To make or take: bacterial lipid homeostasis during Infection

Simple item page
dc.contributor.authorAdams, F.G.
dc.contributor.authorTrappetti, C.
dc.contributor.authorWaters, J.K.
dc.contributor.authorZang, M.
dc.contributor.authorBrazel, E.B.
dc.contributor.authorPaton, J.C.
dc.contributor.authorSnel, M.F.
dc.contributor.authorEijkelkamp, B.A.
dc.contributor.editorBonomo, R.A.
dc.date.issued2021
dc.description.abstractBacterial fatty acids are critical components of the cellular membrane. A shift in environmental conditions or in the bacterium’s lifestyle may result in the requirement for a distinct pool of fatty acids with unique biophysical properties. This can be achieved by the modification of existing fatty acids or via de novo synthesis. Furthermore, bacteria have evolved efficient means to acquire these energy-rich molecules from their environment. However, the balance between de novo fatty acid synthesis and exogenous acquisition during pathogenesis is poorly understood. Here, we studied the mouse fatty acid landscape prior to and after infection with Acinetobacter baumannii, a Gram-negative, opportunistic human pathogen. The lipid fluxes observed following infection revealed fatty acid- and niche-specific changes. Lipidomic profiling of A. baumannii isolated from the pleural cavity of mice identified novel A. baumannii membrane phospholipid species and an overall increased abundance of unsaturated fatty acid species. Importantly, we found that A. baumannii relies largely upon fatty acid acquisition in all but one of the studied niches, the blood, where the pathogen biosynthesizes its own fatty acids. This work is the first to reveal the significance of balancing the making and taking of fatty acids in a Gram-negative bacterium during infection, which provides new insights into the validity of targeting fatty acid synthesis as a treatment strategy.
dc.description.statementofresponsibilityFelise G. Adams, Claudia Trappetti, Jack K. Waters, Maoge Zang, Erin B. Brazel, James C. Paton, Marten F. Snel, Bart A. Eijkelkamp
dc.identifier.citationmBio, 2021; 12(3):e00928-21-1-e00928-21-5
dc.identifier.doi10.1128/mbio.00928-21
dc.identifier.issn2150-7511
dc.identifier.issn2150-7511
dc.identifier.orcidTrappetti, C. [0000-0001-8272-0068]
dc.identifier.orcidBrazel, E.B. [0000-0001-6632-687X]
dc.identifier.orcidPaton, J.C. [0000-0001-9807-5278]
dc.identifier.orcidSnel, M.F. [0000-0002-8502-7274]
dc.identifier.orcidEijkelkamp, B.A. [0000-0003-0179-8977]
dc.identifier.urihttp://hdl.handle.net/2440/131482
dc.language.isoen
dc.publisherAmerican Society for Microbiology
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1159752
dc.rights© 2021 Adams et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.
dc.source.urihttps://asm.org/
dc.subjectAcinetobacter; lipids; fatty acids; membrane biogenesis; pathogenesis
dc.titleTo make or take: bacterial lipid homeostasis during Infection
dc.typeJournal article
pubs.publication-statusPublished

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
hdl_131482.pdf
Size:
1.07 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download

Collections

Microbiology and Immunology publications