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Mitochondrial biogenesis: Which part of “NO” do we understand?

✍ Scribed by Scot C. Leary; Eric. A. Shoubridge


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
105 KB
Volume
25
Category
Article
ISSN
0265-9247

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

A recent paper by Nisoli et al.1 provides the first evidence that elevated levels of nitric oxide (NO) stimulate mitochondrial biogenesis in a number of cell lines via a soluble guanylate‐cyclase‐dependent signaling pathway that activates PGC1α (peroxisome proliferator‐activated receptor γ coactivator‐1α), a master regulator of mitochondrial content. These results raise intriguing possibilities for a role of NO in modulating mitochondrial content in response to physiological stimuli such as exercise or cold exposure. However, whether this signaling cascade represents a widespread mechanism by which mammalian tissues regulate mitochondrial content, and how it might integrate with other pathways that control PGC1α expression, remain unclear. BioEssays 25:538–541, 2003. © 2003 Wiley Periodicals, Inc.