Evidence map›Paper›PMID 31591190›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Directing differentiation of human induced pluripotent stem cells toward androgen-producing Leydig cells rather than adrenal cells.

Lu Li, Yuchang Li, Chantal Sottas, Martine Culty, Jinjiang Fan, Yiman Hu, Garett Cheung, Héctor E Chemes, Vassilios Papadopoulos

Abstract readEvaluation Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. 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
  6. Review
  7. Mechanisms of Leydig Cell Aging and Obesity-Related Hypogonadism in Men: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
  8. Article
  9. Article
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  11. NAM journal · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Adrenal cortex renewal in health and disease.Nature reviews. Endocrinology · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Lu LiDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Yuchang LiDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Chantal SottasDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Martine CultyDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Jinjiang FanThe Research Institute of the McGill University Health Centre, Montreal, QC H4A 3J1, Canada.
Yiman HuDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Garett CheungDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089.
Héctor E ChemesCentro de Investigaciones Endocrinológicas (CEDIE-Consejo Nacional de Investigaciones Científicas y Técnicas), Hospital de Niños R. Gutiérrez, Buenos Aires C1425EFD, Argentina.
Vassilios PapadopoulosDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089; vpapadop@usc.edu.ORCID 0000-0002-1183-8568

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reduced serum testosterone (T), or hypogonadism, affects millions of men and is associated with many pathologies, including infertility, cardiovascular diseases, metabolic syndrome, and decreased libido and sexual function. Administering T-replacement therapy (TRT) reverses many of the symptoms associated with low T levels. However, TRT is linked to side effects such as infertility and increased risk of prostate cancer and cardiovascular diseases. Thus, there is a need to obtain T-producing cells that could be used to treat hypogonadism via transplantation and reestablishment of T-producing cell lineages in the body. T is synthesized by Leydig cells (LCs), proposed to derive from mesenchymal cells of mesonephric origin. Although mesenchymal cells have been successfully induced into LCs, the limited source and possible trauma to donors hinders their application to clinical therapies. Alternatively, human induced pluripotent stem cells (hiPSCs), which are expandable in culture and have the potential to differentiate into all somatic cell types, have become the emerging source of autologous cell therapies. We have successfully induced the differentiation of hiPSCs into either human Leydig-like (hLLCs) or adrenal-like cells (hALCs) using chemically defined culture conditions. Factors critical for the development of LCs were added to both culture systems. hLLCs expressed all steroidogenic genes and proteins important for T biosynthesis, synthesized T rather than cortisol, secreted steroid hormones in response to dibutyryl-cAMP and 22(

Indexed as

Cell Culture TechniquesCell DifferentiationInduced Pluripotent Stem CellsGene ExpressionHumansLeydig CellsMaleTestosteroneTranscriptomeTestosteronedifferentiationhuman induced pluripotent stem cellshuman Leydig cellssteroidogenesistestosterone

Identifiers

PMID31591190
PMCPMC6859353

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.