Peptable

Comparison

MGF vs Selank

Also see:

MGFSelank

Function

While MGF is upregulated in muscle after mechanical overload, where it supports tissue repair and growth; recombinant forms are studied for regenerative and performance-enhancement effects22138, Selank is a peptide developed in Russia as an anxiolytic and nootropic; in animal models it reduces anxiety-like behavior and modulates immune parameters under stress39.

Mechanism

While MGF works as a 24-amino-acid E-peptide splice variant of IGF-1 (IGF-1Ec) produced in mechanically stressed or damaged muscle that activates IGF1R and local anabolic pathways involved in muscle repair and hypertrophy22138144, Selank is a synthetic heptapeptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro, that combines a tuftsin fragment with a Pro-Gly-Pro motif and is reported to modulate GABAergic neurotransmission and cytokine balance while being resistant to proteolytic degradation39.

Receptor

MGF

Insulin-like growth factor 1 receptor (IGF1R) 134139

Selank

Not clearly established in the current dataset.

Organism or Origin

MGF

Endogenous human IGF-1 splice variant (IGF-1Ec) 2213897

Selank

Synthetic analog of the IgG-derived tetrapeptide tuftsin39

Gene

MGF

IGF1

Selank

Not assigned in the current dataset.

Summary

The clearest overlap between MGF and Selank is that both converge around Signaling modulator. Their typical research and application settings separate fairly clearly: MGF is more often discussed in the realm of Musculoskeletal health, whereas Selank is more often associated with the realm of Neurology and brain health and Immunology and inflammation. Both appear to work through Signaling modulator, but the functional emphasis still separates, with MGF leaning toward Anabolic growth and Tissue repair and healing and Selank leaning toward Anxiolytic and sleep modulation and Immune regulation. MGF has a more natural endogenous origin, while Selank is closer to synthetic analog background with MGF in Preclinical development and Selank approved for Research use only. Their sequence patterns also diverge, with MGF showing protein-mimetic sequence features and Selank showing proline-rich features.

Related articles

No related articles are linked to these peptides yet.

Sources

22Mechano growth factor - Wikipedia, https://en.wikipedia.org/wiki/Mechano_growth_factor
97IGF1 Gene - Insulin Like Growth Factor 1, https://www.genecards.org/cgi-bin/carddisp.pl?gene=IGF1
134Insulin-like growth factor 1 receptor - Wikipedia, https://en.wikipedia.org/wiki/Insulin-like_growth_factor_1_receptor
138A Splice Variant of IGF-1 within the Growth Plate | PLOS One, https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0076133
139IGF1 receptor signaling pathways, https://pubmed.ncbi.nlm.nih.gov/29535161/
144Insulin-like growth factor 1 - Wikipedia, https://en.wikipedia.org/wiki/Insulin-like_growth_factor_1
39Application of thr-lys-pro-arg-pro-gly-pro peptide (selank) for ..., https://patents.google.com/patent/RU2629832C1/en