Evidence map›Paper›PMID 25638730›Full record

ArticlePlacenta2015

Aspirin inhibits expression of sFLT1 from human cytotrophoblasts induced by hypoxia, via cyclo-oxygenase 1.

C Li, N S Raikwar, M K Santillan, D A Santillan, C P Thomas

Open access · greenAbstract readComparative Study
In one paragraph

Article in Placenta, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
4.5field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Pooled it
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  4. Determinants of Placental Versus Maternal Preeclampsia.Hypertension (Dallas, Tex. : 1979) · 2026
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  20. Observational
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 1 institution in 1 country.

C LiDepartment of Obstetrics and Gynecology, Iowa City, IA, USA.
N S RaikwarDivision of Nephrology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
M K SantillanDepartment of Obstetrics and Gynecology, Iowa City, IA, USA.
D A SantillanDepartment of Obstetrics and Gynecology, Iowa City, IA, USA.
C P ThomasDepartment of Obstetrics and Gynecology, Iowa City, IA, USA; Division of Nephrology, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA, USA; Department of Veterans Affairs Medical Center, Iowa City, IA, USA. Electronic address: christie-thomas@uiowa.edu.
University of Iowa · US

Funding

REPRODUCTIVE SCIENTIST TRAINING PROGRAMK12HD000849 · NICHD · WASHINGTON UNIVERSITY · PI Danny J Schust · 1988 to 2026
$33.2M
University of Iowa Clinical and Translational Science Program (KL2)KL2RR024980 · NCRR · UNIVERSITY OF IOWA · PI ROSENTHAL, GARY E · 2007 to 2011
$4.6M
University of Iowa Institute for Clinical and Translational ScienceU54TR001013 · NCATS · UNIVERSITY OF IOWA · PI ROSENTHAL, GARY E · 2014 to 2014
$4.2M
Expression of sFlt1 and its function in the glomerular endotheliumR01DK090053 · NIDDK · UNIVERSITY OF IOWA · PI THOMAS, CHRISTIE P. · 2010 to 2014
$1.6M
NCATS NIH HHS U54 TR001013NCATS NIH HHS U54TR001013NCRR NIH HHS KL2 RR024980NICHD NIH HHS K12 HD000849NIDDK NIH HHS R01 DK090053
6 · The paper itself

Abstract

introductionElevated circulating soluble FLT1 (sFLT1) levels seen in preeclampsia may play a role in its development. Aspirin is recommended for prevention of preeclampsia. We hypothesized that aspirin may inhibit the production of sFlt1.

methodsPlacentas from women with and without preeclampsia were collected. Primary cytotrophoblasts (CTBs) were cultured from normal placentas and treated with aspirin, sc-560, a COX1 inhibitor or celecoxib, a COX2 inhibitor. The expression of sFLT1, FLT1, COX1 and COX2 was studied. The effect of aspirin on sFlt1 expression was also studied in HEK293 cells and in HTR-8/SVNeo cells.

resultsThe expression of sFLT1 was increased in preeclamptic placentas compared to control placentas and the expression and release of sFLT1 increased in CTBs exposed to 2% O2 compared to controls. Aspirin at 3 and 12 mM concentration reduced the expression and release of sFLT1 in CTBs. Aspirin also inhibited sFlt1 expression from HTR-8/SVNeo and HEK293 cells. Sc-560, but not celecoxib, reduced sFLT1 expression and release from CTBs. Aspirin and sc-560 also reduced hypoxia-induced FLT1 mRNA expression and inhibited COX1 mRNA in CTBs. DISCUSSION: This study confirms that sFLT1 expression is increased in preeclamptic placentas and in CTBs exposed to hypoxia. Aspirin inhibits the production sFLT1 in CTBs and in HTR-8/SVNeo. Sc-560 recapitulated the effects of aspirin on sFLT1 expression and release in CTBs suggesting that the aspirin effect may be mediated via inhibition of COX1. The study increases our understanding of the mechanisms regulating sFlt1 expression and provides a plausible explanation for the effect of aspirin to prevent preeclampsia.

Indexed as

AdultAnimalsAnti-Inflammatory Agents, Non-SteroidalAspirinCelecoxibCell HypoxiaCell LineCells, CulturedChlorocebus aethiopsCOS CellsCyclooxygenase 1Cyclooxygenase InhibitorsFemaleGene Expression Regulation, DevelopmentalHumansPre-EclampsiaAnti-Inflammatory Agents, Non-SteroidalAspirinCelecoxibCyclooxygenase 1Cyclooxygenase InhibitorsFLT1 protein, humanPTGS1 protein, humanPyrazolesRecombinant ProteinsSC 560Vascular Endothelial Growth Factor Receptor-1AngiogenesisCytotoxicityGene expressionPlacentaPreeclampsia

Identifiers

PMID25638730
PMCPMC4359945
OpenAlexW2001954148

What OpenQuestion holds

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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.