Evidence map›Paper›PMID 35476530›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Inefficient development of syncytiotrophoblasts in the

Yuki Ochiai, Chigure Suzuki, Katsumori Segawa, Yasuo Uchiyama, Shigekazu Nagata

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
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  5. Article
  6. Phospholipid flippase ATP11A brokers uterine epithelial integrity and function.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Trophoblast Fusion in Hypertensive Disorders of Pregnancy and Preeclampsia.International journal of molecular sciences · 2025
    Review
  8. Review
  9. Review
  10. Genetic and Environmental Contributors To Congenital Heart Disease.Current treatment options in cardiovascular medicine · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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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

5 authors at 2 institutions in 1 country.

Yuki OchiaiLaboratory of Biochemistry and Immunology, Immunology Frontier Research Center, Osaka University, Suita 565-0871, Japan.
Chigure SuzukiDepartment of Cellular and Molecular Pharmacology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan.
Katsumori SegawaLaboratory of Biochemistry and Immunology, Immunology Frontier Research Center, Osaka University, Suita 565-0871, Japan.
Yasuo UchiyamaDepartment of Cellular and Molecular Pharmacology, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan.
Shigekazu NagataLaboratory of Biochemistry and Immunology, Immunology Frontier Research Center, Osaka University, Suita 565-0871, Japan.ORCID 0000-0001-9758-8426
The University of Osaka · JPJuntendo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The P4-ATPases ATP11A and ATP11C function as flippases at the plasma membrane to translocate phosphatidylserine from the outer to the inner leaflet. We herein demonstrated that Atp11a-deficient mouse embryos died at approximately E14.5 with thin-walled heart ventricles. However, the cardiomyocyte- or epiblast-specific Atp11a deletion did not affect mouse development or mortality. ATP11C may have compensated for the function of ATP11A in most of the cell types in the embryo. On the other hand, Atp11a, but not Atp11c, was expressed in the mouse placenta, and the Atp11a-null mutation caused poor development of the labyrinthine layer with an increased number of TUNEL-positive foci. Immunohistochemistry and electron microscopy revealed a disorganized labyrinthine layer with unfused trophoblasts in the Atp11a-null placenta. Human placenta-derived choriocarcinoma BeWo cells expressed the ATP11A and ATP11C genes. A lack of ATP11A and ATP11C eliminated the ability of BeWo cells to flip phosphatidylserine and fuse when treated with forskolin. These results indicate that flippases at the plasma membrane play an important role in the formation of syncytiotrophoblasts in placental development.

Indexed as

PlacentaTrophoblastsAdenosine TriphosphatasesAnimalsATP Binding Cassette Transporter 1Cell MembraneFemaleMicePhosphatidylserinesPregnancyAbca1 protein, mouseAdenosine TriphosphatasesATP Binding Cassette Transporter 1Phosphatidylserinescell fusionflippasephosphatidylserineplacentatrophoblast

Identifiers

PMID35476530
PMCPMC9170144
OpenAlexW4225093802

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.