Evidence map›Paper›PMID 35796428›Full record

ArticleeLife2022

Regionally distinct trophoblast regulate barrier function and invasion in the human placenta.

Bryan Marsh, Yan Zhou, Mirhan Kapidzic, Susan Fisher, Robert Blelloch

Open access · goldAbstract read
In one paragraph

Article in eLife, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  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 1 institution in 1 country.

Bryan MarshThe Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell, University of California, San Francisco, San Francisco, United States.ORCID 0000-0002-4979-5233
Yan ZhouThe Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell, University of California, San Francisco, San Francisco, United States.
Mirhan KapidzicThe Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell, University of California, San Francisco, San Francisco, United States.
Susan FisherThe Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell, University of California, San Francisco, San Francisco, United States.
Robert BlellochThe Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell, University of California, San Francisco, San Francisco, United States.ORCID 0000-0002-1975-0798
University of California, San Francisco · US

Funding

Project 4: Human Endometrial Programming for Successful ImplantationP50HD055764 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GIUDICE, LINDA C · 2014 to 2022
$16.4M
PREDOCTORAL TRAINING IN DEVELOPMENTAL BIOLOGYT32HD007470 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Todd Nystul · 1994 to 2026
$7.7M
Dissecting gene dysregulation at the maternal-fetal interface in preeclampsiaR37HD076253 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FISHER, SUSAN J. · 2013 to 2022
$3.4M
NICHD NIH HHS P50 HD055764NICHD NIH HHS R37 HD076253NICHD NIH HHS T32 HD007470
6 · The paper itself

Abstract

The human placenta contains two specialized regions: the villous chorion where gases and nutrients are exchanged between maternal and fetal blood, and the smooth chorion (SC) which surrounds more than 70% of the developing fetus but whose cellular composition and function is poorly understood. Here, we use single cell RNA-sequencing to compare the cell types and molecular programs between these two regions in the second trimester human placenta. Each region consists of progenitor cytotrophoblasts (CTBs) and extravillous trophoblasts (EVTs) with similar gene expression programs. While CTBs in the villous chorion differentiate into syncytiotrophoblasts, they take an alternative trajectory in the SC producing a previously unknown CTB population which we term SC-specific CTBs (SC-CTBs). Marked by expression of region-specific cytokeratins, the SC-CTBs form a stratified epithelium above a basal layer of progenitor CTBs. They express epidermal and metabolic transcriptional programs consistent with a primary role in defense against physical stress and pathogens. Additionally, we show that SC-CTBs closely associate with EVTs and secrete factors that inhibit the migration of the EVTs. This restriction of EVT migration is in striking contrast to the villous region where EVTs migrate away from the chorion and invade deeply into the decidua. Together, these findings greatly expand our understanding of CTB differentiation in these distinct regions of the human placenta. This knowledge has broad implications for studies of the development, functions, and diseases of the human placenta.

Indexed as

PlacentationTrophoblastsCell DifferentiationFemaleHumansPlacentaPregnancydevelopmental biologydifferentiationhumanhuman developmentplacenta

Identifiers

PMID35796428
PMCPMC9323019
OpenAlexW4284666964

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.