Evidence map›Paper›PMID 11982483›Full record

ArticleThe Biochemical journal2002

Human platelets respond differentially to lysophosphatidic acids having a highly unsaturated fatty acyl group and alkyl ether-linked lysophosphatidic acids.

Akira Tokumura, Junya Sinomiya, Seishi Kishimoto, Tamotsu Tanaka, Kentaro Kogure, Takayuki Sugiura, Kiyoshi Satouchi, Keizo Waku, Kenji Fukuzawa

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
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  4. Article
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  11. Lysophosphatidic acid in atherosclerotic diseases.British journal of pharmacology · 2012
    Review
  12. Biosynthesis of alkyl lysophosphatidic acid by diacylglycerol kinases.Biochemical and biophysical research communications · 2012
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Aiming drug discovery at lysophosphatidic acid targets.British journal of pharmacology · 2010
    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

9 authors at 3 institutions in 1 country.

Akira TokumuraFaculty of Pharmaceutical Sciences, The University of Tokushima, 1-78 Shomachi, Tokushima 770-8505, Japan. tokumura@ph.tokushima-u.ac.jp
Junya Sinomiya
Seishi Kishimoto
Tamotsu Tanaka
Kentaro Kogure
Takayuki Sugiura
Kiyoshi Satouchi
Keizo Waku
Kenji Fukuzawa
Tokushima University · JPTeikyo University · JPFukuyama University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lysophosphatidic acid (LPA) is a physiological agonist that is produced by lysophospholipase D, phospholipase A(1) and phospholipase A(2) in the blood of animals. It exerts diverse biological actions on a broad range of animal cells. Specific receptors for this important agonist have been characterized. In this investigation, for the first time we prepared LPAs having a highly unsaturated fatty acyl group, such as the eicosapentaenoyl or docosahexaenoyl residue, and their acetylated derivatives. Human platelets aggregated more potently in response to the highly unsaturated acyl-LPAs than to LPAs with a C(18) fatty acyl group, such as an oleoyl group, while alkyl ether-linked LPAs (alkyl-LPA) had much stronger aggregating activity. Two positional isomers of LPAs with an arachidonoyl, eicosapentaenoyl or docosahexaenoyl group had equipotent aggregatory activity as well as the positional isomers of their acetylated analogues, indicating that putative LPA receptors could not distinguish the difference between the positional isomers. We found that platelet preparations from two individuals showed no aggregatory response to alkyl-LPAs, although they contained mRNAs for known LPA receptors in the following order of expression level: endothelial differentiation gene (Edg)-4>Edg-7>Edg-2. We also obtained evidence that 2-(p-amylcinnamoyl)amino-4-chlorobenzoic acid (ONO-RS-082), a phospholipase A(2) inhibitor, potentiated alkyl-LPA-induced platelet aggregation, but inhibited highly unsaturated acyl-LPA-induced platelet aggregation. These results indicated that human platelets express acyl-LPA-selective and alkyl-LPA-selective receptors on their plasma membrane.

Indexed as

Receptors, G-Protein-CoupledAffinity LabelsAminobenzoatesAnimalsBlood PlateletsCattleChlorobenzoatesCinnamatesDose-Response Relationship, DrugFatty Acids, UnsaturatedGas Chromatography-Mass SpectrometryGlyceryl EthersHumansLysophospholipidsMolecular StructureNuclear Proteins2-(4-amylcinnamoyl)amino-4-chlorobenzoic acidAffinity LabelsAminobenzoatesChlorobenzoatesCinnamatesFatty Acids, UnsaturatedGlyceryl EthersLysophospholipidsNuclear Proteinsortho-AminobenzoatesPhosphodiesterase InhibitorsReceptors, Cell SurfaceReceptors, G-Protein-CoupledReceptors, Lysophosphatidic AcidSerum Albumin, BovineTranscription Factors

Identifiers

PMID11982483
PMCPMC1222725
OpenAlexW1990875180

What Socratic 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 Socratic graph.