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TWEAK is expressed by glial cells, induces astrocyte proliferation and increases EAE severity

Desplat-Jego, Sophie
Varriale, Simone
Creidy, Rita
Terra, Rafik
Bernard, Dominique
Khrestchatisky, Michel
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Published in Journal of neuroimmunology. 2002, vol. 133, no. 1-2, p. 116-123
Abstract TWEAK is a new TNF family member with proinflammatory and proliferative effects on different cell types, mediated by the recently identified Fn14 receptor. TWEAK expression was analyzed on mouse microglial cells and astrocytes. Both cell types express TWEAK mRNA. Astrocytes expressed Fn14 and proliferated in the presence of rTWEAK. TWEAK mRNA is expressed in normal CNS and its steady state level increases in spinal cord during EAE. Finally, EAE severity is enhanced in soluble TWEAK-overexpressing transgenic mice. These results support the contention that TWEAK is involved in CNS inflammation.
Keywords AnimalsApoptosis Regulatory ProteinsAstrocytes/immunology/ metabolismCarrier Proteins/ genetics/pharmacologyCell Division/drug effects/genetics/immunologyCells, CulturedCentral Nervous System/growth & development/immunology/ metabolismDisease ProgressionDisease Susceptibility/immunologyEncephalomyelitis, Autoimmune, Experimental/genetics/immunology/ metabolismGene Expression Regulation/immunologyInflammation Mediators/ pharmacologyMiceMice, TransgenicMicroglia/immunology/ metabolismRNA, Messenger/immunology/metabolismTumor Necrosis Factors
PMID: 12446014
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DESPLAT-JEGO, Sophie et al. TWEAK is expressed by glial cells, induces astrocyte proliferation and increases EAE severity. In: Journal of neuroimmunology, 2002, vol. 133, n° 1-2, p. 116-123. doi: 10.1016/s0165-5728(02)00368-5

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Deposited on : 2010-08-27

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