Evidence map›Paper›PMID 21737788›Full record

ArticleCirculation research2011

Network for activation of human endothelial cells by oxidized phospholipids: a critical role of heme oxygenase 1.

Casey E Romanoski, Nam Che, Fen Yin, Nguyen Mai, Delila Pouldar, Mete Civelek, Calvin Pan, Sangderk Lee, Ladan Vakili, Wen-Pin Yang and 5 more

Abstract readComparative Study
In one paragraph

Article in Circulation research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 2% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 116 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. TheBiomolecules · 2025
    Review
  6. Article
  7. Review
  8. Mitigation of Cardiovascular Disease and Toxicity through NRF2 Signalling.International journal of molecular sciences · 2023
    Review
  9. Article
  10. Article
  11. Article
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13 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

15 authors at 1 institution in 3 countries.

Casey E RomanoskiDepartment of Human Genetics, University of California, Los Angeles, CA, USA. casey.romanoski@ucla.edu
Nam Che
Fen Yin
Nguyen Mai
Delila Pouldar
Mete Civelek
Calvin Pan
Sangderk Lee
Ladan Vakili
Wen-Pin Yang
Paul Kayne
Imran N Mungrue
Jesus A Araujo
Judith A Berliner
Aldons J Lusis
Bristol-Myers Squibb (Germany) · DE

Funding

ULTRASTRUCTURE OF THE INTIMA IN EARLY LESION FORMATIONP01HL030568 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FOGELMAN, ALAN M · 1985 to 2019
$55.2M
Systems genomics of metabolic syndrome traitsP01HL028481 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI PAJUKANTA, PAIVI · 1985 to 2019
$50.2M
Vascular Biology Training GrantT32HL069766 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LUSIS, ALDONS JAKE · 2002 to 2022
$7.4M
ENDOTHELIAL ACTIVATION BY AN ISOPROSTANE PHOSPHOLIPIDR01HL064731 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BERLINER, JUDITH ANNE · 2000 to 2011
$3.2M
Effects of particulate air pollution on HDL function and atherosclerosisR01ES016959 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ARAUJO, JESUS ANTONIO · 2009 to 2013
$2.4M
Determining roles of the pro-apoptotic UPR gene CHAC1 in atherosclerosis.K99HL094709 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MUNGRUE, IMRAN · 2009 to 2010
$179k
Effects of particulate air pollution on HDL function and athersclerosisR56ES016959 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ARAUJO, JESUS ANTONIO · 2014 to 2014
$154k
NHLBI NIH HHS HL-064731NHLBI NIH HHS HL069766NHLBI NIH HHS K99 HL094709NHLBI NIH HHS P01 HL028481NHLBI NIH HHS P01 HL030568NHLBI NIH HHS P01-HL030568NHLBI NIH HHS R01 HL064731NHLBI NIH HHS T32 HL069766NIEHS NIH HHS ES016959NIEHS NIH HHS R01 ES016959NIEHS NIH HHS R56 ES016959
6 · The paper itself

Abstract

rationaleOxidized palmitoyl arachidonyl phosphatidylcholine (Ox-PAPC) accumulates in atherosclerotic lesions, is proatherogenic, and influences the expression of more than 1000 genes in endothelial cells.

objectiveTo elucidate the major pathways involved in Ox-PAPC action, we conducted a systems analysis of endothelial cell gene expression after exposure to Ox-PAPC. METHODS AND

resultsWe used the variable responses of primary endothelial cells from 149 individuals exposed to Ox-PAPC to construct a network that consisted of 11 groups of genes, or modules. Modules were enriched for a broad range of Gene Ontology pathways, some of which have not been identified previously as major Ox-PAPC targets. Further validating our method of network construction, modules were consistent with relationships established by cell biology studies of Ox-PAPC effects on endothelial cells. This network provides novel hypotheses about molecular interactions, as well as candidate molecular regulators of inflammation and atherosclerosis. We validated several hypotheses based on network connections and genomic association. Our network analysis predicted that the hub gene CHAC1 (cation transport regulator homolog 1) was regulated by the ATF4 (activating transcription factor 4) arm of the unfolded protein response pathway, and here we showed that ATF4 directly activates an element in the CHAC1 promoter. We showed that variation in basal levels of heme oxygenase 1 (HMOX1) contribute to the response to Ox-PAPC, consistent with its position as a hub in our network. We also identified G-protein-coupled receptor 39 (GPR39) as a regulator of HMOX1 levels and showed that it modulates the promoter activity of HMOX1. We further showed that OKL38/OSGN1 (oxidative stress-induced growth inhibitor), the hub gene in the blue module, is a key regulator of both inflammatory and antiinflammatory molecules.

conclusionsOur systems genetics approach has provided a broad view of the pathways involved in the response of endothelial cells to Ox-PAPC and also identified novel regulatory mechanisms.

Indexed as

AdultAtherosclerosisCells, CulturedEndothelium, VascularGene Expression ProfilingGene Regulatory NetworksHeme Oxygenase-1HumansPhosphatidylcholinesHeme Oxygenase-1oxidized-L-alpha-1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphorylcholinePhosphatidylcholines

Identifiers

PMID21737788
PMCPMC3163234
OpenAlexW2106357843

What OpenQuestion holds

Textmetadata
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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.