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2010 Fiscal Year Annual Research Report

薬物輸送タンパク質の多型情報に基づく分子標的化学療法薬の個別化治療戦略

Research Project

Project/Area Number 20390161
Research InstitutionKumamoto University

Principal Investigator

丸山 徹  熊本大学, 薬学部, 教授 (90423657)

Keywordsα_1-酸性糖タンパク質 / バリアント / リガンド結合 / X線結晶構造解析
Research Abstract

α_1-酸性糖タンパク質(AGP)の薬物結合サイトのトポロジー及びvariant間における結合選択機構の解明を目的としてAGP/薬物複合体のX線結晶構造解析を行った。
1.A体については、既に構造解析された薬物(アミトリプチリン、クロルプロマジン)と類似した骨格を持つイミプラミン及びチオリダジンの複合体結晶構造を決定した。イミプラミンの芳香環部分は、既存の結合部位で認識されていたのに対し、チオリダジンの芳香環部分は、この結合部位の他に、Phe32、Ser114といった新たな部位で認識されていることが分かった。A体は、今回明らかになったチオリダジン結合部位を含めた領域で、Phe49、Arg90、Phe112残基を中心とした相互作用を形成し、類似骨格を持つ薬物を認識することが明らかとなった。
2.F1*S体については、薬物結合様式の解明に向け、まずF1*S体のアポ体のX線結晶構造解析を行った。その結果、これまでの報告とは異なる新たな結晶系で、F1*S体のアポ体構造を決定した。
3.AGPと内因性物質PAFの結合を、誘起CDスペクトルを用いた置換実験により確認した。さらに、AGP/PAF複合体の構造解析を行ったところ、A体の結合ポケット内には、PAFの代わりに沈殿剤PEGの結合が推察されたが、F1*S体については、非対称単位3分子中の1分子でPEGとは異なる電子密度が観察できた。現在、PAFの原子座標を用いてCNS、PHENIXによる構造精密化を進めている。
以上のように、本研究では新たなA体/薬物複合体のX線結晶構造解析により、A体における類似骨格を持つ薬物の認識部位をより詳細にマッピングすることに成功した。また、F1*S体と薬物あるいは内因性物質との複合体の構造解析に向けた基盤を構築した。

  • Research Products

    (24 results)

All 2011 2010 Other

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (7 results)

  • [Journal Article] Vitamin d receptor activator reduces oxidative stress in hemodialys is patients with secondary hyperparathyroidism.2011

    • Author(s)
      Tanaka M,, Tokunaga K,, Komaba H,, Itoh K,, Matsushita K, Watanabe H,, Kadowaki D, Maruyama T,, Otagiri M,, Fukagawa M.
    • Journal Title

      Ther Apher Dial.

      Volume: 15 Pages: 161-8

    • Peer Reviewed
  • [Journal Article] New insight into the redox properties of uremic solute indoxyl sulfate as a pro- and anti-oxidant.2011

    • Author(s)
      Miyamoto Y,, Watanabe H,, Otagiri M,, Maruyama T.
    • Journal Title

      Ther Apher Dial.

      Volume: 15 Pages: 129-31

    • Peer Reviewed
  • [Journal Article] An autoantibody against N(ε)-(carboxyethyl)lysine(CEL) : Possible involvement in the removal of CEL-modified proteins by macrophages.2011

    • Author(s)
      Mera K,, Nagai R,, Takeo K, Izumi M,, Maruyama T,, Otagiri M.
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Structural insights into differences in drug binding selectivity between two forms of human{alpha}1-acid glycoprotein genetic variants, the A and F1*S forms.2011

    • Author(s)
      Nishi K,, Ono T,, Nakamura T,, Fukunaga N,, Izumi M,, Watanabe H,, Suenaga A,, Maruyama T,, Yamagata Y,, Curry S, Otagiri M.
    • Journal Title

      J Biol Chem.

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Organic anion transporters play an important role in the uptake of p-cresyl sulfate, a uremic toxin, in the kidney.2011

    • Author(s)
      Miyamoto Y, Watanabe H, Noguchi T, Kotani S, Nakajima M, Kadowaki D, Otagiri M, Maruyama T.
    • Journal Title

      Nephrol Dial Transplant.

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Fluid Resuscitation with Hemoglobin Vesicles Prevents Escherichia coli Growth via Complement Activation in a Hemorrhagic Shock Rat Model.2011

    • Author(s)
      Taguchi K, Ogaki S, Watanabe H, Kadowaki.D, Sakai H, Kobayashi K, Horinouchi H, Maruyama T, Otagiri M.
    • Journal Title

      J Pharmacol Exp Ther.

      Volume: 337 Pages: 201-8

    • Peer Reviewed
  • [Journal Article] Repeated injection of high doses of hemoglobin-encapsulated liposomes (hemoglobin vesicles) induces accelerated blood clearance in a hemorrhagic shock rat model.2011

    • Author(s)
      Taguchi K, Iwao Y, Watanabe H, Kadowaki D, Sakai H, Kobayashi K, Horinouchi H, Maruyama T, Otagiri M.
    • Journal Title

      Drug Metab Dispos.

      Volume: 39 Pages: 484-9

    • Peer Reviewed
  • [Journal Article] Superior plasma retention of a cross-linked human serum albumin dimer in nephrotic rats as a new type of plasma expander.2010

    • Author(s)
      Taguchi K, Urata Y, Anraku M, Watanabe H, Kawai K, Komatsu T, Tsuchida E, Maruyama T, Otagiri M.
    • Journal Title

      Drug Metab Dispos.

      Volume: 38 Pages: 2124-9

    • Peer Reviewed
  • [Journal Article] Alteration in the pharmacokinetics of hemoglobin-vesicles in a rat model of chronic liver cirrhosis is associated with Kupffer cell phagocyte activity.2010

    • Author(s)
      Taguchi K, Miyasato M, Watanabe H, Sakai H, Tsuchida E, Horinouchi H, Kobayashi K, Maruyama T, Otagiri M.
    • Journal Title

      J Pharm Sci.

      Volume: 100 Pages: 775-83

    • Peer Reviewed
  • [Journal Article] Hepatically-metabolize and -excreted artificial oxygen carrier hemoglobin vesicles, can be safely used under conditions of hepatic impairment.2010

    • Author(s)
      Taguchi K, Miyasato M, Ujihira H, Watanabe H, Kadowaki D, Sakai H, Tsuchida E, Horinouchi H, Kobayashi K, Maruyama T, Otagiri M.
    • Journal Title

      Toxicol Appl Pharmacol.

      Volume: 248 Pages: 234-41

    • Peer Reviewed
  • [Journal Article] Albumin fusion of thioredoxin-the production and evaluation, of its biological activity for potential therapeutic applications.2010

    • Author(s)
      Ikuta S, Chuang VT, Ishima Y, Nakajou K, Furukawa M, Watanabe H, Maruyama T, Otagiri M.
    • Journal Title

      J Control Release.

      Volume: 147 Pages: 17-23

    • Peer Reviewed
  • [Journal Article] Construction of an expression system for human alpha(1)-acid glycoprotein in E.coli : The roles of oligosaccharide moieties in structural and functional properties.2010

    • Author(s)
      Nishi K, Fukunaga N, Ono T, Akuta T, Yumita N, Watanabe H, Kadowaki D, Suenaga A, Maruyama T, Otagiri M.
    • Journal Title

      Drug Metab Pharmacokinet.

      Volume: 25 Pages: 200-7

    • Peer Reviewed
  • [Journal Article] One-step preparation of S-nitrosated human serum albumin with high biological activities.2010

    • Author(s)
      Ishima Y, Hiroyama S, Kragh-Hansen U, Maruyama T, Sawa T, Akaike T, Kai T, Otagiri M.
    • Journal Title

      Nitric Oxide.

      Volume: 23 Pages: 121-7

    • Peer Reviewed
  • [Journal Article] The uremic solute indoxyl sulfate acts as an antioxidant against superoxide anion radicals under normal-physiological conditions.2010

    • Author(s)
      Miyamoto Y, Iwao Y, Tasaki Y, Sato K, Ishima Y, Watanabe H, Kadowaki D, Maruyama T, Otagiri M.
    • Journal Title

      FEBS Lett.

      Volume: 584 Pages: 2816-20

    • Peer Reviewed
  • [Journal Article] Genetically engineered mannosylated-human serum albumin as a versatile carrier for liver-selective therapeutics.2010

    • Author(s)
      Hirata K, Maruyama T, Watanabe H, Maeda H, Nakajou K, Iwao Y, Ishima Y, Katsumi H, Hashida M, Otagiri M.
    • Journal Title

      J Control Release.

      Volume: 145 Pages: 9-16

    • Peer Reviewed
  • [Journal Article] Receptor-mediated uptake of human alpha1-acid glycoprotein into liver parenchymal cells in mice.2010

    • Author(s)
      Matsumoto K, Nishi K, Kikuchi M, Watanabe H, Nakajou K, Komori H, Kadowaki D, Suenaga A, Maruyama T, Otagiri M.
    • Journal Title

      Drug Metab Pharmacokinet.

      Volume: 25 Pages: 101-7

    • Peer Reviewed
  • [Journal Article] Pharmacokinetic properties of hemoglobin vesicles as a substitute for red blood cells.

    • Author(s)
      Taguchi K,, Maruyama T,, Otagiri M.
    • Journal Title

      Drug Metab Rev.

      Volume: (In press)

    • Peer Reviewed
  • [Presentation] α_1-酸性糖タンパク質の薬物結合部位に関する構造生物学的研究2010

    • Author(s)
      和泉実代子、中村照也、小野知実、渡邊博志、山縣ゆり子、小田切優樹、丸山徹
    • Organizer
      第26回日本薬学会九州支部大会
    • Place of Presentation
      長崎大学
    • Year and Date
      20101211-20101212
  • [Presentation] alfa1-acid glycoprotein enhances the expression of hemoglobin scavenge receptor CD163 through the activation of TLR4 signaling2010

    • Author(s)
      小森久和, 渡邊博志, 首藤剛, 丸山徹, 小田切優樹
    • Organizer
      第4回次世代を担う若手医療薬科学シンポジウム
    • Place of Presentation
      東京大学
    • Year and Date
      20101127-20101128
  • [Presentation] Involvement of hemoglobin b-chain on plasma membrane in uptake of human al-acid glycoprotein into liver2010

    • Author(s)
      Komori H, Uehara N, Nishi K, Watanabe H, Maruyama T, Otagiri M
    • Organizer
      The Pharmaceutical Sciences World Congress 2010
    • Place of Presentation
      New Orleans, LA, USA
    • Year and Date
      20101115-20101118
  • [Presentation] X-RAY CRYSTALLOGRAPHIC STUDY OF HUMAN ALPHA1-ACID GLYCOPROTEIN AND DRUG COMPLEX2010

    • Author(s)
      Miyoko Izumi., Tomomi Ono, Teruya Nakamura, Koji Nishi, Hiroshi Watanabe, Toru Maruyama, Yuriko Yamagata, Masaki Otagiri
    • Organizer
      日本薬物動態学会第25回年会
    • Place of Presentation
      大宮ソニックシティ
    • Year and Date
      20101007-20101009
  • [Presentation] alfa1-酸性糖タンパク質によるCD163の発現誘導2010

    • Author(s)
      小森久和, 渡邊博志, 首藤剛, 丸山徹, 小田切優樹
    • Organizer
      第35回西日本薬剤学研究会
    • Place of Presentation
      九重共同研修所
    • Year and Date
      20100917-20100918
  • [Presentation] Hepatic uptake of alfa1-acid glycoprotein through hemoglobin b-chain-mediated endocytic pathway2010

    • Author(s)
      Komori H, Uehara N, Nishi K, Watanabe H, Maruyama T, Otagiri M
    • Organizer
      9^<th> International ISSX meeting
    • Place of Presentation
      Istanbul, Turkey Convention and Exhibition Center-Harbiye
    • Year and Date
      20100904-20100908
  • [Presentation] ヒトα_1-酸性糖タンパク質/薬物複合体のX線結晶構造解析2010

    • Author(s)
      和泉実代子、中村照也、小野知実、渡邊博志、山縣ゆり子、小田切優樹、丸山徹
    • Organizer
      日本薬剤学会第25年会
    • Place of Presentation
      あわぎんホール徳島郷土文化会館
    • Year and Date
      20100512-20100514

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Published: 2012-07-19  

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