PMID- 16221290 OWN - NLM STAT- MEDLINE DCOM- 20060207 LR - 20161124 IS - 1085-9489 (Print) IS - 1085-9489 (Linking) VI - 10 IP - 3 DP - 2005 Sep TI - Tumor necrosis factor-alpha-converting enzyme is expressed in the inflamed peripheral nervous system. PG - 311-8 AB - Tumor necrosis factor-alpha (TNF-alpha) is considered to play a critical role in the pathogenesis of immune-mediated inflammatory demyelinating disorders of the peripheral nervous system (PNS). Processing of membrane-bound inactive pro-TNF-alpha into the active soluble cytokine is mediated by a sheddase, the so-called TNF-alpha-converting enzyme (TACE), a member of the A Disintegrin and Metalloproteinase (ADAM) family. We explored the expression of TACE (ADAM-17) in sciatic nerves from Lewis rats with experimental autoimmune neuritis (EAN), an animal model of the Guillain-Barre syndrome (GBS), an immune-mediated polyradiculoneuropathy. To extend our study to human disease, sural nerve biopsies from GBS patients were investigated by immunohistochemistry. In EAN, T lymphocytes could be defined as the cellular source of ADAM-17 with peak expression levels at maximum clinical disease severity. Similarly, in human sural nerves, ADAM-17-expressing T cells could be localized primarily within the epi- and perineurium, whereas in control sections from patients with non-inflammatory neuropathies, no expression could be depicted. Our findings indicate that ADAM-17 is upregulated during EAN and expressed in nerves of GBS patients and thus may contribute to the pathogenesis of inflammatory demyelination of the PNS. FAU - Kurz, Martin AU - Kurz M AD - Department of Neurology, Research Group for Clinical and Experimental Neuroimmunology, Heinrich-Heine-University, Duesseldorf, Germany. FAU - Pischel, Heidrun AU - Pischel H FAU - Hartung, Hans-Peter AU - Hartung HP FAU - Kieseier, Bernd C AU - Kieseier BC LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Peripher Nerv Syst JT - Journal of the peripheral nervous system : JPNS JID - 9704532 RN - 0 (Antigens, CD) RN - 0 (EDA protein, human) RN - 0 (Ectodysplasins) RN - 0 (Membrane Proteins) RN - 0 (Tumor Necrosis Factors) RN - 9007-81-2 (Freund's Adjuvant) RN - EC 3.4.24.- (ADAM Proteins) RN - EC 3.4.24.86 (ADAM17 Protein) RN - EC 3.4.24.86 (ADAM17 protein, human) RN - EC 3.4.24.86 (Adam17 protein, rat) SB - IM MH - ADAM Proteins/*metabolism MH - ADAM17 Protein MH - Animals MH - Antigens, CD/metabolism MH - Cell Count/methods MH - Disease Models, Animal MH - Ectodysplasins MH - Female MH - Freund's Adjuvant MH - Gene Expression Regulation, Enzymologic/drug effects/*physiology MH - Guillain-Barre Syndrome/metabolism/pathology MH - Humans MH - Immunohistochemistry/methods MH - Membrane Proteins/metabolism MH - Neuritis, Autoimmune, Experimental/chemically induced/complications/*metabolism MH - Rats MH - Rats, Inbred Lew MH - Sciatic Neuropathy/etiology/metabolism MH - Sural Nerve/metabolism MH - Time Factors MH - Tumor Necrosis Factors/metabolism EDAT- 2005/10/14 09:00 MHDA- 2006/02/08 09:00 CRDT- 2005/10/14 09:00 PHST- 2005/10/14 09:00 [pubmed] PHST- 2006/02/08 09:00 [medline] PHST- 2005/10/14 09:00 [entrez] AID - JNS10309 [pii] AID - 10.1111/j.1085-9489.2005.10309.x [doi] PST - ppublish SO - J Peripher Nerv Syst. 2005 Sep;10(3):311-8. doi: 10.1111/j.1085-9489.2005.10309.x.