High serum levels of BMP-2 correlate with BMP-4 and BMP-5 levels and induce reduced neuronal phenotype in patients with relapsing-remitting multiple sclerosis.
Journal of neuroimmunology(2017)
摘要
Blockage of bone morphogenetic protein (BMP) signaling is required for differentiation of neurons and oligodendrocytes from neural stem cells (NSCs). Sera of untreated relapsing-remitting multiple sclerosis (RR-MS) patients expressed significantly higher levels of BMP-2 compared to sera of healthy controls. BMP-2 levels correlated with BMP-4 and -5 levels only in sera of untreated MS patients. Furthermore, sera of untreated patients inhibited the neuronal differentiation of RA-treated P19 cells, which was associated with induction of phospho-SMAD signaling pathway. These results suggest that BMP-2 sera levels may play a role in the failure of remyelination and neuro-regeneration in RR-MS.
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