Evidence map›Paper›PMID 34777363›Full record

ArticleFrontiers in immunology2021

GPR Expression in Intestinal Biopsies From SCT Patients Is Upregulated in GvHD and Is Suppressed by Broad-Spectrum Antibiotics.

Sakhila Ghimire, Daniela Weber, Katrin Hippe, Elisabeth Meedt, Matthias Hoepting, Anna-Sophia Kattner, Andreas Hiergeist, André Gessner, Carina Matos, Saroj Ghimire and 6 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

11 citing papers in PubMed, 12 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

16 authors at 1 institution in 2 countries.

Sakhila GhimireDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Daniela WeberDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Katrin HippeDepartment of Pathology, University of Regensburg, Regensburg, Germany.
Elisabeth MeedtDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Matthias HoeptingDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Anna-Sophia KattnerDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Andreas HiergeistInstitute for Medical Microbiology and Hygiene (IMHR), University Hospital Regensburg, Regensburg, Germany.
André GessnerInstitute for Medical Microbiology and Hygiene (IMHR), University Hospital Regensburg, Regensburg, Germany.
Carina MatosDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Saroj GhimireKathmandu University School of Medical Sciences, Dhulikhel, Nepal.
Daniel WolffDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Matthias EdingerDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Petra HoffmannDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Hendrik PoeckDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Wolfgang HerrDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
Ernst HollerDepartment of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany.
University Hospital Regensburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbiota can exert immunomodulatory effects by short-chain fatty acids (SCFA) in experimental models of graft-versus-host disease (GvHD) after allogeneic hematopoietic stem cell transplantation (allo-SCT). Therefore we aimed to analyze the expression of SCFAs sensing G-protein coupled receptor GPR109A and GPR43 by quantitative PCR in 338 gastrointestinal (GI) biopsies obtained from 199 adult patients undergoing allo-SCT and assessed the interaction of GPR with FOXP3 expression and regulatory T cell infiltrates. GPR expression was strongly upregulated in patients with stage II-IV GvHD (p=0.000 for GPR109A, p=0.01 for GPR43) and at the onset of GvHD (p 0.000 for GPR109A, p=0.006 for GPR43) and correlated strongly with FOXP3 and NLRP3 expression. The use of broad-spectrum antibiotics (Abx) drastically suppressed GPR expression as well as FOXP3 expression in patients' gut biopsies (p=0.000 for GPRs, FOXP3 mRNA and FOXP3+ cellular infiltrates). Logistic regression analysis revealed treatment with Abx as an independent factor associated with GPR and FOXP3 loss. The upregulation of GPRs was evident only in the absence of Abx (p=0.001 for GPR109A, p=0.014 for GPR43) at GvHD onset. Thus, GPR expression seems to be upregulated in the presence of commensal bacteria and associates with infiltration of FOXP3+ T regs, suggesting a protective, regenerative immunomodulatory response. However, Abx, which has been shown to induce dysbiosis, interferes with this protective response.

Indexed as

AdultAllograftsAnti-Bacterial AgentsBiopsyButyratesCell Line, TumorDendritic CellsDysbiosisEpithelial CellsFatty Acids, VolatileFemaleForkhead Transcription FactorsGastrointestinal MicrobiomeGraft vs Host DiseaseHematopoietic Stem Cell TransplantationHumansAnti-Bacterial AgentsButyratesFatty Acids, VolatileFFAR2 protein, humanForkhead Transcription FactorsFOXP3 protein, humanHCAR2 protein, humanNLR Family, Pyrin Domain-Containing 3 ProteinNLRP3 protein, humanReceptors, Cell SurfaceReceptors, G-Protein-Coupledbroad-spectrum antibioticsFoxp3GPRGvHDmicrobiotaSCFA

Identifiers

PMID34777363
PMCPMC8588834
OpenAlexW3209596196

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.