{"product_id":"mgf-mechano-growth-factor","title":"MGF (Mechano Growth Factor)","description":"\u003cdiv class=\"pb-product-desc\"\u003e\n\u003ch2\u003eMGF (Mechano Growth Factor) — Splice Variant of IGF-1 for Muscle Biology and Regeneration Research\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMGF (Mechano Growth Factor)\u003c\/strong\u003e is a splice variant of the Insulin-like Growth Factor 1 (IGF-1) gene, specifically the IGF-1Ec isoform in humans (IGF-1Eb in rodents). Unlike the systemic IGF-1Ea isoform that is primarily hepatic in origin, MGF is produced locally within mechanically stressed skeletal muscle tissue and is characterized by a unique 24-amino acid C-terminal E-domain extension. First described by Goldspink et al. at University College London, \u003cstrong\u003eMGF\u003c\/strong\u003e has been shown to activate satellite cells (muscle stem cells) and initiate muscle repair cascades, making it an indispensable tool for researchers studying exercise physiology, muscle regeneration, and mechano-transduction pathways.\u003c\/p\u003e\n\n\u003ch3\u003eMechanism of Action\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMGF\u003c\/strong\u003e exerts its biological effects primarily through its unique E-domain peptide, which is distinct from the mature IGF-1 receptor-binding domain. Research published in \u003cem\u003eJournal of Physiology\u003c\/em\u003e (2003) demonstrated that the MGF E-domain activates satellite cells by stimulating their proliferation without promoting differentiation — a critical distinction from mature IGF-1, which drives terminal differentiation. This activation involves upregulation of MyoD and Myf5 transcription factors while suppressing myogenin expression. Additionally, MGF has been shown to activate the Akt\/mTOR pathway in an IGF-1R-independent manner, suggesting a distinct signaling mechanism through a putative E-domain receptor.\u003c\/p\u003e\n\n\u003ch3\u003eKey Research Areas\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSatellite Cell Activation:\u003c\/strong\u003e In-vitro studies using primary myoblast cultures have demonstrated that \u003cstrong\u003eMGF\u003c\/strong\u003e promotes satellite cell proliferation at significantly lower concentrations than mature IGF-1, with the E-domain peptide alone sufficient to drive this mitogenic effect, enabling researchers to dissect the specific contribution of mechano-sensitive IGF-1 splicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuscle Damage and Repair:\u003c\/strong\u003e Preclinical models of exercise-induced and toxin-induced muscle damage have shown that MGF expression peaks within 24 hours of injury, preceding IGF-1Ea upregulation. Exogenous MGF administration has been observed to accelerate the regenerative timeline in cardiotoxin-injured murine muscle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechano-Transduction:\u003c\/strong\u003e Researchers have used MGF as a marker and effector to study how mechanical loading signals are transduced into molecular repair responses, with evidence that MGF expression is regulated by the calcineurin\/NFAT and p38 MAPK signaling cascades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge-Related Muscle Decline:\u003c\/strong\u003e Studies have documented diminished MGF splicing efficiency in aged muscle tissue, suggesting impaired mechano-sensitive IGF-1 processing may contribute to sarcopenia, providing a model system for studying age-related muscle wasting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Researchers Choose Peptides BioLab\u003c\/h3\u003e\n\u003cp\u003eEvery batch of \u003cstrong\u003eMGF\u003c\/strong\u003e supplied by Peptides BioLab undergoes rigorous HPLC and mass spectrometry analysis, ensuring ≥98% purity verified by an independent Certificate of Analysis (CoA). Our \u003ca href=\"\/products\/mgf-mechano-growth-factor\"\u003eMGF\u003c\/a\u003e is supplied as a lyophilized powder for maximum stability and shelf life, shipped worldwide from our state-of-the-art facilities in temperature-controlled packaging.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Research Peptides\u003c\/h3\u003e\n\u003cp\u003eResearchers studying IGF-1 signaling and muscle biology may also find these compounds relevant: \u003ca href=\"\/products\/peg-mgf\"\u003ePEG-MGF\u003c\/a\u003e, \u003ca href=\"\/products\/igf1-lr3\"\u003eIGF-1 LR3\u003c\/a\u003e, and \u003ca href=\"\/products\/follistatin-344\"\u003eFollistatin 344\u003c\/a\u003e. For a complete overview, browse our \u003ca href=\"\/collections\/muscle-building\"\u003eMuscle Research\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFor research purposes only — Not for human consumption. All products are intended solely for in-vitro research and laboratory use.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Peptides BioLab","offers":[{"title":"Default Title","offer_id":61420647252298,"sku":"PBL-MGF-2MG","price":29.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/9429\/6906\/files\/peptides-biolab-mgf-mechano-growth-factor-2mg-research-grade.webp?v=1774393550","url":"https:\/\/peptides-biolab.com\/products\/mgf-mechano-growth-factor","provider":"Peptides BioLab","version":"1.0","type":"link"}