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Related Experiment Videos

Inhaled vanadium pentoxide decrease gamma-tubulin of mouse testes at different exposure times.

Patricia Mussali-Galante1, Vianey Rodríguez-Lara, Beatriz Hernández-Tellez

  • 1Departamento de Biologia Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de Mexico, Mexico City.

Toxicology and Industrial Health
|December 14, 2005
PubMed
Summary

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Inhaling vanadium pentoxide (V2O5) reduces gamma-tubulin in mouse testes, impacting cell division and potentially causing infertility. This environmental pollutant shows a time-dependent effect on reproductive cells.

Area of Science:

  • Environmental toxicology
  • Reproductive toxicology
  • Cell biology

Background:

  • Vanadium pentoxide (V2O5) is an industrial pollutant with known reproductive toxicity.
  • Vanadium compounds are microtubule-damaging agents.
  • Gamma-tubulin is crucial for microtubule organization and cell division.

Purpose of the Study:

  • To investigate the effects of inhaled vanadium pentoxide on gamma-tubulin expression in somatic and testicular cells.
  • To determine the time-dependent accumulation of vanadium in testes.
  • To assess the relationship between vanadium exposure and gamma-tubulin levels.

Main Methods:

  • Male mice were exposed to inhaled vanadium pentoxide (V2O5) (0.02 M) for 1 hour, twice weekly over 12 weeks.
  • Immunohistochemistry was used to detect and quantify gamma-tubulin in testicular cells (Sertoli, Leydig, and germ cells).

Related Experiment Videos

  • Vanadium accumulation in testes was measured over the exposure period.

    • Main Results:

    • Vanadium was detected in the testes from 24 hours post-inhalation, persisting throughout the 12-week treatment.
    • Inhaled vanadium pentoxide significantly decreased the percentage of gamma-tubulin in Sertoli, Leydig, and germ cells.
    • A significant negative correlation was observed between exposure duration and gamma-tubulin levels, indicating a time-dependent effect.

    Conclusions:

    • Inhalation of vanadium pentoxide leads to vanadium accumulation in the testes.
    • Vanadium exposure alters gamma-tubulin expression in testicular cells, suggesting disruption of microtubule dynamics.
    • These alterations may impair cell division and spermatogenesis, potentially leading to male infertility.