Pyrimidine nucleotide metabolism in L5178Y murine leukemia cells: deoxycytidine protection from deoxyguanosine toxicity. 1976

J C Theiss, and N R Morris, and G A Fischer

Deoxyguanosine was found to inhibit reduction of uridine phosphate within L5178Y cells. A correlation of this effect with deoxyguanosine-induced inhibition of radioactive incorporation into DNA and inhibition of L5178Y cell growth suggests that depletion of thymidylate pools is involved in the toxicity induced by deoxyguanosine. Deoxycytidine appears to protect from deoxyguanosine toxicity by metabolism to thymidylate via a dCMP deaminase pathway, thus replenishing the thymidylate pools which have been depleted by deoxyguanosine.

UI MeSH Term Description Entries
D007942 Leukemia, Experimental Leukemia induced experimentally in animals by exposure to leukemogenic agents, such as VIRUSES; RADIATION; or by TRANSPLANTATION of leukemic tissues. Experimental Leukemia,Experimental Leukemias,Leukemia Model, Animal,Leukemias, Experimental,Animal Leukemia Model,Animal Leukemia Models,Leukemia Models, Animal
D011742 Pyrimidine Nucleotides Pyrimidines with a RIBOSE and phosphate attached that can polymerize to form DNA and RNA. Nucleotides, Pyrimidine
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D003841 Deoxycytidine A nucleoside component of DNA composed of CYTOSINE and DEOXYRIBOSE. Cytosine Deoxyribonucleoside,Cytosine Deoxyriboside,Deoxyribonucleoside, Cytosine,Deoxyriboside, Cytosine
D003853 Deoxyribonucleosides A purine or pyrimidine base bonded to DEOXYRIBOSE.
D004261 DNA Replication The process by which a DNA molecule is duplicated. Autonomous Replication,Replication, Autonomous,Autonomous Replications,DNA Replications,Replication, DNA,Replications, Autonomous,Replications, DNA
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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