Title | Cannabidiol is a Novel Modulator of Bacterial Membrane Vesicles |
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Type | Journal article |
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Authors | Kosgodage, U., Matewele, P., Awamaria, B., Kraev, I., Warde, P., Mastroianni, G., Nunn, A., Guy, G.W., Bell, J.D., Inal, J.M. and Lange, S. |
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Abstract | Membrane vesicles (MVs) released from bacteria participate in cell communication and host-pathogen interactions. Roles for MVs in antibiotic resistance are gaining increased attention and in this study we investigated if known anti-bacterial effects of cannabidiol (CBD), a phytocannabinoid from Cannabis sativa, could be in part attributed to effects on bacterial MV release. We found that CBD is a strong inhibitor of MV release from Gram-negative bacteria (E. coli VCS257), while inhibitory effect on MV release from Gram-positive bacteria (S. aureus subsp. aureus Rosenbach) was negligible. When used in combination with selected antibiotics, CBD significantly increased the bactericidal action of several antibiotics in the Gram-negative bacteria. In addition, CBD increased antibiotic effects of kanamycin in the Gram-positive bacteria, without affecting MV release. CBD furthermore changed protein profiles of E. coli MVs after 1 h treatment. Our findings indicate that CBD may pose as a putative adjuvant agent for tailored co-application with selected antibiotics, depending on bacterial species, to increase antibiotic activity, including via MV inhibition, and help reduce antibiotic resistance. |
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Keywords | Cannabidiol (CBD), antibiotic resistance, Gram-negative, Gram-positive, E. coli, S. aureus, Membrane vesicles (MVs) |
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Article number | 324 |
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Journal | Frontiers in Cellular and Infection Microbiology |
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Journal citation | 9 |
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ISSN | 2235-2988 |
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Year | 2019 |
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Publisher | Frontiers |
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Digital Object Identifier (DOI) | https://doi.org/10.3389/fcimb.2019.00324 |
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Web address (URL) | https://www.frontiersin.org/articles/10.3389/fcimb.2019.00324/abstract |
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Publication dates |
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Published | 10 Sep 2019 |
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Funder | GW Pharma (unrestricted grant), equipment used in this work was funded by the Guy Foundation |
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License | CC BY 4.0 |
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