Title: The pyrimidine nucleoside phosphorylase of Mycoplasma hyorhinis and how it may Aafect nucleoside-based therapy
Authors: Vande Voorde, Johan ×
Liekens, Sandra
Gago, F
Balzarini, Jan #
Issue Date: Apr-2014
Publisher: Marcel Dekker
Series Title: Nucleosides, Nucleotides & Nucleic Acids vol:33 issue:4-6 pages:394-402
Article number: 10.1080/15257770.2013.851394
Abstract: Mycoplasmas are opportunistic parasites and some species are suggested to preferentially colonize tumor tissue in cancer patients. We could demonstrate that the annotated thymidine phosphorylase (TP) gene in the genome of Mycoplasma hyorhinis encodes a pyrimidine nucleoside phosphorylase (PyNPHyor) that not only efficiently catalyzes thymidine but also uridine phosphorolysis. The kinetic characteristics of PyNPHyor-catalyzed nucleoside and nucleoside analogue (NA) phosphorolysis were determined. We demonstrated that the expression of such an enzyme in mycoplasma-infected cell cultures dramatically alters the activity of various anticancer/antiviral NAs such as 5-halogenated pyrimidine nucleosides, including 5-trifluorothymidine (TFT). Due to their close association with human cancers, the presence of mycoplasmas may markedly influence the therapeutic efficiency of nucleoside-based drugs.
ISSN: 1525-7770
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
× corresponding author
# (joint) last author

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