Evidence map›Paper›PMID 35091566›Full record

ArticleNature communications2022

Accumulation of microbial DNAs promotes to islet inflammation and β cell abnormalities in obesity in mice.

Hong Gao, Zhenlong Luo, Yudong Ji, Kechun Tang, Zhongmou Jin, Crystal Ly, Dorothy D Sears, Sushil Mahata, Wei Ying

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 2% 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

62 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

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  20. VSIG4Journal of experimental & clinical cancer research : CR · 2025
    Article

2 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

9 authors at 2 institutions in 2 countries.

Hong GaoDivision of Endocrinology & Metabolism, University of California, San Diego, La Jolla, CA, 92093, USA.
Zhenlong LuoDivision of Endocrinology & Metabolism, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID http://orcid.org/0000-0003-4323-2787
Yudong JiDivision of Endocrinology & Metabolism, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID http://orcid.org/0000-0003-1638-5497
Kechun TangVA San Diego Healthcare System, La Jolla, CA, 92093, USA.
Zhongmou JinDivision of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA.
Crystal LyDivision of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA.
Dorothy D SearsCollege of Health Solutions, Arizona State University, Phoenix, AZ, 85004, USA.ORCID http://orcid.org/0000-0002-9260-3540
Sushil MahataDivision of Endocrinology & Metabolism, University of California, San Diego, La Jolla, CA, 92093, USA.
Wei YingDivision of Endocrinology & Metabolism, University of California, San Diego, La Jolla, CA, 92093, USA. weying@health.ucsd.edu.ORCID http://orcid.org/0000-0002-4890-7256
University of California San Diego · USVA San Diego Healthcare System · US

Funding

Transgenic & Knock-out MouseP30DK063491 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Andrea L Hevener · 2003 to 2026
$40.4M
U of Calif, San Diego Neuroscience Microscopy ImagingP30NS047101 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GLEESON, JOSEPH G, ZHENG, BINHAI · 2003 to 2022
$9.0M
(PQA4) GPS exposure to environments & relations with biomarkers of cancer riskR01CA179977 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KERR, JACQUELINE · 2013 to 2016
$3.0M
Mechanisms by which hepatocyte extracellular miRNAs mediate peripheral insulin sensitivityR01DK125560 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YING, WEI · 2021 to 2025
$2.0M
Adipose tissue macrophages secrete exosome-miRs as paracrine/endocrine molecules to directly modulate insulin target cell function in response to obesityR00DK115998 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YING, WEI · 2020 to 2022
$739k
Catestatin improves glucose homeostasis and insulin sensitivity in diet-induced obese miceI01BX003934 · VA · VA SAN DIEGO HEALTHCARE SYSTEM · PI MAHATA, SUSHIL K · 2018 to 2021
–
BLRD VA I01 BX003934NCI NIH HHS R01 CA179977NIDDK NIH HHS P30 DK063491NIDDK NIH HHS R00 DK115998NIDDK NIH HHS R01 DK125560NINDS NIH HHS P30 NS047101
6 · The paper itself

Abstract

Various microbial products leaked from gut lumen exacerbate tissue inflammation and metabolic disorders in obesity. Vsig4+ macrophages are key players preventing infiltration of bacteria and their products into host tissues. However, roles of islet Vsig4+ macrophages in the communication between microbiota and β cells in pathogenesis of obesity-associated islet abnormalities are unknown. Here, we find that bacterial DNAs are enriched in β cells of individuals with obesity. Intestinal microbial DNA-containing extracellular vesicles (mEVs) readily pass through obese gut barrier and deliver microbial DNAs into β cells, resulting in elevated inflammation and impaired insulin secretion by triggering cGAS/STING activation. Vsig4+ macrophages prevent mEV infiltration into β cells through a C3-dependent opsonization, whereas loss of Vsig4 leads to microbial DNA enrichment in β cells after mEV treatment. Removal of microbial DNAs blunts mEV effects. Loss of Vsig4+ macrophages leads to microbial DNA accumulation in β cells and subsequently obesity-associated islet abnormalities.

Indexed as

AnimalsCyclic Guanosine Monophosphate-Adenosine Monophosphate SynthaseDiet, High-FatDNA, BacterialExtracellular VesiclesGastrointestinal MicrobiomeHumansInflammationInsulin-Secreting CellsInsulin SecretionIslets of LangerhansMacrophagesMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutcGAS protein, mouseCyclic Guanosine Monophosphate-Adenosine Monophosphate SynthaseDNA, BacterialMembrane ProteinsNucleotidyltransferasesReceptors, ComplementSting1 protein, mouseSTING ProteinVSIG4 protein, mouse

Identifiers

PMID35091566
PMCPMC8799656
OpenAlexW4210568567

What OpenQuestion holds

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Registered trials

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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.