RGD Reference Report - JAGGED1 and delta1 differentially regulate the outcome of experimental autoimmune encephalomyelitis. - Rat Genome Database

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JAGGED1 and delta1 differentially regulate the outcome of experimental autoimmune encephalomyelitis.

Authors: Elyaman, W  Bradshaw, EM  Wang, Y  Oukka, M  Kivisakk, P  Chiba, S  Yagita, H  Khoury, SJ 
Citation: Elyaman W, etal., J Immunol. 2007 Nov 1;179(9):5990-8.
RGD ID: 6482235
Pubmed: PMID:17947672   (View Abstract at PubMed)

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.

RGD Manual Disease Annotations    Click to see Annotation Detail View

Objects Annotated

Genes (Rattus norvegicus)
Dll1  (delta like canonical Notch ligand 1)
Jag1  (jagged canonical Notch ligand 1)

Genes (Mus musculus)
Dll1  (delta like canonical Notch ligand 1)
Jag1  (jagged 1)

Genes (Homo sapiens)
DLL1  (delta like canonical Notch ligand 1)
JAG1  (jagged canonical Notch ligand 1)


Additional Information