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Hexapeptide-11

CAT#
CPC1625
Synonyms/Alias
CTK0A9800; L-Proline
CAS No.
100684-36-4
M.W/Mr.
676.80232
Molecular Formula
C36H48N6O7
Description
Hexapeptide-11 (Phe-Val-Ala-Pro-Phe-Pro) is originally isolated from yeast extracts and later synthesized by solid state synthesis to high purity.
References
Peptamide 6; Vital Hair and Scalp Complex
INCIName
Hexapeptide-11
Storage
Common storage 2-8℃, long time storage -20℃.
Functions
Hexapeptide-11 can induce the activity of extracellular MMPs and suppress cell migration. It helps reduce wrinkles, combat skin-aging and improve the skin elasticity.

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Hexapeptide-11 reduces the appearance of fine lines and wrinkles, making this an excellent addition to all kinds of skin care and anti-aging products. It has a unique set of amino acids that help to recreate a select many found in genes within the human body, allowing it to manipulate collagen levels and boost elasticity in the skin.

Despite the fact that several natural products (e.g. crude extracts or purified compounds) have been found to activate cell antioxidant responses and/or delay cellular senescence the effect(s) of small peptides on cell viability and/or modulation of protective mechanisms (e.g. the proteostasis network) remain largely elusive. We have thus studied a hexapeptide (Hexapeptide-11) of structure Phe-Val-Ala-Pro-Phe-Pro (FVAPFP) originally isolated from yeast extracts and later synthesized by solid state synthesis to high purity. We show herein that Hexapeptide-11 exhibits no significant toxicity in normal human diploid lung or skin fibroblasts. Exposure of fibroblasts to Hexapeptide-11 promoted dose and time-dependent activation of proteasome, autophagy, chaperones and antioxidant responses related genes. Moreover, it promoted increased nuclear accumulation of Nrf2; higher expression levels of proteasomal protein subunits and increased proteasome peptidase activities. In line with these findings we noted that Hexapeptide-11 conferred significant protection in fibroblasts against oxidative-stress-mediated premature cellular senescence, while at in vivo skin deformation assays in human subjects it improved skin elasticity. Finally, Hexapeptide-11 was found to induce the activity of extracellular MMPs and it also suppressed cell migration. Our presented findings indicate that Hexapeptide-11 is a promising anti-ageing agent.

Sklirou, A. D., Ralli, M., Dominguez, M., Papassideri, I., Skaltsounis, A. L., & Trougakos, I. P. (2015). Hexapeptide-11 is a novel modulator of the proteostasis network in human diploid fibroblasts. Redox biology, 5, 205-215.

A hexapeptide (Hexapeptide-11) of structure Phe-Val-Ala-Pro-Phe-Pro (FVAPFP) originally isolated from yeast extracts and later synthesized by solid state synthesis to high purity has demonstrated an ability to influence the onset of senescence in intrinsically aged fibroblasts, extrinsically aged fibroblasts, and extrinsically aged dermal papillae cells in vitro. The mechanism of senescence control is believed to be related to the peptide's ability to reversibly downregulate ataxia telangiectasia mutated (ATM) and p53 protein expression. The importance of p53 as the gatekeeping protein for monitoring cellular DNA damage is strategic for maintaining cellular health. ATM activates p53 by direct phosphorylation, causing cells to move into senescence which effectively moves them out of reproductive processes. Technologies that can influence ATM and p53 expression may offer unique benefits for controlling cellular senescence and effectively delaying cellular aging processes. The influence on ATM and p53 expression is noted to occur in both cell lines at peptide concentrations between 0.1% and 1.0%. The implications of these effects for aging benefits for skin and hair is important as, to date, no known small peptide has been suggested to demonstrate this effect in such a reversible and dose-dependent fashion.

Gruber, J. V., Ludwig, P., & Holtz, R. (2013). Modulation of cellular senescence in fibroblasts and dermal papillae cells in vitro. Journal of cosmetic science, 64(2), 79-87.

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