Tributyltin increases the expression of apoptosis- and adipogenesis-related genes in rat ovaries / 대한생식의학회지
Clinical and Experimental Reproductive Medicine
;
: 15-21, 2012.
Artículo
en Inglés
| WPRIM
| ID: wpr-133476
ABSTRACT
OBJECTIVE:
Tributyltin (TBT), an endocrine disrupting chemical, has been reported to decrease ovarian function by causing apoptosis in the ovary, but the mechanism is not fully understood. Therefore, we examined whether TBT increases the expression of adipogenesis-related genes in the ovary and the increased expression of these genes is associated with apoptosis induction.METHODS:
Three-week-old Sprague-Dawley rats were orally administered TBT (1 or 10 mg/kg body weight) or sesame oil as a control for 7 days. The ovaries were obtained and weighed on day 8, and then they were fixed for terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) or frozen for RNA extraction. Using the total RNA of the ovaries, adipogenesis- and apoptosis-related genes were analyzed by real-time polymerase chain reaction (PCR).RESULTS:
The ovarian weight was significantly decreased in rats administered 10 mg/kg TBT compared to that in control rats. As determined by the TUNEL assay, the number of apoptotic follicles in ovary was significantly increased in rats administered 10 mg/kg TBT. The real-time PCR results showed that the expression of adipogenesis-related genes such as PPARgamma, aP2, CD36, and PEPCK was increased after TBT administration. In addition, apoptosis-related genes such as TNFalpha and TNFR1 were expressed more in the TBT-administered rats compared with the control rats.CONCLUSION:
The present study demonstrates that TBT induces the expression of adipogenesis- and apoptosis-related genes in the ovary leading to apoptosis in the ovarian follicles. These results suggest that the increased expression of adipogenesis-related genes in the ovary by TBT exposure might induce apoptosis resulting in a loss of ovarian function.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Ovario
/
Compuestos de Trialquiltina
/
ARN
/
Aceite de Sésamo
/
Factor de Necrosis Tumoral alfa
/
Ratas Sprague-Dawley
/
Apoptosis
/
Etiquetado Corte-Fin in Situ
/
Receptores Tipo I de Factores de Necrosis Tumoral
/
PPAR gamma
Límite:
Animales
Idioma:
Inglés
Revista:
Clinical and Experimental Reproductive Medicine
Año:
2012
Tipo del documento:
Artículo
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