Publications by authors named "Hsuan-Ju Lin"

Drug-resistant efflux pumps play a crucial role in bacterial antibiotic resistance. In this study, potential efflux pump inhibitors (EPIs) with a diphenylmethane scaffold were screened and evaluated against drug-resistant . Twenty-four compounds were docked against the drug-binding site of multidrug transporter AcrB, and 2,2-diphenylethanol (DPE), di--tolyl-methanol (DPT), and 4-(benzylphenyl) acetonitrile (BPA) were screened for their highest binding free energy.

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The World Health Organization indicated that antibiotic resistance is one of the greatest threats to health, food security, and development in the world. Drug resistance efflux pumps are essential for antibiotic resistance in bacteria. Here, we evaluated the plant phenolic compound ethyl 3,4-dihydroxybenzoate (EDHB) for its efflux pump inhibitory (EPI) activity against drug-resistant .

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Drug efflux pumps are one of the major elements used by antibiotic-resistant bacteria. Efflux pump inhibitors (EPIs) are potential therapeutic agents for adjunctive therapy, which can restore the activity of antibiotics that are no longer effective against pathogens. This study evaluated the seaweed compound diphenylmethane (DPM) for its EPI activity.

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Article Synopsis
  • Multidrug efflux pumps like AcrB significantly contribute to antibiotic resistance, and traditional methods for monitoring their activity have limitations, such as producing indirect results or being affected by color interference.
  • The study utilized MALDI-TOF MS for direct monitoring of AcrB's drug efflux, demonstrating that overexpressed AcrB increased resistance to antibiotics and dyes through its efflux activity.
  • Results showed that MALDI-TOF MS provided accurate and reliable measurements, effectively tracking the continuous efflux of various substrates from cells and validating it against conventional methods.
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Nervous necrosis virus (NNV) results in high mortality rates of infected marine fish worldwide. Interferons (IFNs) are cytokines in vertebrates that suppress viral replication and regulate immune responses. Heterologous overexpression of fish IFN in bacteria could be problematic because of protein solubility and loss of function due to protein misfolding.

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Multidrug-resistant pathogens are a significant clinical problem. Efflux pump inhibitors (EPIs) can restore the activities of existing antibiotics by interfering with drug efflux pumps located in bacterial cell membranes. Seaweeds are important sources of biologically active metabolites of natural origin; however, their potential as EPIs remains uninvestigated.

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ATP-binding cassette transporter VcaM ( ABC multidrug resistance pump) has previously been shown to confer resistance to a variety of medically important drugs. In this study, we set to analyse its properties both in vitro in detergent-solubilised state and in vivo to differentiate its dependency on auxiliary proteins for its function. We report the first detailed kinetic parameters of purified VcaM and the rate of phosphate (Pi) production.

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