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Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
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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...
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Related Experiment Video

Updated: Aug 23, 2025

Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate DMBA-TPA
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Considerations for carcinogenesis countermeasure development using mouse models.

Jean L Nakamura1

  • 1University of California, San Francisco, Department of Radiation Oncology, Helen Diller Family Comprehensive Cancer Center, United States.

Life Sciences in Space Research
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PubMed
Summary

Space radiation exposure poses risks to astronauts, particularly concerning cancer development. Developing effective countermeasures requires understanding radiation

Keywords:
CarcinogenesisCountermeasuresMouse modelsRadiation

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Area of Science:

  • Space medicine
  • Radiation oncology
  • Astrobiology

Background:

  • Space exploration presents unique environmental challenges for human health.
  • Ionizing radiation exposure in space is a significant concern due to poorly understood long-term effects on human tissues.
  • Carcinogenesis is a complex disease process, making the development of countermeasures particularly challenging.

Conclusions:

  • Accelerated development of space radiation countermeasures is necessary.
  • Integrating biological insights with advanced modeling is key to effective countermeasure design.
  • Further research is needed to mitigate space radiation-induced cancer risks for astronauts.