Evidence map›Paper›PMID 31874255›Full record

ArticleCellular and molecular gastroenterology and hepatology2020

Lactobacillus rhamnosus GG-induced Expression of Leptin in the Intestine Orchestrates Epithelial Cell Proliferation.

Trevor M Darby, Crystal R Naudin, Liping Luo, Rheinallt M Jones

Open access · goldAbstract read
In one paragraph

Article in Cellular and molecular gastroenterology and hepatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Review
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  5. Review
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  18. Effect ofNutrients · 2020
    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

4 authors at 1 institution in 1 country.

Trevor M DarbyDivision of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia.
Crystal R NaudinDivision of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia.
Liping LuoDivision of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia.
Rheinallt M JonesDivision of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia; Emory Microbiome Research Center, Emory University School of Medicine, Atlanta, Georgia. Electronic address: rjones5@emory.edu.
Emory University · US

Funding

The molecular mechanisms of intestinal homeostasis.R01DK098391 · NIDDK · EMORY UNIVERSITY · PI JONES, RHEINALLT MELFYN · 2014 to 2017
$1.4M
NIDDK NIH HHS R01 DK098391
6 · The paper itself

Abstract

BACKGROUND &

aimsIdentifying the functional elements that mediate efficient gut epithelial growth and homeostasis is essential for understanding intestinal health and disease. Many of these processes involve the Lactobacillus-induced generation of reactive oxygen species by NADPH oxidase (Nox1). However, the downstream signaling pathways that respond to Nox1-generated reactive oxygen species and mediate these events have not been described.

methodsWild-type and knockout mice were fed Lactobacillus rhamnosus GG and the transcriptional and cell signaling pathway responses in the colon measured. Corroboration of data generated in mice was done using in organoid tissue culture and in vivo gut injury models.

resultsIngestion of L rhamnosus GG induces elevated levels of leptin in the gut epithelia, which as well as functioning in the context of metabolism, has pleiotropic activity as a chemokine that triggers cell proliferation. Consistently, using gut epithelial-specific knockout mice, we show that L rhamnosus GG-induced elevated levels of leptin is dependent on a functional Nox1 protein in the colonic epithelium, and that L rhamnosus GG-induced cell proliferation is dependent on Nox1, leptin, and leptin receptor. We also show that L rhamnosus GG induces the JAK-STAT signaling pathway in the gut in a Nox1, leptin, and leptin receptor-dependent manner.

conclusionsThese results demonstrate a novel role for leptin in the response to colonization by lactobacilli, where leptin functions in the transduction of signals from symbiotic bacteria to subepithelial compartments, where it modulates intestinal growth and homeostasis.

Indexed as

Lacticaseibacillus rhamnosusAnimalsCell ProliferationCells, CulturedColonEpithelial CellsIntestinal MucosaJanus KinasesLeptinMiceMice, KnockoutModels, AnimalNADPH Oxidase 1Primary Cell CultureProbioticsReactive Oxygen SpeciesJanus KinasesLeptinleptin receptor, mouseNADPH Oxidase 1NOX1 protein, mouseReactive Oxygen SpeciesReceptors, LeptinSTAT Transcription FactorsLactobacillusLeptinNox1ProbioticProbiotics

Identifiers

PMID31874255
PMCPMC7160578
OpenAlexW2994832736

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.