Evidence map›Paper›PMID 22378638›Full record

ArticleDevelopment (Cambridge, England)2012

The receptor tyrosine phosphatase Lar regulates adhesion between Drosophila male germline stem cells and the niche.

Shrividhya Srinivasan, Anthony P Mahowald, Margaret T Fuller

Open access · greenAbstract read
In one paragraph

Article in Development (Cambridge, England), 2012. 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
1.7field-weighted citation impact, top 16% 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, 28 citations in OpenAlex.

  1. Article
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  4. Lar maintains the homeostasis of the hematopoietic organ inDevelopment (Cambridge, England) · 2019
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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

3 authors at 2 institutions in 1 country.

Shrividhya SrinivasanDepartment of Developmental Biology, Stanford University, School of Medicine, Stanford, CA 94305, USA.
Anthony P Mahowald
Margaret T Fuller
Stanford University · USUniversity of Chicago · US

Funding

Regulation of Stem Cell Self-Renewal and DifferentiationR01GM080501 · NIGMS · STANFORD UNIVERSITY · PI FULLER, MARGARET T · 2007 to 2019
$3.8M
Regulation of Stem Cell Behavior in Drosophila Male Germ LineF32GM083351 · NIGMS · STANFORD UNIVERSITY · PI SRINIVASAN, SHRIVIDHYA · 2007 to 2009
$142k
NIGMS NIH HHS F32 GM083351NIGMS NIH HHS R01 GM080501
6 · The paper itself

Abstract

The stem cell niche provides a supportive microenvironment to maintain adult stem cells in their undifferentiated state. Adhesion between adult stem cells and niche cells or the local basement membrane ensures retention of stem cells in the niche environment. Drosophila male germline stem cells (GSCs) attach to somatic hub cells, a component of their niche, through E-cadherin-mediated adherens junctions, and orient their centrosomes toward these localized junctional complexes to carry out asymmetric divisions. Here we show that the transmembrane receptor tyrosine phosphatase Leukocyte-antigen-related-like (Lar), which is best known for its function in axonal migration and synapse morphogenesis in the nervous system, helps maintain GSCs at the hub by promoting E-cadherin-based adhesion between hub cells and GSCs. Lar is expressed in GSCs and early spermatogonial cells and localizes to the hub-GSC interface. Loss of Lar function resulted in a reduced number of GSCs at the hub. Lar function was required cell-autonomously in germ cells for proper localization of Adenomatous polyposis coli 2 and E-cadherin at the hub-GSC interface and for the proper orientation of centrosomes in GSCs. Ultrastructural analysis revealed that in Lar mutants the adherens junctions between hub cells and GSCs lack the characteristic dense staining seen in wild-type controls. Thus, the Lar receptor tyrosine phosphatase appears to polarize and retain GSCs through maintenance of localized E-cadherin-based adherens junctions.

Indexed as

Adherens JunctionsAnimalsCadherinsCell AdhesionCell DifferentiationCell LineageCrosses, GeneticDrosophila melanogasterDrosophila ProteinsFemaleGerm CellsGreen Fluorescent ProteinsMaleMicroscopy, Phase-ContrastReceptor-Like Protein Tyrosine PhosphatasesStem CellsCadherinsDrosophila ProteinsGreen Fluorescent ProteinsLar protein, DrosophilaReceptor-Like Protein Tyrosine Phosphatases

Identifiers

PMID22378638
PMCPMC3308176
OpenAlexW2036444568

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.