Summary
The effect of 9-β-arabinofuranosyladenine 5′-monophosphate (ara-AMP) on the purine salvage pathway has been studied. On a dose-dependant basis ara-AMP inhibits the incorporation of adenine-8-14C into nucleotides in intact erythrocytes. The partially purified enzymes of the purinc salvage pathway, the adenine phosphoribosyltransferase and the 5′-phosphoribosyl-1-pyrophosphate (PP-ribose-P) synthetase, but not the hypoxanthine-guanine phosphoribosyltransferase, are inhibited by ara-AMP in a non-competitive manner. The possible adverse drug interactions which might occur by the simultaneous use of ara-AMP and other antimetabolites are discussed.
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Abbreviations
- A-PRT:
-
adenine phosphoribosyltransferase
- Ara-A:
-
9-β-arabinofuranosyladenine
- Ara-AMP:
-
9-β-arabinofuranosyladenine 5′-monophosphate
- Ara-IIx:
-
hypoxanthine arabinoside
- Ara-X:
-
xanthine arabinoside
- HG-PRT:
-
hypoxanthine guanine phosphoribosyltransferase
- PP-ribose-P:
-
5′-phosphoribosyl-1-pyrophosphatc
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Dedicated to Prof. Dr. G.W. Löhr on the occasion of his 60th birthday
This study was supported by the Deutsche Forschungsgemeinschaft Be 458/4
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Becher, H.J., Schollmeyer, P. Inhibition of salvage pathway enzymes by adenine arabinoside 5′-monophosphate (ara-AMP). Klin Wochenschr 61, 751–757 (1983). https://doi.org/10.1007/BF01497402
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DOI: https://doi.org/10.1007/BF01497402