Inosine Triphosphate Pyrophosphohydrolase Expression: Decreased in Leukocytes of HIV-Infected Patients Using Combination Antiretroviral Therapy

N. Chantal Peltenburg, Mathie P. G. Leers, Jaap A. Bakker, Selwyn H. Lowe, Wim H. M. Vroemen, Aimee D. C. Paulussen, Bianca J. C. van den Bosch, Jorgen Bierau, Annelies Verbon*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Objective: In HIV-infected patients, the enzyme Inosine triphosphate pyrophosphohydrolase (ITPase), involved in purine nucleotide homeostasis, was found to be decreased in erythrocytes. Since purine analogues are pivotal in the HIV treatment, a better understanding of ITPase expression in CD4(+) lymphocytes may lead to better understanding of nucleotide metabolism and (adverse) effects. Design: Cross-sectional, cohort, observational study. Methods: HIV-infected and control patients above 18 years were included. All DNA samples were genotyped for the 2 functional ITPA SNPs; c. 94C>A (rs1127354) and g. IVS+21A>C (rs7270101). ITPase expression was determined by flow cytometry in all leukocyte subsets. Results: Fifty-nine HIV-infected patients and 50 controls were included. Leukocyte subtype distribution showed no difference in monocytes and granulocytes, but lymphocytes were higher in HIV-infected patients (P
Original languageEnglish
Pages (from-to)390-395
Number of pages6
JournalJaids-journal of Acquired Immune Deficiency Syndromes
Volume73
Issue number4
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • ITPA
  • inosine triphosphatase
  • HIV
  • leukocytes
  • lymphocytes

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