マイクロRNA発現解析に基づいた新しい肺移植後閉塞性細気管支炎治療法の確立
Project/Area Number |
26870458
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
General surgery
Respiratory surgery
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Research Institution | Kagoshima University |
Principal Investigator |
渡辺 有為 鹿児島大学, 医歯(薬)学総合研究科, 客員研究員 (20724199)
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Project Period (FY) |
2014-04-01 – 2015-03-31
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Project Status |
Discontinued (Fiscal Year 2014)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Keywords | 肺移植 / 慢性拒絶反応 / 閉塞性細気管支炎 / 遺伝子治療 / マイクロRNA / メッセンジャーRNA / マイクロアレイ / リアルタイムPCR |
Outline of Annual Research Achievements |
肺移植後慢性拒絶反応による閉塞性細気管支炎に関与する転写調節因子を検索し,新規治療展開への基盤を確立する目的で以下の実験を行った. BALB/Cマウスをドナー,C57BL/6マウスをレシピエントとするMHC完全不適合の組み合わせで,異所性気管移植を行なった.この異所性気管移植モデルにおいては移植後経時的に気管上皮の障害が出現し,線維芽細胞増殖により気管内腔が閉塞されることが明らかになっている.実験群,および対照群は,異所性同種気管移植群:BALB/C → C57BL/6,および異所性同系気管移植群:C57BL/6 → C57BL/6とした.移植後7日目,21日目にマウスを犠牲死させ,移植気管を摘出した. 先ず,移植気管組織からRNAを抽出しマイクロRNA(miRNA),およびメッセンジャーRNA(mRNA)のマイクロアレイ解析を行った.miRNAのマイクロアレイ解析により異所性同種気管移植後21日目において亢進していた3種類の遺伝子,抑制されていた16種類の遺伝子が明らかとなった.これら19種類のmiRNAについてリアルタイムPCRを行い,その発現の程度を定量的に評価したところ,異所性同種気管移植後21日目の群で,miR-204-5pがその他の群と比較して有意に抑制されていることが明らかとなった. 次いで,パスウェイデータベースを使用してmiR-204-5pの標的となるmRNAの探索を行った.この結果とmRNAアレイデータを照合し,発現関係がmiRNAとmRNAで逆となっている遺伝子,つまり亢進している20種類のmRNAが明らかとなった.以上の結果の妥当性はクラスター解析でも確認された. さらに,気管組織の病理組織学的評価(線維芽細胞増殖による気管内腔の閉塞の程度)を行い,miR-204-5pのリアルタイムPCRデータとの関係を解析したところ有意に相関していることが明らかとなった.
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Report
(1 results)
Research Products
(18 results)
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[Journal Article] Successful closure of a tracheocutaneous fistula after tracheostomy using two skin flaps: a case report2015
Author(s)
Watanabe Y, Umehara T, Harada A, Aoki M, Tokunaga T, Suzuki S, Kamimura G, Wakida K, Nagata T, Otsuka T, Yokomakura N, Kariatsumari K, Nakamura Y, Watanabe Y, Sato M.
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Journal Title
Surgical Case Reports
Volume: 1
Issue: 1
Pages: 43-43
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Lymphangioleiomyomatosis in a male2015
Author(s)
Wakida K, Watanabe Y, Kumasaka T, Seyama K, Mitani K, Hiraki T, Kamimura G, Nagata T, Nakamura Y, Sato M.
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Journal Title
The Annals of Thoracic Surgery
Volume: 印刷中
Issue: 3
Pages: 1105-1107
DOI
Related Report
Peer Reviewed
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[Presentation] Lung transplantation for patients with adult cogenital heart disease - Single center experience -2015
Author(s)
Watanabe T, Adachi O, Notsuda H, Watanabe Y, Oishi H, Niikawa H, Matsuda Y, Noda M, Sado T, Sakurada A, Hoshikawa Y, Akiba M, Tatebe S, Sugimura K, Saiki Y, Kondo T, Okada Y
Organizer
The 14th Congress of the Asian Society of Transplantation
Place of Presentation
Suntec Singapore Convention and Exhibition Centre, Singapore
Year and Date
2015-08-23 – 2015-08-26
Related Report
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[Presentation] Lymphogenic skip metastases and adjacent segmental metastases may occur in limited resection for subpleural lung cancer2014
Author(s)
Watanabe Y, Nagata T, Aoki M, Harada A, Suzuki S, Umehara T, Kamimura G, Wakida K, Otsuka T, Yokomakura N, Kariatsumari K, Nakamura Y, Sato M.
Organizer
The 18th Joint meeting of the World Association for Bronchology and Interventional Pulmonology and The International Brochoesophalogy Society
Place of Presentation
Kyoto International Conference Center, Kyoto
Year and Date
2014-04-13 – 2014-04-16
Related Report
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[Presentation] Pleural lymph flows by the ICG fluorescence method with near-infrared camera <A hundred cases experience>2014
Author(s)
Harada A, Nakamura Y, Umehara T, Suzuki S, Kamimura G, Wakida K, Watanabe Y, Aoki M, Nagata T, Otsuka T, Yokomakura N, Kariatsumari K, Sakasegawa K, Yanagi M, Sato M.
Organizer
The 18th Joint meeting of the World Association for Bronchology and Interventional Pulmonology and The International Brochoesophalogy Society
Place of Presentation
Kyoto International Conference Center, Kyoto
Year and Date
2014-04-13 – 2014-04-16
Related Report
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[Presentation] A tumor excision case of castleman disease in pulmonary hilum2014
Author(s)
Aoki M, Otsuka T, Wakida K, Umehara T, Harada A, Kamimura G, Watanabe Y, Nagata T, Yokomakura N, Kariatsumari K, Sakasegawa K, Nakamura Y, Sato M.
Organizer
The 18th Joint meeting of the World Association for Bronchology and Interventional Pulmonology and The International Brochoesophalogy Society
Place of Presentation
Kyoto International Conference Center, Kyoto
Year and Date
2014-04-13 – 2014-04-16
Related Report
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[Presentation] Novel bronchial occlusion method using an Endobronchial Watanabe Spigot for empyema with bronchopleural fistula2014
Author(s)
Nakamura Y, Kariatsumari K, Yokomakura N, Ohtsuka T, Nagata T, Aoki M, Watanabe Y, Wakida K, Harada A, Umehara T, Suzuki S, Sato M.
Organizer
The 18th Joint meeting of the World Association for Bronchology and Interventional Pulmonology and The International Brochoesophalogy Society
Place of Presentation
Kyoto International Conference Center, Kyoto
Year and Date
2014-04-13 – 2014-04-16
Related Report
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[Presentation] Ultrasonic balloon measurement and suitable stenting for airway stenosis2014
Author(s)
Otsuka T, Yanagi M, Yokomakura N, Aoki M, Harada A, Wakida K, Nagata T, Sakasegawa K, Nakamura Y, Suzuki S, Umehara T, Kamimura G, Maeda K, Watanabe Y, Kariatsumari K, Sato M.
Organizer
The 18th Joint meeting of the World Association for Bronchology and Interventional Pulmonology and The International Brochoesophalogy Society
Place of Presentation
Kyoto International Conference Center, Kyoto
Year and Date
2014-04-13 – 2014-04-16
Related Report
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