Comparative Metabolism of a New Antileishmanial Agent, Allopurinol Riboside, in the Parasite and the Host Cell

  • Donald J. Nelson
  • Stephen W. LaFon
  • Gertrude B. Elion
  • J. Joseph Marr
  • Randolph L. Berens
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 122B)


Leishmania donovani and L. braziliensis are monocellular hemoflagellates which infect millions of people in tropical regions of the world. These parasitic organisms depend exclusively upon salvage of bases and nucleosides from the host mileu for their purine requirement1. Allopurinol (HPP) as well as 4-aminopyrazolo(3,4-d)pyrimidine (4-APP) and oxipurinol (DHPP) are inhibitors of the growth of the promastigote form of these organisms in culture and adenine can reverse this effect2. Since HPP is a widely used therapeutic agent for the control of hyperuricemia in man and is remarkably non-toxic to mammalian cells, it was of interest to determine how the metabolism of HPP and allopurinol riboside (HPP-Rib), a normal metabolite of allopurinol in man3, differs in the leishmaniae and mammalian host.


Purine Nucleoside Purine Nucleoside Phosphorylase Hypoxanthine Phosphoribosyltransferase Leishmania Donovani Parasitic Organism 
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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Donald J. Nelson
    • 1
  • Stephen W. LaFon
    • 1
  • Gertrude B. Elion
    • 1
  • J. Joseph Marr
    • 2
  • Randolph L. Berens
    • 2
  1. 1.Wellcome Research LaboratoriesResearch Triangle ParkUSA
  2. 2.Dept. of MedicineSt. Louis UniversitySt. LouisUSA

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