論文

査読有り 国際誌
2019年

Null mutation of the endothelin receptor type B gene causes embryonic death in the GK rat.

PloS one
  • Jinxi Wang
  • ,
  • Ruihua Dang
  • ,
  • Yoshiki Miyasaka
  • ,
  • Kousuke Hattori
  • ,
  • Daisuke Torigoe
  • ,
  • Tadashi Okamura
  • ,
  • Hassan T Tag-Ei-Din-Hassan
  • ,
  • Masami Morimatsu
  • ,
  • Tomoji Mashimo
  • ,
  • Takashi Agui

14
6
開始ページ
e0217132
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1371/journal.pone.0217132

The Hirschsprung disease (HSCR) is an inherited disease that is controlled by multiple genes and has a complicated genetic mechanism. HSCR patients suffer from various extents of constipation due to dysplasia of the enteric nervous system (ENS), which can be so severe as to cause complete intestinal obstruction. Many genes have been identified as playing causative roles in ENS dysplasia and HSCR, among them the endothelin receptor type B gene (Ednrb) has been identified to play an important role. Mutation of Ednrb causes a series of symptoms that include deafness, pigmentary abnormalities, and aganglionosis. In our previous studies of three rat models carrying the same spotting lethal (sl) mutation on Ednrb, the haplotype of a region on chromosome (Chr) 2 was found to be responsible for the differing severities of the HSCR-like symptoms. To confirm that the haplotype of the responsible region on Chr 2 modifies the severity of aganglionosis caused by Ednrb mutation and to recreate a rat model with severe symptoms, we selected the GK inbred strain, whose haplotype in the responsible region on Chr 2 resembles that of the rat strain in which severe symptoms accompany the Ednrbsl mutation. An Ednrb mutation was introduced into the GK rat by crossing with F344-Ednrbsl and by genome editing. The null mutation of Ednrb was found to cause embryonic death in F2 progeny possessing the GK haplotype in the responsible region on Chr 2. The results of this study are unexpected, and they provide new clues and animal models that promise to contribute to studies on the genetic regulatory network in the development of ENS and on embryogenesis.

リンク情報
DOI
https://doi.org/10.1371/journal.pone.0217132
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31170185
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6553694
ID情報
  • DOI : 10.1371/journal.pone.0217132
  • PubMed ID : 31170185
  • PubMed Central 記事ID : PMC6553694

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