Evidence map›Paper›PMID 28622534›Full record

ArticleJournal of reproductive immunology2017

Increased expression of toll-like receptors 2 and 9 is associated with reduced DNA methylation in spontaneous preterm labor.

Scott W Walsh, Anuja A Chumble, Sonya L Washington, Kellie J Archer, Sinem E Sahingur, Jerome F Strauss

Abstract read
In one paragraph

Article in Journal of reproductive immunology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Multiomic immune clockworks of pregnancy.Seminars in immunopathology · 2020
    Review
  8. Fetal Membrane Epigenetics.Frontiers in physiology · 2020
    Review
  9. Article
  10. Article
  11. Article
  12. Article
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.

Scott W WalshDepartments of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, 23298-0034, USA; Departments of Physiology and Biophysics, Virginia Commonwealth University, Richmond, VA, 23298, USA. Electronic address: Scott.Walsh@vcuhealth.org.
Anuja A ChumbleDepartment of Periodontics, School of Dentistry, Virginia Commonwealth University, Richmond, VA, 23298, USA.
Sonya L WashingtonDepartments of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, 23298-0034, USA.
Kellie J ArcherDepartments of Biostatistics, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA.
Sinem E SahingurDepartment of Periodontics, School of Dentistry, Virginia Commonwealth University, Richmond, VA, 23298, USA.
Jerome F StraussDepartments of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, 23298-0034, USA.

Funding

VCU NIMHD Comprehensive Center of Excellence (Project 1; PI: Strauss)P60MD002256 · NIMHD · VIRGINIA COMMONWEALTH UNIVERSITY · PI BRADLEY, CATHY J · 2007 to 2016
$13.1M
Oxidant Stress Mechanisms in PreeclampsiaR01HL069851 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI WALSH, SCOTT W · 2003 to 2013
$2.7M
Microbial Nucleic Acid Sensing in PeriodontitisR01DE025037 · NIDCR · VIRGINIA COMMONWEALTH UNIVERSITY · PI SAHINGUR, SINEM ESRA · 2015 to 2019
$1.9M
Admixture Mapping of Preterm Birth GenesR01HD073555 · NICHD · VIRGINIA COMMONWEALTH UNIVERSITY · PI STRAUSS, JEROME F · 2012 to 2016
$1.7M
Inflammatory responses initiated by periodontal bacterial DNAR03DE022836 · NIDCR · VIRGINIA COMMONWEALTH UNIVERSITY · PI SAHINGUR, SINEM ESRA · 2013 to 2014
$229k
NHLBI NIH HHS R01 HL069851NICHD NIH HHS R01 HD073555NIDCR NIH HHS R01 DE025037NIDCR NIH HHS R03 DE022836NIMHD NIH HHS P60 MD002256
6 · The paper itself

Abstract

The cause of spontaneous preterm labor (sPTL) is not known, but it could be due to epigenetic alterations that increase the sensitivity of decidual tissue to inflammatory stimuli. We collected decidual tissue from women at term not in labor (TNL), women at term in labor (TL), and women with sPTL. Illumina Infinium HumanMethylation450 BeadChip analysis revealed significantly reduced DNA methylation for TLR-2 and TLR-9 in sPTL as compared to TL. Immunohistochemical staining documented significantly increased expression of TLR-2 and TLR-9 in decidual tissue of women with sPTL as compared to TL or TNL. TLR expression was not present in decidual cells, but localized to tissue leukocytes as revealed by staining for CD14, a macrophage antigen, and neutrophil elastase. Microarray analysis of inflammatory genes to assess innate immune response demonstrated marked increases in expression of inflammatory cytokines and chemokines in women with TL as compared to TNL. However, when sPTL was compared to TL, there was a further increase in inflammatory cytokines, and a remarkable increase in neutrophil chemokines. These results suggest that epigenetic mechanisms could play a role in increasing leukocyte infiltration, and increasing the sensitivity of decidual tissue to inflammatory stimuli that could precipitate labor prematurely.

Indexed as

AdultCell MovementCells, CulturedCytokinesDeciduaDNA MethylationEpigenesis, GeneticFemaleHumansImmunity, InnateInflammationLipopolysaccharide ReceptorsMacrophagesObstetric Labor, PrematureOligonucleotide Array Sequence AnalysisPregnancyCytokinesLipopolysaccharide ReceptorsTLR2 protein, humanTLR9 protein, humanToll-Like Receptor 2Toll-Like Receptor 9DeciduaDNA methylationMacrophagesNeutrophilsPreterm laborToll-like receptors

Identifiers

PMID28622534
PMCPMC5533291

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.