Article (Scientific journals)
Characterization of membrane vesicles released by Mycobacterium avium in response to environment mimicking the macrophage phagosome.
Chiplunkar, Sanket Sanjeev; Silva, Carlos A; Bermudez, Luiz E et al.
2019In Future Microbiology, 14 (4), p. 293-313
Peer Reviewed verified by ORBi
 

Files


Full Text
fmb-2018-0249.pdf
Author postprint (15.53 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
AHA; bioorthogonal metabolic labeling; macrophages; membrane vesicles; minimal medium; phagosome model; Bacterial Proteins; Fatty Acids; Bacterial Proteins/analysis; Bacterial Proteins/metabolism; Fatty Acids/analysis; Fatty Acids/metabolism; Humans; Macrophages/chemistry; Macrophages/metabolism; Mycobacterium Infections/microbiology; Mycobacterium avium/chemistry; Mycobacterium avium/metabolism; Phagosomes/chemistry; Phagosomes/metabolism; Proteomics; Transport Vesicles/chemistry; Transport Vesicles/metabolism; M. avium; Mycobacterium avium; Mycobacterium Infections; Phagosomes; Transport Vesicles; Microbiology; Microbiology (medical)
Abstract :
[en] AIM: To investigate the formation of Mycobacterium avium membrane vesicles (MVs) within macrophage phagosomes. MATERIALS & METHODS: A phagosome model was utilized to characterize proteomics and lipidomics of MVs. A click chemistry-based enrichment assay was employed to examine the presence of MV proteins in the cytosol of host cells. RESULTS: Exposure to metals at concentrations present in phagosomes triggers formation of bacterial MVs. Proteomics identified several virulence factors, including enzymes involved in the cell wall synthesis, lipid and fatty acid metabolism. Some of MV proteins were also identified in the cytosol of infected macrophages. MVs harbor dsDNA. CONCLUSION: M. avium produces MVs within phagosomes. MVs carry products with potential roles in modulation of host immune defenses and intracellular survival.
Disciplines :
Microbiology
Author, co-author :
Chiplunkar, Sanket Sanjeev ;  Université de Liège - ULiège > GIGA > GIGA Cancer ; Université de Liège - ULiège > GIGA ; Université de Liège - ULiège > Faculté de Médecine > Doct. sc. méd. (paysage)
Silva, Carlos A;  Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
Bermudez, Luiz E;  Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA ; Department of Microbiology, College of Science, Oregon State University, Corvallis, OR 97331, USA
Danelishvili, Lia;  Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
Language :
English
Title :
Characterization of membrane vesicles released by Mycobacterium avium in response to environment mimicking the macrophage phagosome.
Publication date :
2019
Journal title :
Future Microbiology
ISSN :
1746-0913
eISSN :
1746-0921
Publisher :
Future Medicine Ltd., England
Volume :
14
Issue :
4
Pages :
293-313
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
chaperones, upon MV-mediated secretion, may trigger host proinflammatory immune responses, which actually benefit the colonization and spread of MAH104. This possibility is supported by the finding that M. tuberculosis chaperonins are highly immunogenic and potent proinflammatory cytokine stimulators [53].
Available on ORBi :
since 10 March 2022

Statistics


Number of views
40 (14 by ULiège)
Number of downloads
18 (1 by ULiège)

Scopus citations®
 
23
Scopus citations®
without self-citations
21
OpenCitations
 
13

Bibliography


Similar publications



Contact ORBi