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Studies on the Functions, Growth Regulation, and Genetic Phenotypes of Cloned NK Cells.

Research Project

Project/Area Number 60570226
Research Category

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

Allocation TypeSingle-year Grants
Research Field Immunology
Research InstitutionJichi Medical School

Principal Investigator

MINATO Nagahiro  Jichi Medical School, 医学部, 講師 (40137716)

Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1986: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1985: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsCloned NK cells / T cell receptor genes / interleukin 2 / インターロイキン2レセプター
Research Abstract

The differentiation, growth regulation, and recognition mechanism of LGL (NK) were studied using murine cloned LGL lines.
1. Analysis of T cell receptor (TCR) genes: Southern blot analysis of DNA from LGL clones using <alpha> , <beta> , and <gamma> chain genes of TCR indicated that all of the lines had rearranged TCR genes. In most of LGL clones, mRNA for <alpha> , <beta> , and <gamma> chains were also detected. It was thus indicated that at least some of LGL definitely belonged to T cell lineage. The <beta> gene rearrangement patterns of lines, however, showed no correlation with the cytotoxic spectrum of them, suggesting that <alpha> <beta> complex of TCR was not involved in the recognition of tumor cells by these cells as opposed to T cells. Since some of LGL clones lacking <gamma> chain mRNA showed typical NK activity, it was also unlikely that <gamma> chain was involved in the recognition. Recently, it has been reported that some of human NK clones did express the second TCR, <gamma> <delta> complex. Although it is rather unlikely that such receptors are involved in NK recognition, the finding is certainly important in terms of NK cell differentiation, and is under the inrestigation in our murine LGL clones.
2. Analysis of IL 2 receptor (R) : All of the LGL lines were dependent on IL 2 for The persistent growth was obtained by the co-presence of macrophages (M <phi> ) or IL 1. Analysis of IL 2R by <^(125)I> -IL 2 binding assay indicated that the expression of high affinity IL 2R tended to decline with IL 2 alone, and that it was maintained in the presence of IL 2 and M <phi> . The results suggested that M <phi> played significant roles in the regulation of growth of LGL, most likely by maintaining the expression of functional IL 2R on them. Based on these findings, further investigations on the early differentiation as well as tumor recognition mechanism of LGL are now in the progress.

Report

(1 results)
  • 1986 Final Research Report Summary
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Nagahiro Minato;Takashi Amagai;Junji Yodoi;Tibor Diamanstein;Shogo Kano: The Journal of Experimental Medicine. 162. 1161-1181 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] T.Uchiyama;M.MaedaJ.Yodoi;K.Teshigawara;T.Nikaido;K.Fukui;T.Noma;T.Honjo;M.Takigawa;M.Sasaki;N.Minato;M.Tsudo:The Journal of Immunology. 134. 1623-1630 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] K.Ikuta;M.Hattori;K.Wake;S.Kano;T.Honjo;J.Yodoi;N.Minato: The Journal of Experimental Medicine. 164. 428-442 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] J.Masuyama;N.Minato;S.Kano: The Journal of Clinical Investigation. 77. 1956-1965 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] S.Kajigaya;T.Suda;J.Suda;M.Saito;Y.Miura;M.Iizuka;S.Kobayashi;N.Minato;T.Sudo: The Journal of Experimental Medicine. 164. 1102-1113 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] T.Morita;Y.Yonese;N.Minato: The Journal of National Cancer Institute. (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] N. Minato, T. Amagai, J. Yodoi, T. Diamanstein & S. Kano: "Regulation of the growth and functions of cloned murine large granular lymphocyte lines by resident macrophages ." The Journal of Experimental Medicine. 163. 1161-1181 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] J.Yodoi, K. Teshigawara, T. Nikaido, K. Fukui, T. Noma, T. Honjo, M. Takigawa, M. Sasaki, N. Minato, M. Tsudo, T. Uchiyama and M. Maeda: "TCGF (IL 2)-RECEPTOR INDUCING FACTOR(S) I. Regulation of IL 2 receptor on a natural killer-like cell line (YT cells)" The Journal of Immunology. 134. 1623-1630 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] K. Ikuta, M. Hattori, K. Wake, S. Kano, T. Honjo, J. Yodoi and N. Minato: "Expression and rearrangement of the <alpha> , <beta> and <gamma> chain genes of the T cell receptor in cloned murine large granular lymphocyte lines; No correlation with the cytotoxic spectrum." The Journal of Experimental Medicine. 164. 428-442 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] J. Masuyama, N. Minato and S. Kano: "Mechanisms of lymphocyte adhesion to human vascular endothelial cells in culture. T lymphocyte adhesion to endothelial cells through endothelial HLA-DR antigens induced by gamma interferon." The Journal of Clinical Investigation. 77. 1956-1965 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] S. Kajigaya, T. Suda, J. Suda, M. Saito, Y. Miura, M. Iizuka, S. Kobayashi, N. Minato and T. Sudo: "A recombinant murine granulocyte/macrophage (GM) colony-stimulating factor derived from an inducer T cell line (1H5.5). Functional restriction to GM progenitor cells." The Journal of Experimental Medicine. 164. 1102-1113 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary

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Published: 1987-03-31   Modified: 2016-04-21  

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