Linked Life Data

14563322

Source:http://linkedlifedata.com/resource/pubmed/id/14563322

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-10-17
pubmed:abstractText
In this study we provide evidence that the SDF-1alpha/CXCR4 chemokine axis is involved in both the retention of neutrophils within the bone marrow and the homing of senescent neutrophils back to the bone marrow. We show that the functional responses of freshly isolated human and murine neutrophils to CXCR2 chemokines are significantly attenuated by SDF-1alpha, acting via CXCR4. As a consequence, the mobilization of neutrophils from the bone marrow in vivo by the CXCR2-chemokine, KC, was dramatically enhanced by blocking the effects of endogenous SDF-1alpha using a specific CXCR4 antagonist. As neutrophils age, they upregulate expression of CXCR4 and acquire the ability to migrate toward SDF-1alpha. We show here that these senescent CXCR4(high) neutrophils preferentially home to the bone marrow in vivo in a CXCR4-dependent manner, suggesting a previously undefined mechanism for the clearance of senescent neutrophils from the circulation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1074-7613
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
583-93
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Chemokines acting via CXCR2 and CXCR4 control the release of neutrophils from the bone marrow and their return following senescence.
pubmed:affiliation
Leukocyte Biology Section, Division of Biomedical Sciences, Faculty of Medicine, Imperial College School of Science, Technology and Medicine, Sir Alexander Fleming Building, Exhibition Road, South Kensington, London SW7 2AZ, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't