Evidence map›Paper›PMID 25739453›Full record

ArticleMolecular biology of the cell2015

Homer3 regulates the establishment of neutrophil polarity.

Julie Wu, Anne Pipathsouk, A Keizer-Gunnink, F Fusetti, W Alkema, Shanshan Liu, Steven Altschuler, Lani Wu, Arjan Kortholt, Orion D Weiner

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

  1. Homer condensates orchestrate YAP-Wnt signaling crosstalk downstream of the Crumbs polarity complex.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Neutrophil diversity and function in health and disease.Signal transduction and targeted therapy · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Discovery and validation of surfaceJournal for immunotherapy of cancer · 2020
    Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Function and Regulation of Heterotrimeric G Proteins during Chemotaxis.International journal of molecular sciences · 2016
    Review
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 4 institutions in 2 countries.

Julie WuCardiovascular Research Institute and Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158.
Anne PipathsoukCardiovascular Research Institute and Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158.
A Keizer-GunninkDepartment of Cell Biochemistry, Groningen Biological Sciences and Biotechnology Institute, University of Groningen, 9700 AB Groningen, Netherlands.
F FusettiDepartment of Biochemistry and Netherlands Proteomics Centre, Groningen Biological Sciences and Biotechnology Institute, University of Groningen, 9700 AB Groningen, Netherlands.
W AlkemaNIZO Food Research, 6718 ZB Ede, Netherlands Centre for Molecular and Biomolecular Informatics, Radboud University Medical Center, Nijmegen, 6525 GA Nijmegen, Netherlands.
Shanshan LiuGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Steven AltschulerGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Lani WuGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Arjan KortholtDepartment of Cell Biochemistry, Groningen Biological Sciences and Biotechnology Institute, University of Groningen, 9700 AB Groningen, Netherlands.
Orion D WeinerCardiovascular Research Institute and Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158 orion.weiner@ucsf.edu.
Center for Systems Biology · USUniversity of California, San Francisco · USUniversity of Groningen · NLRadboud University Nijmegen · NL

Funding

Signal Integration in Neutrophil ChemotaxisR01GM084040 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WEINER, ORION D · 2008 to 2015
$2.6M
NIGMS NIH HHS R01 GM084040NIGMS NIH HHS R01-GM084040
6 · The paper itself

Abstract

Most chemoattractants rely on activation of the heterotrimeric G-protein Gαi to regulate directional cell migration, but few links from Gαi to chemotactic effectors are known. Through affinity chromatography using primary neutrophil lysate, we identify Homer3 as a novel Gαi2-binding protein. RNA interference-mediated knockdown of Homer3 in neutrophil-like HL-60 cells impairs chemotaxis and the establishment of polarity of phosphatidylinositol 3,4,5-triphosphate (PIP3) and the actin cytoskeleton, as well as the persistence of the WAVE2 complex. Most previously characterized proteins that are required for cell polarity are needed for actin assembly or activation of core chemotactic effectors such as the Rac GTPase. In contrast, Homer3-knockdown cells show normal magnitude and kinetics of chemoattractant-induced activation of phosphoinositide 3-kinase and Rac effectors. Chemoattractant-stimulated Homer3-knockdown cells also exhibit a normal initial magnitude of actin polymerization but fail to polarize actin assembly and intracellular PIP3 and are defective in the initiation of cell polarity and motility. Our data suggest that Homer3 acts as a scaffold that spatially organizes actin assembly to support neutrophil polarity and motility downstream of GPCR activation.

Indexed as

Actin CytoskeletonCarrier ProteinsCell PolarityChemotaxisGene ExpressionGene Knockdown TechniquesHL-60 CellsHomer Scaffolding ProteinsHumansNeutrophilsReceptors, G-Protein-CoupledRNA, Small InterferingCarrier ProteinsHOMER3 protein, humanHomer Scaffolding ProteinsReceptors, G-Protein-CoupledRNA, Small Interfering

Identifiers

PMID25739453
PMCPMC4436775
OpenAlexW2138436101

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.