Evidence map›Paper›PMID 23576545›Full record

ArticleMolecular biology of the cell2013

Phosphatidic acid is required for the constitutive ruffling and macropinocytosis of phagocytes.

Michal Bohdanowicz, Daniel Schlam, Martin Hermansson, David Rizzuti, Gregory D Fairn, Takehiko Ueyama, Pentti Somerharju, Guangwei Du, Sergio Grinstein

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

71 citing papers in PubMed, 117 citations in OpenAlex.

  1. Article
  2. bioRxiv : the preprint server for biology · 2026
    Article
  3. Subcellular Cartography of the Phosphoinositide Multiverse.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Membrane Ruffles: Composition, Function, Formation and Visualization.International journal of molecular sciences · 2024
    Review
  13. Cellular Regulation of Macropinocytosis.International journal of molecular sciences · 2024
    Review
  14. Article
  15. Article
  16. Phosphatidic acid signaling and function in nuclei.Progress in lipid research · 2024
    Review
  17. Review
  18. Microglia: Friend and foe in tauopathy.Progress in neurobiology · 2022
    Review
  19. An update on genetically encoded lipid biosensors.Molecular biology of the cell · 2022
    Article
  20. Article

11 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

9 authors at 5 institutions in 4 countries.

Michal BohdanowiczDivision of Cell Biology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
Daniel Schlam
Martin Hermansson
David Rizzuti
Gregory D Fairn
Takehiko Ueyama
Pentti Somerharju
Guangwei Du
Sergio Grinstein
Hospital for Sick Children · CASt. Michael's Hospital · CAUniversity of Helsinki · FIKobe University · JPThe University of Texas Health Science Center at Houston · US

Funding

Canadian Institutes of Health Research MOP7075Canadian Institutes of Health Research MOP93634
6 · The paper itself

Abstract

Macrophages and dendritic cells continuously survey their environment in search of foreign particles and soluble antigens. Such surveillance involves the ongoing extension of actin-rich protrusions and the consequent formation of phagosomes and macropinosomes. The signals inducing this constitutive cytoskeletal remodeling have not been defined. We report that, unlike nonphagocytic cells, macrophages and immature dendritic cells have elevated levels of phosphatidic acid (PA) in their plasma membrane. The plasmalemmal PA is synthesized by phosphorylation of diacylglycerol, which is in turn generated by a G protein-stimulated phospholipase C. Inhibition of diacylglycerol kinase activity results in the detachment of T-cell lymphoma invasion and metastasis-inducing protein 1 (TIAM1)-a Rac guanine exchange factor-from the plasma membrane, thereby depressing Rac activity and abolishing the constitutive ruffling and macropinocytosis that characterize macrophages and immature dendritic cells. Accumulation of PA and binding of TIAM1 to the membrane require the activity of phosphatidylinositol-4,5-bisphosphate 3-kinase. Thus a distinctive, constitutive pathway of PA biosynthesis promotes the actin remodeling required for immune surveillance.

Indexed as

AnimalsCell Line, TumorCell MembraneCytoskeletonDendritic CellsDiglyceridesGene Expression RegulationGuanine Nucleotide Exchange FactorsHumansImmunity, InnateImmunologic SurveillanceMacrophagesMicePhosphatidic AcidsPhosphatidylinositol 3-KinasesPinocytosis1,2-diacylglycerolDiglyceridesGuanine Nucleotide Exchange FactorsPhosphatidic AcidsPhosphatidylinositol 3-KinasesTIAM1 protein, humanT-Lymphoma Invasion and Metastasis-inducing Protein 1Type C Phospholipases

Identifiers

PMID23576545
PMCPMC3667723
OpenAlexW2153418918

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.