Evidence map›Paper›PMID 19641520›Full record

ArticleLeukemia2009

The TLR1/2 agonist PAM(3)CSK(4) instructs commitment of human hematopoietic stem cells to a myeloid cell fate.

K De Luca, V Frances-Duvert, M-J Asensio, R Ihsani, E Debien, M Taillardet, E Verhoeyen, C Bella, S Lantheaume, L Genestier and 1 more

Abstract read
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In one paragraph

Article in Leukemia, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
2.0field-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

69 citing papers in PubMed, 122 citations in OpenAlex.

  1. Trial
  2. Dysregulated Bone Marrow Contributes to Glomerular Injury through Soluble Factors.Journal of the American Society of Nephrology : JASN · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Hematopoietic responses to SARS-CoV-2 infection.Cellular and molecular life sciences : CMLS · 2022
    Review
  11. Review
  12. Review
  13. Review
  14. Prostaglandin EStem cell reviews and reports · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

9 more citing papers are in PubMed but not listed here.

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

11 authors at 2 institutions in 1 country.

K De LucaINSERM, U851, 21 Avenue Tony Garnier, Lyon, France.
V Frances-Duvert
M-J Asensio
R Ihsani
E Debien
M Taillardet
E Verhoeyen
C Bella
S Lantheaume
L Genestier
T Defrance
Université Claude Bernard Lyon 1 · FRCentre Hospitalier de Valence · FR

Funding

Arthritis Research UK
6 · The paper itself

Abstract

Toll-like receptors (TLRs) constitute a family of nonpolymorphic receptors that are devoted to pathogen recognition. In this work, we have explored the impact of TLR ligands (TLR-L) on human hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs). We show that HSCs and HPCs have a comparable pattern of expression of TLR transcripts characterized by the predominance of TLR1, -2, -3, -4 and -6. In long-term cultures of HSCs, HPCs and stromal cells, most TLR-L profoundly inhibited B-cell development while preserving or enhancing the production of myeloid cells. In short-term cultures, the TLR1/2 ligand PAM(3)CSK(4) induced a large proportion of HPCs to express markers of the myelomonocytic lineage. PAM(3)CSK(4) induced only marginal expression of myeloid lineage markers on HSCs but promoted their myeloid commitment as revealed by their acquisition of the phenotype of multi- and bipotential myeloid progenitors and by upregulation of the transcription factors PU.1, C/EBPalpha and GATA-1. Our results suggest that TLR agonists can bias the lineage commitment of human HSCs and shift the differentiation of lineage-committed progenitors to favor myelopoiesis at the expense of lymphoid B-cell development.

Indexed as

AnimalsAntigens, CD34B-LymphocytesCell DifferentiationCell LineCell LineageDNA-Binding ProteinsFetal BloodHematopoietic Stem CellsHumansLipopeptidesLymphopoiesisMiceMice, Inbred C57BLMice, KnockoutMyeloid CellsAntigens, CD34DNA-Binding ProteinsLipopeptidesPam(3)CSK(4) peptideRag2 protein, mouseTLR2 protein, humanToll-Like Receptor 1Toll-Like Receptor 2

Identifiers

PMID19641520
OpenAlexW2004621173

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.