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Related Experiment Videos

Mycoplasma fermentans--HeLa cell interactions

D Taylor-Robinson1, P Sarathchandra, P M Furr

  • 1Division of Sexually Transmitted Diseases, Clinical Research Centre, Harrow, Middlesex, United Kingdom.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|August 1, 1993
PubMed
Summary

Mycoplasmas, including Mycoplasma fermentans, can enter and exist within nonphagocytic epithelial cells. This study provides electron microscopy evidence confirming intracellular localization, validating earlier research.

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Area of Science:

  • Microbiology
  • Cell Biology
  • Infectious Diseases

Background:

  • Previous evidence for intracellular mycoplasma localization in nonphagocytic cells was inconclusive.
  • Renewed interest in mycoplasma cell entry was sparked by observations in patient tissues.

Purpose of the Study:

  • To investigate and confirm the intracellular localization of Mycoplasma fermentans within nonphagocytic cells.
  • To demonstrate the phenomenon using advanced microscopy techniques.

Main Methods:

  • HeLa cells were cultured and treated with specific gold-labeled antiserum against Mycoplasma fermentans.
  • Electron microscopy combined with ruthenium red staining was used to visualize mycoplasmas within cells.
  • The study also examined Mycoplasma hominis for similar intracellular localization.

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Main Results:

  • Mycoplasma fermentans (strains "incognitus" and PG18) was definitively demonstrated within HeLa cells.
  • Intracellular localization was also observed for Mycoplasma hominis.
  • The findings support the hypothesis that mycoplasmas can indeed invade epithelial cells.

Conclusions:

  • Mycoplasmas are capable of intracellular localization within nonphagocytic epithelial cells.
  • This intracellular presence was confirmed using electron microscopy and specific labeling techniques.
  • The study validates earlier, less conclusive findings on mycoplasma cell invasion.