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Article Publish Status: FREE
Abstract Title:

Antibacterial Activity and Membrane-Targeting Mechanism of Aloe-Emodin Against.

Abstract Source:

Front Microbiol. 2021 ;12:621866. Epub 2021 Aug 16. PMID: 34484130

Abstract Author(s):

Tao Li, Yan Lu, Hua Zhang, Lei Wang, Ross C Beier, Yajie Jin, Wenjing Wang, Huanrong Li, Xiaolin Hou

Article Affiliation:

Tao Li

Abstract:

The emergence of multidrug-resistant Staphylococcus epidermidis (the current antibiotic development and calls for the discovery of new antibacterial agents. Aloe-emodin is a plant-derived compound that holds promise to battle against these strains. This work reports the antimicrobial activity of aloe-emodin againstand other Gram-positive pathogenic species, manifesting minimum inhibitory concentrations (MICs) and minimum bactericidal concentration (MBCs) around 4-32 and 32-128μg/mL, respectively. For Gram-negative bacteria tested, the MICs and MBCs of aloe-emodin were 128-256 and above 1024 μg/mL, respectively. Aloe-emodin at the MBC for 4 h eradicated 96.9% ofcells. Aloe-emodin treatment led to deformities in the morphology ofcells and the destroy of the selective permeability of the cell membranes. Analysis of the transcriptional profiles of aloe-emodin-treated cells revealed changes of genes involved in sulfur metabolism, L-lysine and peptidoglycan biosynthesis, and biofilm formation. Aloe-emodin therefore can safely control Gram-positive bacterial infections and proves to target the bacterial outer membrane.

Study Type : In Vitro Study

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