Abstract

This review discusses the use of systems biology in understanding the biological effects of electromagnetic fields, with particular focus on induction of genomic instability and cancer. We introduce basic concepts of the dynamical systems theory such as the state space and attractors and the use of these concepts in understanding the behavior of complex biological systems. We then discuss genomic instability in the framework of the dynamical systems theory, and describe the hypothesis that environmentally induced genomic instability corresponds to abnormal attractor states; large enough environmental perturbations can force the biological system to leave normal evolutionarily optimized attractors (corresponding to normal cell phenotypes) and migrate to less stable variant attractors. We discuss experimental approaches that can be coupled with theoretical systems biology such as testable predictions, derived from the theory and experimental methods, that can be used for measuring the state of the complex biological system. We also review potentially informative studies and make recommendations for further studies.

Highlights

  • Health and disease are states of the human body, i.e., a biological system

  • The majority of systems biologists fall in the former category, and for them systems biology involves the study of large-scale molecular interactions such as gene networks through the integration of multilevel data and models

  • We focus on induced genomic instability and its role in cancer as cancer is a major issue in the discussion of the health effects of electromagnetic fields

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Summary

Introduction

Health and disease are states of the human body, i.e., a biological system. It might seem obvious that systems biology is needed in understanding environmental health effects. The term “systems biology” has been widely used only fairly recently for various approaches focusing on complex biological systems It started to emerge as a distinct field of science with the advancement of high throughput omics technologies and with the improving capability of constructing computational models of complicated systems. The majority of systems biologists fall in the former category, and for them systems biology involves the study of large-scale molecular interactions such as gene networks through the integration of multilevel data and models. The problem with this approach is that it is essentially reductionist and hinders research on system-level phenomena [3]. We will discuss the use of systems biology (the systems-theoretic approach) in understanding genomic instability and carcinogenesis, its application to theoretical and experimental studies on the effects of electromagnetic fields, and future directions of the systems biology of electromagnetic fields

Dynamical Systems Theory in Biology
Genomic Instability
Dynamical Systems View of Genomic Instability and Cancer
Experimental Approaches
Predictions That Can Be Experimentally Tested
How to Measure the State of the System?
Review of Potentially Informative Studies
Future Outlook
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