Evidence map›Paper›PMID 27353144›Full record

ArticleMicrobiologyOpen2016

FolC2-mediated folate metabolism contributes to suppression of inflammation by probiotic Lactobacillus reuteri.

Carissa M Thomas, Delphine M A Saulnier, Jennifer K Spinler, Peera Hemarajata, Chunxu Gao, Sara E Jones, Ashley Grimm, Miriam A Balderas, Matthew D Burstein, Christina Morra and 3 more

Open access · goldAbstract read
In one paragraph

Article in MicrobiologyOpen, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
6.1field-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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Microbial lysate upregulates host oxytocin.Brain, behavior, and immunity · 2017
    Trial
  4. Review
  5. Genomic and Phenotypic Characterization of Avian-DerivedAnimals : an open access journal from MDPI · 2026
    Article
  6. Review
  7. Review
  8. Article
  9. Folate Production byJournal of microbiology and biotechnology · 2025
    Article
  10. Review
  11. Article
  12. The Impact ofMicroorganisms · 2024
    Review
  13. The Plethora of Microbes with Anti-Inflammatory Activities.International journal of molecular sciences · 2024
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. The role of potential probiotic strainsFrontiers in microbiology · 2023
    Review
  20. Polyphenols andJournal of preventive medicine and hygiene · 2022
    Review
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

13 authors at 4 institutions in 1 country.

Carissa M ThomasIntegrative Molecular and Biomedical Sciences (IMBS), Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030.
Delphine M A SaulnierDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas.
Jennifer K SpinlerDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas.
Peera HemarajataDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas.
Chunxu GaoDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas.
Sara E JonesIntegrative Molecular and Biomedical Sciences (IMBS), Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030.
Ashley GrimmDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas.
Miriam A BalderasDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas.
Matthew D BursteinStructural and Computational Biology and Molecular Biophysics Graduate Program, Baylor College of Medicine, Houston, Texas.
Christina MorraIntegrative Molecular and Biomedical Sciences (IMBS), Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030.
Daniel RoethDepartment of Molecular Immunology, Beckman Research Institute of the City of Hope, 1500 E Duarte Rd., Duarte, California, 91010.
Markus KalkumDepartment of Molecular Immunology, Beckman Research Institute of the City of Hope, 1500 E Duarte Rd., Duarte, California, 91010.
James VersalovicDepartment of Pathology & Immunology, Baylor College of Medicine, Houston, Texas. jamesv@bcm.edu.
Texas Children's Hospital · USBaylor College of Medicine · USBaylor School · USBeckman Research Institute

Funding

Transgenic Mouse FacilityP30CA033572 · NCI · CITY OF HOPE/BECKMAN RESEARCH INSTITUTE · PI STANLEY R. HAMILTON · 1985 to 2026
$86.3M
Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Geoffrey A Preidis · 2001 to 2026
$28.3M
Gut L-Histidine Metabolism and Histamine Signaling in Colonic NeoplasiaU01CA170930 · NCI · BAYLOR COLLEGE OF MEDICINE · PI VERSALOVIC, JAMES · 2013 to 2017
$2.8M
Modulation of NF-kB Signaling by ImmunoprobioticsR01AT004326 · NCCIH · BAYLOR COLLEGE OF MEDICINE · PI VERSALOVIC, JAMES · 2008 to 2011
$1.8M
Intestinal Lactobacillus and Mucosal ImmunomodulationR01DK065075 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI VERSALOVIC, JAMES · 2007 to 2010
$1.3M
NCCIH NIH HHS R01 AT004326NCI NIH HHS P30 CA033572NCI NIH HHS U01 CA170930NIDDK NIH HHS P30 DK056338NIDDK NIH HHS R01 DK065075
6 · The paper itself

Abstract

Bacterial-derived compounds from the intestinal microbiome modulate host mucosal immunity. Identification and mechanistic studies of these compounds provide insights into host-microbial mutualism. Specific Lactobacillus reuteri strains suppress production of the proinflammatory cytokine, tumor necrosis factor (TNF), and are protective in a mouse model of colitis. Human-derived L. reuteri strain ATCC PTA 6475 suppresses intestinal inflammation and produces 5,10-methenyltetrahydrofolic acid polyglutamates. Insertional mutagenesis identified the bifunctional dihydrofolate synthase/folylpolyglutamate synthase type 2 (folC2) gene as essential for 5,10-methenyltetrahydrofolic acid polyglutamate biosynthesis, as well as for suppression of TNF production by activated human monocytes, and for the anti-inflammatory effect of L. reuteri 6475 in a trinitrobenzene sulfonic acid-induced mouse model of acute colitis. In contrast, folC encodes the enzyme responsible for folate polyglutamylation but does not impact TNF suppression by L. reuteri. Comparative transcriptomics between wild-type and mutant L. reuteri strains revealed additional genes involved in immunomodulation, including previously identified hdc genes involved in histidine to histamine conversion. The folC2 mutant yielded diminished hdc gene cluster expression and diminished histamine production, suggesting a link between folate and histadine/histamine metabolism. The identification of genes and gene networks regulating production of bacterial-derived immunoregulatory molecules may lead to improved anti-inflammatory strategies for digestive diseases.

Indexed as

AnimalsCells, CulturedColitisDisease Models, AnimalFemaleGastrointestinal MicrobiomeHumansInflammationLimosilactobacillus reuteriMiceMice, Inbred BALB CMultienzyme ComplexesMutagenesis, InsertionalPeptide SynthasesProbioticsTetrahydrofolatesdihydrofolate synthetasefolylpolyglutamate synthetaseMultienzyme ComplexesPeptide SynthasesTetrahydrofolatesTrinitrobenzenesulfonic AcidTumor Necrosis Factor-alphaColitisfolatefolC2histamineimmunomodulationLactobacillus reuteri.

Identifiers

PMID27353144
PMCPMC5061717
OpenAlexW2461889060

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.