Evidence map›Paper›PMID 22921399›Full record

ArticleCell reports2012

Direct differentiation of human pluripotent stem cells into haploid spermatogenic cells.

Charles A Easley, Bart T Phillips, Megan M McGuire, Jennifer M Barringer, Hanna Valli, Brian P Hermann, Calvin R Simerly, Aleksander Rajkovic, Toshio Miki, Kyle E Orwig and 1 more

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed
9.7field-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

131 citing papers in PubMed, 274 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. NAM journal · 2025
    Review
  11. A new humanHuman reproduction open · 2025
    Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Induction of Meiosis from Human Pluripotent Stem Cells.bioRxiv : the preprint server for biology · 2024
    Article
  19. Review
  20. Article

71 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

11 authors at 4 institutions in 1 country.

Charles A EasleyDepartment of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15108, USA.
Bart T Phillips
Megan M McGuire
Jennifer M Barringer
Hanna Valli
Brian P Hermann
Calvin R Simerly
Aleksander Rajkovic
Toshio Miki
Kyle E Orwig
Gerald P Schatten
Magee-Womens Research Institute · USUniversity of Pittsburgh · USThe University of Texas at San Antonio · USUniversity of Southern California · US

Funding

PRIMATE RESOURCESP01HD047675 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI SCHATTEN, GERALD · 2005 to 2010
$15.5M
Frontiers in Alzheimer's and Aging Research (FrA2R)R25AG043365 · NIA · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI GERALD SCHATTEN · 2012 to 2026
$5.8M
EGG-MEDIATED MOTILITY DURING FERTILIZATIONR37HD012913 · NICHD · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI SCHATTEN, GERALD · 1997 to 2006
$4.2M
Characterization of male germline stem cells in a rhesus model of infertilityR01HD055475 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI ORWIG, KYLE EDWIN · 2008 to 2012
$3.5M
Frontiers in Stem Cells in Cancer(FriSC2)R25CA163168 · NCI · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI SCHATTEN, GERALD · 2011 to 2020
$3.1M
Transcriptional regulatory networks in spermatogonial stem cellsR00HD062687 · NICHD · UNIVERSITY OF TEXAS SAN ANTONIO · PI HERMANN, BRIAN PETER · 2011 to 2013
$879k
Frontiers in Stem Cells and RegenerationU13HD061150 · NICHD · MARINE BIOLOGICAL LABORATORY · PI SCHATTEN, GERALD · 2009 to 2013
$519k
New Fertility Preserving Option for Male Cancer SurvivorsR21HD061289 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI ORWIG, KYLE EDWIN · 2010 to 2011
$425k
Rehabilitative and Regenerative Medicine for Minority Health & Health DisparitiesT15HD072833 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI SCHATTEN, GERALD · 2012 to 2014
$390k
Transcriptional regulatory networks in spermatogonial stem cellsK99HD062687 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI HERMANN, BRIAN PETER · 2010 to 2011
$221k
NCI NIH HHS R25 CA163168NIA NIH HHS R25 AG043365NICHD NIH HHS K99 HD062687NICHD NIH HHS P01 HD047675NICHD NIH HHS P01HD047675NICHD NIH HHS R00 HD062687NICHD NIH HHS R01 HD055475NICHD NIH HHS R01HD055475NICHD NIH HHS R21 HD061289NICHD NIH HHS R21HD061289NICHD NIH HHS R37 HD012913NICHD NIH HHS T15 HD072833NICHD NIH HHS U13 HD061150
6 · The paper itself

Abstract

Human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) have been shown to differentiate into primordial germ cells (PGCs) but not into spermatogonia, haploid spermatocytes, or spermatids. Here, we show that hESCs and hiPSCs differentiate directly into advanced male germ cell lineages, including postmeiotic, spermatid-like cells, in vitro without genetic manipulation. Furthermore, our procedure mirrors spermatogenesis in vivo by differentiating PSCs into UTF1-, PLZF-, and CDH1-positive spermatogonia-like cells; HIWI- and HILI-positive spermatocyte-like cells; and haploid cells expressing acrosin, transition protein 1, and protamine 1 (proteins that are uniquely found in spermatids and/or sperm). These spermatids show uniparental genomic imprints similar to those of human sperm on two loci: H19 and IGF2. These results demonstrate that male PSCs have the ability to differentiate directly into advanced germ cell lineages and may represent a novel strategy for studying spermatogenesis in vitro.

Indexed as

HaploidyAnimalsCell DifferentiationCell LineHumansMaleMicePluripotent Stem CellsSpermatidsSpermatocytesSpermatogenesisTranscription FactorsTranscription Factors

Identifiers

PMID22921399
PMCPMC3698576
OpenAlexW2111082371

What OpenQuestion holds

Textmetadata
LicenceTDM
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.