Evidence map›Paper›PMID 23221369›Full record

ArticleDevelopment (Cambridge, England)2013

MicroRNAs 221 and 222 regulate the undifferentiated state in mammalian male germ cells.

Qi-En Yang, Karen E Racicot, Amy V Kaucher, Melissa J Oatley, Jon M Oatley

Abstract read
In one paragraph

Article in Development (Cambridge, England), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
15.8field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 169 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. International journal of fertility & sterility · 2025
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. The Biology and Regulation of Spermatogonial Stem Cells in the Niche.Advances in experimental medicine and biology · 2025
    Review
  11. Article
  12. Review
  13. Review
  14. Frontiers in cell and developmental biology · 2023
    Review
  15. Review
  16. Review
  17. Life (Basel, Switzerland) · 2022
    Article
  18. Article
  19. Article
  20. Article

19 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Qi-En YangSchool of Molecular Biosciences, Center for Reproductive Biology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA.
Karen E Racicot
Amy V Kaucher
Melissa J Oatley
Jon M Oatley
Washington State University · US

Funding

Control Spermatogonial Stem Cell Fate Decisions by bHLH Transcription RegulatorsR01HD061665 · NICHD · WASHINGTON STATE UNIVERSITY · PI OATLEY, JON M · 2009 to 2019
$3.1M
NICHD NIH HHS HD061665NICHD NIH HHS R01 HD061665
6 · The paper itself

Abstract

Continuity of cycling cell lineages relies on the activities of undifferentiated stem cell-containing subpopulations. Transition to a differentiating state must occur periodically in a fraction of the population to supply mature cells, coincident with maintenance of the undifferentiated state in others to sustain a foundational stem cell pool. At present, molecular mechanisms regulating these activities are poorly defined for most cell lineages. Spermatogenesis is a model process that is supported by an undifferentiated spermatogonial population and transition to a differentiating state involves attained expression of the KIT receptor. We found that impaired function of the X chromosome-clustered microRNAs 221 and 222 (miR-221/222) in mouse undifferentiated spermatogonia induces transition from a KIT(-) to a KIT(+) state and loss of stem cell capacity to regenerate spermatogenesis. Both Kit mRNA and KIT protein abundance are influenced by miR-221/222 function in spermatogonia. Growth factors that promote maintenance of undifferentiated spermatogonia upregulate miR-221/222 expression; whereas exposure to retinoic acid, an inducer of spermatogonial differentiation, downregulates miR-221/222 abundance. Furthermore, undifferentiated spermatogonia overexpressing miR-221/222 are resistant to retinoic acid-induced transition to a KIT(+) state and are incapable of differentiation in vivo. These findings indicate that miR-221/222 plays a crucial role in maintaining the undifferentiated state of mammalian spermatogonia through repression of KIT expression.

Indexed as

AnimalsApoptosisCell DifferentiationCell LineageCell ProliferationFlow CytometryGerm CellsHumansIn Situ HybridizationIntercellular Signaling Peptides and ProteinsMaleMiceMice, Inbred C57BLMicroRNAsProto-Oncogene Proteins c-kitSex ChromosomesIntercellular Signaling Peptides and ProteinsMicroRNAsMIRN221 microRNA, mouseMIRN222 microRNA, mouseProto-Oncogene Proteins c-kitTretinoin

Identifiers

PMID23221369
PMCPMC3597206
OpenAlexW2070053574

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.