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Protective effect of recombinant soluble neprilysin against β-amyloid induced neurotoxicity.

Abstract：

:A few decades ago, researchers found emerging evidence showing that a number of sequential events lead to the pathological cascade of Alzheimer's disease (AD) which is caused by the accumulation of amyloid beta (Aβ), a physiological peptide, in the brain. Therefore, regulation of Aβ represents a crucial treatment approach for AD. Neprilysin (NEP), a membrane metallo-endopeptidase, is a rate-limiting peptidase which is known to degrade the amyloid beta peptide. This study investigated soluble NEP (sNEP) produced by recombinant mammalian cells stably transfected with a non-viral NEP expression vector to demonstrate its protective effect against Aβ peptides in neuronal cells in vitro. Stably transfected HEK 293 cells were used to purify the soluble protein. sNEP and Aβ peptide co-treated hippocampal cells had a decreased level of Aβ peptides shown by an increase in cell viability and decrease in apoptosis measured by the CCK-8 and relative caspase-3 activity ratio assays, respectively. This study shows that stably transfected mammalian cells can produce soluble NEP proteins which could be used to protect against Aβ accumulation in AD and subsequently neuronal toxicity. Additionally, approaches using protein therapy for potential targets could change the pathological cascade of Alzheimer's disease.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Oh JH,Choi S,Shin J,Park JS

doi

10.1016/j.bbrc.2016.06.103

subject

Has Abstract

pub_date

2016-09-02 00:00:00

pages

614-619

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(16)31021-X

journal_volume

477

pub_type

杂志文章

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