Journal
BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS
Volume 1830, Issue 8, Pages 4137-4146Publisher
ELSEVIER
DOI: 10.1016/j.bbagen.2013.04.006
Keywords
Antioxidant response; Mitochondrial biogenesis; Transcriptional regulation; Patho-physiological conditions
Categories
Funding
- MIUR
- AIRC [IG10636]
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Background: The transcription factor nuclear factor-erythroid-derived 2-like 2 (official symbol: NFE2L2, alias: Nrf2) is a master regulator of antioxidant defense system, which makes it an attractive target for manipulations that aim to increase cellular resistance to oxidative stress. Nuclear respiratory factor 2 or GA binding protein transcription factor alpha (official symbol: GABPA, alias: NRF2) functions as a transcription factor that activates the expression of some key metabolic genes regulating cellular growth and nuclear genes required for mitochondrial respiration as well as mitochondrial DNA transcription and replication. Scope of review: Despite the evident structural and functional differences, confusion has occurred in bibliographic databases due to the shared symbol NRF2 for these transcription factors. Such confusion has worsened after the discovery that the transcriptional co-activator peroxisome proliferator activated receptor gamma co-activator 1 alpha (PGC-1 alpha) could control the signaling pathway of both NFE2L2 and GABPA through distinct molecular mechanisms. This review will summarize the implications of NFE2L2 and GABPA in various human pathophysiological conditions and how PGC-1 alpha can regulate their different signaling axis. Major conclusions: This review underlines the overlapping functions between PGC-1 alpha, NFE2L2 and GABPA, which alteration could induce the development of human pathological states. General significance: The comprehension of molecular mechanisms that modulate the intersection between these proteins will be important to identify new signaling axis involved in lifespan extension as well as novel targets for therapeutic interventions. (c) 2013 Elsevier B.V. All rights reserved.
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