Evidence map›Paper›PMID 30523052›Full record

ArticleHaematologica2019

Generation of anti-idiotypic antibodies to detect anti-spacer antibody idiotopes in acute thrombotic thrombocytopenic purpura patients.

An-Sofie Schelpe, Elien Roose, Bérangère S Joly, Inge Pareyn, Ilaria Mancini, Marina Biganzoli, Hans Deckmyn, Jan Voorberg, Rob Fijnheer, Flora Peyvandi and 4 more

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
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

14 authors at 8 institutions in 4 countries.

An-Sofie SchelpeLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium.
Elien RooseLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium.
Bérangère S JolyService d'Hématologie Biologique, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, France.
Inge PareynLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium.
Ilaria ManciniFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Università degli Studi di Milano, Italy.
Marina BiganzoliFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Università degli Studi di Milano, Italy.
Hans DeckmynLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium.
Jan VoorbergDepartment of Molecular and Cellular Hemostasis, Sanquin-AMC Landsteiner Laboratory, Amsterdam, the Netherlands.
Rob FijnheerDepartment of Internal Medicine, Meander Medical Center, Amersfoort, the Netherlands.
Flora PeyvandiFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Università degli Studi di Milano, Italy.
Simon F De MeyerLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium.
Paul CoppoSorbonne Universités, Service d'Hématologie et Centre de Référence des Microangiopathies Thrombotiques (CNR-MAT), Hôpital Saint Antoine, Assistance Publique-Hôpitaux de Paris, France.
Agnès VeyradierService d'Hématologie Biologique, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, France.
Karen VanhoorelbekeLaboratory for Thrombosis Research, IRF Life Sciences, KU Leuven Campus Kulak Kortrijk, Belgium Karen.Vanhoorelbeke@kuleuven.be.
KU Leuven · BEUniversity of Milan · ITDélégation Paris 7 · FRFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITHôpital Lariboisière · FRMeander Medisch Centrum · NLSanquin · NLSorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In autoantibody-mediated autoimmune diseases, autoantibody profiling allows patients to be stratified and links autoantibodies with disease severity and outcome. However, in immune-mediated thrombotic thrombocytopenic purpura (iTTP) patients, stratification according to antibody profiles and their clinical relevance has not been fully explored. We aimed to develop a new type of autoantibody profiling assay for iTTP based on the use of anti-idiotypic antibodies. Anti-idiotypic antibodies against 3 anti-spacer autoantibodies were generated in mice and were used to capture the respective anti-spacer idiotopes from 151 acute iTTP plasma samples. We next deciphered these anti-spacer idiotope profiles in iTTP patients and investigated whether these limited idiotope profiles could be linked with disease severity. We developed 3 anti-idiotypic antibodies that recognized particular idiotopes in the anti-spacer autoantibodies II-1, TTP73 or I-9, that are involved in ADAMTS13 binding; 35%, 24% and 42% of patients were positive for antibodies with the II-1, TTP73 and I-9 idiotopes, respectively. Stratifying patients according to the corresponding 8 anti-spacer idiotope profiles provided a new insight into the anti-spacer II-1, TTP73 and I-9 idiotope profiles in these patients. Finally, these limited idiotope profiles showed no association with disease severity. We successfully developed 3 anti-idiotypic antibodies that allowed us to determine the profiles of the anti-spacer II-1, TTP73 and I-9 idiotopes in iTTP patients. Increasing the number of patients and/or future development of additional anti-idiotypic antibodies against other anti-ADAMTS13 autoantibodies might allow idiotope profiles of clinical, prognostic value to be identified.

Indexed as

ADAMTS13 ProteinAnimalsAntibodies, Anti-IdiotypicAutoantibodiesAutoantigensDisease SusceptibilityEnzyme-Linked Immunosorbent AssayEpitopesHumansImmunoglobulin GProtein BindingPurpura, Thrombotic ThrombocytopenicSeverity of Illness IndexADAMTS13 ProteinADAMTS13 protein, humanAntibodies, Anti-IdiotypicAutoantibodiesAutoantigensEpitopesImmunoglobulin G

Identifiers

PMID30523052
PMCPMC6545854
OpenAlexW2903991344

What Socratic holds

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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 Socratic graph.