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In Vitro Investigation of the Effects of the Hyaluronan-Rich Extracellular Matrix on Neural Crest Cell Migration
Published on: February 10, 2023
RhoC involved in the migration of neural stem/progenitor cells
Can Zhang1, Xuemei Ge, Kenghoe Lok
1School of Pharmacy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, China.
Abstract:
Alzheimer's disease (AD) is characterized by deposition of beta-amyloid peptides (Aβ) and progressive loss of neurons. Neural stem/progenitor cells (NSPCs) can proliferate and produce immature neurons even in the brain of AD patients. However, Aβ42 significantly decreased the expression of RhoC in NSPCs during the co-incubation (P < 0.01). Treating with RhoC siRNA prevented membrane from protrusion and led to a significant reduction in cell migration in responses to SDF-1. Compared with wild-type mice, the numbers of RhoC-immunoreactive cells in hippocampus and cortex were significantly down-regulated in APP/PS1 mice aged 9 months. The results suggest that Aβ42 down-regulates the expression of RhoC in NSPCs in vitro and in vivo; down-regulated RhoC expression results in decreased migration of NSPCs.
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