Evidence map›Paper›PMID 20357827›Full record

ArticleLeukemia2010

Novel insight into stem cell mobilization-plasma sphingosine-1-phosphate is a major chemoattractant that directs the egress of hematopoietic stem progenitor cells from the bone marrow and its level in peripheral blood increases during mobilization due to activation of complement cascade/membrane attack complex.

M Z Ratajczak, H Lee, M Wysoczynski, W Wan, W Marlicz, M J Laughlin, M Kucia, A Janowska-Wieczorek, J Ratajczak

Open access · greenAbstract read
In one paragraph

Article in Leukemia, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 159 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
159citing papers in PubMed, 2 pooled it
13.1field-weighted citation impact, top 1% 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

159 citing papers in PubMed, 2 syntheses or guidelines pooled it, 254 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Review
  7. Regulation of CXCR4 function by S1PCell communication and signaling : CCS · 2025
    Article
  8. Article
  9. Review
  10. Therapeutic Applications of Aptamers.International journal of molecular sciences · 2024
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Purinergic Signaling and Its Role in Mobilization of Bone Marrow Stem Cells.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  16. Ex Vivo Expansion and Homing of Human Cord Blood Hematopoietic Stem Cells.Advances in experimental medicine and biology · 2023
    Article
  17. Article
  18. Review
  19. Review
  20. Review

99 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

9 authors at 4 institutions in 3 countries.

M Z RatajczakStem Cell Biology Program at the James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA. mzrata01@louisville.edu
H Lee
M Wysoczynski
W Wan
W Marlicz
M J Laughlin
M Kucia
A Janowska-Wieczorek
J Ratajczak
University of Louisville · USCleveland Cord Blood Center · USPomeranian Medical University · PLUniversity of Alberta · CA

Funding

Novel mechanisms involving complement cascade in stem cell traffickingR01DK074720 · NIDDK · UNIVERSITY OF LOUISVILLE · PI RATAJCZAK, MARIUSZ Z · 2007 to 2020
$4.1M
The CXCR4-SDF-1 Axis in Metastatic RhabdomyosarcomaR01CA106281 · NCI · UNIVERSITY OF LOUISVILLE · PI RATAJCZAK, MARIUSZ Z · 2005 to 2009
$1.3M
Stem Cell Priming to Enhance EngraftmentRC1HL099447 · NHLBI · UNIVERSITY OF VIRGINIA · PI LAUGHLIN, MARY J. · 2009 to 2010
$998k
CIHR XE00025NCI NIH HHS R01 CA106281NHLBI NIH HHS 1RC1 HL099447NHLBI NIH HHS RC1 HL099447NIDDK NIH HHS R01 DK074720
6 · The paper itself

Abstract

The complement cascade (CC) becomes activated and its cleavage fragments play a crucial role in the mobilization of hematopoietic stem/progenitor cells (HSPCs). Here, we sought to determine which major chemoattractant present in peripheral blood (PB) is responsible for the egress of HSPCs from the bone marrow (BM). We noticed that normal and mobilized plasma strongly chemoattracts HSPCs in a stromal-derived factor-1 (SDF-1)-independent manner because (i) plasma SDF-1 level does not correlate with mobilization efficiency; (ii) the chemotactic plasma gradient is not affected in the presence of AMD3100 and (iii) it is resistant to denaturation by heat. Surprisingly, the observed loss of plasma chemotactic activity after charcoal stripping suggested the involvement of bioactive lipids and we focused on sphingosine-1-phosphate (S1P), a known chemoattracant of HSPCs. We found that S1P (i) creates in plasma a continuously present gradient for BM-residing HSPCs; (ii) is at physiologically relevant concentrations a chemoattractant several magnitudes stronger than SDF-1 and (iii) its plasma level increases during mobilization due to CC activation and interaction of the membrane attack complex (MAC) with erythrocytes that are a major reservoir of S1P. We conclude and propose a new paradigm that S1P is a crucial chemoattractant for BM-residing HSPCs and that CC through MAC induces the release of S1P from erythrocytes for optimal egress/mobilization of HSPCs.

Indexed as

Cell MovementHematopoietic Stem Cell MobilizationAnimalsAnti-HIV AgentsBenzylaminesBone MarrowChemokine CXCL12Colony-Forming Units AssayComplement ActivationComplement C5Complement Membrane Attack ComplexCyclamsEnzyme-Linked Immunosorbent AssayErythrocytesHematopoietic Stem CellsHeterocyclic CompoundsAnti-HIV AgentsBenzylaminesChemokine CXCL12Complement C5Complement Membrane Attack ComplexCxcl12 protein, mouseCyclamsHeterocyclic CompoundsLysophospholipidsplerixaforReceptors, CXCR4Sphingosinesphingosine 1-phosphate

Identifiers

PMID20357827
PMCPMC2946378
OpenAlexW1985337146

What OpenQuestion holds

Textmetadata
LicenceTDM
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.