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2008:
Deng H; Yang X; Jin T; Wu J; Hu L-S; Chang M; Sun X-J; Adem A; Winblad B; Zhu J
The role of IL-12 and TNF-alpha in AIDP and AMAN.
European journal of neurology : the official journal of the European Federation of Neurological Societies 2008;
15(
10):.
BACKGROUND: Acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and acute motor axonal neuropathy (AMAN) have been described as two major subtypes of Guillain-Barré syndrome (GBS); however, the possible difference of their immune-inflammatory pathogenesis remains unclear. METHODS: In this study, by using FACS and enzyme-linked immunosorbent assays analyses, the role of Th1 cytokines tumour necrosis factor-alpha (TNF-alpha), interleukin-12 (IL-12) and their receptors on peripheral blood mononuclear cells (PBMCs) and in serum concentrations were investigated in AIDP and AMAN. RESULTS: The results showed enhanced IL-12, IL-12R1 in AIDP and TNF-alpha in AMAN during the acute phase, as well as increased TNF-alpha and TNFR1 during the plateau phase of AIDP. Intravenous high dose immunoglobulin decreased IL-12R1 expression on cells in AIDP, but increased TNF-alpha and TNFR2 in AMAN. DISCUSSION: Our data suggest that IL-12 promotes disease development in AIDP and in contrast to previously inflammatory assumptions, TNF-alpha may play double roles in GBS. The anti-inflammatory role of TNF-alpha realized through TNFR2 in AMAN is possibly a therapeutic mechanism in the IVIg treatment of AMAN.
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