Evidence map›Paper›PMID 34831457›Full record

ReviewCells2021

Platelets in ITP: Victims in Charge of Their Own Fate?

Vivianne S Nelson, Anne-Tess C Jolink, Sufia N Amini, Jaap Jan Zwaginga, Tanja Netelenbos, John W Semple, Leendert Porcelijn, Masja de Haas, Martin R Schipperus, Rick Kapur

Open access · goldAbstract readReview
In one paragraph

Review in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Review
  3. The glycan fingerprint in immune thrombocytopenia.Research and practice in thrombosis and haemostasis · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Natural killer cell granule protein 7 contributes to CD8Research and practice in thrombosis and haemostasis · 2025
    Article
  8. Article
  9. Acquired platelet disorders.Frontiers in medicine · 2025
    Review
  10. Review
  11. Review
  12. Pathogenesis of refractory ITP: Overview.British journal of haematology · 2023
    Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. 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

10 authors at 5 institutions in 2 countries.

Vivianne S NelsonDepartment of Hematology, Haga Teaching Hospital, 2545 AA The Hague, The Netherlands.ORCID 0000-0002-7329-2687
Anne-Tess C JolinkSanquin Research, Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands.
Sufia N AminiDepartment of Hematology, Haga Teaching Hospital, 2545 AA The Hague, The Netherlands.
Jaap Jan ZwagingaDepartment of Hematology, Leiden University Medical Center (LUMC), 2333 ZA Leiden, The Netherlands.ORCID 0000-0003-1228-7769
Tanja NetelenbosDepartment of Hematology, Haga Teaching Hospital, 2545 AA The Hague, The Netherlands.ORCID 0000-0003-3562-9733
John W SempleDivision of Hematology and Transfusion Medicine, Lund University, 221 84 Lund, Sweden.ORCID 0000-0002-1510-0077
Leendert PorcelijnSanquin Diagnostic Services, Department of Immunohematology Diagnostics, 1066 CX Amsterdam, The Netherlands.
Masja de HaasSanquin Research, Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands.
Martin R SchipperusDepartment of Hematology, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands.
Rick KapurSanquin Research, Department of Experimental Immunohematology, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, The Netherlands.ORCID 0000-0002-1608-876X
Sanquin · NLLeiden University Medical Center · NLHaga Hospital · NLLund University · SEUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune thrombocytopenia (ITP) is an autoimmune bleeding disorder. The pathophysiological mechanisms leading to low platelet levels in ITP have not been resolved, but at least involve autoantibody-dependent and/or cytotoxic T cell mediated platelet clearance and impaired megakaryopoiesis. In addition, T cell imbalances involving T regulatory cells (Tregs) also appear to play an important role. Intriguingly, over the past years it has become evident that platelets not only mediate hemostasis, but are able to modulate inflammatory and immunological processes upon activation. Platelets, therefore, might play an immuno-modulatory role in the pathogenesis and pathophysiology of ITP. In this respect, we propose several possible pathways in which platelets themselves may participate in the immune response in ITP. First, we will elaborate on how platelets might directly promote inflammation or stimulate immune responses in ITP. Second, we will discuss two ways in which platelet microparticles (PMPs) might contribute to the disrupted immune balance and impaired thrombopoiesis by megakaryocytes in ITP. Importantly, from these insights, new starting points for further research and for the design of potential future therapies for ITP can be envisioned.

Indexed as

Blood PlateletsBone MarrowCell-Derived MicroparticlesHumansImmunityModels, BiologicalPurpura, Thrombocytopenic, IdiopathicITPplatelet immune functionsplatelet microparticles

Identifiers

PMID34831457
PMCPMC8621961
OpenAlexW3215391682

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.