Evidence map›Paper›PMID 33536444›Full record

ArticleScientific reports2021

Glucose confers protection to Escherichia coli against contact killing by Vibrio cholerae.

Cristian V Crisan, Holly L Nichols, Sophia Wiesenfeld, Gabi Steinbach, Peter J Yunker, Brian K Hammer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. 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
4.9field-weighted citation impact, top 5% 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, 28 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Cristian V CrisanSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
Holly L NicholsSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
Sophia WiesenfeldSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
Gabi SteinbachCenter for Microbial Dynamics and Infection, Georgia Institute of Technology, Atlanta, GA, USA.
Peter J YunkerCenter for Microbial Dynamics and Infection, Georgia Institute of Technology, Atlanta, GA, USA.
Brian K HammerSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA. brian.hammer@biology.gatech.edu.
Georgia Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evolutionary arms races are broadly prevalent among organisms including bacteria, which have evolved defensive strategies against various attackers. A common microbial aggression mechanism is the type VI secretion system (T6SS), a contact-dependent bacterial weapon used to deliver toxic effector proteins into adjacent target cells. Sibling cells constitutively express immunity proteins that neutralize effectors. However, less is known about factors that protect non-sibling bacteria from T6SS attacks independently of cognate immunity proteins. In this study, we observe that human Escherichia coli commensal strains sensitive to T6SS attacks from Vibrio cholerae are protected when co-cultured with glucose. We confirm that glucose does not impair V. cholerae T6SS activity. Instead, we find that cells lacking the cAMP receptor protein (CRP), which regulates expression of hundreds of genes in response to glucose, survive significantly better against V. cholerae T6SS attacks even in the absence of glucose. Finally, we show that the glucose-mediated T6SS protection varies with different targets and killers. Our findings highlight the first example of an extracellular small molecule modulating a genetically controlled response for protection against T6SS attacks. This discovery may have major implications for microbial interactions during pathogen-host colonization and survival of bacteria in environmental communities.

Indexed as

Bacterial InfectionsBacterial ProteinsEscherichia coliGene Expression Regulation, BacterialGlucoseHumansType VI Secretion SystemsVibrio choleraeBacterial ProteinsGlucoseType VI Secretion Systems

Identifiers

PMID33536444
PMCPMC7858629
OpenAlexW3127040917

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.