a library of 24 cyclic peptides containing arginine (R) and tryptophan (W) residues in a sequential manner [RnWn] (n = 2–7) to study the impact of the hydrophilic/hydrophobic ratio, charge, and ring size on the antibacterial activity against Gram-positive and Gram-negative strains. Among peptides, 5a and 6a demonstrated the highest antimicrobial activity. In combination with 11 commercially available antibiotics, 5a and 6a showed remarkable synergism against a large panel of resistant pathogens. Hemolysis (HC50 = 340 μg/mL) and cell viability against mammalian cells demonstrated the selective lethal action of 5a against bacteria over mammalian cells. Calcein dye leakage and scanning electron microscopy studies revealed the membranolytic effect of 5a. Moreover, the stability in human plasma (t1/2 = 3 h) and the negligible ability of pathogens to develop resistance further reflect the potential of 5a for further development as a peptide-based antibiotic.
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影响因子:
5.7
作者:
Coates, Anthony R. M.;Hu, Yanmin;Yeh, Pamela
通讯作者:
Yeh, Pamela
影响因子:
2.9
作者:
BLONDELLE, SE;HOUGHTEN, RA
通讯作者:
HOUGHTEN, RA
影响因子:
5.2
作者:
Guilhelmelli F;Vilela N;Albuquerque P;Derengowski Lda S;Silva-Pereira I;Kyaw CM
通讯作者:
Kyaw CM
DOI:
10.5114/aoms.2016.59838
发表时间:
2016-12-01
期刊:
Archives of medical science : AMS
影响因子:
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作者:
Tatarkiewicz J;Staniszewska A;Bujalska-Zadrożny M
通讯作者:
Bujalska-Zadrożny M
DOI:
10.3390/antibiotics11081082
发表时间:
2022-08-09
期刊:
Antibiotics (Basel, Switzerland)
影响因子:
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作者:
通讯作者:
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