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Genetic Analysis of Megakaryopoiesis and Its Diagnostic Application

Research Project

Project/Area Number 04671434
Research Category

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

Allocation TypeSingle-year Grants
Research Field Laboratory medicine
Research InstitutionKOBE UNIVERSITY

Principal Investigator

YAMAGUCHI Nobuo  Kobe University, School of Medicine, Professor, 医学部, 教授 (00026890)

Co-Investigator(Kenkyū-buntansha) KONDO Shinichi  Kobe University, School of Medicine, Assistant Professor, 医学部・附属病院, 講師 (50153721)
RYO Ryukichi  Kobe University, School of Medicine, Assistant Professor, 医学部・附属病院, 講師 (00159237)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywordsmegakaryopoiesis / cytokine receptor mRNA / ras p21-related small GTP-binding protein / smg 21 / rho P21 / megakaryocyte polyploidization / megakaryocyte leukemia cell line / rho p21 / Smg、p21 / ras p21関連低分子GTP蛋白 / ま / 巨核球系株化細胞 / 巨核球性白血病 / GM-CSF受容体β鎖 / IL-6リセプター / IL-6 / PF4 / 巨核球・血小板・膜糖蛋白 / in situ hybridization
Research Abstract

Our present study was designed to clarify why the same megakaryocyte progenitor cells respond to various cytokines at different stages of magakaryocyte development. First, we analyzed the expressions of IL-3 receptor bata-subunit(IL-3R) mRNA and IL-6 receptor(IL-6R) mRNA during magakaryocyte differentiation. The molecular mechanism by which cytokine binding to its receptor exerts diverse biological responses remains unknown. To clarify the intracellular signal pathway in megakartocyte differentiation, we examined the role of ras p21 -like small GT P-binding proteins such as smg P21 and rho P21 in megakaryocyte development. In addition, we tried to establish the cell line with megakaryocyte lineage, which are unresponsive to cytokines such as leukemia inhibitory factor(LIF), IL-3, GM-CSF, and 11-6. We characterized that cell line to eluciade the mechanism by which the megakaryocytic leukemia cell proliferates and differentiates. Our results are as follows.
1. We found that IL-3 R mRNA wa … More s expressed constitutively in CMK cells and was transiently down-regulated by TPA and IL-6(megalaryocyte-differentiating agents), while the expression of IL-6 mRNA was increased by TPA in association with the differentiation of megakaryocytes. These results provides evidence that regulation of expression of cytokine receptor mRNA may be one the mechanisms for modulating the responsiveness of megakaryocyte progenitor cells to different cytokines during megakaryocyte development.
2. Both smg p21 mRNA and smg P21B mRNA were detected in CMK cells, and their levels were markedly elevated by TPA, which caused the differentiation of CMK cells into more mature megakaryocytes. The smg p21 protein molecules also increased during the TPA-induced diffrentiation of CMK cells. The mRNA level of glycoportein(GP)IIb was increased by TPA, but the time course of increase in the smg p21 mRNA levels was more rapid than that of the increase in the GP IIb mRNA level. These results imply that smg P21 may play an important role in regulating the megakaryocyte differentiation.
3. CMK cells constitutively expressed rho A and rho C mRNAs. Further, addition of C3 exoenzyme(C3) caused the inacitivation of rho protein in CMK cells and thereafter the megakaryocyte polyploidization. This result reveals that rho proteins may function as a regulator of the megakaryocyte polyploidization.
4. The new megakaryocytic leukemia cell line, designated KHI84, was established from the patient, who had the initial symptoms of swelling of the right cervical lymphnode. Surface marker analysis showed that KHI84 cells expressed GP Ib and GP IIb/IIIa antigens. However, Northern blot analysis revealed that platelet factor 4 mRNA, a mature megakaryocyte marker, was absent in KHI84 cells. In addition, neither cytokines such as LIF, IL-3, GM-CSF, and IL-6 nor TPA caused the proliferation and/or differentiation of KHI84 cells. These findings indicate that KHI85 is a useful cell line for investigating the mechanism of megakaryopoiesis. Less

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] M.Yasunaga et al.: "Modulation of GM-CSF Receptor β-subunit and Interleukin-6 Receptor mRNA Expression in a Human Megakaryocytic Leukemia Cell Line" Leukemia and Lymphoma. 8. 397-403 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yasunaga et al.: "Detection of Platelet-Specific Protein mRNAs in Different Megakaryoblastic Using the Revers Tronscriptase Polymerase Chain Reaction" Leukemia and Lymphoma. 7. 505-510 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Adachi et al.: "Induction of Smg p21/rap 1A p21/krev-1p21 Gene Expression during Phorbol ester-induced Differentiation of a Human Megakaryocytic Leukemia Cell Line" Oncogene. 7. 323-329 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Nagano et al.: "Ultrastructural Analysis of a Human Megakaryocytic Leukemia Cell Line(CMK 11-5)in Response to Platelet Agonists" International Journal of Hematology. 57. 73-80 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yasunaga et al.: "Extramedullary Tumor as Presentation of Megakaryocytic Leukemia:Establishment of a New Human Leukemia Cell Line" Annals of Hematology. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] R.Ryo et al.: "Platelet Release Reaction during EDTA-induced Platelet Agglutinations and Inhibition of EDTA-induced Platelet Agglutination by Anti-alycoprotein IIb/IIIa Comlex Monoclonal Antibody" Thrombosis Research. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yasunaga, R.Ryo and N.Yamaguchi: "Modulation of GM-CSF Receptor beta-subunit and Interleukin-6 Receptor mRNA Expression in a Human Megakaryocytic Leukemia Cell Line." Leukemia and Lymphoma. 8. 397-403 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yasunaga, R.Ryo, W.Sugano and N.Yamaguchi: "Detection of Platelet-Specific Protein mRNAs in Defferent Megakaryoblasts Using the Reverse Transcriptase Polymerase Chain Reaction." Leukemia and Lymphoma. 7. 505-510 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] R.Ryo, M.Yasunaga, K.Saigo and N.Yamaguchi: "Megakaryocytic Leukemia and Platelet Factor 4." Leukemia and Lymphoma. 8. 327-336 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Adachi, R.Ryo, A.Yoshida, W.Sugano, M.Yasunaga, K.Saigo, N.Yamaguchi, T.Sano, K.Kaibuchi and Y.Takai: "Induction of Smg p21/rap 1A p21/krev-1p21 Gene Expression during Phorbol ester-induced Differentiation of a Human Megakaryocytic Leukemia Cell Line." Oncogene. 7. 323-329 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] R.Ryo, A.Yoshida, W.Sugano, M.Yasunaga, K.Nakayama, K.Saigo, M.Adachi, N.Yamaguchi and M.Okuma: "Deficiency of P62, a Putative Collagen Receptor, in Platelets from a Patient with Defective Collagen-induced Platelet Aggregation." American Journal of Hematology. 39. 25-31 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] W.Sugano, R.Ryo, N.Yamaguchi and Y.Shibata: "Endoglycosidase H digestion of Yuk^b (Pen^r) alloantigen." Thrombosis Research. 67. 167-177 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Yasunaga, R.Ryo, Y.Konaka, S.Sawada, H.Taniguchi, M.Goto, Jiang Jikai, W.Sugano, K.Saigo and N.Yamaguchi: "Extramedullary Tumor as Presentation of Megakaryocytic Leukemia : Establishment of a New Human Leukemia Cell Line." Annals of Hematology. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] R.Ryo, W.Sugano, M.Goto, M.Takeda, K.Saigo, M.Hashimoto and N.Yamaguchi: "Platelet Release Reaction during EDTA-induced Platelet Agglutinations and Inhibition of EDTA-induced Platelet Agglutination by Anti-alycoprotein IIb/IIIa Comlex Monoclonal Antibody." Thrombosis Research. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Nagano et al.: "Ultrastructural Analysis of a Human Megakaryocytic Leukemia Cell Line(CMK11-5)in Response to a Platelet Agonists" International Journal of Hematology. 57. 73-80 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Yasunaga et al.: "Extramedullary Tumor as Presentation of Megakaryocytic Leukemia:Establishment of a New Human Leukemia Cell Line" Annals of Hematology. (in press).

    • Related Report
      1993 Annual Research Report
  • [Publications] R.Ryo et al.: "Platelet Release Reaction during EDTA-induced Platelet Agglutinations and Inhibition of EDTA-induced Agglutination by Anti-glycoprotein IIb/IIIa Complex Monoclonal Antibody" Thrombosis Research. (in press).

    • Related Report
      1993 Annual Research Report
  • [Publications] J.Jikai: "In Situ Hybridization法による巨核球でのmRNAの検出" 臨床病理. 40. 841-847 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] A.Yosida: "Expression of P62,A putative collagen receptor,on human megakaryocytic leukemia cells" Leukemia and Lymphoma. 6. 196-196 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Adachi: "Induction of smg p21/rap1A p21/krev-1 p21 gene expression during phorbol ester-induced differentiation of a human megakaryocytic leukemia cell line." Oncogene. 7. 323-329 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Yasunaga: "Detection of platelet-specific protein mRNAs in different Megakaryoblasts using the reverse transcriptase polymerase chain reaction" Leukemia and Lymphoma. 7. 505-510 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] R.Ryo: "Megakaryocytic leukemia and platelet factor 4" Leukemia and Lymphoma. 8. 327-336 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Yasunaga: "Modulation of GM-CSF receptor β-subunit and interleukin-6 receptor mRNA expression in a human megakaryocytic leukemia cell line" Leukemia and Lymphoma. 8. 397-403 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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