Investigations to the Antibacterial Mechanism of Action of Kendomycin

PloS One
Yasser A ElnakadyRolf Müller

Abstract

The emergence of bacteria that are resistant to many currently used drugs emphasizes the need to discover and develop new antibiotics that are effective against such multi-resistant strains. Kendomycin is a novel polyketide that has a unique quinone methide ansa structure and various biological properties. This compound exhibits strong antibacterial activity against Gram-negative and Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). Despite the promise of kendomycinin in several therapeutic areas, its mode of action has yet to be identified. In this study, we used a multidisciplinary approach to gain insight into the antibacterial mechanism of this compound. The antibacterial activity of kendomycin appears to be bacteriostatic rather than bactericidal. Kendomycin inhibited the growth of the MRSA strain COL at a low concentration (MIC of 5 μg/mL). Proteomic analysis and gene transcription profiling of kendomycin-treated cells indicated that this compound affected the regulation of numerous proteins and genes involved in central metabolic pathways, such as the tricarboxylic acid (TCA) cycle (SdhA) and gluconeogenesis (PckA and GapB), cell wall biosynthesis and cell division (FtsA, FtsZ, and Mur...Continue Reading

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Jun 5, 2019·International Journal of Molecular Sciences·Puleng Rosinah SyedKhajamohiddin Syed
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Methods Mentioned

BETA
electrophoresis
electron microscopy
scanning electron microscopy
reverse transcription-PCR
PCR

Software Mentioned

DeCyder

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