Evidence map›Paper›PMID 32521224›Full record

ArticleCell host & microbe2020

The Serotonin Neurotransmitter Modulates Virulence of Enteric Pathogens.

Aman Kumar, Regan M Russell, Reed Pifer, Zelia Menezes-Garcia, Santiago Cuesta, Sanjeev Narayanan, John B MacMillan, Vanessa Sperandio

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
11.9field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 115 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. A review of bloodstream infections-pathogens, pathogenesis, diagnostic strategies, treatment methods-challenges and future aspects.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Review
  7. Article
  8. Plant-Derived Melatonin Inhibits Bacterial Virulence via CpxA/R Two-Component System.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Drinking Water Supplementation ofMicroorganisms · 2025
    Article
  16. Article
  17. Article
  18. Gastric Inflammation Impacts Serotonin Secretion in a Mouse Model ofInternational journal of molecular sciences · 2025
    Article
  19. Article
  20. Cecal Metabolome Profiles of Turkey Poults in Response toAnimals : an open access journal from MDPI · 2025
    Article

19 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Aman KumarDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Regan M RussellDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Reed PiferDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Zelia Menezes-GarciaDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Santiago CuestaDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Sanjeev NarayananDepartment of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA.
John B MacMillanDepartment of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Vanessa SperandioDepartment of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA. Electronic address: vanessa.sperandio@utsouthwestern.edu.
Southwestern Medical Center · USKansas State University · US

Funding

MOLECULAR MICROBIOLOGY TRAINING GRANTT32AI007520 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI Julie K Pfeiffer · 1997 to 2026
$7.0M
Quorum sensing regulation of EHEC virulence genesR01AI053067 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2003 to 2017
$6.3M
Quorum Sensing Regulation of EHEC Virulence GenesR37AI053067 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI VANESSA SPERANDIO · 2018 to 2026
$5.3M
Tryptophan derivatives in EHEC pathogenesisR01AI114511 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI SPERANDIO, VANESSA · 2015 to 2019
$2.3M
NIAID NIH HHS R01 AI053067NIAID NIH HHS R01 AI114511NIAID NIH HHS R37 AI053067NIAID NIH HHS T32 AI007520
6 · The paper itself

Abstract

The gut-brain axis is crucial to microbial-host interactions. The neurotransmitter serotonin is primarily synthesized in the gastrointestinal (GI) tract, where it is secreted into the lumen and subsequently removed by the serotonin transporter, SERT. Here, we show that serotonin decreases virulence gene expression by enterohemorrhagic E. coli (EHEC) and Citrobacter rodentium, a murine model for EHEC. The membrane-bound histidine sensor kinase, CpxA, is a bacterial serotonin receptor. Serotonin induces dephosphorylation of CpxA, which inactivates the transcriptional factor CpxR controlling expression of virulence genes, notably those within the locus of enterocyte effacement (LEE). Increasing intestinal serotonin by genetically or pharmacologically inhibiting SERT decreases LEE expression and reduces C. rodentium loads. Conversely, inhibiting serotonin synthesis increases pathogenesis and decreases host survival. As other enteric bacteria contain CpxA, this signal exploitation may be engaged by other pathogens. Additionally, repurposing serotonin agonists to inhibit CpxA may represent a potential therapeutic intervention for enteric bacteria.

Indexed as

AnimalsBacterial ProteinsCitrobacter rodentiumDisease Models, AnimalEnterobacteriaceae InfectionsEnterohemorrhagic Escherichia coliEscherichia coli ProteinsFemaleGastrointestinal TractGene Expression Regulation, BacterialHeLa CellsHost-Pathogen InteractionsHumansMiceMice, Inbred C57BLMice, KnockoutBacterial ProteinsCpxA protein, bacteriaCpxR protein, BacteriaEscherichia coli ProteinsLEE protein, E coliPhosphoproteinsProtein KinasesSerotoninSerotonin AntagonistsVirulence FactorsCpxAenteric infectionsenterohemorrhagic E. coli (EHEC)inter-kingdom signalingserotonin

Identifiers

PMID32521224
PMCPMC7351610
OpenAlexW3033687039

What OpenQuestion holds

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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.