The major objective of this proposed research program is to develop new types of anticancer agents by preparing a new kind of enzyme inhibitor that will inhibit enzymes on the de novo pathways to nucleotides and nucleic acids. Thymidine kinase, nucleoside diphosphate reductase and inosinic acid dehydrogenase are the enzymes selected for study. Success with any of these enzymes will allow extension to other enzymes critical to cell proliferation. The design of the potential inhibitors is based on the precise knowledge, from X-ray crystallography, of the binding of nucleotides to the enzyme active site, as exemplified by the binding of calcium-thymidine 3', 5'-diphosphate to nuclease. Potential inhibitors, and intermediates, will be studied at three levels: the isolated enzyme, whole cells in culture, and in vivo experimental animal tumor systems. Information gained from these systems, as well as from chemical studies with these compounds, will guide the synthesis program.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
5R01CA023173-08
Application #
3166039
Study Section
Experimental Therapeutics Subcommittee 2 (ET)
Project Start
1978-04-01
Project End
1986-03-31
Budget Start
1985-04-01
Budget End
1986-03-31
Support Year
8
Fiscal Year
1985
Total Cost
Indirect Cost
Name
Southern Research Institute
Department
Type
DUNS #
006900526
City
Birmingham
State
AL
Country
United States
Zip Code
35205
Elliott, R D; Thomas, H J; Shaddix, S C et al. (1988) Nitrosoureido nucleosides as potential inhibitors of nucleotide biosynthesis. J Med Chem 31:250-4
Elliott, R D; Pruett, P S; Brockman, R W et al. (1987) Reactive 5'-substituted 2',5'-dideoxyuridine derivatives as potential inhibitors of nucleotide biosynthesis. J Med Chem 30:927-30
Thomas, H J; Avery, L N; Brockman, R W et al. (1987) 5-Amino-4-(diazoacetyl)-1-beta-D-ribofuranosylimidazole, a new antileukemic agent. J Med Chem 30:431-4
Sani, B P; Vaid, A; Cory, J G et al. (1986) 5'-Haloacetamido-5'-deoxythymidines: novel inhibitors of thymidylate synthase. Biochim Biophys Acta 881:175-84
Elliott, R D; Brockman, R W; Montgomery, J A (1986) Reactive 5'-substituted thymidine derivatives as potential inhibitors of nucleotide biosynthesis. J Med Chem 29:1052-6
Montgomery, J A; Thomas, H J; Zell, A L et al. (1985) Study on the inhibition of adenosine deaminase. J Med Chem 28:1751-3