Related Experiment Video

Updated: Jun 14, 2026

Formation of Covalent DNA Adducts by Enzymatically Activated Carcinogens and Drugs In Vitro and Their Determination by 32P-postlabeling
09:33

Formation of Covalent DNA Adducts by Enzymatically Activated Carcinogens and Drugs In Vitro and Their Determination by 32P-postlabeling

Published on: March 20, 2018

[Antineoplastic drugs as a potential risk factor in occupational settings: mechanisms of action at the cell level,

Nevenka Kopjar1, Davor Zeljezić, Vilena Kasuba

  • 1Institut za medicinska istrazivanja i medicinu rada, Zagreb, Hrvatska. nkopjar@imi.hr

Arhiv Za Higijenu Rada I Toksikologiju
|March 27, 2010
PubMed

Insights

This study reviews antineoplastic drugs and their genotoxic risks. The micronucleus assay is identified as the most effective biomarker for assessing chemotherapy drug exposure in healthcare workers.

Area of Science:

  • Oncology
  • Toxicology
  • Genetics

Context:

  • Antineoplastic drugs are crucial in cancer treatment but pose genotoxic risks.
  • Healthcare workers face occupational exposure to these hazardous agents.
  • Understanding drug mechanisms and genotoxicity is vital for safety.

Purpose:

  • To provide an overview of antineoplastic drug mechanisms and genotoxic potentials.
  • To classify drugs based on IARC monographs and ATC system.
  • To review biomonitoring studies on healthcare worker exposure.

Summary:

  • Discusses genotoxicity of chemotherapy agents and their classification.
  • Analyzes biomonitoring studies (1980-2009) using sister chromatid exchanges, chromosome aberrations, micronuclei, and comet assay.
  • Highlights the micronucleus assay as the most suitable biomarker for assessing antineoplastic drug genotoxicity.

Impact:

  • Informs risk management for healthcare workers exposed to genotoxic drugs.
  • Enhances understanding of individual genome sensitivity to cytotoxic agents.
  • Supports improved occupational safety practices in clinical settings.

More Related Videos

Advanced 3D Liver Models for In vitro Genotoxicity Testing Following Long-Term Nanomaterial Exposure08:25

Advanced 3D Liver Models for In vitro Genotoxicity Testing Following Long-Term Nanomaterial Exposure

Published on: June 5, 2020

Related Concept Videos

Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
Drug Toxicity: Dose-Dependent Reactions01:24

Drug Toxicity: Dose-Dependent Reactions

Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
Drug Toxicity: Risk factors01:24

Drug Toxicity: Risk factors

Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Bioactivation and Tissue Toxicity01:25

Bioactivation and Tissue Toxicity

Bioactivation is a metabolic process that transforms less reactive substances into highly reactive metabolites, initiating tissue toxicity. This transformation can lead to various toxic effects, including carcinogenesis and teratogenesis. Reactive metabolites are classified into two main types: electrophiles and free radicals.Electrophiles are electron-deficient species and are produced primarily by the enzyme cytochrome P-450 during the metabolism of compounds containing carbon, nitrogen, or...