1
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Spory L, Zimmermann J, Vossen-Gajcy M, Beder T, Bastian L, Alsadeq A, Winterberg D, Vogiatzi F, Wirbelauer T, Bhat H, Borkhardt A, Bhatia S, Schrappe M, Cario G, Schewe DM, Lenk L. AP-1 Transcription Factor Complex Members FOSB and FOS are Linked With CNS Infiltration and Inferior Prognosis in Childhood T-ALL. Hemasphere 2023; 7:e945. [PMID: 37670804 PMCID: PMC10476750 DOI: 10.1097/hs9.0000000000000945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/20/2023] [Indexed: 09/07/2023] Open
Affiliation(s)
- Lea Spory
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Johannes Zimmermann
- Department of Evolutionary Ecology and Genetics, Zoological Institute, University of Kiel, Germany
| | - Michaela Vossen-Gajcy
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Thomas Beder
- Medical Department II, Haematology and Oncology, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Lorenz Bastian
- Medical Department II, Haematology and Oncology, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Ameera Alsadeq
- Institute of Immunology, Ulm University Medical Centre, Ulm, Germany
| | - Dorothee Winterberg
- Division of Antibody-Based Immunotherapy, Department of Medicine II, Christian Albrechts University Kiel and University Medical Centre Schleswig-Holstein, Germany
| | - Fotini Vogiatzi
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Tim Wirbelauer
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Hilal Bhat
- Faculty of Medicine, Otto-von-Guericke University, Magdeburg, Germany
| | - Arndt Borkhardt
- Department of Paediatric Oncology, Haematology and Clinical Immunology, Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - Sanil Bhatia
- Department of Paediatric Oncology, Haematology and Clinical Immunology, Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - Martin Schrappe
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Gunnar Cario
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Denis M. Schewe
- Faculty of Medicine, Otto-von-Guericke University, Magdeburg, Germany
| | - Lennart Lenk
- Department of Paediatrics I, Paediatric Haematology/Oncology, ALL-BFM Study Group, University Medical Centre Schleswig-Holstein, Kiel, Germany
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2
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Vadakumchery A, Faraidun H, Ayoubi OE, Outaleb I, Schmid V, Abdelrasoul H, Amendt T, Khadour A, Setz C, Göhring K, Lodd K, Hitzing C, Alkhatib A, Bilal M, Benckendorff J, Al Shugri AK, Brakebusch CH, Engels N, Datta M, Hobeika E, Alsadeq A, Jumaa H. The Small GTPase RHOA Links SLP65 Activation to PTEN Function in Pre B Cells and Is Essential for the Generation and Survival of Normal and Malignant B Cells. Front Immunol 2022; 13:842340. [PMID: 35371049 PMCID: PMC8965026 DOI: 10.3389/fimmu.2022.842340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
The generation, differentiation, survival and activation of B cells are coordinated by signals emerging from the B cell antigen receptor (BCR) or its precursor, the pre-BCR. The adaptor protein SLP65 (also known as BLNK) is an important signaling factor that controls pre-B cell differentiation by down-regulation of PI3K signaling. Here, we investigated the mechanism by which SLP65 interferes with PI3K signaling. We found that SLP65 induces the activity of the small GTPase RHOA, which activates PTEN, a negative regulator of PI3K signaling, by enabling its translocation to the plasma membrane. The essential role of RHOA is confirmed by the complete block in early B cell development in conditional RhoA-deficient mice. The RhoA-deficient progenitor B cells showed defects in activation of immunoglobulin gene rearrangement and fail to survive both in vitro and in vivo. Reconstituting the RhoA-deficient cells with RhoA or Foxo1, a transcription factor repressed by PI3K signaling and activated by PTEN, completely restores the survival defect. However, the defect in differentiation can only be restored by RhoA suggesting a unique role for RHOA in B cell generation and selection. In full agreement, conditional RhoA-deficient mice develop increased amounts of autoreactive antibodies with age. RHOA function is also required at later stage, as inactivation of RhoA in peripheral B cells or in a transformed mature B cell line resulted in cell loss. Together, these data show that RHOA is the key signaling factor for B cell development and function by providing a crucial SLP65-activated link between BCR signaling and activation of PTEN. Moreover, the identified essential role of RHOA for the survival of transformed B cells offers the opportunity for targeting B cell malignancies by blocking RHOA function.
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Affiliation(s)
| | - Hemin Faraidun
- Department of Molecular Immunology, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Omar El Ayoubi
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Issame Outaleb
- Department of Molecular Immunology, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Vera Schmid
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Hend Abdelrasoul
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Timm Amendt
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Ahmad Khadour
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Corinna Setz
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Katharina Göhring
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Karoline Lodd
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Christoffer Hitzing
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Alabbas Alkhatib
- Department of Molecular Immunology, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Mayas Bilal
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | | | | | - Cord Herbert Brakebusch
- Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Niklas Engels
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Moumita Datta
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Elias Hobeika
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Ameera Alsadeq
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany
| | - Hassan Jumaa
- Institute of Immunology, Ulm University Medical Center, Ulm, Germany.,Department of Molecular Immunology, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg, Germany
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3
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Lenk L, Carlet M, Vogiatzi F, Spory L, Winterberg D, Cousins A, Vossen-Gajcy M, Ibruli O, Vokuhl C, Cario G, El Ayoubi O, Kramer L, Ritgen M, Brüggemann M, Häsler R, Schrappe M, Fuhrmann S, Halsey C, Jeremias I, Hobeika E, Jumaa H, Alsadeq A, Schewe DM. CD79a promotes CNS-infiltration and leukemia engraftment in pediatric B-cell precursor acute lymphoblastic leukemia. Commun Biol 2021; 4:73. [PMID: 33452446 PMCID: PMC7810877 DOI: 10.1038/s42003-020-01591-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023] Open
Abstract
Central nervous system (CNS) involvement remains a challenge in the diagnosis and treatment of acute lymphoblastic leukemia (ALL). In this study, we identify CD79a (also known as Igα), a signaling component of the preB cell receptor (preBCR), to be associated with CNS-infiltration and –relapse in B-cell precursor (BCP)-ALL patients. Furthermore, we show that downregulation of CD79a hampers the engraftment of leukemia cells in different murine xenograft models, particularly in the CNS. Lenk et al find that the preB cell receptor (preBCR) is associated with infiltration and relapse of acute lymphoblastic leukemia in the central nervous system (CNS). They also show that downregulation of preBCR component CD79a reduces the engraftment of leukemia cells in different murine xenograft models, particularly in the CNS.
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Affiliation(s)
- Lennart Lenk
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Michela Carlet
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum München, German Center for Environmental Health (HMGU), Marchioninistraße 25, 81377, Munich, Germany
| | - Fotini Vogiatzi
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Lea Spory
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Dorothee Winterberg
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Antony Cousins
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1QH, UK
| | - Michaela Vossen-Gajcy
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Olta Ibruli
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Christian Vokuhl
- Department of Pathology, Section of Pediatric Pathology, Venusberg-Campus 1, Gebäude 62, 53127, Bonn, Germany
| | - Gunnar Cario
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Omar El Ayoubi
- Institute of Immunology, Ulm University Medical Center, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Lisa Kramer
- Institute of Immunology, Ulm University Medical Center, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Matthias Ritgen
- Department of Medicine II, University Hospital Schleswig-Holstein, Langer Segen 8-10, 24105, Kiel, Germany
| | - Monika Brüggemann
- Department of Medicine II, University Hospital Schleswig-Holstein, Langer Segen 8-10, 24105, Kiel, Germany
| | - Robert Häsler
- Institute of Clinical Molecular Biology, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Campus Kiel, Rosalind-Franklin-Straße 12, 24105, Kiel, Germany
| | - Martin Schrappe
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany
| | - Stephan Fuhrmann
- Department of Hematology and Oncology, HELIOS Hospital Berlin-Buch, Rosalind-Franklin-Straße 12, 24105, Kiel, Germany
| | - Christina Halsey
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1QH, UK
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum München, German Center for Environmental Health (HMGU), Marchioninistraße 25, 81377, Munich, Germany.,German Cancer Consortium (DKTK), Partnering Site Munich, Pettenkoferstr. 8a, 80336, München, Germany.,Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Lindwurmstraße 4, 80337, München, Germany
| | - Elias Hobeika
- Institute of Immunology, Ulm University Medical Center, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Hassan Jumaa
- Institute of Immunology, Ulm University Medical Center, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Ameera Alsadeq
- Institute of Immunology, Ulm University Medical Center, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Denis M Schewe
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Arnold-Heller-Str. 3, Haus C, 24105, Kiel, Germany.
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4
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Abdelrasoul H, Vadakumchery A, Werner M, Lenk L, Khadour A, Young M, El Ayoubi O, Vogiatzi F, Krämer M, Schmid V, Chen Z, Yousafzai Y, Cario G, Schrappe M, Müschen M, Halsey C, Mulaw MA, Schewe DM, Hobeika E, Alsadeq A, Jumaa H. Synergism between IL7R and CXCR4 drives BCR-ABL induced transformation in Philadelphia chromosome-positive acute lymphoblastic leukemia. Nat Commun 2020; 11:3194. [PMID: 32581241 PMCID: PMC7314847 DOI: 10.1038/s41467-020-16927-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 05/29/2020] [Indexed: 12/12/2022] Open
Abstract
Ph+ acute lymphoblastic leukemia (ALL) is characterized by the expression of an oncogenic fusion kinase termed BCR-ABL1. Here, we show that interleukin 7 receptor (IL7R) interacts with the chemokine receptor CXCR4 to recruit BCR-ABL1 and JAK kinases in close proximity. Treatment with BCR-ABL1 kinase inhibitors results in elevated expression of IL7R which enables the survival of transformed cells when IL7 was added together with the kinase inhibitors. Importantly, treatment with anti-IL7R antibodies prevents leukemia development in xenotransplantation models using patient-derived Ph+ ALL cells. Our results suggest that the association between IL7R and CXCR4 serves as molecular platform for BCR-ABL1-induced transformation and development of Ph+ ALL. Targeting this platform with anti-IL7R antibody eliminates Ph+ ALL cells including those with resistance to commonly used ABL1 kinase inhibitors. Thus, anti-IL7R antibodies may provide alternative treatment options for ALL in general and may suppress incurable drug-resistant leukemia forms.
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Affiliation(s)
- Hend Abdelrasoul
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Anila Vadakumchery
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Markus Werner
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Lennart Lenk
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Ahmad Khadour
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Marc Young
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Omar El Ayoubi
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Fotini Vogiatzi
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Markus Krämer
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Vera Schmid
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Zhengshan Chen
- Department of Systems Biology and City of Hope Comprehensive Cancer Center, Monrovia, CA, USA
| | - Yasar Yousafzai
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Gunnar Cario
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Martin Schrappe
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Markus Müschen
- Department of Systems Biology and City of Hope Comprehensive Cancer Center, Monrovia, CA, USA
| | - Christina Halsey
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Medhanie A Mulaw
- Institute of Experimental Cancer Research, Medical Faculty, University of Ulm, Ulm, Germany
| | - Denis M Schewe
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Elias Hobeika
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Ameera Alsadeq
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Hassan Jumaa
- Institute of Immunology, Ulm University Medical Center, 89081, Ulm, Germany.
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5
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Heckl BC, Carlet M, Vick B, Roolf C, Alsadeq A, Grunert M, Liu WH, Liebl A, Hiddemann W, Marschalek R, Schewe DM, Spiekermann K, Junghanss C, Jeremias I. Frequent and reliable engraftment of certain adult primary acute lymphoblastic leukemias in mice. Leuk Lymphoma 2018; 60:848-851. [DOI: 10.1080/10428194.2018.1509314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Birgitta Christine Heckl
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Michela Carlet
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Binje Vick
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site, Munich, Germany
| | - Catrin Roolf
- Department of Medicine III – Hematology, Oncology and Palliative Care, Rostock University Medical Center, Rostock, Germany
| | - Ameera Alsadeq
- Pediatric Hematology/Oncology, ALL-BFM Study Group, Christian Albrechts University Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Michaela Grunert
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Wen-Hsin Liu
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Andrea Liebl
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Wolfgang Hiddemann
- German Cancer Consortium (DKTK), Partner Site, Munich, Germany
- Department of Medicine III, University Hospital, LMU, Munich, Germany
| | - Rolf Marschalek
- Institute of Pharmaceutical Biology, Goethe University, Frankfurt, Germany
| | - Denis Martin Schewe
- Pediatric Hematology/Oncology, ALL-BFM Study Group, Christian Albrechts University Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Karsten Spiekermann
- German Cancer Consortium (DKTK), Partner Site, Munich, Germany
- Department of Medicine III, University Hospital, LMU, Munich, Germany
| | - Christian Junghanss
- Department of Medicine III – Hematology, Oncology and Palliative Care, Rostock University Medical Center, Rostock, Germany
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells (AHS), Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site, Munich, Germany
- Department of Pediatrics, Dr. von Hauner Children’s Hospital, Ludwig Maximilians University (LMU), Munich, Germany
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6
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Affiliation(s)
- Ameera Alsadeq
- Institute of Immunology, University Medical Center Ulm, Germany
| | - Denis M Schewe
- Department of Pediatrics I, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
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7
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Fedders H, Alsadeq A, Schmäh J, Vogiatzi F, Zimmermann M, Möricke A, Lenk L, Stadt UZ, Horstmann MA, Pieters R, Schrappe M, Stanulla M, Cario G, Schewe DM. The role of constitutive activation of FMS-related tyrosine kinase-3 and NRas/KRas mutational status in infants with KMT2A-rearranged acute lymphoblastic leukemia. Haematologica 2017; 102:e438-e442. [PMID: 28838992 DOI: 10.3324/haematol.2017.169870] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Henning Fedders
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Ameera Alsadeq
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Juliane Schmäh
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Fotini Vogiatzi
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | | | - Anja Möricke
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Lennart Lenk
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Udo Zur Stadt
- Research Institute Children's Cancer Center and Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Germany
| | - Martin A Horstmann
- Research Institute Children's Cancer Center and Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Germany
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Martin Schrappe
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Martin Stanulla
- Pediatric Hematology and Oncology, Hannover Medical School, Germany
| | - Gunnar Cario
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Denis M Schewe
- Department of Pediatrics, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
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8
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Alsadeq A, Jumaa H. Dangerous fusions: a path to cancer for arrested lymphoid progenitors. EMBO J 2017; 36:705-706. [PMID: 28275012 DOI: 10.15252/embj.201796686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Ameera Alsadeq
- Institute of Immunology, Medical Center Ulm, Ulm, Germany
| | - Hassan Jumaa
- Institute of Immunology, Medical Center Ulm, Ulm, Germany
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9
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Alsadeq A, Fedders H, Vokuhl C, Belau NM, Zimmermann M, Wirbelauer T, Spielberg S, Vossen-Gajcy M, Cario G, Schrappe M, Schewe DM. The role of ZAP70 kinase in acute lymphoblastic leukemia infiltration into the central nervous system. Haematologica 2016; 102:346-355. [PMID: 27686375 DOI: 10.3324/haematol.2016.147744] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 09/22/2016] [Indexed: 12/25/2022] Open
Abstract
Central nervous system infiltration and relapse are poorly understood in childhood acute lymphoblastic leukemia. We examined the role of zeta-chain-associated protein kinase 70 in preclinical models of central nervous system leukemia and performed correlative studies in patients. Zeta-chain-associated protein kinase 70 expression in acute lymphoblastic leukemia cells was modulated using short hairpin ribonucleic acid-mediated knockdown or ectopic expression. We show that zeta-chain-associated protein kinase 70 regulates CCR7/CXCR4 via activation of extracellular signal-regulated kinases. High expression of zeta-chain-associated protein kinase 70 in acute lymphoblastic leukemia cells resulted in a higher proportion of central nervous system leukemia in xenografts as compared to zeta-chain-associated protein kinase 70 low expressing counterparts. High zeta-chain-associated protein kinase 70 also enhanced the migration potential towards CCL19/CXCL12 gradients in vitro CCR7 blockade almost abrogated homing of acute lymphoblastic leukemia cells to the central nervous system in xenografts. In 130 B-cell precursor acute lymphoblastic leukemia and 117 T-cell acute lymphoblastic leukemia patients, zeta-chain-associated protein kinase 70 and CCR7/CXCR4 expression levels were significantly correlated. Zeta-chain-associated protein kinase 70 expression correlated with central nervous system disease in B-cell precursor acute lymphoblastic leukemia, and CCR7/CXCR4 correlated with central nervous system involvement in T-cell acute lymphoblastic leukemia patients. In multivariate analysis, zeta-chain-associated protein kinase 70 expression levels in the upper third and fourth quartiles were associated with central nervous system involvement in B-cell precursor acute lymphoblastic leukemia (odds ratio=7.48, 95% confidence interval, 2.06-27.17; odds ratio=6.86, 95% confidence interval, 1.86-25.26, respectively). CCR7 expression in the upper fourth quartile correlated with central nervous system positivity in T-cell acute lymphoblastic leukemia (odds ratio=11.00, 95% confidence interval, 2.00-60.62). We propose zeta-chain-associated protein kinase 70, CCR7 and CXCR4 as markers of central nervous system infiltration in acute lymphoblastic leukemia warranting prospective investigation.
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Affiliation(s)
- Ameera Alsadeq
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Henning Fedders
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Christian Vokuhl
- Kiel Pediatric Tumor Registry, Department of Pediatric Pathology, University Medical Center Schleswig-Holstein, Germany
| | - Nele M Belau
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | | | - Tim Wirbelauer
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Steffi Spielberg
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Michaela Vossen-Gajcy
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Gunnar Cario
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Martin Schrappe
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Denis M Schewe
- Department of General Pediatrics, ALL-BFM Study Group, Christian-Albrechts University Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
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Alsadeq A, Fedders H, Petersen BS, Kellner C, Peipp M, Bulduk M, Valerius T, Häsler R, Alten J, Möricke A, Strube S, Wiesel T, Cario G, Schrappe M, Franke A, Stanulla M, Schewe DM. A Case of Concordant Twins with Infant ALL and Discordant Clinical Outcome – Part II: highlights on an immunoescape phenotype as a potential mechanism of disease persistence. Klin Padiatr 2015. [DOI: 10.1055/s-0035-1550250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fedders H, Petersen BS, Alsadeq A, Kellner C, Peipp M, Bulduk M, Valerius T, Häsler R, Alten J, Möricke A, Strube S, Wiesel T, Cario G, Schrappe M, Franke A, Stanulla M, Schewe DM. A Case of Concordant Twins with Infant ALL and Discordant Clinical Outcome – Part I: the genetic basis – identification of DSC2 as a gene with prognostic impact in infant MLL-rearranged ALL. Klin Padiatr 2015. [DOI: 10.1055/s-0035-1550248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hobeika E, Levit-Zerdoun E, Anastasopoulou V, Pohlmeyer R, Altmeier S, Alsadeq A, Dobenecker MW, Pelanda R, Reth M. CD19 and BAFF-R can signal to promote B-cell survival in the absence of Syk. EMBO J 2015; 34:925-39. [PMID: 25630702 PMCID: PMC4388600 DOI: 10.15252/embj.201489732] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 12/23/2014] [Accepted: 01/02/2015] [Indexed: 01/11/2023] Open
Abstract
The development and function of B lymphocytes is regulated by numerous signaling pathways, some emanating from the B-cell antigen receptor (BCR). The spleen tyrosine kinase (Syk) plays a central role in the activation of the BCR, but less is known about its contribution to the survival and maintenance of mature B cells. We generated mice with an inducible and B-cell-specific deletion of the Syk gene and found that a considerable fraction of mature Syk-negative B cells can survive in the periphery for an extended time. Syk-negative B cells are defective in BCR, RP105 and CD38 signaling but still respond to an IL-4, anti-CD40, CpG or LPS stimulus. Our in vivo experiments show that Syk-deficient B cells require BAFF receptor and CD19/PI3K signaling for their long-term survival. These studies also shed a new light on the signals regulating the maintenance of the normal mature murine B-cell pool.
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Affiliation(s)
- Elias Hobeika
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany Department of Molecular Immunology, BioIII, Faculty of Biology, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Ella Levit-Zerdoun
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | | | - Roland Pohlmeyer
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Simon Altmeier
- Institute of Mircobiology, Swiss Federal Institute of Technology, ETH Zurich, Zurich, Switzerland
| | - Ameera Alsadeq
- Department of General Pediatrics, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Marc-Werner Dobenecker
- Laboratory of Immune Cell Epigenetics and Signaling, The Rockefeller University, New York, NY, USA
| | - Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Michael Reth
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany Department of Molecular Immunology, BioIII, Faculty of Biology, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany BIOSS, Centre For Biological Signaling Studies, University of Freiburg, Freiburg, Germany
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Alsadeq A, Hobeika E, Medgyesi D, Kläsener K, Reth M. The role of the Syk/Shp-1 kinase-phosphatase equilibrium in B cell development and signaling. J Immunol 2014; 193:268-76. [PMID: 24899508 DOI: 10.4049/jimmunol.1203040] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Signal transduction from the BCR is regulated by the equilibrium between kinases (e.g., spleen tyrosine kinase [Syk]) and phosphatases (e.g., Shp-1). Previous studies showed that Syk-deficient B cells have a developmental block at the pro/pre-B cell stage, whereas a B cell-specific Shp-1 deficiency promoted B-1a cell development and led to autoimmunity. We generated B cell-specific Shp-1 and Syk double-knockout (DKO) mice and compared them to the single-knockout mice deficient for either Syk or Shp-1. Unlike Syk-deficient mice, the DKO mice can generate mature B cells, albeit at >20-fold reduced B cell numbers. The DKO B-2 cells are all Syk-negative, whereas the peritoneal B1 cells of the DKO mice still express Syk, indicating that they require this kinase for their proper development. The DKO B-2 cells cannot be stimulated via the BCR, whereas they are efficiently activated via TLR or CD40. We also found that in DKO pre-B cells, the kinase Zap70 is associated with the pre-BCR, suggesting that Zap70 is important to promote B cell maturation in the absence of Syk and SHP-1. Together, our data show that a properly balanced kinase/phosphatase equilibrium is crucial for normal B cell development and function.
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Affiliation(s)
- Ameera Alsadeq
- Department of Molecular Immunology, Max-Planck-Institut of Immunobiology and Epigenetics, Freiburg 79108, Germany; Biology III, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany; and BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany
| | - Elias Hobeika
- Department of Molecular Immunology, Max-Planck-Institut of Immunobiology and Epigenetics, Freiburg 79108, Germany; Biology III, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany
| | - David Medgyesi
- Department of Molecular Immunology, Max-Planck-Institut of Immunobiology and Epigenetics, Freiburg 79108, Germany; Biology III, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany
| | - Kathrin Kläsener
- Department of Molecular Immunology, Max-Planck-Institut of Immunobiology and Epigenetics, Freiburg 79108, Germany; Biology III, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany
| | - Michael Reth
- Department of Molecular Immunology, Max-Planck-Institut of Immunobiology and Epigenetics, Freiburg 79108, Germany; Biology III, Faculty of Biology, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany; and BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University Freiburg, Freiburg 79108, Germany
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Alsadeq A, Strube S, Krause S, Carlet M, Jeremias I, Vokuhl C, Loges S, Aguirre-Ghiso JA, Cario G, Stanulla M, Schrappe M, Schewe DM. Regulating the activity of p38α/β as a potential therapy against childhood acute lymphoblastic leukemia. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1374829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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