Novel indole and benzothiophene ring derivatives showing differential modulatory activity against human epithelial sodium channel subunits, ENaC β and γ

Yoichi Kasahara, Takanobu Sakurai, Ryusei Matsuda, Masataka Narukawa, Akihito Yasuoka, Naoki Mori, Hidenori Watanabe, Takayoshi Okabe, Hirotatsu Kojima, Keiko Abe, Takumi Misaka, Tomiko Asakura

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The epithelial sodium channel (ENaC) plays a pivotal role in sodium homeostasis, and the development of drugs that modulate ENaC activity is of great potential therapeutic relevance. We screened 6100 chemicals for their ability to activate sodium permeability of ENaC. We used a two-step strategy: a high throughput cell-based assay and an electrophysiological assay. Five compounds were identified showing common structural features including an indole or benzothiophene ring. ENaC consists of three subunits: α, β, and γ. Changing the heteromeric combination of human and mouse ENaC αβγ subunits, we found that all five compounds activated the human β subunit but not the mouse subunit. However, four of them exhibited lower activity when the human γ subunit was substituted by the mouse γ subunit. Our findings provide a structural basis for designing human ENaC activity modulators.

本文言語English
ページ(範囲)243-250
ページ数8
ジャーナルBioscience, Biotechnology and Biochemistry
83
2
DOI
出版ステータスPublished - 2019
外部発表はい

ASJC Scopus subject areas

  • バイオテクノロジー
  • 分析化学
  • 生化学
  • 応用微生物学とバイオテクノロジー
  • 分子生物学
  • 有機化学

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