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Cathepsin B modulates microglial migration and phagocytosis of amyloid β in Alzheimer's disease through PI3K-Akt signaling.

Neuropsychopharmacology

September 2024

Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China.

Article Synopsis
  • The FDA approved lecanemab, an anti-amyloid β monoclonal antibody, to treat early-stage Alzheimer's disease, highlighting the significance of Aβ clearance in therapy.
  • Research focused on cathepsin B (CatB), a protein that appears crucial for microglia to effectively clear Aβ from the brain, which is essential for maintaining cognitive function.
  • Findings show that lack of CatB worsens cognitive decline in mice and that increased Aβ promotes CatB expression in microglia, hinting at a link between CatB activity and inflammation as well as Aβ clearance mechanisms.
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