[Some biological aspects of cancer. Approach to a general theory of cancerogenesis].

Cancer is considered to be the consequence of internal evolutionary drives typical of species with open evolution (e.g. vertebrates) deficient in the primary teleonomic mechanisms underlying the maintenance of reproductive invariability. With this in mind, a biological test is hypothesized which would make it possible to identify and isolate substances from definitely non-variant species with the purpose of studying their influence on the morphogenetic processes that, at cytoplasmatic level, bring about the transformation of normal into neoplastic cells. On this basis it might be possible to establish an inhibition therapy to back up immunitary therapy as a complement to surgery and radiation.