Effect of iron on the virulence of Trichomonas vaginalis
1Department of Parasitology, Hanyang University College of Medicine, Seoul, Korea.
Abstract:
The role of iron was evaluated with respect to the virulence of Trichomonas vaginalis in mice. Iron-supplemented and iron-depleted Diamond's trypticase-yeast extract-maltose (TYM) media were prepared by adding 360 microM of ferrous sulfate and 100 microM of 2,2'-dipyridyl. Trophozoites cultivated from normal TYM and iron-supplemented TYM media produced subcutaneous abscesses; however, trichomonads grown in an iron-deficient TYM medium failed to produce any pathology. In addition to the increased virulence of trophozoites in mice, iron affects the level of adherence and the cytotoxicity of trichomonads to HeLa cells, which are significantly reduced in trophozoites grown in iron-deficient medium. In conclusion, it is suggested that under iron-depleted conditions such as that induced by 2,2'-dipyridyl the virulence of T. vaginalis is reduced.
Insights
Iron is crucial for Trichomonas vaginalis virulence. Depleting iron in the growth medium significantly reduced the parasite
Area of Science:
- Parasitology
- Infectious Diseases
- Nutritional Impact on Pathogens
Background:
- Iron is an essential nutrient for many pathogens.
- The role of iron in the virulence of Trichomonas vaginalis remains incompletely understood.
- Trichomonas vaginalis is a common sexually transmitted parasite.
Purpose of the Study:
- To investigate the impact of iron availability on the virulence of Trichomonas vaginalis.
- To assess how iron influences the adherence and cytotoxicity of T. vaginalis.
Main Methods:
- Cultivation of T. vaginalis in iron-supplemented and iron-depleted media.
- Inoculation of mice with cultivated trophozoites to evaluate abscess formation.
- Assessment of trophozoite adherence and cytotoxicity to HeLa cells in vitro.
Main Results:
- Trophozoites grown in iron-deficient medium failed to produce pathology in mice.
- Iron-supplemented and normal media supported abscess formation.
- Reduced iron levels significantly decreased T. vaginalis adherence and cytotoxicity to HeLa cells.
Conclusions:
- Iron availability is a critical factor in the virulence of Trichomonas vaginalis.
- Iron depletion attenuates the pathogenicity of T. vaginalis.
- Iron influences key virulence factors including adherence and cytotoxicity.
More Related Videos
07:26Metal-Limited Growth of Neisseria gonorrhoeae for Characterization of Metal-Responsive Genes and Metal Acquisition from Host Ligands
Published on: March 4, 2020
08:36Quantifying Yersinia pseudotuberculosis Type III Secretion System Activity Following Iron Starvation and Anaerobic Growth
Published on: May 31, 2024
Related Concept Videos
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...
Sexually Transmitted Infections
Urinary Tract Infection II: Pathophysiology
Microbiota of the Urogenital Tract
Trichomoniasis
Antiprotozoal Agents
