FST-344

Follistatin-344 (FST-344) is a recombinant protein that has become a prominent subject of muscle biology and regenerative research due to its interactions with myostatin and other members of the transforming growth factor-beta (TGF-β) signaling family. Researchers study FST-344 to better understand the molecular pathways involved in skeletal muscle development, muscle hypertrophy, tissue remodeling, and body composition regulation. Its role in modulating these signaling networks has made it a widely investigated protein in preclinical laboratory studies exploring muscle physiology, regenerative biology, and growth factor regulation under controlled experimental conditions.