Evidence map›Paper›PMID 34549267›Full record

ArticleEndocrinology2021

Differentiation of Human Induced Pluripotent Stem Cells Into Testosterone-Producing Leydig-like Cells.

Takaki Ishida, Michiyo Koyanagi-Aoi, Daisuke Yamamiya, Atsushi Onishi, Katsuya Sato, Keiichiro Uehara, Masato Fujisawa, Takashi Aoi

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

16 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
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  4. Article
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  6. 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
  7. Review
  8. Article
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  11. NAM journal · 2025
    Review
  12. A new humanHuman reproduction open · 2025
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Takaki IshidaDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.ORCID 0000-0001-6933-1842
Michiyo Koyanagi-AoiDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.
Daisuke YamamiyaDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.
Atsushi OnishiDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.
Katsuya SatoDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.
Keiichiro UeharaDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.
Masato FujisawaDivision of Urology, Graduate School of Medicine, Kobe University, Kobe 650-0017, Japan.
Takashi AoiDivision of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 650-0017, Japan.ORCID 0000-0002-3963-5922
Kobe University · JPKobe University Hospital · JPKanazawa University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Late-onset hypogonadism (LOH) syndrome, due to a partial lack of testosterone, decreases the quality of life of older men. Testosterone is mainly secreted by Leydig cells in the testes. Leydig cell transplantation is expected to be a promising alternative to conventional testosterone replacement therapy for LOH syndrome. We herein report a simple and robust protocol for directed differentiation of human induced pluripotent stem cells (hiPSCs) into Leydig-like cells by doxycycline-inducible overexpression of NR5A1 and treatment with a combination of 8-bromoadenosine-3',5'-cyclic monophosphate (8-Br-cAMP) and forskolin. The differentiated cells expressed the steroidogenic enzyme genes STAR, CYP11A1, CYP17A1, and HSD3B2 and the specific markers of adult Leydig cells HSD17B3, INSL3, and LHCGR. Furthermore, we confirmed the secretion of functional testosterone from the cells into the culture supernatant by a testosterone-sensitive cell proliferation assay. These findings showed that the hiPSCs were able to be differentiated into Leydig-like cells, supporting the expectation that hiPSC-derived Leydig-like cells can be novel tools for treating LOH syndrome.

Indexed as

Cell DifferentiationCell Culture TechniquesCells, CulturedFemaleHumansInduced Pluripotent Stem CellsLeydig CellsMaleTestosteroneTestosteronedifferentiationiPS cellLeydig celltestosterone

Identifiers

PMID34549267
OpenAlexW3199327909

What OpenQuestion holds

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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.