Cantó C, Auwerx J
Nestlé Institute of Health Sciences, CH-1015, Lausanne, Switzerland.
Cold Spring Harb Symp Quant Biol. 2011;76:291-8. doi: 10.1101/sqb.2012.76.010439. Epub 2012 Feb 17.
The ability of NAD(+) to act as a metabolic cofactor and as a rate-limiting cosubstrate for many enzymes, particularly the sirtuins, has led to the identification of a pivotal role of NAD(+) levels in the control of whole-body metabolic homeostasis. Bioavailability and compartmentalization of NAD(+) have become highly relevant issues that we need to understand in order to elucidate how NAD(+) acts both as a readout of the metabolic milieu and as an effector triggering appropriate cellular adaptations.
NAD⁺作为代谢辅助因子以及许多酶(特别是沉默调节蛋白)的限速共底物的能力,使得人们认识到NAD⁺水平在全身代谢稳态控制中起着关键作用。NAD⁺的生物利用度和区室化已成为高度相关的问题,为了阐明NAD⁺如何既作为代谢环境的一种指标,又作为触发适当细胞适应性的效应物,我们需要了解这些问题。