Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 46, Pages 13644-13649Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201507567
Keywords
antibiotics; bacterial resistance; drugs design; multidrug-resistant bacteria; vancomycin
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Funding
- Department of Science and Technology (DST), Government of India
- CSIR
- Sheikh Saqr laboratory at JNCASR
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Resistance to glycopeptide antibiotics, the drugs of choice for life-threatening bacterial infections, is on the rise. In order to counter the threat of glycopeptide-resistant bacteria, we report development of a new class of semi-synthetic glycopeptide antibiotics, which not only target the bacterial membrane but also display enhanced inhibition of cell-wall biosynthesis through increased binding affinity to their target peptides. The combined effect of these two mechanisms resulted in improved invitro activity of two to three orders of magnitude over vancomycin and no propensity to trigger drug resistance in bacteria. In murine model of kidney infection, the optimized compound was able to bring bacterial burden down by about 6 logs at 12mgkg(-1) with no observed toxicity. The results furnished in this report emphasize the potential of this class of compounds as future antibiotics for drug-resistant Gram-positive infections.
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