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Related Experiment Videos

Ureaplasma-eukaryotic cell interactions in vitro.

G J McGarrity, H Kotani

    Pediatric Infectious Disease
    |November 1, 1986
    PubMed
    Summary

    Animal Ureaplasmas successfully infected human, simian, and murine cell cultures. Ureaplasma growth in cell cultures depends on cell products, not supplemental urea, explaining its presence in various tissues.

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    Area of Science:

    • Microbiology
    • Cell Biology
    • Infectious Diseases

    Background:

    • Ureaplasmas are bacteria that can infect various hosts.
    • Their presence in tissues outside the urinary tract is not fully understood.
    • Local urea production in tissues may play a role in Ureaplasma survival.

    Purpose of the Study:

    • To investigate the ability of animal Ureaplasmas to infect mammalian and simian cell cultures.
    • To determine the urea requirements for Ureaplasma growth in cell culture.
    • To explore the implications for Ureaplasma isolation from diverse tissue sites.

    Main Methods:

    • Inoculation of Ureaplasmas from six animal species into human, simian, and murine cell cultures.
    • Monitoring of Ureaplasma infection and growth.
    • Assessment of urea concentration requirements for Ureaplasma growth in vitro.

    Main Results:

    • All tested Ureaplasmas infected at least two of the cell culture types.
    • Ureaplasma growth occurred with minimal urea (4 micrograms/ml), independent of supplemental urea.
    • Ureaplasma titers increased significantly (10^5 to 10^7 color changing-units/ml) within 2 days.
    • Cell culture products appear necessary for Ureaplasma growth.
    • Ureaplasma infections persisted and were transferable through cell culture passages.

    Conclusions:

    • Animal Ureaplasmas can infect various mammalian and simian cell cultures.
    • Ureaplasma growth in cell culture is supported by low urea concentrations and requires cell culture products.
    • These findings support the hypothesis that local urea production in host tissues facilitates Ureaplasma survival outside the urinary tract.

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