Evidence map›Paper›PMID 32463838›Full record

ArticlePLoS biology2020

Dilp-2-mediated PI3-kinase activation coordinates reactivation of quiescent neuroblasts with growth of their glial stem cell niche.

Xin Yuan, Conor W Sipe, Miyuki Suzawa, Michelle L Bland, Sarah E Siegrist

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
9.1field-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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Starve-Feed Cycles Direct Quiescence to Proliferation Transitions inbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Frontiers in cell and developmental biology · 2026
    Review
  5. Regulating glial morphogenesis: insights fromFrontiers in cell and developmental biology · 2026
    Review
  6. Article
  7. The Hox Gene,Molecular biology of the cell · 2025
    Article
  8. The Hox Gene,bioRxiv : the preprint server for biology · 2025
    Article
  9. Glial Regulation of Circuit Wiring, Firing, and Expiring in theCold Spring Harbor perspectives in biology · 2024
    Review
  10. Article
  11. Article
  12. Glia as Functional Barriers and Signaling Intermediaries.Cold Spring Harbor perspectives in biology · 2024
    Review
  13. Article
  14. Insulin signaling in development.Development (Cambridge, England) · 2023
    Article
  15. Drosophila glia take shape to sculpt the nervous system.Current opinion in neurobiology · 2023
    Review
  16. Article
  17. Homemade: building the structure of the neurogenic niche.Frontiers in cell and developmental biology · 2023
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Xin YuanDepartment of Biology, University of Virginia, Charlottesville, Virginia, United States of America.ORCID 0000-0002-9937-2108
Conor W SipeDepartment of Biology, University of Virginia, Charlottesville, Virginia, United States of America.ORCID 0000-0002-4455-6612
Miyuki SuzawaDepartment of Pharmacology, University of Virginia, Charlottesville, Virginia, United States of America.
Michelle L BlandDepartment of Pharmacology, University of Virginia, Charlottesville, Virginia, United States of America.ORCID 0000-0003-0113-1152
Sarah E SiegristDepartment of Biology, University of Virginia, Charlottesville, Virginia, United States of America.ORCID 0000-0003-0685-5387
University of Virginia · USShepherd University · US

Funding

Cell growth and proliferation control in neural stem cellsR01GM120421 · NIGMS · UNIVERSITY OF VIRGINIA · PI SIEGRIST, SARAH ELIZABETH · 2016 to 2020
$1.6M
Identification of novel genes linking inflammation and insulin signalingR01DK099601 · NIDDK · UNIVERSITY OF VIRGINIA · PI BLAND, MICHELLE L · 2014 to 2017
$1.3M
Developmental regulation of neural stem cell eliminationR00HD067293 · NICHD · UNIVERSITY OF VIRGINIA · PI SIEGRIST, SARAH ELIZABETH · 2013 to 2015
$706k
Nutrient-regulated stem cell proliferationF32NS096919 · NINDS · UNIVERSITY OF VIRGINIA · PI SIPE, CONOR · 2017 to 2019
$190k
NICHD NIH HHS R00 HD067293NIDDK NIH HHS R01 DK099601NIGMS NIH HHS R01 GM120421NINDS NIH HHS F32 NS096919
6 · The paper itself

Abstract

Dietary nutrients provide macromolecules necessary for organism growth and development. In response to animal feeding, evolutionarily conserved growth signaling pathways are activated, leading to increased rates of cell proliferation and tissue growth. It remains unclear how different cell types within developing tissues coordinate growth in response to dietary nutrients and whether coordinated growth of different cell types is necessary for proper tissue function. Using the early Drosophila larval brain, we asked whether nutrient-dependent growth of neural stem cells (neuroblasts), glia, and trachea is coordinated and whether coordinated growth among these major brain cell types is required for neural development. It is known that in response to dietary nutrients and PI3-kinase activation, brain and ventral nerve cord neuroblasts reactivate from quiescence and ventral nerve cord glia expand their membranes. Here, we assay growth in a cell-type specific manner at short time intervals in the brain and determine that growth is coordinated among different cell types and that coordinated growth is mediated in part through activation of PI3-kinase signaling. Of the 7 Drosophila insulin-like peptides (Dilps), we find that Dilp-2 is required for PI3-kinase activation and growth coordination between neuroblasts and glia in the brain. Dilp-2 induces brain cortex glia to initiate membrane growth and make first contact with quiescent neuroblasts. Once reactivated, neuroblasts promote cortex glia growth to ultimately form a selective membrane barrier. Our results highlight the importance of bidirectional growth signaling between neural stem cells and surrounding cell types in the brain in response to nutrition and demonstrate how coordinated growth among different cell types drives tissue morphogenesis and function.

Indexed as

AnimalsBrainDrosophilaDrosophila ProteinsEatingEnzyme ActivationLarvaMorphogenesisNeural Stem CellsNeurogliaNeuropeptidesPhosphatidylinositol 3-KinasesSignal TransductionStem Cell NicheDrosophila ProteinsILP2 protein, DrosophilaNeuropeptidesPhosphatidylinositol 3-Kinases

Identifiers

PMID32463838
PMCPMC7282672
OpenAlexW3032134602

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.