Bone Marrow-Derived GCA⁺ Immune Cells Drive Alzheimer's Disease Progression.

ABSTRACT: Alzheimer's disease (AD) is an age-related degenerative disease of the central nervous system (CNS), whereas the role of bone marrow immune cells in the pathogenesis of AD remains unclear. Here, the study reveals that compared to matched healthy individuals, AD patients have higher circulating grancalcin (GCA) levels, which negatively correlate with cognitive function. Bone marrow-derived GCA⁺ immune cells, which secret abundant GCA and increase during aging, preferentially invaded the hippocampus and cortex of AD mouse model in a C-C Motif Chemokine Receptor 10 (CCR10)-dependent manner. Transplanting GCA⁺ immune cells or direct stereotaxic injection of recombinant GCA protein intensified amyloid plaque load and aggravated cognitive and memory impairments. In contrast

SUBMITTER: Zhou R 

PROVIDER: S-EPMC10754099 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature