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がん免疫担当細胞におけるシアル酸受容体シグレック7と9による負の制御機構の解明

Research Project

Project/Area Number 16790196
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Pathological medical chemistry
Research InstitutionNational Institute of Advanced Industrial Science and Technology (2006)
Aichi Cancer Center Research Institute (2004-2005)

Principal Investigator

池原 譲  独立行政法人産業技術総合研究所, 糖鎖医工学研究センター, 主任研究員 (10311440)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2004: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords糖鎖認識 / シアル酸受容体 / 免疫応答活性化 / ドラッグデリバリーシステム / 胃粘膜糖鎖発現 / 遺伝子多型 / 腹膜播種 / がん治療 / シグレック / リポソーム / T細胞 / 抗原提示 / マンノース
Research Abstract

消化器癌に発現してくるシアリルTn(STn)抗原、シアリルルイスa(sL^a)抗原やシアリルルイスx(sL^x)抗原等のシアル酸含有糖鎖の発現は予後不良と相関することが良く知られている。本研究では、腫瘍免疫系でのシグレックの意義を明かにするため、T細胞リンパ腫細胞株Jurkatにシグレック7や9を発現させてその機能解析を行った。これらの分子が、T細胞受容体刺激に対して負の制御をする事、そしてそれはリガンドとなるシアル酸結合が必要である事を、これまでに明らかにした(Ikehara Y et al.,J Biol Chem 241:43117-25,2004)。
腫瘍免疫におけるシグレックの糖鎖認識機能を明らかにする一方で、研究成果をシーズとして研究の展開を行った。その成果の一つとして、糖鎖機能を活用した全く異なるタイプのドラッグデリバリーシステム(DDS)技術基盤の開発が挙げられる。
リポソームをオリゴマンノースで被覆する事で作製した、オリゴマンノース被覆リポソーム(OML)を用いると、封入した薬剤をMφへ特異的に送達することを可能とした。Mφは、リポソーム表面糖鎖の認識によりOMLをすみやかに取り込み、引き続いて起こる活性化によって、領域リンパ組織へ遊走する。腹腔内へ投与した場合には、この遊走先は節外性リンパ組織乳斑であり、腹腔内に生じる癌転移の足がかりとなっている事が知られている部位となる。抗癌剤を封入して投与した場合には、特異的に抗癌剤を当該領域に集積する事ができる。胃癌腹腔内転移マウスモデルを用いて、OMLの薬剤送達効果を検討し腫瘍の進展を評価したところ、このアプローチによって腹腔内転移による腫瘍の進展は十分コントロールでき、胃癌の新しい治療法として有望である事を明らかに出来た(Ikehara Y et al.,Cancer Res 66(17):8740-52,2006)。

Report

(3 results)
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (21 results)

All 2007 2006 2005 2004

All Journal Article (19 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Mice lacking a1,3-fucosyltransferase IX demonstrate disappearance of Lewis x structure in brain and increased anxiety-like behaviors.2007

    • Author(s)
      Kudo T, Fujii T, Ikegami S, Inokuchi K, Takayama Y, Ikehara Y, et al.
    • Journal Title

      Glycobiology. 17・1

      Pages: 1-9

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The development of novel oligomannose-coated liposome-based anticancer drug delivery system to intraperitoneal cancer.2007

    • Author(s)
      Ikehara Y., Kojima N.
    • Journal Title

      Current opinion of Mol. Ther. 9・1

      Pages: 53-61

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Subcellular localization of host erythrocyte membrane components during their asexual growth.2007

    • Author(s)
      Okamura M., Yokoyama N., Takabatake N., Okubo K., Ikehara Y., Igarashi I.
    • Journal Title

      Experimental Parasitology (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Modification of host erythrocyte membranes by trypsin and chymotrypsin treatments and effects on the in vitro growth of bovine and equine babesia parasites.2007

    • Author(s)
      Okamura M., Yokoyama N., Takabatake N., Okubo K., Ikehara Y., Igarashi I.
    • Journal Title

      Journal of Parasitology (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biological significance of isolated tumor cells and micrometastasis in the lymph nodes as evaluated using a green fluorescent protein (GFP)-tagged human gastric cancer cell line.2006

    • Author(s)
      Yokoyama H, Nakanishi H, Kodera Y, Ikehara Y, et al.
    • Journal Title

      Clin Cancer Res 12・2

      Pages: 361-368

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Apical Golgi localization of N,N'-diacetyllactosediamine synthase, β4GalNAc-T3, is responsible for LacdiNAc expression on gastric mucosa.2006

    • Author(s)
      Ikehara Y., et al.
    • Journal Title

      Glycobiology 16・10

      Pages: 777-785

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A Carbohydrate Recognition-Based Drug Delivery and Controlled Release System using Intraperitoneal Macrophages as a Cellular Vehicle.2006

    • Author(s)
      Ikehara Y., et al.
    • Journal Title

      Cancer Res. 66・17

      Pages: 8740-8748

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A polymorphism of C to T substitution at -31IL1B is associated with the risk of advanced gastric adenocarcinoma in a Japanese population.2006

    • Author(s)
      Ikehara-KS., Ikehara Y., et al.
    • Journal Title

      J. Human Genetics 51・11

      Pages: 927-933

    • NAID

      10019380371

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Molecular basis for sensitivity and acquired resistance to gefitinib in HER2 overexpressing human gastric cancer cell lines derived from liver metastasis.2006

    • Author(s)
      Yokoyama H, Ikehara Y, et al.
    • Journal Title

      British J. Cancer. 95・11

      Pages: 1504-1513

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biological significance of isolated tumor cells and micrometastasis in the lymph nodes as evaluated using a green fluorescent protein(GFP)-tagged human gastric cancer line.2006

    • Author(s)
      Yokoyma H, Ikehara Y., et al.
    • Journal Title

      Clin Cancer Res 12(2)

      Pages: 361-368

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Helicobacter pylori-dependent NF-kappa B Activation in Newly Established Mongolian gerbil Gastric Cancer Cell Lines2005

    • Author(s)
      Nozaki K., Tanaka H., Ikehara Y., et al.
    • Journal Title

      cancer Sci. 96(3)

      Pages: 170-175

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mixed gastric and intestinal type metaplasia is formed by cells with dual intestinal and gastric differentiation2005

    • Author(s)
      Niwa T., Ikehara Y., et al.
    • Journal Title

      J.Histochem.Cytochem 53(1)

      Pages: 75-85

    • Related Report
      2005 Annual Research Report 2004 Annual Research Report
  • [Journal Article] Babesia equi and Babesia caballi, Implications of host sialic in erythrocyte infection2005

    • Author(s)
      Okumura M., Ikehara Y., et al.
    • Journal Title

      Exp Parasitol. 110

      Pages: 406-411

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Establishment and characterization of three novel human gastric cancer cell lines with differentiated intestinal phenotype derived from liver metastasis.2005

    • Author(s)
      Nakanishi H., Ikehara Y., et al.
    • Journal Title

      Clip.Exp.Meta. 22

      Pages: 137-147

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Establishment and characterization of a human colonic mucinous carcinoma cell line with predominant goblet-cell differentiation from liver metastasis.2005

    • Author(s)
      Yamachika T, Ikehara Y., et al.
    • Journal Title

      Pathol.Int. 55(9)

      Pages: 550-557

    • NAID

      10019344304

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Helicobacter pylori-dependent NF-kappa B Activation in Newly Established Mongolian gerbil Gastric Cancer Cell Lines2005

    • Author(s)
      Nozaki K., Tanaka H., Ikehara Y., et al.
    • Journal Title

      Cancer Sci. Mar96(3)

      Pages: 170-175

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Lewis and Secretor status and Helicobacter pylori eradication2004

    • Author(s)
      Matsuo K., Ikehara Y., et al.
    • Journal Title

      Epidemiol.Infect. 132

      Pages: 997-1000

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Negative regulation of T cell receptor signaling by Siglec-7 (p70/AIRM) and Siglec-92004

    • Author(s)
      Ikehara Y., Ikehara KS, Paulson JC
    • Journal Title

      J Biol Chem 279(41)

      Pages: 43117-43125

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Growth inhibitory effect of heparin on Babesia parasites.2004

    • Author(s)
      Sabine Bork, Yokoyama N., Ihara Y, et al.
    • Journal Title

      Antimicrobial Agents and Chemotherapy. 48(1)

      Pages: 236-241

    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 免疫誘導のためのリポソーム組成物2005

    • Inventor(s)
      池原 譲, 小島直也, 辻村邦夫
    • Industrial Property Rights Holder
      愛知県, 東海大学
    • Industrial Property Number
      2005-094380
    • Filing Date
      2005-03-29
    • Related Report
      2005 Annual Research Report
  • [Patent(Industrial Property Rights)] 免疫応答システムを利用したドラッグデリバリーシステム2004

    • Inventor(s)
      池原 譲, 小島 直也
    • Industrial Property Rights Holder
      愛知県, 東海大学
    • Industrial Property Number
      2004-076804
    • Filing Date
      2004-03-17
    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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