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Multistep carcinogenesis: a 1992 perspective
1National Cancer Center, Tokyo, Japan.
Science (New York, N.Y.)
|October 23, 1992
Summary
Cancer remains Japan
Area of Science:
- Oncology
- Nutritional Science
- Toxicology
Background:
- Cancer is the primary cause of mortality in Japan.
- Shifting cancer incidence patterns suggest a correlation with Westernized dietary habits and lifestyles.
- Heterocyclic amines, mutagenic compounds found in cooked meats and fish, are implicated in carcinogenesis.
Purpose of the Study:
- To investigate the role of dietary factors, specifically heterocyclic amines, in cancer development within the Japanese population.
- To explore the relationship between Westernized lifestyle changes and evolving cancer incidence.
- To re-evaluate current cancer risk assessment methodologies in light of multifactorial carcinogenesis.
Main Methods:
- Analysis of dietary patterns and their association with cancer incidence.
- Identification and quantification of heterocyclic amines in commonly consumed cooked foods.
- Review of epidemiological data on cancer trends in Japan.
Main Results:
- Evidence suggests a link between Western dietary patterns and increased cancer risk.
- Heterocyclic amines are identified as significant mutagenic agents contributing to carcinogenesis.
- The multistep nature of carcinogenesis involves the accumulation of genetic alterations.
Conclusions:
- Dietary factors, including heterocyclic amines from cooked foods, play a crucial role in cancer development.
- Lifestyle changes towards Western patterns are associated with rising cancer rates in Japan.
- A comprehensive understanding of interacting factors is essential for refining cancer risk assessment strategies.
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