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

نویسندگان

  • H Kumagami
  • M Terakado
  • Y Sainoo
  • A Baba
  • D Fujiyama
  • T Fukuda
  • K Takasaki
  • H 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 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 sacs of patients with vestibular schwannoma and with Ménière's disease. TRPV4 is assumed to play a role as an osmoreceptor in cell and fluid volume regulation in the human endolymphatic sac.

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Expression of osmotically responsive cationic channel TRPV4 in the endolymphatic sac

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عنوان ژورنال:
  • Audiology & neuro-otology

دوره 14 3  شماره 

صفحات  -

تاریخ انتشار 2009