Regulation of Muscle Mass by Follistatin and Activins
Lee SJ, McPherron AC
Proceedings of the National Academy of Sciences · Vol. 98(16) · pp. 9306–9311 · 2001
Landmark study demonstrating that follistatin overexpression produces dramatic muscle hypertrophy by inhibiting myostatin and activins. Establishes the follistatin-myostatin axis as a master regulator of muscle mass and identifies follistatin as a therapeutic target for muscle wasting diseases.
Citation
Key Findings
Follistatin overexpression produces 2–3 fold increase in muscle mass in mice
Effect mediated by inhibition of myostatin (GDF-8) and activin signaling
Muscle hypertrophy occurs via both fiber hypertrophy and hyperplasia
Follistatin-myostatin double knockout shows additive muscle mass increase
Therapeutic potential for muscular dystrophy, sarcopenia, and cachexia
Methodology
Transgenic mouse models with follistatin overexpression and myostatin knockout. Muscle mass quantification, fiber typing, and signaling pathway analysis.
Limitations
Transgenic overexpression model; pharmacological follistatin administration has more modest effects. Human muscle biology differs from mouse in important ways.
Protocols Using This Research
Tags
Educational use only. Research summaries are provided for informational purposes. Always consult the original publication and a qualified healthcare provider before making clinical decisions.
Related Research
Prolonged Stimulation of Growth Hormone and Insulin-Like Growth Factor 1 Secreti…
2006 · Strong Evidence
Ipamorelin, the First Selective Growth Hormone Secretagogue
1998 · Strong Evidence
Ipamorelin, the First Selective Growth Hormone Secretagogue
1998 · Strong Evidence
Prolonged Stimulation of Growth Hormone (GH) and Insulin-Like Growth Factor I Se…
2006 · Strong Evidence
Build a protocol around this research
Our AI Advisor incorporates the latest research to build a personalized peptide protocol for your goals.
Start Assessment