Dehydroepiandrosterone reduces expression and activity of BACE in NT2 neurons exposed to oxidative stress.

Abstract:

:Recently, we showed that oxidative stress activates the expression and activity of the beta-site AbetaPP-cleaving enzyme (BACE), an aspartyl protease responsible for the beta-secretase cleavage of AbetaPP. The identification of compounds able to prevent the induction of this event is an important goal of therapeutic strategies for Alzheimer's disease (AD). Dehydroepiandrosterone (DHEA) is an adrenal steroid that improves a variety of functions in the central nervous system. Moreover, a series of evidence suggests that DHEA displays antioxidant properties in different experimental models. In the present paper we show that pretreatment with DHEA is able to rescue the increase of mRNA expression, protein levels, and activity of BACE, produced by oxidative stress in NT2 neurons. BACE, being the enzyme that initiates the production of Abeta, is a drug target for AD. Our results imply that DHEA administration may slow down the AD pathological process, lowering Abeta accumulation.

journal_name

Neurobiol Dis

journal_title

Neurobiology of disease

authors

Tamagno E,Guglielmotto M,Bardini P,Santoro G,Davit A,Di Simone D,Danni O,Tabaton M

doi

10.1016/s0969-9961(03)00131-1

keywords:

subject

Has Abstract

pub_date

2003-11-01 00:00:00

pages

291-301

issue

2

eissn

0969-9961

issn

1095-953X

pii

S0969996103001311

journal_volume

14

pub_type

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