Making muscle or mitochondria by selective splicing of PGC-1α.

Millay, Douglas P; Olson, Eric N · Cell Metab · 2013

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Abstract

Endurance training induces the transcriptional coactivator PGC-1α in skeletal muscle, promoting mitochondrial biogenesis and skeletal muscle remodeling. In a recent issue of Cell, Ruas et al. (2012) show that resistance training regulates the splicing of a novel isoform of PGC-1α (PGC-1α4), which is sufficient to stimulate skeletal muscle hypertrophy.