Dermal Stability and In Vitro Skin Permeation of Collagen Pentapeptides (KTTKS and palmitoyl-KTTKS)
Biomolecules & Therapeutics
;
: 321-327, 2014.
Artículo
en Inglés
| WPRIM
| ID: wpr-199229
ABSTRACT
Collagen pentapeptide (Lys-Thr-Thr-Lys-Ser, KTTKS) and its palmitoylated derivative (pal-KTTKS) have received a great deal of attention as cosmeceutical ingredients for their anti-wrinkle effects. The objective of this study was to evaluate stability and permeability of KTTKS and pal-KTTKS in hairless mouse skin. In this study, a liquid chromatography-tandem mass spectrometric method was developed for the quantification of pal-KTTKS, and used for stability and permeability studies. Stability studies were performed using skin extracts and homogenates. Both KTTKS and pal-KTTKS were rapidly degraded, but pal-KTTKS was more stable than KTTKS. When protease inhibitors were added, the stability of both compounds (KTTKS and pal-KTTKS) improved significantly. In the skin permeation study, neither KTTKS nor pal-KTTKS was detected in the receptor solution, which indicates that neither compound could permeate through the full-thickness hairless mouse skin in the experimental conditions of this study. While KTTKS was not detected in any of the skin layers (the stratum corneum, epidermis, and dermis), pal-KTTKS was observed in all skin layers 4.2 +/- 0.7 microg/cm2 in the stratum corneum, 2.8 +/- 0.5 microg/cm2 in the epidermis, and 0.3 +/- 0.1 microg/cm2 in the dermis. In conclusion, this study indicated that pal-KTTKS had greater stability and permeability than that of un-modified KTTKS, and may be a useful anti-wrinkle and anti-aging cosmeceutical agent.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Permeabilidad
/
Inhibidores de Proteasas
/
Piel
/
Colágeno
/
Dermis
/
Epidermis
/
Ratones Pelados
Límite:
Animales
Idioma:
Inglés
Revista:
Biomolecules & Therapeutics
Año:
2014
Tipo del documento:
Artículo
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