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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

CD1b is expressed in multiple sclerosis lesions.

Recent observations have shown that CD1 molecules act as restriction elements in the presentation of antigens to specialized subsets of T cells. To examine the expression of CD1 molecules in multiple sclerosis ( MS) lesions, frozen sections of central nervous system (CNS) tissues from nine MS and three other neurological disease (OND) patients, one patient with Wilson's disease, and one non-neurological control were stained by immunocytochemistry. In chronic-active MS lesions, CD1b immunoreactivity was prominent on perivascular inflammatory cells whereas macrophages within the lesion showed little reactivity. At the lesion edge, intense immunoreactivity for CD1b was found on hypertrophic astrocytes. High level expression of CD1b in MS lesions was found to colocalize with the presence of GM-CSF in astrocytes. In chronic-silent lesions, CD1b expression was found on only a few perivascular astrocytic foot processes and the occasional perivascular macrophage. CD1b was not found in the tissues studied for control purposes. In contrast, MHC class II expression was detected on microglia in all tissues examined. The relatively low level expression of CD1b in normal-appearing tissues, chronic-silent lesions and in the OND controls supports the conclusion that the expression of CD1b in active MS lesions is significantly upregulated and could contribute to lesion development.[1]

References

  1. CD1b is expressed in multiple sclerosis lesions. Battistini, L., Fischer, F.R., Raine, C.S., Brosnan, C.F. J. Neuroimmunol. (1996) [Pubmed]
 
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