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Experimental protothecosis in labortory animals

Z P de Camargo, O Fischman, M R Regis Silva

    Sabouraudia
    |September 1, 1980
    PubMed
    Summary
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    Prototheca zopfii and Prototheca wickerhamii successfully caused protothecosis in laboratory animals via intratesticular inoculation. Other inoculation methods and Prototheca stagnorta did not result in infection.

    Area of Science:

    • Microbiology
    • Veterinary Pathology
    • Infectious Diseases

    Background:

    • Prototheca species are ubiquitous algae.
    • Prototheca infections, known as protothecosis, can affect various hosts, including humans and animals.
    • Understanding the pathogenesis of Prototheca is crucial for diagnosis and treatment.

    Purpose of the Study:

    • To investigate the potential of different Prototheca species to induce protothecosis in laboratory animals.
    • To evaluate the efficacy of various inoculation routes in establishing Prototheca infections.

    Main Methods:

    • Laboratory animals were inoculated with Prototheca zopfii, Prototheca wickerhamii, and Prototheca stagnorta.
    • Inoculation routes included intratesticular, intraperitoneal, intravenous, and subcutaneous injections.

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  • Post-inoculation, attempts were made to culture Prototheca from infected tissues.

    • Main Results:

    • Only intratesticular inoculation led to successful infection in laboratory animals.
    • Prototheca zopfii and Prototheca wickerhamii were the only species recovered from testicular cultures.
    • Prototheca stagnorta did not cause infection via any tested route.

    Conclusions:

    • Intratesticular inoculation is an effective route for inducing experimental protothecosis with specific Prototheca species.
    • Prototheca zopfii and Prototheca wickerhamii exhibit greater pathogenic potential in this experimental model.
    • Further research is needed to understand the host-pathogen interactions in Prototheca infections.