IGF-1 splice-variant peptide (mechano growth factor; research)
MGF / PEG-MGF
IGF-1Ec-related peptide studied for local muscle-repair signalling; PEGylation prolongs circulating time in research constructs.
Primary Mechanism of Action
Clinical / Scientific
Mechano growth factor refers to an IGF-1 splice isoform induced by stretch/damage. Synthetic MGF/PEG-MGF peptides are used in research to probe local IGF-related repair. PEGylation slows clearance. Not a licensed muscle drug.
Pathway Targets
IGF-related repair signalling
Scientific explanation
Experimental autocrine muscle-repair pathways.
Pathway Convergence
Clinical / Scientific
Target → pathway → downstream effect → biological consequence. This is a mechanistic map, not a treatment claim.
Receptor to physiology
Target to downstream effect: IGF-related repair signalling
Mechanistically Relevant Repurposed & Adjunctive Applications
Research peptide context
PreclinicalMechanistic rationale
Catalogued as a research peptide. Mechanistic statements below describe known or pathway biology and do not establish a licensed therapeutic indication.
Mechanistic Application Matrix
| Biological Target | Mechanism | Potential Relevance | Evidence Level |
|---|---|---|---|
| IGF splice signalling | Experimental agonism | Muscle repair models | Preclinical |
In Plain Language
MGF is a research version of a stretch-induced IGF-1 variant. PEG-MGF is the same idea with a PEG tail so it lasts longer in the blood in experiments.
Mechanistic information is provided for scientific and educational purposes. Discussion of biological pathways or investigational applications does not establish clinical efficacy or constitute individualized medical advice.