Evidence map›Paper›PMID 34371919›Full record

ArticleNutrients2021

Caffeine Has Different Immunomodulatory Effect on the Cytokine Expression and NLRP3 Inflammasome Function in Various Human Macrophage Subpopulations.

Elek Gergő Kovács, Ahmad Alatshan, Marietta Margit Budai, Zsolt Czimmerer, Eduárd Bíró, Szilvia Benkő

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. Trial
  2. Ups and downs in the experimental treatment of murine typhoid fever using gentamicin combined with caffeine.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
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  16. AInternational journal of molecular sciences · 2022
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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

6 authors at 1 institution in 1 country.

Elek Gergő KovácsDepartments of Physiology, Faculty of Medicine, University of Debrecen, H-4012 Debrecen, Hungary.
Ahmad AlatshanDepartments of Physiology, Faculty of Medicine, University of Debrecen, H-4012 Debrecen, Hungary.ORCID 0000-0002-4401-8742
Marietta Margit BudaiDepartments of Physiology, Faculty of Medicine, University of Debrecen, H-4012 Debrecen, Hungary.
Zsolt CzimmererDepartment of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary.
Eduárd BíróDepartments of Physiology, Faculty of Medicine, University of Debrecen, H-4012 Debrecen, Hungary.
Szilvia BenkőDepartments of Physiology, Faculty of Medicine, University of Debrecen, H-4012 Debrecen, Hungary.ORCID 0000-0001-7356-6345
University of Debrecen · HU

Funding

Debreceni Egyetem 1G3DBKD0TUDF 247Nemzeti Kutatási Fejlesztési és Innovációs Hivatal FK132185Nemzeti Kutatási Fejlesztési és Innovációs Hivatal K131844
6 · The paper itself

Abstract

Besides its well-known psychoactive effects, caffeine has a broad range of actions. It regulates several physiological mechanisms as well as modulates both native and adaptive immune responses by various ways. Although caffeine is assumed to be a negative regulator of inflammation, the effect on the secretion of pro- and anti-inflammatory cytokines is highly controversial. Macrophages are major mediators of inflammatory responses; however, the various subpopulations develop different effects ranging from the initiation to the resolution of inflammation. Here we report a comparative analysis of the effect of caffeine on two subpopulations of human monocyte-derived macrophages differentiated in the presence of macrophage colony-stimulating factor (M-CSF) or granulocyte-macrophage colony-stimulating factor (GM-CSF), resulting in M-MΦs and GM-MΦs, respectively. We showed that although TNF-α secretion was downregulated in both LPS-activated MΦ subtypes by caffeine, the secretion of IL-8, IL-6, and IL-1β as well as the expression of Nod-like receptors was enhanced in M-MΦs, while it did not change in GM-MΦs. We showed that caffeine (1) altered adenosine receptor expression, (2) changed Akt/AMPK/mTOR signaling pathways, and (3) inhibited STAT1/IL-10 signaling axis in M-MΦs. We hypothesized that these alterations play an important modulatory role in the upregulation of NLRP3 inflammasome-mediated IL-1β secretion in LPS-activated M-MΦs following caffeine treatment.

Indexed as

AMP-Activated Protein KinasesCaffeineCells, CulturedCytokinesHumansImmunologic FactorsInflammasomesInflammation MediatorsMacrophage ActivationMacrophagesNLR Family, Pyrin Domain-Containing 3 ProteinPhenotypeReceptor, Adenosine A2AReceptor, Adenosine A2BSignal TransductionSTAT1 Transcription FactorADORA2A protein, humanADORA2B protein, humanAMP-Activated Protein KinasesCaffeineCytokinesImmunologic FactorsInflammasomesInflammation MediatorsMTOR protein, humanNLR Family, Pyrin Domain-Containing 3 ProteinNLRP3 protein, humanReceptor, Adenosine A2AReceptor, Adenosine A2BSTAT1 protein, humanSTAT1 Transcription FactorTOR Serine-Threonine KinasescaffeinecytokinesinflammationmacrophagesNLRP3 inflammasomesignaling

Identifiers

PMID34371919
PMCPMC8308523
OpenAlexW3180408004

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.