Research record
Overview
Cmpound name: PEG-MGF
Alteronative names: PEGylated Mechano Growth Factor
Compound classification: Synthetic peptide; PEGylated IGF-1 splice variant analog
Brief factual description:
PEG-MGF is a polyethylene glycol (PEG)–modified analog of mechano growth factor (MGF), a splice variant of insulin-like growth factor-1 (IGF-1Ec). PEGylation is used to extend the peptide’s half-life and stability, enabling prolonged biological activity compared to unmodified MGF.
Mechanism of Action
Primary biological targets: Muscle satellite cells and local IGF-1 signaling pathways
Affected systems: Musculoskeletal, cellular regeneration pathways
Receptor selectivity:
Acts primarily through IGF-1–related signaling mechanisms, with local paracrine effects
Downstream signaling effects:
Activation of satellite cell proliferation
Initiation of muscle repair and regeneration signaling
Reduced emphasis on systemic hypertrophic signaling compared to IGF-1 LR3
