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Physiological role of vasopressin neurons in olfactory bulb

Research Project

Project/Area Number 24791816
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Otorhinolaryngology
Research InstitutionUniversity of Occupational and Environmental Health, Japan

Principal Investigator

OHBUCHI Toyoaki  産業医科大学, 医学部, 助教 (00412651)

Co-Investigator(Renkei-kenkyūsha) SUZUKI Hideaki  産業医科大学, 医学部耳鼻咽喉科・頭頸部外科学, 教授 (20187751)
UETA Yoichi  産業医科大学, 医学部第一生理学, 教授 (10232745)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords鼻科生理学 / pannexin channel
Research Abstract

Pannexins are a family of transmembrane nonselective channel proteins that participate in the release of ATP into extracellular space. In the present study, we investigate the expressions of pannexin-1 and purinergic P2X7 receptor in human nasal mucosa, together with hypotonic stress-induced ATP release from this tissue.
Substantial expressions of both proteins were observed in human nasal mucosa by fluorescence immunohistochemistry. The presence of the transcripts of pannexin-1 and P2X7 was also shown by qRT-PCR. Carbenoxolone (a pannexin-1 channel blocker) significantly inhibited the ATP release from the nasal mucosa, but flufenamic acid (a connexin channel blocker) and gadolinium (a stretch-activated channel blocker) did not.
These results indicate the coexistence of Panx1 and P2X7 in, and pannexin-1-dependent ATP release from, the human nasal mucosa, suggesting the possible participation of these molecules in the physiological functions of the upper airway.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (9 results)

All 2014 2013 2012

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (4 results)

  • [Journal Article] Possible contribution of pannexin-1 to ATP release in human upper airway epithelia2014

    • Author(s)
      Ohbuchi T, Takenaga F, Hohchi N, Wakasugi T, Ueta Y, Suzuki H
    • Journal Title

      Physiol Rep

      Volume: 2(2)

    • Related Report
      2013 Final Research Report
  • [Journal Article] Possible contribution of pannexin-1 to ATP release in human upper airway epithelia2014

    • Author(s)
      Ohbuchi T, Takenaga F, Hohchi N, Wakasugi T, Ueta Y, Suzuki H
    • Journal Title

      Physiological Reports

      Volume: 2 Issue: 2 Pages: e00227-e00227

    • DOI

      10.1002/phy2.227

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of pannexins in rat nasal mucosa2013

    • Author(s)
      Ohbuchi T, Hohchi N, Ohkubo J, Hashida K, Koizumi H, Wakasugi T, Takenaga F, Suzuki H
    • Journal Title

      Allergy Rhinol

      Volume: 4(2)

    • Related Report
      2013 Final Research Report
  • [Journal Article] Identification of pannexins in rat nasal mucosa2013

    • Author(s)
      Ohbuchi T, Hohchi N, Ohkubo J, Hashida K, Koizumi H, Wakasugi T, Takenaga F, Suzuki H
    • Journal Title

      Allergy & rhinology (Providence, R.I.)

      Volume: 4 Issue: 2

    • DOI

      10.2500/ar.2013.4.0052

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of pannexins in rat nasal mucosa.2013

    • Author(s)
      Ohbuchi T, Hohchi N, Ohkubo J, Hashida K, Koizumi H, Wakasugi T, Takenaga F, Suzuki H.
    • Journal Title

      Allergy & Rhinology

      Volume: in press

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 鼻腔粘膜におけるpannexin-1 の発現と機能2014

    • Author(s)
      大淵豊明, 武永芙美子, 寳地信介, 若杉哲郎, 鈴木 秀明
    • Organizer
      第32回日本耳鼻咽喉科免疫アレルギー学会
    • Place of Presentation
      徳島 (ホテルクレメント徳島)
    • Related Report
      2013 Final Research Report
  • [Presentation] 鼻腔粘膜におけるpannexin-1の発現と機能2014

    • Author(s)
      大淵豊明、武永芙美子、寳地信介、若杉哲郎、鈴木秀明
    • Organizer
      第32回 日本耳鼻咽喉科免疫アレルギー学会
    • Place of Presentation
      徳島 (ホテルクレメント徳島)
    • Related Report
      2013 Annual Research Report
  • [Presentation] ラット鼻中隔粘膜におけるパネキシンの発現と病態生理学的特性2012

    • Author(s)
      大淵豊明, 武永芙美子, 寳地信介, 若杉哲郎, 鈴木秀明
    • Organizer
      第30回産業医科大学学会総会
    • Place of Presentation
      北九州 (産業医科大学)
    • Related Report
      2013 Final Research Report
  • [Presentation] ラット鼻中隔粘膜におけるパネキシンの発現と病態生理学的特性2012

    • Author(s)
      大淵豊明
    • Organizer
      第30回産業医科大学学会総会
    • Place of Presentation
      産業医科大学 (北九州)
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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