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Article Publish Status: FREE
Abstract Title:

Piperine exhibits promising antibiofilm activity against Staphylococcus aureus by accumulating reactive oxygen species (ROS).

Abstract Source:

Arch Microbiol. 2021 Dec 23 ;204(1):59. Epub 2021 Dec 23. PMID: 34940904

Abstract Author(s):

Sharmistha Das, Payel Paul, Sudipta Chatterjee, Poulomi Chakraborty, Ranojit K Sarker, Amlan Das, Debasish Maiti, Prosun Tribedi

Article Affiliation:

Sharmistha Das

Abstract:

Staphylococcus aureus causes numerous community-acquired and nosocomial infections in humans by exploiting biofilm. In this context, this study aims to impede the formation of Staphylococcus aureus biofilm by exposing the cells to a plant-based alkaloid, piperine. Our study revealed that piperine exhibited considerable antimicrobial activity against the test organism. However, we had tested the lower concentrations (up to 32 µg/mL) of piperine to observe whether they could show any antibiofilm activity against the same organism. Several experiments, like crystal violet (CV) assay, estimation of total biofilm protein, and fluorescence microscopic observations, established that lower concentrations (up to 16 µg/mL) of piperine showed efficient antibiofilm activity against Staphylococcus aureus. In this connection, we also noticed that the lower concentrations (8 and 16 µg/mL) of piperine showed a considerable reduction in microbial metabolic activity. Besides, it was also observed that the mentioned concentrations of piperine did not compromise the microbial growth of the target organism while exhibiting antibiofilm activity. To understand the underlying mechanism of microbial biofilm inhibition under the influence of piperine, we observed that the compound was found to accumulate reactive oxygen species in the bacterial cells that could play an important role in the inhibition of biofilm formation. Furthermore, the tested concentrations (8 and 16 µg/mL) of piperine were able to inhibit the motility of the test organism that might compromise the development of biofilm. Thus, piperine could be considered as a potential agent for the effective management of biofilm threat caused by Staphylococcus aureus.

Study Type : In Vitro Study

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