Evidence map›Paper›PMID 30139761›Full record

ArticleJournal of lipid research2018

Modulation of inflammatory platelet-activating factor (PAF) receptor by the acyl analogue of PAF.

Vyala Hanumanthareddy Chaithra, Shancy Petsel Jacob, Chikkamenahalli Lakshminarayana Lakshmikanth, Mosale Seetharam Sumanth, Kandahalli Venkataranganayaka Abhilasha, Chu-Huang Chen, Anita Thyagarajan, Ravi P Sahu, Jeffery Bryant Travers, Thomas M McIntyre and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

16 citing papers in PubMed, 40 citations in OpenAlex.

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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

12 authors at 3 institutions in 2 countries.

Vyala Hanumanthareddy ChaithraDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Shancy Petsel JacobDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Chikkamenahalli Lakshminarayana LakshmikanthDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Mosale Seetharam SumanthDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Kandahalli Venkataranganayaka AbhilashaDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Chu-Huang ChenVascular and Medicinal Research, Texas Heart Institute, Houston, TX 77030.
Anita ThyagarajanDepartment of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435.
Ravi P SahuDepartment of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435.
Jeffery Bryant TraversDepartment of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435.
Thomas M McIntyreDepartment of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH.
Kempaiah KemparajuDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India.
Gopal Kedihithlu MaratheDepartment of Studies in Biochemistry University of Mysore, Manasagangothri, Mysuru 570006, India marathe1962@gmail.com.ORCID 0000-0002-0025-6677
University of Mysore · INWright State University · USCleveland Clinic Lerner College of Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Platelet-activating factor (PAF) is a potent inflammatory mediator that exerts its actions via the single PAF receptor (PAF-R). Cells that biosynthesize alkyl-PAF also make abundant amounts of the less potent PAF analogue acyl-PAF, which competes for PAF-R. Both PAF species are degraded by the plasma form of PAF acetylhydrolase (PAF-AH). We examined whether cogenerated acyl-PAF protects alkyl-PAF from systemic degradation by acting as a sacrificial substrate to enhance inflammatory stimulation or as an inhibitor to dampen PAF-R signaling. In ex vivo experiments both PAF species are prothrombotic in isolation, but acyl-PAF reduced the alkyl-PAF-induced stimulation of human platelets that express canonical PAF-R. In Swiss albino mice, alkyl-PAF causes sudden death, but this effect can also be suppressed by simultaneously administering boluses of acyl-PAF. When PAF-AH levels were incrementally elevated, the protective effect of acyl-PAF on alkyl-PAF-induced death was serially decreased. We conclude that, although acyl-PAF in isolation is mildly proinflammatory, in a pathophysiological setting abundant acyl-PAF suppresses the action of alkyl-PAF. These studies provide evidence for a previously unrecognized role for acyl-PAF as an inflammatory set-point modulator that regulates both PAF-R signaling and hydrolysis.

Indexed as

1-Alkyl-2-acetylglycerophosphocholine EsterasePlatelet Activating FactorPlatelet Membrane GlycoproteinsReceptors, G-Protein-CoupledAnimalsAzepinesChromatography, LiquidFemaleLysophosphatidylcholinesMaleMass SpectrometryMiceMice, Inbred C57BLMice, KnockoutPhospholipidsPlatelet Aggregation1-Alkyl-2-acetylglycerophosphocholine EsteraseAzepinesLysophosphatidylcholinesPhospholipidsPlatelet Activating Factorplatelet activating factor receptorPlatelet Membrane GlycoproteinsReceptors, G-Protein-CoupledTriazolesWEB 2086PAF acetylhydrolasePAF analoguePAF-like lipidsplatelet aggregation

Identifiers

PMID30139761
PMCPMC6210909
OpenAlexW2888171716

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.