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Unraveling the molecular regulation of biofilm underlying effect of chronic disease medications. | LitMetric

AI Article Synopsis

Article Abstract

A biofilm is a complex microbial structure that promotes the progression of persistent infections, particularly in nosocomial settings via indwelling medical devices. Conventional antibiotics are often ineffective treatments for biofilms; hence, it is crucial to investigate or design non-antibiotic antibiofilm compounds that can successfully reduce and eradicate biofilm-related infections. This study was an attempt to repurpose chronic disease medications of the antihypertensive and antilipidemic drug classes, including candesartan cilexetil (CC) and ursodeoxycholic acid (UDCA), respectively, to be used as antibiofilm agents against the two infectious pathogens Staphylococcus aureus and Enterococcus faecalis. Crystal violet (CV) staining assay was used to evaluate the antibiofilm activity of the drugs. Real-time polymerase chain reaction (RT-PCR) was performed to determine the transcription levels of the biofilm-related genes (icaA and icaR in S. aureus and fsrC and gelE in E. faecalis) following treatment with different concentrations of CC and UDCA. we found that a concentration of greater than 1.5 µg/ml of CC significantly (p < 0.005) inhibited the biofilm formation of both bacterial isolates, and a concentration of greater than 50 µg/ml of UDCA significantly (p < 0.005) inhibited the biofilm formation of both bacterial isolates. Interestingly, the mRNA expression levels of biofilm-related genes were decreased in the two bacterial isolates at concentrations that were lower than the human pharmaceutical daily doses.

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Source
http://dx.doi.org/10.14715/cmb/2024.70.7.3DOI Listing

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