Adiponectin Attenuates Streptozotocin-Induced Tau Hyperphosphorylation and Cognitive Deficits by Rescuing PI3K/Akt/GSK-3 beta Pathway

作者:Xu, Zhi-Peng; Gan, Guo-Sheng; Liu, Yu-Min; Xiao, Jin-Song; Liu, Han-Xing; Mei, Bin; Zhang, Jun-Jian*
来源:Neurochemical Research, 2018, 43(2): 316-323.
DOI:10.1007/s11064-017-2426-2

摘要

Clinical studies have demonstrated that decreased adiponectin is associated with the development of Type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD). We focused on determining the neuroprotective effect offered by adiponectin against streptozotocin-induced brain damage in ICV-STZ rat model. We found that adiponectin supplements significantly restored the cognitive deficits in ICV-STZ rat model including shorter escape latency, more crossing times and increased time spent in the target quadrant. Adiponectin supplements also increased number of dendritic branches and mushroom percentage. In addition, adiponectin supplements attenuated tau hyperphosphorylation at multiple AD-related sites through activation of protein Ser9-phosphorylated glycogen synthase kinase-3 beta (Ser9-GSK-3 beta) with increased the Akt and PI3K activity. Our data suggest that adiponectin supplements have neuroprotective effects on the ICV-STZ rat model, which may be mediated by the activation of the PI3K/Akt/GSK-3 beta signaling pathway.

  • 出版日期2018-2
  • 单位中国人民解放军广州军区武汉总医院; 武汉大学