Evidence map›Paper›PMID 31607938›Full record

ArticleFrontiers in physiology2019

Propagation of Spermatogonial Stem Cell-Like Cells From Infant Boys.

Lihua Dong, Stine Gry Kristensen, Simone Hildorf, Murat Gul, Erik Clasen-Linde, Jens Fedder, Eva R Hoffmann, Dina Cortes, Jorgen Thorup, Claus Yding Andersen

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.4field-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

11 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  3. Review
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  5. Article
  6. Clinical aspects of histological and hormonal parameters in boys with cryptorchidism: Thesis for PhD degree.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2022
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Xeno-Free Propagation of Spermatogonial Stem Cells from Infant Boys.International journal of molecular sciences · 2019
    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

10 authors at 4 institutions in 2 countries.

Lihua DongLaboratory of Reproductive Biology, Copenhagen University Hospital, Copenhagen, Denmark.
Stine Gry KristensenLaboratory of Reproductive Biology, Copenhagen University Hospital, Copenhagen, Denmark.
Simone HildorfDepartment of Pediatric Surgery, Copenhagen University Hospital, Copenhagen, Denmark.
Murat GulLaboratory of Reproductive Biology, Copenhagen University Hospital, Copenhagen, Denmark.
Erik Clasen-LindeDepartment of Pathology, Copenhagen University Hospital, Copenhagen, Denmark.
Jens FedderCentre of Andrology and Fertility Clinic, Department D, Odense University Hospital, Odense C, Denmark.
Eva R HoffmannCenter for Chromosome Stability, Department of Molecular and Cellular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Dina CortesDepartment of Pediatrics, Copenhagen University Hospital Hvidovre, Copenhagen, Denmark.
Jorgen ThorupDepartment of Pediatric Surgery, Copenhagen University Hospital, Copenhagen, Denmark.
Claus Yding AndersenLaboratory of Reproductive Biology, Copenhagen University Hospital, Copenhagen, Denmark.
Copenhagen University Hospital · DKUniversity of Copenhagen · DKAksaray University · TROdense University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGonadotoxic treatment of malignant diseases as well as some non-malignant conditions such as cryptorchidism in young boys may result in infertility and failure to father children later in life. As a fertility preserving strategy, several centers collect testicular biopsies to cryopreserve spermatogonial stem cells (SSCs) world-wide. One of the most promising therapeutic strategies is to transplant SSCs back into the seminiferous tubules to initiate endogenous spermatogenesis. However, to obtain sufficient numbers of SSC to warrant transplantation, MATERIALS AND

methodsA minute amount of testicular biopsies (between 5 mg and 10 mg) were processed by mechanical and enzymatic digestion. SSCs were enriched by differential plating method in StemPro-34 medium supplemented with several growth factors. SSC-like cell clusters (SSCLCs) were passaged five times. SSCLCs were identified by immunohistochemical and immunofluorescence staining, using protein expression patterns in testis biopsies as reference. Quantitative polymerase chain reaction analysis of SSC markers LIN-28 homolog A (LIN28A), G antigen 1 (GAGE1), promyelocytic leukemia zinc finger protein (PLZF), integrin alpha 6 (ITGA6), ubiquitin carboxy-terminal hydrolase L1 (UCHL1) and integrin beta 1 (ITGB1) were also used to validate the SSC-like cell identity.

resultsProliferation of SSCLCs was achieved. The presence of SSCs in SSCLCs was confirmed by positive immunostaining of LIN28, UCHL1 and quantitative polymerase chain reaction for LIN28A, UCHL1, PLZF, ITGA6, and ITGB1, respectively.

conclusionThis study has demonstrated that SSCs from infant boys possess the capacity for

Indexed as

cryptorchidismfertility cryopreservationin vitro expansionmale infertilityspermatogonial stem cell

Identifiers

PMID31607938
PMCPMC6761273
OpenAlexW2970424075

What OpenQuestion holds

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LicenceCC BY
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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.