African Plant-Based Natural Products with Antivirulence Activities to the Rescue of Antibiotics

Antibiotics

ChristianEmmanuel Mahavy¹  Tsiry Rasamiravaka¹  Mondher ElJaziri²  Pierre Duez³ 

[1] Laboratory of Biotechnology and Microbiology, University of Antananarivo, BP 906, Antananarivo 101, Madagascar;Laboratory of Plant Biotechnology, Université Libre de Bruxelles, B-1050 Brussels, Belgium;Unit of Therapeutic Chemistry and Pharmacognosy, University of Mons, 7000 Mons, Belgium;

关键词: antivirulence;    African plants;    biofilm;    Escherichia;    natural compounds;    Pseudomonas;   

DOI  :  10.3390/antibiotics9110830

来源: DOAJ

【 摘 要 】

The worldwide emergence of antibiotic-resistant bacteria and the thread of widespread superbug infections have led researchers to constantly look for novel effective antimicrobial agents. Within the past two decades, there has been an increase in studies attempting to discover molecules with innovative properties against pathogenic bacteria, notably by disrupting mechanisms of bacterial virulence and/or biofilm formation which are both regulated by the cell-to-cell communication mechanism called ‘quorum sensing’ (QS). Certainly, targeting the virulence of bacteria and their capacity to form biofilms, without affecting their viability, may contribute to reduce their pathogenicity, allowing sufficient time for an immune response to infection and a reduction in the use of antibiotics. African plants, through their huge biodiversity, present a considerable reservoir of secondary metabolites with a very broad spectrum of biological activities, a potential source of natural products targeting such non-microbicidal mechanisms. The present paper aims to provide an overview on two main aspects: (i) succinct presentation of bacterial virulence and biofilm formation as well as their entanglement through QS mechanisms and (ii) detailed reports on African plant extracts and isolated compounds with antivirulence properties against particular pathogenic bacteria.

【 授权许可】

Unknown