Evidence map›Paper›PMID 26839362›Full record

ArticleDevelopment (Cambridge, England)2016

Rab8 directs furrow ingression and membrane addition during epithelial formation in Drosophila melanogaster.

Lauren M Mavor, Hui Miao, Zhongyuan Zuo, Ryan M Holly, Yi Xie, Dinah Loerke, J Todd Blankenship

Abstract read
In one paragraph

Article in Development (Cambridge, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
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  14. Review
  15. Article
  16. Rabs in Signaling and Embryonic Development.International journal of molecular sciences · 2020
    Review
  17. Review
  18. Article
  19. 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

7 authors at 1 institution in 1 country.

Lauren M MavorDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA.
Hui MiaoDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA.
Zhongyuan ZuoDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA.
Ryan M HollyDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA.
Yi XieDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA.
Dinah LoerkeDepartment of Physics, University of Denver, Denver, CO 80208, USA.
J Todd BlankenshipDepartment of Biological Sciences, University of Denver, Denver, CO 80208, USA todd.blankenship@du.edu.
University of Denver · US

Funding

Dynamics of Epithelial Polarity Proteins and the Control of Tissue ArchitectureR01GM090065 · NIGMS · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI BLANKENSHIP, JAMES TODD · 2011 to 2015
$1.4M
NIGMS NIH HHS R01 GM090065
6 · The paper itself

Abstract

One of the most fundamental changes in cell morphology is the ingression of a plasma membrane furrow. The Drosophila embryo undergoes several cycles of rapid furrow ingression during early development that culminate in the formation of an epithelial sheet. Previous studies have demonstrated the requirement for intracellular trafficking pathways in furrow ingression; however, the pathways that link compartmental behaviors with cortical furrow ingression events are unclear. Here, we show that Rab8 has striking dynamic behaviors in vivo. As furrows ingress, cytoplasmic Rab8 puncta are depleted and Rab8 accumulates at the plasma membrane in a location that coincides with known regions of directed membrane addition. We additionally use CRISPR/Cas9 technology to N-terminally tag Rab8, which is then used to address endogenous localization and function. Endogenous Rab8 displays partial coincidence with Rab11 and the Golgi, and this colocalization is enriched during the fast phase of cellularization. When Rab8 function is disrupted, furrow formation in the early embryo is completely abolished. We also demonstrate that Rab8 behaviors require the function of the exocyst complex subunit Sec5 as well as the recycling endosome protein Rab11. Active, GTP-locked Rab8 is primarily associated with dynamic membrane compartments and the plasma membrane, whereas GDP-locked Rab8 forms large cytoplasmic aggregates. These studies suggest a model in which active Rab8 populations direct furrow ingression by guiding the targeted delivery of cytoplasmic membrane stores to the cell surface through interactions with the exocyst tethering complex.

Indexed as

Gene Expression Regulation, DevelopmentalActinsAnimalsAnimals, Genetically ModifiedCell MembraneCRISPR-Cas SystemsCrosses, GeneticCytoplasmDrosophila melanogasterDrosophila ProteinsEmbryo, NonmammalianEpitheliumExocytosisFemaleGolgi ApparatusGTP PhosphohydrolasesActinsDrosophila ProteinsGTP PhosphohydrolasesGuanosine TriphosphateMembrane Proteinsrab11 GTP-Binding ProteinsRab11 protein, DrosophilaRab8 protein, Drosophilarab GTP-Binding ProteinsSec5 protein, DrosophilaCellularizationDrosophila melanogasterFurrow formationRab8

Identifiers

PMID26839362
PMCPMC4813336
OpenAlexW2254434316

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.