Evidence map›Paper›PMID 22046053›Full record

ArticleReproduction (Cambridge, England)2012

Caspase-mediated apoptosis of trophoblasts in term human placental villi is restricted to cytotrophoblasts and absent from the multinucleated syncytiotrophoblast.

Mark S Longtine, Baosheng Chen, Anthony O Odibo, Yan Zhong, D Michael Nelson

Open access · bronzeAbstract read
In one paragraph

Article in Reproduction (Cambridge, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
6.1field-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

27 citing papers in PubMed, 66 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Maternal-fetal cross talk through cell-free fetal DNA, telomere shortening, microchimerism, and inflammation.American journal of reproductive immunology (New York, N.Y. : 1989) · 2018
    Review
  11. Article
  12. Evidence for Differential Glycosylation of Trophoblast Cell Types.Molecular & cellular proteomics : MCP · 2016
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Oxygen metabolism in human placenta mitochondria.Journal of bioenergetics and biomembranes · 2014
    Article
  18. Article
  19. Article
  20. 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

5 authors at 4 institutions in 2 countries.

Mark S LongtineDepartment of Obstetrics and Gynecology, School of Medicine, Washington University, 4566 Scott Avenue, St Louis, MO 63110, USA. longtine@wudosis.wustl.edu
Baosheng Chen
Anthony O Odibo
Yan Zhong
D Michael Nelson
Second Xiangya Hospital of Central South University · CNCentral South University · CNUniversity of Washington · USWashington University in St. Louis · US

Funding

PLACENTAL TROPHOBLAST, EICOSANOIDS, AND PREECLAMPSIAR01HD029190 · NICHD · WASHINGTON UNIVERSITY · PI NELSON, DONALD MICHAEL · 1994 to 2011
$2.3M
NICHD NIH HHS R01 HD029190NICHD NIH HHS R01-HD29190
6 · The paper itself

Abstract

Human placental villi are surfaced by a multinucleated and terminally differentiated epithelium, the syncytiotrophoblast, with a subjacent layer of mononucleated cytotrophoblasts that can divide and fuse to replenish the syncytiotrophoblast. The objectives of this study were i) to develop an approach to definitively identify and distinguish cytotrophoblasts from the syncytiotrophoblast, ii) to unambiguously determine the relative susceptibility of villous cytotrophoblasts and syncytiotrophoblast to constitutive and stress-induced apoptosis mediated by caspases, and iii) to understand the progression of apoptosis in villous trophoblasts. Confocal microscopy with co-staining for E-cadherin and DNA allowed us to clearly distinguish the syncytiotrophoblast from cytotrophoblasts and identified that many cytotrophoblasts are deeply interdigitated into the syncytiotrophoblast. Staining for specific markers of caspase-mediated apoptosis indicate that apoptosis occurs readily in cytotrophoblasts but is remarkably inhibited in the syncytiotrophoblast. To determine if an apoptotic cell or cell fragment was from a cytotrophoblast or syncytiotrophoblast, we found co-staining with E-cadherin along with a marker for apoptosis was essential: in the absence of E-cadherin staining, apoptotic cytotrophoblasts would easily be mistaken as representing localized regions of apoptosis in the syncytiotrophoblast. Regions with perivillous fibrin-containing fibrinoid contain the remnants of trophoblast apoptosis, and we propose this apoptosis occurs only after physical isolation of a region of the syncytium from the main body of the syncytium. We propose models for the progression of apoptosis in villous cytotrophoblasts and for why caspase-mediated apoptosis does not occur within the syncytium of placental villi.

Indexed as

ApoptosisBiological Transport, ActiveCadherinsCaspase 8Chorionic VilliEnzyme ActivationFemaleGiant CellsHumansKeratin-18Microscopy, ConfocalMicroscopy, FluorescenceModels, BiologicalPoly(ADP-ribose) PolymerasesPregnancyTrophoblastsCadherinsCASP8 protein, humanCaspase 8Keratin-18Poly(ADP-ribose) Polymerases

Identifiers

PMID22046053
PMCPMC3631347
OpenAlexW2006095669

What OpenQuestion holds

Textmetadata
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.