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Myeloma bone disease: from biology findings to treatment approaches. Blood 2019; 133:1534-1539. [PMID: 30760454 DOI: 10.1182/blood-2018-11-852459] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/10/2019] [Indexed: 12/16/2022] Open
Abstract
Bone disease is a cardinal complication of multiple myeloma that affects quality of life and survival. Osteocytes have emerged as key players in the development of myeloma-related bone disease. Along with other factors, they participate in increased osteoclast activity, decreased osteoblast function, and immunosuppressed marrow microenvironment, which deregulate bone turnover and result in bone loss and skeletal-related events. Denosumab is a novel alternative to bisphosphonates against myeloma bone disease. Special considerations in this constantly evolving field are thoroughly discussed.
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52
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The RANK-RANKL axis: an opportunity for drug repurposing in cancer? Clin Transl Oncol 2019; 21:977-991. [PMID: 30656607 DOI: 10.1007/s12094-018-02023-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
Abstract
Drug repurposing offers advantages over traditional drug development in terms of cost, speed and improved patient outcomes. The receptor activator of nuclear factor kappa B (RANK) ligand (RANKL) inhibitor denosumab is approved for the prevention of skeletal-related events in patients with advanced malignancies involving bone, including solid tumours and multiple myeloma. Following improved understanding of the role of RANK/RANKL in cancer biology, denosumab has already been repurposed as a treatment for giant cell tumour of bone. Here, we review the role of RANK/RANKL in tumourigenesis, including effects on tumour initiation, progression and metastasis and consider the impact of RANK/RANKL on tumour immunology and immune evasion. Finally, we look briefly at ongoing trials and future opportunities for therapeutic synergy when combining denosumab with anti-cancer agents such as immune checkpoint inhibitors.
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53
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Kim C, Bhatta S, Cyprien L, Fonseca R, Hernandez RK. Incidence of skeletal-related events among multiple myeloma patients in the United States at oncology clinics: Observations from real-world data. J Bone Oncol 2018; 14:100215. [PMID: 30666288 PMCID: PMC6329702 DOI: 10.1016/j.jbo.2018.100215] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/19/2018] [Accepted: 12/24/2018] [Indexed: 12/27/2022] Open
Abstract
Skeletal-related events (SREs) are common bone complications in multiple myeloma (MM). However, there are few real-world reports of their incidence. In this study, a database of oncology electronic health records was linked to administrative claims data. Patients identified were aged ≥18 years and newly diagnosed with MM, had ≥1 clinic visit within 1 month of diagnosis, and ≥1 year of follow-up after diagnosis. The study period was January 1, 2011 to December 31, 2016. 343 patients were included, 35% of whom had a baseline history of any SRE. During a median follow-up of 25.7 months, 34% of patients experienced SREs after diagnosis. Median time to SRE was 167 days. Among patients experiencing an SRE, 68% had an SRE within the first year. The incidence rate of SREs at 1 year following MM diagnosis for patients with baseline history was 103/100 person-years (PY) versus 16/100PY for patients without baseline history. SRE incidence rates within 3 months of initiating a line of therapy increased with subsequent lines (line 1: 81/100PY, line 2: 118/100PY, line 3: 150/100PY). Risk of SREs was similar across different anti-MM regimens, including proteasome inhibitor-based regimens. These results highlight the importance of continued surveillance and management of MM-associated bone disease.
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Affiliation(s)
- Christopher Kim
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - Sumita Bhatta
- Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | | | - Rafael Fonseca
- Mayo Clinic, 5777 East Mayo Boulevard, Phoenix, AZ 85064, USA
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54
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Abramson HN. Monoclonal Antibodies for the Treatment of Multiple Myeloma: An Update. Int J Mol Sci 2018; 19:E3924. [PMID: 30544512 PMCID: PMC6321340 DOI: 10.3390/ijms19123924] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/22/2018] [Accepted: 12/05/2018] [Indexed: 12/14/2022] Open
Abstract
The past two decades have seen a revolution in multiple myeloma (MM) therapy with the introduction of several small molecules, mostly orally effective, whose mechanisms are based on proteasome inhibition, histone deacetylase (HDAC) blockade, and immunomodulation. Immunotherapeutic approaches to MM treatment using monoclonal antibodies (mAbs), while long in development, began to reap success with the identification of CD38 and SLAMF7 as suitable targets for development, culminating in the 2015 Food and Drug Administration (FDA) approval of daratumumab and elotuzumab, respectively. This review highlights additional mAbs now in the developmental pipeline. Isatuximab, another anti-CD38 mAb, currently is under study in four phase III trials and may offer certain advantages over daratumumab. Several antibody-drug conjugates (ADCs) in the early stages of development are described, including JNJ-63723283, which has attained FDA breakthrough status for MM. Other mAbs described in this review include denosumab, recently approved for myeloma-associated bone loss, and checkpoint inhibitors, although the future status of the latter combined with immunomodulators has been clouded by unacceptably high death rates that caused the FDA to issue clinical holds on several of these trials. Also highlighted are the therapies based on the B Cell Maturation Antigen (BCMA), another very promising target for anti-myeloma development.
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Affiliation(s)
- Hanley N Abramson
- Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI 48202, USA.
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55
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Root Resorption Classifications: A Narrative Review and a Clinical Aid Proposal for Routine Assessment. Eur Endod J 2018; 3:134-145. [PMID: 32161869 PMCID: PMC7006572 DOI: 10.14744/eej.2018.33043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/14/2018] [Accepted: 10/07/2018] [Indexed: 01/12/2023] Open
Abstract
Root resorption (RR) refers to noninfectious damage related to the loss of hard and soft dental tissue that results from clastic cell activity. It is observed as a pathologic process that is predominantly asymptomatic in the permanent dentition and physiological during the shedding of primary teeth. Roots are protected by unmineralized organic cementoid and predentine. RR occurs because of the inability of the clastic cells to adhere to unmineralized surfaces. Since the first RR classification was described by Andreasen in the 1970s, several classifications have been proposed with diverse terminology. A narrative literature review was undertaken on the current classification, diagnosis, pathophysiology, and treatment of RR. A bibliographic search resulted in 434 titles and abstracts, and from those, 17 articles were obtained that alluded to 15 RR classifications. A total of 28 articles that met the inclusion criteria were included. Results showed that Andreasen’s classification is the most widely used for classifying RR. In terms of epidemiologic data, studies are scarce, although RR pathophysiology is well described in the literature. Overall clinical guidelines are summarized in a new RR classification diagram. The choice of RR treatment application should be in line with the RR type and the dentist’s experience. However, an earlier and correct diagnosis will significantly improve final outcomes and long-term prognosis, especially with the current evolution of advanced imaging techniques, such as cone-beam computed tomography and bioceramic-based endodontic sealers.
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56
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Ahern E, Smyth MJ, Dougall WC, Teng MWL. Roles of the RANKL–RANK axis in antitumour immunity — implications for therapy. Nat Rev Clin Oncol 2018; 15:676-693. [DOI: 10.1038/s41571-018-0095-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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57
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Tai YT, Cho SF, Anderson KC. Osteoclast Immunosuppressive Effects in Multiple Myeloma: Role of Programmed Cell Death Ligand 1. Front Immunol 2018; 9:1822. [PMID: 30147691 PMCID: PMC6095980 DOI: 10.3389/fimmu.2018.01822] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 07/24/2018] [Indexed: 12/21/2022] Open
Abstract
Immunomodulatory drugs and monoclonal antibody-based immunotherapies have significantly improved the prognosis of the patients with multiple myeloma (MM) in the recent years. These new classes of reagents target malignant plasma cells (PCs) and further modulate the immune microenvironment, which prolongs anti-MM responses and may prevent tumor occurrence. Since MM remains an incurable cancer for most patients, there continues to be a need to identify new tumor target molecules and investigate alternative cellular approaches using gene therapeutic strategies and novel treatment mechanisms. Osteoclasts (OCs), as critical multi-nucleated large cells responsible for bone destruction in >80% MM patients, have become an attractive cellular target for the development of novel MM immunotherapies. In MM, OCs are induced and activated by malignant PCs in a reciprocal manner, leading to osteolytic bone disease commonly associated with this malignancy. Significantly, bidirectional interactions between OCs and MM cells create a positive feedback loop to promote MM cell progression, increase angiogenesis, and inhibit immune surveillance via both cell-cell contact and abnormal production of multiple cytokines/chemokines. Most recently, hyper-activated OCs have been associated with activation of programmed cell death protein 1 (PD-1)/programmed cell death ligand 1 (PD-L1) pathway, which impairs T cell proliferation and cytotoxicity against MM cells. Importantly, therapeutic anti-CD38 monoclonal antibodies and checkpoint inhibitors can alleviate OC-induced immune suppression. Furthermore, a proliferation-inducing ligand, abundantly secreted by OCs and OC precursors, significantly upregulates PD-L1 expression on MM cells, in addition to directly promoting MM cell proliferation and survival. Coupled with increased PD-L1 expression in other immune-suppressive cells, i.e., myeloid-derived suppressor cells and tumor-associated macrophages, these results strongly suggest that OCs contribute to the immunosuppressive MM BM microenvironment. Based on these findings and ongoing osteoimmunology studies, therapeutic interventions targeting OC number and function are under development to diminish both MM bone disease and related immune suppression. In this review, we discuss the classical and novel roles of OCs in the patho-immunology of MM. We also describe novel therapeutic strategies simultaneously targeting OCs and MM interactions, including PD-1/PD-L1 axis, to overcome the immune-suppressive microenvironment and improve patient outcome.
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Affiliation(s)
- Yu-Tzu Tai
- LeBow Institute for Myeloma Therapeutics and Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Shih-Feng Cho
- LeBow Institute for Myeloma Therapeutics and Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States.,Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kenneth C Anderson
- LeBow Institute for Myeloma Therapeutics and Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
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58
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Raje NS, Bhatta S, Terpos E. Role of the RANK/RANKL Pathway in Multiple Myeloma. Clin Cancer Res 2018; 25:12-20. [PMID: 30093448 DOI: 10.1158/1078-0432.ccr-18-1537] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/05/2018] [Accepted: 08/06/2018] [Indexed: 11/16/2022]
Abstract
Receptor activator of nuclear factor-kappa B (RANK) and its ligand, RANKL, are expressed in a variety of tissues throughout the body; their primary role is in the regulation of bone remodeling and development of the immune system. Consistent with these functions, evidence exists for a role of RANK/RANKL in all stages of tumorigenesis, from cell proliferation and carcinogenesis to epithelial-mesenchymal transition to neoangiogenesis and intravasation to metastasis to bone resorption and tumor growth in bone. Results from current studies also point to a role of RANK/RANKL signaling in patients with multiple myeloma, who have increased serum levels of soluble RANKL and an imbalance in RANKL and osteoprotegerin. Current therapies for patients with multiple myeloma demonstrate that RANKL may be released by tumor cells or osteoprogenitor cells. This article will review currently available evidence supporting a role for RANK/RANKL signaling in tumorigenesis, with a focus on patients with multiple myeloma.
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Affiliation(s)
- Noopur S Raje
- Massachusetts General Hospital, Boston, Massachusetts.
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59
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Kim C, Hernandez RK, Cyprien L, Liede A, Cheng PC. Patterns of bisphosphonate treatment among patients with multiple myeloma treated at oncology clinics across the USA: observations from real-world data. Support Care Cancer 2018; 26:2833-2841. [PMID: 29516168 PMCID: PMC6018581 DOI: 10.1007/s00520-018-4133-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 02/25/2018] [Indexed: 01/30/2023]
Abstract
PURPOSE Current guidelines recommend that intravenous bisphosphonates be initiated in all patients with multiple myeloma for management of bone disease. The objective of this study was to describe real-world bisphosphonate treatment patterns. METHODS This was a retrospective observational study using oncology electronic health record (EHR) data contained in Amgen's Oncology Services Comprehensive Electronic Records (OSCER) database, generated by Flatiron Health (New York, NY), representing over 1.5 million US oncology patients. Patients were newly diagnosed with multiple myeloma between January 1, 2009 and April 30, 2016. Timing of bisphosphonate administration, frequency, schedule, changes in dosing schedule, and discontinuations were calculated. Bisphosphonate treatment relative to renal function and anti-multiple myeloma therapy regimens were also assessed. RESULTS A total of 11,112 patients were enrolled in the study with a median follow-up of 687 days. Sixty-three percent received ≥ 1 bisphosphonate administration, primarily every 4 weeks (67.7%). Mean time from diagnosis to bisphosphonate administration was 106 days (median, 29). Most patients (58.2%) initiated treatment in first year after diagnosis and about half (51.9%) either discontinued or changed dosing. Patients with poorer renal function by estimated glomerular filtration rate (eGFR) stage at baseline were less likely to receive bisphosphonates (eGFR stage 5 vs 1: 24 vs 72%) and more likely to have delayed initiation of bisphosphonate treatment from diagnosis (eGFR stage 5 vs 1: median 70 vs 25 days). CONCLUSIONS Real-world data from US oncology practices indicate that many patients with multiple myeloma may not receive optimal therapy for bone disease, particularly those with renal impairment.
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Affiliation(s)
- Christopher Kim
- Amgen Inc., 1 Amgen Center Dr, Thousand Oaks, CA, 91320, USA.
| | | | | | | | - Paul C Cheng
- Amgen Inc., 1 Amgen Center Dr, Thousand Oaks, CA, 91320, USA
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60
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Abstract
Multiple myeloma (MM) is the second-most-common hematologic malignancy and the most frequent cancer to involve bone. MM bone disease (MMBD) has devastating consequences for patients, including dramatic bone loss, severe bone pain, and pathological fractures that markedly decrease the quality of life and impact survival of MM patients. MMBD results from excessive osteoclastic bone resorption and persistent suppressed osteoblastic bone formation, causing lytic lesions that do not heal, even when patients are in complete and prolonged remission. This review discusses the cellular and molecular mechanisms that regulate the uncoupling of bone remodeling in MM, the effects of MMBD on tumor growth, and potential therapeutic approaches that may prevent severe bone loss and repair damaged bone in MM patients.
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Affiliation(s)
- Silvia Marino
- Department of Medicine, Division Hematology Oncology, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - G David Roodman
- Department of Medicine, Division Hematology Oncology, Indiana University School of Medicine, Indianapolis, Indiana 46202
- Roudebush VA Medical Center, Indianapolis, Indiana 46202
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61
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Circulating Soluble Receptor Activator of Nuclear Factor Kappa B Ligand and C-C Motif Ligand 3 Correlate With Survival in Patients With Waldenström Macroglobulinemia. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2018; 18:431-437. [DOI: 10.1016/j.clml.2018.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/22/2018] [Accepted: 03/27/2018] [Indexed: 11/22/2022]
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62
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Choi YW, Park JS, Han JH, Kim JH, Ahn MS, Lee HW, Kang SY, Choi JH, Jeong SH. Strong immunoexpression of dickkopf-1 is associated with response to bortezomib in multiple myeloma. Leuk Lymphoma 2018; 59:2670-2678. [PMID: 29582699 DOI: 10.1080/10428194.2018.1443331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The predictive significance of osteolysis-related proteins was evaluated in bortezomib-treated multiple myeloma. The clinicopathological characteristics were collected retrospectively. Immunohistochemistry was performed for analyzing receptor activator of NF-κB ligand (RANKL), osteoprotegerin (OPG), macrophage inflammatory protein 1 alpha (MIP1α), and dickkopf-1 (DKK1) expression. Among clinicopatholgical characteristics, osteolytic lesion was associated with higher response to bortezomib treatment (79% vs. 46%). High DKK1 expression was significantly correlated with osteolytic lesion (p = .003), whereas RANKL, OPG, and MIP1α were not. In high DKK1 expression, higher response to bortezomib was observed (84% vs. 44%). In multivariate analysis, high DKK1 expression was associated with better response to bortezomib (p = .005). Patients with high DKK1 expression had longer median progression-free survival (PFS) and overall survival (OS) after bortezomib treatment. In multivariate analysis, high DKK1 expression was an independent prognostic factor of favorable PFS (p = .027) and OS (p = .035). In multiple myeloma treated with bortezomib, expression status of DKK1 may be a useful predictive marker.
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Affiliation(s)
- Yong Won Choi
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Joon Seong Park
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Jae Ho Han
- b Department of Pathology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Jang-Hee Kim
- b Department of Pathology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Mi Sun Ahn
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Hyun Woo Lee
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Seok Yun Kang
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Jin-Hyuk Choi
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
| | - Seong Hyun Jeong
- a Department of Hematology-Oncology , Ajou University School of Medicine , Suwon , Republic of Korea
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63
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Terpos E, Christoulas D, Gavriatopoulou M. Biology and treatment of myeloma related bone disease. Metabolism 2018; 80:80-90. [PMID: 29175022 DOI: 10.1016/j.metabol.2017.11.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/16/2017] [Accepted: 11/18/2017] [Indexed: 02/08/2023]
Abstract
Myeloma bone disease (MBD) is the most common complication of multiple myeloma (MM), resulting in skeleton-related events (SREs) such as severe bone pain, pathologic fractures, vertebral collapse, hypercalcemia, and spinal cord compression that cause significant morbidity and mortality. It is due to an increased activity of osteoclasts coupled to the suppressed bone formation by osteoblasts. Novel molecules and pathways that are implicated in osteoclast activation and osteoblast inhibition have recently been described, including the receptor activator of nuclear factor-kB ligand/osteoprotegerin pathway, activin-A and the wingless-type signaling inhibitors, dickkopf-1 (DKK-1) and sclerostin. These molecules interfere with tumor growth and survival, providing possible targets for the development of novel drugs for the management of lytic disease in myeloma but also for the treatment of MM itself. Currently, bisphosphonates are the mainstay of the treatment of myeloma bone disease although several novel agents such as denosumab and sotatercept appear promising. This review focuses on recent advances in MBD pathophysiology and treatment, in addition to the established therapeutic guidelines.
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Affiliation(s)
- Evangelos Terpos
- Department of Clinical Therapeutics, University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece.
| | - Dimitrios Christoulas
- Department of Clinical Therapeutics, University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
| | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
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Raje N, Terpos E, Willenbacher W, Shimizu K, García-Sanz R, Durie B, Legieć W, Krejčí M, Laribi K, Zhu L, Cheng P, Warner D, Roodman GD. Denosumab versus zoledronic acid in bone disease treatment of newly diagnosed multiple myeloma: an international, double-blind, double-dummy, randomised, controlled, phase 3 study. Lancet Oncol 2018; 19:370-381. [DOI: 10.1016/s1470-2045(18)30072-x] [Citation(s) in RCA: 236] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/29/2017] [Accepted: 11/29/2017] [Indexed: 12/30/2022]
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65
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Targeting signaling pathways in multiple myeloma: Pathogenesis and implication for treatments. Cancer Lett 2018; 414:214-221. [DOI: 10.1016/j.canlet.2017.11.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 11/14/2017] [Accepted: 11/17/2017] [Indexed: 12/15/2022]
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Singh K, Piprode V, Mhaske ST, Barhanpurkar-Naik A, Wani MR. IL-3 Differentially Regulates Membrane and Soluble RANKL in Osteoblasts through Metalloproteases and the JAK2/STAT5 Pathway and Improves the RANKL/OPG Ratio in Adult Mice. THE JOURNAL OF IMMUNOLOGY 2018; 200:595-606. [DOI: 10.4049/jimmunol.1601528] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Abstract
Bone remodeling comprises balanced activities between osteoclasts and osteoblasts, which is regulated by various factors, including hormones and cytokines. We previously reported that IL-3 inhibits osteoclast differentiation and pathological bone loss. IL-3 also enhances osteoblast differentiation and bone formation from mesenchymal stem cells. However, the role of IL-3 in regulation of osteoblast–osteoclast interactions and underlying mechanisms is not yet delineated. In this study, we investigated the role of IL-3 on the regulation of osteoblast-specific molecules, receptor activator of NF-κB ligand (RANKL), and osteoprotegerin (OPG) that modulate bone homeostasis. We found that IL-3 increases RANKL expression at both the transcriptional and translational levels, and it showed no effect on OPG expression in calvarial osteoblasts. The increased RANKL expression by IL-3 induces mononuclear osteoclasts; however, it does not induce multinuclear osteoclasts. Interestingly, IL-3 decreases soluble RANKL by reducing ectodomain shedding of membrane RANKL through downregulation of metalloproteases mainly a disintegrin and metalloproteinase (ADAM)10, ADAM17, ADAM19, and MMP3. Moreover, IL-3 increases membrane RANKL by activating the JAK2/STAT5 pathway. Furthermore, IL-3 enhances RANKL expression in mesenchymal stem cells of wild-type mice but not in STAT5a knockout mice. Interestingly, IL-3 restores RANKL expression in adult mice by enhancing bone-specific RANKL and decreasing serum RANKL. Furthermore, IL-3 increases the serum OPG level in adult mice. Thus, our results reveal, to our knowledge for the first time, that IL-3 differentially regulates two functional forms of RANKL through metalloproteases and the JAK2/STAT5 pathway, and it helps in restoring the decreased RANKL/OPG ratio in adult mice. Notably, our studies indicate the novel role of IL-3 in regulating bone homeostasis in important skeletal disorders.
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Affiliation(s)
- Kanupriya Singh
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Vikrant Piprode
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Suhas T. Mhaske
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Amruta Barhanpurkar-Naik
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Ganeshkhind, Pune 411007, India
| | - Mohan R. Wani
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Ganeshkhind, Pune 411007, India
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Abstract
The skeleton is the main site affected by metastases and breast cancer is the most frequent tumor to invade bone. The assessment of bone metastases is difficult and biochemical markers of bone formation (BFMs) could be a promising alternative. Although the essential role of osteoblasts in the metastatic process of bone destruction is now well established, little attention has been paid to BFMs. We conducted a Medline search for studies about BFMs in breast cancer. Our review allows us to conclude that BFMs have high specificity but low sensitivity for the diagnosis of bone metastases. The available biochemical markers cannot replace imaging techniques for the diagnosis of bone metastases. Several studies indicate that BFM serum levels reflect total tumor burden in the skeleton. BFM levels are higher in patients with blastic lesions compared to those with lytic lesions. Serial measurements of BFMs could be useful for the clinical assessment of response to antineoplastic treatment or to bisphosphonate therapy. Besides markers of bone resorption, biochemical markers of bone formation are a promising alternative for the assessment of metastatic bone disease, but large prospective studies are needed to address this important issue.
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Affiliation(s)
- M A Palma
- Unit of Endocrinology and Bone Diseases, Department of Internal Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
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Terpos E, Ntanasis-Stathopoulos I, Gavriatopoulou M, Dimopoulos MA. Pathogenesis of bone disease in multiple myeloma: from bench to bedside. Blood Cancer J 2018; 8:7. [PMID: 29330358 PMCID: PMC5802524 DOI: 10.1038/s41408-017-0037-4] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/13/2017] [Accepted: 10/23/2017] [Indexed: 12/29/2022] Open
Abstract
Osteolytic bone disease is the hallmark of multiple myeloma, which deteriorates the quality of life of myeloma patients, and it affects dramatically their morbidity and mortality. The basis of the pathogenesis of myeloma-related bone disease is the uncoupling of the bone-remodeling process. The interaction between myeloma cells and the bone microenvironment ultimately leads to the activation of osteoclasts and suppression of osteoblasts, resulting in bone loss. Several intracellular and intercellular signaling cascades, including RANK/RANKL/OPG, Notch, Wnt, and numerous chemokines and interleukins are implicated in this complex process. During the last years, osteocytes have emerged as key regulators of bone loss in myeloma through direct interactions with the myeloma cells. The myeloma-induced crosstalk among the molecular pathways establishes a positive feedback that sustains myeloma cell survival and continuous bone destruction, even when a plateau phase of the disease has been achieved. Targeted therapies, based on the better knowledge of the biology, constitute a promising approach in the management of myeloma-related bone disease and several novel agents are currently under investigation. Herein, we provide an insight into the underlying pathogenesis of bone disease and discuss possible directions for future studies.
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Affiliation(s)
- Evangelos Terpos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
| | - Ioannis Ntanasis-Stathopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Meletios A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
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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] [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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Abstract
Multiple myeloma (MM) is an incurable hematopoietic cancer that is characterized by malignant plasma cell infiltration of the bone marrow and/or extramedullary sites. Multi-modality approaches including "novel agents," traditional chemotherapy, and/or stem cell transplantation are used in MM therapy. Drug resistance, however, ultimately develops and the disease remains incurable for the vast majority of patients. In this chapter, we review both tumor cell-autonomous and non-autonomous (microenvironment-dependent) mechanisms of drug resistance. MM provides an attractive paradigm highlighting a number of current concepts and challenges in oncology. Firstly, identification of MM cancer stem cells and their unique drug resistance attributes may provide rational avenues towards MM eradication and cure. Secondly, the oligoclonal evolution of MM and alternation of "clonal tides" upon therapy challenge our current understanding of treatment responses. Thirdly, the success of MM "novel agents" provides exemplary evidence for the impact of therapies that target the immune and non-immune microenvironment. Fourthly, the rapid pace of drug approvals for MM creates an impetus for development of precision medicine strategies and biomarkers that promote efficacy and mitigate toxicity and cost. While routine cure of the disease remains the ultimate and yet unattainable prize, MM advances in the last 10-15 years have provided an astounding paradigm for the treatment of blood cancers in the modern era and have radically transformed patient outcomes.
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Affiliation(s)
- Athanasios Papadas
- Division of Hematology and Oncology, Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA.
- UW Carbone Cancer Center, Madison, WI, 53705, USA.
| | - Fotis Asimakopoulos
- Division of Hematology and Oncology, Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- UW Carbone Cancer Center, Madison, WI, 53705, USA
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71
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Mesenchymal stem cells expressing osteoprotegerin variants inhibit osteolysis in a murine model of multiple myeloma. Blood Adv 2017; 1:2375-2385. [PMID: 29296887 DOI: 10.1182/bloodadvances.2017007310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 10/25/2017] [Indexed: 12/26/2022] Open
Abstract
The current treatment options for multiple myeloma (MM) osteolytic lesions are mainly combinations of chemotherapy and other small-molecule inhibitors, but toxic side effects still remain a major concern. Studies have shown that osteoclast activity is enhanced in MM patients through increased expression of receptor activator of nuclear factor κB ligand (RANKL), triggering RANK signaling on osteoclast precursors, which results in aggressive bone resorption. Furthermore, osteoprotegerin (OPG), a decoy receptor for RANKL, and the osteogenic potential of mesenchymal stem cells (MSCs) are significantly decreased in myeloma patients with multiple bone lesions. Thus, the use of OPG as a therapeutic molecule would greatly decrease osteolytic damage and reduce morbidity. However, in addition to inhibiting osteoclast activation, OPG binds to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), thereby rendering the tumor cells resistant to TRAIL-induced apoptosis and limiting the use of OPG for therapy. The present study developed a bone-disseminated myeloma disease model in mouse and successfully tested a cell therapy approach using MSCs, genetically engineered to express OPG variants that retain the capacity to bind RANKL, but do not bind TRAIL. Our results of skeletal remodeling following this regenerative stem cell therapy with OPG variants indicated a significant protection against myeloma-induced osteolytic bone damage in areas of major myeloma skeletal dissemination, suggesting the potential of this therapy for treating osteolytic damage in myeloma patients.
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72
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Utilization of agents to prevent skeletal-related events among patients with multiple myeloma: analysis of real-world data. Support Care Cancer 2017; 26:807-812. [PMID: 29063388 DOI: 10.1007/s00520-017-3892-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE This study examined real-world utilization patterns of bone-targeted agents (BTA) in patients with multiple myeloma (MM). METHODS In this retrospective cohort study, adults with an MM diagnosis recorded in 2012-2014 were identified from electronic health records in the Oncology Services Comprehensive Electronic Records (OSCER) database. Patients received zoledronic acid (ZA) or pamidronate (PA) on/after first MM diagnosis recorded in the study period, had no BTA use in prior 6 months, and were followed through earliest of May 31, 2015 or last clinic visit. Patients with any solid tumor diagnosis were excluded. Time to BTA initiation, compliance (≥ 12 administrations in a year), switching, and non-persistence (switch or ≥ 90-day gap in therapy) were described by agent and follow-up period. RESULTS Among 9,617 patients with MM, 3,735 (38.8%) received a BTA. Most patients (90.9%) received ZA, with first BTA use generally seen within 3 months of first observed MM diagnosis (ZA 76.1%, PA 75.1%). A minority of ZA (27.4%) and PA (23.0%) patients were compliant in Year 1, with lower compliance in Year 2 (19.8% and 15.6%, respectively). The median time to non-persistence was 16.2 (95% confidence interval [CI] 15.4-17.4) months for ZA and 13.8 (95% CI 11.5-15.4) months for PA. Persistence was 86% at 6 months and 34% at 24 months for ZA, and 77% and 30% for PA, respectively. CONCLUSIONS These results highlight the possibility of suboptimal prevention of skeletal-related events due to non-compliant dosing and non-persistence after patients initiate BTA therapy.
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Abstract
PURPOSE OF REVIEW Bone disease is a defining characteristic of multiple myeloma (MM) and the major cause of morbidity. It manifests as lytic lesions or osteopenia and is often associated with severe pain, pathological fracture, spinal cord compression, vertebral collapse, and hypercalcemia. Here, we have reviewed recent data on understanding its biology and treatment. RECENT FINDINGS The imbalance between bone regeneration and bone resorption underlies the pathogenesis of osteolytic bone disease. Increased osteoclast proliferation and activity accompanied by inhibition of bone-forming osteoblasts leads to progressive bone loss and lytic lesions. Although tremendous progress has been made, MM remains an incurable disease. Novel agents targeting bone disease are under investigation with the goal of not only preventing bone loss and improving bone quality but also harnessing MM tumor growth. Current data illustrate that the interactions between MM cells and the tumor-bone microenvironment contribute to the bone disease and continued MM progression. A better understanding of this microenvironment is critical for novel therapeutic treatments of both MM and associated bone disease.
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Affiliation(s)
- Cristina Panaroni
- Center for Multiple Myeloma, Massachusetts General Hospital Cancer Center, Professional Office Building 216, 55 Fruit Street, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Andrew J Yee
- Center for Multiple Myeloma, Massachusetts General Hospital Cancer Center, Professional Office Building 216, 55 Fruit Street, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Noopur S Raje
- Center for Multiple Myeloma, Massachusetts General Hospital Cancer Center, Professional Office Building 216, 55 Fruit Street, Boston, MA, 02114, USA.
- Harvard Medical School, Boston, MA, 02115, USA.
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Terpos E, Christoulas D, Gavriatopoulou M, Dimopoulos MA. Mechanisms of bone destruction in multiple myeloma. Eur J Cancer Care (Engl) 2017; 26. [PMID: 28940410 DOI: 10.1111/ecc.12761] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2017] [Indexed: 02/02/2023]
Abstract
Osteolytic bone disease is a frequent complication of multiple myeloma, resulting in skeletal complications that are a significant cause of morbidity and mortality. It is the result of an increased activity of osteoclasts, which is not followed by reactive bone formation by osteoblasts. Recent studies have revealed novel molecules and pathways that are implicated in osteoclast activation and osteoblast inhibition. Among them, the most important include the receptor activator of nuclear factor-kappa B ligand/osteoprotegerin pathway, the macrophage inflammatory proteins and the activin-A that play a crucial role in osteoclast stimulation in myeloma, while the wingless-type (Wnt) signalling inhibitors (sclerostin and dickkopf-1) along with the growth factor independence-1 are considered the most important factors for the osteoblast dysfunction of myeloma patients. Finally, the role of osteocytes, which is the key cell for normal bone remodelling, has also revealed during the last years through their interaction with myeloma cells that leads to their apoptosis and the release of RANKL and sclerostin maintaining bone loss in these patients. This review focuses on the latest available data for the mechanisms of bone destruction in multiple myeloma.
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Affiliation(s)
- E Terpos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
| | - D Christoulas
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
| | - M Gavriatopoulou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
| | - M A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens School of Medicine, Alexandra General Hospital, Athens, Greece
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75
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Brunetti G, Faienza MF, Colaianni G, Grano M, Colucci S. Mechanisms of Altered Bone Remodeling in Multiple Myeloma. Clin Rev Bone Miner Metab 2017. [DOI: 10.1007/s12018-017-9236-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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76
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Herlihy SE, Lin C, Nefedova Y. Bone marrow myeloid cells in regulation of multiple myeloma progression. Cancer Immunol Immunother 2017; 66:1007-1014. [PMID: 28378067 PMCID: PMC11029144 DOI: 10.1007/s00262-017-1992-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/22/2017] [Indexed: 12/25/2022]
Abstract
Survival, growth, and response to chemotherapy of cancer cells depends strongly on the interaction of cancer cells with the tumor microenvironment. In multiple myeloma, a cancer of plasma cells that localizes preferentially in the bone marrow, the microenvironment is highly enriched with myeloid cells. The majority of myeloid cells are represented by mature and immature neutrophils. The contribution of the different myeloid cell populations to tumor progression and chemoresistance in multiple myeloma is discussed.
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Affiliation(s)
- Sarah E Herlihy
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA
| | - Cindy Lin
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA
| | - Yulia Nefedova
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA.
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Savvidou OD, Bolia IK, Chloros GD, Papanastasiou J, Koutsouradis P, Papagelopoulos PJ. Denosumab: Current Use in the Treatment of Primary Bone Tumors. Orthopedics 2017; 40:204-210. [PMID: 28732103 DOI: 10.3928/01477447-20170627-04] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Denosumab, a human monoclonal antibody that inhibits bone resorption by binding on the receptor activator of the nuclear factor kappa-β ligand, has recently emerged as an additional option in the treatment of musculoskeletal osteolytic tumors. This article focuses on the recent literature regarding the effectiveness of denosumab in the management of giant cell tumor, multiple myeloma, aneurysmal bone cyst, and osteosarcoma. The mechanism of action of denosumab in the management of these tumors and the associated side effects are discussed in detail. [ Orthopedics. 2017; 40(4):204-210.].
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78
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Heusschen R, Muller J, Duray E, Withofs N, Bolomsky A, Baron F, Beguin Y, Menu E, Ludwig H, Caers J. Molecular mechanisms, current management and next generation therapy in myeloma bone disease. Leuk Lymphoma 2017; 59:14-28. [PMID: 28573897 DOI: 10.1080/10428194.2017.1323272] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multiple myeloma (MM) bone disease is a major cause of morbidity and mortality in MM patients and persists even in patients in remission. This bone disease is caused by an uncoupling of bone remodeling, with increased osteoclast and decreased osteoblast activity and formation, culminating in lytic bone destruction. Bisphosphonates are the current standard of care but new therapies are needed. As the molecular mechanisms controlling MM bone disease are increasingly well understood, new therapeutic targets are extensively explored in the preclinical setting and initial clinical trials with novel compounds now show promising results. In this review, we will provide a comprehensive overview of the biology of MM bone disease, summarize its current clinical management and discuss preclinical and clinical data on next generation therapies.
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Affiliation(s)
- Roy Heusschen
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium
| | - Joséphine Muller
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium
| | - Elodie Duray
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium
| | - Nadia Withofs
- b Division of Nuclear Medicine and Oncological Imaging, Department of Medical Physics , University and CHU of Liège , Liège , Belgium
| | - Arnold Bolomsky
- c Wilhelminen Cancer Research Institute, Department of Medicine I , Center for Oncology and Hematology, Wilhelminenspital , Vienna , Austria
| | - Frédéric Baron
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium.,d Division of Hematology, Department of Medicine , University and CHU of Liège , Liège , Belgium
| | - Yves Beguin
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium.,d Division of Hematology, Department of Medicine , University and CHU of Liège , Liège , Belgium
| | - Eline Menu
- e Department of Hematology and Immunology , Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Heinz Ludwig
- c Wilhelminen Cancer Research Institute, Department of Medicine I , Center for Oncology and Hematology, Wilhelminenspital , Vienna , Austria
| | - Jo Caers
- a Laboratory of Hematology , University of Liège, GIGA-I3 , Liège , Belgium.,d Division of Hematology, Department of Medicine , University and CHU of Liège , Liège , Belgium
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Mohan M, Samant RS, Yoon D, Buros AF, Branca A, Montgomery CO, Nicholas R, Suva LJ, Morello R, Thanendrarajan S, Schinke C, Yaccoby S, van Rhee F, Davies FE, Morgan GJ, Zangari M. Extensive Remineralization of Large Pelvic Lytic Lesions Following Total Therapy Treatment in Patients With Multiple Myeloma. J Bone Miner Res 2017; 32:1261-1266. [PMID: 28240368 PMCID: PMC5466479 DOI: 10.1002/jbmr.3111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/01/2017] [Accepted: 02/17/2017] [Indexed: 01/15/2023]
Abstract
Osteolytic bone lesions are a hallmark of multiple myeloma (MM) bone disease. Bone destruction is associated with severely imbalanced bone remodeling, secondary to increased osteoclastogenesis and significant osteoblast suppression. Lytic lesions of the pelvis are relatively common in MM patients and are known to contribute to the increased morbidity because of the high risk of fracture, which frequently demands extensive surgical intervention. After observing unexpected radiological improvement in serial large pelvic CT assessment in a patient treated in a total therapy protocol, the radiographic changes of pelvic osteolytic lesions by PET/CT scanning in patients who received Total Therapy 4 (TT4) treatment for myeloma were retrospectively analyzed. Sixty-two (62) patients with lytic pelvic lesions >1 cm in diameter were identified at baseline PET/CT scanning. Follow-up CT studies showed that 27 of 62 patients (43%) with large baseline pelvic lesions achieved significant reaccumulation of radiodense mineralization at the lytic cortical site. The average size of lytic lesions in which remineralization occurred was 4 cm (range, 1.3 to 10 cm). This study clearly demonstrates that mineral deposition in large pelvic lesions occurs in a significant proportion of MM patients treated with TT4, potentially affecting patient outcomes, quality of life, and future treatment strategies. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Meera Mohan
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Rohan S. Samant
- Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Donghoon Yoon
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Amy F. Buros
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Antonio Branca
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Corey O. Montgomery
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Richard Nicholas
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Larry J Suva
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, USA
| | - Roy Morello
- Department of Biology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | | | - Carolina Schinke
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Shmuel Yaccoby
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Frits van Rhee
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Faith E. Davies
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Gareth J. Morgan
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Maurizio Zangari
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Burwick N. Vitamin D and plasma cell dyscrasias: reviewing the significance. Ann Hematol 2017; 96:1271-1277. [PMID: 28502031 DOI: 10.1007/s00277-017-3016-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/05/2017] [Indexed: 12/31/2022]
Abstract
Monoclonal gammopathy of undetermined significance (MGUS) is a clonal plasma cell disorder and precursor disease to multiple myeloma and other related cancers. While MGUS is considered a benign disorder, with a low risk of disease progression, patients have altered bone microarchitecture and an increased risk of bone fracture. In addition, alterations in immune function are regularly found to correlate with disease activity. Vitamin D, an important hormone for bone and immune health, is commonly deficient in multiple myeloma patients. However, vitamin D deficiency is also prevalent in the general population. The purpose of this review is to highlight the current understanding of vitamin D in health and disease and to parallel this with a review of the abnormalities found in plasma cell dyscrasias. While some consensus statements have advocated for vitamin D testing and routine supplementation in MGUS, there is no clear standard of care approach and clinical practice patterns vary. Further research is needed to better understand how vitamin D influences outcomes in MGUS patients.
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Affiliation(s)
- Nicholas Burwick
- VA Puget Sound Health Care System, Seattle, WA, USA.
- Division of Hematology, University of Washington School of Medicine, Seattle, WA, USA.
- Department of Medicine, University of Washington Medical Center, 1705 NE Pacific St, M/S 358280, Seattle, WA, 98195, USA.
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81
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Cantley MD, Zannettino ACW, Bartold PM, Fairlie DP, Haynes DR. Histone deacetylases (HDAC) in physiological and pathological bone remodelling. Bone 2017; 95:162-174. [PMID: 27913271 DOI: 10.1016/j.bone.2016.11.028] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/31/2016] [Accepted: 11/28/2016] [Indexed: 11/21/2022]
Abstract
Histone deacetylases (HDACs)2 play important roles in the epigenetic regulation of gene expression in cells and are emerging therapeutic targets for treating a wide range of diseases. HDAC inhibitors (HDACi)3 that act on multiple HDAC enzymes have been used clinically to treat a number of solid and hematological malignancies. HDACi are also currently being studied for their efficacy in non-malignant diseases, including pathologic bone loss, but this has necessitated a better understanding of the roles of individual HDAC enzymes, particularly the eleven zinc-containing isozymes. Selective isozyme-specific inhibitors currently being developed against class I HDACs (1, 2, 3 and 8) and class II HDACs (4, 5, 6, 7, 9 and 10) will be valuable tools for elucidating the roles played by individual HDACs in different physiological and pathological settings. Isozyme-specific HDACi promise to have greater efficacy and reduced side effects, as required for treating chronic disease over extended periods of time. This article reviews the current understanding of roles for individual HDAC isozymes and effects of HDACi on bone cells, (osteoblasts, osteoclasts and osteocytes), in relation to bone remodelling in conditions characterised by pathological bone loss, including periodontitis, rheumatoid arthritis and myeloma bone disease.
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Affiliation(s)
- M D Cantley
- Discipline of Physiology, School of Medicine, University of Adelaide, SA 5005, Australia; Myeloma Research Laboratory, Cancer Theme, SAHMRI, Adelaide, SA 5000, Australia; Colgate Australian Clinical Dental Research Centre, Adelaide Dental School, University of Adelaide, SA 5005, Australia.
| | - A C W Zannettino
- Discipline of Physiology, School of Medicine, University of Adelaide, SA 5005, Australia; Myeloma Research Laboratory, Cancer Theme, SAHMRI, Adelaide, SA 5000, Australia
| | - P M Bartold
- Colgate Australian Clinical Dental Research Centre, Adelaide Dental School, University of Adelaide, SA 5005, Australia
| | - D P Fairlie
- Centre for Inflammation and Disease Research, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia; Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - D R Haynes
- Discipline of Anatomy and Pathology, School of Medicine, University of Adelaide, SA 5005, Australia
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Gavriatopoulou M, Dimopoulos MA, Kastritis E, Terpos E. Emerging treatment approaches for myeloma-related bone disease. Expert Rev Hematol 2017; 10:217-228. [PMID: 28092987 DOI: 10.1080/17474086.2017.1283213] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Multiple myeloma is characterized by the presence of osteolytic lesions that leads to devastating skeletal-related events in the majority of patients. Myeloma bone disease is attributed to increased osteoclastic and suppressed osteoblastic activity. Areas covered: Bisphosphonates remain the main treatment option, however they have limitations on their own. Understanding the pathogenesis of myeloma bone disease may provide a roadmap for new therapeutic approaches. The pathway of RANKRANKLOPG pathway has revealed denosumab, a monoclonal antibody targeting RANKL as a novel emerging therapy for myeloma-related bone disease. Furthermore, the Wnt signaling inhibitors dicckopf-1 and sclerostin that are implicated in the pathogenesis of bone destruction of myeloma are now targeted by novel monoclonal antibodies. Activin-A is a TGF-beta superfamily member which increases osteoclast activity and inhibits osteoblast function in myeloma; sotatercept and other molecules targeting activin-A have entered into clinical development. Several other molecules and pathways that play an important role in the pathogenesis of bone destruction in myeloma, such as periostin, adiponectin, Notch and BTK signaling are also targeted in an attempt to develop novel therapies for myeloma-related bone disease. Expert commentary: We summarize the current advances in the biology of myeloma bone disease and the potential therapeutic targets.
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Affiliation(s)
- Maria Gavriatopoulou
- a Department of Clinical Therapeutics , National and Kapodistrian University of Athens School of Medicine , Athens , Greece
| | - Meletios A Dimopoulos
- a Department of Clinical Therapeutics , National and Kapodistrian University of Athens School of Medicine , Athens , Greece
| | - Efstathios Kastritis
- a Department of Clinical Therapeutics , National and Kapodistrian University of Athens School of Medicine , Athens , Greece
| | - Evangelos Terpos
- a Department of Clinical Therapeutics , National and Kapodistrian University of Athens School of Medicine , Athens , Greece
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Abstract
Biochemical markers of bone turnover (BTM) are released during bone remodeling and can be measured in blood or urine as noninvasive surrogate markers for the bone remodeling rate. The C-terminal cross-linked telopeptide of type I collagen (βCTX) is released during bone resorption and is specific to bone tissue. Assays have been developed to measure βCTX in blood and in urine; most current use of βCTX measurement for research and in clinical practice is performed on a blood sample. Method-specific differences for serum and plasma βCTX have led to initiatives to standardize or harmonize βCTX commercial assays. βCTX demonstrates significant biological variation due to circadian rhythm and effect of food which can be minimized by standardized sample collection in the fasting state in the morning. While βCTX predicts fracture risk independent of bone mineral density, lack of data has precluded its inclusion in fracture risk calculators. The changes seen in βCTX with antiresorptive therapies have been well characterized and this has led to its widespread use for monitoring therapy in osteoporosis. However, more fracture-based data on appropriate treatment goals for monitoring need to be developed. Evidence is lacking for the use of βCTX in managing "drug holidays" of bisphosphonate treatment in osteoporosis or risk stratifying those at increased risk of developing osteonecrosis of the jaw. βCTX is useful as an adjunct to imaging techniques for the diagnosis of Paget's disease of bone and for monitoring therapy and detecting recurrence. βCTX also shows promise in the management of metastatic bone disease.
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84
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Wakita T, Mogi M, Kurita K, Kuzushima M, Togari A. Increase in RANKL: OPG Ratio in Synovia of Patients with Temporomandibular Joint Disorder. J Dent Res 2016; 85:627-32. [PMID: 16798863 DOI: 10.1177/154405910608500709] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although a recent study suggested the involvement of RANKL and osteoprotegerin (OPG) in the pathogenesis of bone-destructive disease, no study has focused on the RANKL:OPG ratio in the synovial fluid of patients with temporomandibular joint (TMJ) disorder. This communication reports on the concentrations of RANKL and OPG in synovial fluid from TMJ patients and healthy control individuals. In contrast to an unchanged concentration of RANKL, a strong decrease in the concentration of OPG was detected in the synovial fluid from patients with TMJ internal derangement. Treatment with the synovial fluid of osteoarthritis (OA) patients resulted in the high production of osteoclast-like cells from blood mononuclear cells in vitro, as well as in pit formation in dentin slices. The addition of anti-RANKL IgG or OPG attenuated OA-synovial fluid-induced osteoclast formation, suggesting that the increase in the RANKL:OPG ratio in the microenvironment of the joint has the potential to induce osteoclastogenesis in TMJ osteoarthritis.
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Affiliation(s)
- T Wakita
- Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan
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85
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Spanoudakis E, Papoutselis M, Terpos E, Dimopoulos MA, Tsatalas C, Margaritis D, Rahemtulla A, Kotsianidis I, Karadimitris A. Overexpression of RANKL by invariant NKT cells enriched in the bone marrow of patients with multiple myeloma. Blood Cancer J 2016; 6:e500. [PMID: 27834938 PMCID: PMC5148055 DOI: 10.1038/bcj.2016.108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- E Spanoudakis
- Department of Haematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - M Papoutselis
- Department of Haematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - E Terpos
- Department of Clinical Therapeutics, University of Athens School of Medicine, Athens, Greece
| | - M A Dimopoulos
- Department of Clinical Therapeutics, University of Athens School of Medicine, Athens, Greece
| | - C Tsatalas
- Department of Haematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - D Margaritis
- Department of Haematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - A Rahemtulla
- Centre for Haematology, Department of Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - I Kotsianidis
- Department of Haematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - A Karadimitris
- Centre for Haematology, Department of Medicine, Hammersmith Hospital, Imperial College London, London, UK
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86
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Zangari M, Suva LJ. The effects of proteasome inhibitors on bone remodeling in multiple myeloma. Bone 2016; 86:131-8. [PMID: 26947893 PMCID: PMC5516941 DOI: 10.1016/j.bone.2016.02.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/15/2016] [Accepted: 02/29/2016] [Indexed: 10/22/2022]
Abstract
Bone disease is a characteristic feature of multiple myeloma, a malignant plasma cell dyscrasia. In patients with multiple myeloma, the normal process of bone remodeling is dysregulated by aberrant bone marrow plasma cells, resulting in increased bone resorption, prevention of new bone formation, and consequent bone destruction. The ubiquitin-proteasome system, which is hyperactive in patients with multiple myeloma, controls the catabolism of several proteins that regulate bone remodeling. Clinical studies have reported that treatment with the first-in-class proteasome inhibitor bortezomib reduces bone resorption and increases bone formation and bone mineral density in patients with multiple myeloma. Since the introduction of bortezomib in 2003, several next-generation proteasome inhibitors have also been used clinically, including carfilzomib, oprozomib, ixazomib, and delanzomib. This review summarizes the available preclinical and clinical evidence regarding the effect of proteasome inhibitors on bone remodeling in multiple myeloma.
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Affiliation(s)
- Maurizio Zangari
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Larry J Suva
- Department of Orthopedic Surgery, Center for Orthopaedic Research, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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87
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Ji B, Genever PG, Fagan MJ. A virtual approach to evaluate therapies for management of multiple myeloma induced bone disease. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2016; 32:e02735. [PMID: 26198466 PMCID: PMC4989444 DOI: 10.1002/cnm.2735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Multiple myeloma bone disease is devastating for patients and a major cause of morbidity. The disease leads to bone destruction by inhibiting osteoblast activity while stimulating osteoclast activity. Recent advances in multiple myeloma research have improved our understanding of the pathogenesis of multiple myeloma-induced bone disease and suggest several potential therapeutic strategies. However, the effectiveness of some potential therapeutic strategies still requires further investigation and optimization. In this paper, a recently developed mathematical model is extended to mimic and then evaluate three therapies of the disease, namely: bisphosphonates, bortezomib and TGF-β inhibition. The model suggests that bisphosphonates and bortezomib treatments not only inhibit bone destruction, but also reduce the viability of myeloma cells. This contributes to the current debate as to whether bisphosphonate therapy has an anti-tumour effect. On the other hand, the analyses indicate that treatments designed to inhibit TGF-β do not reduce bone destruction, although it appears that they might reduce the viability of myeloma cells, which again contributes to the current controversy regarding the efficacy of TGF-β inhibition in multiple myeloma-induced bone disease.
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Affiliation(s)
- Bing Ji
- School of Control Science and EngineeringShandong UniversityJinan250061People's Republic of China
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88
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Lasco A, Morabito N, Basile G, Atteritano M, Gaudio A, Giorgianni GM, Morini E, Faraci B, Bellone F, Catalano A. Denosumab Inhibition of RANKL and Insulin Resistance in Postmenopausal Women with Osteoporosis. Calcif Tissue Int 2016; 98:123-8. [PMID: 26498169 DOI: 10.1007/s00223-015-0075-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/16/2015] [Indexed: 02/06/2023]
Abstract
The tumor necrosis factor-related cytokine receptor activator of nuclear factor kappa B ligand (RANKL) has been proposed as predictor of incident type 2 diabetes mellitus, and experimental blockade of RANKL resulted in a marked improvement of glucose tolerance. Denosumab is a fully human monoclonal antibody that binds to RANKL and prevents osteoclast formation, function and survival, leading to fracture risk reduction. The aim of our study was to investigate glucometabolic parameters, insulin resistance, and lipid profile in non-diabetic women receiving denosumab. Forty-eight women with postmenopausal osteoporosis were enrolled and treated with a subcutaneous dose (60 mg) of denosumab. At baseline and after 4, 12, ad 24 weeks, insulin resistance was computed by homeostasis model assessment of insulin resistance (HOMA-IR) and total cholesterol, triglycerides and HDL cholesterol were also measured. At baseline and after 24 weeks, bone turn-over markers were also evaluated. After denosumab administration, with the exception of a slight reduction of insulin and HOMA-IR values after 4 weeks (p < 0.05), neither fasting plasma glucose nor insulin and insulin resistance were significantly changed. Lipid parameters remained unchanged at each time-points of this study. A reduction of C-telopeptide of type 1 collagen (-63%, p < 0.0001) and osteocalcin (-45%, p < 0.0001), as bone resorption and formation markers, respectively, were observed after 24 weeks. Baseline levels of bone biomarkers were not predictive of HOMA-IR, and changes of osteocalcin were not associated to markers of glucose control. In osteoporotic otherwise healthy postmenopausal women, denosumab was not associated with relevant modification of insulin resistance and lipid profile.
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Affiliation(s)
- Antonino Lasco
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Nunziata Morabito
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Giorgio Basile
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Marco Atteritano
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Agostino Gaudio
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | | | - Elisabetta Morini
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Bianca Faraci
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Federica Bellone
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy
| | - Antonino Catalano
- Department of Clinical and Experimental Medicine, University Hospital of Messina, A.O.U. Policlinico "G. Martino", Via C. Valeria, 98125, Messina, Italy.
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89
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González-Suárez E, Sanz-Moreno A. RANK as a therapeutic target in cancer. FEBS J 2016; 283:2018-33. [PMID: 26749530 DOI: 10.1111/febs.13645] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/10/2015] [Accepted: 01/06/2016] [Indexed: 01/27/2023]
Abstract
The RANK signaling pathway has emerged as a new target in breast cancer as receptor activator of nuclear factor κB ligand (RANKL) and its receptor RANK mediate the pro-tumorigenic role of progesterone in the mammary gland. Thousands of cancer patients worldwide are already taking RANKL inhibitors for the management of bone metastasis, given the relevance of this pathway in osteoclastogenesis and bone resorption. RANK signaling also has multiple divergent effects in immunity and inflammation, both in the generation of active immune responses and in the induction of tolerance: it is required for lymph node organogenesis, thymic medullary epithelial development and self-tolerance, and regulates activation of several immune cells and inflammatory processes. The RANK pathway interferes with mammary epithelial differentiation and mediates the major proliferative response of mammary epithelium to progesterone and progesterone-driven expansion of mammary stem cells; it also controls hair follicle and epidermal stem cell homeostasis, pointing to RANK as a key regulator of epithelial stemness. Here we revisit the main functions of RANK signaling in bone remodeling, immune cells and epithelial differentiation. We also discuss the mechanistic evidence that supports its pleiotropic effects on cancer: from bone metastasis to immune and cancer-cell-dependent effects.
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Affiliation(s)
- Eva González-Suárez
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, IDIBELL, Barcelona, Spain
| | - Adrián Sanz-Moreno
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, IDIBELL, Barcelona, Spain
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90
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Abstract
Bone involvement represented by osteolytic bone disease (OBD) or osteopenia is one of the pathognomonic and defining characteristics of multiple myeloma (MM). Nearly 90 % of patients with MM develop osteolytic bone lesions, frequently complicated by skeletal-related events (SRE) such as severe bone pain, pathological fractures, vertebral collapse, hypercalcemia, and spinal cord compression. All of these not only result in a negative impact on quality of life but also adversely impact overall survival. OBD is a consequence of increased osteoclast (OC) activation along with osteoblast (OB) inhibition, resulting in altered bone remodeling. OC number and activity are increased in MM via cytokine deregulation within the bone marrow (BM) milieu, whereas negative regulators of OB differentiation suppress bone formation. Inhibition of osteolysis and stimulation of OB differentiation leads to reduced tumor growth in vivo. Therefore, novel agents targeting OBD are promising therapeutic strategies not only for the treatment of MM OBD but also for the treatment of MM. Several novel agents in addition to bisphosphonates are currently under investigation for their positive effect on bone remodeling via OC inhibition or OB stimulation. Future studies will look to combine or sequence all of these agents with the goal of not only alleviating morbidity from MM OBD but also capitalizing on the resultant antitumor activity.
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Affiliation(s)
- Homare Eda
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Loredana Santo
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - G David Roodman
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Noopur Raje
- Multiple Myeloma Program, Medical Oncology, Massachusetts General Hospital, Boston, MA, USA.
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91
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Abstract
Unprecedented advances in multiple myeloma (MM) therapy during the last 15 years are predominantly based on our increasing understanding of the pathophysiologic role of the bone marrow (BM) microenvironment. Indeed, new treatment paradigms, which incorporate thalidomide, immunomodulatory drugs (IMiDs), and proteasome inhibitors, target the tumor cell as well as its BM microenvironment. Ongoing translational research aims to understand in more detail how disordered BM-niche functions contribute to MM pathogenesis and to identify additional derived targeting agents. One of the most exciting advances in the field of MM treatment is the emergence of immune therapies including elotuzumab, daratumumab, the immune checkpoint inhibitors, Bispecific T-cell engagers (BiTes), and Chimeric antigen receptor (CAR)-T cells. This chapter will review our knowledge on the pathophysiology of the BM microenvironment and discuss derived novel agents that hold promise to further improve outcome in MM.
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Affiliation(s)
- Michele Moschetta
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Yawara Kawano
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Klaus Podar
- Department of Medical Oncology, National Center for Tumor Diseases (NCT), University of Heidelberg, Heidelberg, Germany.
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92
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The effects of lung and prostate cancer bone metastasis on serum osteoprotegerin levels: a meta-analysis. Sci Rep 2015; 5:18324. [PMID: 26671549 PMCID: PMC4680868 DOI: 10.1038/srep18324] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/16/2015] [Indexed: 01/11/2023] Open
Abstract
Bone metastasis leads to skeletal-related events in final-stage cancer patients. The incidence of prostate and lung cancers increases yearly; these cancers readily invade the bone. Some recent studies have found that serum osteoprotegerin (OPG) levels may be altered in patients with bone metastasis, whereas other reports have produced inconsistent findings. Hence, we conducted a meta-analysis to examine the effects of lung and prostate cancer on serum OPG levels. A systematic literature search was conducted using PubMed, Medline, and CNKI to identify relevant studies. A total of 11 studies were included. The standardized mean difference (SMD) and 95% confidence interval (95% CI) of the bone metastasis (BM) group, the non-bone metastasis (BM-) group and healthy controls were calculated. In prostate cancer, serum OPG levels in the BM group were higher than in the BM- group and healthy controls. Additionally, no significant difference in serum OPG levels was found between the BM- group and healthy controls. In lung cancer, serum OPG levels in the BM and BM- groups were significantly increased compared with healthy controls. However, no significant difference in serum OPG levels was found between the BM and BM- groups. Studies with larger sample sizes are required to confirm these findings.
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93
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Minarik J, Hermanova Z, Petrova P, Hrbek J, Zapletalova J, Krhovska P, Flodr P, Pika T, Bacovsky J, Flodrova P, Herman M, Scudla V. Prospective study of signalling pathways in myeloma bone disease with regard to activity of the disease, extent of skeletal involvement and correlation to bone turnover markers. Eur J Haematol 2015; 97:201-7. [PMID: 26613192 DOI: 10.1111/ejh.12708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2015] [Indexed: 12/15/2022]
Abstract
AIMS The aim of our study was to address the utility of serum levels of selected parameters of myeloma bone disease (MBD) signalling with regard to the pathogenesis of multiple myeloma (MM), activity, markers of bone turnover and extent of skeletal changes. PATIENTS AND METHODS We assessed prospectively 77 individuals with monoclonal gammopathies - 46 patients with active MM (AMM), 12 patients with smouldering MM (SMM) and 19 individuals with monoclonal gammopathy of undetermined significance (MGUS) to determine the role of HGF, MIP-1α, Syndecan-1, osteoprotegerin, Activin A, DKK1, Annexin A2 and NF-κB. RESULTS We found significant differences of most of the parameters between MGUS and AMM, and with respect to the activity of MM assessed by International Staging System. Most of the parameters of MBD signalling correlated with traditional markers of bone turnover. CONCLUSIONS All the signalling pathways were activated in MM with more pronounced osteoclastogenesis in comparison with bone formation but not in MGUS regardless of its risk category, suggesting that MBD is not activated in MGUS until the process of transformation into MM. The parameters of MBD signalling might precede the increase of conventional parameters of bone turnover suggesting their possible role in early indication of anti-resorption therapy.
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Affiliation(s)
- Jiri Minarik
- Department of Hemato-Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Zuzana Hermanova
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Pavla Petrova
- Department of Clinical Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Jan Hrbek
- Department of Radiology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Jana Zapletalova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Petra Krhovska
- Department of Hemato-Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Patrik Flodr
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Tomas Pika
- Department of Hemato-Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Jaroslav Bacovsky
- Department of Hemato-Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Pavla Flodrova
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Miroslav Herman
- Department of Radiology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Vlastimil Scudla
- Department of Hemato-Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
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94
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Mechanism of Action of Bortezomib and the New Proteasome Inhibitors on Myeloma Cells and the Bone Microenvironment: Impact on Myeloma-Induced Alterations of Bone Remodeling. BIOMED RESEARCH INTERNATIONAL 2015; 2015:172458. [PMID: 26579531 PMCID: PMC4633537 DOI: 10.1155/2015/172458] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/22/2015] [Accepted: 09/27/2015] [Indexed: 12/17/2022]
Abstract
Multiple myeloma (MM) is characterized by a high capacity to induce alterations in the bone remodeling process. The increase in osteoclastogenesis and the suppression of osteoblast formation are both involved in the pathophysiology of the bone lesions in MM. The proteasome inhibitor (PI) bortezomib is the first drug designed and approved for the treatment of MM patients by targeting the proteasome. However, recently novel PIs have been developed to overcome bortezomib resistance. Interestingly, several preclinical data indicate that the proteasome complex is involved in both osteoclast and osteoblast formation. It is also evident that bortezomib either inhibits osteoclast differentiation induced by the receptor activator of nuclear factor kappa B (NF-κB) ligand (RANKL) or stimulates the osteoblast differentiation. Similarly, the new PIs including carfilzomib and ixazomib can inhibit bone resorption and stimulate the osteoblast differentiation. In a clinical setting, PIs restore the abnormal bone remodeling by normalizing the levels of bone turnover markers. In addition, a bone anabolic effect was described in responding MM patients treated with PIs, as demonstrated by the increase in the osteoblast number. This review summarizes the preclinical and clinical evidence on the effects of bortezomib and other new PIs on myeloma bone disease.
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95
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Morais SA, du Preez HE, Akhtar MR, Cross S, Isenberg DA. Musculoskeletal complications of haematological disease. Rheumatology (Oxford) 2015; 55:968-81. [DOI: 10.1093/rheumatology/kev360] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 01/19/2023] Open
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96
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Palma BD, Guasco D, Pedrazzoni M, Bolzoni M, Accardi F, Costa F, Sammarelli G, Craviotto L, De Filippo M, Ruffini L, Omedè P, Ria R, Aversa F, Giuliani N. Osteolytic lesions, cytogenetic features and bone marrow levels of cytokines and chemokines in multiple myeloma patients: Role of chemokine (C-C motif) ligand 20. Leukemia 2015; 30:409-16. [PMID: 26419509 DOI: 10.1038/leu.2015.259] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 09/07/2015] [Accepted: 09/10/2015] [Indexed: 01/17/2023]
Abstract
The relationship between bone marrow (BM) cytokine and chemokine levels, cytogenetic profiles and skeletal involvement in multiple myeloma (MM) patients is not yet defined. This study investigated a cohort of 455 patients including monoclonal gammopathy of uncertain significance (MGUS), smoldering MM and symptomatic MM patients. Skeletal surveys, positron emission tomography (PET)/computerized tomography (CT) and magnetic resonance imaging (MRI) were used to identify myeloma bone disease. Significantly higher median BM levels of both C-C motif Ligand (CCL)3 and CCL20 were found in MM patients with radiographic evidence of osteolytic lesions as compared with those without, and in all MM patients with positive PET/CT scans. BM levels of CCL3, CCL20, Activin-A and Dickkopf-1 (DKK-1) were significantly higher in patients with high bone disease as compared with patients with low bone disease. Moreover, CCL20 BM levels were significant predictors of osteolysis on X-rays by multivariate logistic analysis. On the other hand, DKK-1 levels were related to the presence of MRI lesions independently of the osteolysis at the X-rays. Our data define the relationship between bone disease and the BM cytokine and chemokine patterns highlighting the tight relationship between CCL20 BM levels and osteolysis in MM.
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Affiliation(s)
- B Dalla Palma
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy.,Hematology and BMT Center, Azienda Ospedaliero-Universitaria Parma, Parma, Italy
| | - D Guasco
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - M Pedrazzoni
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy.,Clinica e Terapia Medica, Azienda Ospedaliero-Universitaria Parma, Parma, Italy
| | - M Bolzoni
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - F Accardi
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - F Costa
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - G Sammarelli
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - L Craviotto
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy
| | - M De Filippo
- Radiology Unit, University of Parma, Parma, Italy
| | - L Ruffini
- Nuclear Medicine Unit, Azienda Ospedaliero-Universitaria Parma, Parma, Italy
| | - P Omedè
- Myeloma Unit, Division of Hematology, University of Torino, Torino, Italy
| | - R Ria
- Department of Biomedical Sciences and Human Oncology, Internal Medicine, University of Bari, Bari, Italy
| | - F Aversa
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy.,Hematology and BMT Center, Azienda Ospedaliero-Universitaria Parma, Parma, Italy
| | - N Giuliani
- Department of Clinical and Experimental Medicine, Myeloma Unit, University of Parma, Parma, Italy.,Hematology and BMT Center, Azienda Ospedaliero-Universitaria Parma, Parma, Italy
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97
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Mirza F, Canalis E. Management of endocrine disease: Secondary osteoporosis: pathophysiology and management. Eur J Endocrinol 2015; 173:R131-51. [PMID: 25971649 PMCID: PMC4534332 DOI: 10.1530/eje-15-0118] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 05/12/2015] [Indexed: 12/14/2022]
Abstract
Osteoporosis is a skeletal disorder characterized by decreased mass and compromised bone strength predisposing to an increased risk of fractures. Although idiopathic osteoporosis is the most common form of osteoporosis, secondary factors may contribute to the bone loss and increased fracture risk in patients presenting with fragility fractures or osteoporosis. Several medical conditions and medications significantly increase the risk for bone loss and skeletal fragility. This review focuses on some of the common causes of osteoporosis, addressing the underlying mechanisms, diagnostic approach and treatment of low bone mass in the presence of these conditions.
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Affiliation(s)
- Faryal Mirza
- Division of Endocrinology and MetabolismDepartments of MedicineOrthopaedic SurgeryUConn Musculoskeletal Institute, UConn Health, 263 Farmington Avenue, Farmington, Connecticut 06030-5456, USA
| | - Ernesto Canalis
- Division of Endocrinology and MetabolismDepartments of MedicineOrthopaedic SurgeryUConn Musculoskeletal Institute, UConn Health, 263 Farmington Avenue, Farmington, Connecticut 06030-5456, USA Division of Endocrinology and MetabolismDepartments of MedicineOrthopaedic SurgeryUConn Musculoskeletal Institute, UConn Health, 263 Farmington Avenue, Farmington, Connecticut 06030-5456, USA
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Li Y, Li N, Yan Z, Li H, Chen L, Zhang Z, Fan G, Xu K, Li Z. Dysregulation of the NLRP3 inflammasome complex and related cytokines in patients with multiple myeloma. ACTA ACUST UNITED AC 2015; 21:144-51. [PMID: 26146985 DOI: 10.1179/1607845415y.0000000029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVE The NLRP3 inflammasome complex, an important regulatory factor of inflammation and cell apoptosis, has attracted considerable attention in the development of tumor. Here, we analyzed the expression and clinical significance of NLRP3 inflammasome complex and related cytokines in patients with multiple myeloma (MM). METHODS Peripheral blood and bone marrow of 38 newly diagnosed myeloma patients and 25 age- and gender-matched healthy people were studied. NLRP3 and caspase-1 were analyzed using quantitative real-time polymerase chain reaction and Western blot and IL-1beta, IL-18, RANKL, and OPG were evaluated by enzyme-linked immunosorbent assay. RESULTS We showed that aberrant NLRP3 and caspase-1 expression were observed in MM and down-regulated compared with the healthy people. We further demonstrated that NLRP3 mRNA was negatively correlated with beta2-microglobulin and plasma cell percentage in MM. The downstream cytokines IL-18 and sRANKL/OPG in MM patients were higher than that in control group. Moreover, the lower mRNA levels of NLRP3 and caspase-1 were shown to be positively correlated with IL-1beta in newly diagnosed MM patients. CONCLUSIONS This study demonstrated that dysregulated expression of NLRP3-caspase-1-IL-1beta axis was observed in patients with MM, suggesting they might be involved in the pathogenesis of MM.
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Affiliation(s)
- Yanjie Li
- a Laboratory Center of Diagnostics , Xuzhou Medical College , China
| | - Ning Li
- b Department of Geratology , The Second Affiliated Hospital of Xuzhou Medical College, General Hospital of Xuzhou Mining Group , China
| | - Zhiling Yan
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Hujun Li
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Lili Chen
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Zhiyao Zhang
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Guoqin Fan
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Kailin Xu
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
| | - Zhenyu Li
- c Department of Hematology , The Affiliated Hospital of Xuzhou Medical College , China
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Osteoprotegerin is a significant prognostic factor for overall survival in patients with primary systemic amyloidosis independent of the Mayo staging. Blood Cancer J 2015; 5:e319. [PMID: 26047389 PMCID: PMC4648482 DOI: 10.1038/bcj.2015.45] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/14/2015] [Accepted: 03/26/2015] [Indexed: 01/28/2023] Open
Abstract
Bone metabolism has not been systematically studied in primary (AL) amyloidosis. Thus we prospectively evaluated bone remodeling indices in 102 patients with newly diagnosed AL amyloidosis, 35 healthy controls, 35 newly diagnosed myeloma and 40 monoclonal gammopathy of undetermined significance patients. Bone resorption markers (C-telopeptide of type-1 collagen, N-telopeptide of type-1 collagen) and osteoclast regulators (soluble receptor activator of nuclear factor-κB ligand (sRANKL), osteoprotegerin (OPG)) were increased in AL patients compared with controls (P<0.01), but bone formation was unaffected. Myeloma patients had increased bone resorption and decreased bone formation compared with AL patients, while sRANKL/OPG ratio was markedly decreased in AL, due to elevated OPG in AL (P<0.001). OPG correlated with N-terminal pro-brain natriuretic peptide (P<0.001) and was higher in patients with cardiac involvement (P=0.028) and advanced Mayo stage (P=0.001). OPG levels above the upper value of healthy controls was associated with shorter survival (34 versus 91 months; P=0.026), while AL patients with OPG levels in the top quartile had very short survival (12 versus 58 months; P=0.024). In Mayo stage 1 disease, OPG identified patients with poor survival (12 versus >60 months; P=0.012). We conclude that increased OPG in AL is not only a compensation to osteoclast activation but may also reflect early cardiac damage and may identify patients at increased risk of death within those with earlier Mayo stage.
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Pecoraro V, Roli L, Germagnoli L, Banfi G. The prognostic role of bone turnover markers in multiple myeloma patients: The impact of their assay. A systematic review and meta-analysis. Crit Rev Oncol Hematol 2015; 96:54-66. [PMID: 26044302 DOI: 10.1016/j.critrevonc.2015.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 03/26/2015] [Accepted: 05/04/2015] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Multiple myeloma (MM) is characterized by the progressive destruction of bone tissue due to the uncontrolled proliferation of the immunoglobulins. The detection of bone turnover markers (BTMs) may represent a non-invasive method to assess the bone involvement and to predict the risk of bone morbidity. This systematic review evaluates clinical utility of changes in BTMs levels in MM patients and their prognostic role. METHODS We searched Medline, Embase, WOS and Scopus. All eligible articles were examined and the risk of bias was evaluated. Results about PICP, PINP, ICTP, OC, CTX, NTX, RANKL and OPG were extracted. Weighted mean difference, risk ratio and hazard ratio were pooled. RESULTS Thirty studies and more than 2500 patients were included in this systematic review. The majority of them (50%) used ELISA to quantify BTMs, 10 of them used RIA and only 4 did not report the information regarding the type of immunoassays. In MM patients, the concentration of NTX and ICTP increased, instead the concentrations of BAP and OC lowered when compared to healthy subjects. High levels of ICTP were predictive of bone events (RR 1.18) and they were associated to poor survival (HR 1.08). Most of the included studies were considered at high risk of bias, in fact the reporting of the results was often incomplete. Between-studies heterogeneity was high. CONCLUSIONS BTMs measurement may be very useful in the management of MM patients, especially to evaluate the bone disease progression. They could help clinicians to identify patients at high risk of bone events and to opt for more appropriate therapy; nevertheless their high biological and analytical variability limit their implementation in clinical practice.
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Affiliation(s)
- Valentina Pecoraro
- Clinical Epidemiology Unit, IRCCS Galeazzi Orthopedic Institute, Via Riccardo Galeazzi, 4, 20161 Milan, Italy.
| | - Laura Roli
- Clinical Pathology and Endocrinology Laboratory, Azienda Unità Sanitaria Locale, Modena, Italy.
| | | | - Giuseppe Banfi
- IRCCS Galeazzi Orthopedic Institute, Milan, Italy; Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
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