Neuronal clusterin expression is associated with cognitive protection in amyotrophic lateral sclerosis.

Neuropathology and Applied Neurobiology
Jenna M GregoryC Smith

Abstract

Clusterin is a topologically dynamic chaperone protein with the ability to participate in both intra- and extacellular proteostasis. Clusterin has been shown to be upregulated in the spinal cord of patients with amyotrophic lateral sclerosis (ALS) and has been shown to protect against TDP-43 protein misfolding in animal and cell models. Previous studies have demonstrated an association between the pathological burden of TDP-43 misfolding and cognitive deficits in ALS, demonstrating high specificity, but correspondingly low sensitivity owing to a subset of individuals with no evidence of cognitive deficits despite a high burden of TDP-43 pathology, called mismatch cases. Hypothesizing that differences in the ability to cope with protein misfolding in these cases may be due to differences in expression of protective mechanisms such as clusterin expression, we assessed the spatial expression of clusterin and another chaperone protein, HspB8, in post mortem brain tissue of mismatch cases. We employed a modified in situ hybridization technique called BaseScope, with single cell, single transcript resolution. Mismatch cases demonstrated differential spatial expression of clusterin, with a predominantly neuronal pattern, compared to c...Continue Reading

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Citations

Sep 14, 2019·Journal of Neurology, Neurosurgery, and Psychiatry·Jenna M GregorySharon Abrahams
Nov 17, 2020·Frontiers in Aging Neuroscience·Kriti ChaplotIris Lindberg

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Software Mentioned

BaseScope

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Amyloid Lateral Sclerosis

Amyotrophic Lateral Sclerosis (ALS) is a progressive nervous system disease associated with the death of neurons that control voluntary muscles. Discover the latest research on ALS here.

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