Journal
MATHEMATICAL BIOSCIENCES
Volume 197, Issue 2, Pages 140-152Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.mbs.2005.07.003
Keywords
Luria-Delbruck distribution; fluctuation analysis; Gompertz growth; birth-death process; carcinogenesis; mutant clones
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Funding
- NCI NIH HHS [R01 CA047658, R01CA047658] Funding Source: Medline
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We develop extensions of the Luria-Delbruck model that explicitly consider non-exponential growth of normal cells and a birth-death process with mean exponential or Gompertz growth of mutants. Death of mutant cells can be important in clones arising during cancer progression. The use of a birth-death process for growth of mutant cells, as opposed to a pure birth process as in previous work on the Luria-Delbruck model, leads to a large increase in the extra Poisson variation in the size of the mutant cell populations, which needs to be addressed in statistical analyses. We also discuss connections with previous work on carcinogenesis models. (c) 2005 Elsevier Inc. All rights reserved.
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