Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2007-10-19
pubmed:abstractText
Notch signaling plays an important role during T cell development in the thymus and in T cell activation but the role of Notch in autoimmunity is not clear. We investigated the role of Jagged1 and Delta1 in experimental autoimmune encephalomyelitis. During experimental autoimmune encephalomyelitis, Delta1 expression is up-regulated on dendritic cells and B cells after priming while Jagged1 is up-regulated only on dendritic cells. Administration of anti-Jagged1 Ab exacerbated clinical disease while that of anti-Delta1 Ab reduced the severity of the clinical disease. In contrast, administration of Jagged1-Fc protected from disease, that of Delta1-Fc exacerbated disease. Treatment with Jagged1-Fc was associated with increased IL-10-producing Ag-specific cells in the CNS, while anti-Jagged1 decreased the frequency of IL-10-producing cells. Treatment with Delta1-Fc increased Th1 cells in the CNS, while anti-Delta-1 decreased the frequency of Th1 cells. Manipulation of Delta1 or Jagged1 had no effect on the frequency of Th17 cells or FoxP3(+) cells. Moreover, Jagged1 may play a role in CNS homeostasis because murine astrocytes specifically express Jagged1 that is up-regulated by TGF-beta, whereas IFN-gamma, TNF-alpha, and IL-17 decrease Jagged1 expression. Our study provides novel data about differential roles of Notch ligands in regulating inflammation in the periphery as well as in the CNS.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
179
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5990-8
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:17947672-Animals, pubmed-meshheading:17947672-Antigen-Presenting Cells, pubmed-meshheading:17947672-Astrocytes, pubmed-meshheading:17947672-Calcium-Binding Proteins, pubmed-meshheading:17947672-Cell Differentiation, pubmed-meshheading:17947672-Down-Regulation, pubmed-meshheading:17947672-Encephalomyelitis, Autoimmune, Experimental, pubmed-meshheading:17947672-Female, pubmed-meshheading:17947672-Forkhead Transcription Factors, pubmed-meshheading:17947672-Intercellular Signaling Peptides and Proteins, pubmed-meshheading:17947672-Intracellular Signaling Peptides and Proteins, pubmed-meshheading:17947672-Ligands, pubmed-meshheading:17947672-Membrane Proteins, pubmed-meshheading:17947672-Mice, pubmed-meshheading:17947672-Mice, Inbred C57BL, pubmed-meshheading:17947672-Receptors, Notch, pubmed-meshheading:17947672-Signal Transduction, pubmed-meshheading:17947672-T-Lymphocytes
pubmed:year
2007
pubmed:articleTitle
JAGGED1 and delta1 differentially regulate the outcome of experimental autoimmune encephalomyelitis.
pubmed:affiliation
Center for Neurologic Diseases, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural