Abstract:
:Alpha-/beta-dystroglycans (DG) located at the outmost layer of myelin sheath play a critical role in its formation and stability in the peripheral nerve system. The demyelination of nerve fibers is present in autoimmune neuritis, however, it is not known about the molecular mechanisms underlying this pathological process. In an animal model of experimental autoimmune neuritis, we observed that beta-DG cleavage was associated with the demyelination of peripheral nerves. The neuritis and beta-DG cleavage were accompanied by matrix metalloproteinase (MMP)-2/-9 over-expressions and attenuated by captopril, a MMP inhibitor. The blockade of MMPs also improves clinical signs. Our results reveal a crucial role of MMP-mediated beta-DG cleavage in autoimmune neuritis, such as Guillain-Barre' syndrome, and bring insights into therapeutic strategies for autoimmune diseases.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Zhao XL,Li GZ,Sun B,Zhang ZL,Yin YH,Tian YS,Li H,Li HL,Wang de S,Zhong Ddoi
10.1016/j.bbrc.2010.01.062subject
Has Abstractpub_date
2010-02-19 00:00:00pages
551-6issue
4eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)00111-7journal_volume
392pub_type
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