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[Detection of cellular sensitization in mice after treatment with chemical carcinogens]
Archiv Fur Geschwulstforschung
|January 1, 1983
Abstract:
Mice were treated epicutaneously (DMBA, benzene) and subcutaneously (BP, MNH) with chemical carcinogens. As detected by the MEM-test a cellular sensitization developed against fetal antigens, which are present in 3M KCl-extracts of mouse fetal tissue. The sensitization was detected before formation of tumors occurred. The conclusion was drawn that sensitization to fetal antigens is not a characteristic feature of tumor-bearing animals.
Insights
Cellular sensitization to fetal antigens develops before tumor formation in mice exposed to chemical carcinogens. This finding suggests that immune sensitization to fetal antigens is not exclusive to tumor-bearing animals.
Area of Science:
- Immunology
- Carcinogenesis
- Developmental Biology
Context:
- Chemical carcinogens like DMBA, benzene, BP, and MNH induce tumors in mice via epicutaneous and subcutaneous administration.
- The MEM-test is utilized to detect cellular sensitization.
- Fetal antigens are present in 3M KCl-extracts of mouse fetal tissue.
Purpose:
- To investigate the temporal relationship between cellular sensitization to fetal antigens and tumor development following chemical carcinogen exposure.
- To determine if sensitization to fetal antigens is a hallmark of tumor-bearing animals.
Summary:
- Mice treated with chemical carcinogens (DMBA, benzene, BP, MNH) developed cellular sensitization to fetal antigens, detectable by the MEM-test.
- This sensitization was observed prior to the onset of tumor formation.
- The study concludes that sensitization to fetal antigens is not a characteristic feature solely of tumor-bearing animals.
Impact:
- Challenges the notion that immune responses to fetal antigens are exclusively linked to cancer.
- Provides insights into the early immune events during chemical carcinogenesis.
- Suggests potential for immune monitoring in pre-cancerous stages.