PEG-MGF is strictly for laboratory research and is commonly employed in the following investigational areas:

Musculoskeletal Regeneration and Hypertrophy

Research models utilize PEG-MGF to evaluate its profound impact on tissue repair. Investigations focus on the peptide’s ability to activate human muscle progenitor cells and increase their fusion potential. Additional studies assess its capacity to enhance articular hyaline cartilage regeneration when functionalized in scaffolds and to promote the proliferation, differentiation, and mineralization of osteoblast models for bone defect healing.

Stem Cell Migration and Differentiation

Experimental protocols employ this pegylated peptide to characterize its influence on stem cell dynamics. Studies assess how the MGF E-domain regulates the targeted migration and differentiation of bone marrow mesenchymal stem cells to sites of injury.

Cardiac and Neuroprotective Modeling

In cardiovascular and neurological research, PEG-MGF is used to study cellular protection following severe ischemic events. Researchers evaluate its efficacy in improving cardiac function and preserving myocardium following induced myocardial infarction, as well as its strong autonomous neuroprotective effects in models of brain ischemia.

Pathway / Mechanistic Context

The primary mechanism of action for PEG-MGF in research settings involves its function as a localized tissue repair factor, acting independently of the mature IGF-1 receptor pathway.

• Progenitor Cell Activation: Stimulates the initial proliferation and expansion of local dormant stem cell pools (such as muscle satellite cells or mesenchymal stem cells) in response to mechanical overload or tissue damage.
• Cell Fusion and Differentiation: Shifts local cellular dynamics to increase fusion potential and drive the terminal differentiation required for structural tissue regeneration.
• Anti-Apoptotic and Protective Signaling: Mitigates cellular death pathways during ischemic or hypoxic stress, preserving functional tissue mass in both cardiac and neural networks.

Preclinical Research Summary

Published preclinical literature documents investigations of MGF and its pegylated derivatives across diverse experimental models focusing on tissue repair and cellular protection.

• In skeletal muscle models, the MGF-E peptide robustly activated human muscle progenitor cells and significantly increased their fusion potential across different age cohorts.
• Orthopedic research demonstrated that MGF peptides promote the proliferation, differentiation, and mineralization of osteoblasts (MC3T3-E1 cells) to accelerate bone defect healing, and enhance hyaline cartilage regeneration in rabbit models.
• Studies utilizing bone marrow mesenchymal stem cells confirmed that the MGF E-peptide acts as a potent regulator of targeted cell migration and differentiation.
• Investigations into ischemic injuries revealed strong autonomous neuroprotective effects in brain ischemia models and significant improvements in cardiac function following localized delivery of the MGF E-domain post-myocardial infarction.

Form & Analytical Testing

• Solid-Phase Peptide Synthesis and PEGylation
• Lyophilization
• Identity Verification: Mass Spectrometry (MS) to confirm molecular weight and identity.
• Purity Verification: High-Performance Liquid Chromatography (HPLC) is performed to ensure the product meets the purity standard.

Referenced Citations

References are provided for informational purposes only and are not clinical claims.

• Kandalla, P., Goldspink, G., Butler-Browne, G., & Mouly, V. (2011). Mechano Growth Factor E peptide (MGF-E), derived from an isoform of IGF-1, activates human muscle progenitor cells and induces an increase in their fusion potential at different ages. Mechanisms of Ageing and Development, 132, 154-162. https://doi.org/10.1016/j.mad.2011.02.007.
• Wei, W., Liu, S., Song, J., Feng, T., Yang, R., Cheng, Y., Li, H., & Hao, L. (2020). MGF-19E peptide promoted proliferation, differentiation and mineralization of MC3T3-E1 cell and promoted bone defect healing.. Gene, 144703 . https://doi.org/10.1016/j.gene.2020.144703.
• Luo, Z., Jiang, L., Xu, Y., Li, H., Xu, W., Wu, S., Wang, Y., Tang, Z., Lv, Y., & Yang, L. (2015). Mechano growth factor (MGF) and transforming growth factor (TGF)-β3 functionalized silk scaffolds enhance articular hyaline cartilage regeneration in rabbit model.. Biomaterials, 52, 463-75 . https://doi.org/10.1016/j.biomaterials.2015.01.001.
• Cui, H., Yi, Q., Feng, J., Yang, L., & Tang, L. (2014). Mechano growth factor E peptide regulates migration and differentiation of bone marrow mesenchymal stem cells.. Journal of molecular endocrinology, 52 2, 111-20 . https://doi.org/10.1530/JME-13-0157.
• Dłużniewska, J., Sarnowska, A., Beręsewicz, M., Johnson, I., Srai, S., Ramesh, B., Goldspink, G., Górecki, D., & Zabłocka, B. (2005). A strong neuroprotective effect of the autonomous C‐terminal peptide of IGF‐1 Ec (MGF) in brain ischemia. The FASEB Journal, 19. https://doi.org/10.1096/fj.05-3786fje.
• Peña, J., Pinney, J., Ayala, P., Desai, T., & Goldspink, P. (2015). Localized delivery of mechano-growth factor E-domain peptide via polymeric microstructures improves cardiac function following myocardial infarction.. Biomaterials, 46, 26-34 . https://doi.org/10.1016/j.biomaterials.2014.12.050.

• Stable at room temperature for up to 90 days. For long-term storage, keep at -20°C (-4°F) or colder.
• Once mixed with a solvent (e.g., bacteriostatic water), the solution must be stored at 4 °C (39°F) and utilized within 30 days. Avoid repeated freeze-thaw cycles, as this degrades the peptide structure.

RESEARCH USE ONLY

This product is intended strictly for laboratory research use only. It is not for human or veterinary use. It is not intended for diagnosis, treatment, cure, or prevention of any disease. All purchases are subject to our Terms of Service and Purity Guarantee.

No COAs available for this product.