Practical Geriatrics ›› 2025, Vol. 39 ›› Issue (2): 197-201.doi: 10.3969/j.issn.1003-9198.2025.02.020

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Research progress of calprotectin S100A8/S100A9 in Alzheimer's disease

WU Jinli, YANG Xiaojuan   

  1. The First Clinical Medical College, Shanxi Medical University, Taiyuan 030000, China(WU Jinli); Department of Geriatrics, the First Hospital of Shanxi Medical University, Taiyuan 030000, China(YANG Xiaojuan)
  • Received:2024-04-08 Online:2025-02-20 Published:2025-03-03
  • Contact: YANG Xiaojuan, Email: yxj2011bs@126.com

Abstract: Alzheimer's disease(AD) is characterized by progressive memory loss. Based on the emerging theory of microbe-gut-brain axis, the changes in intestinal flora might activate the intestinal inflammation. Calprotectin, as a marker of intestinal inflammation, is a key substance in the brain-gut axis of AD. Its subunits S100A8 and S100A9 are also closely related to the Aβ theory and neuroinflammation theory in AD, respectively. Therefore, this article reviews the main functions of S100A8/S100A9 protein and its new research progress in AD-related pathogenesis, risk factors, prevention and treatment, in order to provide new research directions for the treatment of AD.

Key words: Alzheimer's disease, calprotectin, S100A9, S100A8

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