Evidence map›Paper›PMID 25381126›Full record

ArticleHaematologica2015

In vitro human embryonic stem cell hematopoiesis mimics MYB-independent yolk sac hematopoiesis.

Stijn Vanhee, Katrien De Mulder, Yasmine Van Caeneghem, Greet Verstichel, Nadine Van Roy, Björn Menten, Imke Velghe, Jan Philippé, Dominique De Bleser, Bart N Lambrecht and 4 more

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 49 citations in OpenAlex.

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  18. Macrophages and Cardiovascular Health.Physiological reviews · 2018
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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 3 institutions in 1 country.

Stijn VanheeLaboratory for Experimental Immunology, Ghent University, Belgium.
Katrien De MulderLaboratory for Experimental Immunology, Ghent University, Belgium.
Yasmine Van CaeneghemLaboratory for Experimental Immunology, Ghent University, Belgium.
Greet VerstichelLaboratory for Experimental Immunology, Ghent University, Belgium.
Nadine Van RoyCenter for Medical Genetics, Ghent University, Belgium.
Björn MentenCenter for Medical Genetics, Ghent University, Belgium.
Imke VelgheLaboratory for Experimental Immunology, Ghent University, Belgium.
Jan PhilippéDepartment of Clinical Biology, Microbiology and Immunology, Ghent University Hospital, Belgium.
Dominique De BleserRed Cross Flanders, Ghent, Belgium.
Bart N LambrechtLaboratory of Immunoregulation and Mucosal Immunology, Department of Pulmonary Medicine, Ghent University Hospital, Belgium Flanders Institute for Biotechnology (VIB) Inflammation Research Center, Ghent University, Belgium.
Tom TaghonLaboratory for Experimental Immunology, Ghent University, Belgium.
Georges LeclercqLaboratory for Experimental Immunology, Ghent University, Belgium.
Tessa KerreLaboratory for Experimental Immunology, Ghent University, Belgium.
Bart VandekerckhoveLaboratory for Experimental Immunology, Ghent University, Belgium bart.vandekerckhove@ugent.be.
Ghent University · BEGhent University Hospital · BEVlaams Instituut voor Biotechnologie · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although hematopoietic precursor activity can be generated in vitro from human embryonic stem cells, there is no solid evidence for the appearance of multipotent, self-renewing and transplantable hematopoietic stem cells. This could be due to short half-life of hematopoietic stem cells in culture or, alternatively, human embryonic stem cell-initiated hematopoiesis may be hematopoietic stem cell-independent, similar to yolk sac hematopoiesis, generating multipotent progenitors with limited expansion capacity. Since a MYB was reported to be an excellent marker for hematopoietic stem cell-dependent hematopoiesis, we generated a MYB-eGFP reporter human embryonic stem cell line to study formation of hematopoietic progenitor cells in vitro. We found CD34(+) hemogenic endothelial cells rounding up and developing into CD43(+) hematopoietic cells without expression of MYB-eGFP. MYB-eGFP(+) cells appeared relatively late in embryoid body cultures as CD34(+)CD43(+)CD45(-/lo) cells. These MYB-eGFP(+) cells were CD33 positive, proliferated in IL-3 containing media and hematopoietic differentiation was restricted to the granulocytic lineage. In agreement with data obtained on murine Myb(-/-) embryonic stem cells, bright eGFP expression was observed in a subpopulation of cells, during directed myeloid differentiation, which again belonged to the granulocytic lineage. In contrast, CD14(+) macrophage cells were consistently eGFP(-) and were derived from eGFP-precursors only. In summary, no evidence was obtained for in vitro generation of MYB(+) hematopoietic stem cells during embryoid body cultures. The observed MYB expression appeared late in culture and was confined to the granulocytic lineage.

Indexed as

Cell DifferentiationCell LineageCells, CulturedEmbryoid BodiesEmbryonic Stem CellsEndothelium, VascularFlow CytometryGranulocytesGreen Fluorescent ProteinsHematopoiesisHematopoietic Stem CellsHumansIn Vitro TechniquesMacrophagesProto-Oncogene Proteins c-mybReal-Time Polymerase Chain Reactionenhanced green fluorescent proteinGreen Fluorescent ProteinsProto-Oncogene Proteins c-mybRNA, Messenger

Identifiers

PMID25381126
PMCPMC4803135
OpenAlexW2139413110

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.