Evidence map›Paper›PMID 12611587›Full record

ArticleThe Biochemical journal2003

Arachidonate release and prostaglandin production by group IVC phospholipase A2 (cytosolic phospholipase A2gamma).

Makoto Murakami, Seiko Masuda, Ichiro Kudo

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 36 citations in OpenAlex.

  1. Sea lice (Frontiers in genetics · 2025
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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 1 institution in 1 country.

Makoto MurakamiDepartment of Health Chemistry, School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan. mako@pharm.showa-u.ac.jp
Seiko Masuda
Ichiro Kudo
Showa University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While the role of the group IVA Ca(2+)-dependent cytosolic phospholipase A(2)alpha (cPLA(2)alpha) in arachidonic acid (AA) metabolism has been well documented, that of its paralogue, Ca(2+)-independent group IVC PLA(2) (cPLA(2)gamma), has remained uncertain. Here we show, using a transfection strategy, that cPLA(2)gamma has the ability to increase the spontaneous and stimulus-induced release of cellular fatty acids. The AA released by cPLA(2)gamma was metabolized further to prostaglandin E(2) via cyclo-oxygenase-1 (COX-1) in the immediate response, and via COX-2 in the delayed response. Mutation of the putative catalytic-centre residue Ser(82) abrogated the AA-releasing function of cPLA(2)gamma both in vitro and in vivo. Confocal microscopy revealed that cPLA(2)gamma was distributed in the perinuclear endoplasmic reticulum membranes. Mutating the C-terminal prenylation site of cPLA(2)gamma abrogated its intracellular membrane localization and cellular AA-releasing function, without reducing its enzyme activity in vitro. Our results indicate that cPLA(2)gamma is the second cPLA(2) enzyme that contributes to cellular AA metabolism and phospholipid remodelling under appropriate conditions.

Indexed as

Amino Acid SubstitutionAnimalsArachidonic AcidArachidonic AcidsBinding SitesBlotting, NorthernCells, CulturedCyclooxygenase 1Cyclooxygenase 2CytosolDNA, ComplementaryEndoplasmic ReticulumHumansIsoenzymesMembrane ProteinsMiceArachidonic AcidArachidonic AcidsCyclooxygenase 1Cyclooxygenase 2DNA, ComplementaryIsoenzymesMembrane Proteinsmethyl arachidonylfluorophosphonateN-(2-cyclohexyloxy-4-nitrophenyl)methanesulfonamideNitrobenzenesOrganophosphonatesPhospholipases APhospholipases A2Prostaglandin-Endoperoxide SynthasesProstaglandinsPTGS1 protein, humanPtgs1 protein, mousePTGS2 protein, humanSulfonamides

Identifiers

PMID12611587
PMCPMC1223431
OpenAlexW2042746098

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.