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  • Title: Antiproliferative and proapoptotic activities of a new class of pyrazole derivatives in HL-60 cells.
    Author: Anzaldi M, Macciò C, Mazzei M, Bertolotto M, Ottonello L, Dallegri F, Balbi A.
    Journal: Chem Biodivers; 2009 Oct; 6(10):1674-87. PubMed ID: 19842131.
    Abstract:
    A series of N-substituted pyrazole derivatives have been synthesized and tested for their anticancer effect on the HL-60 leukaemia cell line. Four were active both in cell-growth inhibition and in inducing apoptosis. The inhibition of cell growth mainly reflects a compound-induced reduction in the number of cells in phases from S to M, whereas the induction of apoptosis involves inhibition of expression of Bcl-2 and enhanced expression of Bax with consequent reduced activation of the proapoptotic caspase 3. Finally, preliminary experiments carried out with tumor cells from myelogenous leukaemic patients showed that the compounds 4c, 4l, 4m, and 4n are indeed capable of inducing apoptosis.
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