1. Is cancer a pure growth curve or does it follow a kinetics of dynamical structural transformation?
- Author
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González, Maraelys Morales, González Joa, Javier Antonio, Bergues Cabrales, Luis Enrique, Bergues Pupo, Ana Elisa, Schneider, Baruch, Kondakci, Suleyman, Camué Ciria, Héctor Manuel, Reyes, Juan Bory, Jarque, Manuel Verdecia, O'Farril Mateus, Miguel Angel, González, Tamara Rubio, Acosta Brooks, Soraida Candida, Hernández Cáceres, José Luis, Sierra González, Gustavo Victoriano, Joa, Javier Antonio González, Cabrales, Luis Enrique Bergues, Pupo, Ana Elisa Bergues, Ciria, Héctor Manuel Camué, Mateus, Miguel Angel O'Farril, and Brooks, Soraida Candida Acosta
- Subjects
TUMOR growth ,FIBROSARCOMA ,CANCER invasiveness ,CANCER ,GOMPERTZ functions (Mathematics) ,LOGISTIC model (Demography) ,MATHEMATICAL models ,ANIMAL experimentation ,CELL lines ,CELL physiology ,DYNAMICS ,MICE ,THEORY ,CONNECTIVE tissue tumors - Abstract
Background: Unperturbed tumor growth kinetics is one of the more studied cancer topics; however, it is poorly understood. Mathematical modeling is a useful tool to elucidate new mechanisms involved in tumor growth kinetics, which can be relevant to understand cancer genesis and select the most suitable treatment.Methods: The classical Kolmogorov-Johnson-Mehl-Avrami as well as the modified Kolmogorov-Johnson-Mehl-Avrami models to describe unperturbed fibrosarcoma Sa-37 tumor growth are used and compared with the Gompertz modified and Logistic models. Viable tumor cells (1×105) are inoculated to 28 BALB/c male mice.Results: Modified Gompertz, Logistic, Kolmogorov-Johnson-Mehl-Avrami classical and modified Kolmogorov-Johnson-Mehl-Avrami models fit well to the experimental data and agree with one another. A jump in the time behaviors of the instantaneous slopes of classical and modified Kolmogorov-Johnson-Mehl-Avrami models and high values of these instantaneous slopes at very early stages of tumor growth kinetics are observed.Conclusions: The modified Kolmogorov-Johnson-Mehl-Avrami equation can be used to describe unperturbed fibrosarcoma Sa-37 tumor growth. It reveals that diffusion-controlled nucleation/growth and impingement mechanisms are involved in tumor growth kinetics. On the other hand, tumor development kinetics reveals dynamical structural transformations rather than a pure growth curve. Tumor fractal property prevails during entire TGK. [ABSTRACT FROM AUTHOR]- Published
- 2017
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