Evidence map›Paper›PMID 24574096›Full record

ArticleAndrology2014

Dynamic Hedgehog signalling pathway activity in germline stem cells.

Z Sahin, A Szczepny, E A McLaughlin, M L Meistrich, W Zhou, I Ustunel, K L Loveland

Open access · bronzeAbstract read
In one paragraph

Article in Andrology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. The Latest Research Progress of mFrontiers in cell and developmental biology · 2021
    Review
  11. Review
  12. Article
  13. Analysis of hedgehog signaling in periocular sebaceous carcinoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
    Observational
  14. Review
  15. Article
  16. Article
  17. Review
  18. 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

7 authors at 6 institutions in 4 countries.

Z SahinDepartment of Histology and Embryology, Faculty of Medicine, Near East University, Nicosia, Mersin-10, Turkey; Monash Institute of Medical Research, Monash University, Melbourne, VIC, Australia.
A Szczepny
E A McLaughlin
M L Meistrich
W Zhou
I Ustunel
K L Loveland
The University of Texas MD Anderson Cancer Center · USAkdeniz University · TRMonash Institute of Medical Research · AUMonash University · AUNear East University · CYUniversity of Newcastle Australia · AU

Funding

ACTIVATION OF SPERMATOGENIC RECOVERY AFTER TOXIC INSULTR01ES008075 · NIEHS · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI SHETTY, GUNAPALA · 1996 to 2011
$3.6M
NIEHS NIH HHS R01 ES008075NIEHS NIH HHS R01 ES08075
6 · The paper itself

Abstract

Although the contribution of Hedgehog (Hh) signalling to stem cell development and oncogenesis is well recognised, its importance for spermatogonial stem cells (SSCs) has not been established. Here we interrogate adult rat SSCs using an established model in which only undifferentiated spermatogonial cells remain in the testis at 15 weeks following irradiation, and spermatogonial differentiation is induced within 4 weeks by gonadotrophin-releasing hormone antagonist (GnRH-ant) administration. Synthesis of Hh pathway components in untreated adult rat testes was compared with that in irradiated testes prior to and after GnRH-ant exposure using in situ hybridization. In adult testes with complete spermatogenesis, the Desert Hedgehog ligand transcript, Dhh, was detected in Sertoli cells, some spermatogonia and in spermatocytes by in situ hybridization. Spermatogenic cells were identified as sites of Hh signalling through detection of transcripts encoding the Hh receptor, Ptc2 transcripts and proteins for the key downstream target of Hh signalling, Gli1 and the Hh transcriptional activator, Gli2. Remarkably, the undifferentiated spermatogonia present in irradiated adult rat testes contained Dhh in addition to Ptc2, Gli1 and Gli2, revealing the potential for an autocrine Hh signalling loop to sustain undifferentiated spermatogonial cells. These transcripts became undetectable by in situ hybridization following GnRH-ant induction of spermatogonial differentiation, however, detection of Gli1 protein in spermatogonia in all groups indicates that Hh signalling is sustained. This is the first evidence of active Hh signalling in mammalian male germline stem cells, as has been documented for some cancer stem cells.

Indexed as

Adult Stem CellsAnimalsCell DifferentiationDNA-Binding ProteinsGonadotropin-Releasing HormoneHedgehog ProteinsHormone AntagonistsKruppel-Like Transcription FactorsMalePatched ReceptorsPromyelocytic Leukemia Zinc Finger ProteinRatsRats, Sprague-DawleyReceptors, Cell SurfaceSertoli CellsSignal TransductioncetrorelixDhh protein, ratDNA-Binding ProteinsGli1 protein, ratGonadotropin-Releasing HormoneHedgehog ProteinsHormone AntagonistsKruppel-Like Transcription FactorsPatched ReceptorsPromyelocytic Leukemia Zinc Finger ProteinReceptors, Cell SurfaceZBTB16 protein, ratZinc Finger Protein GLI1Zinc Finger Protein Gli2adult stem cellsspermatogonial stem cellstesticular cancer

Identifiers

PMID24574096
PMCPMC4119796
OpenAlexW2021787411

What OpenQuestion holds

Textmetadata
LicenceTDM
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.