Evidence map›Paper›PMID 35156745›Full record

ArticleEMBO reports2022

Targeting human CALR-mutated MPN progenitors with a neoepitope-directed monoclonal antibody.

Denis Tvorogov, Chloe A L Thompson-Peach, Johannes Foßelteder, Mara Dottore, Frank Stomski, Suraiya A Onnesha, Kelly Lim, Paul A B Moretti, Stuart M Pitson, David M Ross and 3 more

Open access · hybridAbstract read
In one paragraph

Article in EMBO reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Advances in Stem Cell Transplantation for Myelofibrosis.Current hematologic malignancy reports · 2024
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

13 authors at 3 institutions in 2 countries.

Denis TvorogovCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.ORCID 0000-0002-2009-1347
Chloe A L Thompson-PeachCancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide, Adelaide, SA, Australia.ORCID 0000-0001-7172-3183
Johannes FoßeltederDepartment of Internal Medicine, Division of Haematology, Medical University of Graz, Graz, Austria.ORCID 0000-0002-0241-6822
Mara DottoreCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.ORCID 0000-0002-0254-6598
Frank StomskiCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.
Suraiya A OnneshaCancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide, Adelaide, SA, Australia.
Kelly LimCancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide, Adelaide, SA, Australia.ORCID 0000-0003-4606-7588
Paul A B MorettiCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.ORCID 0000-0002-3523-1496
Stuart M PitsonCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.ORCID 0000-0002-9527-2740
David M RossCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.
Andreas ReinischDepartment of Internal Medicine, Division of Haematology, Medical University of Graz, Graz, Austria.ORCID 0000-0001-9333-7689
Daniel ThomasCancer Program, Precision Medicine Theme, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide, Adelaide, SA, Australia.ORCID 0000-0002-0837-1231
Angel F LopezCentre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA, Australia.ORCID 0000-0001-7430-0135
South Australia Pathology · AUSouth Australian Health and Medical Research Institute · AUMedical University of Graz · AT

Funding

Austrian Science Fund FWF P 32783
6 · The paper itself

Abstract

Calreticulin (CALR) is recurrently mutated in myelofibrosis via a frameshift that removes an endoplasmic reticulum retention signal, creating a neoepitope potentially targetable by immunotherapeutic approaches. We developed a specific rat monoclonal IgG2α antibody, 4D7, directed against the common sequence encoded by both insertion and deletion mutations. 4D7 selectively bound to cells co-expressing mutant CALR and thrombopoietin receptor (TpoR) and blocked JAK-STAT signalling, TPO-independent proliferation and megakaryocyte differentiation of mutant CALR myelofibrosis progenitors by disrupting the binding of CALR dimers to TpoR. Importantly, 4D7 inhibited proliferation of patient samples with both insertion and deletion CALR mutations but not JAK2 V617F and prolonged survival in xenografted bone marrow models of mutant CALR-dependent myeloproliferation. Together, our data demonstrate a novel therapeutic approach to target a problematic disease driven by a recurrent somatic mutation that would normally be considered undruggable.

Indexed as

CalreticulinMyeloproliferative DisordersAnimalsAntibodies, MonoclonalHumansJanus Kinase 2MutationRatsAntibodies, MonoclonalCalreticulinJanus Kinase 2calreticulinmonoclonal antibodymyelofibrosismyeloproliferative neoplasmstem cell progenitor

Identifiers

PMID35156745
PMCPMC8982588
OpenAlexW4213373081

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.