期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 66, 期 9, 页码 1534-1555出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-009-8435-9
关键词
Presenilin; gamma-secretase complexes; regulated intramembrane proteolysis; signal transduction; Alzheimer's disease
资金
- Science Foundation Ireland [02/IN1/B218]
Inhibiting the production of amyloid-beta by antagonising gamma-secretase activity is currently being pursued as a therapeutic strategy for Alzheimer's disease (AD). However, early pre-clinical studies have demonstrated that disruption of presenilin-dependent gamma-secretase alters many presenilin-dependent processes, leading to early lethality in several AD model organisms. Subsequently, transgenic animal studies have highlighted several gross developmental side effects arising from presenilin deficiency. Partial knockdown or tissue-specific knockout of presenilins has identified the skin, vascular and immune systems as very sensitive to loss of presenilin functions. A more appreciative understanding of presenilin biology is therefore demanded if gamma-secretase is to be pursued as a therapeutic target. Herein we review the current understanding of gamma-secretase complexes; their regulation, abundance of interacting partners and diversity of substrates. We also discuss regulation of the gamma-secretase complexes, with an emphasis on the functional role of presenilins in cell biology.
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