NRF2/ARE pathway negatively regulates BACE1 expression and ameliorates cognitive deficits in mouse Alzheimer’s models Academic Article uri icon

abstract

  • BACE1 is the rate-limiting enzyme for amyloid-β peptides (Aβ) generation, a key event in the pathogenesis of Alzheimer’s disease (AD). By an unknown mechanism, levels of BACE1 and a BACE1 mRNA-stabilizing antisense RNA (BACE1-AS) are elevated in the brains of AD patients, implicating that dysregulation of BACE1 expression plays an important role in AD pathogenesis. We found that nuclear factor erythroid-derived 2-related factor 2 (NRF2/NFE2L2) represses the expression of BACE1 and BACE1-AS through binding to antioxidant response elements (AREs) in their promoters of mouse and human. NRF2-mediated inhibition of BACE1 and BACE1-AS expression is independent of redox regulation. NRF2 activation decreases production of BACE1 and BACE1-AS transcripts and Aβ production and ameliorates cognitive deficits in animal models of AD. Depletion of NRF2 increases BACE1 and BACE1-AS expression and Aβ production and worsens cognitive deficits. Our findings suggest that activation of NRF2 can prevent a key early pathogenic process in AD.

authors

  • Bahn, G
  • Park, JS
  • Yun, UJ
  • Lee, YJ
  • Choi, Y
  • Park, JS
  • Baek, SH
  • Choi, BY
  • Cho, YS
  • Kim, HK
  • Han, J
  • Sul, JH
  • Baik, SH
  • Lim, J
  • Wakabayashi, N
  • Bae, SH
  • Han, JW
  • Arumugam, Thiruma V
  • Mattson, MP
  • Jo, DG

publication date

  • 2019