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Molecular mechanisms of proliferation and differentiation of germinal center B cells

Research Project

Project/Area Number 09470091
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Immunology
Research InstitutionThe University of Tokyo

Principal Investigator

TAKATSU Kiyoshi  The University of Tokyo, Institute of Medical Science, Professor, 医科学研究所, 教授 (10107055)

Co-Investigator(Kenkyū-buntansha) UEHARA Shoji  The University of Tokyo, Institute of Medical Science, Research Associate, 医科学研究所, 教務職員 (60272499)
TAKAKI Satoshi  The University of Tokyo, Institute of Medical Science, Research Associate, 医科学研究所, 助手 (10242116)
KINASHI Tatsuo  The University of Tokyo, Institute of Medical Science, Research Associate, 医科学研究所, 助手 (30202039)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 1998: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1997: ¥10,300,000 (Direct Cost: ¥10,300,000)
KeywordsIL-5 / B cell differentiation / CD40 / CD38 / IL-4 / Btk / X-linked immunodeficiency / Follicular mantle zone / メモリーB細胞 / 胚中心 / B細胞 / 超変異 / 抗体の親和性 / CD40とリガンド / サイトカイン
Research Abstract

Germinal center (GC) develops in secondary lymphoid tissues in response to thymus-dependent (TD) antigens (Ag). To investigate the molecular mechanism of mouse GC B cell differentiation and elucidate the function of GC B cells from X-linked immunodeficient(Xid)mice, we enriched GC B cells from spleen of TD Ag-immunized mice, monitored the expression of functional molecules, and determined the differentiation into Ag-specific IgGI antibody forming cells (AFCs) in response to anti-CD40 mAb and cytokines in vitro. GC B cells expressed IL-4 receptor (R), and approximately 5% of GC B cells expressed IL-5R.IL-4 in the presence of anti-CD40 mAb induced the differentiation of GC B cells from wild-type mice into Ag-specific IgGI AFCs, and enhanced the IL-5R expression on GC B cells from wild-type mice. IL-5 enhanced further the IgGI AFC response. The GC B cells from Xid mice responded to anti-CD40 mAb and IL-4 resulting in the IgGI response, whereas IL-5 did not enhance the response. These findings suggest that anti-CD40 mAb, IL-4, and IL-5 play a critical role in differentiation of mouse GC B cells. The GCB cells from Xid mice show functional defect with respect to IL-5-mediated differentiation.
We then examined effect of CD40 and CD38 on differentiation of GC and follicular mantle(FM)B cells. The results showed that IL-5Ralpha positive cells were mainly distributed in GC which also expressed CD40, whereas CD38 expression was down-regulated on GC B cells. Stimulation of GC B cells with IL-5 plus anti-CD38 mAb did not induce the IgGI response. The expression of IL-5Ralpha, CD38, and CD40 in Xidmice was similar to that in wild-type mice. Furthermore, IL-5Ralpha deficient mice showed normal response to TD Ag, regarding GC development and Ag-specific IgGI production. These results suggest that IL-5 plays a critical role in differentiation of mouse GC B cells as a costimulatory factor rather than an essential factor.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] Takatsu,K.: "Cytokines involved in B cell differentiation and their site of action." Proc.Soc.Exp.Biol.Med.215. 121-133 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Baba, M.et al.: "The role of CD40 ligation and cytokines in differentiation of mouse germinal center B cells towards antigen-specific antibody-forming cells : functional defects of germinal center B cells of Xid mice." Int.Immunol.9. 1463-1473 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahashi,T.et al.: "Suppression of autoimmune disease and of massive lymphadenopathy in MRL/MP-lpr/lpr mice lacking tyrosine kinase fyn (p59fyn)." J.Immunol.159. 2532-2541 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yasue,T.et al.: "A critical role of Lyn and Fyn for B cell responses to CD38 ligation and interleukin-5." Proc.natl.Acad.Sci.USA,. 94. 10307-10312 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ogata,N.et al.: "JAK2 and JAK1 are constitutivelv associate with an interleukin-5(IL-5)receptor α and βc subunit,respectively,and are activated upon IL-5 stimula" Blood. 91. 2264-2271 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiroi, T.et al.: "Deficiency of IL-5 receptor α chain selectively influences on the development of IgA producing B-1 cell in mucosa associated tissues" J.Immunol.162. 821-828 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kinashi.T.et al.: "Regulated adhesion by modulating affinity and subcellular localization of integrin VLA-5(α5β1)in mast cells." J.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mizoguchi C.et al.: "Interleukin-5 induces IgGl Isotype Switch Recombination in mouse CD38-Activated slgD-Positive B Lymphocytes." J.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yasue,T., et al.: "IgGl production by sIgD+ splenic B cells and peritoneal B-1 cells in response to IL-5 and CD38 ligation." Int.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sakiyama,T., et al.: "Requirement of interelukin-5 for induction of autoimmune hemolytic anemia in the anti-red blood cell autoantibody transgenic mice." Int.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takatsu, K.: "Cytokines involved in B cell differentiation and their site of action." Proc.Soc.Exp.Biol.Med.215. 121-133 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Baba, M., Y.Kikuchi, S.Mori, K.Takatsu.et al.: "The role of CD40 ligation and cytokines in differentiation of mouse germinal center B cells towards antigen-specific antibody-forming cells : functional defects of germinal center B cells of Xid mice." Int.Immunol.9. 1463-1473 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahashi, T., T.Yagi, S.Kakinuma, K.Takatsu, et al.: "Suppression of autoimmune disease and of massive lymphadenopathy in MRL/MP-lpr/lpr mice lacking tyrosine kinase fyn (p59fyn) ." J.Immunol.159. 2532-2541 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yasue, T., H.Nishizumi, S.Aizawa, K Takatsu.et al.: "A critical role of Lyn and Fyn for B cell responses to CD38 ligation and interleukin-5." Proc.natl.Acad.Sci.USA. 94. 10307-10312 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ogata, N., T.Kouro, A.Yamada, K.Takatsu.et al.: "JAK2 and JAK1 are constitutively associate with an interleukin-5 (IL-5) receptor alpha and betac subunit, respectively, and are activated upon IL-5 stimulation." Blood. 91. 2264-2271 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiroi, T., M.Yanagida, H.Iijima, K.Takatsu, et al.: "Deficiency of IL-5 receptor alpha chain selectively influences on the development of IgA producing B-1 cell in mucosa associated tissues." J.Immunol.162. 821-828 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kinashi, T., Asaoka, H.Sagara, K.Takatsu, et al.: "Regulated adhesion by modulating affinity and subcellular localization of integrin VLA-5 (alpha5beta1) in mast cells." J.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Mizoguchi, C., S.Uehara, S.Akira, and K.Takatsu.: "Interleukin-5 Induces IgG1 Isotype Switch Recombination in mouse CD38-Activated sIgD-Positive B Lymphocytes." J.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yasue, T., Baba, M., S.Mori, K.Takatsu, et al.: "IgG1 production by sIgD+splenic B cells and peritoncal B-1 cells in response to IL-5 and CD38 ligation." Int.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sakiyama, T., S.Nishitani, K.Takatsu, et al.: "Rcquirement of interelukin-5 for induction of autoimmune hemolytic anemia in the anti-red blood cell autoantibody transgenic mice." Int.Immunol.(in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ogata N.et al.: "JAK2 and JAK1 are constitutively associate with an interleukin-5(IL-5)receptor α and β subunit,respectively,and are activated upon IL-5 stimulation." Blood.

    • Related Report
      1998 Annual Research Report
  • [Publications] Takatsu K: "Interleukin 5 and B cell differentiation." Cytokines Growth Factor Rev.

    • Related Report
      1998 Annual Research Report
  • [Publications] Nagai H.et al.: "Effect of overproduction of interleukin 5 on dinitrofluorobenzene-induced allergic cutaneous response in mice." J.Pharmacol.Exp.Ther.

    • Related Report
      1998 Annual Research Report
  • [Publications] Kinashi T.et al.: "Affinity modulation of VLA-5 through P13-kinase in mast cells." J.Immunol.

    • Related Report
      1998 Annual Research Report
  • [Publications] Mizoguchi C.et al.: "Interleukin-5 induces IgGl Isotype Switch Recombination in mouse CD38-Activated slgD-Positive B Lymphocytes." J.Immunol.

    • Related Report
      1998 Annual Research Report
  • [Publications] Yasue T.et al.: "Expression and function of CD38 on mouse follicular mantle B cells than germinal center B cells." Int.Immunol.

    • Related Report
      1998 Annual Research Report
  • [Publications] 高津、聖志: "標準免疫学" 谷口 克,

    • Related Report
      1998 Annual Research Report
  • [Publications] Numata F.et al.: "B cells with abnormal Btk are responsible for the development of murine aquired immunodeficiency syndrome,MAIDS." International of Immunology. 9. 139-146 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yasue T.et al.: "A critical role of Lyn and Fyn for B cell responses to CD38 ligation and interleukin-5." Proceedings of National Academy of Science USA. 94. 10307-10312 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takahashi T.et al.: "Suppression of autoimmune disease and of massive lymphadenopathy in MRL/MP-1pr/1pr mice lacking tyrosine kinase fyn (p59fyn)." Journal of Immunology. 159. 2532-2541 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takahashi K.et al.: "Effects of granulocyte/macrophage colony-stimulating factor on the development and differentiation of CD5-positive macrophages and their derivation from a CD5-positive B cell lineage in mice_(in press)" American Journal of Pathology. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Gon S.et al.: "Apoptosis and in vivo distribution and clearance of eosinophils in normal and Trichinella spiralis-infected rats." Journal of Leukocyte Biology. 62. 309-317 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Ogata N.et al.: "Signal transduction through human IL-5 receptor a chain in eosinophils." International Archives of Allergy and Immunology. 114. 24-27 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takatsu K.et al.Interleukin-5.: "Growth Factors and Cytokines in Health and Disease." JAI Press,INC, 342 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takatsu K.: "IL-5:From Moilecules to Drug Target for Asthma" Marcel Dekker,Inc.(in press), (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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