Related Experiment Video
Updated: Jun 12, 2026

Imaging the Intracellular Trafficking of APP with Photoactivatable GFP
Published on: October 17, 2015
Role of selenoprotein P in Alzheimer's disease
Andrea S Takemoto1, Marla J Berry, Frederick P Bellinger
1Cell and Molecular Biology Department, John A. Burns School of Medicine, University of Hawaii at Manoa, USA.
Introduction:
Selenoprotein P (SelP) plays a critical role in neuronal survival and is associated with Alzheimer's pathology. We sought to determine a potential neuroprotective role for SelP in Alzheimer's disease.
Methods:
We utilized RNAi to reduce SelP expression in neuronal N2A cells, and determined cell viability with flow cytometry. We subsequently measured neurotoxicity from exposure of aggregated amyloid beta (Abeta) peptides to SelP-knockdown and control N2A cells.
Results:
We found that knockdown of SelP using siRNA in N2A cells reduced viability and increased apoptotic cell death. Additionally, knockdown of SelP using siRNA in N2A cells resulted in increased AB toxicity.
Conclusions:
Our findings demonstrate that SelP protects neuronal cells from Abeta-induced toxicity, suggesting a neuroprotective role for SelP in preventing neurodegenerative disorders.
Related Concept Videos
Alzheimer Disease l: Introduction
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
Alzheimer Disease ll: Pathophysiology
Alzheimer's Disease: Treatment
Parkinson Disease ll: Pathophysiology
Dementia l: Introduction
