Coherent vibration states in biological systems excited in nonlinear electrically polar structures by metabolic energy supply were postulated by H. Frohlich. Frohlich's requirements for coherent vibrations and generation of electromagnetic field are satisfied by microtubules whose subunits are electric dipoles. Static electric field around mitochondria and "wasted energy" efflux from them provide nonlinear conditions and coherent excitation. Numerical models are used for analysis of coherent vibration states. A hypothesis is presented that dysfunction of mitochondria (i.e., extinction of the zones of the static electric field and of the efflux of "wasted energy") and disintegration of the cytoskeleton on the pathway of cancer transformation result in disturbances of coherence of the cellular electrically polar oscillations and of the generated electromagnetic field with consequences in cellular organization and interactions between cells. Local invasion, detachment, and metastasis of cancer cells are subsequent events of disturbed electromagnetic interactions.

Institute of Photonics and Electronics Academy of Sciences of the Czech Republic 182 51Prague 8 Czech Republic