Tumour progression: random mutations or an integrated survival response to cellular stress conserved from unicellular organisms?

Abstract excerpt

The current paradigm states that cancer progression is caused by random independent mutations, each selected for its survival advantages. The accelerated rates of phenotypic changes, the pleiotropic effect of several genes involved in progression--which need not be necessarily mutated for inducing the observed changes in cancer cell behaviour--lead us to propose an alternative hypothesis. Malignant progression...

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