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Chemical carcinogens: screening, testing, risk assessment for man
Neoplasma
|January 1, 1981
Summary
Chemical carcinogenicity testing is crucial for toxicology. Long-term animal bioassays remain prominent in predicting human cancer risk, identifying potential hazards.
Area of Science:
- Toxicology and Carcinogenesis
- Chemical Safety Assessment
Background:
- Comprehensive toxicological testing programs are essential for evaluating chemical safety.
- Screening tests (short-term tests) aid in identifying chemicals requiring further investigation for carcinogenic potential.
Purpose of the Study:
- To highlight the significance of chemical carcinogenicity testing within toxicology.
- To emphasize the role of screening tests in prioritizing chemicals for long-term evaluation.
- To underscore the predictive value of long-term animal bioassays for human carcinogenicity.
Main Methods:
- Review of existing methodologies for chemical safety assessment.
- Discussion of the utility of short-term screening tests.
- Analysis of the prominent role of long-term animal bioassays.
Main Results:
- Short-term tests effectively screen chemicals for potential carcinogenicity.
- Long-term animal bioassays are currently the most prominent method for predicting human carcinogenicity.
- Substances causing tumors in animals are considered potential human carcinogens.
Conclusions:
- Chemical carcinogenicity testing is a vital component of toxicological evaluation.
- Long-term animal bioassays, despite limitations, are critical for assessing human cancer risk.
- Any chemical inducing tumors in animal models should be treated as a potential hazard to humans.