Evidence map›Paper›PMID 22490676›Full record

ArticleBlood2012

Antibodies causing thrombocytopenia in patients treated with RGD-mimetic platelet inhibitors recognize ligand-specific conformers of αIIb/β3 integrin.

Daniel W Bougie, Mark Rasmussen, Jieqing Zhu, Richard H Aster

Abstract readEvaluation Study
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Pharmacokinetics, pharmacodynamics, and tolerability of subcutaneous administration of a novel glycoprotein IIb/IIIa inhibitor, RUC-4, in patients with ST-segment elevation myocardial infarction.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2021
    Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Tirofiban-induced thrombocytopenia.Annals of medicine · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. A Novel αToxins · 2019
    Article
  13. Article
  14. Review
  15. Article
  16. Drug-associated thrombocytopenia.Hematology. American Society of Hematology. Education Program · 2018
    Review
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Daniel W BougieBlood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI 53201, USA. dan.bougie@bcw.edu
Mark Rasmussen
Jieqing Zhu
Richard H Aster

Funding

Transgenic/Knockout CoreP01HL044612 · NHLBI · VERSITI WISCONSIN, INC. · PI NEWMAN, PETER J · 1990 to 2015
$33.4M
HEMORRHAGIC DISEASESR01HL013629 · NHLBI · VERSITI WISCONSIN, INC. · PI ASTER, RICHARD HERBERT · 1985 to 2019
$8.7M
Hemorrhagic DiseasesR56HL013629 · NHLBI · VERSITI WISCONSIN, INC. · PI ASTER, RICHARD HERBERT · 2008 to 2008
$440k
HEMORRHAGIC DISEASESR37HL013629 · NHLBI · BLOODCENTER OF WISCONSIN, INC. · PI ASTER, RICHARD HERBERT · 1989 to 1998
–
NHLBI NIH HHS HL-13629NHLBI NIH HHS HL-44612NHLBI NIH HHS P01 HL044612NHLBI NIH HHS R01 HL013629NHLBI NIH HHS R37 HL013629NHLBI NIH HHS R56 HL013629
6 · The paper itself

Abstract

Arginine-glycine-aspartic acid (RGD)-mimetic platelet inhibitors act by occupying the RGD recognition site of α(IIb)/β(3) integrin (GPIIb/IIIa), thereby preventing the activated integrin from reacting with fibrinogen. Thrombocytopenia is a well-known side effect of treatment with this class of drugs and is caused by Abs, often naturally occurring, that recognize α(IIb)/β(3) in a complex with the drug being administered. RGD peptide and RGD-mimetic drugs are known to induce epitopes (ligand-induced binding sites [LIBS]) in α(IIb)/β(3) that are recognized by certain mAbs. It has been speculated, but not shown experimentally, that Abs from patients who develop thrombocytopenia when treated with an RGD-mimetic inhibitor similarly recognize LIBS determinants. We addressed this question by comparing the reactions of patient Abs and LIBS-specific mAbs against α(IIb)/β(3) in a complex with RGD and RGD-mimetic drugs, and by examining the ability of selected non-LIBS mAbs to block binding of patient Abs to the liganded integrin. Findings made provide evidence that the patient Abs recognize subtle, drug-induced structural changes in the integrin head region that are clustered about the RGD recognition site. The target epitopes differ from classic LIBS determinants, however, both in their location and by virtue of being largely drug-specific.

Indexed as

AnimalsAntibodiesCHO CellsCricetinaeCricetulusEptifibatideHumansLigandsMiceMice, Inbred BALB CModels, BiologicalOligopeptidesPeptidesPlatelet Aggregation InhibitorsPlatelet Glycoprotein GPIIb-IIIa ComplexProtein BindingAntibodiesarginyl-glycyl-aspartic acidEptifibatideLigandsOligopeptidesPeptidesPlatelet Aggregation InhibitorsPlatelet Glycoprotein GPIIb-IIIa ComplexTirofibanTyrosine

Identifiers

PMID22490676
PMCPMC3383197

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.