Evidence map›Paper›PMID 25753288›Full record

ArticleStem cells (Dayton, Ohio)2015

PI3kα and STAT1 Interplay Regulates Human Mesenchymal Stem Cell Immune Polarization.

Marwan Mounayar, Eirini Kefaloyianni, Brian Smith, Zhabiz Solhjou, Omar H Maarouf, Jamil Azzi, Lola Chabtini, Paolo Fiorina, Morey Kraus, Robert Briddell and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Stem cells (Dayton, Ohio), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
4.2field-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

49 citing papers in PubMed, 70 citations in OpenAlex.

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  13. Stem Cell-Based Therapies for Inflammatory Bowel Disease.International 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

13 authors at 4 institutions in 1 country.

Marwan MounayarTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Eirini KefaloyianniBrigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Brian SmithTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Zhabiz SolhjouTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Omar H MaaroufTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Jamil AzziTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Lola ChabtiniTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Paolo FiorinaTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Morey KrausViacord LLC, A PerkinElmer Company, Cambridge, Massachusetts, USA.
Robert BriddellViaCord Processing Lab, ViaCord LLC, A PerkinElmer Company, Hebron, Kentucky, USA.
William FodorThe Cell Therapy Group, Madison, Connecticut, USA.
Andreas HerrlichBrigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Reza AbdiTransplantation Research Center, Brigham and Women's and Children's Hospital, Boston, Massachusetts, USA.
Brigham and Women's Hospital · USBoston Children's Hospital · USPerkinElmer (United States) · USHarvard University · US

Funding

TRAINING PROGRAM IN ACADEMIC NEPHROLOGYT32DK007527 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI BONVENTRE, JOSEPH VINCENT · 1986 to 2021
$8.8M
Ischemia-reperfusion injury in transplantation: novel cytoprotection strategiesR01AI091930 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI ABDI, REZA · 2011 to 2015
$2.1M
Identification of novel genes regulating metalloproteinase activityR00DK077731 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI HERRLICH, ANDREAS · 2010 to 2012
$738k
NIAID NIH HHS R01 5R01AI091930-02NIAID NIH HHS R01 AI091930NIDDK NIH HHS R00 DK077731NIDDK NIH HHS T32 DK007527
6 · The paper itself

Abstract

The immunomodulatory capacity of mesenchymal stem cells (MSCs) is critical for their use in therapeutic applications. MSC response to specific inflammatory cues allows them to switch between a proinflammatory (MSC1) or anti-inflammatory (MSC2) phenotype. Regulatory mechanisms controlling this switch remain to be defined. One characteristic feature of MSC2 is their ability to respond to IFNγ with induction of indoleamine 2,3-dioxygenase (IDO), representing the key immunoregulatory molecule released by human MSC. Here, we show that STAT1 and PI3Kα pathways interplay regulates IFNγ-induced IDO production in MSC. Chemical phosphoinositide 3-kinase (PI3K) pan-inhibition, PI3Kα-specific inhibition or shRNA knockdown diminished IFNγ-induced IDO production. This effect involved PI3Kα-mediated upregulation of STAT1 protein levels and phosphorylation at Ser727. Overexpression of STAT1 or of a constitutively active PI3Kα mutant failed to induce basal IDO production, but shifted MSC into an MSC2-like phenotype by strongly enhancing IDO production in response to IFNγ as compared to controls. STAT1 overexpression strongly enhanced MSC-mediated T-cell suppression. The same effect could be induced using short-term pretreatment of MSC with a chemical inhibitor of the counter player of PI3K, phosphatase and tensin homolog. Finally, downregulation of STAT1 abrogated the immunosuppressive capacity of MSC. Our results for the first time identify critical upstream signals for the induced production of IDO in MSCs that could be manipulated therapeutically to enhance their immunosuppressive phenotype.

Indexed as

Cell DifferentiationClass I Phosphatidylinositol 3-KinasesDown-RegulationHumansInterferon-gammaMesenchymal Stem CellsPhosphatidylinositol 3-KinasesSTAT1 Transcription FactorSTAT3 Transcription FactorUp-RegulationClass I Phosphatidylinositol 3-KinasesInterferon-gammaPhosphatidylinositol 3-KinasesPIK3CA protein, humanSTAT1 protein, humanSTAT1 Transcription FactorSTAT3 Transcription FactorCell signalingImmunosuppressionImmunotherapyInterferon gammaMesenchymal stem cellsPI3K alphaSTAT1T cells

Identifiers

PMID25753288
PMCPMC4976699
OpenAlexW1919100089

What OpenQuestion holds

Textmetadata
LicenceTDM
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.