Evidence map›Paper›PMID 28674422›Full record

ArticleScientific reports2017

Increased methylation and decreased expression of homeobox genes TLX1, HOXA10 and DLX5 in human placenta are associated with trophoblast differentiation.

Boris Novakovic, Thierry Fournier, Lynda K Harris, Joanna James, Claire T Roberts, Hannah E J Yong, Bill Kalionis, Danièle Evain-Brion, Peter R Ebeling, Euan M Wallace and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

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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

12 authors at 8 institutions in 4 countries.

Boris NovakovicCancer and Disease Epigenetics, Murdoch Childrens Research Institute, Royal Children's Hospital, Victoria, Australia.
Thierry FournierINSERM, UMR-S1139, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France.
Lynda K HarrisManchester Pharmacy School, The University of Manchester, Manchester, UK.ORCID 0000-0001-7709-5202
Joanna JamesDepartment of Obstetrics and Gynaecology, University of Auckland, Auckland, New Zealand.
Claire T RobertsRobinson Research Institute, and Adelaide Medical School, University of Adelaide, North Adelaide, South Australia, Australia.
Hannah E J YongDepartment of Maternal-Fetal Medicine Pregnancy Research Centre, The Royal Women's Hospital, and Department of Obstetrics and Gynaecology, University of Melbourne, Victoria, Australia.
Bill KalionisDepartment of Maternal-Fetal Medicine Pregnancy Research Centre, The Royal Women's Hospital, and Department of Obstetrics and Gynaecology, University of Melbourne, Victoria, Australia.
Danièle Evain-BrionINSERM, UMR-S1139, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France.
Peter R EbelingDepartment of Medicine, School of Clinical Sciences, Monash University, Victoria, Australia.
Euan M WallaceThe Ritchie Centre, Hudson Institute of Medical Research, Victoria, Australia.ORCID 0000-0002-4506-5233
Richard SafferyCancer and Disease Epigenetics, Murdoch Childrens Research Institute, Royal Children's Hospital, Victoria, Australia.ORCID 0000-0002-9510-4181
Padma MurthiDepartment of Maternal-Fetal Medicine Pregnancy Research Centre, The Royal Women's Hospital, and Department of Obstetrics and Gynaecology, University of Melbourne, Victoria, Australia. padma.murthi@monash.edu.ORCID 0000-0003-2535-5134
Royal Women's Hospital · AUDélégation Paris 5 · FRRoyal Children's Hospital · AUHudson Institute of Medical Research · AUMonash University · AUThe University of Adelaide · AUUniversity of Auckland · NZUniversity of Manchester · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H022627/1
6 · The paper itself

Abstract

Homeobox genes regulate embryonic and placental development, and are widely expressed in the human placenta, but their regulatory control by DNA methylation is unclear. DNA methylation analysis was performed on human placentae from first, second and third trimesters to determine methylation patterns of homeobox gene promoters across gestation. Most homeobox genes were hypo-methylated throughout gestation, suggesting that DNA methylation is not the primary mechanism involved in regulating HOX genes expression in the placenta. Nevertheless, several genes showed variable methylation patterns across gestation, with a general trend towards an increase in methylation over gestation. Three genes (TLX1, HOXA10 and DLX5) showed inverse gains of methylation with decreasing mRNA expression throughout pregnancy, supporting a role for DNA methylation in their regulation. Proteins encoded by these genes were primarily localised to the syncytiotrophoblast layer, and showed decreased expression later in gestation. siRNA mediated downregulation of DLX5, TLX1 and HOXA10 in primary term villous cytotrophoblast resulted in decreased proliferation and increased expression of differentiation markers, including ERVW-1. Our data suggest that loss of DLX5, TLX1 and HOXA10 expression in late gestation is required for proper placental differentiation and function.

Indexed as

DNA MethylationCell DifferentiationCells, CulturedChromosome MappingFemaleGene Expression RegulationGenes, HomeoboxGestational AgeHomeobox A10 ProteinsHomeodomain ProteinsHumansMultigene FamilyPlacentaPregnancyProto-Oncogene ProteinsTranscription FactorsDLX5 protein, humanHomeobox A10 ProteinsHomeodomain ProteinsHOXA10 protein, humanProto-Oncogene ProteinsTLX1 protein, humanTranscription Factors

Identifiers

PMID28674422
PMCPMC5495813
OpenAlexW2732463977

What OpenQuestion holds

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LicenceCC BY
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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.