1
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Østergaard A, Enshaei A, Pieters R, Vora A, Horstmann MA, Escherich G, Johansson B, Heyman M, Schmiegelow K, Hoogerbrugge PM, den Boer ML, Kuiper RP, Moorman AV, Boer JM, van Leeuwen FN. The Prognostic Effect of IKZF1 Deletions in ETV6:: RUNX1 and High Hyperdiploid Childhood Acute Lymphoblastic Leukemia. Hemasphere 2023; 7:e875. [PMID: 37153875 PMCID: PMC10162793 DOI: 10.1097/hs9.0000000000000875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 03/09/2023] [Indexed: 05/10/2023] Open
Abstract
IKZF1 deletions are an established prognostic factor in childhood acute lymphoblastic leukemia (ALL). However, their relevance in patients with good risk genetics, namely ETV6::RUNX1 and high hyperdiploid (HeH), ALL remains unclear. We assessed the prognostic impact of IKZF1 deletions in 939 ETV6::RUNX1 and 968 HeH ALL patients by evaluating data from 16 trials from 9 study groups. Only 3% of ETV6::RUNX1 cases (n = 26) were IKZF1-deleted; this adversely affected survival combining all trials (5-year event-free survival [EFS], 79% versus 92%; P = 0.02). No relapses occurred among the 14 patients with an IKZF1 deletion treated on a minimal residual disease (MRD)-guided protocols. Nine percent of HeH cases (n = 85) had an IKZF1 deletion; this adversely affected survival in all trials (5-year EFS, 76% versus 89%; P = 0.006) and in MRD-guided protocols (73% versus 88%; P = 0.004). HeH cases with an IKZF1 deletion had significantly higher end of induction MRD values (P = 0.03). Multivariate Cox regression showed that IKZF1 deletions negatively affected survival independent of sex, age, and white blood cell count at diagnosis in HeH ALL (hazard ratio of relapse rate [95% confidence interval]: 2.48 [1.32-4.66]). There was no evidence to suggest that IKZF1 deletions affected outcome in the small number of ETV6::RUNX1 cases in MRD-guided protocols but that they are related to higher MRD values, higher relapse, and lower survival rates in HeH ALL. Future trials are needed to study whether stratifying by MRD is adequate for HeH patients or additional risk stratification is necessary.
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Affiliation(s)
- Anna Østergaard
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
| | - Amir Enshaei
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | - Ajay Vora
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - Martin A. Horstmann
- Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- University Medical Center Hamburg, Research Institute Children’s Cancer Center, Hamburg, Germany
| | - Gabriele Escherich
- Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bertil Johansson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Sweden
- Department of Clinical Genetics, Pathology, and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden
| | - Mats Heyman
- Childhood Cancer Research Unit, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Denmark
| | | | - Monique L. den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
| | - Roland P. Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Department of Genetics, University Medical Center Utrecht, Netherlands
| | - Anthony V. Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Judith M. Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
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2
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Velayutham N, Calderon MU, Alfieri CM, Padula SL, van Leeuwen FN, Scheijen B, Yutzey KE. Btg1 and Btg2 regulate neonatal cardiomyocyte cell cycle arrest. J Mol Cell Cardiol 2023; 179:30-41. [PMID: 37062247 DOI: 10.1016/j.yjmcc.2023.03.016] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/18/2023]
Abstract
Rodent cardiomyocytes undergo mitotic arrest in the first postnatal week. Here, we investigate the role of transcriptional co-regulator Btg2 (B-cell translocation gene 2) and functionally-similar homolog Btg1 in postnatal cardiomyocyte cell cycling and maturation. Btg1 and Btg2 (Btg1/2) are expressed in neonatal C57BL/6 mouse left ventricles coincident with cardiomyocyte cell cycle arrest. Btg1/2 constitutive double knockout (DKO) mouse hearts exhibit increased pHH3+ mitotic cardiomyocytes compared to Wildtype at postnatal day (P)7, but not at P30. Similarly, neonatal AAV9-mediated Btg1/2 double knockdown (DKD) mouse hearts exhibit increased EdU+ mitotic cardiomyocytes compared to Scramble AAV9-shRNA controls at P7, but not at P14. In neonatal rat ventricular myocyte (NRVM) cultures, siRNA-mediated Btg1/2 single and double knockdown cohorts showed increased EdU+ cardiomyocytes compared to Scramble siRNA controls, without increase in binucleation or nuclear DNA content. RNAseq analyses of Btg1/2-depleted NRVMs support a role for Btg1/2 in inhibiting cell proliferation, and in modulating reactive oxygen species response pathways, implicated in neonatal cardiomyocyte cell cycle arrest. Together, these data identify Btg1 and Btg2 as novel contributing factors in mammalian cardiomyocyte cell cycle arrest after birth.
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Affiliation(s)
- Nivedhitha Velayutham
- Molecular and Developmental Biology Graduate Program, Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA; The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Maria Uscategui Calderon
- Molecular and Developmental Biology Graduate Program, Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA; The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Christina M Alfieri
- The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Stephanie L Padula
- The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | | | - Katherine E Yutzey
- Molecular and Developmental Biology Graduate Program, Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA; The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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3
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Butler M, Vervoort BM, van Ingen Schenau DS, Jongeneel L, van der Zwet JC, Marke R, Meijerink JP, Scheijen B, van der Meer LT, van Leeuwen FN. Reversal of IKZF1-induced glucocorticoid resistance by dual targeting of AKT and ERK signaling pathways. Front Oncol 2022; 12:905665. [PMID: 36119546 PMCID: PMC9478899 DOI: 10.3389/fonc.2022.905665] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Although long-term survival in pediatric acute lymphoblastic leukemia (ALL) currently exceeds 90%, some subgroups, defined by specific genomic aberrations, respond poorly to treatment. We previously reported that leukemias harboring deletions or mutations affecting the B-cell transcription factor IKZF1 exhibit a tumor cell intrinsic resistance to glucocorticoids (GCs), one of the cornerstone drugs used in the treatment of ALL. Here, we identified increased activation of both AKT and ERK signaling pathways as drivers of GC resistance in IKZF1-deficient leukemic cells. Indeed, combined pharmacological inhibition of AKT and ERK signaling effectively reversed GC resistance in IKZF1-deficient leukemias. As inhibitors for both pathways are under clinical investigation, their combined use may enhance the efficacy of prednisolone-based therapy in this high-risk patient group.
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Affiliation(s)
- Miriam Butler
- Princess Maxima Center for Pediatric Oncology, Utrecht, Netherlands
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | | | | | | | - René Marke
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Blanca Scheijen
- Department of Pathology, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Institute for Molecular Life Sciences, Nijmegen, Netherlands
| | | | - Frank N. van Leeuwen
- Princess Maxima Center for Pediatric Oncology, Utrecht, Netherlands
- *Correspondence: Frank N. van Leeuwen,
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4
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Antić Ž, Yu J, Bornhauser BC, Lelieveld SH, van der Ham CG, van Reijmersdal SV, Morgado L, Elitzur S, Bourquin JP, Cazzaniga G, Eckert C, Camós M, Sutton R, Cavé H, Moorman AV, Sonneveld E, Geurts van Kessel A, van Leeuwen FN, Hoogerbrugge PM, Waanders E, Kuiper RP. Clonal dynamics in pediatric B-cell precursor acute lymphoblastic leukemia with very early relapse. Pediatr Blood Cancer 2022; 69:e29361. [PMID: 34597466 DOI: 10.1002/pbc.29361] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/18/2021] [Accepted: 08/31/2021] [Indexed: 01/08/2023]
Abstract
INTRODUCTION One-quarter of the relapses in children with B-cell precursor acute lymphoblastic leukemia (BCP-ALL) occur very early (within 18 months, before completion of treatment), and prognosis in these patients is worse compared to cases that relapse after treatment has ended. METHODS In this study, we performed a genomic analysis of diagnosis-relapse pairs of 12 children who relapsed very early, followed by a deep-sequencing validation of all identified mutations. In addition, we included one case with a good initial treatment response and on-treatment relapse at the end of upfront therapy. RESULTS We observed a dynamic clonal evolution in all cases, with relapse almost exclusively originating from a subclone at diagnosis. We identified several driver mutations that may have influenced the outgrowth of a minor clone at diagnosis to become the major clone at relapse. For example, a minimal residual disease (MRD)-based standard-risk patient with ETV6-RUNX1-positive leukemia developed a relapse from a TP53-mutated subclone after loss of the wildtype allele. Furthermore, two patients with TCF3-PBX1-positive leukemia that developed a very early relapse carried E1099K WHSC1 mutations at diagnosis, a hotspot mutation that was recurrently encountered in other very early TCF3-PBX1-positive leukemia relapses as well. In addition to alterations in known relapse drivers, we found two cases with truncating mutations in the cohesin gene RAD21. CONCLUSION Comprehensive genomic characterization of diagnosis-relapse pairs shows that very early relapses in BCP-ALL frequently arise from minor subclones at diagnosis. A detailed understanding of the therapeutic pressure driving these events may aid the development of improved therapies.
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Affiliation(s)
- Željko Antić
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Jiangyan Yu
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Beat C Bornhauser
- Department of Oncology and Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | | | | | - Simon V van Reijmersdal
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lionel Morgado
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Sarah Elitzur
- Pediatric Hematology-Oncology, Schneider Children's Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jean-Pierre Bourquin
- Department of Oncology and Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Giovanni Cazzaniga
- Centro Ricerca Tettamanti, Fondazione Tettamanti, University of Milan Bicocca, Monza, Italy
| | - Cornelia Eckert
- Pediatric Oncology/Hematology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Mireia Camós
- Leukemia and Other Pediatric Hemopathies, Developmental Tumor Biology Group, Institut de Recerca Sant Joan de Déu, Barcelona, Spain.,Hematology Laboratory, Hospital Sant Joan de Deu Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Rosemary Sutton
- Molecular Diagnostics, Children's Cancer Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Hélène Cavé
- Department of Genetics, Robert Debré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,INSERM U1131, Saint-Louis Research Institute, University of Paris, Paris, France
| | - Anthony V Moorman
- Wolfson Childhood Cancer Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Edwin Sonneveld
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Dutch Childhood Oncology Group, Utrecht, The Netherlands
| | - Ad Geurts van Kessel
- Department of Human Genetics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Peter M Hoogerbrugge
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Dutch Childhood Oncology Group, Utrecht, The Netherlands
| | - Esmé Waanders
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roland P Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
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5
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Velayutham N, van Leeuwen FN, Scheijen B, Yutzey KE. Abstract P448: Role For Btg1 And Btg2 In Postnatal Cardiomyocyte Cell Cycle Arrest And Maturation. Circ Res 2021. [DOI: 10.1161/res.129.suppl_1.p448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Adult mammalian cardiomyocytes (CM) are predominantly post-mitotic and cannot proliferatively repair the heart following myocardial infarction (MI). Overexpression of the transcription factor Tbx20 in adult mouse CMs promotes proliferative cardiac repair post-MI, via mechanisms including direct repression of anti-proliferative genes
p21
,
Meis1
, and
Btg2
. Btg2 (B-cell translocation gene 2), a tumor suppressor and transcriptional co-regulator, exhibits high structural and functional similarity with Btg1. However, both Btg1 and Btg2 (Btg1/2) are virtually uncharacterized in the heart. Here, we investigate the role of Btg1/2 in postnatal cardiac maturation.
Methods and Results:
By immunostaining in embryonic, neonatal, and adult C57BL/6 mouse hearts, the highest expression of Btg1/2 was observed in late fetal and early neonatal ventricles, concurrent with upregulation of other CM cell cycle inhibitors. In neonatal mouse CMs
in vitro,
siRNA-mediated loss of Btg2 leads to increased CM proliferation.
In vivo
, Btg1/2 constitutive single- and double- knockout (SKO and DKO respectively) mice exhibit normal heart weight-to-body weight ratios compared to age-matched wildtype (WT) controls, at postnatal day (P)7, P30, and 1 year after birth. Interestingly, at P7, DKO mice have significantly higher CM mitotic activity, as indicated by pHH3 staining, compared to WT. In addition, DKO mice also exhibit significantly smaller CM cross-sectional area at P7 compared to WT. However, by P15, CM mitotic activity and cell size are comparable between WT and Btg1/2 KO mice. Currently, siRNA-mediated knockdown of Btg1/2 in neonatal rat ventricular cardiomyocyte cultures and RNAseq studies are being performed, to assess the transcriptional regulatory roles of Btg1/2 in rodent CMs.
Conclusions:
Here, we highlight two novel regulators of postnatal CM maturation, Btg1 and Btg2, which are upregulated coincident with CM mitotic arrest in mice. Similar to p21 and Meis1, Btg1/2 depletion in mice induces a brief period of increased CM proliferative activity before onset of CM cell cycle arrest. Our results provide evidence for Btg1/2 working in tandem with other cardiac transcription factors and cell cycle regulators, to control CM mitotic arrest after birth.
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6
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Kuiper RP, Hoogeveen PG, Bladergroen R, van Dijk F, Sonneveld E, van Leeuwen FN, Boer J, Sergeeva I, Feitsma H, den Boer ML, van der Velden VHJ. Minimal residual disease (MRD) detection in acute lymphoblastic leukaemia based on fusion genes and genomic deletions: towards MRD for all. Br J Haematol 2021; 194:888-892. [PMID: 34337744 PMCID: PMC9291030 DOI: 10.1111/bjh.17744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/24/2021] [Accepted: 07/18/2021] [Indexed: 12/16/2022]
Abstract
Minimal residual disease (MRD) diagnostics are implemented in most clinical protocols for patients with acute lymphoblastic leukaemia (ALL) and are mostly performed using rearranged immunoglobulin (IG) and/or T-cell receptor (TR) gene rearrangements as molecular polymerase chain reaction targets. Unfortunately, in 5-10% of patients no or no sensitive IG/TR targets are available, and patients therefore cannot be stratified appropriately. In the present study, we used fusion genes and genomic deletions as alternative MRD targets in these patients, which retrospectively revealed appropriate MDR stratification in 79% of patients with no (sensitive) IG/TR target, and a different risk group stratification in more than half of the cases.
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Affiliation(s)
- Roland P Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Patricia G Hoogeveen
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Reno Bladergroen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Freerk van Dijk
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Edwin Sonneveld
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | - Judith Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,Oncode Institute, Utrecht, the Netherlands
| | | | | | - Monique L den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.,Oncode Institute, Utrecht, the Netherlands.,Department of Pediatric Oncology, Erasmus MC - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Vincent H J van der Velden
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
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7
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Butler M, van der Meer LT, van Leeuwen FN. Amino Acid Depletion Therapies: Starving Cancer Cells to Death. Trends Endocrinol Metab 2021; 32:367-381. [PMID: 33795176 DOI: 10.1016/j.tem.2021.03.003] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/25/2021] [Accepted: 03/09/2021] [Indexed: 01/01/2023]
Abstract
Targeting tumor cell metabolism is an attractive form of therapy, as it may enhance treatment response in therapy resistant cancers as well as mitigate treatment-related toxicities by reducing the need for genotoxic agents. To meet their increased demand for biomass accumulation and energy production and to maintain redox homeostasis, tumor cells undergo profound changes in their metabolism. In addition to the diversion of glucose metabolism, this is achieved by upregulation of amino acid metabolism. Interfering with amino acid availability can be selectively lethal to tumor cells and has proven to be a cancer specific Achilles' heel. Here we review the biology behind such cancer specific amino acid dependencies and discuss how these vulnerabilities can be exploited to improve cancer therapies.
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Affiliation(s)
- Miriam Butler
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
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8
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9
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Vrenken KS, Vervoort BMT, van Ingen Schenau DS, Derks YHW, van Emst L, Grytsenko PG, Middelbeek JAJ, van Leeuwen FN. The transcriptional repressor SNAI2 impairs neuroblastoma differentiation and inhibits response to retinoic acid therapy. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165644. [PMID: 31862304 DOI: 10.1016/j.bbadis.2019.165644] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 12/03/2019] [Accepted: 12/14/2019] [Indexed: 02/07/2023]
Abstract
Neuroblastoma is the most common extracranial solid tumor in children and originates from poorly differentiated neural crest progenitors. High-risk neuroblastoma patients frequently present with metastatic disease at diagnosis. Despite intensive treatment, patients often develop refractory disease characterized by poorly differentiated, therapy resistant cells. Although adjuvant therapy using retinoic acid (RA)-induced differentiation may increase event-free survival, in the majority of cases response to RA-therapy is inadequate. Consequently, current research aims to identify novel therapeutic targets that enhance the sensitivity to RA and induce neuroblastoma cell differentiation. The similarities between neural crest development and neuroblastoma progression provide an appealing starting point. During neural crest development the EMT-transcription factor SNAI2 plays an important role in neural crest specification as well as neural crest cell migration and survival. Here, we report that CRISPR/Cas9 mediated deletion as well as shRNA mediated knockdown of the EMT-transcription factor SNAI2 promotes cellular differentiation in a variety of neuroblastoma models. By comparing mRNA expression data from independent patient cohorts, we show that a SNAI2 activity-based gene expression signature significantly correlates with event-free survival. Loss of SNAI2 function reduces self-renewal, 3D invasion as well as metastatic spread in vivo, while strongly sensitizing neuroblastoma cells to RA-induced growth inhibition. Together, our data demonstrate that SNAI2 maintains progenitor-like features in neuroblastoma cells while interfering with RA-induced growth inhibition. We propose that targeting gene regulatory circuits, such as those controlling SNAI2 function, may allow reversion of RA-therapy resistant neuroblastoma cells to a more differentiated and therapy responsive phenotype.
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Affiliation(s)
- Kirsten S Vrenken
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Britt M T Vervoort
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Dorette S van Ingen Schenau
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Yvonne H W Derks
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Liesbeth van Emst
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Pavlo G Grytsenko
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jeroen A J Middelbeek
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Frank N van Leeuwen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.
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10
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Yuniati L, Scheijen B, van der Meer LT, van Leeuwen FN. Tumor suppressors BTG1 and BTG2: Beyond growth control. J Cell Physiol 2018; 234:5379-5389. [PMID: 30350856 PMCID: PMC6587536 DOI: 10.1002/jcp.27407] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [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: 11/22/2017] [Accepted: 08/22/2018] [Indexed: 01/21/2023]
Abstract
Since the identification of B‐cell translocation gene 1 (BTG1) and BTG2 as antiproliferation genes more than two decades ago, their protein products have been implicated in a variety of cellular processes including cell division, DNA repair, transcriptional regulation and messenger RNA stability. In addition to affecting differentiation during development and in the adult, BTG proteins play an important role in maintaining homeostasis under conditions of cellular stress. Genomic profiling of B‐cell leukemia and lymphoma has put BTG1 and BTG2 in the spotlight, since both genes are frequently deleted or mutated in these malignancies, pointing towards a role as tumor suppressors. Moreover, in solid tumors, reduced expression of BTG1 or BTG2 is often correlated with malignant cell behavior and poor treatment outcome. Recent studies have uncovered novel roles for BTG1 and BTG2 in genotoxic and integrated stress responses, as well as during hematopoiesis. This review summarizes what is currently known about the roles of BTG1 and BTG2 in these and other cellular processes. In addition, we will highlight the molecular mechanisms and biological consequences of BTG1 and BTG2 deregulation during cancer progression and elaborate on the potential clinical implications of these findings.
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Affiliation(s)
- Laurensia Yuniati
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands.,Hubrecht Institute-KNAW, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
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11
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Tijchon E, van Emst L, Yuniati L, van Ingen Schenau D, Gerritsen M, van der Meer LT, Williams O, Hoogerbrugge PM, Scheijen B, van Leeuwen FN. Tumor suppressor BTG1 limits activation of BCL6 expression downstream of ETV6-RUNX1. Exp Hematol 2018; 60:57-62.e3. [PMID: 29408281 DOI: 10.1016/j.exphem.2018.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/10/2018] [Accepted: 01/20/2018] [Indexed: 11/28/2022]
Abstract
Translocation t(12;21) (p13;q22), giving rise to the ETV6-RUNX1 fusion gene, is the most common genetic abnormality in childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL). This translocation usually arises in utero, but its expression is insufficient to induce leukemia and requires other cooperating genetic lesions for BCP-ALL to develop. Deletions affecting the transcriptional coregulator BTG1 are frequently observed in ETV6-RUNX1-positive leukemia. Here we report that Btg1 deficiency enhances the self-renewal capacity of ETV6-RUNX1-positive mouse fetal liver-derived hematopoietic progenitors (FL-HPCs). Combined expression of the fusion protein and a loss of BTG1 drive upregulation of the proto-oncogene Bcl6 and downregulation of BCL6 target genes, such as p19Arf and Tp53. Similarly, ectopic expression of BCL6 promotes the self-renewal and clonogenic replating capacity of FL-HPCs, by suppressing the expression of p19Arf and Tp53. Together these results identify BCL6 as a potential driver of ETV6-RUNX1-mediated leukemogenesis, which could involve loss of BTG1-dependent suppression of ETV6-RUNX1 function.
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Affiliation(s)
- Esther Tijchon
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Liesbeth van Emst
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurensia Yuniati
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Mylène Gerritsen
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Owen Williams
- Molecular Haematology and Cancer Biology Unit, UCL-Institute of Child Health, London, United Kingdom
| | | | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, The Netherlands.
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12
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Abstract
Transcription factor IKZF1 (IKAROS) acts as a critical regulator of lymphoid differentiation and is frequently deleted or mutated in B-cell precursor acute lymphoblastic leukemia. IKZF1 gene defects are associated with inferior treatment outcome in both childhood and adult B-cell precursor acute lymphoblastic leukemia and occur in more than 70% of BCR-ABL1-positive and BCR-ABL1-like cases of acute lymphoblastic leukemia. Over the past few years, much has been learned about the tumor suppressive function of IKZF1 during leukemia development and the molecular pathways that relate to its impact on treatment outcome. In this review, we provide a concise overview on the role of IKZF1 during normal lymphopoiesis and the pathways that contribute to leukemia pathogenesis as a consequence of altered IKZF1 function. Furthermore, we discuss different mechanisms by which IKZF1 alterations impose therapy resistance on leukemic cells, including enhanced cell adhesion and modulation of glucocorticoid response.
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Affiliation(s)
- René Marke
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud University Medical Center, Nijmegen, the Netherlands .,Department of Pathology, Radboud University Medical Center; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, the Netherlands
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13
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Wortel IMN, van der Meer LT, Kilberg MS, van Leeuwen FN. Surviving Stress: Modulation of ATF4-Mediated Stress Responses in Normal and Malignant Cells. Trends Endocrinol Metab 2017; 28:794-806. [PMID: 28797581 PMCID: PMC5951684 DOI: 10.1016/j.tem.2017.07.003] [Citation(s) in RCA: 318] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/06/2017] [Accepted: 07/10/2017] [Indexed: 01/14/2023]
Abstract
Activating transcription factor 4 (ATF4) is a stress-induced transcription factor that is frequently upregulated in cancer cells. ATF4 controls the expression of a wide range of adaptive genes that allow cells to endure periods of stress, such as hypoxia or amino acid limitation. However, under persistent stress conditions, ATF4 promotes the induction of apoptosis. Recent advances point to a role for post-translational modifications (PTMs) and epigenetic mechanisms in balancing these pro- and anti-survival effects of ATF4. We review here how PTMs and epigenetic modifiers associated with ATF4 may be exploited by cancer cells to cope with cellular stress conditions that are intrinsically associated with tumor growth. Identification of mechanisms that modulate ATF4-mediated transcription and its effects on cellular metabolism may uncover new targets for cancer treatment.
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Affiliation(s)
- Inge M N Wortel
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud university medical center, Nijmegen, The Netherlands; Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud university medical center, Nijmegen, The Netherlands
| | - Michael S Kilberg
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine, Gainesville, FL 32610-0245, USA.
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud university medical center, Nijmegen, The Netherlands.
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14
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Katerndahl CDS, Heltemes-Harris LM, Willette MJL, Henzler CM, Frietze S, Yang R, Schjerven H, Silverstein KAT, Ramsey LB, Hubbard G, Wells AD, Kuiper RP, Scheijen B, van Leeuwen FN, Müschen M, Kornblau SM, Farrar MA. Antagonism of B cell enhancer networks by STAT5 drives leukemia and poor patient survival. Nat Immunol 2017; 18:694-704. [PMID: 28369050 PMCID: PMC5540372 DOI: 10.1038/ni.3716] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [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: 08/12/2016] [Accepted: 02/28/2017] [Indexed: 12/14/2022]
Abstract
The transcription factor STAT5 has a critical role in B cell acute lymphoblastic leukemia (B-ALL). How STAT5 mediates this effect is unclear. Here we found that activation of STAT5 worked together with defects in signaling components of the precursor to the B cell antigen receptor (pre-BCR), including defects in BLNK, BTK, PKCβ, NF-κB1 and IKAROS, to initiate B-ALL. STAT5 antagonized the transcription factors NF-κB and IKAROS by opposing regulation of shared target genes. Super-enhancers showed enrichment for STAT5 binding and were associated with an opposing network of transcription factors, including PAX5, EBF1, PU.1, IRF4 and IKAROS. Patients with a high ratio of active STAT5 to NF-κB or IKAROS had more-aggressive disease. Our studies indicate that an imbalance of two opposing transcriptional programs drives B-ALL and suggest that restoring the balance of these pathways might inhibit B-ALL.
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Affiliation(s)
- Casey D S Katerndahl
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lynn M Heltemes-Harris
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mark J L Willette
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christine M Henzler
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Seth Frietze
- MLRS Department, University of Vermont, Burlington, Vermont, USA
| | - Rendong Yang
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Hilde Schjerven
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Kevin A T Silverstein
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Laura B Ramsey
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Gregory Hubbard
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Andrew D Wells
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Roland P Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands.,Department of Pathology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Markus Müschen
- Department of Systems Biology, Beckman Research Institute and City of Hope Comprehensive Cancer Center, Pasadena, California, USA
| | - Steven M Kornblau
- Department of Leukemia, The University of Texas Maryland Anderson Cancer Center, Houston, Texas, USA
| | - Michael A Farrar
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
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15
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Scheijen B, Boer JM, Marke R, Tijchon E, van Ingen Schenau D, Waanders E, van Emst L, van der Meer LT, Pieters R, Escherich G, Horstmann MA, Sonneveld E, Venn N, Sutton R, Dalla-Pozza L, Kuiper RP, Hoogerbrugge PM, den Boer ML, van Leeuwen FN. Tumor suppressors BTG1 and IKZF1 cooperate during mouse leukemia development and increase relapse risk in B-cell precursor acute lymphoblastic leukemia patients. Haematologica 2016; 102:541-551. [PMID: 27979924 PMCID: PMC5394950 DOI: 10.3324/haematol.2016.153023] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 07/19/2016] [Accepted: 12/14/2016] [Indexed: 12/16/2022] Open
Abstract
Deletions and mutations affecting lymphoid transcription factor IKZF1 (IKAROS) are associated with an increased relapse risk and poor outcome in B-cell precursor acute lymphoblastic leukemia. However, additional genetic events may either enhance or negate the effects of IKZF1 deletions on prognosis. In a large discovery cohort of 533 childhood B-cell precursor acute lymphoblastic leukemia patients, we observed that single-copy losses of BTG1 were significantly enriched in IKZF1-deleted B-cell precursor acute lymphoblastic leukemia (P=0.007). While BTG1 deletions alone had no impact on prognosis, the combined presence of BTG1 and IKZF1 deletions was associated with a significantly lower 5-year event-free survival (P=0.0003) and a higher 5-year cumulative incidence of relapse (P=0.005), when compared with IKZF1-deleted cases without BTG1 aberrations. In contrast, other copy number losses commonly observed in B-cell precursor acute lymphoblastic leukemia, such as CDKN2A/B, PAX5, EBF1 or RB1, did not affect the outcome of IKZF1-deleted acute lymphoblastic leukemia patients. To establish whether the combined loss of IKZF1 and BTG1 function cooperate in leukemogenesis, Btg1-deficient mice were crossed onto an Ikzf1 heterozygous background. We observed that loss of Btg1 increased the tumor incidence of Ikzf1+/− mice in a dose-dependent manner. Moreover, murine B cells deficient for Btg1 and Ikzf1+/− displayed increased resistance to glucocorticoids, but not to other chemotherapeutic drugs. Together, our results identify BTG1 as a tumor suppressor in leukemia that, when deleted, strongly enhances the risk of relapse in IKZF1-deleted B-cell precursor acute lymphoblastic leukemia, and augments the glucocorticoid resistance phenotype mediated by the loss of IKZF1 function.
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Affiliation(s)
- Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
| | - Judith M Boer
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - René Marke
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
| | - Esther Tijchon
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
| | | | - Esmé Waanders
- Department of Human Genetics, Radboud university medical center, Nijmegen, the Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Liesbeth van Emst
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Gabriele Escherich
- Research Institute Children's Cancer Center and Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin A Horstmann
- Research Institute Children's Cancer Center and Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Nicola Venn
- Australian and New Zealand Children's Oncology Group, Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales, Sydney, Australia
| | - Rosemary Sutton
- Australian and New Zealand Children's Oncology Group, Children's Cancer Institute Australia, Lowy Cancer Research Centre, University of New South Wales, Sydney, Australia
| | | | - Roland P Kuiper
- Department of Human Genetics, Radboud university medical center, Nijmegen, the Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | - Monique L den Boer
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, the Netherlands
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16
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Yuniati L, van der Meer LT, Tijchon E, van Ingen Schenau D, van Emst L, Levers M, Palit SAL, Rodenbach C, Poelmans G, Hoogerbrugge PM, Shan J, Kilberg MS, Scheijen B, van Leeuwen FN. Tumor suppressor BTG1 promotes PRMT1-mediated ATF4 function in response to cellular stress. Oncotarget 2016; 7:3128-43. [PMID: 26657730 PMCID: PMC4823095 DOI: 10.18632/oncotarget.6519] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 05/25/2015] [Accepted: 11/19/2015] [Indexed: 11/25/2022] Open
Abstract
Cancer cells are frequently exposed to physiological stress conditions such as hypoxia and nutrient limitation. Escape from stress-induced apoptosis is one of the mechanisms used by malignant cells to survive unfavorable conditions. B-cell Translocation Gene 1 (BTG1) is a tumor suppressor that is frequently deleted in acute lymphoblastic leukemia and recurrently mutated in diffuse large B cell lymphoma. Moreover, low BTG1 expression levels have been linked to poor outcome in several solid tumors. How loss of BTG1 function contributes to tumor progression is not well understood. Here, using Btg1 knockout mice, we demonstrate that loss of Btg1 provides a survival advantage to primary mouse embryonic fibroblasts (MEFs) under stress conditions. This pro-survival effect involves regulation of Activating Transcription Factor 4 (ATF4), a key mediator of cellular stress responses. We show that BTG1 interacts with ATF4 and positively modulates its activity by recruiting the protein arginine methyl transferase PRMT1 to methylate ATF4 on arginine residue 239. We further extend these findings to B-cell progenitors, by showing that loss of Btg1 expression enhances stress adaptation of mouse bone marrow-derived B cell progenitors. In conclusion, we have identified the BTG1/PRMT1 complex as a new modifier of ATF4 mediated stress responses.
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Affiliation(s)
- Laurensia Yuniati
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Esther Tijchon
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dorette van Ingen Schenau
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Liesbeth van Emst
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marloes Levers
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sander A L Palit
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Caroline Rodenbach
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Geert Poelmans
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Molecular Animal Physiology, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Peter M Hoogerbrugge
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands.,Prinses Maxima Center for Pediatric Oncology, De Bilt, The Netherlands
| | - Jixiu Shan
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Michael S Kilberg
- Department of Biochemistry and Molecular Biology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
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17
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van der Meer LT, Terry SYA, van Ingen Schenau DS, Andree KC, Franssen GM, Roeleveld DM, Metselaar JM, Reinheckel T, Hoogerbrugge PM, Boerman OC, van Leeuwen FN. In Vivo Imaging of Antileukemic Drug Asparaginase Reveals a Rapid Macrophage-Mediated Clearance from the Bone Marrow. J Nucl Med 2016; 58:214-220. [PMID: 27493268 DOI: 10.2967/jnumed.116.177741] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 07/25/2016] [Indexed: 11/16/2022] Open
Abstract
The antileukemic drug asparaginase, a key component in the treatment of acute lymphoblastic leukemia, acts by depleting asparagine from the blood. However, little is known about its pharmacokinetics, and mechanisms of therapy resistance are poorly understood. Here, we explored the in vivo biodistribution of radiolabeled asparaginase, using a combination of imaging and biochemical techniques, and provide evidence for tissue-specific clearance mechanisms, which could reduce the effectiveness of the drug at these specific sites. METHODS In vivo localization of 111In-labeled Escherichia coli asparaginase was performed in C57BL/6 mice by both small-animal SPECT/CT and ex vivo biodistribution studies. Mice were treated with liposomal clodronate to investigate the effect of macrophage depletion on tracer localization and drug clearance in vivo. Moreover, macrophage cell line models RAW264.7 and THP-1, as well as knockout mice, were used to identify the cellular and molecular components controlling asparaginase pharmacokinetics. RESULTS In vivo imaging and biodistribution studies showed a rapid accumulation of asparaginase in macrophage-rich tissues such as the liver, spleen, and in particular bone marrow. Clodronate-mediated depletion of phagocytic cells markedly prolonged the serum half-life of asparaginase in vivo and decreased drug uptake in these macrophage-rich organs. Immunohistochemistry and in vitro binding assays confirmed the involvement of macrophagelike cells in the uptake of asparaginase. We identified the activity of the lysosomal protease cathepsin B in macrophages as a rate-limiting factor in degrading asparaginase both in vitro and in vivo. CONCLUSION We showed that asparaginase is rapidly cleared from the serum by liver-, spleen-, and bone marrow-resident phagocytic cells. As a consequence of this efficient uptake and protease-mediated degradation, particularly bone marrow-resident macrophages may provide a protective niche to leukemic cells.
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Affiliation(s)
- Laurens T van der Meer
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Samantha Y A Terry
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Division of Imaging Sciences and Biomedical Engineering, Department of Imaging Chemistry and Biology, King's College London, London, United Kingdom
| | - Dorette S van Ingen Schenau
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Kiki C Andree
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gerben M Franssen
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Debbie M Roeleveld
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Experimental Rheumatology, Radboud Insititute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Josbert M Metselaar
- Department of Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH-Aachen University, Aachen, Germany
| | - Thomas Reinheckel
- Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University, Freiburg, Germany.,German Cancer Consortium (DKTK), Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, Albert-Ludwigs-University, Freiburg, Germany; and
| | | | - Otto C Boerman
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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18
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Vrenken KS, Jalink K, van Leeuwen FN, Middelbeek J. Beyond ion-conduction: Channel-dependent and -independent roles of TRP channels during development and tissue homeostasis. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 2016; 1863:1436-46. [DOI: 10.1016/j.bbamcr.2015.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/26/2015] [Accepted: 11/11/2015] [Indexed: 01/09/2023]
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19
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van der Sligte NE, Kampen KR, ter Elst A, Scherpen FJG, Meeuwsen-de Boer TGJ, Guryev V, van Leeuwen FN, Kornblau SM, de Bont ESJM. Essential role for cyclic-AMP responsive element binding protein 1 (CREB) in the survival of acute lymphoblastic leukemia. Oncotarget 2016; 6:14970-81. [PMID: 26008971 PMCID: PMC4558129 DOI: 10.18632/oncotarget.3911] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 01/28/2015] [Accepted: 04/24/2015] [Indexed: 01/27/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) relapse remains a leading cause of cancer related death in children, therefore, new therapeutic options are needed. Recently, we showed that a peptide derived from Cyclic-AMP Responsive Element Binding Protein (CREB) was highly phosphorylated in pediatric leukemias. In this study, we determined CREB phosphorylation and mRNA levels showing that CREB expression was significantly higher in ALL compared to normal bone marrow (phosphorylation: P < 0.0001, mRNA: P = 0.004). High CREB and phospho-CREB expression was correlated with a lower median overall survival in a cohort of 140 adult ALL patients. ShRNA mediated knockdown of CREB in ALL cell lines blocked leukemic cell growth by inducing cell cycle arrest and apoptosis. Gene expression array analysis showed downregulation of CREB target genes regulating cell proliferation and glucose metabolism and upregulation of apoptosis inducing genes. Similar to CREB knockdown, the CREB inhibitor KG-501 decreased leukemic cell viability and induced apoptosis in ALL cell lines, as well as primary T-ALL samples, with cases showing high phospho-CREB levels being more sensitive than those with lower phospho-CREB levels. Together, these in vitro findings support an important role for CREB in the survival of ALL cells and identify this transcription factor as a potential target for treatment.
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Affiliation(s)
- Naomi E van der Sligte
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Kim R Kampen
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Arja ter Elst
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Frank J G Scherpen
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Tiny G J Meeuwsen-de Boer
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Victor Guryev
- European Research Institute for The Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Steven M Kornblau
- Department of Leukemia, The University of Texas, MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Eveline S J M de Bont
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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20
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Tijchon E, van Emst L, Yuniati L, van Ingen Schenau D, Havinga J, Rouault JP, Hoogerbrugge PM, van Leeuwen FN, Scheijen B. Tumor suppressors BTG1 and BTG2 regulate early mouse B-cell development. Haematologica 2016; 101:e272-6. [PMID: 27036158 DOI: 10.3324/haematol.2015.139675] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Esther Tijchon
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Liesbeth van Emst
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Laurensia Yuniati
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | | | - Jørn Havinga
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Jean-Pierre Rouault
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, Université Lyon1, France
| | | | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud University Medical Centre, Nijmegen, the Netherlands
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21
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Middelbeek J, Visser D, Henneman L, Kamermans A, Kuipers AJ, Hoogerbrugge PM, Jalink K, van Leeuwen FN. TRPM7 maintains progenitor-like features of neuroblastoma cells: implications for metastasis formation. Oncotarget 2016; 6:8760-76. [PMID: 25797249 PMCID: PMC4496182 DOI: 10.18632/oncotarget.3315] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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: 12/17/2014] [Accepted: 02/08/2015] [Indexed: 12/18/2022] Open
Abstract
Neuroblastoma is an embryonal tumor derived from poorly differentiated neural crest cells. Current research is aimed at identifying the molecular mechanisms that maintain the progenitor state of neuroblastoma cells and to develop novel therapeutic strategies that induce neuroblastoma cell differentiation. Mechanisms controlling neural crest development are typically dysregulated during neuroblastoma progression, and provide an appealing starting point for drug target discovery. Transcriptional programs involved in neural crest development act as a context dependent gene regulatory network. In addition to BMP, Wnt and Notch signaling, activation of developmental gene expression programs depends on the physical characteristics of the tissue microenvironment. TRPM7, a mechanically regulated TRP channel with kinase activity, was previously found essential for embryogenesis and the maintenance of undifferentiated neural crest progenitors. Hence, we hypothesized that TRPM7 may preserve progenitor-like, metastatic features of neuroblastoma cells. Using multiple neuroblastoma cell models, we demonstrate that TRPM7 expression closely associates with the migratory and metastatic properties of neuroblastoma cells in vitro and in vivo. Moreover, microarray-based expression profiling on control and TRPM7 shRNA transduced neuroblastoma cells indicates that TRPM7 controls a developmental transcriptional program involving the transcription factor SNAI2. Overall, our data indicate that TRPM7 contributes to neuroblastoma progression by maintaining progenitor-like features.
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Affiliation(s)
- Jeroen Middelbeek
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Daan Visser
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Linda Henneman
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alwin Kamermans
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Arthur J Kuipers
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Peter M Hoogerbrugge
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands.,Princes Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, The Netherlands
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22
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Kedziora KM, Leyton-Puig D, Argenzio E, Boumeester AJ, van Butselaar B, Yin T, Wu YI, van Leeuwen FN, Innocenti M, Jalink K, Moolenaar WH. Rapid Remodeling of Invadosomes by Gi-coupled Receptors: DISSECTING THE ROLE OF Rho GTPases. J Biol Chem 2016; 291:4323-33. [PMID: 26740622 DOI: 10.1074/jbc.m115.695940] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Indexed: 01/15/2023] Open
Abstract
Invadosomes are actin-rich membrane protrusions that degrade the extracellular matrix to drive tumor cell invasion. Key players in invadosome formation are c-Src and Rho family GTPases. Invadosomes can reassemble into circular rosette-like superstructures, but the underlying signaling mechanisms remain obscure. Here we show that Src-induced invadosomes in human melanoma cells (A375M and MDA-MB-435) undergo rapid remodeling into dynamic extracellular matrix-degrading rosettes by distinct G protein-coupled receptor agonists, notably lysophosphatidic acid (LPA; acting through the LPA1 receptor) and endothelin. Agonist-induced rosette formation is blocked by pertussis toxin, dependent on PI3K activity and accompanied by localized production of phosphatidylinositol 3,4,5-trisphosphate, whereas MAPK and Ca(2+) signaling are dispensable. Using FRET-based biosensors, we show that LPA and endothelin transiently activate Cdc42 through Gi, concurrent with a biphasic decrease in Rac activity and differential effects on RhoA. Cdc42 activity is essential for rosette formation, whereas G12/13-mediated RhoA-ROCK signaling suppresses the remodeling process. Our results reveal a Gi-mediated Cdc42 signaling axis by which G protein-coupled receptors trigger invadosome remodeling, the degree of which is dictated by the Cdc42-RhoA activity balance.
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Affiliation(s)
| | | | | | | | | | - Taofei Yin
- the Center for Cell Analysis and Modeling, University of Connecticut Health Center, Farmington, Connecticut 06030, and
| | - Yi I Wu
- the Center for Cell Analysis and Modeling, University of Connecticut Health Center, Farmington, Connecticut 06030, and
| | - Frank N van Leeuwen
- the Department of Cell Biology, Radboud University Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Metello Innocenti
- Division of Molecular Genetics, Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
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van der Sligte NE, Scherpen FJG, Ter Elst A, Guryev V, van Leeuwen FN, de Bont ESJM. Effect of IKZF1 deletions on signal transduction pathways in Philadelphia chromosome negative pediatric B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Exp Hematol Oncol 2015; 4:23. [PMID: 26269779 PMCID: PMC4534008 DOI: 10.1186/s40164-015-0017-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 07/24/2015] [Accepted: 07/27/2015] [Indexed: 11/13/2022] Open
Abstract
Background IKZF1 deletions are an unfavorable prognostic factor in children with Philadelphia chromosome positive (Ph+) as well as negative (Ph−) acute lymphoblastic leukemia (ALL). Although IKZF1 deletions occur in 10–15% of Ph− ALL cases, effects of IKZF1 deletions on signaling pathways in this group have not been extensively studied. Therefore, in this study we aimed to study the effect of IKZF1 deletions on active signal transduction pathways. Methods Multiplex ligation-dependent probe amplification (MLPA) was used to determine IKZF1 deletions and other copy number alterations in 109 pediatric B-Cell Precursor ALL (BCP-ALL) patients. Kinase activity profiling of 45 primary Ph− BCP-ALL patients (31 IKZF1 wild type patients and 14 patients harboring an IKZF1 alteration) and western blot analysis of 14 pediatric BCP-ALL samples was performed to determine active signal transduction pathways. Results Unsupervised hierarchical cluster analysis of kinome profiles of 45 pediatric Ph− ALL cases showed no clustering based on IKZF1 status. Comparing the phosphorylation intensities of peptides associated with signaling pathways known to be involved in BCP-ALL maintenance, we did not observe differences between the two groups. Western blot analysis of 14 pediatric BCP-ALL samples showed large variations in phosphorylation levels between the different ALL samples, independent of IKZF1 status. Conclusions Based on these results we conclude that, although IKZF1 deletions appear to be an important clinical prognostic factor, we were unable to identify a unique IKZF1 dependent protein expression signature in pediatric Ph− ALL and consequently no specific targets for future therapy of Ph−IKZF1 deleted BCP-ALL could be identified. Electronic supplementary material The online version of this article (doi:10.1186/s40164-015-0017-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Naomi E van der Sligte
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Frank J G Scherpen
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Arja Ter Elst
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Victor Guryev
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Department of Pediatrics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Eveline S J M de Bont
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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24
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Vos HI, Coenen MJ, Gelderblom H, van der Straaten T, de Bont ES, van der Graaf WTA, Schreuder H, van Leeuwen FN, Guchelaar HJ, Te Loo DMW. Pharmacogenetic markers for efficacy and toxicity of chemotherapy in osteosarcoma patients. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.10054] [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: 11/20/2022] Open
Affiliation(s)
- Hanneke I. Vos
- Radboud University Medical Center, Nijmegen, Netherlands
| | - Marieke J.H. Coenen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, Netherlands
| | - Tahar van der Straaten
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Eveline S.J.M de Bont
- Department of Pediatric Hematology and Oncology, University Medical Center Groningen, Groningen, Netherlands
| | | | - H.W.B. Schreuder
- Department of Orthopedic Surgery, Radboud university medical center, Nijmegen, Netherlands
| | - Frank N. van Leeuwen
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, Nijmegen, Netherlands
| | - Henk-jan Guchelaar
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, Netherlands
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25
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Hagleitner MM, Coenen MJH, Gelderblom H, Makkinje RR, Vos HI, de Bont ESJM, van der Graaf WTA, Schreuder HWB, Flucke U, van Leeuwen FN, Hoogerbrugge PM, Guchelaar HJ, te Loo DMWM. A First Step toward Personalized Medicine in Osteosarcoma: Pharmacogenetics as Predictive Marker of Outcome after Chemotherapy-Based Treatment. Clin Cancer Res 2015; 21:3436-41. [PMID: 25829401 DOI: 10.1158/1078-0432.ccr-14-2638] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 03/17/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE Overall survival in patients with osteosarcoma is only 60%. Poor response to chemotherapy is the dominant risk factor for poor survival. Pharmacogenetic research can offer possibilities to optimize treatment and improve outcome. We applied a pathway-based approach to evaluate the cumulative effect of genes involved in the metabolism of cisplatin and doxorubicin in relationship to clinical outcome. EXPERIMENTAL DESIGN We included 126 patients with osteosarcoma. To comprehensively assess common genetic variation in the 54 genes selected, linkage disequilibrium (LD; r(2) = 0.8)-based tag-single nucleotide polymorphisms (SNP) strategy was used. A final set of 384 SNPs was typed using Illumina Beadarray platform. SNPs significantly associated with 5-year progression-free survival (PFS) were replicated in another 64 patients with osteosarcoma. RESULTS We identified five variants in FasL, MSH2, ABCC5, CASP3, and CYP3A4 that were associated with 5-year PFS. Risk stratification based on the combined effects of the risk alleles showed a significant improvement of 5-year PFS. Patients that carried no or only one risk allele had a 5-year PFS of 100% compared with a 5-year PFS of 84.4% for carriers of two or three risk alleles, 66.7% PFS if a patient carried four to five alleles, and a 5-year PFS of 41.8% for patients with >5 risk alleles (P < 0.001). CONCLUSIONS We identified several genes that showed association with PFS in patients with osteosarcoma. These pharmacogenetic risk factors might be useful to predict treatment outcome and to stratify patients immediately after diagnosis and offer the possibility to improve treatment and outcome.
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Affiliation(s)
- Melanie M Hagleitner
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Marieke J H Coenen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hans Gelderblom
- Department of Clinical Oncology, Leiden University Medical Center, the Netherlands
| | - Remco R Makkinje
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hanneke I Vos
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Eveline S J M de Bont
- Department of Pediatric Hematology and Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - H W Bart Schreuder
- Department of Orthopedic Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Uta Flucke
- Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Frank N van Leeuwen
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Peter M Hoogerbrugge
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, the Netherlands
| | - Dunja M W M te Loo
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
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26
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van der Sligte NE, Scherpen FJG, Meeuwsen-de Boer TGJ, Lourens HJ, Ter Elst A, Diks SH, Guryev V, Peppelenbosch MP, van Leeuwen FN, de Bont ESJM. Kinase activity profiling reveals active signal transduction pathways in pediatric acute lymphoblastic leukemia: a new approach for target discovery. Proteomics 2015; 15:1245-54. [PMID: 25422122 DOI: 10.1002/pmic.201400286] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/14/2014] [Accepted: 11/20/2014] [Indexed: 12/23/2022]
Abstract
Still about 20% of patients with acute lymphoblastic leukemia (ALL) struggle with relapse, despite intensive chemotherapy. We and others have shown that kinase activity profiling is able to give more insights in active signal transduction pathways and point out interesting signaling hubs as well as new potential druggable targets. With this technique the gap between newly designed drugs and ALL may be bridged. The aim of this study was to perform kinome profiling on 20 pediatric ALL samples (14 BCP-ALL and six T-ALL) to identify signaling proteins relevant to ALL. We defined 250 peptides commonly activated in both BCP-ALL and T-ALL representing major signal transduction pathways including MAPK, PI3K/Akt, and regulators of the cell cycle/p53 pathway. For 27 peptides, differentially phosphorylation between BCP-ALL and T-ALL was observed. Among these, ten peptides were more highly phosphorylated in BCP-ALL while 17 peptides showed increased phosphorylation in T-ALL. Furthermore we selected one lead of the list of commonly activated peptides (HGFR_Y1235) in order to test its efficacy as a potential target and provide proof of principle for this approach. In conclusion kinome profiling is an elegant approach to study active signaling and identify interesting potential druggable targets.
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Affiliation(s)
- Naomi E van der Sligte
- Division of Pediatric Oncology/Hematology, Department of Pediatrics, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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27
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Hagleitner MM, Coenen MJH, Patino-Garcia A, de Bont ESJM, Gonzalez-Neira A, Vos HI, van Leeuwen FN, Gelderblom H, Hoogerbrugge PM, Guchelaar HJ, te Loo MWM. Influence of genetic variants in TPMT and COMT associated with cisplatin induced hearing loss in patients with cancer: two new cohorts and a meta-analysis reveal significant heterogeneity between cohorts. PLoS One 2014; 9:e115869. [PMID: 25551397 PMCID: PMC4281251 DOI: 10.1371/journal.pone.0115869] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 12/02/2014] [Indexed: 11/19/2022] Open
Abstract
Treatment with cisplatin-containing chemotherapy regimens causes hearing loss in 40–60% of cancer patients. It has been suggested that genetic variants in the genes encoding thiopurine S-methyltransferase (TPMT) and catechol O-methyltransferase (COMT) can predict the development of cisplatin-induced ototoxicity and may explain interindividual variability in sensitivity to cisplatin-induced hearing loss. Two recently published studies however, sought to validate these findings and showed inconsistent results. The aim of this study was to evaluate the role of polymorphisms in the TPMT and COMT genes in cisplatin-induced ototoxicity. Therefore we investigated two independent cohorts of 110 Dutch and 38 Spanish patients with osteosarcoma and performed a meta-analysis including all previously published studies resulting in a total population of 664 patients with cancer. With this largest meta-analysis performed to date, we show that the influence of TPMT and COMT on the development of cisplatin-induced hearing loss may be less important than previously suggested.
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Affiliation(s)
- Melanie M. Hagleitner
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
- * E-mail:
| | - Marieke J. H. Coenen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ana Patino-Garcia
- Department of Pediatrics, University of Navarra and University Clinic, Pamplona, Spain
| | - Eveline S. J. M. de Bont
- Department of Pediatric Hematology and Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anna Gonzalez-Neira
- Human Genotyping Unit-CeGen, Spanish National Cancer Research Center, Madrid, Spain
| | - Hanneke I. Vos
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N. van Leeuwen
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hans Gelderblom
- Department of Clinical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Peter M. Hoogerbrugge
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Henk-Jan Guchelaar
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, The Netherlands
| | - Maroeska W. M. te Loo
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
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28
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Visser D, Middelbeek J, van Leeuwen FN, Jalink K. Function and regulation of the channel-kinase TRPM7 in health and disease. Eur J Cell Biol 2014; 93:455-65. [DOI: 10.1016/j.ejcb.2014.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/24/2014] [Accepted: 07/01/2014] [Indexed: 11/30/2022] Open
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29
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Vos HI, Coenen MJ, Gelderblom H, van der Straaten T, de Bont ES, Van Der Graaf WT, Schreuder H, van Leeuwen FN, Guchelaar HJ, Te Loo DMW. Association of genetic variants involved in drug metabolism and transport with efficacy and toxicity of chemotherapeutic treatment in osteosarcoma patients. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.10038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hanneke I. Vos
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, Netherlands
| | - Marieke J.H. Coenen
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hans Gelderblom
- Department of Clinical Oncology, Leiden University Medical Center, Leiden, Netherlands
| | - Tahar van der Straaten
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Eveline S.J.M de Bont
- Department of Pediatric Hematology and Oncology, University Medical Center Groningen, Groningen, Netherlands
| | | | - H.W.B. Schreuder
- Department of Orthopedic Surgery, Radboud university medical center, Nijmegen, Netherlands
| | - Frank N. van Leeuwen
- Laboratory of Pediatric Oncology, Radboud university medical center, Nijmegen, Nijmegen, Netherlands
| | - Henk-jan Guchelaar
- Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center, Leiden, Netherlands
| | - Dunja Maroeska W.M. Te Loo
- Department of Pediatric Hematology and Oncology, Radboud University Medical Center, Nijmegen, Netherlands
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30
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van der Sligte NE, Krumbholz M, Pastorczak A, Scheijen B, Tauer JT, Nowasz C, Sonneveld E, de Bock GH, Meeuwsen-de Boer TGJ, van Reijmersdal S, Kuiper RP, Bradtke J, Metzler M, Suttorp M, de Bont ESJM, van Leeuwen FN. DNA copy number alterations mark disease progression in paediatric chronic myeloid leukaemia. Br J Haematol 2014; 166:250-3. [PMID: 24673583 DOI: 10.1111/bjh.12850] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 02/17/2014] [Indexed: 12/16/2022]
Abstract
Early recognition of children with chronic phase chronic myeloid leukaemia (CML-CP) at risk for developing a lymphoid blast crisis (LyBC) is desirable, because therapy options in CML-LyBC are limited. We used Multiplex Ligation-dependent Probe Amplification to determine whether B-cell lymphoid leukaemia-specific copy number alterations (CNAs) (e.g. IKZF1, PAX5, CDKN2A deletions) could be detected in CML-CP and may be used to predict disease progression to LyBC. CNAs were detected in all patients with CML-LyBC, but in none of the 77 patients with CML-CP. Based on this study we conclude that CNAs remain a hallmark of disease progression.
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Affiliation(s)
- Naomi E van der Sligte
- Division of Paediatric Oncology/Haematology, Department of Paediatrics, Beatrix Children's Hospital, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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31
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Visser D, Langeslag M, Kedziora KM, Klarenbeek J, Kamermans A, Horgen FD, Fleig A, van Leeuwen FN, Jalink K. TRPM7 triggers Ca2+ sparks and invadosome formation in neuroblastoma cells. Cell Calcium 2013; 54:404-15. [PMID: 24176224 DOI: 10.1016/j.ceca.2013.09.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 09/27/2013] [Accepted: 09/28/2013] [Indexed: 11/28/2022]
Abstract
Cell migration depends on the dynamic formation and turnover of cell adhesions and is tightly controlled by actomyosin contractility and local Ca2+ signals. The divalent cation channel TRPM7 (Transient Receptor Potential cation channel, subfamily Melastatin, member 7) has recently received much attention as a regulator of cell adhesion, migration and (localized) Ca2+ signaling. Overexpression and knockdown of TRPM7 affects actomyosin contractility and the formation of cell adhesions such as invadosomes and focal adhesions, but the role of TRPM7-mediated Ca2+ signals herein is currently not understood. Using Total Internal Reflection Fluorescence (TIRF) Ca2+ fluorometry and a novel automated analysis routine we have addressed the role of Ca2+ in the control of invadosome dynamics in N1E-115 mouse neuroblastoma cells. We find that TRPM7 promotes the formation of highly repetitive and localized Ca2+ microdomains or "Ca2+ sparking hotspots" at the ventral plasma membrane. Ca2+ sparking appears strictly dependent on extracellular Ca2+ and is abolished by TRPM7 channel inhibitors such as waixenicin-A. TRPM7 inhibition also induces invadosome dissolution. However, invadosome formation is (functionally and spatially) dissociated from TRPM7-mediated Ca2+ sparks. Rather, our data indicate that TRPM7 affects actomyosin contractility and invadosome formation independent of Ca2+ influx.
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Affiliation(s)
- Daan Visser
- Division of Cell Biology I, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
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32
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Middelbeek J, Kuipers AJ, Henneman L, Visser D, Eidhof I, van Horssen R, Wieringa B, Canisius SV, Zwart W, Wessels LF, Sweep FCGJ, Bult P, Span PN, van Leeuwen FN, Jalink K. TRPM7 is required for breast tumor cell metastasis. Cancer Res 2012; 72:4250-61. [PMID: 22871386 DOI: 10.1158/0008-5472.can-11-3863] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
TRPM7 encodes a Ca2+-permeable nonselective cation channel with kinase activity. TRPM7 has been implicated in control of cell adhesion and migration, but whether TRPM7 activity contributes to cancer progression has not been established. Here we report that high levels of TRPM7 expression independently predict poor outcome in breast cancer patients and that it is functionally required for metastasis formation in a mouse xenograft model of human breast cancer. Mechanistic investigation revealed that TRPM7 regulated myosin II-based cellular tension, thereby modifying focal adhesion number, cell-cell adhesion and polarized cell movement. Our findings therefore suggest that TRPM7 is part of a mechanosensory complex adopted by cancer cells to drive metastasis formation.
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Affiliation(s)
- Jeroen Middelbeek
- Laboratory of Pediatric Oncology, Department of Cell Biology, Nijmegen Centre for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
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Kuipers AJ, Middelbeek J, van Leeuwen FN. Mechanoregulation of cytoskeletal dynamics by TRP channels. Eur J Cell Biol 2012; 91:834-46. [PMID: 22727433 DOI: 10.1016/j.ejcb.2012.05.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 05/16/2012] [Accepted: 05/16/2012] [Indexed: 01/29/2023] Open
Abstract
The ability of cells to respond to mechanical stimulation is crucial to a variety of biological processes, including cell migration, axonal outgrowth, perception of pain, cardiovascular responses and kidney physiology. The translation of mechanical cues into cellular responses, a process known as mechanotransduction, typically takes place in specialized multiprotein structures such as cilia, cell-cell or cell-matrix adhesions. Within these structures, mechanical forces such as shear stress and membrane stretch activate mechanosensitive proteins, which set off a series of events that lead to altered cell behavior. Members of the transient receptor potential (TRP) family of cation channels are emerging as important players in mechanotransductory pathways. Localized within mechanosensory structures, they are activated by mechanical stimuli and trigger fast as well as sustained cytoskeletal responses. In this review, we will provide an overview of how TRP channels affect cytoskeletal dynamics in various mechano-regulated processes.
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Affiliation(s)
- Arthur J Kuipers
- Laboratory of Pediatric Oncology, Nijmegen Centre for Molecular Life Sciences, Radboud University Medical Centre, The Netherlands
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Waanders E, Scheijen B, van der Meer LT, van Reijmersdal SV, van Emst L, Kroeze Y, Sonneveld E, Hoogerbrugge PM, van Kessel AG, van Leeuwen FN, Kuiper RP. The origin and nature of tightly clustered BTG1 deletions in precursor B-cell acute lymphoblastic leukemia support a model of multiclonal evolution. PLoS Genet 2012; 8:e1002533. [PMID: 22359517 PMCID: PMC3280973 DOI: 10.1371/journal.pgen.1002533] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [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: 09/26/2011] [Accepted: 12/23/2011] [Indexed: 11/18/2022] Open
Abstract
Recurrent submicroscopic deletions in genes affecting key cellular pathways are a hallmark of pediatric acute lymphoblastic leukemia (ALL). To gain more insight into the mechanism underlying these deletions, we have studied the occurrence and nature of abnormalities in one of these genes, the B-cell translocation gene 1 (BTG1), in a large cohort of pediatric ALL cases. BTG1 was found to be exclusively affected by genomic deletions, which were detected in 65 out of 722 B-cell precursor ALL (BCP-ALL) patient samples (9%), but not in 109 T-ALL cases. Eight different deletion sizes were identified, which all clustered at the telomeric site in a hotspot region within the second (and last) exon of the BTG1 gene, resulting in the expression of truncated BTG1 read-through transcripts. The presence of V(D)J recombination signal sequences at both sites of virtually all deletions strongly suggests illegitimate RAG1/RAG2-mediated recombination as the responsible mechanism. Moreover, high levels of histone H3 lysine 4 trimethylation (H3K4me3), which is known to tether the RAG enzyme complex to DNA, were found within the BTG1 gene body in BCP-ALL cells, but not T-ALL cells. BTG1 deletions were rarely found in hyperdiploid BCP-ALLs, but were predominant in other cytogenetic subgroups, including the ETV6-RUNX1 and BCR-ABL1 positive BCP-ALL subgroups. Through sensitive PCR-based screening, we identified multiple additional BTG1 deletions at the subclonal level in BCP-ALL, with equal cytogenetic distribution which, in some cases, grew out into the major clone at relapse. Taken together, our results indicate that BTG1 deletions may act as “drivers” of leukemogenesis in specific BCP-ALL subgroups, in which they can arise independently in multiple subclones at sites that are prone to aberrant RAG1/RAG2-mediated recombination events. These findings provide further evidence for a complex and multiclonal evolution of ALL. Recent studies have alluded to the existence of a complex clonal cellular architecture in acute lymphoblastic leukemia (ALL), where multiple subclones contribute to leukemogenesis. Here, we show that in pediatric B-cell precursor ALL (BCP-ALL) monoallelic deletions in the tumor suppressor BTG1 locus, which were found to occur in 9% of the patients studied, result in truncations of the gene rather than in complete allelic losses. Using both genetic and epigenetic approaches, we show that these deletions most likely originate from illegitimate RAG recombination. Sensitive backtracking using deletion-spanning PCRs revealed that these BTG1 deletions occur in specific BCP-ALL subtypes, with frequencies higher than previously anticipated, often in one minor subclone or in multiple independent subclones within individual patients. Subclones that carry a BTG1 deletion at diagnosis can evolve into the major clone at relapse. These findings link a mechanism of tumor suppressor gene deletion to the multiclonal evolution of ALL.
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Affiliation(s)
- Esmé Waanders
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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van den Dries K, van Helden SFG, te Riet J, Diez-Ahedo R, Manzo C, Oud MM, van Leeuwen FN, Brock R, Garcia-Parajo MF, Cambi A, Figdor CG. Geometry sensing by dendritic cells dictates spatial organization and PGE(2)-induced dissolution of podosomes. Cell Mol Life Sci 2011; 69:1889-901. [PMID: 22204022 PMCID: PMC3350765 DOI: 10.1007/s00018-011-0908-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [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: 05/27/2011] [Revised: 11/28/2011] [Accepted: 12/13/2011] [Indexed: 01/01/2023]
Abstract
Assembly and disassembly of adhesion structures such as focal adhesions (FAs) and podosomes regulate cell adhesion and differentiation. On antigen-presenting dendritic cells (DCs), acquisition of a migratory and immunostimulatory phenotype depends on podosome dissolution by prostaglandin E2 (PGE2). Whereas the effects of physico-chemical and topographical cues have been extensively studied on FAs, little is known about how podosomes respond to these signals. Here, we show that, unlike for FAs, podosome formation is not controlled by substrate physico-chemical properties. We demonstrate that cell adhesion is the only prerequisite for podosome formation and that substrate availability dictates podosome density. Interestingly, we show that DCs sense 3-dimensional (3-D) geometry by aligning podosomes along the edges of 3-D micropatterned surfaces. Finally, whereas on a 2-dimensional (2-D) surface PGE2 causes a rapid increase in activated RhoA levels leading to fast podosome dissolution, 3-D geometric cues prevent PGE2-mediated RhoA activation resulting in impaired podosome dissolution even after prolonged stimulation. Our findings indicate that 2-D and 3-D geometric cues control the spatial organization of podosomes. More importantly, our studies demonstrate the importance of substrate dimensionality in regulating podosome dissolution and suggest that substrate dimensionality plays an important role in controlling DC activation, a key process in initiating immune responses.
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Affiliation(s)
- Koen van den Dries
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
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Montezano AC, Zimmerman D, Yusuf H, Burger D, Chignalia AZ, Wadhera V, van Leeuwen FN, Touyz RM. Vascular smooth muscle cell differentiation to an osteogenic phenotype involves TRPM7 modulation by magnesium. Hypertension 2010; 56:453-62. [PMID: 20696983 DOI: 10.1161/hypertensionaha.110.152058] [Citation(s) in RCA: 164] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Arterial calcification, common in vascular diseases, involves vascular smooth muscle cell (VSMC) transformation to an osteoblast phenotype. Clinical studies suggest that magnesium may prevent this, but mechanisms are unclear. We assessed whether increasing magnesium levels reduce VSMC calcification and differentiation and questioned the role of the Mg(2+) transporter, transient receptor potential melastatin (TRPM)7 cation channels in this process. Rat VSMCs were exposed to calcification medium in the absence and presence of magnesium (2.0 to 3.0 mmol/L) or 2-aminoethoxy-diphenylborate (2-APB) (TRPM7 inhibitor). VSMCs from mice with genetically low (MgL) or high-normal (MgH) [Mg(2+)](i) were also studied. Calcification was assessed by von Kossa staining. Expression of osteocalcin, osteopontin, bone morphogenetic protein (BMP)-2, BMP-4, BMP-7, and matrix Gla protein and activity of TRPM7 (cytosol:membrane translocation) were determined by immunoblotting. Calcification medium induced osteogenic differentiation, reduced matrix Gla protein content, and increased expression of the sodium-dependent cotransporter Pit-1. Magnesium prevented calcification and decreased osteocalcin expression and BMP-2 activity and increased expression of calcification inhibitors, osteopontin and matrix Gla protein. TRPM 7 activation was decreased by calcification medium, an effect reversed by magnesium. 2-APB recapitulated the VSMC osteoblastic phenotype in VSMCs. Osteocalcin was increased by calcification medium in VSMCs and intact vessels from MgL but not MgH, whereas osteopontin was increased in MgH, but not in MgL mice. Magnesium negatively regulates vascular calcification and osteogenic differentiation through increased/restored TRPM7 activity and increased expression of anticalcification proteins, including osteopontin, BMP-7, and matrix Gla protein. New molecular insights are provided whereby magnesium could protect against VSMC calcification.
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Middelbeek J, Clark K, Venselaar H, Huynen MA, van Leeuwen FN. The alpha-kinase family: an exceptional branch on the protein kinase tree. Cell Mol Life Sci 2010; 67:875-90. [PMID: 20012461 PMCID: PMC2827801 DOI: 10.1007/s00018-009-0215-z] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Revised: 10/27/2009] [Accepted: 11/10/2009] [Indexed: 01/19/2023]
Abstract
The alpha-kinase family represents a class of atypical protein kinases that display little sequence similarity to conventional protein kinases. Early studies on myosin heavy chain kinases in Dictyostelium discoideum revealed their unusual propensity to phosphorylate serine and threonine residues in the context of an alpha-helix. Although recent studies show that some members of this family can also phosphorylate residues in non-helical regions, the name alpha-kinase has remained. During evolution, the alpha-kinase domains combined with many different functional subdomains such as von Willebrand factor-like motifs (vWKa) and even cation channels (TRPM6 and TRPM7). As a result, these kinases are implicated in a large variety of cellular processes such as protein translation, Mg(2+) homeostasis, intracellular transport, cell migration, adhesion, and proliferation. Here, we review the current state of knowledge on different members of this kinase family and discuss the potential use of alpha-kinases as drug targets in diseases such as cancer.
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Affiliation(s)
- Jeroen Middelbeek
- Laboratory of Pediatric Oncology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Kristopher Clark
- MRC Protein Phosphorylation Unit, Sir James Black Centre, College of Life Sciences, University of Dundee, Dundee, DD1 5EH Scotland UK
| | - Hanka Venselaar
- Centre for Molecular and Biomolecular Informatics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Martijn A. Huynen
- Centre for Molecular and Biomolecular Informatics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Frank N. van Leeuwen
- Laboratory of Pediatric Oncology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
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van Helden SFG, van den Dries K, Oud MM, Raymakers RAP, Netea MG, van Leeuwen FN, Figdor CG. TLR4-mediated podosome loss discriminates gram-negative from gram-positive bacteria in their capacity to induce dendritic cell migration and maturation. J Immunol 2009; 184:1280-91. [PMID: 20038642 DOI: 10.4049/jimmunol.0900764] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Chronic infections are caused by microorganisms that display effective immune evasion mechanisms. Dendritic cell (DC)-dependent T cell-mediated adaptive immunity is one of the mechanisms that have evolved to prevent the occurrence of chronic bacterial infections. In turn, bacterial pathogens have developed strategies to evade immune recognition. In this study, we show that gram-negative and gram-positive bacteria differ in their ability to activate DCs and that gram-negative bacteria are far more effective inducers of DC maturation. Moreover, we observed that only gram-negative bacteria can induce loss of adhesive podosome structures in DCs, a response necessary for the induction of effective DC migration. We demonstrate that the ability of gram-negative bacteria to trigger podosome turnover and induce DC migration reflects their capacity to selectively activate TLR4. Examining mice defective in TLR4 signaling, we show that this DC maturation and migration are mainly Toll/IL-1 receptor domain-containing adaptor-inducing IFNbeta-dependent. Furthermore, we show that these processes depend on the production of PGs by these DCs, suggesting a direct link between TLR4-mediated signaling and arachidonic metabolism. These findings demonstrate that gram-positive and gram-negative bacteria profoundly differ in their capacity to activate DCs. We propose that this inability of gram-positive bacteria to induce DC maturation and migration is part of the armamentarium necessary for avoiding the induction of an effective cellular immune response and may explain the frequent involvement of these pathogens in chronic infections.
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Affiliation(s)
- Suzanne F G van Helden
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
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Ganser A, Roth G, van Galen JC, Hilderink J, Wammes JJG, Müller I, van Leeuwen FN, Wiesmüller KH, Brock R. Diffusion-driven device for a high-resolution dose-response profiling of combination chemotherapy. Anal Chem 2009; 81:5233-40. [PMID: 19476343 DOI: 10.1021/ac900415s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Combination therapies have proven vital in the fight against HIV and cancer. However, the identification and optimization of such combination therapies is largely experience driven and an activity of clinicians rather than of systematic screening efforts. Here we present a diffusion device, compatible with the format of a 12-well microtiter plate, to create and test all possible mixtures of two substances with only two pipetting steps. Applications to the testing of different drug combinations and the parallel screening of different leukemia cell lines as well as primary patient cells are presented. The diffusion device yields qualitatively and quantitatively comparable results to an MTT viability assay conducted in a standard 96-well format albeit with a tremendous reduction of processing steps. In addition, a fluorescence-based annexin V binding assay of cell death was implemented. Next to the reduction of processing steps, the diffusion device constitutes a considerable assay miniaturization that overcomes the problems typically associated with miniaturization as a consequence of small sample volumes. Given its ease of handling, the device will greatly advance the development and optimization of combination drugs and the identification of optimum drug combinations in personalized medicine.
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Affiliation(s)
- Alexander Ganser
- Department of Biochemistry, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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40
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Jacobs JFM, van Bokhoven H, van Leeuwen FN, Hulsbergen-van de Kaa CA, de Vries IJM, Adema GJ, Hoogerbrugge PM, de Brouwer APM. Regulation of MYCN expression in human neuroblastoma cells. BMC Cancer 2009; 9:239. [PMID: 19615087 PMCID: PMC2720985 DOI: 10.1186/1471-2407-9-239] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [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: 01/08/2009] [Accepted: 07/18/2009] [Indexed: 12/04/2022] Open
Abstract
Background Amplification of the MYCN gene in neuroblastoma (NB) is associated with a poor prognosis. However, MYCN-amplification does not automatically result in higher expression of MYCN in children with NB. We hypothesized that the discrepancy between MYCN gene expression and prognosis in these children might be explained by the expression of either MYCN-opposite strand (MYCNOS) or the shortened MYCN-isoform (ΔMYCN) that was recently identified in fetal tissues. Both MYCNOS and ΔMYCN are potential inhibitors of MYCN either at the mRNA or at the protein level. Methods Expression of MYCN, MYCNOS and ΔMYCN was measured in human NB tissues of different stages. Transcript levels were quantified using a real-time reverse transcriptase polymerase chain reaction assay (QPCR). In addition, relative expression of these three transcripts was compared to the number of MYCN copies, which was determined by genomic real-time PCR (gQPCR). Results Both ΔMYCN and MYCNOS are expressed in all NBs examined. In NBs with MYCN-amplification, these transcripts are significantly higher expressed. The ratio of MYCN:ΔMYCN expression was identical in all tested NBs. This indicates that ΔMYCN and MYCN are co-regulated, which suggests that ΔMYCN is not a regulator of MYCN in NB. However, the ratio of MYCNOS:MYCN expression is directly correlated with NB disease stage (p = 0.007). In the more advanced NB stages and NBs with MYCN-amplification, relatively more MYCNOS is present as compared to MYCN. Expression of the antisense gene MYCNOS might be relevant to the progression of NB, potentially by directly inhibiting MYCN transcription by transcriptional interference at the DNA level. Conclusion The MYCNOS:MYCN-ratio in NBs is significantly correlated with both MYCN-amplification and NB-stage. Our data indicate that in NB, MYCN expression levels might be influenced by MYCNOS but not by ΔMYCN.
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Affiliation(s)
- Joannes F M Jacobs
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Donders Institute for Brain, Cognition and Behaviour, P.O. Box 9101, 6500 HB Nijmegen, the Netherlands.
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41
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van Helden SF, van Leeuwen FN, Figdor CG. Human and murine model cell lines for dendritic cell biology evaluated. Immunol Lett 2008; 117:191-7. [DOI: 10.1016/j.imlet.2008.02.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2008] [Revised: 02/05/2008] [Accepted: 02/08/2008] [Indexed: 12/23/2022]
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Kuiper JWP, Pluk H, Oerlemans F, van Leeuwen FN, de Lange F, Fransen J, Wieringa B. Creatine kinase-mediated ATP supply fuels actin-based events in phagocytosis. PLoS Biol 2008; 6:e51. [PMID: 18336068 PMCID: PMC2265766 DOI: 10.1371/journal.pbio.0060051] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Accepted: 01/18/2008] [Indexed: 11/23/2022] Open
Abstract
Phagocytosis requires locally coordinated cytoskeletal rearrangements driven by actin polymerization and myosin motor activity. How this actomyosin dynamics is dependent upon systems that provide access to ATP at phagosome microdomains has not been determined. We analyzed the role of brain-type creatine kinase (CK-B), an enzyme involved in high-energy phosphoryl transfer. We demonstrate that endogenous CK-B in macrophages is mobilized from the cytosolic pool and coaccumulates with F-actin at nascent phagosomes. Live cell imaging with XFP-tagged CK-B and β-actin revealed the transient and specific nature of this partitioning process. Overexpression of a catalytic dead CK-B or CK-specific cyclocreatine inhibition caused a significant reduction of actin accumulation in the phagocytic cup area, and reduced complement receptor–mediated, but not Fc-γR–mediated, ingestion capacity of macrophages. Finally, we found that inhibition of CK-B affected phagocytosis already at the stage of particle adhesion, most likely via effects on actin polymerization behavior. We propose that CK-B activity in macrophages contributes to complement-induced F-actin assembly events in early phagocytosis by providing local ATP supply. To do work, cells need energy in the form of ATP. High and sudden energy demand is seen during cell-shape change, a process in which ATP fuels the cytoskeletal machinery that drives cell-morphology alteration. How a cell organizes high-energy surges without disrupting global ATP homeostasis remains an important research question. One view proposes that ATP is heterogeneously distributed, but the cytoskeletal proteins actin and myosin receive regional and preferential access to ATP. Yet this model raises another question: how is ATP funneled to these proteins from distant sources? To address some of these questions, we studied the highly localized molecular events controlling actin dynamics around phagocytic activity of macrophages. We demonstrate that actin and creatine kinase-B (CK-B), a long-known enzyme involved in ATP supply, are simultaneously recruited into the sites of action during the early phases of particle ingestion. Local availability of CK-activity and local generation of ATP promotes on-site actin remodeling and particle capture efficiency, and thus supports successful initiation of the first phases of phagocytosis. Interestingly, this coupling between local CK-activity and actin regulation is only relevant for complement-mediated phagocytosis (used by immune cells to target specific particles for ingestion). We predict that our findings may also shed light on how shape dynamics is energized in other cell types. A tight connection exists between local recruitment of creatine kinase-B (CK-B) and actin remodeling activity in phagocytic cups of macrophages. Complement-mediated phagocytosis is stimulated in the presence of enzymatic-active CK-B, indicating that local ATP supply stimulates actin-driven particle uptake events.
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Affiliation(s)
- Jan W. P Kuiper
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Helma Pluk
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Frank Oerlemans
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Frank de Lange
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Jack Fransen
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Bé Wieringa
- Department of Cell Biology, Radboud University, Nijmegen Medical Centre, Nijmegen, The Netherlands
- * To whom correspondence should be addressed. E-mail:
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Clark K, Middelbeek J, van Leeuwen FN. Interplay between TRP channels and the cytoskeleton in health and disease. Eur J Cell Biol 2008; 87:631-40. [PMID: 18342984 DOI: 10.1016/j.ejcb.2008.01.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Revised: 01/17/2008] [Accepted: 01/18/2008] [Indexed: 11/30/2022] Open
Abstract
Transient receptor potential (TRP) channels are a family of cation channels that play a key role in ion homeostasis and cell volume regulation. In addition, TRP channels are considered universal integrators of sensory information required for taste, vision, hearing, touch, temperature, and the detection of mechanical force. Seminal investigations exploring the molecular mechanisms of phototransduction in Drosophila have demonstrated that TRP channels operate within macromolecular complexes closely associated with the cytoskeleton. More recent evidence shows that mammalian TRP channels similarly connect to the cytoskeleton to affect cytoskeletal organization and cell adhesion via ion-transport-dependent and -independent mechanisms. In this review, we discuss new insights into the interplay between TRP channels and the cytoskeleton and provide recent examples of such interactions in different physiological systems.
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Affiliation(s)
- Kristopher Clark
- University of Dundee, MRC Protein Phosphorylation Unit, Dundee DD1 5EH, Scotland, UK
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van Helden SFG, Oud MM, Joosten B, Peterse N, Figdor CG, van Leeuwen FN. PGE2-mediated podosome loss in dendritic cells is dependent on actomyosin contraction downstream of the RhoA-Rho-kinase axis. J Cell Sci 2008; 121:1096-106. [PMID: 18334555 DOI: 10.1242/jcs.020289] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Podosomes are dynamic adhesion structures found in dendritic cells (DCs) and other cells of the myeloid lineage. We previously showed that prostaglandin E2 (PGE2), an important proinflammatory mediator produced during DC maturation, induces podosome disassembly within minutes after stimulation. Here, we demonstrate that this response is mediated by cAMP elevation, occurs downstream of Rho kinase and is dependent on myosin II. Whereas PGE2 stimulation leads to activation of the small GTPase RhoA, decreased levels of Rac1-GTP and Cdc42-GTP are observed. These results show that PGE2 stimulation leads to activation of the RhoA-Rho-kinase axis to promote actomyosin-based contraction and subsequent podosome dissolution. Because podosome disassembly is accompanied by de novo formation of focal adhesions, we propose that the disassembly/formation of these two different adhesion structures is oppositely regulated by actomyosin contractility and relative activities of RhoA, Rac1 and Cdc42.
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Affiliation(s)
- Suzanne F G van Helden
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
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45
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te Riet J, Zimmerman AW, Cambi A, Joosten B, Speller S, Torensma R, van Leeuwen FN, Figdor CG, de Lange F. Distinct kinetic and mechanical properties govern ALCAM-mediated interactions as shown by single-molecule force spectroscopy. J Cell Sci 2007; 120:3965-76. [DOI: 10.1242/jcs.004010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The activated leukocyte cell adhesion molecule (ALCAM) mediates dynamic homotypic and heterotypic cellular interactions. Whereas homotypic ALCAM-ALCAM interactions have been implicated in the development and maintenance of tissue architecture and tumor progression, heterotypic ALCAM-CD6 interactions act to initiate and stabilize T-cell–dendritic-cell interactions affecting T-cell activation. The ability to resist the forces acting on the individual bonds during these highly dynamic cellular contacts is thought to be crucial for the (patho)physiology of ALCAM-mediated cell adhesion. Here, we used atomic force microscopy to characterize the relationship between affinity, avidity and the stability of ALCAM-mediated interactions under external loading, at the single-molecule level. Disruption of the actin cytoskeleton resulted in enhanced ALCAM binding avidity, without affecting the tensile strength of the individual bonds. Force spectroscopy revealed that the ALCAM-CD6 bond displayed a significantly higher tensile strength, a smaller reactive compliance and an up to 100-fold lower dissociation rate in the physiological force window in comparison to the homotypic interaction. These results indicate that homotypic and heterotypic ALCAM-mediated adhesion are governed by significantly distinct kinetic and mechanical properties, providing novel insight into the role of ALCAM during highly dynamic cellular interactions.
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Affiliation(s)
- Joost te Riet
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
- Department of Scanning Probe Microscopy, Institute for Molecules and Materials (IMM), Radboud University Nijmegen, PO Box 9010, 6500GL Nijmegen, The Netherlands
| | - Aukje W. Zimmerman
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Alessandra Cambi
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Ben Joosten
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Sylvia Speller
- Department of Scanning Probe Microscopy, Institute for Molecules and Materials (IMM), Radboud University Nijmegen, PO Box 9010, 6500GL Nijmegen, The Netherlands
| | - Ruurd Torensma
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Frank N. van Leeuwen
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Carl G. Figdor
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
| | - Frank de Lange
- Department of Tumour Immunology (278), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
- Department of Cell Biology (283), Nijmegen Centre for Molecular Life Sciences (NCMLS), Radboud University Nijmegen Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands
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Clark K, Langeslag M, Figdor CG, van Leeuwen FN. Myosin II and mechanotransduction: a balancing act. Trends Cell Biol 2007; 17:178-86. [PMID: 17320396 DOI: 10.1016/j.tcb.2007.02.002] [Citation(s) in RCA: 169] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Accepted: 02/08/2007] [Indexed: 10/25/2022]
Abstract
Adherent cells respond to mechanical properties of the surrounding extracellular matrix. Mechanical forces, sensed at specialized cell-matrix adhesion sites, promote actomyosin-based contraction within the cell. By manipulating matrix rigidity and adhesion strength, new roles for actomyosin contractility in the regulation of basic cellular functions, including cell proliferation, migration and stem cell differentiation, have recently been discovered. These investigations demonstrate that a balance of forces between cell adhesion on the outside and myosin II-based contractility on the inside of the cell controls many aspects of cell behavior. Disturbing this balance contributes to the pathogenesis of various human diseases. Therefore, elaborate signaling networks have evolved that modulate myosin II activity to maintain tensional homeostasis. These include signaling pathways that regulate myosin light chain phosphorylation as well as myosin II heavy chain interactions.
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Affiliation(s)
- Kristopher Clark
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
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Abstract
TRPM7 is a ubiquitously expressed nonspecific cation channel that has been implicated in cellular Mg(2+) homeostasis. We have recently shown that moderate overexpression of TRPM7 in neuroblastoma N1E-115 cells elevates cytosolic Ca(2+) levels and enhances cell-matrix adhesion. Furthermore, activation of TRPM7 by phospholipase C (PLC)-coupled receptor agonists caused a further increase in intracellular Ca(2+) levels and augmented cell adhesion and spreading in a Ca(2+)-dependent manner (1). Regulation of the TRPM7 channel is not well understood, although it has been reported that PIP(2) hydrolysis closes the channel. Here we have examined the regulation of TRPM7 by PLC-coupled receptor agonists such as bradykinin, lysophosphatidic acid, and thrombin. Using FRET assays for second messengers, we have shown that the TRPM7-dependent Ca(2+) increase closely correlates with activation of PLC. Under non-invasive "perforated patch clamp" conditions, we have found similar activation of TRPM7 by PLC-coupled receptor agonists. Although we could confirm that, under whole-cell conditions, the TRPM7 currents were significantly inhibited following PLC activation, this PLC-dependent inhibition was only observed when [Mg(2+)](i) was reduced below physiological levels. Thus, under physiological ionic conditions, TRPM7 currents were activated rather than inhibited by PLC-activating receptor agonists.
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Affiliation(s)
- Michiel Langeslag
- Division of Cell Biology, the Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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48
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van Helden SFG, Krooshoop DJEB, Broers KCM, Raymakers RAP, Figdor CG, van Leeuwen FN. A critical role for prostaglandin E2 in podosome dissolution and induction of high-speed migration during dendritic cell maturation. J Immunol 2006; 177:1567-74. [PMID: 16849464 DOI: 10.4049/jimmunol.177.3.1567] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dendritic cells (DCs) are professional APCs of the immune system that play a key role in regulating T cell-based immunity. The capacity of DCs to activate T cells depends on their maturation state as well as their ability to migrate to the T cell areas of draining lymph nodes. In this study, we investigated the effects of DC maturation stimuli on the actin cytoskeleton and beta(1) integrin-dependent adhesion and migration. Podosomes, specialized adhesion structures found in immature monocyte-derived DCs as well as myeloid DCs, rapidly dissolve in response to maturation stimuli such as TNF-alpha and PGE(2), whereas the TLR agonist LPS induces podosome dissolution only after a long lag time. We demonstrate that LPS-mediated podosome disassembly as well as the onset of high-speed DC migration are dependent on the production of PGs by the DCs. Moreover, both of these processes are inhibited by Ab-induced activation of beta(1) integrins. Together, these results show that maturation-induced podosome dissolution and loss of alpha(5)beta(1) integrin activity allow human DCs to undergo the transition from an adhesive to a highly migratory phenotype.
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Affiliation(s)
- Suzanne F G van Helden
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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49
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Cambi A, Joosten B, Koopman M, de Lange F, Beeren I, Torensma R, Fransen JA, Garcia-Parajó M, van Leeuwen FN, Figdor CG. Organization of the integrin LFA-1 in nanoclusters regulates its activity. Mol Biol Cell 2006; 17:4270-81. [PMID: 16855029 PMCID: PMC1635357 DOI: 10.1091/mbc.e05-12-1098] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The beta2-integrin LFA-1 facilitates extravasation of monocytes (MOs) into the underlying tissues, where MOs can differentiate into dendritic cells (DCs). Although DCs express LFA-1, unlike MOs, they cannot bind to ICAM-1. We hypothesized that an altered integrin organization on the DC plasma membrane might cause this effect and investigated the relationship between membrane organization and function of LFA-1 on MOs and DCs. High-resolution mapping of LFA-1 surface distribution revealed that on MOs LFA-1 function is associated with a distribution in well-defined nanoclusters (100-150-nm diameter). Interestingly, a fraction of these nanoclusters contains primed LFA-1 molecules expressing the specific activation-dependent L16-epitope. Live imaging of MO-T-cell conjugates showed that only these primed nanoclusters are dynamically recruited to the cellular interface forming micrometer-sized assemblies engaged in ligand binding and linked to talin. We conclude that besides affinity regulation, LFA-1 function is controlled by at least three different avidity patterns: random distributed inactive molecules, well-defined ligand-independent proactive nanoclusters, and ligand-triggered micrometer-sized macroclusters.
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Affiliation(s)
| | | | - Marjolein Koopman
- Applied Optics Group and Department of Applied Physics and MESA+ Research Institute, University of Twente, 7522 NM Enschede, The Netherlands
| | - Frank de Lange
- *Department of Tumor Immunology and
- Department of Cell Biology and Microscopic Imaging Centre, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6500 HB Nijmegen, The Netherlands; and
| | | | | | - Jack A. Fransen
- Department of Cell Biology and Microscopic Imaging Centre, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6500 HB Nijmegen, The Netherlands; and
| | - Maria Garcia-Parajó
- Applied Optics Group and Department of Applied Physics and MESA+ Research Institute, University of Twente, 7522 NM Enschede, The Netherlands
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Zimmerman AW, Joosten B, Torensma R, Parnes JR, van Leeuwen FN, Figdor CG. Long-term engagement of CD6 and ALCAM is essential for T-cell proliferation induced by dendritic cells. Blood 2006; 107:3212-20. [PMID: 16352806 DOI: 10.1182/blood-2005-09-3881] [Citation(s) in RCA: 141] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Interactions between T cells and antigen-presenting cells (APCs) are the first step in the induction of an adaptive immune response. Here, we show that CD6 and its ligand activated leukocyte cell adhesion molecule (ALCAM) are actively recruited to the antigen-induced dendritic cell (DC)–T-cell contact zone. Moreover, ALCAM-blocking antibodies interfere with DC–T-cell conjugate formation, demonstrating that CD6-ALCAM binding is essential for stable T-cell–APC contact. We now demonstrate that besides their role in establishing initial contacts, CD6-ALCAM interactions are also required during the proliferative phase of the T-cell response; the presence of CD6-blocking antibodies or recombinant ALCAM-Fc proteins results in a strong and sustained inhibition of T-cell proliferation. Furthermore, simultaneous crosslinking of CD6 and CD3 induces enhanced proliferation and transcriptional activity to a similar level as observed after CD3 and CD28 co-crosslinking, demonstrating that CD6 is an important costimulatory molecule. The stability of ALCAM-CD6 binding, which contrasts with transient homotypic ALCAM-ALCAM interactions, further supports the long-lasting effects observed on T-cell proliferation. Taken together, we demonstrate that CD6 and ALCAM form a key adhesive receptor-ligand pair that is not only involved in early DC-T-cell binding but also in sustaining DC-induced T-cell proliferation long after the initial contact has been established.
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MESH Headings
- Antibodies, Monoclonal/genetics
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/pharmacology
- Antigen Presentation/drug effects
- Antigen Presentation/immunology
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, CD/pharmacology
- Antigens, Differentiation, T-Lymphocyte/immunology
- CD28 Antigens/immunology
- CD3 Complex/immunology
- Cell Adhesion Molecules, Neuronal/genetics
- Cell Adhesion Molecules, Neuronal/immunology
- Cell Adhesion Molecules, Neuronal/pharmacology
- Cell Communication/drug effects
- Cell Communication/immunology
- Cell Differentiation/drug effects
- Cell Differentiation/immunology
- Cells, Cultured
- Dendritic Cells/cytology
- Dendritic Cells/immunology
- Fetal Proteins/genetics
- Fetal Proteins/immunology
- Fetal Proteins/pharmacology
- Humans
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/immunology
- Recombinant Fusion Proteins/pharmacology
- T-Lymphocytes/cytology
- T-Lymphocytes/immunology
- Time Factors
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Affiliation(s)
- Aukje W Zimmerman
- Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, The Netherlands
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