title: Pyrimidinones: inducers of NK cell activity and antitumor immunity.
abstract: We have shown that pyrimidinone molecule, 2 amino-5-iodo-6-phenyl-4-pyrimidinone (AIPP) after regional administration, displayed both prophylactic and therapeutic effect on ascitic mammary adenocarcinoma, ACA-755. The antitumor effect was mediated by natural killer (NK) cells, since depletion of this lymphocyte population resulted in abrogation of AIPP-induced tumor resistance. This observation confirms the role of NK cells in antitumor immunity and suggests that AIPP may be therapeutically beneficial also in man.
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy / Q000276:immunology* / Q000473:pathology; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology / Q000627:therapeutic use*; D002460:Cell Line; D003596:Cytosine / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use; D005260:Female; D007694:Killer Cells, Natural / Q000276:immunology*; D008325:Mammary Neoplasms, Experimental / Q000188:drug therapy / Q000276:immunology* / Q000473:pathology; D051379:Mice
chemical_list: D000970:Antineoplastic Agents; C033561:2-amino-5-iodo-6-phenyl-4-pyrimidinone; D003596:Cytosine