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De Bruyne E, Eloot S, Willem L, Van Hoeck K, Walle JV, Raes A, Van Biesen W, Goubert L, Van Hoecke E, Snauwaert E. Mental health and professional outcomes in parents of children with chronic kidney disease. Pediatr Nephrol 2024:10.1007/s00467-024-06372-y. [PMID: 38653885 DOI: 10.1007/s00467-024-06372-y] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/08/2024] [Accepted: 04/03/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND This study evaluated parenting stress, anxiety, and depression symptoms and their associated factors in parents of children with chronic kidney disease (CKD). METHODS This cross-sectional study compared parents of patients with CKD (0-18 years) with a matched control group of parents of healthy children. Both groups completed the Parenting Stress Index - Short Form, the Hospital Anxiety and Depression Scale, and a sociodemographic questionnaire. RESULTS The study group consisted of 45 parents (median age 39; 32 mothers) of CKD patients (median age 8; 36% female). Nearly 75% of children had CKD stages 2, 3, or 4, and 44.5% had congenital anomaly of the kidney and urinary tract. Five children (11%) were on dialysis, and 4 (9%) had a functioning kidney graft. Compared with parents of healthy children, more stress and anxiety symptoms were reported. Since the CKD diagnosis, 47% of parents perceived a deterioration of their own health, and 40% reduced work on a structural basis. Higher levels of stress, anxiety, and depression symptoms were associated with a more negative perception of own health, and more child medical comorbidities and school absence. CONCLUSIONS This study showed higher levels of parenting stress and anxiety symptoms in parents of children with CKD compared with parents of healthy children. This was associated with a less positive perception of their own health, especially if the child had more medical comorbidities or more absence from school. Psychosocial interventions to reduce the parental burden should be integrated in the standard care of pediatric nephrology departments.
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Affiliation(s)
- Elke De Bruyne
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium.
| | - Sunny Eloot
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Lore Willem
- Department of Child Nephrology and Organ Transplantation, Leuven University Hospital, Louvain, Belgium
| | - Koen Van Hoeck
- Department of Pediatric Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Johan Vande Walle
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Ann Raes
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Wim Van Biesen
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Liesbet Goubert
- Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium
| | - Eline Van Hoecke
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium
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Karamaria S, Mauel R, Van den Ende M, Oosterlinck A, Verheye A, De Bruyne E, Degrauewe E, Dhondt K, Dossche L, Raes A, Renson C, Samijn B, Spinoit AF, Everaert K, Walle JV. Transition in enuresis patients: Identifying the gaps and opportunities for the future. Neurourol Urodyn 2024. [PMID: 38587243 DOI: 10.1002/nau.25460] [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] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/21/2024] [Accepted: 03/25/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Nocturnal enuresis is generally considered a children's condition, yet it may persist 1%-2% in adolescence and early adulthood. Refractory patients often demand follow-up by multidisciplinary teams, which is only restricted to some of the expert tertiary centers. However, there are no standardized transition programs/guidelines when follow-up must be passed from pediatric to adult healthcare providers. AIM, MATERIALS & METHODS To investigate this issue, we conducted a literature search on enuresis transition, which resulted in no articles. We, therefore, proceeded in a rescue search strategy: we explored papers on transition programs of conditions that may be related and/or complicated by enuresis, nocturia, or other urinary symptoms (chronic diseases, CKD, bladder dysfunction, kidney transplant, neurogenic bladder). RESULTS These programs emphasize the need for a multidisciplinary approach, a transition coordinator, and the importance of patient and parent participation, practices that could be adopted in enuresis. The lack of continuity in enuresis follow-up was highlighted when we investigated who was conducting research and publishing on enuresis and nocturia. Pediatric disciplines (50%) are mostly involved in children's studies, and urologists in the adult ones (37%). DISCUSSION We propose a stepwise approach for the transition of children with enuresis from pediatric to adult care, depending on the clinical subtype: from refractory patients who demand more complex, multidisciplinary care and would benefit from a transition coordinator up to children/young adults cured of enuresis but who persist in having or present lower urinary tract symptoms (LUTS)/nocturia later on. In any case, the transition process should be initiated early at the age of 12-14 years, with adequate information to the patient and parents regarding relapses or LUTS/nocturia occurrence and of the future treating general practitioner on the enuresis characteristics and comorbidities of the patient.
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Affiliation(s)
- Sevasti Karamaria
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Reiner Mauel
- Department of Pediatric Intensive Care, Brussels University Hospital, Brussels, Belgium
| | - Mauro Van den Ende
- Department of Urology, eUROGEN Accredited Center, Ghent University Hospital, Ghent, Belgium
| | - Ase Oosterlinck
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Alice Verheye
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Elke De Bruyne
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Eva Degrauewe
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Karlien Dhondt
- Department of Child & Adolescent Psychiatry, Pediatric Sleep Center, Ghent University Hospital, Ghent, Belgium
| | - Lien Dossche
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Ann Raes
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Catherine Renson
- Department of Urology, eUROGEN Accredited Center, Ghent University Hospital, Ghent, Belgium
| | - Bieke Samijn
- Department of Urology, eUROGEN Accredited Center, Ghent University Hospital, Ghent, Belgium
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Anne-Francoise Spinoit
- Department of Urology, eUROGEN Accredited Center, Ghent University Hospital, Ghent, Belgium
| | - Karel Everaert
- Department of Urology, eUROGEN Accredited Center, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
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3
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Wang Y, Muylaert C, Wyns A, Vlummens P, De Veirman K, Vanderkerken K, Zaal E, Berkers C, Moreaux J, De Bruyne E, Menu E. S-adenosylmethionine biosynthesis is a targetable metabolic vulnerability in multiple myeloma. Haematologica 2024; 109:256-271. [PMID: 37470139 PMCID: PMC10772537 DOI: 10.3324/haematol.2023.282866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/01/2023] [Accepted: 07/11/2023] [Indexed: 07/21/2023] Open
Abstract
Multiple myeloma (MM) is the second most prevalent hematologic malignancy and is incurable because of the inevitable development of drug resistance. Methionine adenosyltransferase 2α (MAT2A) is the primary producer of the methyl donor S-adenosylmethionine (SAM) and several studies have documented MAT2A deregulation in different solid cancers. As the role of MAT2A in MM has not been investigated yet, the aim of this study was to clarify the potential role and underlying molecular mechanisms of MAT2A in MM, exploring new therapeutic options to overcome drug resistance. By analyzing publicly available gene expression profiling data, MAT2A was found to be more highly expressed in patient-derived myeloma cells than in normal bone marrow plasma cells. The expression of MAT2A correlated with an unfavorable prognosis in relapsed patients. MAT2A inhibition in MM cells led to a reduction in intracellular SAM levels, which resulted in impaired cell viability and proliferation, and induction of apoptosis. Further mechanistic investigation demonstrated that MAT2A inhibition inactivated the mTOR-4EBP1 pathway, accompanied by a decrease in protein synthesis. MAT2A targeting in vivo with the small molecule compound FIDAS-5 was able to significantly reduce tumor burden in the 5TGM1 model. Finally, we found that MAT2A inhibition can synergistically enhance the anti-MM effect of the standard-of-care agent bortezomib on both MM cell lines and primary human CD138+ MM cells. In summary, we demonstrate that MAT2A inhibition reduces MM cell proliferation and survival by inhibiting mTOR-mediated protein synthesis. Moreover, our findings suggest that the MAT2A inhibitor FIDAS-5 could be a novel compound to improve bortezomib-based treatment of MM.
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Affiliation(s)
- Yanmeng Wang
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette
| | - Catharina Muylaert
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette
| | - Arne Wyns
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette
| | - Philip Vlummens
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette, Belgium; Department of Clinical Hematology, Ghent University Hospital - Gent
| | - Kim De Veirman
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette
| | - Esther Zaal
- Utrecht Metabolism Expertise Centre, Nieuw Gildestein - Utrecht
| | - Celia Berkers
- Utrecht Metabolism Expertise Centre, Nieuw Gildestein - Utrecht
| | - Jérome Moreaux
- Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, CHU Montpellier - Montpellier, France; Institute of Human Genetics, University of Montpellier - Montpellier, France; Institut Universitaire de France - Paris
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette.
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel - Jette.
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Fan R, Satilmis H, Vandewalle N, Verheye E, De Bruyne E, Menu E, De Beule N, De Becker A, Ates G, Massie A, Kerre T, Törngren M, Eriksson H, Vanderkerken K, Breckpot K, Maes K, De Veirman K. Targeting S100A9 protein affects mTOR-ER stress signaling and increases venetoclax sensitivity in Acute Myeloid Leukemia. Blood Cancer J 2023; 13:188. [PMID: 38110349 PMCID: PMC10728073 DOI: 10.1038/s41408-023-00962-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/20/2023] Open
Abstract
Acute Myeloid Leukemia (AML) is a heterogeneous disease with limited treatment options and a high demand for novel targeted therapies. Since myeloid-related protein S100A9 is abundantly expressed in AML, we aimed to unravel the therapeutic impact and underlying mechanisms of targeting both intracellular and extracellular S100A9 protein in AML cell lines and primary patient samples. S100A9 silencing in AML cell lines resulted in increased apoptosis and reduced AML cell viability and proliferation. These therapeutic effects were associated with a decrease in mTOR and endoplasmic reticulum stress signaling. Comparable results on AML cell proliferation and mTOR signaling could be observed using the clinically available S100A9 inhibitor tasquinimod. Interestingly, while siRNA-mediated targeting of S100A9 affected both extracellular acidification and mitochondrial metabolism, tasquinimod only affected the mitochondrial function of AML cells. Finally, we found that S100A9-targeting approaches could significantly increase venetoclax sensitivity in AML cells, which was associated with a downregulation of BCL-2 and c-MYC in the combination group compared to single agent therapy. This study identifies S100A9 as a novel molecular target to treat AML and supports the therapeutic evaluation of tasquinimod in venetoclax-based regimens for AML patients.
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Affiliation(s)
- Rong Fan
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Hatice Satilmis
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Niels Vandewalle
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Emma Verheye
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, Pleinlaan 2, 1050, Brussels, Belgium
| | - Elke De Bruyne
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Eline Menu
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Nathan De Beule
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel, Brussels, Belgium. Laarbeeklaan 101, 1090, Brussel, Belgium
| | - Ann De Becker
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel, Brussels, Belgium. Laarbeeklaan 101, 1090, Brussel, Belgium
| | - Gamze Ates
- Neuro-Aging & Viro-Immunotherapy, Center for Neurosciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090, Brussel, Belgium
| | - Ann Massie
- Neuro-Aging & Viro-Immunotherapy, Center for Neurosciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090, Brussel, Belgium
| | - Tessa Kerre
- Department of Hematology, Ghent University Hospital, Faculty of Medicine and Health Sciences, Ghent University, 9000, Ghent, Belgium
| | - Marie Törngren
- Active Biotech AB, Lund, Sweden. Scheelevägen 22, 22363, Lund, Sweden
| | - Helena Eriksson
- Active Biotech AB, Lund, Sweden. Scheelevägen 22, 22363, Lund, Sweden
| | - Karin Vanderkerken
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
| | - Karine Breckpot
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090, Brussel, Belgium
| | - Ken Maes
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium
- Clinical Sciences, Research Group Reproduction and Genetics, Centre for Medical Genetics, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 103, 1090, Brussel, Belgium
| | - Kim De Veirman
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium.
- Translational Oncology Research Center, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, Building D, 1090, Brussel, Belgium.
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel, Brussels, Belgium. Laarbeeklaan 101, 1090, Brussel, Belgium.
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Emde-Rajaratnam M, Beck S, Benes V, Salwender H, Bertsch U, Scheid C, Hänel M, Weisel K, Hielscher T, Raab MS, Goldschmidt H, Jauch A, Maes K, De Bruyne E, Menu E, De Veirman K, Moreaux J, Vanderkerken K, Seckinger A, Hose D. RNA-sequencing based first choice of treatment and determination of risk in multiple myeloma. Front Immunol 2023; 14:1286700. [PMID: 38035078 PMCID: PMC10684778 DOI: 10.3389/fimmu.2023.1286700] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Background Immunotherapeutic targets in multiple myeloma (MM) have variable expression height and are partly expressed in subfractions of patients only. With increasing numbers of available compounds, strategies for appropriate choice of targets (combinations) are warranted. Simultaneously, risk assessment is advisable as patient's life expectancy varies between months and decades. Methods We first assess feasibility of RNA-sequencing in a multicenter trial (GMMG-MM5, n=604 patients). Next, we use a clinical routine cohort of untreated symptomatic myeloma patients undergoing autologous stem cell transplantation (n=535, median follow-up (FU) 64 months) to perform RNA-sequencing, gene expression profiling (GEP), and iFISH by ten-probe panel on CD138-purified malignant plasma cells. We subsequently compare target expression to plasma cell precursors, MGUS (n=59), asymptomatic (n=142) and relapsed (n=69) myeloma patients, myeloma cell lines (n=26), and between longitudinal samples (MM vs. relapsed MM). Data are validated using the independent MMRF CoMMpass-cohort (n=767, FU 31 months). Results RNA-sequencing is feasible in 90.8% of patients (GMMG-MM5). Actionable immune-oncological targets (n=19) can be divided in those expressed in all normal and >99% of MM-patients (CD38, SLAMF7, BCMA, GPRC5D, FCRH5, TACI, CD74, CD44, CD37, CD79B), those with expression loss in subfractions of MM-patients (BAFF-R [81.3%], CD19 [57.9%], CD20 [82.8%], CD22 [28.4%]), aberrantly expressed in MM (NY-ESO1/2 [12%], MUC1 [12.7%], CD30 [4.9%], mutated BRAF V600E/K [2.1%]), and resistance-conveying target-mutations e.g., against part but not all BCMA-directed treatments. Risk is assessable regarding proliferation, translated GEP- (UAMS70-, SKY92-, RS-score) and de novo (LfM-HRS) defined risk scores. LfM-HRS delineates three groups of 40%, 38%, and 22% of patients with 5-year and 12-year survival rates of 84% (49%), 67% (18%), and 32% (0%). R-ISS and RNA-sequencing identify partially overlapping patient populations, with R-ISS missing, e.g., 30% (22/72) of highly proliferative myeloma. Conclusion RNA-sequencing based assessment of risk and targets for first choice treatment is possible in clinical routine.
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Affiliation(s)
- Martina Emde-Rajaratnam
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Susanne Beck
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
- Universitätsklinikum Heidelberg, Molekularpathologisches Zentrum, Heidelberg, Germany
| | - Vladimir Benes
- Europäisches Laboratorium für Molekularbiologie, GeneCore, Heidelberg, Germany
| | - Hans Salwender
- Asklepios Tumorzentrum Hamburg, AK Altona and St. Georg, Hamburg, Germany
| | - Uta Bertsch
- Universitätsklinikum Heidelberg, Medizinische Klinik V, Heidelberg, Germany
| | - Christoph Scheid
- Department I of Internal Medicine, University of Cologne, Cologne, Germany
| | - Mathias Hänel
- Department of Internal Medicine III, Klinikum Chemnitz GmbH, Chemnitz, Germany
| | - Katja Weisel
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section of Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Hielscher
- Deutsches Krebsforschungszentrum, Abteilung für Biostatistik, Heidelberg, Germany
| | - Marc S. Raab
- Universitätsklinikum Heidelberg, Medizinische Klinik V, Heidelberg, Germany
| | - Hartmut Goldschmidt
- Universitätsklinikum Heidelberg, Medizinische Klinik V, Heidelberg, Germany
- Nationales Centrum für Tumorerkrankungen, Heidelberg, Germany
| | - Anna Jauch
- Universität Heidelberg, Institut für Humangenetik, Heidelberg, Germany
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Jérôme Moreaux
- Institute of Human Genetics, UMR 9002 CNRS-UM, Montpellier, France
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Anja Seckinger
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
| | - Dirk Hose
- Department of Hematology and Immunology, Myeloma Center Brussels & Labor für Myelomforschung, Vrije Universiteit Brussel (VUB), Jette, Belgium
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6
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De Bruyne E, Willem L, Van Hoeck K, Reynaert S, Vankerckhove S, Adams B, Leroi S, Collard L, Michaux A, Godefroid N, Mekahli D, Knops N, Eloot S, Raes A, Walle JV, Van Hoecke E, Snauwaert E, Levtchenko E. Illness-related parental stress and quality of life in children with kidney diseases. Pediatr Nephrol 2023; 38:2719-2731. [PMID: 36929385 DOI: 10.1007/s00467-023-05911-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND This cross-sectional study investigated quality of life (QoL) and illness-related parental stress in children with kidney diseases by (1) comparing mean levels of these two variables between several kidney disease categories; (2) exploring correlations between QoL and parental stress; and (3) describing which disease category reports lowest QoL and highest parental stress. METHODS We included 295 patients with a kidney disease (0-18 years) and their parents, followed at 6 reference centers for pediatric nephrology. Children's QoL was assessed by the PedsQL™ 4.0 Generic Core Scales, and illness-related stress by the Pediatric Inventory for Parents. All patients were divided into 5 kidney disease categories according to the multidisciplinary care program criteria prescribed by the Belgian authorities: (1) structural kidney diseases, (2) tubulopathies and metabolic diseases, (3) nephrotic syndrome, (4) acquired diseases with proteinuria and hypertension, and (5) kidney transplantation. RESULTS Child self-reports showed no differences in QoL between kidney disease categories, in contrast to parent proxy reports. Parents of transplant patients reported lower QoL in their child and more parental stress compared with the 4 non-transplant categories. QoL and parental stress were negatively correlated. Lowest QoL and highest parental stress scores were mainly found in transplant patients. CONCLUSIONS This study showed lower QoL and higher parental stress in pediatric transplant patients compared with non-transplants, based on parent reports. Higher parental stress is associated with worse QoL in the child. These results highlight the importance of multidisciplinary care for children with kidney diseases, with special attention to transplant patients and their parents. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Elke De Bruyne
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium.
| | - Lore Willem
- Department of Child Nephrology and Organ Transplantation, Leuven University Hospital, Louvain, Belgium.
| | - Koen Van Hoeck
- Department of Pediatric Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Sarah Reynaert
- Department of Pediatric Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Sylvie Vankerckhove
- Department of Pediatric Nephrology, Queen Fabiola Children's University Hospital Brussels, Brussels, Belgium
| | - Brigitte Adams
- Department of Pediatric Nephrology, Queen Fabiola Children's University Hospital Brussels, Brussels, Belgium
| | - Stéphanie Leroi
- Department of Pediatric Nephrology, CHC-MontLégia, Health Group CHC Liège, Liege, Belgium
| | - Laure Collard
- Department of Pediatric Nephrology, CHC-MontLégia, Health Group CHC Liège, Liege, Belgium
| | - Aline Michaux
- Department of Pediatric Nephrology, Saint-Luc Brussels University Hospital, Brussels, Belgium
| | - Nathalie Godefroid
- Department of Pediatric Nephrology, Saint-Luc Brussels University Hospital, Brussels, Belgium
| | - Djalila Mekahli
- Department of Child Nephrology and Organ Transplantation, Leuven University Hospital, Louvain, Belgium
| | - Noël Knops
- Department of Child Nephrology and Organ Transplantation, Leuven University Hospital, Louvain, Belgium
| | - Sunny Eloot
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Ann Raes
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Eline Van Hoecke
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium
| | - Evelien Snauwaert
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Elena Levtchenko
- Department of Child Nephrology and Organ Transplantation, Leuven University Hospital, Louvain, Belgium
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7
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Wyns A, Hendrix J, Lahousse A, De Bruyne E, Nijs J, Godderis L, Polli A. The Biology of Stress Intolerance in Patients with Chronic Pain—State of the Art and Future Directions. J Clin Med 2023; 12:jcm12062245. [PMID: 36983246 PMCID: PMC10057496 DOI: 10.3390/jcm12062245] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
Stress has been consistently linked to negative impacts on physical and mental health. More specifically, patients with chronic pain experience stress intolerance, which is an exacerbation or occurrence of symptoms in response to any type of stress. The pathophysiological mechanisms underlying this phenomenon remain unsolved. In this state-of-the-art paper, we summarised the role of the autonomic nervous system (ANS) and hypothalamus-pituitary-adrenal (HPA) axis, the two major stress response systems in stress intolerance. We provided insights into such mechanisms based on evidence from clinical studies in both patients with chronic pain, showing dysregulated stress systems, and healthy controls supported by preclinical studies, highlighting the link between these systems and symptoms of stress intolerance. Furthermore, we explored the possible regulating role for (epi)genetic mechanisms influencing the ANS and HPA axis. The link between stress and chronic pain has become an important area of research as it has the potential to inform the development of interventions to improve the quality of life for individuals living with chronic pain. As stress has become a prevalent concern in modern society, understanding the connection between stress, HPA axis, ANS, and chronic health conditions such as chronic pain is crucial to improve public health and well-being.
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Affiliation(s)
- Arne Wyns
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.W.); (A.L.); (J.N.); (A.P.)
| | - Jolien Hendrix
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.W.); (A.L.); (J.N.); (A.P.)
- Department of Public Health and Primary Care, Centre for Environment & Health, KU Leuven, Kapucijnenvoer 35, 3000 Leuven, Belgium;
- Flanders Research Foundation-FWO, 1090 Brussels, Belgium
- Correspondence:
| | - Astrid Lahousse
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.W.); (A.L.); (J.N.); (A.P.)
- Flanders Research Foundation-FWO, 1090 Brussels, Belgium
- Chronic Pain Rehabilitation, Department of Physical Medicine and Physiotherapy, University Hospital, 1090 Brussels, Belgium
- Rehabilitation Research (RERE) Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education & Physiotherapy (KIMA), Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussels, Belgium;
| | - Jo Nijs
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.W.); (A.L.); (J.N.); (A.P.)
- Chronic Pain Rehabilitation, Department of Physical Medicine and Physiotherapy, University Hospital, 1090 Brussels, Belgium
- Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Lode Godderis
- Department of Public Health and Primary Care, Centre for Environment & Health, KU Leuven, Kapucijnenvoer 35, 3000 Leuven, Belgium;
- External Service for Prevention and Protection at Work, IDEWE, 3001 Heverlee, Belgium
| | - Andrea Polli
- Pain in Motion Research Group (PAIN), Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, 1090 Brussels, Belgium; (A.W.); (A.L.); (J.N.); (A.P.)
- Department of Public Health and Primary Care, Centre for Environment & Health, KU Leuven, Kapucijnenvoer 35, 3000 Leuven, Belgium;
- Flanders Research Foundation-FWO, 1090 Brussels, Belgium
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8
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Van der Vreken A, Oudaert I, Ates G, Faict S, Vlummens P, Satilmis H, Fan R, Maes A, Massie A, De Veirman K, De Bruyne E, Vanderkerken K, Menu E. Metformin confers sensitization to syrosingopine in Multiple Myeloma cells by metabolic blockage and inhibition of protein synthesis. J Pathol 2023; 260:112-123. [PMID: 36807305 DOI: 10.1002/path.6066] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 09/08/2022] [Revised: 01/12/2023] [Accepted: 02/14/2023] [Indexed: 02/20/2023]
Abstract
Multiple Myeloma (MM) remains an incurable haematological malignancy despite substantial advances in therapy. The hypoxic bone marrow induces metabolic rewiring in MM cells contributing to survival and drug resistance. Therefore, targeting metabolic pathways may offer an alternative treatment option. In this study, we re-purpose two FDA-approved drugs, syrosingopine and metformin. Syrosingopine was used as a dual inhibitor of monocarboxylate transporter 1 and 4 (MCT1/4) and metformin as an inhibitor for oxidative phosphorylation (OXPHOS). Anti-tumour effects were evaluated for single agents and in combination therapy. Survival and expression data for MCT1/MCT4 were obtained from the TT2, Mulligan and MMRF-cohort. Cell death, viability and proliferation were measured using Annexin V/7-AAD, CellTiterGlo and BrdU, respectively. Metabolic effects were assessed using Seahorse Glycolytic Rate assays and LactateGlo assays. Differential protein expression was determined using western blotting and the SUnSET method was implemented to quantify protein synthesis. Finally, the syngeneic 5T33MMvv model was used for in vivo analysis. High level expression of MCT1 and MCT4 both correlated with a significantly lower overall survival of patients. Lactate production as well as MCT1/MCT4 expression were significantly upregulated in hypoxia, confirming the Warburg effect in MM. Dual inhibition of MCT1/4 with syrosingopine resulted in intracellular lactate accumulation and reduced cell viability and proliferation. However, only at higher doses (>10 μM), was syrosingopine able to induce cell death. By contrast, combination treatment of syrosingopine with metformin was highly cytotoxic for MM cell lines and primary patient samples and resulted in a suppression of both glycolysis and OXPHOS. Moreover, pathway analysis revealed an upregulation of the energy sensor p-AMPKα, and more downstream a reduction in protein synthesis. Finally, the combination treatment resulted in a significant reduction in tumour burden in vivo. This study proposes an alternative combination treatment for MM and provides insight in the intracellular effects. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Arne Van der Vreken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Inge Oudaert
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Gamze Ates
- Center for Neurosciences, Neuro-Aging & Viro-Immunotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sylvia Faict
- Department of Hematology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium.,Department of Clinical Hematology, Ghent University Hospital, Ghent, Belgium
| | - Hatice Satilmis
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Rong Fan
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Anke Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Ann Massie
- Center for Neurosciences, Neuro-Aging & Viro-Immunotherapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, (VUB), Belgium
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Fan R, Satilmis H, Vandewalle N, Verheye E, Vlummens P, Maes A, Muylaert C, De Bruyne E, Menu E, Evans H, Chantry A, De Beule N, Hose D, Törngren M, Eriksson H, Vanderkerken K, Maes K, Breckpot K, De Veirman K. Tasquinimod suppresses tumor cell growth and bone resorption by targeting immunosuppressive myeloid cells and inhibiting c-MYC expression in multiple myeloma. J Immunother Cancer 2023; 11:jitc-2022-005319. [PMID: 36650020 PMCID: PMC9853259 DOI: 10.1136/jitc-2022-005319] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Immunotherapy emerged as a promising treatment option for multiple myeloma (MM) patients. However, therapeutic efficacy can be hampered by the presence of an immunosuppressive bone marrow microenvironment including myeloid cells. S100A9 was previously identified as a key regulator of myeloid cell accumulation and suppressive activity. Tasquinimod, a small molecule inhibitor of S100A9, is currently in a phase Ib/IIa clinical trial in MM patients (NCT04405167). We aimed to gain more insights into its mechanisms of action both on the myeloma cells and the immune microenvironment. METHODS We analyzed the effects of tasquinimod on MM cell viability, cell proliferation and downstream signaling pathways in vitro using RNA sequencing, real-time PCR, western blot analysis and multiparameter flow cytometry. Myeloid cells and T cells were cocultured at different ratios to assess tasquinimod-mediated immunomodulatory effects. The in vivo impact on immune cells (myeloid cell subsets, macrophages, dendritic cells), tumor load, survival and bone disease were elucidated using immunocompetent 5TMM models. RESULTS Tasquinimod treatment significantly decreased myeloma cell proliferation and colony formation in vitro, associated with an inhibition of c-MYC and increased p27 expression. Tasquinimod-mediated targeting of the myeloid cell population resulted in increased T cell proliferation and functionality in vitro. Notably, short-term tasquinimod therapy of 5TMM mice significantly increased the total CD11b+ cells and shifted this population toward a more immunostimulatory state, which resulted in less myeloid-mediated immunosuppression and increased T cell activation ex vivo. Tasquinimod significantly reduced the tumor load and increased the trabecular bone volume, which resulted in prolonged overall survival of MM-bearing mice in vivo. CONCLUSION Our study provides novel insights in the dual therapeutic effects of the immunomodulator tasquinimod and fosters its evaluation in combination therapy trials for MM patients.
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Affiliation(s)
- Rong Fan
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hatice Satilmis
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Niels Vandewalle
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Emma Verheye
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium,Lab of Dendritic Cell Biology and Cancer Immunotherapy, VIB Center for Inflammation Research, Brussels, Belgium
| | - Philip Vlummens
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium,Department of Clinical Hematology, Universitair Ziekenhuis Gent, Ghent, Belgium
| | - Anke Maes
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Catharina Muylaert
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Holly Evans
- Department of Oncology and Metabolism, Sheffield Myeloma Research Team, University of Sheffield, Sheffield, UK
| | - Andrew Chantry
- Department of Oncology and Metabolism, Sheffield Myeloma Research Team, University of Sheffield, Sheffield, UK
| | - Nathan De Beule
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Dirk Hose
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | | | | | - Karin Vanderkerken
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Center for Medical Genetics, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Karine Breckpot
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Laboratory for Hematology and Immunology, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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10
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Satilmis H, Verheye E, Vlummens P, Oudaert I, Vandewalle N, Fan R, Knight JM, De Beule N, Ates G, Massie A, Moreaux J, Maes A, De Bruyne E, Vanderkerken K, Menu E, Sloan EK, De Veirman K. Targeting the β 2 -adrenergic receptor increases chemosensitivity in multiple myeloma by induction of apoptosis and modulating cancer cell metabolism. J Pathol 2023; 259:69-80. [PMID: 36245401 PMCID: PMC10953387 DOI: 10.1002/path.6020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 09/26/2022] [Accepted: 10/13/2022] [Indexed: 11/08/2022]
Abstract
While multi-drug combinations and continuous treatment have become standard for multiple myeloma, the disease remains incurable. Repurposing drugs that are currently used for other indications could provide a novel approach to improve the therapeutic efficacy of standard multiple myeloma treatments. Here, we assessed the anti-tumor effects of cardiac drugs called β-blockers as a single agent and in combination with commonly used anti-myeloma therapies. Expression of the β2 -adrenergic receptor correlated with poor survival outcomes in patients with multiple myeloma. Targeting the β2 -adrenergic receptor (β2 AR) using either selective or non-selective β-blockers reduced multiple myeloma cell viability, and induced apoptosis and autophagy. Blockade of the β2 AR modulated cancer cell metabolism by reducing the mitochondrial respiration as well as the glycolytic activity. These effects were not observed by blockade of β1 -adrenergic receptors. Combining β2 AR blockade with the chemotherapy drug melphalan or the proteasome inhibitor bortezomib significantly increased apoptosis in multiple myeloma cells. These data identify the therapeutic potential of β2 AR-blockers as a complementary or additive approach in multiple myeloma treatment and support the future clinical evaluation of non-selective β-blockers in a randomized controlled trial. © 2022 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Hatice Satilmis
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Emma Verheye
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
- Laboratory of Myeloid Cell ImmunologyVIB Center for Inflammation ResearchBrusselsBelgium
- Laboratory of Cellular and Molecular ImmunologyVrije Universiteit BrusselBrusselsBelgium
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
- Department of Clinical HematologyUniversitair Ziekenhuis GentGhentBelgium
| | - Inge Oudaert
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Niels Vandewalle
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Rong Fan
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Jennifer M Knight
- Departments of Psychiatry, Medicine, and Microbiology & ImmunologyMedical College of WisconsinMilwaukeeWIUSA
| | - Nathan De Beule
- Department of Clinical HematologyUniversitair Ziekenhuis Brussel, Vrije Universiteit BrusselBrusselsBelgium
| | - Gamze Ates
- Neuro‐Aging & Viro‐Immunotherapy, Center for NeurosciencesVrije Universiteit BrusselBrusselsBelgium
| | - Ann Massie
- Neuro‐Aging & Viro‐Immunotherapy, Center for NeurosciencesVrije Universiteit BrusselBrusselsBelgium
| | - Jerome Moreaux
- Institute of Human Genetics, CNRSUniversity of MontpellierMontpellierFrance
- Laboratory for Monitoring Innovative Therapies, Department of Biological HematologyCHU MontpellierMontpellierFrance
- Institut Universitaire de FranceParisFrance
| | - Anke Maes
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
| | - Erica K Sloan
- Monash Institute of Pharmaceutical Sciences, Drug Discovery Biology ThemeMonash UniversityParkvilleVICAustralia
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center BrusselsVrije Universiteit BrusselBrusselsBelgium
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11
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Fan R, De Beule N, Maes A, De Bruyne E, Menu E, Vanderkerken K, Maes K, Breckpot K, De Veirman K. The prognostic value and therapeutic targeting of myeloid-derived suppressor cells in hematological cancers. Front Immunol 2022; 13:1016059. [PMID: 36304465 PMCID: PMC9592826 DOI: 10.3389/fimmu.2022.1016059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/10/2022] [Accepted: 09/16/2022] [Indexed: 11/22/2022] Open
Abstract
The success of immunotherapeutic approaches in hematological cancers is partially hampered by the presence of an immunosuppressive microenvironment. Myeloid-derived suppressor cells (MDSC) are key components of this suppressive environment and are frequently associated with tumor cell survival and drug resistance. Based on their morphology and phenotype, MDSC are commonly subdivided into polymorphonuclear MDSC (PMN-MDSC or G-MDSC) and monocytic MDSC (M-MDSC), both characterized by their immunosuppressive function. The phenotype, function and prognostic value of MDSC in hematological cancers has been intensively studied; however, the therapeutic targeting of this cell population remains challenging and needs further investigation. In this review, we will summarize the prognostic value of MDSC and the different attempts to target MDSC (or subtypes of MDSC) in hematological cancers. We will discuss the benefits, challenges and opportunities of using MDSC-targeting approaches, aiming to enhance anti-tumor immune responses of currently used cellular and non-cellular immunotherapies.
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Affiliation(s)
- Rong Fan
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nathan De Beule
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Anke Maes
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Center for Medical Genetics, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Karine Breckpot
- Laboratory for Molecular and Cellular Therapy, Department of Biomedical Sciences Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
- *Correspondence: Kim De Veirman,
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12
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Oudaert I, Van der Vreken A, Maes A, De Bruyne E, De Veirman K, Vanderkerken K, Menu E. Metabolic cross-talk within the bone marrow milieu: focus on multiple myeloma. Exp Hematol Oncol 2022; 11:49. [PMID: 36050788 PMCID: PMC9438316 DOI: 10.1186/s40164-022-00303-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Cancer cells are well-known for their capacity to adapt their metabolism to their increasing energy demands which is necessary for tumor progression. This is no different for Multiple Myeloma (MM), a hematological cancer which develops in the bone marrow (BM), whereby the malignant plasma cells accumulate and impair normal BM functions. It has become clear that the hypoxic BM environment contributes to metabolic rewiring of the MM cells, including changes in metabolite levels, increased/decreased activity of metabolic enzymes and metabolic shifts. These adaptations will lead to a pro-tumoral environment stimulating MM growth and drug resistance In this review, we discuss the identified metabolic changes in MM and the BM microenvironment and summarize how these identified changes have been targeted (by inhibitors, genetic approaches or deprivation studies) in order to block MM progression and survival.
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Affiliation(s)
- Inge Oudaert
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Arne Van der Vreken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Anke Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090, Brussels, Belgium.
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13
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Muylaert C, Van Hemelrijck LA, Maes A, De Veirman K, Menu E, Vanderkerken K, De Bruyne E. Aberrant DNA methylation in multiple myeloma: A major obstacle or an opportunity? Front Oncol 2022; 12:979569. [PMID: 36059621 PMCID: PMC9434119 DOI: 10.3389/fonc.2022.979569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
Drug resistance (DR) of cancer cells leading to relapse is a huge problem nowadays to achieve long-lasting cures for cancer patients. This also holds true for the incurable hematological malignancy multiple myeloma (MM), which is characterized by the accumulation of malignant plasma cells in the bone marrow (BM). Although new treatment approaches combining immunomodulatory drugs, corticosteroids, proteasome inhibitors, alkylating agents, and monoclonal antibodies have significantly improved median life expectancy, MM remains incurable due to the development of DR, with the underlying mechanisms remaining largely ill-defined. It is well-known that MM is a heterogeneous disease, encompassing both genetic and epigenetic aberrations. In normal circumstances, epigenetic modifications, including DNA methylation and posttranslational histone modifications, play an important role in proper chromatin structure and transcriptional regulation. However, in MM, numerous epigenetic defects or so-called ‘epimutations’ have been observed and this especially at the level of DNA methylation. These include genome-wide DNA hypomethylation, locus specific hypermethylation and somatic mutations, copy number variations and/or deregulated expression patterns in DNA methylation modifiers and regulators. The aberrant DNA methylation patterns lead to reduced gene expression of tumor suppressor genes, genomic instability, DR, disease progression, and high-risk disease. In addition, the frequency of somatic mutations in the DNA methylation modifiers seems increased in relapsed patients, again suggesting a role in DR and relapse. In this review, we discuss the recent advances in understanding the involvement of aberrant DNA methylation patterns and/or DNA methylation modifiers in MM development, progression, and relapse. In addition, we discuss their involvement in MM cell plasticity, driving myeloma cells to a cancer stem cell state characterized by a more immature and drug-resistant phenotype. Finally, we briefly touch upon the potential of DNA methyltransferase inhibitors to prevent relapse after treatment with the current standard of care agents and/or new, promising (immuno) therapies.
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14
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Vlummens P, Verhulst S, De Veirman K, Maes A, Menu E, Moreaux J, De Boussac H, Robert N, De Bruyne E, Hose D, Offner F, Vanderkerken K, Maes K. Inhibition of the Protein Arginine Methyltransferase PRMT5 in High-Risk Multiple Myeloma as a Novel Treatment Approach. Front Cell Dev Biol 2022; 10:879057. [PMID: 35757005 PMCID: PMC9213887 DOI: 10.3389/fcell.2022.879057] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/06/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple myeloma (MM) is an incurable clonal plasma cell malignancy. Subsets of patients have high-risk features linked with dismal outcome. Therefore, the need for effective therapeutic options remains high. Here, we used bio-informatic tools to identify novel targets involved in DNA repair and epigenetics and which are associated with high-risk myeloma. The prognostic significance of the target genes was analyzed using publicly available gene expression data of MM patients (TT2/3 and HM cohorts). Hence, protein arginine methyltransferase 5 (PRMT5) was identified as a promising target. Druggability was assessed in OPM2, JJN3, AMO1 and XG7 human myeloma cell lines using the PRMT5-inhibitor EPZ015938. EPZ015938 strongly reduced the total symmetric-dimethyl arginine levels in all cell lines and lead to decreased cellular growth, supported by cell line dependent changes in cell cycle distribution. At later time points, apoptosis occurred, as evidenced by increased AnnexinV-positivity and cleavage of PARP and caspases. Transcriptome analysis revealed a role for PRMT5 in regulating alternative splicing, nonsense-mediated decay, DNA repair and PI3K/mTOR-signaling, irrespective of the cell line type. PRMT5 inhibition reduced the expression of upstream DNA repair kinases ATM and ATR, which may in part explain our observation that EPZ015938 and the DNA-alkylating agent, melphalan, have combinatory effects. Of interest, using a low-dose of mTOR-inhibitor, we observed that cell viability was partially rescued from the effects of EPZ015938, indicating a role for mTOR-related pathways in the anti-myeloma activity of EPZ015938. Moreover, PRMT5 was shown to be involved in splicing regulation of MMSET and SLAMF7, known genes of importance in MM disease. As such, we broaden the understanding of the exact role of PRMT5 in MM disease and further underline its use as a possible therapeutic target.
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Affiliation(s)
- Philip Vlummens
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Department of Clinical Hematology, Ghent University Hospital, Ghent, Belgium
| | - Stefaan Verhulst
- Liver Cell Biology Lab, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Anke Maes
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Jérome Moreaux
- CHU Montpellier, Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, Montpellier, France.,Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Institut Universitaire de France, IUF, Paris, France
| | - Hugues De Boussac
- CHU Montpellier, Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, Montpellier, France
| | - Nicolas Robert
- CHU Montpellier, Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, Montpellier, France
| | - Elke De Bruyne
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Dirk Hose
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Fritz Offner
- Department of Clinical Hematology, Ghent University Hospital, Ghent, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Center for Medical Genetics, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ), Brussels, Belgium
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15
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De Bruyne E, Eloot S, Vande Walle J, Raes A, Van Biesen W, Goubert L, Vervoort T, Snauwaert E, Van Hoecke E. Validity and reliability of the Dutch version of the PedsQL™ 3.0 End Stage Renal Disease Module in children with chronic kidney disease in Belgium. Pediatr Nephrol 2022; 37:1087-1096. [PMID: 34599378 DOI: 10.1007/s00467-021-05224-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/10/2021] [Accepted: 06/29/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Children with chronic kidney disease (CKD) have a low quality of life (QoL). The PedsQL™ 4.0 Generic Core Scales are widely used to assess general QoL in children. The aim of this cross-sectional study was to translate the original version of the CKD-specific PedsQL™ 3.0 End Stage Renal Disease Module into a Dutch version and to evaluate its validity and reliability. METHODS The forward-backward translation method based on the guidelines from the original developer was used to produce the Dutch version of the PedsQL™ 3.0 ESRD Module. Fifty-eight CKD patients (aged 8-18 years) and their parents (n = 31) filled in both generic and disease-specific modules. The non-clinical control group consisted of the same number of healthy children (matched for gender and age) and their parents. RESULTS Cronbach's alpha coefficients (α's) for the PedsQL™ 3.0 ESRD Module demonstrated excellent reliability for the Total Scale scores. For all 7 subscales, α's were greater than 0.60, except for Perceived Physical Appearance. Overall, intercorrelations with the PedsQL™ 4.0 Generic Core Scales were in the medium to large range, supporting construct validity. Parent proxy reports showed lower generic QoL for all domains in CKD patients compared to healthy children. Child self-reports only demonstrated lower QoL on the domain School Functioning in children with CKD compared to healthy children. CONCLUSIONS This study shows good validity and reliability for the Dutch version of the PedsQL™ 3.0 ESRD Module. However, testing with a larger study group is recommended in order to make final conclusions about the psychometric qualities of this measure. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Elke De Bruyne
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium.
| | - Sunny Eloot
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Ann Raes
- Department of Pediatric Nephrology & Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Wim Van Biesen
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Liesbet Goubert
- Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
| | - Tine Vervoort
- Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
| | | | - Eline Van Hoecke
- Pediatric Psychology, Department of Pediatrics, Ghent University Hospital, Ghent, Belgium
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16
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Oudaert I, Satilmis H, Vlummens P, De Brouwer W, Maes A, Hose D, De Bruyne E, Ghesquière B, Vanderkerken K, De Veirman K, Menu E. Pyrroline-5-Carboxylate Reductase 1: a novel target for sensitizing multiple myeloma cells to bortezomib by inhibition of PRAS40-mediated protein synthesis. J Exp Clin Cancer Res 2022; 41:45. [PMID: 35105345 PMCID: PMC8805317 DOI: 10.1186/s13046-022-02250-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/07/2022] [Indexed: 12/21/2022]
Abstract
Background Multiple myeloma (MM) remains an incurable cancer despite advances in therapy. Therefore, the search for new targets is still essential to uncover potential treatment strategies. Metabolic changes, induced by the hypoxic bone marrow, contribute to both MM cell survival and drug resistance. Pyrroline-5-carboxylate reductase 1 and 2 (PYCR1 and PYCR2) are two mitochondrial enzymes that facilitate the last step in the glutamine-to-proline conversion. Overexpression of PYCR1 is involved in progression of several cancers, however, its’ role in hematological cancers is unknown. In this study, we investigated whether PYCR affects MM viability, proliferation and response to bortezomib. Methods Correlation of PYCR1/2 with overall survival was investigated in the MMRF CoMMpass trial (653 patients). OPM-2 and RPMI-8226 MM cell lines were used to perform in vitro experiments. RPMI-8226 cells were supplemented with 13C-glutamine for 48 h in both normoxia and hypoxia (< 1% O2, by chamber) to perform a tracer study. PYCR1 was inhibited by siRNA or the small molecule inhibitor pargyline. Apoptosis was measured using Annexin V and 7-AAD staining, viability by CellTiterGlo assay and proliferation by BrdU incorporation. Differential protein expression was evaluated using Western Blot. The SUnSET method was used to measure protein synthesis. All in vitro experiments were performed in hypoxic conditions. Results We found that PYCR1 and PYCR2 mRNA expression correlated with an inferior overall survival. MM cells from relapsed/refractory patients express significantly higher levels of PYCR1 mRNA. In line with the strong expression of PYCR1, we performed a tracer study in RPMI-8226 cells, which revealed an increased conversion of 13C-glutamine to proline in hypoxia. PYCR1 inhibition reduced MM viability and proliferation and increased apoptosis. Mechanistically, we found that PYCR1 silencing reduced protein levels of p-PRAS40, p-mTOR, p-p70, p-S6, p-4EBP1 and p-eIF4E levels, suggesting a decrease in protein synthesis, which we also confirmed in vitro. Pargyline and siPYCR1 increased bortezomib-mediated apoptosis. Finally, combination therapy of pargyline with bortezomib reduced viability in CD138+ MM cells and reduced tumor burden in the murine 5TGM1 model compared to single agents. Conclusions This study identifies PYCR1 as a novel target in bortezomib-based combination therapies for MM. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02250-3.
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17
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Verheye E, Bravo Melgar J, Deschoemaeker S, Raes G, Maes A, De Bruyne E, Menu E, Vanderkerken K, Laoui D, De Veirman K. Dendritic Cell-Based Immunotherapy in Multiple Myeloma: Challenges, Opportunities, and Future Directions. Int J Mol Sci 2022; 23:ijms23020904. [PMID: 35055096 PMCID: PMC8778019 DOI: 10.3390/ijms23020904] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 12/23/2021] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Immunotherapeutic approaches, including adoptive cell therapy, revolutionized treatment in multiple myeloma (MM). As dendritic cells (DCs) are professional antigen-presenting cells and key initiators of tumor-specific immune responses, DC-based immunotherapy represents an attractive therapeutic approach in cancer. The past years, various DC-based approaches, using particularly ex-vivo-generated monocyte-derived DCs, have been tested in preclinical and clinical MM studies. However, long-term and durable responses in MM patients were limited, potentially attributed to the source of monocyte-derived DCs and the immunosuppressive bone marrow microenvironment. In this review, we briefly summarize the DC development in the bone marrow niche and the phenotypical and functional characteristics of the major DC subsets. We address the known DC deficiencies in MM and give an overview of the DC-based vaccination protocols that were tested in MM patients. Lastly, we also provide strategies to improve the efficacy of DC vaccines using new, improved DC-based approaches and combination therapies for MM patients.
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Affiliation(s)
- Emma Verheye
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Jesús Bravo Melgar
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Sofie Deschoemaeker
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Geert Raes
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Anke Maes
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Damya Laoui
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
- Correspondence: (D.L.); (K.D.V.); Tel.: +32-2-629-1978 (D.L.); +32-2-477-4535 (K.D.V.)
| | - Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
- Correspondence: (D.L.); (K.D.V.); Tel.: +32-2-629-1978 (D.L.); +32-2-477-4535 (K.D.V.)
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18
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Herviou L, Ovejero S, Izard F, Karmous-Gadacha O, Gourzones C, Bellanger C, De Smedt E, Ma A, Vincent L, Cartron G, Jin J, De Bruyne E, Grimaud C, Julien E, Moreaux J. Targeting the methyltransferase SETD8 impairs tumor cell survival and overcomes drug resistance independently of p53 status in multiple myeloma. Clin Epigenetics 2021; 13:174. [PMID: 34530900 PMCID: PMC8447659 DOI: 10.1186/s13148-021-01160-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 08/27/2021] [Indexed: 01/04/2023] Open
Abstract
Background Multiple myeloma (MM) is a malignancy of plasma cells that largely remains incurable. The search for new therapeutic targets is therefore essential. In addition to a wide panel of genetic mutations, epigenetic alterations also appear as important players in the development of this cancer, thereby offering the possibility to reveal novel approaches and targets for effective therapeutic intervention. Results Here, we show that a higher expression of the lysine methyltransferase SETD8, which is responsible for the mono-methylation of histone H4 at lysine 20, is an adverse prognosis factor associated with a poor outcome in two cohorts of newly diagnosed patients. Primary malignant plasma cells are particularly addicted to the activity of this epigenetic enzyme. Indeed, the inhibition of SETD8 by the chemical compound UNC-0379 and the subsequent decrease in histone H4 methylation at lysine 20 are highly toxic in MM cells compared to normal cells from the bone marrow microenvironment. At the molecular level, RNA sequencing and functional studies revealed that SETD8 inhibition induces a mature non-proliferating plasma cell signature and, as observed in other cancers, triggers an activation of the tumor suppressor p53, which together cause an impairment of myeloma cell proliferation and survival. However, a deadly level of replicative stress was also observed in p53-deficient myeloma cells treated with UNC-0379, indicating that the cytotoxicity associated with SETD8 inhibition is not necessarily dependent on p53 activation. Consistent with this, UNC-0379 triggers a p53-independent nucleolar stress characterized by nucleolin delocalization and reduction of nucleolar RNA synthesis. Finally, we showed that SETD8 inhibition is strongly synergistic with melphalan and may overcome resistance to this alkylating agent widely used in MM treatment. Conclusions Altogether, our data indicate that the up-regulation of the epigenetic enzyme SETD8 is associated with a poor outcome and the deregulation of major signaling pathways in MM. Moreover, we provide evidences that myeloma cells are dependent on SETD8 activity and its pharmacological inhibition synergizes with melphalan, which could be beneficial to improve MM treatment in high-risk patients whatever their status for p53. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-021-01160-z.
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Affiliation(s)
- Laurie Herviou
- IGH, CNRS, Univ Montpellier, Montpellier, France.,Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, CHU Montpellier, Montpellier, France.,University of Montpellier, 34090, Montpellier, France
| | - Sara Ovejero
- IGH, CNRS, Univ Montpellier, Montpellier, France.,Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, CHU Montpellier, Montpellier, France.,University of Montpellier, 34090, Montpellier, France
| | - Fanny Izard
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Institut Régional du Cancer (ICM), 34298, Montpellier, France.,University of Montpellier, 34090, Montpellier, France
| | - Ouissem Karmous-Gadacha
- Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, CHU Montpellier, Montpellier, France
| | | | | | - Eva De Smedt
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Anqi Ma
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Laure Vincent
- Department of Clinical Hematology, CHU Montpellier, Montpellier, France
| | - Guillaume Cartron
- University of Montpellier, 34090, Montpellier, France.,Department of Clinical Hematology, CHU Montpellier, Montpellier, France
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Charlotte Grimaud
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Institut Régional du Cancer (ICM), 34298, Montpellier, France.,University of Montpellier, 34090, Montpellier, France.,Centre National de La Recherche Scientifique (CNRS), 34293, Montpellier, France
| | - Eric Julien
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Institut Régional du Cancer (ICM), 34298, Montpellier, France. .,University of Montpellier, 34090, Montpellier, France. .,Centre National de La Recherche Scientifique (CNRS), 34293, Montpellier, France.
| | - Jérôme Moreaux
- IGH, CNRS, Univ Montpellier, Montpellier, France. .,Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, CHU Montpellier, Montpellier, France. .,University of Montpellier, 34090, Montpellier, France. .,Institut Universitaire de France (IUF), Paris, France.
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19
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Nylund P, Atienza Párraga A, Haglöf J, De Bruyne E, Menu E, Garrido-Zabala B, Ma A, Jin J, Öberg F, Vanderkerken K, Kalushkova A, Jernberg-Wiklund H. A distinct metabolic response characterizes sensitivity to EZH2 inhibition in multiple myeloma. Cell Death Dis 2021; 12:167. [PMID: 33579905 PMCID: PMC7881125 DOI: 10.1038/s41419-021-03447-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/04/2021] [Accepted: 01/14/2021] [Indexed: 02/07/2023]
Abstract
Multiple myeloma (MM) is a heterogeneous haematological disease that remains clinically challenging. Increased activity of the epigenetic silencer EZH2 is a common feature in patients with poor prognosis. Previous findings have demonstrated that metabolic profiles can be sensitive markers for response to treatment in cancer. While EZH2 inhibition (EZH2i) has proven efficient in inducing cell death in a number of human MM cell lines, we hereby identified a subset of cell lines that despite a global loss of H3K27me3, remains viable after EZH2i. By coupling liquid chromatography-mass spectrometry with gene and miRNA expression profiling, we found that sensitivity to EZH2i correlated with distinct metabolic signatures resulting from a dysregulation of genes involved in methionine cycling. Specifically, EZH2i resulted in a miRNA-mediated downregulation of methionine cycling-associated genes in responsive cells. This induced metabolite accumulation and DNA damage, leading to G2 arrest and apoptosis. Altogether, we unveiled that sensitivity to EZH2i in human MM cell lines is associated with a specific metabolic and gene expression profile post-treatment.
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Affiliation(s)
- Patrick Nylund
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Alba Atienza Párraga
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Jakob Haglöf
- Department of Medicinal Chemistry, Analytical Pharmaceutical Chemistry, Uppsala University, Uppsala, Sweden
| | - Elke De Bruyne
- Department of Haematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Eline Menu
- Department of Haematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Berta Garrido-Zabala
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Anqi Ma
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Fredrik Öberg
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Karin Vanderkerken
- Department of Haematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Antonia Kalushkova
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.
| | - Helena Jernberg-Wiklund
- Science for Life Laboratory, Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.
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20
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Faict S, Oudaert I, D’Auria L, Dehairs J, Maes K, Vlummens P, De Veirman K, De Bruyne E, Fostier K, Vande Broek I, Schots R, Vanderkerken K, Swinnen JV, Menu E. The Transfer of Sphingomyelinase Contributes to Drug Resistance in Multiple Myeloma. Cancers (Basel) 2019; 11:cancers11121823. [PMID: 31756922 PMCID: PMC6966559 DOI: 10.3390/cancers11121823] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023] Open
Abstract
Multiple myeloma (MM) is well-known for the development of drug resistance, leading to relapse. Therefore, finding novel treatment strategies remains necessary. By performing a lipidomics assay on MM patient plasma, we aimed to identify new targets. We observed a dysregulation in the sphingolipid metabolism, with the upregulation of several ceramides and downregulation of sphingomyelin. This imbalance suggests an increase in sphingomyelinase, the enzyme responsible for hydrolyzing sphingomyelin into ceramide. We confirmed the upregulation of acid sphingomyelinase (ASM) in primary MM cells. Furthermore, we observed an increase in ASM expression in MM cell lines treated with melphalan or bortezomib, as well as in their exosomes. Exosomes high in ASM content were able to transfer the drug-resistant phenotype to chemosensitive cells, hereby suggesting a tumor-protective role for ASM. Finally, inhibition of ASM by amitriptyline improved drug sensitivity in MM cell lines and primary MM cells. In summary, this study is the first to analyze differences in plasma lipid composition of MM patients and match the observed differences to an upregulation of ASM. Moreover, we demonstrate that amitriptyline is able to inhibit ASM and increase sensitivity to anti-myeloma drugs. This study, therefore, provides a rational to include ASM-targeting-drugs in combination strategies in myeloma patients.
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Affiliation(s)
- Sylvia Faict
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Inge Oudaert
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Ludovic D’Auria
- Neurochemistry Unit, Institute of Neuroscience, Université Catholique de Louvain, B-1200 Brussels, Belgium;
| | - Jonas Dehairs
- Laboratory of Lipid Metabolism and Cancer, Department of Oncology, LKI-Leuven Cancer Institute, KU Leuven, B-3000 Leuven, Belgium; (J.D.); (J.V.S.)
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
- Department of Clinical Hematology, Universitair Ziekenhuis Gent, B-9000 Ghent, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Karel Fostier
- Department of Clinical Hematology, Onze-Lieve-Vrouwziekenhuis Aalst, B-9300 Aalst, Belgium;
| | - Isabelle Vande Broek
- Department of Clinical Hematology, Algemeen Ziekenhuis Nikolaas, B-9100 Sint-Niklaas, Belgium;
| | - Rik Schots
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
| | - Johannes V. Swinnen
- Laboratory of Lipid Metabolism and Cancer, Department of Oncology, LKI-Leuven Cancer Institute, KU Leuven, B-3000 Leuven, Belgium; (J.D.); (J.V.S.)
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, UZ Brussel, B-1090 Brussels, Belgium; (S.F.); (I.O.); (K.M.); (P.V.); (K.D.V.); (E.D.B.); (R.S.); (K.V.)
- Correspondence:
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21
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Vlummens P, De Veirman K, Menu E, De Bruyne E, Offner F, Vanderkerken K, Maes K. The Use of Murine Models for Studying Mechanistic Insights of Genomic Instability in Multiple Myeloma. Front Genet 2019; 10:740. [PMID: 31475039 PMCID: PMC6704229 DOI: 10.3389/fgene.2019.00740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 07/15/2019] [Indexed: 12/12/2022] Open
Abstract
Multiple myeloma (MM) is a B-cell malignancy characterized by the accumulation of clonal plasma cells in the bone marrow. In normal plasma cell development, cells undergo programmed DNA breaks and translocations, a process necessary for generation of a wide repertoire of antigen-specific antibodies. This process also makes them vulnerable for the acquisition of chromosomal defects. Well-known examples of these aberrations, already seen at time of MM diagnosis, are hyperdiploidy or the translocations involving the immunoglobulin heavy chain. Over the recent years, however, novel aspects concerning genomic instability and its role in tumor development, disease progression and nascence of refractory disease were identified. As such, genomic instability is becoming a very relevant research topic with the potential identification of novel disease pathways. In this review, we aim to describe recent studies involving murine MM models focusing on the deregulation of processes implicated in genomic instability and their clinical impact. More specifically, we will discuss chromosomal instability, DNA damage and repair responses, development of drug resistance, and recent insights into the study of clonal hierarchy using different murine MM models. Lastly, we will discuss the importance and the use of murine MM models in the pre-clinical evaluation of promising novel therapeutic agents.
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Affiliation(s)
- Philip Vlummens
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.,Department of Clinical Hematology, Ghent University Hospital, Gent, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Fritz Offner
- Department of Clinical Hematology, Ghent University Hospital, Gent, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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22
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de Boussac H, Bruyer A, Jourdan M, Maes A, Robert N, Gourzones C, Vincent L, Seckinger A, Cartron G, Hose D, De Bruyne E, Kassambara A, Pasero P, Moreaux J. Kinome expression profiling to target new therapeutic avenues in multiple myeloma. Haematologica 2019; 105:784-795. [PMID: 31289205 PMCID: PMC7049359 DOI: 10.3324/haematol.2018.208306] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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: 10/05/2018] [Accepted: 07/05/2019] [Indexed: 12/14/2022] Open
Abstract
Multiple myeloma (MM) account for approximately 10% of hematological malignancies and is the second most common hematological disorder. Kinases inhibitors are widely used and their efficiency for the treatment of cancers has been demonstrated. Here, in order to identify kinases of potential therapeutic interest for the treatment of MM, we investigated the prognostic impact of the kinome expression profile in large cohorts of patients. We identified 36 kinome-related genes significantly linked with a prognostic value to MM, and built a kinome index based on their expression. The Kinome Index (KI) is linked to prognosis, proliferation, differentiation, and relapse in MM. We then tested inhibitors targeting seven of the identified protein kinas-es (PBK, SRPK1, CDC7-DBF4, MELK, CHK1, PLK4, MPS1/TTK) in human myeloma cell lines. All tested inhibitors significantly reduced the viability of myeloma cell lines, and we confirmed the potential clinical interest of three of them on primary myeloma cells from patients. In addition, we demonstrated their ability to potentialize the toxicity of conventional treatments, including Melphalan and Lenalidomide. This highlights their potential beneficial effect in myeloma therapy. Three kinases inhibitors (CHK1i, MELKi and PBKi) overcome resistance to Lenalidomide, while CHK1, PBK and DBF4 inhibitors re-sensitize Melphalan resistant cell line to this conventional therapeutic agent. Altogether, we demonstrate that kinase inhibitors could be of therapeutic interest especially in high-risk myeloma patients defined by the KI. CHEK1, MELK, PLK4, SRPK1, CDC7-DBF4, MPS1/TTK and PBK inhibitors could represent new treatment options either alone or in combination with Melphalan or IMiD for refractory/relapsing myeloma patients.
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Affiliation(s)
| | | | - Michel Jourdan
- IGH, CNRS, Université de Montpellier, Montpellier, France
| | - Anke Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nicolas Robert
- CHU Montpellier, Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, Montpellier, France
| | | | - Laure Vincent
- CHU Montpellier, Department of Clinical Hematology, Montpellier, France
| | - Anja Seckinger
- Medizinische Klinik und Poliklinik V, Universitätsklinikum Heidelberg, Heidelberg, Germany.,Nationales Centrum für Tumorerkrankungen, Heidelberg , Germany
| | - Guillaume Cartron
- CHU Montpellier, Department of Clinical Hematology, Montpellier, France.,Université de Montpellier, UMR CNRS 5235, Montpellier, France.,Université de Montpellier, UFR de Médecine, Montpellier, France
| | - Dirk Hose
- Medizinische Klinik und Poliklinik V, Universitätsklinikum Heidelberg, Heidelberg, Germany.,Nationales Centrum für Tumorerkrankungen, Heidelberg , Germany
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | | | | | - Jérôme Moreaux
- IGH, CNRS, Université de Montpellier, Montpellier, France .,CHU Montpellier, Laboratory for Monitoring Innovative Therapies, Department of Biological Hematology, Montpellier, France.,Université de Montpellier, UFR de Médecine, Montpellier, France
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23
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Maes A, Maes K, De Raeve H, De Smedt E, Vlummens P, Szablewski V, Devin J, Faict S, De Veirman K, Menu E, Offner F, Spaargaren M, Moreaux J, Vanderkerken K, Van Valckenborgh E, De Bruyne E. The anaphase-promoting complex/cyclosome: a new promising target in diffuse large B-cell lymphoma and mantle cell lymphoma. Br J Cancer 2019; 120:1137-1146. [PMID: 31089208 PMCID: PMC6738099 DOI: 10.1038/s41416-019-0471-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 09/07/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 01/03/2023] Open
Abstract
Background The aggressive B-cell non-Hodgkin lymphomas diffuse large B-cell lymphoma (DLBCL) and mantle cell lymphoma (MCL) are characterised by a high proliferation rate. The anaphase-promoting complex/cyclosome (APC/C) and its co-activators Cdc20 and Cdh1 represent an important checkpoint in mitosis. Here, the role of the APC/C and its co-activators is examined in DLBCL and MCL. Methods The expression and prognostic value of Cdc20 and Cdh1 was investigated using GEP data and immunohistochemistry. Moreover, the therapeutic potential of APC/C targeting was evaluated using the small-molecule inhibitor proTAME and the underlying mechanisms of action were investigated by western blot. Results We demonstrated that Cdc20 is highly expressed in DLBCL and aggressive MCL, correlating with a poor prognosis in DLBCL. ProTAME induced a prolonged metaphase, resulting in accumulation of the APC/C-Cdc20 substrate cyclin B1, inactivation/degradation of Bcl-2 and Bcl-xL and caspase-dependent apoptosis. In addition, proTAME strongly enhanced the anti-lymphoma effect of the clinically relevant agents doxorubicin and venetoclax. Conclusion We identified for the first time APC/C as a new, promising target in DLBCL and MCL. Moreover, we provide evidence that Cdc20 might be a novel, independent prognostic factor in DLBCL and MCL.
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Affiliation(s)
- Anke Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hendrik De Raeve
- Department of Pathology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eva De Smedt
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.,Hematology, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Julie Devin
- Laboratory for Monitoring Innovative Therapies, Institute of Human Genetics, CNRS, Montpellier, France
| | - Sylvia Faict
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Fritz Offner
- Hematology, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Marcel Spaargaren
- Department of Pathology, Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Jérôme Moreaux
- Laboratory for Monitoring Innovative Therapies, Institute of Human Genetics, CNRS, Montpellier, France
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.
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24
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De Smedt E, Lui H, Maes K, De Veirman K, Menu E, Vanderkerken K, De Bruyne E. The Epigenome in Multiple Myeloma: Impact on Tumor Cell Plasticity and Drug Response. Front Oncol 2018; 8:566. [PMID: 30619733 PMCID: PMC6297718 DOI: 10.3389/fonc.2018.00566] [Citation(s) in RCA: 30] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 11/13/2018] [Indexed: 01/19/2023] Open
Abstract
Multiple myeloma (MM) is a clonal plasma cell malignancy that develops primarily in the bone marrow (BM), where reciprocal interactions with the BM niche foster MM cell survival, growth, and drug resistance. MM cells furthermore reshape the BM to their own needs by affecting the different BM stromal cell types resulting in angiogenesis, bone destruction, and immune suppression. Despite recent advances in treatment modalities, MM remains most often incurable due to the development of drug resistance to all standard of care agents. This underscores the unmet need for these heavily treated relapsed/refractory patients. Disruptions in epigenetic regulation are a well-known hallmark of cancer cells, contributing to both cancer onset and progression. In MM, sequencing and gene expression profiling studies have also identified numerous epigenetic defects, including locus-specific DNA hypermethylation of cancer-related and B cell specific genes, genome-wide DNA hypomethylation and genetic defects, copy number variations and/or abnormal expression patterns of various chromatin modifying enzymes. Importantly, these so-called epimutations contribute to genomic instability, disease progression, and a worse outcome. Moreover, the frequency of mutations observed in genes encoding for histone methyltransferases and DNA methylation modifiers increases following treatment, indicating a role in the emergence of drug resistance. In support of this, accumulating evidence also suggest a role for the epigenetic machinery in MM cell plasticity, driving the differentiation of the malignant cells to a less mature and drug resistant state. This review discusses the current state of knowledge on the role of epigenetics in MM, with a focus on deregulated histone methylation modifiers and the impact on MM cell plasticity and drug resistance. We also provide insight into the potential of epigenetic modulating agents to enhance clinical drug responses and avoid disease relapse.
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Affiliation(s)
- Eva De Smedt
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hui Lui
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - Ken Maes
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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25
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De Veirman K, Menu E, Maes K, De Beule N, De Smedt E, Maes A, Vlummens P, Fostier K, Kassambara A, Moreaux J, Van Ginderachter JA, De Bruyne E, Vanderkerken K, Van Valckenborgh E. Myeloid-derived suppressor cells induce multiple myeloma cell survival by activating the AMPK pathway. Cancer Lett 2018; 442:233-241. [PMID: 30419344 DOI: 10.1016/j.canlet.2018.11.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: 07/16/2018] [Revised: 09/17/2018] [Accepted: 11/03/2018] [Indexed: 01/07/2023]
Abstract
Multiple Myeloma (MM) is an incurable malignancy of terminally differentiated plasma cells, which are predominantly localized in the bone marrow. Myeloid-derived suppressor cells (MDSC) are described to promote MM progression by immunosuppression and induction of angiogenesis. However, their direct role in drug resistance and tumor survival is still unknown. In this study, we performed co-culture experiments of myeloma cells with 5TMM derived MDSC in vitro, leading to increased survival and proliferation of MM cells. Co-culture experiments resulted in MDSC-induced AMPK phosphorylation in MM cells, which was associated with an increase in the anti-apoptotic factors MCL-1 and BCL-2, and the autophagy-marker LC3II. In addition, 5TMM cells inoculated in mice showed a clear upregulation of AMPK phosphorylation in vivo. Targeting the AMPK pathway by Compound C resulted in apoptosis of human myeloma cell lines, primary MM cells and 5TMM cells. Importantly, we observed that the tumor-promoting effect of MDSC was partially mediated by AMPK activation. In conclusion, our data clearly demonstrate that MDSC directly increase the survival of MM cells, partially through AMPK activation, identifying this pathway as a new target in the treatment of MM patients.
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Affiliation(s)
- Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium.
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Nathan De Beule
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Eva De Smedt
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Anke Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Karel Fostier
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Alboukadel Kassambara
- Department of Biological Hematology, CHU Montpellier, Montpellier, France; IGH, CNRS, Univ Montpellier, France
| | - Jérôme Moreaux
- Department of Biological Hematology, CHU Montpellier, Montpellier, France; IGH, CNRS, Univ Montpellier, France; University of Montpellier, UFR de Médecine, Montpellier, France
| | - Jo A Van Ginderachter
- Laboratory of Myeloid Cell Immunology, VIB Inflammation Research Center, 9000, Ghent, Belgium; Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
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26
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Faict S, Muller J, De Veirman K, De Bruyne E, Maes K, Vrancken L, Heusschen R, De Raeve H, Schots R, Vanderkerken K, Caers J, Menu E. Exosomes play a role in multiple myeloma bone disease and tumor development by targeting osteoclasts and osteoblasts. Blood Cancer J 2018; 8:105. [PMID: 30409995 PMCID: PMC6224554 DOI: 10.1038/s41408-018-0139-7] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/24/2018] [Accepted: 10/09/2018] [Indexed: 01/05/2023] Open
Abstract
Progression of multiple myeloma (MM) is largely dependent on the bone marrow (BM) microenvironment wherein communication through different factors including extracellular vesicles takes place. This cross-talk not only leads to drug resistance but also to the development of osteolysis. Targeting vesicle secretion could therefore simultaneously ameliorate drug response and bone disease. In this paper, we examined the effects of MM exosomes on different aspects of osteolysis using the 5TGM1 murine model. We found that 5TGM1 sEVs, or ‘exosomes’, not only enhanced osteoclast activity, they also blocked osteoblast differentiation and functionality in vitro. Mechanistically, we could demonstrate that transfer of DKK-1 led to a reduction in Runx2, Osterix, and Collagen 1A1 in osteoblasts. In vivo, we uncovered that 5TGM1 exosomes could induce osteolysis in a similar pattern as the MM cells themselves. Blocking exosome secretion using the sphingomyelinase inhibitor GW4869 not only increased cortical bone volume, but also it sensitized the myeloma cells to bortezomib, leading to a strong anti-tumor response when GW4869 and bortezomib were combined. Altogether, our results indicate an important role for exosomes in the BM microenvironment and suggest a novel therapeutic target for anti-myeloma therapy.
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Affiliation(s)
- Sylvia Faict
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Joséphine Muller
- Laboratory of Hematology, GIGA-Research, University of Liège, Liège, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Louise Vrancken
- Laboratory of Hematology, GIGA-Research, University of Liège, Liège, Belgium.,Division of Hematology, Department of Medicine, University and CHU of Liège, Liège, Belgium
| | - Roy Heusschen
- Laboratory of Hematology, GIGA-Research, University of Liège, Liège, Belgium
| | - Hendrik De Raeve
- Department of Pathology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Rik Schots
- Department of Clinical Haematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jo Caers
- Laboratory of Hematology, GIGA-Research, University of Liège, Liège, Belgium.,Division of Hematology, Department of Medicine, University and CHU of Liège, Liège, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.
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27
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Maes K, Boeckx B, Vlummens P, De Veirman K, Menu E, Vanderkerken K, Lambrechts D, De Bruyne E. The genetic landscape of 5T models for multiple myeloma. Sci Rep 2018; 8:15030. [PMID: 30301958 PMCID: PMC6177465 DOI: 10.1038/s41598-018-33396-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/25/2018] [Indexed: 12/24/2022] Open
Abstract
Murine models for multiple myeloma (MM) are often used to investigate pathobiology of multiple myeloma and disease progression. Unlike transgenic mice models, where it is known which oncogene is driving MM disease, the somatic aberrations of spontaneous syngeneic 5T models of MM have not yet been reported. Here, we analyzed the copy-number alterations (CNA) and mutational landscape of 5T2, 5T33vv and 5TGM1 murine MM models using whole-genome and whole-exome sequencing. Forty four percent of the genome of 5T2 cells is affected by CNAs while this was only 11% and 17% for 5T33vv and 5TGM1 cells, respectively. We found that up to 69% of the genes linked to gain of 1q or deletion of 13q in MM patients are present as respectively gains in 5T2 cells or deletions in 5T33 and 5TGM1 cells. Exome sequencing furthermore revealed mutations of genes involved in RAS/MAPK, PI3K/AKT1 and JAK/STAT signaling, DNA damage response, cell cycle, epigenetic regulation and extracellular matrix organization. We observed a statistically significant overlap of genes mutated in the 5T models and MM patients. Overall, the genetic landscape of the 5T models is heterogeneous with a high number of aberrations involving genes in various multiple myeloma-related pathways.
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Affiliation(s)
- Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium.
| | - Bram Boeckx
- Laboratory for Translational Genetics, Department of Human Genetics, Katholieke Universiteit Leuven, VIB Center for Cancer Biology, Leuven, 3000, Belgium
| | - Philip Vlummens
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium
- Department of Clinical Hematology, Ghent University Hospital, Gent, 9000, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium
| | - Diether Lambrechts
- Laboratory for Translational Genetics, Department of Human Genetics, Katholieke Universiteit Leuven, VIB Center for Cancer Biology, Leuven, 3000, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, 1090, Belgium
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28
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De Beck L, Melhaoui S, De Veirman K, Menu E, De Bruyne E, Vanderkerken K, Breckpot K, Maes K. Epigenetic treatment of multiple myeloma mediates tumor intrinsic and extrinsic immunomodulatory effects. Oncoimmunology 2018; 7:e1484981. [PMID: 30288346 PMCID: PMC6169579 DOI: 10.1080/2162402x.2018.1484981] [Citation(s) in RCA: 17] [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: 04/27/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 12/26/2022] Open
Abstract
Immune evasion is an important driver of disease progression in the plasma cell malignancy multiple myeloma. Recent work highlights the potential of epigenetic modulating agents as tool to enhance anti-tumor immunity. The immune modulating effects of the combination of a DNA methyltransferase inhibitor and a histone deacetylase inhibitor in multiple myeloma is insufficiently characterized. Therefore, we used the murine immunocompetent 5T33MM model to investigate hallmarks of immunogenic cell death as well as alterations in the immune cell constitution in the bone marrow of diseased mice in response to the DNA methyltransferase inhibitor decitabine and the histone deacetylase inhibitor quisinostat. Vaccination of mice with 5T33 cells treated with epigenetic compounds delayed tumor development upon a subsequent tumor challenge. In vitro, epigenetic treatment induced ecto-calreticulin and CD47, as well as a type I interferon response. Moreover, treated 5T33vt cells triggered dendritic cell maturation. The combination of decitabine and quisinostat in vivo resulted in combinatory anti-myeloma effects. In vivo, epigenetic treatment increased tumoral ecto-calreticulin and decreased CD47 and PD-L1 expression, increased dendritic cell maturation and reduced CD11b positive cells. Moreover, epigenetic treatment induced a temporal increase in presence of CD8-positive and CD4-positive T cells with naive and memory-like phenotypes based on CD62L and CD44 expression levels, and reduced expression of exhaustion markers PD-1 and TIM3. In conclusion, a combination of a DNA methyltransferase inhibitor and a histone deacetylase inhibitor increased the immunogenicity of myeloma cells and altered the immune cell constitution in the bone marrow of myeloma-bearing mice.
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Affiliation(s)
- Lien De Beck
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium.,Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sarah Melhaoui
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussel, Belgium
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Faict ST, Veirman KD, Maes K, Bruyne ED, Heusschen R, Caers J, Vanderkerken K, Schots R, Menu E. Abstract 2120: Inhibition of multiple myeloma exosomes prevents bone loss and reduces tumor growth. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-2120] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Multiple myeloma, one of the most common hematological malignancies, will often manifest osteolytic lesions during disease development, throughout the whole body. MM is still considered an incurable malignancy, with a supportive micro-environment in the bone marrow. Extracellular vesicles such as exosomes are known to play an important tumor-promoting role in this micro-environment, by inducing angiogenesis and immune suppression. The aim of our study was to examine the effects of MM exosomes on osteolysis in vitro and in vivo, and to determine whether inhibition of exosome secretion can lead to a delay in tumor growth and prevent bone loss. We used the 5TGM1 model which is a syngeneic murine MM model, presenting typical MM characteristics such as osteolysis, angiogenesis and a serum M-spike. We examined the effects of conditioned medium from these MM cells and MM-derived exosomes on cell viability and proliferation of the MC3T3 pre-osteoblast cell line and on their ability to produce alkaline phosphatase (ALP). We saw a decrease in viability and ALP activity when adding exosomes or conditioned medium of the 5TGM1 myeloma cells to the osteoblasts. Moreover, RT-PCR analysis showed a decrease of various osteogenic differentiation genes when osteoblasts were exposed to 5TGM1 exosomes, demonstrating a diminished capacity of osteoblastic differentiation. We next added the exosome secretion inhibitor GW4869 to the 5TGM1 cells, thereby reducing the number of exosomes in the conditioned medium. This was confirmed through western blot of the typical exosome markers. The negative effects of the 5TGM1 conditioned medium on osteoblasts could be overturned by reducing the exosome content therein. In vivo, we injected 5TGM1 exosomes intravenously in healthy mice for three weeks and examined the effects on osteolysis by microCT and TRAP staining. We saw an increase in osteolysis, comparable to the typical osteolytic lesions in tumor-bearing mice. Furthermore, when inhibiting the exosome secretion in vivo in 5TGM1 mice, we observed a significant reduction in tumor load. Through this study we can conclude that exosomes from multiple myeloma cells can induce osteolytic lesions by inhibiting osteoblast proliferation and differentiation. These effects can be reversed by inhibiting the secretion of exosomes.
Citation Format: Sylvia T. Faict, Kim De Veirman, Ken Maes, Elke De Bruyne, Roy Heusschen, Jo Caers, Karin Vanderkerken, Rik Schots, Eline Menu. Inhibition of multiple myeloma exosomes prevents bone loss and reduces tumor growth [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 2120.
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Affiliation(s)
| | | | - Ken Maes
- 1Vrije Universiteit Brussel, Brussels, Belgium
| | | | | | - Jo Caers
- 2Université de Liège, Liège, Belgium
| | | | - Rik Schots
- 1Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- 1Vrije Universiteit Brussel, Brussels, Belgium
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30
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De Beule N, Menu E, Bertrand MJM, Favreau M, De Bruyne E, Maes K, De Veirman K, Radwanska M, Samali A, Magez S, Vanderkerken K, De Trez C. Correction: Experimental African trypanosome infection suppresses the development of multiple myeloma in mice by inducing intrinsic apoptosis of malignant plasma cells. Oncotarget 2018; 9:22871. [PMID: 29854322 PMCID: PMC5978272 DOI: 10.18632/oncotarget.25336] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Nathan De Beule
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Mathieu J M Bertrand
- Inflammation Research Center, VIB, Zwijnaarde-Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Zwijnaarde-Ghent, Belgium
| | - Mérédis Favreau
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.,Department of Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Ghent, Belgium.,Department of Internal Medicine, Ghent University, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Magdalena Radwanska
- Department of Biomedical Molecular Biology, Ghent University, Zwijnaarde-Ghent, Belgium.,Department of Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Ghent, Belgium
| | - Afshin Samali
- Apoptosis Research Centre, NUI Galway, Ireland.,School of Natural Sciences, NUI Galway, Ireland
| | - Stefan Magez
- Ghent University Global Campus, Yeonsu-Gu, Incheon, South Korea.,Department of Structural Biology Research Center (SBRC), Research Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel (VUB), Flanders Institute for Biotechnology (VIB), Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Carl De Trez
- Department of Structural Biology Research Center (SBRC), Research Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel (VUB), Flanders Institute for Biotechnology (VIB), Brussels, Belgium
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El Arfani C, De Veirman K, Maes K, De Bruyne E, Menu E. Metabolic Features of Multiple Myeloma. Int J Mol Sci 2018; 19:E1200. [PMID: 29662010 PMCID: PMC5979361 DOI: 10.3390/ijms19041200] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 03/19/2018] [Revised: 04/07/2018] [Accepted: 04/10/2018] [Indexed: 01/19/2023] Open
Abstract
Cancer is known for its cellular changes contributing to tumour growth and cell proliferation. As part of these changes, metabolic rearrangements are identified in several cancers, including multiple myeloma (MM), which is a condition whereby malignant plasma cells accumulate in the bone marrow (BM). These metabolic changes consist of generation, inhibition and accumulation of metabolites and metabolic shifts in MM cells. Changes in the BM micro-environment could be the reason for such adjustments. Enhancement of glycolysis and glutaminolysis is found in MM cells compared to healthy cells. Metabolites and enzymes can be upregulated or downregulated and play a crucial role in drug resistance. Therefore, this review will focus on changes in glucose and glutamine metabolism linked with the emergence of drug resistance. Moreover, metabolites do not only affect other metabolic components to benefit cancer development; they also interfere with transcription factors involved in proliferation and apoptotic regulation.
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Affiliation(s)
- Chaima El Arfani
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium.
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium.
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium.
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium.
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium.
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32
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Wang J, Faict S, Maes K, De Bruyne E, Van Valckenborgh E, Schots R, Vanderkerken K, Menu E. Extracellular vesicle cross-talk in the bone marrow microenvironment: implications in multiple myeloma. Oncotarget 2018; 7:38927-38945. [PMID: 26950273 PMCID: PMC5122441 DOI: 10.18632/oncotarget.7792] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [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: 12/21/2015] [Accepted: 02/21/2016] [Indexed: 12/13/2022] Open
Abstract
The bone marrow (BM) represents a complex microenvironment containing stromal cells, immune cells, osteoclasts, osteoblasts, and hematopoietic cells, which are crucial for the immune response, bone formation, and hematopoiesis. Apart from soluble factors and direct cell-cell contact, extracellular vesicles (EVs), including exosomes, were recently identified as a third mediator for cell communication. Solid evidence has already demonstrated the involvement of various BM-derived cells and soluble factors in the regulation of multiple biological processes whereas the EV-mediated message delivery system from the BM has just been explored in recent decades. These EVs not only perform physiological functions but can also play a role in cancer development, including in Multiple Myeloma (MM) which is a plasma cell malignancy predominantly localized in the BM. This review will therefore focus on the multiple functions of EVs derived from BM cells, the manipulation of the BM by cancer-derived EVs, and the role of BM EVs in MM progression.
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Affiliation(s)
- Jinheng Wang
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Sylvia Faict
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Rik Schots
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
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33
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Bieghs L, Johnsen HE, Maes K, Menu E, Van Valckenborgh E, Overgaard MT, Nyegaard M, Conover CA, Vanderkerken K, De Bruyne E. The insulin-like growth factor system in multiple myeloma: diagnostic and therapeutic potential. Oncotarget 2018; 7:48732-48752. [PMID: 27129151 PMCID: PMC5217049 DOI: 10.18632/oncotarget.8982] [Citation(s) in RCA: 30] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/16/2016] [Indexed: 12/14/2022] Open
Abstract
Multiple myeloma (MM) is a highly heterogeneous plasma cell malignancy. The MM cells reside in the bone marrow (BM), where reciprocal interactions with the BM niche foster MM cell survival, proliferation, and drug resistance. As in most cancers, the insulin-like growth factor (IGF) system has been demonstrated to play a key role in the pathogenesis of MM. The IGF system consists of IGF ligands, IGF receptors, IGF binding proteins (IGFBPs), and IGFBP proteases and contributes not only to the survival, proliferation, and homing of MM cells, but also MM-associated angiogenesis and osteolysis. Furthermore, increased IGF-I receptor (IGF-IR) expression on MM cells correlates with a poor prognosis in MM patients. Despite the prominent role of the IGF system in MM, strategies targeting the IGF-IR using blocking antibodies or small molecule inhibitors have failed to translate into the clinic. However, increasing preclinical evidence indicates that IGF-I is also involved in the development of drug resistance against current standard-of-care agents against MM, including proteasome inhibitors, immunomodulatory agents, and corticoids. IGF-IR targeting has been able to overcome or revert this drug resistance in animal models, enhancing the efficacy of standard-of-care agents. This finding has generated renewed interest in the therapeutic potential of IGF-I targeting in MM. The present review provides an update of the impact of the different IGF system components in MM and discusses the diagnostic and therapeutic potentials.
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Affiliation(s)
- Liesbeth Bieghs
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium.,Department of Hematology, Aalborg Hospital, Aalborg University, Denmark.,Department of Biomedicin, Aarhus University, Aarhus, Denmark
| | - Hans E Johnsen
- Department of Hematology, Aalborg Hospital, Aalborg University, Denmark.,Clinical Cancer Research Center, Aalborg University Hospital, Denmark.,Department of Clinical Medicine, Aalborg University, Denmark
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Mette Nyegaard
- Department of Biomedicin, Aarhus University, Aarhus, Denmark
| | - Cheryl A Conover
- Division of Endocrinology, Metabolism and Nutrition, Endocrine Research Unit, Mayo Clinic, Rochester, NY, USA
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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34
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De Smedt E, Maes K, Verhulst S, Lui H, Kassambara A, Maes A, Robert N, Heirman C, Cakana A, Hose D, Breckpot K, van Grunsven LA, De Veirman K, Menu E, Vanderkerken K, Moreaux J, De Bruyne E. Loss of RASSF4 Expression in Multiple Myeloma Promotes RAS-Driven Malignant Progression. Cancer Res 2017; 78:1155-1168. [DOI: 10.1158/0008-5472.can-17-1544] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 11/15/2017] [Accepted: 12/12/2017] [Indexed: 11/16/2022]
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35
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De Veirman K, De Beule N, Maes K, Menu E, De Bruyne E, De Raeve H, Fostier K, Moreaux J, Kassambara A, Hose D, Heusschen R, Eriksson H, Vanderkerken K, Van Valckenborgh E. Extracellular S100A9 Protein in Bone Marrow Supports Multiple Myeloma Survival by Stimulating Angiogenesis and Cytokine Secretion. Cancer Immunol Res 2017; 5:839-846. [PMID: 28903971 DOI: 10.1158/2326-6066.cir-17-0192] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 07/12/2017] [Accepted: 08/30/2017] [Indexed: 11/16/2022]
Abstract
Dysregulated expression of S100 protein family members is associated with cancer proliferation, invasion, angiogenesis, and inflammation. S100A9 induces myeloid-derived suppressor cell (MDSC) accumulation and activity. MDSCs, immunosuppressive cells that contribute to tumor immune escape, are the main producers of S100A9. In this study, we evaluated the role of extracellular S100A9 and the therapeutic relevance of S100A9 inhibition in multiple myeloma (MM), using the immunocompetent murine 5T33MM model. We demonstrated the presence of S100A9 and its receptor TLR4 in both monocytic and granulocytic MDSCs in human and mouse samples. We showed that S100A9 acted as a chemoattractant for MM cells and induced MDSCs to express and secrete inflammatory and pro-myeloma cytokines, including TNFα, IL6, and IL10. Blocking S100A9 interactions in vivo with the small molecule ABR-238901 did not directly affect MDSC accumulation but did reduce IL6 and IL10 cytokine expression by MDSC. ABR-238901 treatment in vivo reduced angiogenesis but had only minor effects on tumor load as single agent (6% reduction). However, ABR-238901 treatment in combination with bortezomib resulted in an increased reduction in tumor load compared with single treatments (50% relative reduction compared with bortezomib alone). Our data suggest that extracellular S100A9 promotes MM and that inhibition of S100A9 may have therapeutic benefit. Cancer Immunol Res; 5(10); 839-46. ©2017 AACR.
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Affiliation(s)
- Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Nathan De Beule
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Hendrik De Raeve
- Department of Pathology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karel Fostier
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
| | - Jérôme Moreaux
- Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France.,University of Montpellier, UFR de Médecine, Montpellier, France
| | - Alboukadel Kassambara
- Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France
| | - Dirk Hose
- Medizinische Klinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Roy Heusschen
- Laboratory of Hematology, GIGA-Research, University of Liège, Liège, Belgium
| | | | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium.
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Belgium
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Favreau M, Venken K, Faict S, Maes K, De Veirman K, De Bruyne E, Leleu X, Boon L, Elewaut D, Vanderkerken K, Menu E. Both mucosal-associated invariant and natural killer T-cell deficiency in multiple myeloma can be countered by PD-1 inhibition. Haematologica 2017; 102:e266-e270. [PMID: 28385777 DOI: 10.3324/haematol.2017.163758] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Mérédis Favreau
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium.,Department of Rheumatology, Ghent University Hospital, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Belgium
| | - Koen Venken
- Department of Rheumatology, Ghent University Hospital, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Belgium
| | - Sylvia Faict
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
| | - Xavier Leleu
- Service d'Hématologie et Thérapie Cellulaire, Pôle Régional de Cancérologie, Hopital de la Miléterie, 86021 Poitiers, France
| | | | - Dirk Elewaut
- Department of Rheumatology, Ghent University Hospital, Belgium.,Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Belgium
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De Beule N, De Veirman K, Maes K, De Bruyne E, Menu E, Breckpot K, De Raeve H, Van Rampelbergh R, Van Ginderachter JA, Schots R, Van Valckenborgh E, Vanderkerken K. Tumour-associated macrophage-mediated survival of myeloma cells through STAT3 activation. J Pathol 2017; 241:534-546. [PMID: 27976373 DOI: 10.1002/path.4860] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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: 08/31/2016] [Revised: 10/04/2016] [Accepted: 11/24/2016] [Indexed: 12/26/2022]
Abstract
Overcoming drug resistance is one of the greatest challenges in the treatment of multiple myeloma (MM). The interaction of myeloma cells with the bone marrow (BM) microenvironment is a major factor contributing to drug resistance. Tumour-associated macrophages (TAMs) with different polarization states constitute an important component of this microenvironment. Previous studies have revealed a role of TAMs in MM cell survival and drug resistance; however, the impact of macrophage polarization (anti-tumoural 'M1' versus pro-tumoural 'M2'-like phenotype) in this process has not yet been described. Here, the presence of TAMs was confirmed in BM sections from MM patients, both at diagnosis and relapse, with two M2 markers, CD163 and CD206. By following different TAM subpopulations during disease progression in the syngeneic murine 5T33MM model, we demonstrated a decrease in the number of inflammatory monocytes and an increase in the number of M2-oriented TAMs in BM. Co-culture experiments demonstrated that macrophages provide a survival benefit to myeloma cells that is maintained after treatment with several classes of anti-myeloma agent (melphalan and bortezomib); the greatest effect was observed with M2-polarized macrophages. The pro-survival effect was associated with activation of the STAT3 pathway in 5T33MM cells, less cleavage of caspase-3, and thus less apoptosis. AZD1480, an ATP-competitive JAK2 inhibitor, abrogated the observed TAM-mediated MM cell survival, and partially inhibited resistance to bortezomib. Despite having only a small quantitative impact on myeloid cells in vivo, AZD1480 treatment alone and in combination with bortezomib significantly reduced tumour load. In conclusion, M2 TAMs are present in the MM microenvironment, and contribute to MM cell survival and protection from drug-induced apoptosis. As a result of TAM-induced activation of the STAT3 pathway, 5T33MM cells are sensitized to AZD1480 treatment. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Nathan De Beule
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Technology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hendrik De Raeve
- Department of Pathology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | | | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Laboratory, VIB Inflammation Research Centre, Ghent, Belgium
| | - Rik Schots
- Department of Clinical Haematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Laboratory of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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38
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Lub S, Maes A, Maes K, De Veirman K, De Bruyne E, Menu E, Fostier K, Kassambara A, Moreaux J, Hose D, Leleu X, King RW, Vanderkerken K, Van Valckenborgh E. Inhibiting the anaphase promoting complex/cyclosome induces a metaphase arrest and cell death in multiple myeloma cells. Oncotarget 2016; 7:4062-76. [PMID: 26716651 PMCID: PMC4826190 DOI: 10.18632/oncotarget.6768] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 07/28/2015] [Accepted: 11/26/2015] [Indexed: 01/11/2023] Open
Abstract
The anaphase promoting complex/cyclosome (APC/C) is an ubiquitin ligase involved in cell cycle. During the metaphase-anaphase transition the APC/C is activated by Cdc20. The aim of this study is to elucidate the importance and therapeutic potential of APC/C and its co-activator Cdc20 in multiple myeloma (MM). Gene expression analysis revealed that Cdc20 was expressed at higher levels in gene expression-based high-risk MM patients. Moreover, high Cdc20 expression correlated with poor prognosis. Treatment of human myeloma cell lines with proTAME, an APC/C inhibitor, resulted in an accumulation of APC/CCdc20 substrate cyclin B1 and an accumulation of cells in metaphase. Moreover we observed a significant dose-dependent decrease in viability and increase in apoptosis in MM cells upon proTAME treatment. The induction of apoptosis was accompanied with caspase 3, 8, 9 and PARP cleavage. A similar metaphase arrest and induction of apoptosis were obtained with specific knockdown of Cdc20. In addition, we demonstrated the accumulation of Bim was partially responsible for the observed cell death. Combining proTAME with another APC/C inhibitor apcin or the alkylating agent melphalan resulted in enhanced anti-MM activity. This study suggests that the APC/C and its co-activator Cdc20 could be a new and promising target especially in high-risk MM patients.
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Affiliation(s)
- Susanne Lub
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Anke Maes
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karel Fostier
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Alboukadel Kassambara
- Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France
| | - Jérôme Moreaux
- Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France.,University of Montpellier 1, UFR de Médecine, Montpellier, France
| | - Dirk Hose
- Medizinische Klinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Xavier Leleu
- Service des maladies du sang, Hôpital Huriez, CHRU, Lille, France
| | - Randall W King
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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Wang J, De Veirman K, De Beule N, Maes K, De Bruyne E, Van Valckenborgh E, Vanderkerken K, Menu E. The bone marrow microenvironment enhances multiple myeloma progression by exosome-mediated activation of myeloid-derived suppressor cells. Oncotarget 2016; 6:43992-4004. [PMID: 26556857 PMCID: PMC4791281 DOI: 10.18632/oncotarget.6083] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [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: 07/17/2015] [Accepted: 10/23/2015] [Indexed: 12/29/2022] Open
Abstract
Exosomes, extracellular nanovesicles secreted by various cell types, modulate the bone marrow (BM) microenvironment by regulating angiogenesis, cytokine release, immune response, inflammation, and metastasis. Interactions between bone marrow stromal cells (BMSCs) and multiple myeloma (MM) cells play crucial roles in MM development. We previously reported that BMSC-derived exosomes directly promote MM cell growth, whereas the other possible mechanisms for supporting MM progression by these exosomes are still not clear. Here, we investigated the effect of BMSC-derived exosomes on the MM BM cells with specific emphasis on myeloid-derived suppressor cells (MDSCs). BMSC-derived exosomes were able to be taken up by MM MDSCs and induced their expansion in vitro. Moreover, these exosomes directly induced the survival of MDSCs through activating STAT3 and STAT1 pathways and increasing the anti-apoptotic proteins Bcl-xL and Mcl-1. Inhibition of these pathways blocked the enhancement of MDSC survival. Furthermore, these exosomes increased the nitric oxide release from MM MDSCs and enhanced their suppressive activity on T cells. Taken together, our results demonstrate that BMSC-derived exosomes activate MDSCs in the BM through STAT3 and STAT1 pathways, leading to increased immunosuppression which favors MM progression.
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Affiliation(s)
- Jinheng Wang
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Nathan De Beule
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussels (VUB), Brussels, Belgium
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40
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Bieghs L, Brohus M, Kristensen IB, Abildgaard N, Bøgsted M, Johnsen HE, Conover CA, De Bruyne E, Vanderkerken K, Overgaard MT, Nyegaard M. Abnormal IGF-Binding Protein Profile in the Bone Marrow of Multiple Myeloma Patients. PLoS One 2016; 11:e0154256. [PMID: 27111220 PMCID: PMC4844248 DOI: 10.1371/journal.pone.0154256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 12/07/2015] [Accepted: 04/11/2016] [Indexed: 01/02/2023] Open
Abstract
Insulin-like growth factor (IGF) signalling plays a key role in homing, progression, and treatment resistance in multiple myeloma (MM). In the extracellular environment, the majority of IGF molecules are bound to one of six IGF-binding proteins (IGFBP1-6), leaving a minor fraction of total IGF free and accessible for receptor activation. In MM, high IGF-receptor type 1 expression levels correlate with a poor prognosis, but the status and role of IGF and IGFBPs in the pathobiology of MM is unknown. Here we measured total IGF1, IGF2, and intact IGFBP levels in blood and bone marrow samples from MM (n = 17), monoclonal gammopathy of undetermined significance (MGUS) (n = 37), and control individuals (n = 15), using ELISA (IGFs) and 125I-IGF1 Western Ligand Blotting (IGFBPs). MGUS and MM patients displayed a significant increase in intact IGFBP-2 (2.5-3.8 fold) and decrease in intact IGFBP-3 (0.6-0.5 fold) in the circulation compared to control individuals. Further, IGFBP-2 as well as total IGFBP levels were significantly lower in bone marrow compared to circulation in MM and MGUS only, whereas IGF1, IGF2, and IGFBP-3 were equally distributed between the two compartments. In conclusion, the profound change in IGFBP profile strongly suggests an increased IGF bioavailability in the bone marrow microenvironment in MGUS and MM, despite no change in growth factor concentration.
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Affiliation(s)
- Liesbeth Bieghs
- Department of Hematology, Aalborg Hospital, Aalborg University, Alborg, Denmark
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Malene Brohus
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Ida B. Kristensen
- Department of Haematology, Odense University Hospital, Odense, Denmark
| | - Niels Abildgaard
- Department of Haematology, Odense University Hospital, Odense, Denmark
| | - Martin Bøgsted
- Department of Hematology, Aalborg Hospital, Aalborg University, Alborg, Denmark
| | - Hans E. Johnsen
- Department of Hematology, Aalborg Hospital, Aalborg University, Alborg, Denmark
| | - Cheryl A. Conover
- Division of Endocrinology, Metabolism and Nutrition, Endocrine Research Unit, Mayo Clinic, Rochester, MN, United States of America
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Mette Nyegaard
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
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41
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Maes K, De Smedt E, Kassambara A, Hose D, Seckinger A, Van Valckenborgh E, Menu E, Klein B, Vanderkerken K, Moreaux J, De Bruyne E. In vivo treatment with epigenetic modulating agents induces transcriptional alterations associated with prognosis and immunomodulation in multiple myeloma. Oncotarget 2016; 6:3319-34. [PMID: 25669970 PMCID: PMC4413656 DOI: 10.18632/oncotarget.3207] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 10/13/2014] [Accepted: 12/17/2014] [Indexed: 12/11/2022] Open
Abstract
Histone deacetylase inhibitors (HDACi) and DNA methyltransferase inhibitors (DNMTi) are in early clinical development for multiple myeloma (MM) therapy. Despite all encouraging pre-clinical data, clinical activity of HDACi and DNMTi is mostly lacking. To optimize the trials, characterization of the in vivo response towards HDACi and DNMTi will be crucial. Therefore, we investigated the transcriptional response after in vivo treatment with the HDACi quisinostat or DNMTi decitabine using the murine 5T33MM model. We identified 504 and 154 genes deregulated by quisinostat and decitabine, respectively. Of interest, MM patients' gene expression levels of 62 quisinostat- and 25 decitabine-deregulated genes were predictive for overall survival of patients. This prognostic information was implemented in a DNA methylation and histone acetylation score. A high score was related to a high proliferative and immature phenotype of MM cells. Furthermore, highly scored MM patients had an adverse overall survival. Interestingly, bio-informatic prediction tools revealed an association of quisinostat-deregulated genes with lymphocyte activation, proliferation, immune-effector mechanisms and T-helper-1 development. Overall, treatment of 5T33MM mice with epigenetic modulating agents led to the translation of gene signatures to predict overall survival of MM patients. HDACi mainly deregulated tumoral immunomodulatory pathways, supporting the rationale to combine HDACi with immunomodulatory therapies.
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Affiliation(s)
- Ken Maes
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eva De Smedt
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Alboukadel Kassambara
- Department of Biological Haematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France
| | - Dirk Hose
- Medizinische Klinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Anja Seckinger
- Medizinische Klinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Bernard Klein
- Department of Biological Haematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France.,University of Montpellier 1, UFR de Médecine, Montpellier, France
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jérôme Moreaux
- Department of Biological Haematology, CHU Montpellier, Montpellier, France.,Institute of Human Genetics, CNRS-UPR1142, Montpellier, France.,University of Montpellier 1, UFR de Médecine, Montpellier, France
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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42
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De Veirman K, Van Ginderachter JA, Lub S, De Beule N, Thielemans K, Bautmans I, Oyajobi BO, De Bruyne E, Menu E, Lemaire M, Van Riet I, Vanderkerken K, Van Valckenborgh E. Multiple myeloma induces Mcl-1 expression and survival of myeloid-derived suppressor cells. Oncotarget 2016; 6:10532-47. [PMID: 25871384 PMCID: PMC4496373 DOI: 10.18632/oncotarget.3300] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [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: 01/26/2015] [Accepted: 02/08/2015] [Indexed: 01/02/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are contributing to an immunosuppressive environment by their ability to inhibit T cell activity and thereby promoting cancer progression. An important feature of the incurable plasma cell malignancy Multiple Myeloma (MM) is immune dysfunction. MDSC were previously identified to be present and active in MM patients, however little is known about the MDSC-inducing and -activating capacity of MM cells. In this study we investigated the effects of the tumor microenvironment on MDSC survival. During MM progression in the 5TMM mouse model, accumulation of MDSC in the bone marrow was observed in early stages of disease development, while circulating myeloid cells were increased at later stages of disease. Interestingly, in vivo MDSC targeting by anti-GR1 antibodies and 5-Fluorouracil resulted in a significant reduced tumor load in 5TMM-diseased mice. In vitro generation of MDSC was demonstrated by increased T cell immunosuppressive capacity and MDSC survival was observed in the presence of MM-conditioned medium. Finally, increased Mcl-1 expression was identified as underlying mechanism for MDSC survival. In conclusion, our data demonstrate that soluble factors from MM cells are able to generate MDSC through Mcl-1 upregulation and this cell population can be considered as a possible target in MM disease.
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Affiliation(s)
- Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Laboratory, VIB, Brussels, Belgium
| | - Susanne Lub
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Nathan De Beule
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Kris Thielemans
- Department of Immunology-Physiology, Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ivan Bautmans
- Gerontology & Frailty in Ageing Departments, Vrije Universiteit Brussel, Brussels, Belgium
| | - Babatunde O Oyajobi
- Department of Cellular & Structural Biology and Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, USA
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Miguel Lemaire
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Ivan Van Riet
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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43
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Lub S, Maes K, Menu E, De Bruyne E, Vanderkerken K, Van Valckenborgh E. Novel strategies to target the ubiquitin proteasome system in multiple myeloma. Oncotarget 2016; 7:6521-37. [PMID: 26695547 PMCID: PMC4872730 DOI: 10.18632/oncotarget.6658] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [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: 09/11/2015] [Accepted: 11/23/2015] [Indexed: 12/20/2022] Open
Abstract
Multiple myeloma (MM) is a hematological malignancy characterized by the accumulation of plasma cells in the bone marrow (BM). The success of the proteasome inhibitor bortezomib in the treatment of MM highlights the importance of the ubiquitin proteasome system (UPS) in this particular cancer. Despite the prolonged survival of MM patients, a significant amount of patients relapse or become resistant to therapy. This underlines the importance of the development and investigation of novel targets to improve MM therapy. The UPS plays an important role in different cellular processes by targeted destruction of proteins. The ubiquitination process consists of enzymes that transfer ubiquitin to proteins targeting them for proteasomal degradation. An emerging and promising approach is to target more disease specific components of the UPS to reduce side effects and overcome resistance. In this review, we will focus on different components of the UPS such as the ubiquitin activating enzyme E1, the ubiquitin conjugating enzyme E2, the E3 ubiquitin ligases, the deubiquitinating enzymes (DUBs) and the proteasome. We will discuss their role in MM and the implications in drug discovery for the treatment of MM.
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Affiliation(s)
- Susanne Lub
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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44
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Maes K, De Smedt E, Lemaire M, De Raeve H, Menu E, Van Valckenborgh E, McClue S, Vanderkerken K, De Bruyne E. The role of DNA damage and repair in decitabine-mediated apoptosis in multiple myeloma. Oncotarget 2015; 5:3115-29. [PMID: 24833108 PMCID: PMC4102796 DOI: 10.18632/oncotarget.1821] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
DNA methyltransferase inhibitors (DNMTi) and histone deacetylase inhibitors (HDACi) are under investigation for the treatment of cancer, including the plasma cell malignancy multiple myeloma (MM). Evidence exists that DNA damage and repair contribute to the cytotoxicity mediated by the DNMTi decitabine. Here, we investigated the DNA damage response (DDR) induced by decitabine in MM using 4 human MM cell lines and the murine 5T33MM model. In addition, we explored how the HDACi JNJ-26481585 affects this DDR. Decitabine induced DNA damage (gamma-H2AX foci formation), followed by a G0/G1- or G2/M-phase arrest and caspase-mediated apoptosis. JNJ-26481585 enhanced the anti-MM effect of decitabine both in vitro and in vivo. As JNJ-26481585 did not enhance decitabine-mediated gamma-H2AX foci formation, we investigated the DNA repair response towards decitabine and/or JNJ-26481585. Decitabine augmented RAD51 foci formation (marker for homologous recombination (HR)) and/or 53BP1 foci formation (marker for non-homologous end joining (NHEJ)). Interestingly, JNJ-26481585 negatively affected basal or decitabine-induced RAD51 foci formation. Finally, B02 (RAD51 inhibitor) enhanced decitabine-mediated apoptosis. Together, we report that decitabine-induced DNA damage stimulates HR and/or NHEJ. JNJ-26481585 negatively affects RAD51 foci formation, thereby providing an additional explanation for the combinatory effect between decitabine and JNJ-26481585.
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Affiliation(s)
- Ken Maes
- Department of Hematology and Immunology-Myeloma Center Brussels, Vrije Universiteit Brussel, Brussels, Belgium
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45
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De Veirman K, Van Valckenborgh E, Lahmar Q, Geeraerts X, De Bruyne E, Menu E, Van Riet I, Vanderkerken K, Van Ginderachter JA. Myeloid-derived suppressor cells as therapeutic target in hematological malignancies. Front Oncol 2014; 4:349. [PMID: 25538893 PMCID: PMC4258607 DOI: 10.3389/fonc.2014.00349] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [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: 09/18/2014] [Accepted: 11/23/2014] [Indexed: 12/29/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of immature myeloid cells that accumulate during pathological conditions such as cancer and are associated with a poor clinical outcome. MDSC expansion hampers the host anti-tumor immune response by inhibition of T cell proliferation, cytokine secretion, and recruitment of regulatory T cells. In addition, MDSC exert non-immunological functions including the promotion of angiogenesis, tumor invasion, and metastasis. Recent years, MDSC are considered as a potential target in solid tumors and hematological malignancies to enhance the effects of currently used immune modulating agents. This review focuses on the characteristics, distribution, functions, cell–cell interactions, and targeting of MDSC in hematological malignancies including multiple myeloma, lymphoma, and leukemia.
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Affiliation(s)
- Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Qods Lahmar
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
| | - Xenia Geeraerts
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Ivan Van Riet
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
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46
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Bieghs L, Lub S, Fostier K, Maes K, Van Valckenborgh E, Menu E, Johnsen HE, Overgaard MT, Larsson O, Axelson M, Nyegaard M, Schots R, Jernberg-Wiklund H, Vanderkerken K, De Bruyne E. The IGF-1 receptor inhibitor picropodophyllin potentiates the anti-myeloma activity of a BH3-mimetic. Oncotarget 2014; 5:11193-208. [PMID: 25008202 PMCID: PMC4294345 DOI: 10.18632/oncotarget.1933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 02/26/2014] [Accepted: 04/30/2014] [Indexed: 12/22/2022] Open
Abstract
The ABT-analogous 737, 263 and 199 are BH3 mimetics showing potent anti-myeloma (MM) activity, but only on defined molecular subgroups of MM patients presenting a Bcl-2high/Mcl-1low profile. IGF-1 is a major survival factor in MM regulating the expression of Bcl-2 proteins and might therefore be a resistance factor to these ABT-analogous. We first show that IGF-1 protected human MM cell lines (HMCLs) against ABT-737. Concurrently, the IGF-1 receptor inhibitor picropodophyllin (PPP) synergistically sensitized HMCL, primary human MM and murine 5T33MM cells to ABT-737 and ABT-199 by further decreasing cell viability and enhancing apoptosis. Knockdown of Bcl-2 by shRNA protected MM cells to ABT-737, while Mcl-1 shRNA sensitized the cells. PPP overcame the Bcl-2 dependency of ABT-737, but failed to completely overcome the protective effect of Mcl-1. In vivo, co-treatment of 5T33MM bearing mice significantly decreased tumor burden and prolonged overall survival both in a prophylactic and therapeutic setting. Interestingly, proteasome inhibitor resistant CD138- 5T33MM cells were more sensitive to ABT-737, whereas PPP alone targeted the CD138+ cells more effectively. After co-treatment, both subpopulations were targeted equally. Together, the combination of an IGF-1R inhibitor and an ABT-analogue displays synergistic anti-myeloma activity providing the rational for further (pre)clinical testing.
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Affiliation(s)
- Liesbeth Bieghs
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Haematology, Aalborg Hospital, Aalborg University, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Susanne Lub
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karel Fostier
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ken Maes
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hans E. Johnsen
- Department of Haematology, Aalborg Hospital, Aalborg University, Denmark
| | | | - Olle Larsson
- Department of Oncology and Pathology, Cancer Center Karolinska, Karolinska Institute, Stockholm, Sweden
| | - Magnus Axelson
- Department of Clinical Chemistry, Karolinska Hospital, Stockholm, Sweden
| | - Mette Nyegaard
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Rik Schots
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Karin Vanderkerken
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology-Myeloma Center Brussel, Vrije Universiteit Brussel, Brussels, Belgium
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47
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Nur H, Rao L, Frassanito MA, De Raeve H, Ribatti D, Mfopou JK, Van Valckenborgh E, De Bruyne E, Vacca A, Vanderkerken K, Menu E. Stimulation of invariant natural killer T cells by α-Galactosylceramide activates the JAK-STAT pathway in endothelial cells and reduces angiogenesis in the 5T33 multiple myeloma model. Br J Haematol 2014; 167:651-63. [PMID: 25142285 DOI: 10.1111/bjh.13092] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 06/06/2014] [Accepted: 07/09/2014] [Indexed: 12/16/2022]
Abstract
Tumour pathogenesis in multiple myeloma (MM) correlates with a high vascular index. Therefore, targeting angiogenesis is an important therapeutic tool to reduce MM progression. This study aimed to investigate the role of invariant natural killer T (iNKT) cells in angiogenesis and the mechanisms behind the stimulation by α-Galactosylceramide (α-GalCer). We have previously found that α-GalCer could increase the survival of 5T33MM mice and here we demonstrate that α-GalCer reduces the microvessel density. We performed both in vivo and in vitro angiogenic assays to confirm this observation. We found that conditioned medium of α-GalCer stimulated iNKT cells reduced neovascularization in the chick chorioallantoic membrane and in matrigel plug assays. Moreover, we observed a reduction in proliferation, migration and network formation and an induction of apoptosis upon exposure of murine endothelial cell lines to this conditioned medium. We furthermore observed that the JAK-STAT signaling pathway was highly activated in endothelial cells in response to stimulated iNKT cells, indicating the possible role of IFN-γ in the anti-angiogenic process. In conclusion, these results highlight the possibility of recruiting iNKT cells to target MM and angiogenesis. This gives a rationale for combining immunotherapy with conventional anti-tumour treatments in view of increasing their therapeutic potential.
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Affiliation(s)
- Haneen Nur
- Department of Haematology and Immunology, Myeloma Centre Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium; Department of Biology, Faculty of Science and Technology, Hebron University, Hebron, Palestine
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48
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De Veirman K, Rao L, De Bruyne E, Menu E, Van Valckenborgh E, Van Riet I, Frassanito MA, Di Marzo L, Vacca A, Vanderkerken K. Cancer associated fibroblasts and tumor growth: focus on multiple myeloma. Cancers (Basel) 2014; 6:1363-81. [PMID: 24978438 PMCID: PMC4190545 DOI: 10.3390/cancers6031363] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [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: 01/28/2014] [Revised: 03/17/2014] [Accepted: 06/04/2014] [Indexed: 12/18/2022] Open
Abstract
Cancer associated fibroblasts (CAFs) comprise a heterogeneous population that resides within the tumor microenvironment. They actively participate in tumor growth and metastasis by production of cytokines and chemokines, and the release of pro-inflammatory and pro-angiogenic factors, creating a more supportive microenvironment. The aim of the current review is to summarize the origin and characteristics of CAFs, and to describe the role of CAFs in tumor progression and metastasis. Furthermore, we focus on the presence of CAFs in hypoxic conditions in relation to multiple myeloma disease.
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Affiliation(s)
- Kim De Veirman
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Luigia Rao
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Ivan Van Riet
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
| | - Maria Antonia Frassanito
- Department of Biomedical Sciences and Human Oncology, Section of General Pathology, University of Bari Medical School, Bari I-70124, Italy.
| | - Lucia Di Marzo
- Department of Biomedical Sciences and Human Oncology, Section of Internal Medicine, University of Bari Medical School, Bari I-70124, Italy.
| | - Angelo Vacca
- Department of Biomedical Sciences and Human Oncology, Section of Internal Medicine, University of Bari Medical School, Bari I-70124, Italy.
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
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49
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Hu J, Van Valckenborgh E, Xu D, Menu E, De Raeve H, De Bruyne E, De Bryune E, Xu S, Van Camp B, Handisides D, Hart CP, Vanderkerken K. Synergistic induction of apoptosis in multiple myeloma cells by bortezomib and hypoxia-activated prodrug TH-302, in vivo and in vitro. Mol Cancer Ther 2013; 12:1763-73. [PMID: 23832122 DOI: 10.1158/1535-7163.mct-13-0123] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [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
Recently, we showed that hypoxia is a critical microenvironmental factor in multiple myeloma, and that the hypoxia-activated prodrug TH-302 selectively targets hypoxic multiple myeloma cells and improves multiple disease parameters in vivo. To explore approaches for sensitizing multiple myeloma cells to TH-302, we evaluated in this study the antitumor effect of TH-302 in combination with the clinically used proteasome inhibitor bortezomib. First, we show that TH-302 and bortezomib synergistically induce apoptosis in multiple myeloma cell lines in vitro. Second, we confirm that this synergism is related to the activation of caspase cascades and is mediated by changes of Bcl-2 family proteins. The combination treatment induces enhanced cleavage of caspase-3/8/9 and PARP, and therefore triggers apoptosis and enhances the cleavage of proapoptotic BH3-only protein BAD and BID as well as the antiapoptotic protein Mcl-1. In particular, TH-302 can abrogate the accumulation of antiapoptotic Mcl-1 induced by bortezomib, and decreases the expression of the prosurvival proteins Bcl-2 and Bcl-xL. Furthermore, we found that the induction of the proapoptotic BH3-only proteins PUMA (p53-upregulated modulator of apoptosis) and NOXA is associated with this synergism. In response to the genotoxic and endoplasmic reticulum stresses by TH-302 and bortezomib, the expression of PUMA and NOXA were upregulated in p53-dependent and -independent manners. Finally, in the murine 5T33MMvv model, we showed that the combination of TH-302 and bortezomib can improve multiple disease parameters and significantly prolong the survival of diseased mice. In conclusion, our studies provide a rationale for clinical evaluation of the combination of TH-302 and bortezomib in patients with multiple myeloma.
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Affiliation(s)
- Jinsong Hu
- Corresponding Author: Karin Vanderkerken, Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium.
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50
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Nur H, Fostier K, Aspeslagh S, Renmans W, Bertrand E, Leleu X, Favreau M, Breckpot K, Schots R, De Waele M, Van Valckenborgh E, De Bruyne E, Facon T, Elewaut D, Vanderkerken K, Menu E. Preclinical evaluation of invariant natural killer T cells in the 5T33 multiple myeloma model. PLoS One 2013; 8:e65075. [PMID: 23741460 PMCID: PMC3669090 DOI: 10.1371/journal.pone.0065075] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [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: 11/14/2012] [Accepted: 04/21/2013] [Indexed: 11/27/2022] Open
Abstract
Immunomodulators have been used in recent years to reactivate host anti-tumor immunity in several hematological malignancies. This report describes the effect of activating natural killer T (NKT) cells by α-Galactosylceramide (α-GalCer) in the 5T33MM model of multiple myeloma (MM). NKT cells are T lymphocytes, co-expressing T and NK receptors, while invariant NKT cells (iNKTs) also express a unique semi-invariant TCR α-chain. We followed iNKT numbers during the development of the disease in both 5T33MM mice and MM patients and found that their numbers dropped dramatically at the end stage of the disease, leading to a loss of total IFN-γ secretion. We furthermore observed that α-GalCer treatment significantly increased the survival of 5T33MM diseased mice. Taken together, our data demonstrate for the first time the possibility of using a preclinical murine MM model to study the effects of α-GalCer and show promising results of α-GalCer treatment in a low tumor burden setting.
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Affiliation(s)
- Haneen Nur
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Department of Biology, Faculty of Science and Technology, Hebron University, Hebron, Palestine
| | - Karel Fostier
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Sandrine Aspeslagh
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University, Ghent, Belgium
| | - Wim Renmans
- Department of Laboratory Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | | | - Xavier Leleu
- Service des maladies du sang, Hôpital Huriez, CHRU, Lille, France
| | - Mérédis Favreau
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University, Ghent, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Rik Schots
- Department of Clinical Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Marc De Waele
- Department of Laboratory Hematology, Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - Els Van Valckenborgh
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Elke De Bruyne
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Thierry Facon
- Service des maladies du sang, Hôpital Huriez, CHRU, Lille, France
| | - Dirk Elewaut
- Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University, Ghent, Belgium
| | - Karin Vanderkerken
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Eline Menu
- Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- * E-mail:
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