Acute Stress-Induced Changes in Follicular Dermal Papilla Cells and Mobilization of Mast Cells: Implications for Hair Growth
Annals of Dermatology
;
: 600-606, 2016.
Artículo
en Inglés
| WPRIM
| ID: wpr-59028
ABSTRACT
BACKGROUND:
Stress is a known cause of hair loss in many species.OBJECTIVE:
In this study, we investigated the role of acute stress on hair growth using a rat model.METHODS:
Rats were immobilized for 24 hours and blood samples, and skin biopsies were taken. The effect of stress-serum on the in vitro proliferation of rat and human dermal papilla cells (hDPCs), as well as serum cortisol and corticotropin-releasing hormone levels, were measured. Mast cell staining was performed on the biopsied tissue. In addition, Western blot and quantitative real time polymerase chain reaction were used to assess mast cell tryptase and cytokine expression, respectively in rat skin biopsies.RESULTS:
Stress-serum treatment reduced significantly the number of viable hDPCs and arrested the cell cycle in the G1 phase, compared to serum from unrestrained rats (p<0.05, respectively). Moreover, restrained rats had significantly higher levels of cortisol in serum than unrestrained rats (p<0.01). Acute stress serum increased mast cell numbers and mast cell tryptase expression, as well as inducing interleukin (IL)-6 and IL-1β up-regulation.CONCLUSION:
These results suggest that acute stress also has an inhibitory effect on hair growth via cortisol release in addition to substance P-mast cell pathway.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Piel
/
Biopsia
/
Técnicas In Vitro
/
Hormona Liberadora de Corticotropina
/
Hidrocortisona
/
Ciclo Celular
/
Regulación hacia Arriba
/
Western Blotting
/
Fase G1
/
Interleucinas
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
/
Humanos
Idioma:
Inglés
Revista:
Annals of Dermatology
Año:
2016
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS