Evidence map›Paper›PMID 29300391›Full record

ArticleNature protocols2018

Use of a three-layer gradient system of cells for rat testicular organoid generation.

João Pedro Alves-Lopes, Olle Söder, Jan-Bernd Stukenborg

Abstract read
PubMed Publisher
In one paragraph

Article in Nature protocols, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  3. Differential retinoic acid responses across testicular developmentbioRxiv : the preprint server for biology · 2025
    Article
  4. In vitro models of the male reproductive system: applications for developmental and reproductive toxicology.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Review
  5. Article
  6. Article
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  18. Review
  19. Frontiers in cell and developmental biology · 2023
    Review
  20. Review
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

3 authors at 1 institution in 1 country.

João Pedro Alves-LopesDepartment of Women's and Children's Health, NORDFERTIL Research Lab Stockholm, Pediatric Endocrinology Unit; Q2:08; Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.ORCID 0000-0003-3042-6988
Olle SöderDepartment of Women's and Children's Health, NORDFERTIL Research Lab Stockholm, Pediatric Endocrinology Unit; Q2:08; Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
Jan-Bernd StukenborgDepartment of Women's and Children's Health, NORDFERTIL Research Lab Stockholm, Pediatric Endocrinology Unit; Q2:08; Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.ORCID 0000-0002-2839-1870
Karolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have recently developed a 3D culture system that allows the reorganization of rat primary testicular cells into organoids with a functional blood-testis barrier, as well as the establishment and maintenance of germ cells. The innovative aspect of our model, the three-layer gradient system (3-LGS), comprises cells combined with Matrigel placed between two layers of Matrigel without cells, which creates a gradient of cells and allows the reorganization of testicular cells into organized structures after 5-7 d in culture. This reorganization is not observed when testicular cells are suspended in only one layer of Matrigel, the methodology used in the majority of the protocols for generating organoids. The model can be applied to follow and quantify cell migration during testicular organoid formation, and to explore the role of growth factors and the toxic effects of drugs and environmental contaminants on germ cell maintenance and blood-testis barrier integrity. The 3-LGS is a robust and reproducible method that requires a small volume of Matrigel and a low number of cells (16 μl and 132,000 cells, respectively), enabling and facilitating high-throughput analysis of germ-to-somatic cell associations in vitro.

Indexed as

AnimalsCell Culture TechniquesCell DifferentiationCells, CulturedCollagenDrug CombinationsLamininMaleOrganoidsProteoglycansRatsSpermatogenesisSpermatogoniaTestisCollagenDrug CombinationsLamininmatrigelProteoglycans

Identifiers

PMID29300391
OpenAlexW2781807505

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.