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생식소 자극 호르몬과 NO에 의한 생쥐 여포의 Bad와 Bax 유전자 조절
Gonadotropins and Nitric Oxide Can Suppress the Expression of Mouse Follicular Bad and Bax Genes

김외리    (인제대학교 자연과학대학 생물학과  );
  • 초록

    the pupose of this study was to investigate the effects of gonadotropin and nitric oxide (NO) on the expression of mouse follicular bad and bax genes that are known induce apoptosis. Large and midium size follicles of immature mice were obtained at 0, 24, and 48 hours time intervals after Pregnant Mare's Serum gonadotropins(PMSG, 5 I.U.) injection. Preovulatory follicles collected at 24 hrs after PMSG injection were cultured with or without various chemicals such as gonadotropin, gonadotropin Releasing hormone(GnRH), testosterone, Sodium nitroprusside (SNP) for 24 hrs at $37^{\circ}C$ . After 24 hrs culture, the culture media was used for nitrite assay and total RNA was extracted, subjected to RT-PCT for the analyses of bad and bax expression. We found that expression of bad and bax genes in follicles was markedly reduced before and after in vivo priming with hCG. When the preovulatory follicles were cultured for 24 hrs in culture media with PMSG and hCG, the expression of bad and bax genes was decreased. Moreover, SNP (NO generating agent) can significantly suppress the expression of bad and bax genes in follicles when apoptosis was induced by GnRH agonist and testosterone. At the same time, nitrite production of culture media was increased in GnRH agonist + SNP, testosterone + SNP and SNP treated groups than control group. These data demonstrated for the first time that peptide hormones and NO may play important roles in the regulation of mouse follicular differentiation and may prevent apoptosis via supressing the expression of bad and bax genes.


  • 주제어

    Apoptosis .   Bad .   Bax .   Mouse follicle .   No.  

 저자의 다른 논문

  • 김외리 (1)

    1. 1995 "Gonadotropin과 Steroid에 의한 난소 과립세포의 Apoptosis와 Nitric Oxide 합성에 대한 영향" 한국동물학회 뉴스레터 = The Zoological Society Korea : Newsletter 12 (2): 101.1~101.1    

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