• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Experimental radiology for prevention and control of metastasis

Research Project

Project/Area Number 62480237
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Radiation science
Research InstitutionUniversity of Tokyo

Principal Investigator

SUZUKI Norio  University of Tokyo, Faculty of Medicine, Professor, 医学部, 教授 (10010050)

Co-Investigator(Kenkyū-buntansha) SUZUKI Shozo  University of Tokyo, Institute of Medical Science, Research Associate, 医科学研究所, 助手 (30012743)
TANGE Tuyoshi  University of Tokyo, Faculty of Medicine, Lecturer, 医学部, 講師 (10107667)
HARII Kiyonori  University of Tokyo, Faculty of Medicine, Professor, 医学部, 教授 (50111539)
MAJIMA Hideyuki  University of Tokyo, Faculty of Medicine, Research Associate, 医学部, 助手 (60165701)
SAKAI Kazuo  University of Tokyo, Faculty of Medicine, Research Associate, 医学部, 助手 (40153837)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥5,900,000 (Direct Cost: ¥5,900,000)
Fiscal Year 1988: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1987: ¥4,400,000 (Direct Cost: ¥4,400,000)
KeywordsPrevention and control of metastasis / CTCR assay / X-rays / neutrons / murine tumors / dose fractionation / OK432 / 放射線 / CTCR(腫瘍細胞遊出率)
Research Abstract

The present study aimed to obtain basic infomaiton, which could be useful in clinical situation. The processes of hematogenous metastasis can be divided into three steps,i.e., tumor cell release from the primary into the blood circulation, transportation, arrest and growth at the secondary site. All of these steps are important and have to be considered in the study for prevention and treatment of metastases.
In the first year, we studied effect of neutron irradiation of local tumors on clonogenic tumor cell release and metastasis formation. The results indicated neutron suppressed clonogenic tumor cell release and metastasis more effectively than X-rays. In the current year, the effect of intratumoral injection of OK432 on metastasis formation was investigated using various tumor systems including immunogenic or nonimmunogenic. Only intratumoral injection was effective in nonimmunogenic tumor systems although either i.p or i.m./s.c. in the opposite leg to the inoculated tumor was aslo effective in immunogenic tumor systems.
The suppression of lung metastasis formation by intratumoral injection of OK-432 was paralleled with the reduction of clonogenic tumor cell release into the blood circulation.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Suzuki,N.: Radiat.Res.1. 269 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki,N.: Radiat.Med.5. 801-803 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki,N.: In Rodent Tumor Models in Experimental Cancer Therapy. 95-96 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: "Tumor blood perfusion and clonogenic tumor cell release in metastasis." Radiation Research. 1. 269 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: "Effect of low doses of whole body irradiation on spontaneous lung metastasis of NFSA2ALMI mouse tumors." Radiation Medicine. 5. 801-803 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: "A new metastasis system derived from a mouse fibrosarcoma(NFSa) of spontaneous origin and its "clonogenic" tumor-cell-release rate."

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: "Metastatic potential of transplantable SqIISlml carcinoma of WHT/Ht mouse."

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: "Suppression of metastasis from mouse leg tumors by local irradiation and injection of OK432."

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suzuki, N.: Clonogenic tumor cell release assay and its applicaiton to tumor biology In "Rodent Tumor Models in Experimental Cancer Therapy". Pergamon Press, New York., 95-96 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] N.Suzuki: Proceedings of the 8th International Congress of Radiat.Res.1. 269 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] N.Suzuki: Radiat.Med.5. 801-803 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Y.Kobayashi: Jpn.J.Cancer Res.78. 763-766 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] L.E.Gerweck: Radiat.Res.112. 365-373 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] K.Sakai: Radiat.Res.110. 311-320 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] K.Sakai: Radiat.Res.1. 152 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] N.Suzuki;R.F.Kallman;ED.: Clonogenic Tumor Cell Release Assay and Its Application to Tumor Biology.IN Rodent Tumor Models in Experimental Cancer Therapy.95-96 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] K.Sakai: J.Radiat.Res.28. 92 (1987)

    • Related Report
      1987 Annual Research Report

URL: 

Published: 1987-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi