Hypothalamic Contribution to Pituitary Functions Is Recapitulated In Vitro Using 3D-Cultured Human iPS Cells

  • Takatoshi Kasai
  • , Hidetaka Suga
  • , Mayu Sakakibara
  • , Chikafumi Ozone
  • , Ryusaku Matsumoto
  • , Mayuko Kano
  • , Kazuki Mitsumoto
  • , Koichiro Ogawa
  • , Yu Kodani
  • , Hiroshi Nagasaki
  • , Naoko Inoshita
  • , Mariko Sugiyama
  • , Takeshi Onoue
  • , Taku Tsunekawa
  • , Yoshihiro Ito
  • , Hiroshi Takagi
  • , Daisuke Hagiwara
  • , Shintaro Iwama
  • , Motomitsu Goto
  • , Ryoichi Banno
  • Jun Takahashi, Hiroshi Arima

Research output: Contribution to journalArticlepeer-review

Abstract

The pituitary is a major hormone center that secretes systemic hormones responding to hypothalamus-derived-releasing hormones. Previously, we reported the independent pituitary induction and hypothalamic differentiation of human embryonic stem cells (ESCs). Here, a functional hypothalamic-pituitary unit is generated using human induced pluripotent stem (iPS) cells in vitro. The adrenocorticotropic hormone (ACTH) secretion capacity of the induced pituitary reached a comparable level to that of adult mouse pituitary because of the simultaneous maturation with hypothalamic neurons within the same aggregates. Corticotropin-releasing hormone (CRH) from the hypothalamic area regulates ACTH cells similarly to our hypothalamic-pituitary axis. Our induced hypothalamic-pituitary units respond to environmental hypoglycemic condition in vitro, which mimics a life-threatening situation in vivo, through the CRH-ACTH pathway, and succeed in increasing ACTH secretion. Thus, we generated powerful hybrid organoids by recapitulating hypothalamic-pituitary development, showing autonomous maturation on the basis of interactions between developing tissues.

Original languageEnglish
Pages (from-to)18-24.e5
JournalCell Reports
Volume30
Issue number1
DOIs
Publication statusPublished - 07-01-2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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