Acta Parasitologica

, Volume 60, Issue 2, pp 190–195 | Cite as

Evaluation of Eimeria krijgsmanni as a murine model for testing the efficacy of anti-parasitic agents

  • Toshinori Takeo
  • Tetsuya Tanaka
  • Makoto Matsubayashi
  • Masashi Tsujio
  • Rika Umemiya-Shirafuji
  • Naotoshi Tsuji
  • Kozo Fujisaki
  • Toshihiro Matsui
  • Tomohide MatsuoEmail author


Murine Eimeria spp. have been used as effective models of disease instead of large mammalian hosts such as cattle. We attempted to establish in vivo and in vitro assays using a murine intestinal protozoan, Eimeria krijgsmanni, which we previously isolated, to test anti-parasitic agents. Consequently, when mice were treated with sulfur drugs or toltrazuril, which are commercially available for livestock. Furthermore, sporulated oocysts and excysted sporozoites of E. krijgsmanni were treated with naturally occurring substances (lactoferrin, longicin, and curcumin). Although exposure to these substances did not affect oocyst infectivity, sporozoite viability decreased by 60% with longicin. However, direct injection of sporozoites treated with longicin into mice ceca did not result in any changes in the oocyst shedding pattern compared with control mice. The results suggest that E. krijgsmanni could be resistant to these anti-parasitic agents and might therefore have different characteristics to other apicomplexan parasites.


Eimeria krijgsmanni mouse sulfur drug lactoferrin longicin curcumin 


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Copyright information

© Witold Stefański Institute of Parasitology, Polish Academy of Sciences 2015

Authors and Affiliations

  • Toshinori Takeo
    • 1
  • Tetsuya Tanaka
    • 2
  • Makoto Matsubayashi
    • 3
  • Masashi Tsujio
    • 4
  • Rika Umemiya-Shirafuji
    • 5
  • Naotoshi Tsuji
    • 3
  • Kozo Fujisaki
    • 6
  • Toshihiro Matsui
    • 7
  • Tomohide Matsuo
    • 1
    Email author
  1. 1.Laboratory of Parasitology, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshimaJapan
  2. 2.Laboratory of Infectious Diseases, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshimaJapan
  3. 3.Bacterial and Parasitic Diseases Research Division, National Institute of Animal HealthNational Agriculture and Food Research OrganizationTsukuba, IbarakiJapan
  4. 4.Laboratory of Anatomy, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshimaJapan
  5. 5.National Research Center for Protozoan DiseasesObihiro University of Agriculture and Veterinary MedicineObihiroJapan
  6. 6.National Agriculture and Food Research OrganizationTsukuba, IbarakiJapan
  7. 7.Seisen UniversityHigashi GotandaTokyoJapan

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