Evidence map›Paper›PMID 22777346›Full record

ArticleHistochemistry and cell biology2012

Fibroblast growth factor receptor 3 is highly expressed in rarely dividing human type A spermatogonia.

Kathrein von Kopylow, Hannah Staege, Wolfgang Schulze, Hans Will, Christiane Kirchhoff

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Article in Histochemistry and cell biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 69 citations in OpenAlex.

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  16. Visualizing the origins of selfish de novo mutations in individual seminiferous tubules of human testes.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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

5 authors at 3 institutions in 1 country.

Kathrein von KopylowDepartment of Andrology, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
Hannah Staege
Wolfgang Schulze
Hans Will
Christiane Kirchhoff
Leibniz Institute of Virology (LIV) · DEUniversität Hamburg · DEUniversity Medical Center Hamburg-Eppendorf · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human spermatogonia (Spg) and their fetal precursors express fibroblast growth factor receptor 3 (FGFR3). To further elucidate the role of FGFR3 in the control of Spg self-renewal, proliferation, and/or differentiation, and to narrow down the FGFR3-positive cell type(s) in the normal adult human testis, tissue sections and whole mount preparations of seminiferous tubules were analyzed combining immunofluorescence and confocal fluorescence microscopy. FGFR3 protein was chiefly observed in cellular membranes and cytoplasmic vesicles of a subpopulation of type A Spg, which comprised the chromatin rarefaction zone-containing type A(dark). Cytoplasmic expression of FGFR3 and nuclear expression of proliferation-associated antigen KI-67 were mutually exclusive. Similarly, FGFR3-positive Spg were negative for Doublesex and Mab-3 related transcription factor 1 (DMRT1). By contrast, undifferentiated embryonic cell transcription factor 1 (UTF1) and survival time-associated PHD finger in ovarian cancer 1 protein (SPOC1) were co-expressed in the nuclei of FGFR3-positive Spg. Whole mounted seminiferous tubules illustrated the clonogenic arrangement of the FGFR3/UTF1 double-positive Spg, which mainly occurred as pairs or quadruplets and, different from the KIT-positive Spg, showed no overlap with KI-67 labeled clusters. Taken together, in the adult human testis, FGFR3 expression is a feature of small clones of rarely dividing type A Spg which resemble "undifferentiated" Spg, including the spermatogonial stem cells.

Indexed as

Cell DivisionCell MembraneCytoplasmic VesiclesDNA-Binding ProteinsFluorescent Antibody TechniqueHumansKi-67 AntigenMaleMicroscopy, ConfocalNuclear ProteinsProto-Oncogene Proteins c-kitReceptor, Fibroblast Growth Factor, Type 3Seminiferous TubulesSpermatogenesisSpermatogoniaTestisDMRT1 proteinDNA-Binding ProteinsFGFR3 protein, humanKi-67 AntigenNuclear ProteinsPHF13 protein, humanProto-Oncogene Proteins c-kitReceptor, Fibroblast Growth Factor, Type 3Trans-ActivatorsTranscription FactorsUTF1 protein, human

Identifiers

PMID22777346
OpenAlexW2037720356

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.