scAAV9-VEGF-165 inhibits neuroinflammatory responses and invasion of macrophages into the peripheral nervous system of ALS transgenic mice.
Brain research bulletin(2018)
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder that leads to paralysis and death within 3-5 years. Although the vast majority of studies have focused on vulnerable neurons, growing evidence has shown that non-neuronal cells contribute to the pathogenesis and disease progression. Here, we showed that intrathecal injection of scAAV9-VEGF at 60 days of age significantly reduced the number of microglia and inhibited the neuroinflammatory response in the CNS. Meanwhile, we found that administration of VEGF inhibited the invasion of macrophages into the PNS, including ventral nerve roots, sciatic nerves and muscles. Overall, our study indicated the anti-inflammation effect of VEGF in the CNS and PNS of ALS mice when delivered by intrathecal injection.
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