RGD Reference Report - Congenic mapping confirms a locus on rat chromosome 10 conferring strong protection against myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis. - Rat Genome Database

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Congenic mapping confirms a locus on rat chromosome 10 conferring strong protection against myelin oligodendrocyte glycoprotein-induced experimental autoimmune encephalomyelitis.

Authors: Jagodic, M  Kornek, B  Weissert, R  Lassmann, H  Olsson, T  Dahlman, I 
Citation: Jagodic M, etal., Immunogenetics 2001 Jul;53(5):410-5.
RGD ID: 1302800
Pubmed: PMID:11486278   (View Abstract at PubMed)

Myelin oligodendrocyte glycoprotein (MOG)-induced experimental autoimmune encephalomyelitis (EAE) in rats closely mimics the human disease multiple sclerosis (MS). As in MS, genetic predisposition to MOG-EAE is regulated by both MHC and non-MHC genes. Based on disease regulatory influences on MOG-EAE on chromosome 10 in an F2 cross between susceptible DA and resistant ACI rats, we have now isolated this locus in a congenic rat strain to enable further dissection of disease mechanisms. This region is of particular interest, since it is homologous to human 17q for which human whole-genome scans have indicated harbors genes regulating susceptibility to MS. Phenotypic comparison between DA and the congenic DA.ACI-D10Rat2-D10Rat29 strain confirms that the chromosomal segment harbors gene(s) conferring strong protection against MOG-EAE. Furthermore, resistance to EAE in this congenic strain is associated with absence or a low level of inflammation and demyelination in the central nervous system. Levels of anti-MOG antibody isotypes did not differ between parental and congenic rats, thus an action on Th1/Th2 differentiation is unlikely. In conclusion, this is the first example of an EAE-regulating locus isolated in a congenic rat strain with retained phenotype. The mechanism by which gene(s) in the region act is still unclear and will require further studies with this congenic rat strain as a tool.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
DA/ZtmKiniRatExperimental Autoimmune Encephalomyelitis inducedIAGPmyelin oligodendrocyte glycoprotein RGD 
Eae18RatExperimental Autoimmune Encephalomyelitis  IDA  RGD 

Phenotype Annotations    Click to see Annotation Detail View

Mammalian Phenotype

Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
DA.ACI-(D10Rat2-D10Rat29)/KiniRatdecreased susceptibility to experimental autoimmune encephalomyelitis inducedIAGPmyelin oligodendrocyte glycoproteincompared to DA/ZtmKiniRGD 

Objects Annotated

QTLs
Eae18  (Experimental allergic encephalomyelitis QTL 18)


Additional Information