Journal
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
Volume 1828, Issue 12, Pages 2898-2907Publisher
ELSEVIER
DOI: 10.1016/j.bbamem.2013.06.005
Keywords
gamma-Secretase inhibitor; gamma-Secretase modulator; Cancer; Alzheimer's disease
Categories
Funding
- [P01 AG20206]
- [P01 AG025531]
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gamma-Secretase is a fascinating, multi-subunit, intramembrane cleaving protease that is now being considered as a therapeutic target for a number of diseases. Potent, orally bioavailable gamma-Secretase inhibitors (GSIs) have been developed and tested in humans with Alzheimer's disease (AD) and cancer. Preclinical studies also suggest the therapeutic potential for GSIs in other disease conditions. However, due to inherent mechanism based-toxicity of non-selective inhibition of gamma-Secretase, clinical development of GSIs will require empirical testing with careful evaluation of benefit versus risk. In addition to GSIs, compounds referred to as gamma-Secretase modulators (GSMs) remain in development as AD therapeutics. GSMs do not inhibit gamma-Secretase, but modulate gamma-Secretase processivity and thereby shift the profile of the secreted amyloid beta peptides (A beta) peptides produced. Although GSMs are thought to have an inherently safe mechanism of action, their effects on substrates other than the amyloid beta protein precursor (APP) have not been extensively investigated. Herein, we will review the current state of development of GSIs and GSMs and explore pertinent biological and pharmacological questions pertaining to the use of these agents for select indications. This article is part of a Special Issue entitled: Intramembrane Proteases. (C) 2013 Elsevier B.V. All rights reserved.
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