Evidence map›Paper›PMID 30306723›Full record

ArticleImmunity, inflammation and disease2018

ATP promotes immunosuppressive capacities of mesenchymal stromal cells by enhancing the expression of indoleamine dioxygenase.

Ramin Lotfi, Lena Steppe, Regina Hang, Markus Rojewski, Marina Massold, Bernd Jahrsdörfer, Hubert Schrezenmeier

Open access · goldAbstract read
In one paragraph

Article in Immunity, inflammation and disease, 2018. 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
1.2field-weighted citation impact, top 21% 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, 15 citations in OpenAlex.

  1. Review
  2. Immunomodulatory and cardio-protective effects of differentially originated multipotent mesenchymal stroma cells during polymicrobial sepsis in mice.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
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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

7 authors at 1 institution in 1 country.

Ramin LotfiInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.ORCID 0000-0002-8125-0591
Lena SteppeInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.ORCID 0000-0003-0968-5627
Regina HangInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.
Markus RojewskiInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.
Marina MassoldInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.
Bernd JahrsdörferInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.
Hubert SchrezenmeierInstitute for Transfusion Medicine, University of Ulm, Ulm, Germany.
Universität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMSCs are often found within tumors, promote cancer progression and enhance metastasis. MSCs can act as immuosuppressive cells, partially due to the expression of the enzyme indoleamine dioxygenase (IDO) which converts tryptophan to kynurenine. Decreased concentration of tryptophan and increased kynurenine, both interfere with effective immune response. Damage associated molecular patterns (DAMPs) including ATP are found within the tumor microenvironment, attract MSCs, and influence their biology.

methodsBone marrow derived MSCs were exposed to ATP for 4 days, in the presence of 100 ng IFNγ/mL. Intracellular expression of IDO in MSCs was assessed by FACS. Conditioned media from thus stimulated MSCs was analyzed for kynurenine content and its suppressive effect on lymphocyte proliferation. Apyrase or P2 × 7-receptor antagonist (AZ 11645373) were applied in order to inhibit ATP induced effect on MSCs.

resultsWe demonstrate, that ATP at concentrations between 0.062 and 0.5 mM increases dose dependently the expression of IDO in MSCs with subsequent increased kynurenine concentrations within the supernatant at about 60%. This effect could be abolished completely in the presence of ATP degrading enzyme (apyrase) or when MSCs were pretreated with a P2 × 7-receptor antagonist (AZ 11645373). Consistently, supernatants from MSCs stimulated with ATP, inhibited lymphocyte proliferation from 65% to 16%.

conclusionsWe characterized ATP as a DAMP family member responsible for necrosis-induced immunomodulation. Given the increased concentration of DAMPs within tumor tissue and the fact that DAMPs can act as chemotattractants to MSCs, our results have implications for therapeutic strategies targeting the tumor microenvironment.

Indexed as

Immune ToleranceAdenosine TriphosphateApyraseCell ProliferationCells, CulturedCulture Media, ConditionedHumansImmunomodulationIndoleamine-Pyrrole 2,3,-DioxygenaseKynurenineLymphocyte ActivationMesenchymal Stem CellsTryptophanAdenosine TriphosphateApyraseCulture Media, ConditionedIndoleamine-Pyrrole 2,3,-DioxygenaseKynurenineTryptophancancerDAMPsinflammationmesenchymal stromal cellswound healing

Identifiers

PMID30306723
PMCPMC6247240
OpenAlexW2897544704

What OpenQuestion holds

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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.