Article Publish Status: FREE
Abstract Title:

Cannabidiol Is a Novel Modulator of Bacterial Membrane Vesicles.

Abstract Source:

Front Cell Infect Microbiol. 2019 ;9:324. Epub 2019 Sep 10. PMID: 31552202

Abstract Author(s):

Uchini S Kosgodage, Paul Matewele, Brigitte Awamaria, Igor Kraev, Purva Warde, Giulia Mastroianni, Alistair V Nunn, Geoffrey W Guy, Jimmy D Bell, Jameel M Inal, Sigrun Lange

Article Affiliation:

Uchini S Kosgodage


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, could be in part attributed to effects on bacterial MV profile and MV release. We found that CBD is a strong inhibitor of MV release from Gram-negative bacteria (VCS257), while inhibitory effect on MV release from Gram-positive bacteria (subspRosenbach) 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 MVs released fromafter 1 h CBD 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.

Study Type : In Vitro Study

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