Journal
ACTA NEUROPATHOLOGICA
Volume 111, Issue 4, Pages 289-299Publisher
SPRINGER
DOI: 10.1007/s00401-006-0045-0
Keywords
multiple sclerosis lesions; macrophages; osteopontin; matrix metalloproteinases; calpains; inducible nitro oxide synthase
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Funding
- Multiple Sclerosis Society [729] Funding Source: Medline
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Damage to axons in acute multiple sclerosis (MS) lesions is now well established but the mechanisms of this damage remain obscure. Here we have applied a panel of antibodies that identify cell populations and proteins contained in them with a view to detecting those cells and proteins that are localised particularly closely to damaged axons in acute, sub-acute and border-active MS plaques. Results are expressed semi-quantitatively and graphs produced that show that many of the markers show enhanced expression at sites of axon damage. However, the sharpest increase in expression in relation to axon damage was seen for Calpain I (mu-calpain), inducible nitric oxide synthase and MMP-2, suggesting that these proteins may form part of a group of proteins responsible for the initiation of myelin and/or axon damage seen in MS lesions.
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