Evidence map›Paper›PMID 17419997›Full record

ArticleDevelopmental cell2007

PLA2 and PI3K/PTEN pathways act in parallel to mediate chemotaxis.

Lingfeng Chen, Miho Iijima, Ming Tang, Mark A Landree, Yi Elaine Huang, Yuan Xiong, Pablo A Iglesias, Peter N Devreotes

Open access · bronzeAbstract read
In one paragraph

Article in Developmental cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed
12.1field-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

111 citing papers in PubMed, 197 citations in OpenAlex.

  1. Global profiling of polyketide synthases in facultative multicellular eukaryotes.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  2. Two endogenousProceedings of the National Academy of Sciences of the United States of America · 2025
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  5. Sex-Based Differences in Human Neutrophil Chemorepulsion.Journal of immunology (Baltimore, Md. : 1950) · 2022
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  8. The principles of directed cell migration.Nature reviews. Molecular cell biology · 2021
    Review
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  10. Article
  11. Article
  12. Stochastic geometry sensing and polarization in a lipid kinase-phosphatase competitive reaction.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  13. Article
  14. Article
  15. Extracellular signaling in Dictyostelium.The International journal of developmental biology · 2019
    Review
  16. Article
  17. Review
  18. Excitable Signal Transduction Networks in Directed Cell Migration.Annual review of cell and developmental biology · 2017
    Review
  19. Article
  20. Review

51 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Lingfeng ChenDepartment of Cell Biology, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA.
Miho Iijima
Ming Tang
Mark A Landree
Yi Elaine Huang
Yuan Xiong
Pablo A Iglesias
Peter N Devreotes
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

Temporal and Spatial Signaling in ChemotaxisR01GM034933 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI DEVREOTES, PETER N · 1987 to 2015
$8.8M
Signaling Networks in Chemotaxis and CytokinesisR37GM028007 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI DEVREOTES, PETER N · 2005 to 2014
$6.3M
NIGMS NIH HHS R01 GM034933NIGMS NIH HHS R37 GM028007
6 · The paper itself

Abstract

Directed cell migration involves signaling events that lead to local accumulation of PI(3,4,5)P(3), but additional pathways act in parallel. A genetic screen in Dictyostelium discoideum to identify redundant pathways revealed a gene with homology to patatin-like phospholipase A(2). Loss of this gene did not alter PI(3,4,5)P(3) regulation, but chemotaxis became sensitive to reductions in PI3K activity. Likewise, cells deficient in PI3K activity were more sensitive to inhibition of PLA(2) activity. Deletion of the PLA(2) homolog and two PI3Ks caused a strong defect in chemotaxis and a reduction in receptor-mediated actin polymerization. In wild-type cells, chemoattractants stimulated a rapid burst in an arachidonic acid derivative. This response was absent in cells lacking the PLA(2) homolog, and exogenous arachidonic acid reduced their dependence on PI3K signaling. We propose that PLA(2) and PI3K signaling act in concert to mediate chemotaxis, and metabolites of PLA(2) may be important mediators of the response.

Indexed as

ChemotaxisSignal TransductionActinsAnimalsArachidonic AcidCell AggregationCells, CulturedCyclic AMPDictyosteliumMutationPhosphatidylinositol 3-KinasesPhosphatidylinositolsPhosphoinositide-3 Kinase InhibitorsPhospholipases APhospholipases A2PTEN PhosphohydrolaseActinsArachidonic AcidCyclic AMPPhosphatidylinositol 3-KinasesPhosphatidylinositolsphosphoinositide-3,4,5-triphosphatePhosphoinositide-3 Kinase InhibitorsPhospholipases APhospholipases A2PTEN Phosphohydrolase

Identifiers

PMID17419997
PMCPMC1986835
OpenAlexW2089607882

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.