Skin aging caused by intrinsic or extrinsic processes characterized with functional proteomics.
Proteomics
; 16(20): 2718-2731, 2016 10.
Article
en En
| MEDLINE
| ID: mdl-27459910
ABSTRACT
The skin provides protection against environmental stress. However, intrinsic and extrinsic aging causes significant alteration to skin structure and components, which subsequently impairs molecular characteristics and biochemical processes. Here, we have conducted an immunohistological investigation and established the proteome profiles on nude mice skin to verify the specific responses during aging caused by different factors. Our results showed that UVB-elicited aging results in upregulation of proliferating cell nuclear antigen and strong oxidative damage in DNA, whereas chronological aging abolished epidermal cell growth and increased the expression of caspase-14, as well as protein carbonylation. Network analysis indicated that the programmed skin aging activated the ubiquitin system and triggered obvious downregulation of 14-3-3 sigma, which might accelerate the loss of cell growth capacity. On the other hand, UVB stimulation enhanced inflammation and the risk of skin carcinogenesis. Collectively, functional proteomics could provide large-scale investigation of the potent proteins and molecules that play important roles in skin subjected to both intrinsic and extrinsic aging.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Piel
/
Envejecimiento de la Piel
/
Proteoma
/
Mapas de Interacción de Proteínas
Límite:
Animals
Idioma:
En
Revista:
Proteomics
Asunto de la revista:
BIOQUIMICA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Taiwán