On the relationship between fractal geometry of space and time in which a system of interacting cells exists and dynamics of gene expression

• Autorzy: Waliszewski P. , Molski M. , Konarski J.
• Języki publikacji: EN

Abstrakty

EN

We report that both space and time, in which a system of interacting cells exists, possess fractal structure. Each single cell of the system can restore the hierarchical organization and dynamic features of the entire tumor. There is a relationship between dynamics of gene expression and connectivity (i.e., interconnectedness which denotes the existence of complex, dynamic relationships in a population of cells leading to the emergence of global features in the system that would never appear in a single cell existing out of the system). Fractal structure emerges owing to non-bijectivity of dynamic cellular network of genes and their regulatory elements. It disappears during tumor progression. This latter state is characterized by damped dynamics of gene expression, loss of connectivity, loss of collec­tivity (i.e., capability of the interconnected cells to interact in a common mode), and meta­static phenotype. Fractal structure of both space and time is necessary for a cellular sys­tem to self-organize. Our findings indicate that results of molecular studies on gene ex­pression should be interpreted in terms of space-time geometry of the cellular system. In particular, the dynamics of gene expression in cancer cells existing in a malignant tumor is not identical with the dynamics of gene expression in the same cells cultured in the monolayer system.

Słowa kluczowe

EN

interacting cell; fractal dimension; gene expression; neoplasia; dynamics; differentiation

• Wydawca: -
• Czasopismo: Acta Biochimica Polonica
• Rocznik: 2001
• Tom: 48
• Numer: 1
• Opis fizyczny: p.209-220,fig.

Twórcy

autor

Waliszewski P.

• Adam Mickiewicz University, Poznan, Poland

autor

Molski M.

autor

Konarski J.

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