Evidence map›Paper›PMID 23492904›Full record

ArticleScientific reports2013

A novel human endogenous retroviral protein inhibits cell-cell fusion.

Jun Sugimoto, Makiko Sugimoto, Helene Bernstein, Yoshihiro Jinno, Danny Schust

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
6.9field-weighted citation impact, top 4% 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

74 citing papers in PubMed, 106 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Update on endogenous retroviruses in cattle placenta.The Journal of reproduction and development · 2026
    Review
  7. The human endogenous retroviral envelope HEMO protein interacts with BACE2: Novel partnership acquired in the primate lineage.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Genetic Diversity in theBiomolecules · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Receptor usage of Syncytin-1: ASCT2, but not ASCT1, is a functional receptor and effector of cell fusion in the human placenta.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

14 more citing papers are in PubMed but not listed here.

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 2 countries.

Jun SugimotoUniversity of Missouri-Columbia, Department of Obstetrics, Gynecology and Women's Health, Division of Reproductive Endocrinology and Infertility, 500 North Keene Street, Columbia, MO 65201, USA. jsokiaji1@gmail.com
Makiko Sugimoto
Helene Bernstein
Yoshihiro Jinno
Danny Schust
University of Missouri · USUniversity of the Ryukyus · JP

Funding

Pluripotent Stem Cells: Modeling syncytiotrophoblast development and pathogenesisR01HD077108 · NICHD · UNIVERSITY OF MISSOURI-COLUMBIA · PI EZASHI, TOSHIHIKO, SCHUST, DANNY J · 2013 to 2017
$1.7M
NICHD NIH HHS R01 HD077108
6 · The paper itself

Abstract

While common in viral infections and neoplasia, spontaneous cell-cell fusion, or syncytialization, is quite restricted in healthy tissues. Such fusion is essential to human placental development, where interactions between trophoblast-specific human endogenous retroviral (HERV) envelope proteins, called syncytins, and their widely-distributed cell surface receptors are centrally involved. We have identified the first host cell-encoded protein that inhibits cell fusion in mammals. Like the syncytins, this protein, called suppressyn, is HERV-derived, placenta-specific and well-conserved over simian evolution. In vitro, suppressyn binds to the syn1 receptor and inhibits syn1-, but not syn2-mediated trophoblast syncytialization. Suppressyn knock-down promotes cell-cell fusion in trophoblast cells and cell-associated and secreted suppressyn binds to the syn1 receptor, ASCT2. Identification of the first host cell-encoded inhibitor of mammalian cell fusion may encourage improved understanding of cell fusion mechanisms, of placental morphogenesis and of diseases resulting from abnormal cell fusion.

Indexed as

Amino Acid SequenceAmino Acid Transport System ASCAnimalsBase SequenceBlotting, WesternCell FusionCell LineCell Line, TumorEndogenous RetrovirusesFemaleGene Products, envHumansMinor Histocompatibility AntigensMolecular Sequence DataPlacentaPregnancyAmino Acid Transport System ASCERVH48-1 protein, humanGene Products, envMinor Histocompatibility AntigensPregnancy ProteinsSLC1A5 protein, humanViral Envelope Proteins

Identifiers

PMID23492904
PMCPMC3598002
OpenAlexW2077240012

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.