Development and Reproduction (한국발생생물학회지:발생과생식)

The Korean Society of Developmental Biology (한국발생생물학회)
권호 표지

Effects of Nonylphenol and 2,2',4,6,6'-Pentachlorobiphenyl on In Vitro Steroidogenesis in Maturing Oocytes of Ribbed Gunnel, Dictyosoma burgeri

그물베도라치, Dictyosoma burgeri의 성숙기 난모세포 스테로이드 대사에 미치는 Nonylphenol과 2,2',4,6,6'-Pentachlorobiphenyl의 효과

  • Hwang, In-Joon (Dept. of Marine Biology, Pukyong National University) ;
  • Baek, Hea-Ja (Dept. of Marine Biology, Pukyong National University)
  • 황인준 (부경대학교 자원생물학과) ;
  • 백혜자 (부경대학교 자원생물학과)
  • Received : 2010.03.24
  • Accepted : 2010.06.07
  • Published : 2010.06.30
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Abstract

The in vitro effects of nonylphenol (NP) and 2,2',4,6,6'-pentachlorobiphenyl (PCB104) on ovarian steroidogenesis of the ribbed gunnel, Dictyosoma burgeri were investigated. Oocytes taken during maturation stage were incubated with 100 ng/$m{\ell}$ of NP and PCB104 in the presence of exogenous precursor, $[^3H]-17{\alpha}$-hydroxyprogesterone ($[^3H]-17{\alpha}OHP$). Steroids were extracted from the media and the isolated oocytes, and the extracts were separated and identified by thin layer chromatography. The identities of the major metabolites were testosterone (T) and estradiol-$17{\beta}$ (E2). NP treatment inhibited production of E2 metabolite in the oocytes of 1.2, 1.3 and 1.4 mm although NP inhibited production of T metabolite at the oocytes of 1.1, 1.3 and 1.4 mm. PCB104 treatment inhibited production of T metabolite in the oocytes of all groups and E2 metabolite in the oocytes of 1.2, 1.3 and 1.4 mm. In conclusion, these results suggested that NP and PCB104 had an inhibitory effects on conversion of $[^3H]-17{\alpha}OHP$ to T and E2 during the oocyte maturation process of ribbed gunnel.

본 연구에서는 nonylphenol(NP)과 2,2',4,6,6'-pentachlorobiphenyl(PCB104)이 성숙한 그물베도라치의 난소 스테로이드 대사과정에 미치는 영향을 조사하였다. 그물베도라치의 성숙란을 방사 표지된 스테로이드 전구물질인 $[^3H]-17{\alpha}$-hydroxyprogesterone($[^3H]-17{\alpha}OHP$)와 함께 NP와 PCB104를 각각 100 ng/$m{\ell}$의 농도로 첨가하여 배양하였다. 배양 후 배양액과 난모세포로부터 스테로이드 호르몬을 추출하여 박막 크로마토그래피를 통해 분리 및 동정하였으며, 주요 스테로이드 대사물질로는 testosterone(T)과 estradiol-$17{\beta}$(E2)로 확인되었다. NP는 난경 1.1, 1.3 그리고 1.4 mm인 난모세포에서 T로의 대사를 저해하였으나, 난경 1.2, 1.3 그리고 1.4 mm인 난모세포에서는 E2로의 대사를 저해하였다. PCB104는 모든 난경의 난모세포에서 T로의 대사를 저해하였으며, 난경 1.2, 1.3 그리고 1.4 mm인 난모세포에서는 E2로의 대사를 저해하였다. 결론적으로, NP와 PCB104는 그물베도라치의 난모세포 성숙 과정에 있어 $[^3H]-17{\alpha}OHP$로부터 T와 E2로의 전환을 저해시키는 것으로 사료된다.

Keywords

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