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Trends Endocrinol Metab. 2012 Sep;23(9):459-66. doi: 10.1016/j.tem.2012.06.006. Epub 2012 Jul 18.

Transcriptional integration of mitochondrial biogenesis.

Author information

1
Department of Cell and Molecular Biology, Northwestern University Medical School, Chicago, IL 60611, USA.

Abstract

Gene regulatory factors encoded by the nuclear genome are essential for mitochondrial biogenesis and function. Some of these factors act exclusively within the mitochondria to regulate the control of mitochondrial transcription, translation, and other functions. Others govern the expression of nuclear genes required for mitochondrial metabolism and organelle biogenesis. The peroxisome proliferator-activated receptor γ coactivator-1 (PGC-1) family of transcriptional coactivators play a major role in transducing and integrating physiological signals governing metabolism, differentiation, and cell growth to the transcriptional machinery controlling mitochondrial functional capacity. Thus, the PGC-1 coactivators serve as a central component of the transcriptional regulatory circuitry that coordinately controls the energy-generating functions of mitochondria in accordance with the metabolic demands imposed by changing physiological conditions, senescence, and disease.

PMID:
22817841
PMCID:
PMC3580164
DOI:
10.1016/j.tem.2012.06.006
[Indexed for MEDLINE]
Free PMC Article

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