Acetyl tetrapeptide-5
is used in cosmetic eye formulations to decrease puffiness, eye bags, and dark circles by reducing edema and protecting proteins such as SOD from glycation
Alanine
Ala / A · hydrophobic residue · neutral charge
AOD-9604
is studied as an anti-obesity peptide that can reduce weight gain and increase fat oxidation in obese animal models with generally neutral effects on IGF-1 and glucose metabolism in early human trials
Arginine
Arg / R · basic residue · positive charge
Argireline
is a topical cosmetic peptide reported to decrease dynamic wrinkles by partially mimicking the mechanism of botulinum toxin in a non-invasive manner
Asparagine
Asn / N · polar residue · neutral charge
Aspartic acid
Asp / D · acidic residue · negative charge
BPC-157
is investigated for accelerating healing of gastrointestinal mucosa, tendons, ligaments, bone, and nervous tissue in preclinical models, with anti-inflammatory and pro-angiogenic effects
Comparison
While FOXO4-DRI acts as a senolytic in preclinical models by promoting apoptosis of senescent cells, improving tissue function and healthspan measures in aged animals38, 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.
While FOXO4-DRI works as a D-retro-inverso peptide derived from a FOXO4 region that competes with endogenous FOXO4 for binding to p53, thereby releasing p53 to trigger apoptosis selectively in senescent cells38, 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.
FOXO4-DRI
Intracellular target is the FOXO4–p53 protein–protein interaction interface; it does not signal via a traditional cell-surface receptor38
Selank
Not clearly established in the current dataset.
FOXO4-DRI
FOXO4
Selank
Not assigned in the current dataset.
FOXO4-DRI and Selank are noticeably different, with limited direct overlap in their usual biological context. Their typical research and application settings separate fairly clearly: FOXO4-DRI is more often discussed in the realm of Aging and longevity, whereas Selank is more often associated with the realm of Neurology and brain health and Immunology and inflammation. Their biological logic is quite different: FOXO4-DRI is a protein interaction inhibitor, whereas Selank is a neurotransmitter modulator and a signaling modulator. FOXO4-DRI has a more synthetic design origin, while Selank is closer to synthetic analog background with FOXO4-DRI in Preclinical development and Selank approved for Research use only. FOXO4-DRI incorporates retro-inverso isomerization features that are not part of Selank, while their sequence patterns also diverge, with FOXO4-DRI showing protein-mimetic sequence features and Selank showing proline-rich features.
No related articles are linked to these peptides yet.