Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-3-22
pubmed:abstractText
Human soluble Fas ligand (sFasL) has an apoptotic activity in contrast to murine sFasL. The physiological function of human sFasL is not known, while the pathological consequence of sFasL overproduction has been reported. To understand the physiological function of (human) sFasL, murine and human lymphocytes were treated with sFasL. sFasL treatment significantly decreased CD45RBlo "memory" CD4+ lymphocyte fraction and increased propidium iodide (PI)+ apoptotic CD45RBloCD4+ lymphocytes among murine peripheral lymphocytes. However, sFasL treatment neither decreased CD45RO+ "memory" CD4+ lymphocyte fraction nor increased PI+ CD45RO+CD4+ lymphocytes among human peripheral lymphocytes, suggesting that the deletion of memory cells by sFasL had already occurred in vivo. Patients with systemic lupus erythematosus had sFasL-susceptible "memory" cell fraction suggesting an incomplete deletion of such "memory" cells. These results suggest that the physiological function of human sFasL is to delete the potentially auto-reactive "memory" lymphocytes, which complements membrane FasL (mFasL)-mediated deletion of auto-reactive cells in human beings but not in mice.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0891-6934
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
15-20
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:11908702-Animals, pubmed-meshheading:11908702-Antigens, CD45, pubmed-meshheading:11908702-Apoptosis, pubmed-meshheading:11908702-Autoimmunity, pubmed-meshheading:11908702-CD4-Positive T-Lymphocytes, pubmed-meshheading:11908702-Clonal Deletion, pubmed-meshheading:11908702-Cytotoxicity, Immunologic, pubmed-meshheading:11908702-Diabetes Mellitus, Type 1, pubmed-meshheading:11908702-Fas Ligand Protein, pubmed-meshheading:11908702-Humans, pubmed-meshheading:11908702-Immunologic Memory, pubmed-meshheading:11908702-Lupus Erythematosus, Systemic, pubmed-meshheading:11908702-Membrane Glycoproteins, pubmed-meshheading:11908702-Mice, pubmed-meshheading:11908702-Mice, Inbred ICR, pubmed-meshheading:11908702-Mice, Inbred NOD, pubmed-meshheading:11908702-Protein Tyrosine Phosphatase, Non-Receptor Type 1, pubmed-meshheading:11908702-Solubility, pubmed-meshheading:11908702-Species Specificity, pubmed-meshheading:11908702-T-Lymphocyte Subsets
pubmed:year
2002
pubmed:articleTitle
Soluble Fas ligand-susceptible "memory" cells in mice but not in human: potential role of soluble Fas ligand in deletion of auto-reactive cells.
pubmed:affiliation
Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro, Research Support, Non-U.S. Gov't