Evidence map›Paper›PMID 19706390›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Establishment of trophoblast stem cell lines from somatic cell nuclear-transferred embryos.

Mayumi Oda, Satoshi Tanaka, Yukiko Yamazaki, Hiroshi Ohta, Misa Iwatani, Masako Suzuki, Jun Ohgane, Naka Hattori, Ryuzo Yanagimachi, Teruhiko Wakayama and 1 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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

13 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Organoids as Novel Models for Embryo Implantation Study.Reproductive sciences (Thousand Oaks, Calif.) · 2021
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Recent advancements in cloning by somatic cell nuclear transfer.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
  12. Trophoblast stem cells derived from nuclear transfer embryos: phenotypically unique, bad neighbors, or poor communicators?Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  13. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Mayumi OdaLaboratory of Cellular Biochemistry, Animal Resource Sciences/Veterinary Medical Sciences, University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan.
Satoshi Tanaka
Yukiko Yamazaki
Hiroshi Ohta
Misa Iwatani
Masako Suzuki
Jun Ohgane
Naka Hattori
Ryuzo Yanagimachi
Teruhiko Wakayama
Kunio Shiota

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Placental abnormalities occur frequently in cloned animals. Here, we attempted to isolate trophoblast stem (TS) cells from mouse blastocysts produced by somatic cell nuclear transfer (NT) at the blastocyst stage (NT blastocysts). Despite the predicted deficiency of the trophoblast cell lineage, we succeeded in isolating cell colonies with typical morphology of TS cells and cell lines from the NT blastocysts (ntTS cell lines) with efficiency as high as that from native blastocysts. The established 10 ntTS cell lines could be maintained in the undifferentiated state and induced to differentiate into several trophoblast subtypes in vitro. A comprehensive analysis of the transcriptional and epigenetic traits demonstrated that ntTS cells were indistinguishable from control TS cells. In addition, ntTS cells contributed exclusively to the placenta and survived until term in chimeras, indicating that ntTS cells have developmental potential as stem cells. Taken together, our data show that NT blastocysts contain cells that can produce TS cells in culture, suggesting that proper commitment to the trophoblast cell lineage in NT embryos occurs by the blastocyst stage.

Indexed as

Nuclear Transfer TechniquesAnimalsBlastocystBlotting, NorthernCell DifferentiationCell LineCell LineageCellular ReprogrammingEmbryo, MammalianFemaleGene Expression ProfilingMiceOligonucleotide Array Sequence AnalysisSpectral KaryotypingStem CellsTrophoblasts

Identifiers

PMID19706390
PMCPMC2752548

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.