The effect of levamisole on human chromosomes

Area of Science:

• Cytogenetics
• Toxicology
• Human Health

Background:

• Levamisole is an anthelmintic and immunomodulatory drug.
• Chromosomal aberrations are indicators of genotoxicity.
• Understanding drug-induced chromosomal damage is crucial for safety assessment.

Purpose of the Study:

• To investigate the genotoxic effects of levamisole on human chromosomes.
• To compare the in vitro and in vivo chromosomal damage induced by levamisole.

Main Methods:

• Human lymphocyte cultures were used for in vitro and in vivo studies.
• Analysis of chromatid and chromosome breaks, gaps, and sister chromatid exchanges (SCE).

Main Results:

• A slight excess of chromatid and chromosome breaks and gaps was observed in both in vitro and in vivo conditions.
• An excess of sister chromatid exchanges (SCE) was detected in vivo, but not in vitro, at comparable levamisole concentrations.

Conclusions:

• Levamisole exhibits clastogenic and aneugenic potential in human lymphocytes.
• In vivo exposure to levamisole may induce higher levels of chromosomal damage, specifically SCE, compared to in vitro exposure.