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Mechanism of eosinophilia in angiostrongyliasis cantonensis

Research Project

Project/Area Number 59480156
Research Category

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

Allocation TypeSingle-year Grants
Research Field 寄生虫学(含医用動物学)
Research InstitutionAkita University

Principal Investigator

YOSHIMURA Kentaro  Akita University School of Medicine; Professor, 医学部, 教授 (90053058)

Co-Investigator(Kenkyū-buntansha) ISHIDA Kazuto  Akita University School of Medicine; Assistant, 医学部, 助手 (60006731)
KAMIYA Haruo  Akita University School of Medicine; Ass. Professor, 医学部, 助教授 (70002079)
Project Period (FY) 1984 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥6,600,000 (Direct Cost: ¥6,600,000)
Fiscal Year 1986: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1985: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1984: ¥4,600,000 (Direct Cost: ¥4,600,000)
KeywordsAngiostrongylus cantonensis / Eosinophil / Host-specificity / Cerebrospinal fluid / T cell / Marrow culture / Eosinophil chemotactic factor / 電子顕微鏡
Research Abstract

This study was performed to determine the mechanism of eosinophilia and the possible roles of the eosinophils in angiostrongyliasis cantonensis. The results obtained are summarized as follows: 1. The excretory/secretory (E/S) products of the young adult worms of Angiostrongylus cantonensis contain a major factor(s) responsible for inducing eosinophilia in the nonpermissive, guinea pig host with pulmonary arterial transfers of the worms. Such a factor(s) for the permissive rat host would possibly be associated with the eggs or lst-stage larvae. T cell-independency of the eosinophilic response to young adult worm extracts in the nonpermissive mouse host implies the presence of a direct eosinopoietic activity in the extracts. 2. Guinea pig-eosinophils strongly respond to the eosinophil chemotactic (EC) substance from adult worms both in vitro and in vivo, but rat-eosinophils failed to do so. A study is now underway to determine whether some receptors specific for the EC substances are pre … More sent on the guinea pig-eosinophils and also to determine whether eggs and larval stages have an EC activity. 3. When mediastinal lymph-node cells and splenic cells from the guinea pigs transferred with the young adult worms 5-14 days earlier were stimulated in vitro by young adult worm antigen, they generated and released an eosinopoietic factor(s) into the media. The factor is nondialysable and more than 10000 in molecular weight. Although the liquid marrow culture has so far failed to reveal the direct eosinopoietic activity of the somatic and E/S antigens of the young adult worms, soft-agar cultures are now in progress to determine the presence or absence of this activity. 4. Mice infected with A. cantonensis induced pleocytosis and eosinophilia in the cerebrospinal fluid (CSF), both of which were of T cell-dependence. The recovery of viable worms from the brains abruptly decreased in accordance with this CSF eosinophilia, suggesting the possible association of the eosinophilia with worm killing. An ultrastructural study revealed degraunlative and other changes in CSF eosinophils, e.g., the decrease in granule numbers and the appearance of small and round-shaped granules, suggesting the activated status of the cells. CSF eosinophils generated superoxide anion following the stimulation with PMA and digitonin. The present study is also suggestive of the possibility that young adult worm antigen is capable of stimulating <O_2> generation of the cells. A further study is required to determine why the rat host fails to develop CSF eosinophilia in spite of the presence of T cells in this animal. Less

Report

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

    (30 results)

All Other

All Publications (30 results)

  • [Publications] Ishida,K;Yoshimura,K.: Z.Parasitenkd.72. 661-671 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura,K.;Sugaya,H.: Manuscript in preparation.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura,K.;Sugaya,H.;Kawamura,K.: Manuscript in preparation.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 菅谷博子,吉村堅太郎,石田和人,石郷岡清基,山下恵子: 寄生虫誌. 32(2;補). 87 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 熊谷正広,吉村堅太郎,石田和人,菅谷博子,山下恵子,石郷岡清基: 寄生虫誌. 35(増). 58 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 菅谷博子,吉村堅太郎,石田和人,熊谷正広,石郷岡清基,山下恵子: 寄生虫誌. 35(増). 58 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 石田和人,吉村堅太郎,山下恵子: 寄生虫誌. 34(2;補). 80-81 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 吉村堅太郎: 寄生虫誌. 34(増). 5 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 石田和人,吉村堅太郎,神谷晴夫,石郷岡清基,山下恵子: 寄生虫誌. 34(増). 23 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 石田和人,吉村堅太郎,山下恵子: 寄生虫誌. 33(2;補). 82 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 石田和人,吉村堅太郎,石郷岡清基,山下恵子: 寄生虫誌. 33(増). 56 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura,K.;Uchida,K.;Sato,K.;Oya,H.: Parasite Immunol.6. 105-118 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Uchida,K.;Yoshimura,K.;Sato,K.;Yosida,T.H.: J.Helminthol.58. 255-258 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 吉村堅太郎: 獣医学 1984. 177-204 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura,K.: "Eosinophilic responses and their functions in the neurotropic nematode,Angiostognylus cantonensis,infection as seenin the animal models.In Ko,R.C.(ed.):Current Perspectives in Parasitic Diseases." University of Hong Kong, 151-163 (1984)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ishida, K.; Yoshimura, K.: "Eosinophil responses of permissive and nonpermissive hosts to the young adult worms of Angiostrongylus cantonensis." Z. Parasitenkd.72. 661-671 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.; Sugaya, H.: "T cell-dependent eosinophilia in the cerebrospinal fluid of the mouse infected with Angiostrongylus cantonensis." Manuscript in preparation.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.; Sugaya, H.; Kawamura, K.: "Ultrastructural study of the eosinophils in the cerebrospinal fluid of the mouse infected with Angiostrongylus cantonensis." Manuscript in preparation.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Sugaya, H.; Yoshimura, K.; Ishida, K.; Ishigooka, S.; Yamashita, K.: "Eosinophilia in cerebrospinal fluid of mice experimentally infected with Angiostrongylus cantonensis (1)" Jpn. J. Parasit.35(2; Suppl.). 87. (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Kumagai, M.; Yoshimura, K,; Ishida, K.; Sugaya, H.; Yamashita, K.; Ishigooka, S.: "Mechanism of eosinophilia in the guinea pig with pulmonary arterial transfers of Angiostrongylus cantonensis (1)" Jpn. J. Parasit.35 (Suppl.). 58. (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Sugaya, H.; Yoshimura, K.; Ishida, K.; Kumagai, M.; Ishigooka, S.; Yamashita, K.: "Eosinophilia in cerebrospinal fluid of mice experimentally infected with Angiostrongylus cantonensis (2)" Jpn. J. Parasit.35 (Suppl.). 58. (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ishida, K.; Yoshimura, K.; Yamashita, K.: "Resistance against challenge infection in permissive and nonpermissive hosts transferred with live or dead young adult worms of Angiostrongylus cantonensis." Jpn. J. Parasit.34(2; Suppl.). 80-81. (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.: "A role of eosinophils in rejecting the establishment of Angiostrongylus cantonensis in the lungs of nonpermissive hosts." Jpn. J. Parasit.34 (Suppl.). 5. (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ishida, K.; Yoshimura, K.; Kamiya, H.; Ishigooka, S.; Yamashita, K.: "Mechanisms of eosinophilic responses of nonpermissive hosts to the young adult worms of Angiostrongylus cantonensis (1)." Jpn. J. Parasit.34 (Suppl.). 23. (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ishida, K.; Yoshimura, K.; Yamashita, K.: "Eosinophilic responses in permissive and nonpermissive hosts following intrapulmonary transfers of live or dead young adult Angiostrongylus cantonensis." Jpn. J. Parasit.33(2; Suppl.). 82. (1984)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ishida, K.; Yoshimura, K.; Ishigooka, S.; Yamashita, K.: "Eosinophilic responses in permissive and nonpermissive hosts transferred with live or dead young adult worms of Angiostrongylus cantonensis." Jpn. J. Parasit.33 (Suppl.). 56. (1984)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.; Uchida, K.; Sato, K.; Oya, H.: "Ultrastructural evidence for eosinophil-mediated destruction of Angiostrongylus cantonensis transferred into the pulmonary artery of nonpermissive hosts." Parasite Immunol.6. 105-118. (1984)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Uchida, K.; Yoshimura, K.; Sato, K.; Yosida, T. H.: "Studies of Angiostrongylus cantonensis in two experimental hosts." J. Helminthol.58. 255-258. (1984)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.: "Host-specificity of Angiostongylus cantonensis and eosinophils" Jyuigaku 1984. 179-204. (1984)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Yoshimura, K.: University of Hong Kong. Eosinophilic responses and their functions in the neurotropic nematode, Angiostrongylus cantonensis, infection as seen in the animal models. In Ko, R. C. (ed.): Current Perspectives in Parasitic Diseases., 151-163. (1984)

    • 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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