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2012 Fiscal Year Annual Research Report

脱細胞化したマトリックスへのヒト人工心筋細胞の再播種によるバイオ人工心臓の作成

Research Project

Project/Area Number 23659672
Research InstitutionOkayama University

Principal Investigator

佐野 俊二  岡山大学, 医歯(薬)学総合研究科, 教授 (50235438)

Keywordsバイオ人工心臓 / 人工心筋細胞 / 細胞外マトリックス
Research Abstract

重症心不全に対する治療法として、機械的人工心臓の埋め込みや脳死心臓移植が目下のところ主流の先端医療であるが、前者は高額な医療費による経済・財政的負担、後者は生涯通じての免疫抑制剤の投与や様々な副作用による多臓器障害が報告されている。自家細胞用いたバイオ人工心臓の作成により、これらの問題点は着実に解決されると予想されるため、本研究目的は、①ヒト心臓内幹細胞用いた人工ヒト心筋細胞作成法の樹立。②ラット全心臓の脱細胞化による細胞外マトリックスで形成された足場の作成。③脱細胞化した心臓への人工ヒト心筋細胞及びヒト血管内皮細胞の再播種化。④再構築した自家細胞由来バイオ人工心臓の機能解析及び移植検討。
脱細胞化した心臓は左房及び上行大動脈に18ゲージのカニューレを挿入し心尖部まで電気刺激リードを入れる。370C、5%CO2で酸素化された細胞培地を心房内流量20mL/min、冠動脈流量6mL/minで24時間心臓内に栄養を入れる。前・後負荷は圧センサー介してそれぞれ1-12mmHgと1-60mmHgに制御し、ペーシングリード用いて1Hz, 5-20V, 2msで周期的に心外膜側より刺激した。
細胞は5x107個の精製したヒト人工心筋細胞と5x107個のヒト心臓内幹細胞をmicroLのPBSに希釈し、27ゲージの針使用し5回に分けて左心室内に注入する。回路内を密閉後、約8から10日間持続潅流させることで三次元培養を行った。
これまでの研究実施期間中において、遺伝子組み変えをしていないヒト心臓内幹細胞を中心とした再播種潅流実験を主体に研究を進め、有効なヒト幹細胞の脱細胞化した細胞外マトリックスへの再播種に成功した。
今後、GATA4/Tbx5/Mef2cを遺伝子導入した人工成熟心筋細胞を大量に培養し、より作業能が高い左室心筋の三次元レベルでの再構築を目指していく。

  • Research Products

    (34 results)

All 2013 2012 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (17 results) (of which Invited: 16 results) Book (5 results) Remarks (1 results)

  • [Journal Article] Pediatric perfusion in Japan : 2010 practice survey2012

    • Author(s)
      Itoh H, Sano S, Pouard P
    • Journal Title

      Perfusion

      Volume: 27 Pages: 72-77

    • Peer Reviewed
  • [Journal Article] -rAtrionatriuretic Peptide improves left ventricular function after myocardial global ischemia-reperfusion in hypoxic heartseperfusion in hypoxic hearts2012

    • Author(s)
      Fujii Y, Ishino K, Tomii T, Kanamitsu H, Fujita Y, Mitsui H, Sano S
    • Journal Title

      Artificial Organs

      Volume: 36 Pages: 379-386

    • Peer Reviewed
  • [Journal Article] Transcatheter Closure of a Large Atrial Septal Defect under Microprobe Transesophageal Echocardiographic Guidance2012

    • Author(s)
      Taniguchi M, Akagi T, Kijima Y, Ito H, Sano S
    • Journal Title

      Echocardiography

      Volume: 29 Pages: E94-E96

    • Peer Reviewed
  • [Journal Article] Transcatheter closure of atrial septal defect in a geriatric population2012

    • Author(s)
      Nakagawa K, Akagi T, Taniguchi M, Kijima Y, Goto K, Kusano KF, Itoh H, Sano S
    • Journal Title

      Catheterization and Cardiovascular Interventions

      Volume: 80 Pages: 84-90

    • Peer Reviewed
  • [Journal Article] Extracorporeal membrane oxygenation following pediatric cardiac surgery: development and outcomes from a single-center experience2012

    • Author(s)
      Itoh H, Ichiba S, Ujike Y, Kasahara S, Arai S, Sano S
    • Journal Title

      Perfusion

      Volume: 27 Pages: 225-229

    • Peer Reviewed
  • [Journal Article] Usefulness of the right parasternal approach to evaluate the morphology of atrial septal defect2012

    • Author(s)
      Watanabe N, Taniguchi M, Akagi T, Tanabe Y, Toh N, Kusano K, Ito H, Koide N, Sano S
    • Journal Title

      Journal of the American Society of Echocardiography

      Volume: 25 Pages: 376-382

    • Peer Reviewed
  • [Journal Article] Atrioventricular valve repair for patient with heterotaxy syndrome and a functional single ventricle2012

    • Author(s)
      Sano S, Fujii Y, Arai S, Kasahara S, Tateishi A
    • Journal Title

      Seminars in thoracic and cardiovascular surgery, Pediatric cardiac surgery annual

      Volume: 15 Pages: 88-95

    • Peer Reviewed
  • [Journal Article] Editorial Comment: Does the shunt type determine midterm outcomes after a Norwood operation?2012

    • Author(s)
      Sano S
    • Journal Title

      European Journal of Cardio-thoracic Surgery

      Volume: 42 Pages: 216-217

    • Peer Reviewed
  • [Journal Article] Outcomes of one-lung fontan operation: a retrospective multicenter study in Japan2012

    • Author(s)
      Fujii Y, Sano S, Asou T, Imoto Y, Oshima Y, Kawasaki S, Kishimoto H, Sakamoto K, Maeda M, Yamagishi M, Matsuo K
    • Journal Title

      Annals of Thoracic Surgery

      Volume: 94 Pages: 1275-1280

    • Peer Reviewed
  • [Journal Article] Japanese congenital heart surgery is almost the same level of Europe and North America2012

    • Author(s)
      Sano S
    • Journal Title

      Nihon Geka Gakkai Zasshi

      Volume: 113 Pages: 288-291

    • Peer Reviewed
  • [Journal Article] Medetomidine, an α2-adrenergic agonist, activates cardiac vagal nerve through modulation of baroreflex control2012

    • Author(s)
      Shimizu S, Akiyama T, Kawada T, Sata Y, Mizuno M, Kamiya A, Shishido T, Inagaki M, Shirai M, Sano S, Sugimachi M
    • Journal Title

      Circulation Journal

      Volume: 76 Pages: 152-159

    • Peer Reviewed
  • [Presentation] Sano Operation2013

    • Author(s)
      Sano S
    • Organizer
      9th International Congress of Update in Cardiology and Cardiovascular Surgery
    • Place of Presentation
      Antalya
    • Year and Date
      20130321-20130321
    • Invited
  • [Presentation] What's new in A-V repair?2013

    • Author(s)
      Sano S
    • Organizer
      9th International Congress of Update in Cardiology and Cardiovascular Surgery
    • Place of Presentation
      Antalya
    • Year and Date
      20130321-20130321
    • Invited
  • [Presentation] Tell us far more than norwood2013

    • Author(s)
      Sano S
    • Organizer
      9th International Congress of Update in Cardiology and Cardiovascular Surgery
    • Place of Presentation
      Antalya
    • Year and Date
      20130321-20130321
    • Invited
  • [Presentation] My concept in postoperative care for pediatric cardiac surgical patient: Milrinone as a sole cardiac drug2013

    • Author(s)
      Sano S
    • Organizer
      The Society of Thoracic Surgeons of Thailand 27th Annual Meeting
    • Place of Presentation
      Bangkok
    • Year and Date
      20130111-20130111
    • Invited
  • [Presentation] Recent development of neonatal heart surgery2012

    • Author(s)
      Sano S
    • Organizer
      4th National Congress of Cardiovascular and Thoracic Surgery
    • Place of Presentation
      Hanoi
    • Year and Date
      20121122-20121122
    • Invited
  • [Presentation] Management of atrioventricular valve regurgitaion in single ventricle repair2012

    • Author(s)
      Sano S
    • Organizer
      22nd Annual Congress of the Association of Thoracic and Cardiovascular Surgeons of ASIA
    • Place of Presentation
      Kota Kinabalu
    • Year and Date
      20121115-20121115
    • Invited
  • [Presentation] Management of complex coronary problems in ASO2012

    • Author(s)
      Sano S
    • Organizer
      22nd Annual Congress of the Association of Thoracic and Cardiovascular Surgeons of ASIA
    • Place of Presentation
      Kota Kinabalu
    • Year and Date
      20121115-20121115
    • Invited
  • [Presentation] Mitral valve repair in children2012

    • Author(s)
      Sano S
    • Organizer
      22nd Annual Congress of the Association of Thoracic and Cardiovascular Surgeons of ASIA
    • Place of Presentation
      Kota Kinabalu
    • Year and Date
      20121115-20121115
    • Invited
  • [Presentation] Repair of ebstein's anomaly in neonates and small infants: inpact of right ventricle exclusion2012

    • Author(s)
      Sano S, Kasahara S, Fujii Y, Arai S
    • Organizer
      26th EACTS Annual Meeting
    • Place of Presentation
      Barcelona
    • Year and Date
      20121027-20121027
    • Invited
  • [Presentation] Hypoplastic Left Heart Syndrome: from stem cell therapy to new clinical pathways2012

    • Author(s)
      Sano S
    • Organizer
      Wisconsin小児病院での講演
    • Place of Presentation
      Milwaukee
    • Year and Date
      20121004-20121004
    • Invited
  • [Presentation] Innovation cross the Ocean2012

    • Author(s)
      Sano S
    • Organizer
      Wisconsin小児病院での講演
    • Place of Presentation
      Milwaukee
    • Year and Date
      20121004-20121004
    • Invited
  • [Presentation] Hypoplastic Left Heart Syndrome: from stem cell therapy to new clinical pathways2012

    • Author(s)
      Sano S
    • Organizer
      Grand Rounds UW Pediatric Cardiac Surgery
    • Place of Presentation
      WIsconsin
    • Year and Date
      20121001-20121001
    • Invited
  • [Presentation] Surgical treatment of congenital mitral valve disease2012

    • Author(s)
      Sano S
    • Organizer
      2012 AATS MITRAL CONCLALVE WORK SHOP
    • Place of Presentation
      軽井沢
    • Year and Date
      20120915-20120915
  • [Presentation] Hybrid procedure in congenital heart disease2012

    • Author(s)
      Sano S
    • Organizer
      China Heart Congress 2012
    • Place of Presentation
      Beijing
    • Year and Date
      20120809-20120809
    • Invited
  • [Presentation] Imagination and innovation cross the ocean -from Sano Operation to stem cell therapy2012

    • Author(s)
      Sano S
    • Organizer
      The 22nd Annual Robert E. Gross Memorial Lecture
    • Place of Presentation
      Boston
    • Year and Date
      20120606-20120606
    • Invited
  • [Presentation] RV-PA shunt as a first stage palliation for hypoplastic left heart syndrome -Recent Evolution-2012

    • Author(s)
      Sano S
    • Organizer
      The 4th Congress of Asia-Pacific Pediatric Cardiac Society
    • Place of Presentation
      Taipei
    • Year and Date
      20120404-20120404
    • Invited
  • [Presentation] Congenitally corrected TGA concept and clinical profile2012

    • Author(s)
      Sano S
    • Organizer
      The 4th Congress of Asia-Pacific Pediatric Cardiac Society
    • Place of Presentation
      Taipei
    • Year and Date
      20120404-20120404
    • Invited
  • [Book] Clinical Engineering2012

    • Author(s)
      佐野俊二
    • Total Pages
      151-159
    • Publisher
      評論科学社
  • [Book] 日本外科学会雑誌2012

    • Author(s)
      佐野俊二
    • Total Pages
      288-291
    • Publisher
      日本外科学会
  • [Book] 先端医療シリーズ43 循環器疾患の最新医療2012

    • Author(s)
      佐野俊二
    • Total Pages
      137-139
    • Publisher
      先端医療技術研究所
  • [Book] 循環器専門医2012

    • Author(s)
      佐野俊二
    • Total Pages
      162-166
    • Publisher
      日本循環器学会
  • [Book] 新・心臓病診療プラクティス18 大人になった先天性心疾患2012

    • Author(s)
      佐野俊二
    • Total Pages
      531-532
    • Publisher
      文光堂
  • [Remarks] 岡山大学心臓血管外科

    • URL

      http://okayama-u-cvs.jp/

URL: 

Published: 2014-07-24  

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