Evidence map›Paper›PMID 20530000›Full record

ArticleCirculation2010

Targeted deletions of cyclooxygenase-2 and atherogenesis in mice.

Yiqun Hui, Emanuela Ricciotti, Irene Crichton, Zhou Yu, Dairong Wang, Jane Stubbe, Miao Wang, Ellen Puré, Garret A FitzGerald

Open access · bronzeAbstract read
In one paragraph

Article in Circulation, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.6field-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

33 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Prostanoids in Cardiac and Vascular Remodeling.Arteriosclerosis, thrombosis, and vascular biology · 2024
    Review
  6. Review
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  11. Article
  12. Article
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  14. Article
  15. The expansive role of oxylipins on platelet biology.Journal of molecular medicine (Berlin, Germany) · 2017
    Review
  16. Article
  17. Article
  18. Review
  19. Anti-inflammatory therapies for atherosclerosis.Nature reviews. Cardiology · 2015
    Review
  20. Clocks and cardiovascular function.Methods in enzymology · 2015
    Review
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 1 institution in 1 country.

Yiqun HuiSchool of Medicine, Institute for Translational Medicine and Therapeutics, University of Pennsylvania, 153 Johnson Pavilion, Philadelphia, PA 19104, USA.
Emanuela Ricciotti
Irene Crichton
Zhou Yu
Dairong Wang
Jane Stubbe
Miao Wang
Ellen Puré
Garret A FitzGerald
The Wistar Institute · US

Funding

The Nicotinic Acid Receptor HM74A in Vascular InjuryP50HL083799 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2006 to 2010
$15.8M
THE ROLE OF SEMA4D/CD100 AND ITS RECEPTORS IN PLATELET BIOLOGY AND THROMBOSISP50HL081012 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI BRASS, LAWRENCE · 2006 to 2010
$11.9M
NCRR NIH HHS RR023567NHLBI NIH HHS HL083799NHLBI NIH HHS HL81012NHLBI NIH HHS P50 HL081012NHLBI NIH HHS P50 HL083799
6 · The paper itself

Abstract

backgroundAlthough the dominant product of vascular Cyclooxygenase-2 (COX-2), prostacyclin (PGI(2)), restrains atherogenesis, inhibition and deletion of COX-2 have yielded conflicting results in mouse models of atherosclerosis. Floxed mice were used to parse distinct cellular contributions of COX-2 in macrophages and T cells (TCs) to atherogenesis. METHODS AND

resultsDeletion of macrophage-COX-2 (Mac-COX-2KOs) was attained with LysMCre mice and completely suppressed lipopolysaccharide-stimulated macrophage prostaglandin (PG) formation and lipopolysaccharide-evoked systemic PG biosynthesis by approximately 30%. Lipopolysaccharide-stimulated COX-2 expression was suppressed in polymorphonuclear leukocytes isolated from MacKOs, but PG formation was not even detected in polymorphonuclear leukocyte supernatants from control mice. Atherogenesis was attenuated when MacKOs were crossed into hyperlipidemic low-density lipoprotein receptor knockouts. Deletion of Mac-COX-2 appeared to remove a restraint on COX-2 expression in lesional nonleukocyte (CD45- and CD11b-negative) vascular cells that express vascular cell adhesion molecule and variably alpha-smooth muscle actin and vimentin, portending a shift in PG profile and consequent atheroprotection. Basal expression of COX-2 was minimal in TCs, but use of CD4Cre to generate TC knockouts depressed its modest upregulation by anti-CD3epsilon. However, biosynthesis of PGs, TC composition in lymphatic organs, and atherogenesis in low-density lipoprotein receptor knockouts were unaltered in TC knockouts.

conclusionsMacrophage-COX-2, primarily a source of thromboxane A(2) and prostaglandin (PG)E(2), promotes atherogenesis and exerts a restraint on enzyme expression by lesional cells suggestive of vascular smooth muscle cells, a prominent source of atheroprotective prostacyclin. TC COX-2 does not detectably influence TC development or function or atherogenesis in mice.

Indexed as

Gene DeletionAnimalsAtherosclerosisCells, CulturedCyclooxygenase 2Disease Models, AnimalFemaleMacrophagesMaleMiceMice, KnockoutProstaglandinsReceptors, LDLRNA, MessengerT-LymphocytesCyclooxygenase 2ProstaglandinsReceptors, LDLRNA, Messenger

Identifiers

PMID20530000
PMCPMC2909762
OpenAlexW1973222972

What OpenQuestion holds

Textmetadata
LicenceTDM
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.