Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2005-6-3
pubmed:abstractText
We previously showed that intercellular adhesion molecule-1 (ICAM-1) expression by the host is essential for lymphoma dissemination. Because selectins usually act in a coordinated fashion with ICAM-1 in the recruitment of circulating normal cells, we investigated their implication in lymphomagenesis and metastasis. Using selectin-deficient mice, we found that though the absence of E-, P-, or L-selectins did not affect the triggering of radiation-induced thymic lymphoma, the absence of L-selectin on lymphoma cells reduced their capacity to grow in the thymus. This defect, however, was overcome by altering the integrity of the L-selectin-mediated interactions in the thymus, as shown in L-selectin-deficient mice and by adoptive transfer experiments. We also found that lack of selectin expression by the host significantly delayed the dissemination of lymphomas to peripheral tissues. This resistance of selectin-deficient mice to lymphoma metastasis was dependent on the intrinsic properties of lymphoma cells because highly tumorigenic variants were insensitive to the absence of selectins. Observations that lymphoma cells disseminate with the same efficiency in normal and selectin-deficient mice suggest that selectins exert their influence at the posthoming stage of metastasis, as does ICAM-1. These results provide definitive evidence that selectins play a significant role at different steps of T-cell lymphoma development.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4800-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15705798-Animals, pubmed-meshheading:15705798-Bone Marrow Cells, pubmed-meshheading:15705798-Bone Marrow Transplantation, pubmed-meshheading:15705798-Cell Line, Tumor, pubmed-meshheading:15705798-Cell Movement, pubmed-meshheading:15705798-DNA Primers, pubmed-meshheading:15705798-E-Selectin, pubmed-meshheading:15705798-Flow Cytometry, pubmed-meshheading:15705798-Genotype, pubmed-meshheading:15705798-Hybridomas, pubmed-meshheading:15705798-Intercellular Adhesion Molecule-1, pubmed-meshheading:15705798-L-Selectin, pubmed-meshheading:15705798-Lymphoma, T-Cell, pubmed-meshheading:15705798-Mice, pubmed-meshheading:15705798-Mice, Inbred C57BL, pubmed-meshheading:15705798-Neoplasm Metastasis, pubmed-meshheading:15705798-Neoplasms, Radiation-Induced, pubmed-meshheading:15705798-P-Selectin, pubmed-meshheading:15705798-Polymerase Chain Reaction, pubmed-meshheading:15705798-Rats, pubmed-meshheading:15705798-Selectins, pubmed-meshheading:15705798-T-Lymphocytes, pubmed-meshheading:15705798-Thymus Gland, pubmed-meshheading:15705798-Whole-Body Irradiation
pubmed:year
2005
pubmed:articleTitle
Role of selectins in the triggering, growth, and dissemination of T-lymphoma cells: implication of L-selectin in the growth of thymic lymphoma.
pubmed:affiliation
Institut National de la Recherche Scientifique, Université du Québec, Laval, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't