Evidence map›Paper›PMID 22216012›Full record

ArticlePLoS genetics2011

Histone H3K9 trimethylase Eggless controls germline stem cell maintenance and differentiation.

Xiaoxi Wang, Lei Pan, Su Wang, Jian Zhou, William McDowell, Jungeun Park, Jeff Haug, Karen Staehling, Hong Tang, Ting Xie

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

52 citing papers in PubMed, 100 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Gap junction-transported cAMP from the niche controls stem cell progeny differentiation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. Canonical and non-canonical functions of STAT in germline stem cell maintenance.Developmental dynamics : an official publication of the American Association of Anatomists · 2023
    Article
  7. Cells · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Drosophila SERTAD domain protein Taranis is required in somatic cells for maintenance of male germline stem cells.Developmental dynamics : an official publication of the American Association of Anatomists · 2021
    Article
  16. Article
  17. Article
  18. Molecular control of the female germline stem cell niche size in Drosophila.Cellular and molecular life sciences : CMLS · 2019
    Review
  19. Genetics · 2019
    Article
  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

10 authors at 3 institutions in 2 countries.

Xiaoxi WangStowers Institute for Medical Research, Kansas City, Missouri, United States of America.
Lei Pan
Su Wang
Jian Zhou
William McDowell
Jungeun Park
Jeff Haug
Karen Staehling
Hong Tang
Ting Xie
Stowers Institute for Medical Research · USInstitute of Biophysics · CNUniversity of Kansas · US

Funding

Molecular Mechanisms Regulating Drosophila Ovarian Germline Stem CellsR01GM064428 · NIGMS · STOWERS INSTITUTE FOR MEDICAL RESEARCH · PI XIE, TING · 2002 to 2010
$2.2M
NIGMS NIH HHS R01 GM064428NIGMS NIH HHS R01GM64428
6 · The paper itself

Abstract

Epigenetic regulation plays critical roles in the regulation of cell proliferation, fate determination, and survival. It has been shown to control self-renewal and lineage differentiation of embryonic stem cells. However, epigenetic regulation of adult stem cell function remains poorly defined. Drosophila ovarian germline stem cells (GSCs) are a productive adult stem cell system for revealing regulatory mechanisms controlling self-renewal and differentiation. In this study, we show that Eggless (Egg), a H3K9 methyltransferase in Drosophila, is required in GSCs for controlling self-renewal and in escort cells for regulating germ cell differentiation. egg mutant ovaries primarily exhibit germ cell differentiation defects in young females and gradually lose GSCs with time, indicating that Egg regulates both germ cell maintenance and differentiation. Marked mutant egg GSCs lack expression of trimethylated H3K9 (H3k9me3) and are rapidly lost from the niche, but their mutant progeny can still differentiate into 16-cell cysts, indicating that Egg is required intrinsically to control GSC self-renewal but not differentiation. Interestingly, BMP-mediated transcriptional repression of differentiation factor bam in marked egg mutant GSCs remains normal, indicating that Egg is dispensable for BMP signaling in GSCs. Normally, Bam and Bgcn interact with each other to promote GSC differentiation. Interestingly, marked double mutant egg bgcn GSCs are still lost, but their progeny are able to differentiate into 16-cell cysts though bgcn mutant GSCs normally do not differentiate, indicating that Egg intrinsically controls GSC self-renewal through repressing a Bam/Bgcn-independent pathway. Surprisingly, RNAi-mediated egg knockdown in escort cells leads to their gradual loss and a germ cell differentiation defect. The germ cell differentiation defect is at least in part attributed to an increase in BMP signaling in the germ cell differentiation niche. Therefore, this study has revealed the essential roles of histone H3K9 trimethylation in controlling stem cell maintenance and differentiation through distinct mechanisms.

Indexed as

AnimalsCell DifferentiationDNA HelicasesDrosophila melanogasterDrosophila ProteinsEpigenesis, GeneticFemaleGene Expression Regulation, DevelopmentalGene Knockdown TechniquesGerm CellsHistone-Lysine N-MethyltransferaseHistonesOvaryRNA InterferenceSignal TransductionStem Cellsbam protein, Drosophilabgcn protein, DrosophilaDNA HelicasesDrosophila Proteinsegg protein, DrosophilaHistone-Lysine N-MethyltransferaseHistones

Identifiers

PMID22216012
PMCPMC3245301
OpenAlexW1983630324

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.