External genitalia formation: Role of fibroblast growth factor, retinoic acid signaling, and distal urethral epithelium

Yukiko Ogino, Kentaro Suzuki, Ryuma Haraguchi, Yoshihiko Satoh, Pascal Dolle, Gen Yamada

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The process of fetal external genitalia development might be divided into two processes. The first process accomplishes the initial outgrowth of the anlage, genital tubercle (GT). Previous analysis suggests that the distal urethral epithelium (DUE) of the GT, the Fgf8-expressing region, regulates the outgrowth of the GT. The second process eventually generates the sexually dimorphic development of the external genitalia, which is dependent on the action of steroid hormones. Several key genes, for example, RARs, RXRs, RALDH2, and CYP26, were dynamically expressed during GT development. The teratogenic dose of RA at 9.0 d.p.c. induced a drastic malformation of the urethral plate during GT formation, but did not show gross abnormalities in its outgrowth. In RA-treated embryos, Fgf8 expression was still detected in the distal GT regions. Possible regulatory roles of the FGF and RA signaling systems in external genitalia formation are discussed.

Original languageEnglish
Pages (from-to)13-31
Number of pages19
JournalAnnals of the New York Academy of Sciences
Volume948
Publication statusPublished - Jan 1 2001
Externally publishedYes

Fingerprint

Steroid hormones
Genitalia
Fibroblast Growth Factors
Tretinoin
Epithelium
Genes
Embryonic Structures
Steroids
Hormones
Distal

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science

Cite this

External genitalia formation : Role of fibroblast growth factor, retinoic acid signaling, and distal urethral epithelium. / Ogino, Yukiko; Suzuki, Kentaro; Haraguchi, Ryuma; Satoh, Yoshihiko; Dolle, Pascal; Yamada, Gen.

In: Annals of the New York Academy of Sciences, Vol. 948, 01.01.2001, p. 13-31.

Research output: Contribution to journalArticle

Ogino, Yukiko ; Suzuki, Kentaro ; Haraguchi, Ryuma ; Satoh, Yoshihiko ; Dolle, Pascal ; Yamada, Gen. / External genitalia formation : Role of fibroblast growth factor, retinoic acid signaling, and distal urethral epithelium. In: Annals of the New York Academy of Sciences. 2001 ; Vol. 948. pp. 13-31.
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