Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-9-24
pubmed:abstractText
Tumor necrosis factor-alpha (TNF-alpha) stimulates the expression CXC chemokines, i.e. macrophage inflammatory protein-2 (MIP-2) and cytokine-induced neutrophil chemoattractant (KC), and neutrophil extravasation. However, the individual role of MIP-2 and KC in the recruitment process of neutrophils in vivo remains elusive. By use of intravital microscopy in the mouse cremaster muscle, we analyzed the effect of specific inhibition of CXC chemokines, alone and together, on TNF-alpha-induced leukocyte rolling, firm adhesion and recruitment. After stimulation with TNF-alpha, the mRNA levels of both MIP-2 and KC were increased. Notably, separate administration of antibodies directed against MIP-2 and KC had no effect on TNF-alpha-induced neutrophil extravasation. In contrast, combined injection of anti-MIP-2 and anti-KC antibodies markedly inhibited extravascular migration of neutrophils. Moreover, MIP-2 and KC dose-dependently increased neutrophil recruitment, however, no synergistic effect of combined stimulation with MIP-2 and KC on the neutrophil response was found. Taken together, these data suggest that MIP-2 and KC are functionally redundant in TNF-alpha-induced neutrophil accumulation and that neutralization of both MIP-2 and KC may be necessary in order to reduce accumulation of neutrophils in cytokine-activated tissues.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
427
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
277-83
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:11567658-Animals, pubmed-meshheading:11567658-Antibodies, Monoclonal, pubmed-meshheading:11567658-Blood Flow Velocity, pubmed-meshheading:11567658-Capillary Permeability, pubmed-meshheading:11567658-Chemokine CXCL2, pubmed-meshheading:11567658-Chemokines, pubmed-meshheading:11567658-Chemotactic Factors, pubmed-meshheading:11567658-Chemotaxis, Leukocyte, pubmed-meshheading:11567658-Dose-Response Relationship, Drug, pubmed-meshheading:11567658-Erythrocytes, pubmed-meshheading:11567658-Gene Expression Regulation, pubmed-meshheading:11567658-Leukocyte Count, pubmed-meshheading:11567658-Male, pubmed-meshheading:11567658-Mice, pubmed-meshheading:11567658-Mice, Inbred BALB C, pubmed-meshheading:11567658-Muscle, Skeletal, pubmed-meshheading:11567658-Neutrophil Infiltration, pubmed-meshheading:11567658-Neutrophils, pubmed-meshheading:11567658-RNA, Messenger, pubmed-meshheading:11567658-Rats, pubmed-meshheading:11567658-Tumor Necrosis Factor-alpha
pubmed:year
2001
pubmed:articleTitle
Redundant function of macrophage inflammatory protein-2 and KC in tumor necrosis factor-alpha-induced extravasation of neutrophils in vivo.
pubmed:affiliation
Department of Surgery, Malmö University Hospital, Lund University, 20502 Malmö, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't