Abstract | OBJECTIVE: MATERIALS AND METHODS: RESULTS:
APO866 induced NAD(+) depletion, ΔΨ(m) dissipation, and ATP shortage in leukemia cells, thereby leading to autophagic cell death. TRAIL induced caspase-dependent apoptosis. TRAIL addition to APO866 synergistically increased its activity in leukemia cells by enhancing NAD(+) depletion, ΔΨ(m) dissipation, and ATP shortage. No DR5 upregulation at the cell surface in response to APO866 was observed. Remarkably, in healthy leukocytes APO866 and TRAIL were poorly active and failed to show any cooperation. CONCLUSIONS: Activation of the extrinsic apoptotic cascade with TRAIL selectively amplifies the sequelae of Nampt inhibition in leukemia cells, and appears as a promising strategy to enhance APO866 activity in hematological malignancies.
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Authors | Gabriele Zoppoli, Michele Cea, Debora Soncini, Floriana Fruscione, Justine Rudner, Eva Moran, Irene Caffa, Davide Bedognetti, Giulia Motta, Riccardo Ghio, Fabio Ferrando, Alberto Ballestrero, Silvio Parodi, Claus Belka, Franco Patrone, Santina Bruzzone, Alessio Nencioni |
Journal | Experimental hematology
(Exp Hematol)
Vol. 38
Issue 11
Pg. 979-88
(Nov 2010)
ISSN: 1873-2399 [Electronic] Netherlands |
PMID | 20696207
(Publication Type: Journal Article)
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Copyright | Copyright © 2010 ISEH - Society for Hematology and Stem Cells. Published by Elsevier Inc. All rights reserved. |
Chemical References |
- Acrylamides
- Cytokines
- N-(4-(1-benzoylpiperidin-4-yl)butyl)-3-(pyridin-3-yl)acrylamide
- Piperidines
- Receptors, TNF-Related Apoptosis-Inducing Ligand
- TNF-Related Apoptosis-Inducing Ligand
- Tubulin
- NAD
- Adenosine Triphosphate
- Nicotinamide Phosphoribosyltransferase
- nicotinamide phosphoribosyltransferase, human
- Caspase 3
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Topics |
- Acrylamides
(pharmacology)
- Adenosine Triphosphate
(metabolism)
- Aged
- Apoptosis
(drug effects)
- Autophagy
(drug effects)
- Caspase 3
(metabolism)
- Cell Line, Tumor
- Cells, Cultured
- Cytokines
(antagonists & inhibitors, metabolism)
- Drug Synergism
- Female
- Humans
- Immunoblotting
- Jurkat Cells
- Leukemia
(metabolism, pathology)
- Leukemia, Lymphocytic, Chronic, B-Cell
(blood, pathology)
- Leukocytes, Mononuclear
(drug effects, metabolism)
- Male
- Membrane Potential, Mitochondrial
(drug effects)
- Middle Aged
- NAD
(metabolism)
- Nicotinamide Phosphoribosyltransferase
(antagonists & inhibitors, metabolism)
- Piperidines
(pharmacology)
- Receptors, TNF-Related Apoptosis-Inducing Ligand
(metabolism)
- TNF-Related Apoptosis-Inducing Ligand
(pharmacology)
- Tubulin
(metabolism)
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