Function and distribution of a steroidogenic cell-specific transcription factor, Ad4BP

K. Morohashi, O. Hatano, M. Nomura, K. Takayama, M. Hara, H. Yoshii, A. Takakusu, T. Omura

研究成果: ジャーナルへの寄稿学術誌査読

39 被引用数 (Scopus)


Ad4BP was identified as an essential transcription factor regulating steroidogenic cell-specific and cAMP-dependent transcription of the genes of steroidogenic P450s. The Ad4BP transcript was detected in steroidogenic tissues such as adrenal gland, testis, ovary, placenta and brain by RT-PCR, and showed good correlation with the expression of steroidogenic P450s. The genes of steroidogenic P450s, which are transcribed only in steroidogenic cells, were transcribed in non-steroidogenic cells when an Ad4BP expression vector was introduced into the cells. To study the function of Ad4BP in the differentiation of the steroidogenic tissues, immunochemical and immunohistochemical studies were performed with the tissues prepared from various developmental stages of rats. Adrenal cortex expressed Ad4BP since the tissue was detected in the dorsal wall of the fetus. Gonadal tissues expressed Ad4BP in a sex-dependent manner. High levels of Ad4BP expression were detected in fetal and prepubertal testes and in prepubertal and adult ovaries, whereas low level expressions were observed in the adult testes and in the fetal ovaries. The expression of Ad4BP in the gonads correlates well with the expression of the Müllerian inhibiting substance gene as well as the steroidogenic P450 gene for both sexes. These observations indicate that Ad4BP plays an important role in the development and differentiation of the steroidogenic tissues including sexual differentiation of the gonadal tissues through activation of the transcription of its target genes.

ジャーナルJournal of Steroid Biochemistry and Molecular Biology
出版ステータス出版済み - 6月 1995

!!!All Science Journal Classification (ASJC) codes

  • 内分泌学、糖尿病および代謝内科学
  • 生化学
  • 分子医療
  • 分子生物学
  • 内分泌学
  • 臨床生化学
  • 細胞生物学


「Function and distribution of a steroidogenic cell-specific transcription factor, Ad4BP」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。