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The irradiation on tooth root formation and development of treatments for tooth root regeneration

Research Project

Project/Area Number 22791818
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Pathobiological dentistry/Dental radiology
Research InstitutionThe Nippon Dental University

Principal Investigator

IDE Yoshiaki  日本歯科大学, 生命歯学部, 講師 (70409225)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords放射線治療 / 歯根形成 / 小児白血病 / ヘルトヴィッヒ上皮鞘 / 再生医療 / 上皮間葉相互作用 / 放射線障害 / マウス / 臼歯
Research Abstract

To elucidate the mechanisms by which radiation can impair tooth root formation, we irradiated the heads of mice and investigated the influence of radiation exposure on tooth root formation. The following results were obtained.<1> With irradiation at 10 Gy and 20 Gy, histomorphological abnormalities of the apical area were observed starting on postnatal day 15(P15) and P11, respectively.<2> The irradiated group(20 Gy) showed abnormal kinetics of Hertwig's epithelial root sheath cells.<3> As the radiation dose increased, the number of proliferating cells in the pulp near the root apex tended to decrease.<4> In pulp cells near the root apex, no marked increase in TUNEL-positive cells due to irradiation was seen. These results demonstrate that radiation of the head affects tooth root formation. To elucidate the mechanism by which irradiation causes impaired tooth root formation and to develop treatment, further investigation is currently underway.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (28 results)

All 2011 2010

All Journal Article (8 results) (of which Peer Reviewed: 7 results) Presentation (20 results)

  • [Journal Article] The effects of oral xylitol administration on bone density in rat femur2011

    • Author(s)
      Sato H, Ide Y, Nasu M, Numabe Y
    • Journal Title

      Odontology

      Volume: 98 Pages: 28-33

    • NAID

      10029303183

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] 口のふしぎと歯のふしぎ歯科疾患が原因で鼻づまりが起こるって本当ですか?2011

    • Author(s)
      井出吉昭
    • Journal Title

      DHstyle

      Volume: 5巻7号 Pages: 14-16

    • Related Report
      2011 Final Research Report
  • [Journal Article] The effects of oral xylitol administration on bone density in rat femur.2011

    • Author(s)
      Sato H, Ide Y, Nasu M, Numabe Y.
    • Journal Title

      Odontology

      Volume: 99 Pages: 28-33

    • NAID

      10029303183

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Establishment and characterization of the rhabdomyosarcoma cell line designated NUTOS derived from the human tongue sarcoma : Special reference to the susceptibility of anti-cancer drugs2010

    • Author(s)
      Suzuki M, Tominaga N, Ide Y, Ohyama A, Nakahara T, Ishikawa H, Tanaka A, Mataga I
    • Journal Title

      Hum Cell.

      Volume: 23 Pages: 65-73

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] 上顎骨犬歯部領域のCTによる骨形態の検討2010

    • Author(s)
      山田麻衣子, 井出吉昭, 高森等, 代居敬
    • Journal Title

      日本口腔インプラント学会誌

      Volume: 23 Pages: 239-247

    • NAID

      10027087668

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel amelanotic and melanotic cell lines NM78-AM and NM78-MM derived from a human oral malignant melanoma2010

    • Author(s)
      Nakahara T, Tamaki Y, Tominaga N, Ide Y, Nasu M, Ohyama A, Sato S, Ishiwata I, Ishikawa H
    • Journal Title

      Hum Cell.

      Volume: 23 Pages: 15-25

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Establishment and characterization of the rhabdomyosarcoma cell line designated NUTOS derived from the human tongue sarcoma : Special reference to the susceptibility of anti-cancer drugs.2010

    • Author(s)
      Suzuki M, Tominaga N, Ide Y, Ohyama A, Nakahara T, Ishikawa H, Tanaka A, Mataga I.
    • Journal Title

      Human Cell

      Volume: 23 Pages: 65-73

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel amelanotic and melanotic cell lines NM78-AM and NM78-MM derived from a human oral malignant melanoma.2010

    • Author(s)
      Nakahara T, Tamaki Y, Tominaga N, Ide Y, Nasu M, Ohyama A, Sato S, Ishiwata I, Ishikawa H.
    • Journal Title

      Human Cell

      Volume: 23 Pages: 15-25

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] マウス頭部エックス線照射モデルによる歯根形成障害の解析2011

    • Author(s)
      井出吉昭, 中原貴, 那須優則, 富永徳子, 田巻友一, 石川博
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      岐阜
    • Year and Date
      2011-09-10
    • Related Report
      2011 Final Research Report
  • [Presentation] ヒト歯肉由来血管内皮細胞の分離と同定2011

    • Author(s)
      那須優則, 中原貴, 井出吉昭, 富永徳子, 田巻友一, 石川博
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      岐阜
    • Year and Date
      2011-09-10
    • Related Report
      2011 Final Research Report
  • [Presentation] マウス下顎臼歯歯根形成期におけるヘルトヴィッヒ上皮鞘とその周囲組織の細胞動態の観察2011

    • Author(s)
      鎌田弘明, 高見沢聡一, 井出吉昭, 富永徳子, 中原貴
    • Organizer
      日本解剖学会
    • Place of Presentation
      横浜
    • Related Report
      2011 Final Research Report
  • [Presentation] マウス頭部エックス線照射モデルによる歯根形成障害の解析2011

    • Author(s)
      井出吉昭、中原貴、那須優則、富永徳子、田巻友一、石川博
    • Organizer
      第53回歯科基礎医学会学術大会・総会
    • Place of Presentation
      長良川国際会議場(岐阜県)
    • Related Report
      2011 Annual Research Report
  • [Presentation] ヒト歯肉由来血管内皮細胞の分離と同定2011

    • Author(s)
      那須優則、中原貴、井出吉昭、富永徳子、田巻友一、石川博
    • Organizer
      第53回歯科基礎医学会学術大会・総会
    • Place of Presentation
      長良川国際会議場(岐阜県)
    • Related Report
      2011 Annual Research Report
  • [Presentation] エックス線CTによる3次元的解析の可能性-解析装置として研究に応用できること-2010

    • Author(s)
      井出吉昭, 中原貴
    • Organizer
      日本歯科大学歯学会研究推進フォーラム
    • Place of Presentation
      日本歯科大学生命歯学部九段ホール(東京)
    • Year and Date
      2010-09-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] Establishment of human uterine gestational choriocarcinoma cell line (NUCC) and its characteristics.2010

    • Author(s)
      Ide Y, Tamaki Y, Tominaga N, Ishiwata I, Kawakami M, Ohyama A, Ishikawa H, Nakahara T
    • Organizer
      第28回 日本ヒト細胞学会学術集会
    • Place of Presentation
      文部科学省研究交流センター(茨城)
    • Year and Date
      2010-08-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] Establishing HGCT cell lines derived from germ cell tumors of human ovary and production of IL-1□, IL-6 and VEGF.2010

    • Author(s)
      Tominaga N, Ide Y, Yasuda M, Suzuki M, Ishiwata I, Nasu M, Ishikawa H, Nakahara T
    • Organizer
      第28回日本ヒト細胞学会学術集会
    • Place of Presentation
      文部科学省研究交流センター(茨城)
    • Year and Date
      2010-08-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] Characterization of endothelial cells from tooth buds of miniature swine.2010

    • Author(s)
      Nasu M, Nakahara T, Ide Y,Tominaga N, Tachibana T, Hashimoto H, Ishikawa H
    • Organizer
      88^<th> General Session & Exhibition of the IADR
    • Place of Presentation
      Centre Convencions Internacional Barcelona(スペイン)
    • Year and Date
      2010-07-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] Engineering of a tooth root/periodontal unit in vitro.2010

    • Author(s)
      Nakahara T, Tamaki Y, Ide Y, Tominaga N, Nasu M, Sato S, Ishikawa H
    • Organizer
      88^<th> Genleral Session & Exhibition of the IADR
    • Place of Presentation
      Centre Convencions Internacional Barcelona(スペイン)
    • Year and Date
      2010-07-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] 再生歯インプラントの実現に向けた歯根・歯周組織ユニットのインビトロ形成と移植評価2010

    • Author(s)
      中原貴, 井出吉昭, 富永徳子, 石川博
    • Organizer
      日本口腔外科学会
    • Place of Presentation
      幕張
    • Related Report
      2011 Final Research Report
  • [Presentation] マウス臼歯歯根形成期におけるヘルトヴィッヒ上皮鞘とその周囲組織の細胞動態の観察2010

    • Author(s)
      鎌田弘明, 井出吉昭, 富永徳子, 中原貴
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      船堀
    • Related Report
      2011 Final Research Report
  • [Presentation] ミニブタ胎児の歯胚由来血管内皮細胞株の血管形成に関する研究2010

    • Author(s)
      那須優則, 中原貴, 井出吉昭, 富永徳子, 石川博
    • Organizer
      歯科基礎医学会
    • Place of Presentation
      船堀
    • Related Report
      2011 Final Research Report
  • [Presentation] エックス線CTによる3次元的解析の可能性-解析装置として研究に応用できること-2010

    • Author(s)
      井出吉昭, 中原貴
    • Organizer
      日本歯科大学歯学会研究推進フォーラム
    • Place of Presentation
      東京
    • Related Report
      2011 Final Research Report
  • [Presentation] ヒト卵巣のGerm cell tumor由来HGCT細胞株の樹立とIL-1β、IL-6、VEGFの産生2010

    • Author(s)
      富永徳子, 井出吉昭, 安田允, 鈴木見奈子, 石渡勇, 那須優則, 石川博, 中原貴
    • Organizer
      日本ヒト細胞学会
    • Place of Presentation
      筑波
    • Related Report
      2011 Final Research Report
  • [Presentation] ヒト子宮由来gestational choriocarcinoma cell line株(NUCC)の樹立とその特徴2010

    • Author(s)
      井出吉昭, 田巻友一, 富永徳子, 石渡勇, 川上未有希, 大山晃弘, 石川博, 中原貴
    • Organizer
      日本ヒト細胞学会
    • Place of Presentation
      筑波
    • Related Report
      2011 Final Research Report
  • [Presentation] ミニブタ胎仔の歯胚由来血管内皮細胞株の血管形成に関する研究2010

    • Author(s)
      那須優則, 中原貴, 井出吉昭, 富永徳子, 石川博
    • Organizer
      第52回歯科基礎医学会学術大会・総会
    • Place of Presentation
      タワーホール船堀(東京)
    • Related Report
      2010 Annual Research Report
  • [Presentation] マウス臼歯歯根形成期におけるヘルトヴィッヒ上皮鞘とその周囲組織の細胞動態の観察2010

    • Author(s)
      鎌田弘明, 井出吉昭, 富永徳子, 中原貴
    • Organizer
      第52回歯科基礎医学会学術大会・総会
    • Place of Presentation
      タワーホール船堀(東京)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 再生歯インプラントの実現に向けた歯根・歯周組織ユニットのインビトロ形成と移植評価2010

    • Author(s)
      中原貴, 井出吉昭, 富永徳子, 石川博
    • Organizer
      第55回日本口腔外科学会総会・学術大会
    • Place of Presentation
      幕張メッセ(千葉)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Observation of Hertwig's epithelial root sheath and surrouding mesenchymal cells during root formation of mouse lower molars.2010

    • Author(s)
      Kamata H., Takamizawa S., Ide Y., Tominaga N., Nakahara T.
    • Organizer
      第116回日本解剖学会総会・全国学術集会
    • Place of Presentation
      パシフィコ横浜(神奈川)
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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