Evidence map›Paper›PMID 26294732›Full record

Trial reportHaematologica2015

Gene-expression and in vitro function of mesenchymal stromal cells are affected in juvenile myelomonocytic leukemia.

Friso G J Calkoen, Carly Vervat, Else Eising, Lisanne S Vijfhuizen, Peter-Bram A C 't Hoen, Marry M van den Heuvel-Eibrink, R Maarten Egeler, Maarten J D van Tol, Lynne M Ball

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Haematologica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 42% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. 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

9 authors at 2 institutions in 2 countries.

Friso G J CalkoenDepartment of Pediatrics, Immunology, Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Leiden University Medical Center, the Netherlands f.g.j.calkoen@lumc.nl.
Carly VervatDepartment of Pediatrics, Immunology, Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Leiden University Medical Center, the Netherlands.
Else EisingDepartment of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands.
Lisanne S VijfhuizenDepartment of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands.
Peter-Bram A C 't HoenDepartment of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands.
Marry M van den Heuvel-EibrinkDutch Childhood Oncology Group (DCOG), The Hague, the Netherlands Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands.
R Maarten EgelerDepartment of Pediatrics, Immunology, Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Leiden University Medical Center, the Netherlands Department of Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Hospital for Sick Children, University of Toronto, ON, Canada.
Maarten J D van TolDepartment of Pediatrics, Immunology, Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Leiden University Medical Center, the Netherlands.
Lynne M BallDepartment of Pediatrics, Immunology, Hematology/Oncology and Hematopoietic Stem Cell Transplantation, Leiden University Medical Center, the Netherlands.
Leiden University Medical Center · NLStichting Kinderoncologie Nederland · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An aberrant interaction between hematopoietic stem cells and mesenchymal stromal cells has been linked to disease and shown to contribute to the pathophysiology of hematologic malignancies in murine models. Juvenile myelomonocytic leukemia is an aggressive malignant disease affecting young infants. Here we investigated the impact of juvenile myelomonocytic leukemia on mesenchymal stromal cells. Mesenchymal stromal cells were expanded from bone marrow samples of patients at diagnosis (n=9) and after hematopoietic stem cell transplantation (n=7; from 5 patients) and from healthy children (n=10). Cells were characterized by phenotyping, differentiation, gene expression analysis (of controls and samples obtained at diagnosis) and in vitro functional studies assessing immunomodulation and hematopoietic support. Mesenchymal stromal cells from patients did not differ from controls in differentiation capacity nor did they differ in their capacity to support in vitro hematopoiesis. Deep-SAGE sequencing revealed differential mRNA expression in patient-derived samples, including genes encoding proteins involved in immunomodulation and cell-cell interaction. Selected gene expression normalized during remission after successful hematopoietic stem cell transplantation. Whereas natural killer cell activation and peripheral blood mononuclear cell proliferation were not differentially affected, the suppressive effect on monocyte to dendritic cell differentiation was increased by mesenchymal stromal cells obtained at diagnosis, but not at time of remission. This study shows that active juvenile myelomonocytic leukemia affects the immune response-related gene expression and function of mesenchymal stromal cells. In contrast, the differential gene expression of hematopoiesis-related genes could not be supported by functional data. Decreased immune surveillance might contribute to the therapy resistance and progression in juvenile myelomonocytic leukemia.

Indexed as

Gene Expression Regulation, LeukemicHematopoiesisCells, CulturedChild, PreschoolFemaleHumansInfantLeukemia, Myelomonocytic, JuvenileMaleMesenchymal Stem Cells

Identifiers

PMID26294732
PMCPMC4825298
OpenAlexW2173631987

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.