Evidence map›Paper›PMID 33176123›Full record

ArticleStem cell reports2020

In Vitro Meiosis of Male Germline Stem Cells.

Qijing Lei, Xin Lai, Jitske Eliveld, Susana M Chuva de Sousa Lopes, Ans M M van Pelt, Geert Hamer

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. A Novel Cultivation System for Germ Cell Proliferation and Sustaining Whole Testicular Niche.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Induction of Meiosis from Human Pluripotent Stem Cells.bioRxiv : the preprint server for biology · 2024
    Article
  7. Article
  8. Recent Progress of In Vitro 3D Culture of Male Germ Stem Cells.Journal of functional biomaterials · 2023
    Review
  9. Review
  10. Frontiers in cell and developmental biology · 2023
    Review
  11. Review
  12. Meiotic Chromosome Synapsis and XY-Body FormationFrontiers in endocrinology · 2021
    Article
  13. Article
  14. 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

6 authors at 3 institutions in 1 country.

Qijing LeiCenter for Reproductive Medicine, Reproductive Biology Laboratory, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
Xin LaiCenter for Reproductive Medicine, Reproductive Biology Laboratory, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
Jitske EliveldCenter for Reproductive Medicine, Reproductive Biology Laboratory, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
Susana M Chuva de Sousa LopesDepartment of Anatomy and Embryology, Leiden University Medical Center, 2333 ZC, Leiden, the Netherlands.
Ans M M van PeltCenter for Reproductive Medicine, Reproductive Biology Laboratory, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands.
Geert HamerCenter for Reproductive Medicine, Reproductive Biology Laboratory, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands. Electronic address: g.hamer@amsterdamumc.nl.
Amsterdam University Medical Centers · NLLeiden University Medical Center · NLUniversity of Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In vitro spermatogenesis has been achieved by culturing mouse embryonic stem cells (ESCs) together with a cell suspension of male juvenile gonad. However, for human fertility treatment or preservation, patient-specific ESCs or juvenile gonad is not available. We therefore aim to achieve in vitro spermatogenesis using male germline stem cells (GSCs) without the use of juvenile gonad. GSCs, when cultured on immortalized Sertoli cells, were able to enter meiosis, reach the meiotic metaphase stages, and sporadically form spermatid-like cells. However, the in vitro-formed pachytene-like spermatocytes did not display full chromosome synapsis and did not form meiotic crossovers. Despite this, the meiotic checkpoints that usually eliminate such cells to prevent genomic instabilities from being transmitted to the offspring were not activated, allowing the cells to proceed to the meiotic metaphase stages. In vitro-generated spermatid-like cells should thus be thoroughly investigated before being considered for clinical use.

Indexed as

MeiosisMetaphasePachytene StageSpermatogenesisAnimalsCell Cycle CheckpointsCells, CulturedCoculture TechniquesGerm CellsIn Vitro TechniquesMaleMiceMice, Inbred DBAMicroscopy, FluorescenceSertoli CellsSpermatidsin vitro spermatogenesismeiosismeiotic checkpointsSertoli cell linesspermatogonial stem cells

Identifiers

PMID33176123
PMCPMC7664054
OpenAlexW3099610386

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.