LIVER TUMORS INDUCED BY 4-DIMETHYLAMINOAZOBENZENE - EXPERIMENTAL BASIS FOR A CHEMICAL CARCINOGENESIS CONCEPT

  • 1 January 1976
    • journal article
    • research article
    • Vol. 46  (8) , 639-656
Abstract
In rats fed 4-dimethylaminoazobenzene modifications in the distribution of extracellular and intracellular cations in liver were noted. The correlation between cell ionic permeability changes and the induction of cholangiocarcinoma or hepatoma was analyzed in the light of histological and biochemical findings. A new concept of chemical carcinogenesis is stated in which the increase of passive Ca2+ influx produces mitochondrial damage associated with permanent modifications of the structural and functional characteristics of the cell membranes as well as of the genetic mechanisms controlling cell division.