Evidence map›Paper›PMID 21769103›Full record

ArticleLeukemia2012

Conditioning for hematopoietic transplantation activates the complement cascade and induces a proteolytic environment in bone marrow: a novel role for bioactive lipids and soluble C5b-C9 as homing factors.

C H Kim, W Wu, M Wysoczynski, A Abdel-Latif, M Sunkara, A Morris, M Kucia, J Ratajczak, M Z Ratajczak

Open access · greenAbstract read
In one paragraph

Article in Leukemia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

85 citing papers in PubMed, 131 citations in OpenAlex.

  1. Article
  2. Article
  3. Role of Ceramide Kinase/C1P in the Regulation of Cell Growth and Survival.International journal of molecular sciences · 2025
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25 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 2 countries.

C H KimDepartment of Medicine, Stem Cell Institute at the James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA.
W Wu
M Wysoczynski
A Abdel-Latif
M Sunkara
A Morris
M Kucia
J Ratajczak
M Z Ratajczak
Pomeranian Medical University · PLUniversity of Kentucky · USJames Graham Brown Foundation · USUniversity of Louisville · US

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
NCI NIH HHS R01 CA106281NIDDK NIH HHS R01 DK074720
6 · The paper itself

Abstract

We have observed that conditioning for hematopoietic transplantation by lethal irradiation induces a proteolytic microenvironment in the bone marrow (BM) that activates the complement cascade (CC). As a result, BM is enriched for proteolytic enzymes and the soluble form of the terminal product of CC activation, the membrane attack complex C5b-C9 (MAC). At the same time, proteolytic enzymes induced in irradiated BM impair the chemotactic activity of α-chemokine stromal-derived factor-1 (SDF-1). As SDF-1 is considered a crucial BM chemoattractant for transplanted hematopoietic stem/progenitor cells (HSPCs), we sought to determine whether other factors that are resistant to proteolytic enzymes have a role in this process, focusing on proteolysis-resistant bioactive lipids. We found that the concentrations of sphingosine-1-phosphate (S1P) and ceramide-1-phosphate (C1P) increase in the BM after conditioning for transplantation and that both S1P and, as we show here for the first time, C1P are potent chemoattractants for HSPCs. Next, we observed that C5-deficient mice that do not generate MAC show impaired engraftment of HSPCs. In support of a role for MAC in homing and engraftment, we found that soluble MAC enhances in a CR3 (CD11b/CD18)-dependent manner the adhesion of HSPCs to BM stromal cells and increases the secretion of SDF-1 by BM stroma. We conclude that an increase in BM levels of proteolytic enzyme-resistant S1P and C1P and activation of CC, which leads to the generation of MAC, has an important and previously underappreciated role in the homing of transplanted HSPCs.

Indexed as

Bone Marrow TransplantationAnimalsBase SequenceBlotting, WesternBone MarrowCeramidesChemokine CXCL12Complement System ProteinsDNA PrimersEnzyme-Linked Immunosorbent AssayFlow CytometryLipidsLysophospholipidsMiceMice, Inbred C57BLProteolysisceramide 1-phosphateCeramidesChemokine CXCL12Complement System ProteinsDNA PrimersLipidsLysophospholipidsSphingosinesphingosine 1-phosphate

Identifiers

PMID21769103
PMCPMC3197954
OpenAlexW1966223886

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.