Expression of osmotically responsive cationic channel TRPV4 in the endolymphatic sac

نویسندگان

  • Hidetaka Kumagami
  • Mariko Terakado
  • Yuzuru Saino
  • Akiko Baba
  • Daisuke Fujiyama
  • Tomomi Fukuda
  • Kenji Takasaki
  • Haruo Takahashi
چکیده

The immunohistochemical expression pattern and the physiological role of transient receptor potential vanilloid (TRPV) 4 in the endolymphatic sac were investigated. TRPV4 was expressed predominantly in the apical membrane of the mitochondria-rich cells and cell volume regulation by TRPV4 was observed in a tissue culture of the rat endolymphatic sac. TRPV4 was also present in the endolymphatic sac of both patients with vestibular schwannoma and with Meniere’s disease. TRPV4 is assumed to plays a role in cell and fluid volume regulation in the human endolymphatic sac as an osmoreceptor. Key word: Endolymphatic sac , Transient receptor potential vanilloid 4 , Meniere’s disease , Osmolarity

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Expression of the osmotically responsive cationic channel TRPV4 in the endolymphatic sac.

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تاریخ انتشار 2017