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RESEARCH PRODUCT

Oligodendrocyte-specific FADD deletion protects mice from autoimmune-mediated demyelination.

Conor Mc GuireRudi BeyaertAri WaismanMozes SzeGeert Van LooRiet De RyckeUta WolkeManolis PasparakisThomas VolckaertMarco Prinz

subject

Encephalomyelitis Autoimmune ExperimentalMultiple Sclerosisgenetic structuresEncephalomyelitisFas-Associated Death Domain ProteinImmunologyApoptosisurologic and male genital diseasesMiceConditional gene knockoutDemyelinating diseasemedicineImmunology and AllergyAnimalsFADDLymphocytesMyelin SheathDeath domainInflammationMice KnockoutbiologyMultiple sclerosisMacrophagesfungiExperimental autoimmune encephalomyelitismedicine.diseaseOligodendrocyteOligodendrogliamedicine.anatomical_structureGene Expression RegulationSpinal CordCancer researchbiology.proteinbiological phenomena cell phenomena and immunityGene Deletion

description

Abstract Apoptosis of oligodendrocytes (ODCs), the myelin-producing glial cells in the CNS, plays a central role in demyelinating diseases such as multiple sclerosis and experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis. To investigate the mechanism behind ODC apoptosis in EAE, we made use of conditional knockout mice lacking the adaptor protein FADD specifically in ODCs (FADDODC-KO). FADD mediates apoptosis by coupling death receptors with downstream caspase activation. In line with this, ODCs from FADDODC-KO mice were completely resistant to death receptor-induced apoptosis in vitro. In the EAE model, FADDODC-KO mice followed an ameliorated clinical disease course in comparison with control littermates. Lymphocyte and macrophage infiltration into the spinal cord parenchyma was significantly reduced, as was the extent of demyelination and proinflammatory gene expression. Collectively, our data show that FADD is critical for ODC apoptosis and the development of autoimmune demyelinating disease.

yearjournalcountryeditionlanguage
2010-12-15Journal of immunology (Baltimore, Md. : 1950)
10.4049/jimmunol.1000930https://pubmed.ncbi.nlm.nih.gov/21068410