Abstract:
:To investigate immune mechanisms in the etiology of idiopathic sensory neuronopathy (ISN), we studied neurite outgrowth inhibition and antibody binding to neuronal tissue of serum from 4 patients with ISN. Rat dorsal root ganglion (DRG) cells were cultured in the presence of serum from ISN patients and controls. After 48 h of incubation, neurite outgrowth was quantified with a neurofilament ELISA. Serum from ISN patients significantly inhibited DRG neurite outgrowth compared to controls. ISN serum also strongly immunostained fixed cultured and cryostat rat DRG neurons (at dilutions up to 1:10,240), whereas serum from controls did not. Western blots showed unique binding patterns to DRG proteins in 3 ISN patients compared with controls, but a single band corresponding in all ISN patients was not found. The inhibitory effect of ISN serum on neurite outgrowth and the presence of circulating anti-DRG antibodies in the acute phase of the disease supports an immune-mediated pathogenesis of ISN.
journal_name
J Neuroimmunoljournal_title
Journal of neuroimmunologyauthors
van Dijk GW,Wokke JH,Notermans NC,van den Berg LH,Bär PRdoi
10.1016/s0165-5728(96)00225-1subject
Has Abstractpub_date
1997-04-01 00:00:00pages
165-72issue
1-2eissn
0165-5728issn
1872-8421pii
S0165-5728(96)00225-1journal_volume
74pub_type
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