1. Sex differences in the GSK3β-mediated survival of adherent leukemic progenitors
- Author
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Jessica Bertrand, Bernard Payrastre, N Gallay, Nathalie Vergnolle, Véronique Maguer-Satta, Mathieu Despeaux, Cécile Demur, Ezzeddine Bourogaa, S Joly, P Bonnevialle, F Louache, Claire Racaud-Sultan, ANDRA, Laboratoire d'Hématologie [Purpan], Université Paul Sabatier - Toulouse 3 ( UPS ) -CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], Equipe 11, Centre de Recherche en Cancérologie de Lyon ( CRCL ), Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Physiopathologie Toulouse Purpan, Université Paul Sabatier - Toulouse 3 ( UPS ) -IFR30-IFR150-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Departement /u563 : Oncogenèse, Signalisation et Innovation thérapeutique, Université Paul Sabatier - Toulouse 3 ( UPS ) -Institut Claudius Regaud-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse], Centre de Recherche en Cancérologie de Lyon (UNICANCER/CRCL), Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Physiopathologie Toulouse Purpan (CPTP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut Claudius Regaud
- Subjects
Male ,MESH : Aged ,Antigens, CD34 ,MESH : Blotting, Western ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,Glycogen Synthase Kinase 3 ,0302 clinical medicine ,MESH : Indoles ,MESH : Tumor Cells, Cultured ,GSK-3 ,Tumor Cells, Cultured ,Protein Phosphatase 2 ,MESH : GTP-Binding Proteins ,Cells, Cultured ,MESH: Glycogen Synthase Kinase 3 ,MESH: Etoposide ,Etoposide ,MESH: Indoles ,MESH : Maleimides ,Aged, 80 and over ,MESH : Cell Survival ,0303 health sciences ,education.field_of_study ,MESH: Middle Aged ,MESH: Protein Phosphatase 2 ,Neoplasm Proteins ,MESH: Cell Survival ,MESH: Young Adult ,030220 oncology & carcinogenesis ,Neoplastic Stem Cells ,RNA Interference ,MESH: Cells, Cultured ,MESH : Protein Phosphatase 2 ,MESH : Glycogen Synthase Kinase 3 ,MESH: Antineoplastic Agents, Phytogenic ,Blotting, Western ,MESH : Young Adult ,Receptors, Cell Surface ,MESH: Cell Adhesion ,03 medical and health sciences ,MESH : Neoplasm Proteins ,MESH: Sex Factors ,Genetics ,MESH: Blotting, Western ,Humans ,MESH : Middle Aged ,MESH: Tumor Cells, Cultured ,Progenitor cell ,MESH : Aged, 80 and over ,Clonogenic assay ,education ,Molecular Biology ,Aged ,MESH: Interleukin-3 Receptor alpha Subunit ,MESH: Humans ,Glycogen Synthase Kinase 3 beta ,MESH : Hematopoietic Stem Cells ,MESH : Humans ,MESH : Leukemia ,MESH: Adult ,MESH: Antigens, CD34 ,Protein phosphatase 2 ,Hematopoietic Stem Cells ,MESH: Neoplastic Stem Cells ,Immunology ,MESH: Female ,MESH: Neoplasm Proteins ,Cancer Research ,Indoles ,MESH : Receptors, Cell Surface ,MESH : Interleukin-3 Receptor alpha Subunit ,MESH : Antineoplastic Agents, Phytogenic ,MESH: Hematopoietic Stem Cells ,Maleimides ,MESH: Aged, 80 and over ,MESH : Female ,MESH: Maleimides ,MESH: Receptors, Cell Surface ,MESH: Aged ,Leukemia ,Myeloid leukemia ,MESH : Adult ,Middle Aged ,medicine.anatomical_structure ,MESH : Antigens, CD34 ,Female ,Stem cell ,Adult ,MESH: GTP-Binding Proteins ,Cell Survival ,MESH : Male ,MESH : Sex Factors ,MESH: RNA Interference ,Population ,Interleukin-3 Receptor alpha Subunit ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,MESH : Etoposide ,Biology ,Receptors for Activated C Kinase ,Young Adult ,MESH : Neoplastic Stem Cells ,Sex Factors ,GTP-Binding Proteins ,MESH: Leukemia ,MESH : Cells, Cultured ,Cell Adhesion ,medicine ,030304 developmental biology ,Antineoplastic Agents, Phytogenic ,MESH: Male ,MESH : Cell Adhesion ,Cancer research ,Bone marrow ,MESH : RNA Interference - Abstract
International audience; Therapeutic resistance of acute myeloid leukemia stem cells, enriched in the CD34(+)38(-)123(+) progenitor population, is supported by extrinsic factors such as the bone marrow niche. Here, we report that when adherent onto fibronectin or osteoblast components, CD34(+)38(-)123(+) progenitors survive through an integrin-dependent activation of glycogen synthase kinase 3β (GSK3β) by serine 9-dephosphorylation. Strikingly, GSK3β-mediated survival was restricted to leukemic progenitors from female patients. GSK3β inhibition restored sensitivity to etoposide, and impaired the clonogenic capacities of adherent leukemic progenitors from female patients. In leukemic progenitors from female but not male patients, the scaffolding protein RACK1, activated downstream of α(5)β(1)-integrin engagement, was specifically upregulated and controlled GSK3β activation through the phosphatase protein phosphatase 2A (PP2A). In a mirrored manner, survival of adherent progenitors (CD34(+)38(-)) from male but not female healthy donors was partially dependent on this pathway. We conclude that the GSK3β-dependent survival pathway might be sex-specific in normal immature population and flip-flopped upon leukemogenesis. Taken together, our results strengthen GSK3β as a promising target for leukemic stem cell therapy and reveal gender differences as a new parameter in anti-leukemia therapy.
- Published
- 2011
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