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Archives of Microbiology

, Volume 175, Issue 1, pp 70–74 | Cite as

Mycoplasma hominis and Trichomonas vaginalis symbiosis: multiplicity of infection and transmissibility of M. hominis to human cells

  • Paola Rappelli
  • Franco Carta
  • Giuseppe Delogu
  • Maria Filippa Addis
  • Daniele Dessì
  • Piero Cappuccinelli
  • Pier Luigi Fiori
Original Paper

Abstract.

We recently reported that most Trichomonas vaginalis isolates cultured in vitro are infected by Mycoplasma hominis. In this work, we have characterized some aspects of the relationships between the two microorganisms. PCR, cultivation, and immunological methods revealed that the number of M. hominis organisms carried by T. vaginalis in culture varied from isolate to isolate, suggesting a specific multiplicity of infection. Moreover, infected T. vaginalis isolates were able to pass bacteria not only to M. hominis-free protozoa, but also to human-derived epithelial cells. The in vitro transmission of the bacterium from T. vaginalis to both uninfected parasite isolates and human epithelial cells suggests a role for T. vaginalis as a carrier of the M. hominis infection in vivo.

Trichomonas vaginalis Mycoplasma hominis Symbiosis Sexually transmitted diseases 

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Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • Paola Rappelli
    • 1
  • Franco Carta
    • 1
  • Giuseppe Delogu
    • 1
  • Maria Filippa Addis
    • 1
  • Daniele Dessì
    • 1
  • Piero Cappuccinelli
    • 1
  • Pier Luigi Fiori
    • 1
  1. 1.Department of Biomedical Sciences, Division of Experimental and Clinical Microbiology, University of Sassari, Viale S.Pietro 43/B, 07100 Sassari, Italy

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