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Dipropylcyclopentylxanthine triggers apoptosis in cells from patients with myeloid leukaemia

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Abstract

1,3-Dipropyl-8-cyclopentylxanthine (DPCPX), a xanthine analogue used as a selective antagonist of adenosine receptors, caused apoptosis in a variety of leukaemia-derived cell lines as well as in cells from patients with myeloid leukaemia. Apoptosis was assessed by flow cytometry, by DNA fragmentation and by accumulation of histones, H2A, H2B, R3 and H4, in the nucleoplasm of cells. Cell cycle analysis indicated that apoptosis occurred irrespective of the cell cycle phase. DPCPX did not trigger apoptosis in resting human peripheral blood lymphocytes; neither did it potentiate the apoptotic effect of phytohemagglutinin (PHA), when these cells were activated by PHA. These results indicate that DPCPX may be useful in the therapy of proliferative disorders of the hematopoietic system.

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Authors
  1. M. Mirabet
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  2. J. Mallol
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  3. C. Lluis
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  4. R. Franco
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Mirabet, M., Mallol, J., Lluis, C. et al. Dipropylcyclopentylxanthine triggers apoptosis in cells from patients with myeloid leukaemia. Apoptosis 3, 183–193 (1998). https://doi.org/10.1023/A:1009650906376

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