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Evolution of genotoxicity test methods in Japan.
1Formerly National Institute of Health Sciences, Tokyo, Japan.
Summary
Genotoxicity testing methods evolved significantly, driven by concerns over chemical substances, food additives, and drug safety. Early research and the establishment of The Japanese Environmental and Mutagen Society (JEMS) were pivotal.
Area of Science:
- Environmental Science
- Toxicology
- Genetics
Background:
- The Japanese Environmental and Mutagen Society (JEMS) was established in 1972, stemming from a 1970 research group focused on chemical genotoxicity.
- Genotoxicity assessment gained prominence due to concerns about food additives, drug side effects, occupational cancer, and environmental pollution.
Purpose of the Study:
- To trace the historical development of genotoxicity assessment methods.
- To highlight the key scientific and societal factors influencing genotoxicity research.
Main Methods:
- Historical review of genotoxicity testing methodologies.
- Examination of the role of The Japanese Environmental and Mutagen Society (JEMS) and related research initiatives.
Main Results:
- The discovery of genotoxic potential in food additives spurred significant scientific activity.
- The establishment of the reverse mutation assay was crucial for understanding the genotoxicity-carcinogenicity correlation.
Conclusions:
- Genotoxicity testing is critical for human safety, addressing risks from chemicals, drugs, and environmental contaminants.
- The period from the 1960s to 1980s saw diverse genotoxic methodologies emerge and be debated.
