Evidence map›Paper›PMID 12244213›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

C-reactive protein binds to both oxidized LDL and apoptotic cells through recognition of a common ligand: Phosphorylcholine of oxidized phospholipids.

Mi-Kyung Chang, Christoph J Binder, Michael Torzewski, Joseph L Witztum

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed
10.1field-weighted citation impact, top 1% 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

161 citing papers in PubMed, 510 citations in OpenAlex.

  1. Trial
  2. The High-Sensitivity C-Reactive Protein-Albumin-Lymphocyte Index Is a Prognostic Marker for All-Cause and Cardiovascular Mortality in Patients With ST-Elevation Myocardial Infarction.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2026
    Article
  3. Biomarkers of Cardiovascular Stress: A Historical Review.Journal of cardiovascular development and disease · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Observational
  9. Glucolipid Metabolic Disorders andInternational journal of endocrinology · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Structural basis for surface activation of the classical complement cascade by the short pentraxin C-reactive protein.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Oxidized phospholipids in cardiovascular disease.Nature reviews. Cardiology · 2024
    Review
  20. Review

101 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Mi-Kyung ChangDepartment of Medicine, University of California at San Diego, La Jolla, CA 92093-0682, USA. m7chang@ucsd.edu
Christoph J Binder
Michael Torzewski
Joseph L Witztum
University of California, San Diego · US

Funding

SCOR IN MOLECULAR MEDICINE AND ATHEROSCLEROSISP50HL056989 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI QUEHENBERGER, OSWALD · 1997 to 2006
$14.1M
ANTICARDIOLIPIN ANTIBODIES AND OXIDIZED PHOSPHOLIPIDSR01HL057505 · NHLBI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI WITZTUM, JOSEPH L. · 1997 to 2004
$2.0M
Role of B-1 Lymphocytes in AtherogenesisR01HL069464 · NHLBI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI WITZTUM, JOSEPH L. · 2001 to 2004
$1.5M
NHLBI NIH HHS HL56989NHLBI NIH HHS HL57505NHLBI NIH HHS HL69464NHLBI NIH HHS P50 HL056989NHLBI NIH HHS R01 HL057505NHLBI NIH HHS R01 HL069464
6 · The paper itself

Abstract

C-reactive protein (CRP) is an acute-phase protein that binds specifically to phosphorylcholine (PC) as a component of microbial capsular polysaccharide and participates in the innate immune response against microorganisms. CRP elevation also is a major risk factor for cardiovascular disease. We previously demonstrated that EO6, an antioxidized LDL autoantibody, was a T15 clono-specific anti-PC antibody and specifically binds to PC on oxidized phosphatidylcholine (PtC) but not on native PtC. Similarly, EO6 binds apoptotic cells but not viable cells. In addition, such oxidized phospholipids are recognized by macrophage scavenger receptors, implying that these innate immune responses participate in the clearance because of their proinflammatory properties. We now report that CRP binds to oxidized LDL (OxLDL) and oxidized PtC (OxPtC), but does not bind to native, nonoxidized LDL nor to nonoxidized PtC, and its binding is mediated through the recognition of a PC moiety. Reciprocally, CRP binds to PC, which can be competed for by OxLDL and OxPtC but not by native LDL, nonoxidized PtC, or by oxidized phospholipids without the PC headgroup. CRP also binds to apoptotic cells, and this binding is competed for by OxLDL, OxPtC, and PC. These data suggest that CRP binds OxLDL and apoptotic cells by recognition of a PC moiety that becomes accessible as a result of oxidation of PtC molecule. We propose that, analogous to EO6 and scavenger receptors, CRP is a part of the innate immune response to oxidized PC-bearing phospholipids within OxLDL and on the plasma membranes of apoptotic cells.

Indexed as

ApoptosisMembrane ProteinsReceptors, LipoproteinAntigensAutoantibodiesBinding, CompetitiveCell SurvivalC-Reactive ProteinDose-Response Relationship, DrugEpitopesHumansImmunoassayImmunohistochemistryJurkat CellsLigandsLipoproteins, LDLAntigensAutoantibodiesC-Reactive ProteinEpitopesLigandsLipoproteins, LDLMembrane Proteinsoxidized low density lipoproteinOxygenPhosphatidylcholinesPhospholipidsPhosphorylcholineReceptors, ImmunologicReceptors, LipoproteinReceptors, ScavengerScarb1 protein, mouseScavenger Receptors, Class B

Identifiers

PMID12244213
PMCPMC130583
OpenAlexW2163451548

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.