Journal
CARCINOGENESIS
Volume 33, Issue 2, Pages 253-259Publisher
OXFORD UNIV PRESS
DOI: 10.1093/carcin/bgr227
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Funding
- European Atomic Energy Community [FI6R-CT-2003-508842 (RiscRad), FI6R-036465 (NOTE), 249689 (DoR-eMi)]
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Selective removal of oncogenically transformed cells by apoptosis induced via signalling by surrounding cells has been suggested to represent a natural anticarcinogenic process. To investigate its potential effect in detail, a mechanistic model of this process is proposed. The model is calibrated against in vitro data on apoptosis triggered in transformed cells by defined external inducers as well as through signalling by normal cells under coculture conditions. The model predicts that intercellular induction of apoptosis is capable of balancing the proliferation of oncogenically transformed cells and limiting the size of their populations over long times, even if their proliferation per se were unlimited. Experimental research is desired to verify whether the predicted stable population of transformed cells corresponds to a kind of dormancy during early-stage carcinogenesis (dormant preneoplastic lesions), and how this process relates to other anticarcinogenic mechanisms taking place under in vivo conditions.
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