Evidence that poly(ADP-ribose) polymerase is involved in the loss of NAD from cultured rat liver cells.
Rat hepatocytes cultured from 24h lose 60% of their NAD content. By using the differential response to inhibitors of the two major enzymes that catabolize NAD in mammalian cells, it is shown that poly(ADP-ribose) polymerase is responsible for the loss of NAD. The relevance of this observation to the use of cultured hepatocytes for the study of DNA repair induced by carcinogens is discussed.
D000818:Animals; D001549:Benzamides / Q000494:pharmacology; D002478:Cells, Cultured; D008099:Liver / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D008297:Male; D009243:NAD / Q000378:metabolism*; D009244:NAD+ Nucleosidase / Q000378:metabolism*; D000067856:Poly(ADP-ribose) Polymerase Inhibitors; D011065:Poly(ADP-ribose) Polymerases / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains
D001549:Benzamides; D000067856:Poly(ADP-ribose) Polymerase Inhibitors; D009243:NAD; C025160:3-aminobenzamide; D011065:Poly(ADP-ribose) Polymerases; D009244:NAD+ Nucleosidase