Evidence map›Paper›PMID 35283192›Full record

ArticleThe Journal of biological chemistry2022

In vivo growth of Staphylococcus lugdunensis is facilitated by the concerted function of heme and non-heme iron acquisition mechanisms.

Ronald S Flannagan, Jeremy R Brozyna, Brijesh Kumar, Lea A Adolf, Jeffrey John Power, Simon Heilbronner, David E Heinrichs

Open access · goldAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  9. Article
  10. Review
  11. Article
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  13. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Ronald S FlannaganDepartment of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada.
Jeremy R BrozynaDepartment of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada.
Brijesh KumarDepartment of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada.
Lea A AdolfDepartment of Infection Biology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany.
Jeffrey John PowerDepartment of Infection Biology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany.
Simon HeilbronnerDepartment of Infection Biology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany; German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany; Cluster of Excellence EXC2124 Controlling Microbes to Fight Infections, Tübingen, Germany.
David E HeinrichsDepartment of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada. Electronic address: deh@uwo.ca.
Western University · CAUniversity of Tübingen · DEGerman Center for Infection Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Staphylococcus lugdunensis has increasingly been recognized as a pathogen that can cause serious infection indicating this bacterium overcomes host nutritional immunity. Despite this, there exists a significant knowledge gap regarding the iron acquisition mechanisms employed by S. lugdunensis, especially during infection of the mammalian host. Here we show that S. lugdunensis can usurp hydroxamate siderophores and staphyloferrin A and B from Staphylococcus aureus. These transport activities all required a functional FhuC ATPase. Moreover, we show that the acquisition of catechol siderophores and catecholamine stress hormones by S. lugdunensis required the presence of the sst-1 transporter-encoding locus, but not the sst-2 locus. Iron-dependent growth in acidic culture conditions necessitated the ferrous iron transport system encoded by feoAB. Heme iron was acquired via expression of the iron-regulated surface determinant (isd) locus. During systemic infection of mice, we demonstrated that while S. lugdunensis does not cause overt illness, it does colonize and proliferate to high numbers in the kidneys. By combining mutations in the various iron acquisition loci (isd, fhuC, sst-1, and feo), we demonstrate that only a strain deficient for all of these systems was attenuated in its ability to proliferate to high numbers in the murine kidney. We propose the concerted action of heme and non-heme iron acquisition systems also enable S. lugdunensis to cause human infection.

Indexed as

Staphylococcus lugdunensisAnimalsBacterial ProteinsHemeIronMammalsMiceSiderophoresStaphylococcus aureusBacterial ProteinsHemeIronSiderophoresbacteriahemeinfectionironmicrobial pathogenesissiderophore

Identifiers

PMID35283192
PMCPMC9052147
OpenAlexW4220736739

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.