Evidence map›Paper›PMID 24915454›Full record

ArticlePloS one2014

The intestinal archaea Methanosphaera stadtmanae and Methanobrevibacter smithii activate human dendritic cells.

Corinna Bang, Katrin Weidenbach, Thomas Gutsmann, Holger Heine, Ruth A Schmitz

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

91 citing papers in PubMed, 167 citations in OpenAlex.

  1. Gut archaea drive human MAIT cell responses.bioRxiv : the preprint server for biology · 2026
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  18. Heliyon · 2024
    Review
  19. The Human Microbiome-A Physiologic Perspective.Comprehensive Physiology · 2024
    Review
  20. Review

31 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

5 authors at 3 institutions in 1 country.

Corinna BangInstitute for General Microbiology, Christian-Albrechts-University Kiel, Kiel, Germany.
Katrin WeidenbachInstitute for General Microbiology, Christian-Albrechts-University Kiel, Kiel, Germany.
Thomas GutsmannDivision of Biophysics, Research Center Borstel, Borstel, Germany.
Holger HeineDivision of Innate Immunity, Research Center Borstel, Airway Research Center North, Member of the German Center for Lung Research (DZL), Borstel, Germany.
Ruth A SchmitzInstitute for General Microbiology, Christian-Albrechts-University Kiel, Kiel, Germany.
Christian-Albrechts-Universität zu Kiel · DEGerman Center for Lung Research · DEResearch Center Borstel - Leibniz Lung Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The methanoarchaea Methanosphaera stadtmanae and Methanobrevibacter smithii are known to be part of the indigenous human gut microbiota. Although the immunomodulatory effects of bacterial gut commensals have been studied extensively in the last decade, the impact of methanoarchaea in human's health and disease was rarely examined. Consequently, we studied and report here on the effects of M. stadtmanae and M. smithii on human immune cells. Whereas exposure to M. stadtmanae leads to substantial release of proinflammatory cytokines in monocyte-derived dendritic cells (moDCs), only weak activation was detected after incubation with M. smithii. Phagocytosis of M. stadtmanae by moDCs was demonstrated by confocal microscopy as well as transmission electronic microscopy (TEM) and shown to be crucial for cellular activation by using specific inhibitors. Both strains, albeit to different extents, initiate a maturation program in moDCs as revealed by up-regulation of the cell-surface receptors CD86 and CD197 suggesting additional activation of adaptive immune responses. Furthermore, M. stadtmanae and M. smithii were capable to alter the gene expression of antimicrobial peptides in moDCs to different extents. Taken together, our findings strongly argue that the archaeal gut inhabitants M. stadtmanae and M. smithii are specifically recognized by the human innate immune system. Moreover, both strains are capable of inducing an inflammatory cytokine response to different extents arguing that they might have diverse immunomodulatory functions. In conclusion, we propose that the impact of intestinal methanoarchaea on pathological conditions involving the gut microbiota has been underestimated until now.

Indexed as

Antimicrobial Cationic PeptidesCytokinesDendritic CellsEpithelial CellsGene Expression RegulationHEK293 CellsHumansIntestinesMethanobacteriaceaeMethanobrevibacterMonocytesPhagocytosisReceptors, Cell SurfaceAntimicrobial Cationic PeptidesCytokinesReceptors, Cell Surface

Identifiers

PMID24915454
PMCPMC4051749
OpenAlexW1981599889

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.