Results 31 to 40 of about 284,749 (288)

Incorporation of Plasmid DNA Into Bacterial Membrane Vesicles by Peptidoglycan Defects in Escherichia coli

open access: yesFrontiers in Microbiology, 2021
Membrane vesicles (MVs) are released by various prokaryotes and play a role in the delivery of various cell-cell interaction factors. Recent studies have determined that these vesicles are capable of functioning as mediators of horizontal gene transfer ...
Sharmin Aktar   +20 more
doaj   +1 more source

Bacterial Outer Membrane Vesicles and Vaccine Applications [PDF]

open access: yesFrontiers in Immunology, 2014
Vaccines based on outer membrane vesicles (OMV) were developed more than 20 years ago against Neisseria meningitidis serogroup B. These nano-sized structures exhibit remarkable potential for immunomodulation of immune responses and delivery of meningococcal antigens or unrelated antigens incorporated into the vesicle structure.
Acevedo, Reinaldo   +10 more
openaire   +5 more sources

Comparison of Two Different Methods for the Extraction of Outer Membrane Vesicles from the Bordetella pertussis as a Vaccine Candidate [PDF]

open access: yesArchives of Razi Institute, 2021
Despite the availability of a vaccine, pertussis is still a worldwide health problem. Outer membrane vesicles (OMVs) in gram-negative bacteria can stimulate the immune system due to several outer membrane proteins and are very good candidates in vaccine ...
M. S Soltani   +4 more
doaj   +1 more source

Outer Membrane Vesicles: An Emerging Vaccine Platform

open access: yesVaccines, 2022
Vaccine adjuvants are substances that improve the immune capacity of a recombinant vaccine to a great extent and have been in use since the early 1900s; they are primarily short-lived and initiate antigen activity, mainly an inflammatory response.
Dharmendra Kashyap   +8 more
openaire   +3 more sources

Aberrant Membrane Structures in Hypervesiculating Escherichia coli Strain ΔmlaEΔnlpI Visualized by Electron Microscopy

open access: yesFrontiers in Microbiology, 2021
Escherichia coli produces extracellular vesicles called outer membrane vesicles (OMVs) by releasing a part of its outer membrane. We previously reported that the combined deletion of nlpI and mlaE, related to envelope structure and phospholipid ...
Yoshihiro Ojima   +7 more
doaj   +1 more source

The serogroup B meningococcal outer membrane vesicle-based vaccine 4CMenB induces cross-species protection against Neisseria gonorrhoeae

open access: yesbioRxiv, 2020
There is a pressing need for a gonorrhea vaccine due to the high disease burden associated with gonococcal infections globally and the rapid evolution of antibiotic resistance in Neisseria gonorrhoeae (Ng).
I. Leduc   +10 more
semanticscholar   +1 more source

Regulation of outer-membrane proteins (OMPs) A and F, during hlyF-induced outer-membrane vesicle (OMV) biosynthesis

open access: yesHeliyon, 2019
Background: Gram-negative bacteria actively secrete outer membrane vesicles into the surrounding environment and these vesicles have been shown to play various physiological and protective roles such as carrying antibiotic-degrading enzymes and acting as
Wouter André van der Westhuizen   +3 more
doaj   +1 more source

Knockout of mlaA increases Escherichia coli virulence in a silkworm infection model.

open access: yesPLoS ONE, 2022
The mlaA gene encodes a lipoprotein to maintain an outer membrane lipid asymmetry in gram-negative bacteria. Although the role of mlaA in bacterial virulence has been studied in several bacterial species, there are no reports of its role in E.
Haruka Nasu   +3 more
doaj   +2 more sources

Porphyromonas gingivalis Outer Membrane Vesicles Increase Vascular Permeability [PDF]

open access: yesJournal of Dental Research, 2020
Periodontitis is increasingly associated with increased risk of cardiovascular and other systemic diseases. The Gram-negative anaerobe, Porphyromonas gingivalis, is a key periodontal pathogen, and several lines of evidence link the presence of this bacterium in the circulation with vascular disease.
Farrugia, C.   +2 more
openaire   +4 more sources

Microbial biosynthesis of designer outer membrane vesicles [PDF]

open access: yesCurrent Opinion in Biotechnology, 2014
Outer membrane vesicles (OMVs) are nanoscale proteoliposomes that are ubiquitously secreted by Gram-negative bacteria. Interest in these bioparticles has escalated over the years, leading to discoveries regarding their composition, production, and vaccine potential.
Jenny L, Baker   +4 more
openaire   +2 more sources

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