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TNF-αによる発がんプロモーションとその阻害

Research Project

Project/Area Number 06280245
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionResearch Institute for Clinical Oncology, Saitama Cancer Center

Principal Investigator

藤木 博太  埼玉県立がんセンター, 研究所, 所長兼部長 (60124426)

Co-Investigator(Kenkyū-buntansha) 原 栄一  埼玉県立がんセンター, 研究所・生化学部, 主任研究員 (30164990)
小森 敦正  埼玉県立がんセンター, 研究所・血清ウイルス部, 研究員 (50234901)
岡部 幸子  埼玉県立がんセンター, 研究所・血清ウイルス部, 研究員 (10270604)
末岡 榮三朗  埼玉県立がんセンター, 研究所・血清ウイルス部, 研究員 (00270603)
神津 知子  埼玉県立がんセンター, 研究所 血清ウイルス部, 研究員 (60161874)
菅沼 雅美  埼玉県立がんセンター, 研究所 血清ウイルス部, 研究員 (20196695)
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥28,800,000 (Direct Cost: ¥28,800,000)
Fiscal Year 1996: ¥8,800,000 (Direct Cost: ¥8,800,000)
Fiscal Year 1995: ¥10,000,000 (Direct Cost: ¥10,000,000)
Fiscal Year 1994: ¥10,000,000 (Direct Cost: ¥10,000,000)
Keywordsオカダ酸 / TNF-α / TNF-αトランスジェニックマウス / TPA / 内因性発がんプロモーター / protein phosphatase / 発がん抑制物質 / TNF-αプロセシング / transgenicマウス / tautomycin / ミクロチスチン / ノジュラリン / コードファクター
Research Abstract

従来の化学物質による発がんプロモーションとTNF-αとの関連を明らかにし、一方ではTNF-αがヒト発がんの際に、いろいろな臓器での内因性発がんプロモーターとして作用することを証明する。この結果をもとに、潜在的腫瘍細胞が良性腫瘍へとクローナルに増殖するヒト発がんプロモーションの機構を生化学や分子生物学のレベルで解析し、その阻害の方法を導き出すことを目的とする。
1. ラット肝の発がんプロモーターであるノジュラリンのi.p.投与は、肝にTNF-αmRNAの発現を誘導した。肝には発がんプロモーション活性を示さないTPAのi.p.投与は、肝にTNF-αmRNAを発現しなかった。TNF-αmRNAの発現に発がんプロモーターの臓器特異性がうまく反映されていると思われた。
2. 肺胞II型上皮細胞にTNF-αを発現するトランスジェニックマウスは、間質性肺炎を生じ、ヒトのidiopathic pulmonary fibrosis(IPF)によく類似した病理組織像を示した。しかし、NNKの処理にかかわらず、50週が経過しても、肺腫瘍は生じなかった。
3. 発がんを抑制する化合物につき、TNF-αの産生抑制機構を調べると、発がんプロモーターとレセプターとの相互作用の抑制、TNF-αmRNAの発現の抑制、TNF-αの前駆体が酵素的切断を受ける反応の抑制などいろいろなステップの抑制が含まれていることが見出された。
4. 10個のcanventol類縁化合物につきIPI indexを指標として、蛋白イソプレニール化の阻害を表した。

Report

(3 results)
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] M.Suganuma,H.Fujiki,et al.: "A new process of cancer prevention mediated through inhibition of tumor necrosis factor α expression" Cancer Res.56. 3711-3715 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Fujiki,et al.: "Naturally-derived tumor promoters and inhibitors of carcinogenesis" J.Toxicol-Toxin Reviews. 15(2). 129-156 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.Komori,H.Fujiki,et al.: "Anti-tumor promoting activity of canventol and its synthetic analogs through inhibition of protein isoprenylation" J.Cancer Res.87. 875-881 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Sueka,H.Fujiki,et al.: "Anti-cancer effects of morphine through inhibition of tumour necrosis factor-α release and mRNA expression" Carcinogenesis. 17(11). 2337-2341 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Fujiki,et al.: "Japanese green tea as a cancer preventive in humans" Nutrition Reviews. 54(II). S67-S70 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.K.Verma,H.Fujiki,et al.: "Super-induction of mouse epidermal ornithine decarboxylase activity by repeated 12-O-tetradecanoylphorbol-13 acetate treatmnt" Mol.Cell.Biochem.155. 139-151 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] C.Taylor,H.Fujiki,et al.: "Inhibition of protein phosphatase 2A by cyclic peptides modelled on the microcystin ring" BioMed.Chem.Lett.6. 2113-2116 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] R.J.Quinn,H.Fujiki,et al.: "Inhibition of protein phosphatases 2A by cantharidin analogues" BioMed.Chem.Lett.6. (in press) (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Fujiki,et al.: "Toxic Microcystis" CRC Press, 203-232 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Fujiki,et al.: "Molecular Approaches to Food Safety Issues Involving Toxic Microorganisms" Molecular Approaches to Food Safety Issues Involving Toxic Microorganisms, 367-381 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] E.Sueoka,H.Fujiki,et al.: "Harmful and Toxic Algal Blooms" Proceedings of the 7th International-Conference on Toxic Phytoplankton, 483-486 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Yamane, et al.: "Inhibition of N-methyl-N'-nitro-N-nitrosoquanidine-induced carcinogenesis by (-)-epiqallocatechin gallate in the rat glandularstomach" Cancer Res.55. 2081-2084 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] E. Sueoka, et al.: "Activation of protein kinase C by mycobacterial cord factor, trehalose 6-monomycolate, resulting in tumor necrosis factor-α" Jpn. J. Cancer Res.86. 749-755 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] P. G. Foiles, et al.: "Inhibition of PKC and PKA by chemopreventive organoselenium compounds" Int. J. Oncol.7. 685-690 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Suganuma, et al.: "Tautomycin : an inhibitor of protein phosphatases 1 and 2A but not a tumor promoter on mouse skin and in rat glandular stomach" J. Cancer Res. Clin. Oncol.121. 621-627 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] W. Troll, et al.: "Inhibition of protein phosphatases (Okadaic acid and tautomycin) block sea urchin development" Biol. Bull.189. 201 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H. Ueyama, et al.: "Specific protein interacting with a tumor promoter, debromoaplysiatoxin, in bovine serum is α_1-acid glycoprotein" J. Cancer Res. Clin. Oncol.121. 211-218 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] H. Fujiki, et al.: "1st International Gastric Cancer Congress" M. Nishi, H. Sugano and T. Takahashi, 7 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] E. Sueoka, et al.: "Proceedings of International Symposium on Ciquatera and Marine Natural Products" Y. Hokama, P. Scheuer, and T. Yasumoto, 13 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Fujiki,H.and Suganuma,M.: "Tumor necrosis factor-α,a new tumor promoter,engendered by biochemical studies of okadaic acid" J.Biochem.115. 1-5 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Fujiki,H.and Suganuma,M.,et al.: "A new tumor promotion pathway and its inhibitors" Cancer Detection and Prevention. 18. 1-7 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Nishiwaki,R.Fujiki,H.,et al.: "Two significant aspects of microcystin-LR:specific binging and liver specificity" Cancer Lett.83. 283-289 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Ohta,T.,Fujiki,H.,et al.: "Nodularin,a potent inhibitor of protein phosphatases 1 and 2A,is a new envitonmental carcinogen in male F344 rat liver" Cancer Res.54. 6402-6406 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Kiguchi,K.,Fujiki,H.et al.: "Differential induction of apoptosis in human breast tumor cells by okadaic acid and related inhibitors of protein phosphatases 1 and 2A" Cell Growth & Differentiation. 5. 995-1004 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yuasa,H.,Sugawara,M.,et al.: "Increase of labeling indices in gastrointestinal mucosae of mice and rats by compounds of the okadaic acid type" J.Cancer Res.Clin.Oncol.120. 208-212 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Noshida,H.,Suganuma,M.,et al.: "Inhibitory effects of (-)-epigallocatechin gallate on spontaneous hepatoma in C3H/HeNCri mice and human hepatoma-derived PLC-PRF-5 cel" Jpn.J.Cancer Res.85. 221-225 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yokomatsu,H.,Suganuma,M.,et al.: "A new chemotherapeutic and chemopreventive agent for pancreatic cancer" Pancreas. 2. 526-530 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Sugawara,M.Fujiki,H.,et al.: "Anti-mutagenesis and Anti-carcinogenesis Mechanisms:III:Mechanisms of action of new anti-tumor promoters" Plenum Press,New York, 317-323 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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