Evidence map›Paper›PMID 19369648›Full record

ArticleBiology of reproduction2009

Spermatogonial stem cells derived from infertile Wv/Wv mice self-renew in vitro and generate progeny following transplantation.

Hiroshi Kubota, Mary R Avarbock, Jonathan A Schmidt, Ralph L Brinster

Open access · greenAbstract read
In one paragraph

Article in Biology of reproduction, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.7field-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

26 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
  2. Article
  3. Primary Cultures of Spermatogonia and Testis Cells.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Spermatogonial Stem Cell Culture in Oncofertility.The Urologic clinics of North America · 2020
    Review
  9. Article
  10. Article
  11. Article
  12. Spermatogonial stem cells.Biology of reproduction · 2018
    Review
  13. Article
  14. Regulation of blood-testis barrier assembly in vivo by germ cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

4 authors at 1 institution in 1 country.

Hiroshi KubotaDepartment of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Mary R Avarbock
Jonathan A Schmidt
Ralph L Brinster
University of Pennsylvania · US

Funding

Regulation of mouse spermatogonial stem cell self-renewalR01HD052728 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI BRINSTER, RALPH LAWRENCE · 2007 to 2011
$1.8M
Male germline stem cell culture and genetic modificationR01HD044445 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI BRINSTER, RALPH LAWRENCE · 2003 to 2007
$1.8M
NICHD NIH HHS HD 044445NICHD NIH HHS HD 052728NICHD NIH HHS R01 HD044445NICHD NIH HHS R01 HD052728
6 · The paper itself

Abstract

Loss-of-function mutation of the Kit gene causes a severe defect in spermatogenesis that results in infertility due to the inability of its cognate ligand, KIT ligand (KITL), to stimulate spermatogonial proliferation and differentiation. Although self-renewal of mouse spermatogonial stem cells (SSCs) depends on glial cell line-derived neurotrophic factor (GDNF), there is no unequivocal evidence that SSCs with a KIT deficiency can self-renew in vivo or in vitro. In the testis of W(v)/W(v) mice, in which the KIT tyrosine kinase activity is impaired, spermatogonia with SSC phenotype were identified. When W(v)/W(v) spermatogonia were cultured in an SSC culture system supplemented with GDNF in a 10% O(2) atmosphere, they formed clumps and proliferated continuously. An atmosphere of 10% O(2) was better than 21% O(2) to support SSC self-renewal. When W(v)/W(v) clump-forming germ cells were transplanted into testes of infertile wild-type busulfan-treated mice, they colonized the seminiferous tubules but did not differentiate. However, when transplanted into the testes of infertile W/W(v) pups, they restored spermatogenesis and produced spermatozoa, and progeny were generated using microinsemination. These results clearly show that SSCs exist in W(v)/W(v) testes and that they proliferate in vitro similar to wild-type SSCs, indicating that a functional KIT protein is not required for SSC self-renewal. Furthermore, the results indicate that a defect of KIT/KITL signaling of W(v)/W(v) SSCs does not prevent spermatogonial differentiation and spermatogenesis in some recipient strains.

Indexed as

SpermatogenesisAnalysis of VarianceAnimalsbeta-GalactosidaseCell ProliferationCells, CulturedColony-Forming Units AssayFas Ligand ProteinFemaleFlow CytometryInfertilityMaleMiceMice, Inbred C57BLMice, Mutant StrainsOxygenbeta-GalactosidaseFas Ligand ProteinOxygenProto-Oncogene Proteins c-kit

Identifiers

PMID19369648
PMCPMC2849820
OpenAlexW2109712383

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.