The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway

Abstract A variety of drugs targeting monoamine receptors are routinely used in human pharmacology. We assessed the effect of these drugs on the viability of tumor‐initiating cells isolated from patients with glioblastoma. Among the drugs targeting monoamine receptors, we identified prazosin, an α1‐...

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Main Authors: Suzana Assad Kahn, Silvia Lima Costa, Sharareh Gholamin, Ryan T Nitta, Luiz Gustavo Dubois, Marie Fève, Maria Zeniou, Paulo Lucas Cerqueira Coelho, Elias El‐Habr, Josette Cadusseau, Pascale Varlet, Siddhartha S Mitra, Bertrand Devaux, Marie‐Claude Kilhoffer, Samuel H Cheshier, Vivaldo Moura‐Neto, Jacques Haiech, Marie‐Pierre Junier, Hervé Chneiweiss
Format: Article
Language:English
Published: Springer Nature 2016-04-01
Series:EMBO Molecular Medicine
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Online Access:https://doi.org/10.15252/emmm.201505421
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author Suzana Assad Kahn
Silvia Lima Costa
Sharareh Gholamin
Ryan T Nitta
Luiz Gustavo Dubois
Marie Fève
Maria Zeniou
Paulo Lucas Cerqueira Coelho
Elias El‐Habr
Josette Cadusseau
Pascale Varlet
Siddhartha S Mitra
Bertrand Devaux
Marie‐Claude Kilhoffer
Samuel H Cheshier
Vivaldo Moura‐Neto
Jacques Haiech
Marie‐Pierre Junier
Hervé Chneiweiss
author_facet Suzana Assad Kahn
Silvia Lima Costa
Sharareh Gholamin
Ryan T Nitta
Luiz Gustavo Dubois
Marie Fève
Maria Zeniou
Paulo Lucas Cerqueira Coelho
Elias El‐Habr
Josette Cadusseau
Pascale Varlet
Siddhartha S Mitra
Bertrand Devaux
Marie‐Claude Kilhoffer
Samuel H Cheshier
Vivaldo Moura‐Neto
Jacques Haiech
Marie‐Pierre Junier
Hervé Chneiweiss
author_sort Suzana Assad Kahn
collection DOAJ
description Abstract A variety of drugs targeting monoamine receptors are routinely used in human pharmacology. We assessed the effect of these drugs on the viability of tumor‐initiating cells isolated from patients with glioblastoma. Among the drugs targeting monoamine receptors, we identified prazosin, an α1‐ and α2B‐adrenergic receptor antagonist, as the most potent inducer of patient‐derived glioblastoma‐initiating cell death. Prazosin triggered apoptosis of glioblastoma‐initiating cells and of their differentiated progeny, inhibited glioblastoma growth in orthotopic xenografts of patient‐derived glioblastoma‐initiating cells, and increased survival of glioblastoma‐bearing mice. We found that prazosin acted in glioblastoma‐initiating cells independently from adrenergic receptors. Its off‐target activity occurred via a PKCδ‐dependent inhibition of the AKT pathway, which resulted in caspase‐3 activation. Blockade of PKCδ activation prevented all molecular changes observed in prazosin‐treated glioblastoma‐initiating cells, as well as prazosin‐induced apoptosis. Based on these data, we conclude that prazosin, an FDA‐approved drug for the control of hypertension, inhibits glioblastoma growth through a PKCδ‐dependent mechanism. These findings open up promising prospects for the use of prazosin as an adjuvant therapy for glioblastoma patients.
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spelling doaj-art-e0c2de418b164543ac5b7d7885f022cd2025-08-20T04:02:55ZengSpringer NatureEMBO Molecular Medicine1757-46761757-46842016-04-018551152610.15252/emmm.201505421The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathwaySuzana Assad Kahn0Silvia Lima Costa1Sharareh Gholamin2Ryan T Nitta3Luiz Gustavo Dubois4Marie Fève5Maria Zeniou6Paulo Lucas Cerqueira Coelho7Elias El‐Habr8Josette Cadusseau9Pascale Varlet10Siddhartha S Mitra11Bertrand Devaux12Marie‐Claude Kilhoffer13Samuel H Cheshier14Vivaldo Moura‐Neto15Jacques Haiech16Marie‐Pierre Junier17Hervé Chneiweiss18INSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSINSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSDepartment of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford UniversityDepartment of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford UniversityINSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSLaboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200Laboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200INSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSINSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSUMR INSERM 955‐Team 10, Faculté des Sciences et Technologies UPECDepartment of Neuropathology, Sainte‐Anne HospitalDepartment of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford UniversityINSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSLaboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200Department of Neurosurgery, Institute for Stem Cell Biology and Regenerative Medicine and Division of Pediatric Neurosurgery, Lucile Packard Children's Hospital, Stanford UniversityInstituto Estadual do Cérebro Paulo NiemeyerLaboratoire d'Innovation Thérapeutique, Laboratoire d'Excellence Medalis, Faculté de Pharmacie, Université de Strasbourg/CNRS UMR7200INSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSINSERM, UMR‐S 1130, Neuroscience Paris Seine‐IBPSAbstract A variety of drugs targeting monoamine receptors are routinely used in human pharmacology. We assessed the effect of these drugs on the viability of tumor‐initiating cells isolated from patients with glioblastoma. Among the drugs targeting monoamine receptors, we identified prazosin, an α1‐ and α2B‐adrenergic receptor antagonist, as the most potent inducer of patient‐derived glioblastoma‐initiating cell death. Prazosin triggered apoptosis of glioblastoma‐initiating cells and of their differentiated progeny, inhibited glioblastoma growth in orthotopic xenografts of patient‐derived glioblastoma‐initiating cells, and increased survival of glioblastoma‐bearing mice. We found that prazosin acted in glioblastoma‐initiating cells independently from adrenergic receptors. Its off‐target activity occurred via a PKCδ‐dependent inhibition of the AKT pathway, which resulted in caspase‐3 activation. Blockade of PKCδ activation prevented all molecular changes observed in prazosin‐treated glioblastoma‐initiating cells, as well as prazosin‐induced apoptosis. Based on these data, we conclude that prazosin, an FDA‐approved drug for the control of hypertension, inhibits glioblastoma growth through a PKCδ‐dependent mechanism. These findings open up promising prospects for the use of prazosin as an adjuvant therapy for glioblastoma patients.https://doi.org/10.15252/emmm.201505421gliomaGL261rottlerinsh PKCδδV1.1
spellingShingle Suzana Assad Kahn
Silvia Lima Costa
Sharareh Gholamin
Ryan T Nitta
Luiz Gustavo Dubois
Marie Fève
Maria Zeniou
Paulo Lucas Cerqueira Coelho
Elias El‐Habr
Josette Cadusseau
Pascale Varlet
Siddhartha S Mitra
Bertrand Devaux
Marie‐Claude Kilhoffer
Samuel H Cheshier
Vivaldo Moura‐Neto
Jacques Haiech
Marie‐Pierre Junier
Hervé Chneiweiss
The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
EMBO Molecular Medicine
glioma
GL261
rottlerin
sh PKCδ
δV1.1
title The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
title_full The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
title_fullStr The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
title_full_unstemmed The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
title_short The anti‐hypertensive drug prazosin inhibits glioblastoma growth via the PKCδ‐dependent inhibition of the AKT pathway
title_sort anti hypertensive drug prazosin inhibits glioblastoma growth via the pkcδ dependent inhibition of the akt pathway
topic glioma
GL261
rottlerin
sh PKCδ
δV1.1
url https://doi.org/10.15252/emmm.201505421
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