What is the role of Ferulic Acid (FA) in inhibiting biofilm formation by Escherichia coli (E. coli)?
Label:chem
Topic
Ferulic Acid (FA) is a natural phenolic compound found in fruits, vegetables, and grains. It has been reported to possess various biological activities, including anti-inflammatory, antioxidant, and antitumor properties. This study investigates the inhibitory effect of FA on the biofilm formation of E. coli, a foodborne pathogen known for its robust biofilm-forming capabilities, which can reduce antibiotic sensitivity and enhance bacterial virulence.
From: "Antibiofilm Inhibitor Ferulic Acid as an Antibacterial Synergist Against Escherichia coli", Biomolecules 2025, 15(9), 1253;
Answer
FA significantly inhibits biofilm formation by E. coli without affecting bacterial growth or metabolic activity. It reduces the production of extracellular polymeric substances (EPS) and weakens bacterial motility. The study also shows that FA downregulates the expression of biofilm-related genes, such as csgD, flhC, flhD, motA, and fimA, while upregulating the transcription of c-di-GMP-related genes (pdeR, pdeA, and dosP). This dual mechanism of action makes FA a promising candidate for treating E. coli infections.
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