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Devarajan E, Davis RE, Beird HC, Wang WL, Jensen VB, Jayakumar A, Leung CH, Lin HY, Wu CC, Ihezie SA, Tsai JW, Futreal PA, Lewis VO. Targeting IL-11R/EZH2 signaling axis as a therapeutic strategy for osteosarcoma lung metastases. Discov Oncol 2024; 15:232. [PMID: 38886296 PMCID: PMC11183017 DOI: 10.1007/s12672-024-01056-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/23/2024] [Indexed: 06/20/2024] Open
Abstract
Lung metastases are the primary cause of death for osteosarcoma (OS) patients. We recently validated interleukin-11 receptor α (IL-11Rα) as a molecular target for the inhibition of OS lung metastases. Since there is no clinically approved antibody against this receptor, we sought to identify downstream targets that mediate the effects of IL-11Rα signaling. We used shRNA to deplete IL-11Rα from OS cells; as a complementary approach, we added IL-11 exogenously to OS cells. The resulting changes in gene expression identified EZH2 as a downstream candidate. This was confirmed by knockdown of IL-11Rα in OS cells, which led to increased expression of genes repressed by histone methyltransferase EZH2, including members of the WNT pathway, a known target pathway of EZH2. Exogenous IL-11 increased the global levels of histone H3 lysine 27 trimethylation, evidence of EZH2 activation. Treatment with the EZH2 inhibitor GSK126 significantly reduced in vitro proliferation and increased cell-cycle arrest and apoptosis, which were partially mediated through the WNT pathway. In vivo, treatment of an orthotopic nude mouse model of OS with GSK126 inhibited lung metastatic growth and prolonged survival. In addition, significantly shorter recurrence-free survival was seen in OS patients with high levels of EZH2 in their primary tumors (P < .05). This suggests that IL-11Rα promotes OS lung metastasis via activation of EZH2. Thus, blocking EZH2 activity may be an effective strategy for inhibiting OS lung metastasis and improving prognosis.
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Affiliation(s)
- Eswaran Devarajan
- Department of Orthopaedic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1448, Houston, TX, 77030, USA
| | - R Eric Davis
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hannah C Beird
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Wei-Lien Wang
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - V Behrana Jensen
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Arumugam Jayakumar
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Cheuk Hong Leung
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Heather Y Lin
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chia-Chin Wu
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Stephanie A Ihezie
- McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jen-Wei Tsai
- Department of Anatomic Pathology, E-Da Hospital, Kaohsiung, Taiwan
| | - P Andrew Futreal
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Valerae O Lewis
- Department of Orthopaedic Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1448, Houston, TX, 77030, USA.
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2
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Hu Z, Wen S, Huo Z, Wang Q, Zhao J, Wang Z, Chen Y, Zhang L, Zhou F, Guo Z, Liu H, Zhou S. Current Status and Prospects of Targeted Therapy for Osteosarcoma. Cells 2022; 11:3507. [PMID: 36359903 PMCID: PMC9653755 DOI: 10.3390/cells11213507] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 09/26/2023] Open
Abstract
Osteosarcoma (OS) is a highly malignant tumor occurring in bone tissue with a high propensity to metastasize, and its underlying mechanisms remain largely elusive. The OS prognosis is poor, and improving the survival of OS patients remains a challenge. Current treatment methods such as surgical approaches, chemotherapeutic drugs, and immunotherapeutic drugs remain ineffective. As research progresses, targeted therapy is gradually becoming irreplaceable. In this review, several treatment modalities for osteosarcoma, such as surgery, chemotherapy, and immunotherapy, are briefly described, followed by a discussion of targeted therapy, the important targets, and new technologies for osteosarcoma treatment.
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Affiliation(s)
- Zunguo Hu
- Department of Joint Surgery, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang 261061, China
| | - Shuang Wen
- Department of Joint Surgery, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang 261061, China
| | - Zijun Huo
- Department of Histology and Embryology, School of Basic Medical Sciences, Weifang Medical University, Weifang 261053, China
| | - Qing Wang
- Neurologic Disorders and Regenerative Repair Laboratory, Weifang Medical University, Weifang 261053, China
| | - Jiantao Zhao
- Department of Histology and Embryology, School of Basic Medical Sciences, Weifang Medical University, Weifang 261053, China
| | - Zihao Wang
- Department of Joint Surgery, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang 261061, China
| | - Yanchun Chen
- Department of Histology and Embryology, School of Basic Medical Sciences, Weifang Medical University, Weifang 261053, China
| | - Lingyun Zhang
- Neurologic Disorders and Regenerative Repair Laboratory, Weifang Medical University, Weifang 261053, China
| | - Fenghua Zhou
- Neurologic Disorders and Regenerative Repair Laboratory, Weifang Medical University, Weifang 261053, China
| | - Zhangyu Guo
- Neurologic Disorders and Regenerative Repair Laboratory, Weifang Medical University, Weifang 261053, China
| | - Huancai Liu
- Department of Joint Surgery, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang 261061, China
| | - Shuanhu Zhou
- Department of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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3
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Recent and Ongoing Research into Metastatic Osteosarcoma Treatments. Int J Mol Sci 2022; 23:ijms23073817. [PMID: 35409176 PMCID: PMC8998815 DOI: 10.3390/ijms23073817] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 12/16/2022] Open
Abstract
The survival rate for metastatic osteosarcoma has not improved for several decades, since the introduction and refinement of chemotherapy as a treatment in addition to surgery. Over two thirds of metastatic osteosarcoma patients, many of whom are children or adolescents, fail to exhibit durable responses and succumb to their disease. Concerted efforts have been made to increase survival rates through identification of candidate therapies via animal studies and early phase trials of novel treatments, but unfortunately, this work has produced negligible improvements to the survival rate for metastatic osteosarcoma patients. This review summarizes data from clinical trials of metastatic osteosarcoma therapies as well as pre-clinical studies that report efficacy of novel drugs against metastatic osteosarcoma in vivo. Considerations regarding the design of animal studies and clinical trials to improve survival outcomes for metastatic osteosarcoma patients are also discussed.
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4
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Unraveling the IGF System Interactome in Sarcomas Exploits Novel Therapeutic Options. Cells 2021; 10:cells10082075. [PMID: 34440844 PMCID: PMC8392407 DOI: 10.3390/cells10082075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 12/15/2022] Open
Abstract
Aberrant bioactivity of the insulin-like growth factor (IGF) system results in the development and progression of several pathologic conditions including cancer. Preclinical studies have shown promising anti-cancer therapeutic potentials for anti-IGF targeted therapies. However, a clear but limited clinical benefit was observed only in a minority of patients with sarcomas. The molecular complexity of the IGF system, which comprises multiple regulators and interactions with other cancer-related pathways, poses a major limitation in the use of anti-IGF agents and supports the need of combinatorial therapeutic strategies to better tackle this axis. In this review, we will initially highlight multiple mechanisms underlying IGF dysregulation in cancer and then focus on the impact of the IGF system and its complexity in sarcoma development and progression as well as response to anti-IGF therapies. We will also discuss the role of Ephrin receptors, Hippo pathway, BET proteins and CXCR4 signaling, as mediators of sarcoma malignancy and relevant interactors with the IGF system in tumor cells. A deeper understanding of these molecular interactions might provide the rationale for novel and more effective therapeutic combinations to treat sarcomas.
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Loh AHP, Stewart E, Bradley CL, Chen X, Daryani V, Stewart CF, Calabrese C, Funk A, Miller G, Karlstrom A, Krafcik F, Goshorn DR, Vogel P, Bahrami A, Shelat A, Dyer MA. Combinatorial screening using orthotopic patient derived xenograft-expanded early phase cultures of osteosarcoma identify novel therapeutic drug combinations. Cancer Lett 2018; 442:262-270. [PMID: 30395907 PMCID: PMC6342199 DOI: 10.1016/j.canlet.2018.10.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/17/2018] [Accepted: 10/24/2018] [Indexed: 11/28/2022]
Abstract
Lead discovery in osteosarcoma has been hampered by the lack of new agents, limited representative clinical samples and paucity of accurate preclinical models. We developed orthotopic patient-derived xenografts (PDXs) that recapitulated the molecular, cellular and histologic features of primary tumors, and screened PDX-expanded short-term cultures and commercial cell lines of osteosarcoma against focused drug libraries. Osteosarcoma cells were most sensitive to HDAC, proteasome, and combination PI3K/MEK and PI3K/mTOR inhibitors, and least sensitive to PARP, RAF, ERK and MEK inhibitors. Correspondingly, PI3K signaling pathway genes were up-regulated in metastatic tumors compared to primary tumors. In combinatorial screens, as a class, HDAC inhibitors showed additive effects when combined with standard-of-care agents gemcitabine and doxorubicin. This lead discovery strategy afforded a means to perform high-throughput drug screens of tumor cells that accurately recapitulated those from original human tumors, and identified classes of novel and repurposed drugs with activity against osteosarcoma.
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Affiliation(s)
- Amos H P Loh
- Department of Paediatric Surgery, KK Women's and Children's Hospital, Singapore; Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Elizabeth Stewart
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Cori L Bradley
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Xiang Chen
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Vinay Daryani
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Clinton F Stewart
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Christopher Calabrese
- Animal Resources Center, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Amy Funk
- Animal Resources Center, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Greg Miller
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Asa Karlstrom
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Fred Krafcik
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - David R Goshorn
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Peter Vogel
- Animal Resources Center, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Armita Bahrami
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Anang Shelat
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Michael A Dyer
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA; Howard Hughes Medical Institute, Chevy Chase, MD, 20815, USA.
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6
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Li YS, Liu Q, He HB, Luo W. The possible role of insulin-like growth factor-1 in osteosarcoma. Curr Probl Cancer 2018; 43:228-235. [PMID: 30217668 DOI: 10.1016/j.currproblcancer.2018.08.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/27/2018] [Indexed: 12/26/2022]
Abstract
Osteosarcoma (OS) is a common malignant tumor of bone, of which clear understanding of molecular pathologic process is not yet possible. Insulin-like growth factor-1 (IGF-1) is a hormone that plays vital role in development and function of many tissues. Unfortunately, IGF-1 and its receptor (IGF-1R)'s over-expression have been implicated in carcinogenesis, and indicated to constitute a risk factor for the development of multiple human cancers, including OS. Increased levels of IGF-1 and IGF-1R have been reported in OS, leading to cancer progression through transformation, proliferation, pro-metastasis, and decreased susceptibility to apoptosis. Over-expression of IGF-1/IGF-1R signaling also contributes to tumor cell survival, metastasis, and resistance to chemotherapeutic drugs. IGF-1 has been included as an OS marker recently, and targeting IGF-1 is an interesting and promising approach in OS therapeutics. However more investigations with clinical trials are necessary to validate the use of drugs against IGF-1 that may provide a basis for new therapeutic approaches to treat this devastating disease. This review article focused on the role of IGF-1/IGF-1R in OS progression and therapeutic aspects of OS targeting IGF-1.
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Affiliation(s)
- Yu-Sheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Qing Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Hong-Bo He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Wei Luo
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, PR China.
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Chiu YJ, Hour MJ, Jin YA, Lu CC, Tsai FJ, Chen TL, Ma H, Juan YN, Yang JS. Disruption of IGF‑1R signaling by a novel quinazoline derivative, HMJ‑30, inhibits invasiveness and reverses epithelial-mesenchymal transition in osteosarcoma U‑2 OS cells. Int J Oncol 2018; 52:1465-1478. [PMID: 29568964 PMCID: PMC5873869 DOI: 10.3892/ijo.2018.4325] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 03/01/2018] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma is the most common primary malignancy of the bone and is characterized by local invasion and distant metastasis. Over the past 20 years, long-term outcomes have reached a plateau even with aggressive therapy. Overexpression of insulin-like growth factor 1 receptor (IGF‑1R) is associated with tumor proliferation, invasion and migration in osteosarcoma. In the present study, our group developed a novel quinazoline derivative, 6-fluoro‑2-(3-fluorophenyl)-4-(cyanoanilino)quinazoline (HMJ‑30), in order to disrupt IGF‑1R signaling and tumor invasiveness in osteosarcoma U‑2 OS cells. Molecular modeling, immune-precipitation, western blotting and phosphorylated protein kinase sandwich ELISA assays were used to confirm this hypothesis. The results demonstrated that HMJ‑30 selectively targeted the ATP-binding site of IGF‑1R and inhibited its downstream phosphoinositide 3-kinase/protein kinase B, Ras/mitogen-activated protein kinase, and IκK/nuclear factor-κB signaling pathways in U‑2 OS cells. HMJ‑30 inhibited U‑2 OS cell invasion and migration and downregulated protein levels and activities of matrix metalloproteinase (MMP)‑2 and MMP-9. An increase in protein levels of tissue inhibitor of metalloproteinase (TIMP)‑1 and TIMP‑2 was also observed. Furthermore, HMJ‑30 caused U‑2 OS cells to aggregate and form tight clusters, and these cells were flattened, less elongated and displayed cobblestone-like shapes. There was an increase in epithelial markers and a decrease in mesenchymal markers, indicating that the cells underwent the reverse epithelial-mesenchymal transition (EMT) process. Overall, these results demonstrated the potential molecular mechanisms underlying the effects of HMJ‑30 on invasiveness and EMT in U‑2 OS cells, suggesting that this compound deserves further investigation as a potential anti-osteosarcoma drug.
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Affiliation(s)
- Yu-Jen Chiu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veteran General Hospital, Taipei 112, Taiwan, R.O.C
| | - Mann-Jen Hour
- School of Pharmacy, China Medical University, Taichung 404, Taiwan, R.O.C
| | - Yi-An Jin
- Department of Dermatology, Taipei Medical University Hospital, Taipei 110, Taiwan, R.O.C
| | - Chi-Cheng Lu
- Department of Pharmacy, Buddhist Tzu Chi General Hospital, Hualien 970, Taiwan, R.O.C
| | - Fuu-Jen Tsai
- Genetics Center, Department of Medical Research, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
| | - Tai-Lin Chen
- Institute of Biochemistry and Molecular Biology, National Yang Ming University, Taipei 112, Taiwan, R.O.C
| | - Hsu Ma
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veteran General Hospital, Taipei 112, Taiwan, R.O.C
| | - Yu-Ning Juan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan, R.O.C
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan, R.O.C
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8
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Choi N, Kim S, Cho J, Kim BK, Cho YS, Jang JY, Baek CH. Exponentially growing osteosarcoma of mandible with acromegaly. Head Neck 2016; 38:E2432-E2436. [PMID: 26879563 DOI: 10.1002/hed.24394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2015] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Osteosarcoma of the head and neck is aggressive malignancy that might be affected by growth hormone. The purpose of this study was to demonstrate an unusual case of osteosarcoma with acromegaly. METHODS AND RESULTS This case is about a 39-year-old woman with an osteosarcoma of the mandible, who had a history of exponential tumor growth in spite of chemotherapy at another hospital. She transferred to Samsung Medical Center and underwent a wide resection of tumor and free flap reconstruction. During postoperative care, a brain MRI and hormonal test revealed a growth hormone-secreting pituitary adenoma, and then a transsphenoidal approach pituitary tumor removal was performed. Immunohistochemistry of the osteosarcoma indicated positive for insulin-like growth factor (IGF)-2 and somatostatin receptor. CONCLUSION This study proved the IGF-2 and somatostatin receptor from the osteosarcoma of the patient with acromegaly, and this could explain that the growth hormone secreting from the pituitary adenoma might be a risk factor of therapeutic intractability and growth acceleration of osteosarcoma. © 2016 Wiley Periodicals, Inc. Head Neck 38: E2432-E2436, 2016.
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Affiliation(s)
- Nayeon Choi
- Department of Otorhinolaryngology - Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seokhwi Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jungkyu Cho
- Department of Otorhinolaryngology - Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Byung Kil Kim
- Department of Otorhinolaryngology - Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Young Sang Cho
- Department of Otorhinolaryngology - Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jeon Yeob Jang
- Department of Otorhinolaryngology - Head and Neck Surgery, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Chung-Hwan Baek
- Department of Otorhinolaryngology - Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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9
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Mirabello L, Koster R, Moriarity BS, Spector LG, Meltzer PS, Gary J, Machiela MJ, Pankratz N, Panagiotou OA, Largaespada D, Wang Z, Gastier-Foster JM, Gorlick R, Khanna C, de Toledo SRC, Petrilli AS, Patiño-Garcia A, Sierrasesúmaga L, Lecanda F, Andrulis IL, Wunder JS, Gokgoz N, Serra M, Hattinger C, Picci P, Scotlandi K, Flanagan AM, Tirabosco R, Amary MF, Halai D, Ballinger ML, Thomas DM, Davis S, Barkauskas DA, Marina N, Helman L, Otto GM, Becklin KL, Wolf NK, Weg MT, Tucker M, Wacholder S, Fraumeni JF, Caporaso NE, Boland JF, Hicks BD, Vogt A, Burdett L, Yeager M, Hoover RN, Chanock SJ, Savage SA. A Genome-Wide Scan Identifies Variants in NFIB Associated with Metastasis in Patients with Osteosarcoma. Cancer Discov 2015; 5:920-31. [PMID: 26084801 DOI: 10.1158/2159-8290.cd-15-0125] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/11/2015] [Indexed: 02/02/2023]
Abstract
UNLABELLED Metastasis is the leading cause of death in patients with osteosarcoma, the most common pediatric bone malignancy. We conducted a multistage genome-wide association study of osteosarcoma metastasis at diagnosis in 935 osteosarcoma patients to determine whether germline genetic variation contributes to risk of metastasis. We identified an SNP, rs7034162, in NFIB significantly associated with metastasis in European osteosarcoma cases, as well as in cases of African and Brazilian ancestry (meta-analysis of all cases: P = 1.2 × 10(-9); OR, 2.43; 95% confidence interval, 1.83-3.24). The risk allele was significantly associated with lowered NFIB expression, which led to increased osteosarcoma cell migration, proliferation, and colony formation. In addition, a transposon screen in mice identified a significant proportion of osteosarcomas harboring inactivating insertions in Nfib and with lowered NFIB expression. These data suggest that germline genetic variation at rs7034162 is important in osteosarcoma metastasis and that NFIB is an osteosarcoma metastasis susceptibility gene. SIGNIFICANCE Metastasis at diagnosis in osteosarcoma is the leading cause of death in these patients. Here we show data that are supportive for the NFIB locus as associated with metastatic potential in osteosarcoma.
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Affiliation(s)
- Lisa Mirabello
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland.
| | - Roelof Koster
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Branden S Moriarity
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota. Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota. Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota. Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota
| | - Logan G Spector
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Paul S Meltzer
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Joy Gary
- Laboratory of Cancer Biology and Genetics, NCI, NIH, Bethesda, Maryland; College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Mitchell J Machiela
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Nathan Pankratz
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Orestis A Panagiotou
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - David Largaespada
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota. Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota. Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota. Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota
| | - Zhaoming Wang
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Julie M Gastier-Foster
- Nationwide Children's Hospital, and The Ohio State University Department of Pathology and Pediatrics, Columbus, Ohio
| | - Richard Gorlick
- Albert Einstein College of Medicine, The Children's Hospital at Montefiore, Bronx, New York
| | - Chand Khanna
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | | | | | - Ana Patiño-Garcia
- Department of Pediatrics, University Clinic of Navarra, Universidad de Navarra, Pamplona, Spain
| | - Luis Sierrasesúmaga
- Department of Pediatrics, University Clinic of Navarra, Universidad de Navarra, Pamplona, Spain
| | - Fernando Lecanda
- Department of Pediatrics, University Clinic of Navarra, Universidad de Navarra, Pamplona, Spain
| | - Irene L Andrulis
- University of Toronto, Litwin Centre for Cancer Genetics, Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Jay S Wunder
- University of Toronto, Litwin Centre for Cancer Genetics, Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Nalan Gokgoz
- University of Toronto, Litwin Centre for Cancer Genetics, Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Massimo Serra
- Laboratory of Experimental Oncology, Orthopaedic Rizzoli Institute, Bologna, Italy
| | - Claudia Hattinger
- Laboratory of Experimental Oncology, Orthopaedic Rizzoli Institute, Bologna, Italy
| | - Piero Picci
- Laboratory of Experimental Oncology, Orthopaedic Rizzoli Institute, Bologna, Italy
| | - Katia Scotlandi
- Laboratory of Experimental Oncology, Orthopaedic Rizzoli Institute, Bologna, Italy
| | - Adrienne M Flanagan
- University College London Cancer Institute, London, United Kingdom. Royal National Orthopaedic Hospital National Health Service Trust, Stanmore, Middlesex, United Kingdom
| | - Roberto Tirabosco
- Royal National Orthopaedic Hospital National Health Service Trust, Stanmore, Middlesex, United Kingdom
| | - Maria Fernanda Amary
- Royal National Orthopaedic Hospital National Health Service Trust, Stanmore, Middlesex, United Kingdom
| | - Dina Halai
- Royal National Orthopaedic Hospital National Health Service Trust, Stanmore, Middlesex, United Kingdom
| | | | - David M Thomas
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Sean Davis
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Donald A Barkauskas
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Neyssa Marina
- Stanford University and Lucile Packard Children's Hospital, Palo Alto, California
| | - Lee Helman
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - George M Otto
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Kelsie L Becklin
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota
| | - Natalie K Wolf
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota
| | - Madison T Weg
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Margaret Tucker
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Sholom Wacholder
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Joseph F Fraumeni
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Neil E Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Joseph F Boland
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Belynda D Hicks
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Aurelie Vogt
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Laurie Burdett
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Meredith Yeager
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Robert N Hoover
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Sharon A Savage
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
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10
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Borinstein SC, Barkauskas DA, Bernstein M, Goorin A, Gorlick R, Krailo M, Schwartz CL, Wexler LH, Toretsky JA. Analysis of serum insulin growth factor-1 concentrations in localized osteosarcoma: a children's oncology group study. Pediatr Blood Cancer 2014; 61:749-52. [PMID: 24178953 PMCID: PMC3946315 DOI: 10.1002/pbc.24778] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 08/21/2013] [Indexed: 12/20/2022]
Abstract
To investigate the role of insulin-like growth factor-1 (IGF-1), in localized osteosarcoma, serum levels of IGF-1, IGFBP-2, and IGFBP-3 were measured in 224 similarly treated, newly diagnosed patients. We demonstrated that younger patients had lower concentrations of IGF-1 and IGFBP-3 compared to older (P < 0.001) along with lower IGFBP-3:IGF-1 and IGFBP-2:IGF-1 ratios (P < 0.001). IGFBP-2 did not correlate with age (P = 0.16), yet IGFBP-2:IGF-1 ratios were higher in the younger population (P < 0.001). These findings show that older patients have higher concentrations of free IGF-1. None of IGF-1, IGFBP-2, nor IGFBP-3 concentrations were associated with event-free nor overall survival.
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Affiliation(s)
- Scott C. Borinstein
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Vanderbilt University, Nashvile, TN,Corresponding Author: Scott Borinstein, M.D., Ph.D., Assistant Professor, Pediatric Hematology/Oncology, Vanderbilt University, 390 PRB, 2200 Pierce Ave., Nashville, TN 37232-6310, w) 615-936-1762, f) 615-936-1767,
| | - Donald A. Barkauskas
- Children’s Oncology Group, Monrovia, CA, Department of Preventive Medicine, University of Southern California, Los Angeles CA
| | - Mark Bernstein
- Department of Pediatrics, Division of Hematology-Oncology, IWK Health Center, Dalhousie University, Halifax, NS, Canada
| | - Allen Goorin
- Division of Pediatric Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Richard Gorlick
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, The Children’s Hospital at Montefiore, Bronx, New York
| | - Mark Krailo
- Children’s Oncology Group, Monrovia, CA, Department of Preventive Medicine, University of Southern California, Los Angeles CA
| | - Cindy L. Schwartz
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Brown University, Providence, RI
| | - Leonard H. Wexler
- Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, Cornell University, New York, NY
| | - Jeffrey A. Toretsky
- Departments of Oncology and Pediatrics, Georgetown University, Washington, DC
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11
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Lamoureux F, Trichet V, Chipoy C, Blanchard F, Gouin F, Redini F. Recent advances in the management of osteosarcoma and forthcoming therapeutic strategies. Expert Rev Anticancer Ther 2014; 7:169-81. [PMID: 17288528 DOI: 10.1586/14737140.7.2.169] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Osteosarcoma is the most frequent primary bone tumor and occurs mainly in young patients (average age: 18 years). No evolution of the survival rates has been recorded for two decades in response to current treatment, associating often toxic and badly tolerated cures of chemotherapy (given a significant rate of bad responders) with preserving surgery. Among the proposed innovative strategies, immune-based therapy, antiangiogenesis agents, tumor-suppressor or suicide gene therapy, or anticancer drugs not commonly used in osteosarcoma are presented. A further strategy is to target the tumor microenvironment rather than the tumor itself.
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Affiliation(s)
- François Lamoureux
- Université de Nantes, Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Faculté de Médecine, Nantes cedex 1, France.
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12
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Posthumadeboer J, Piersma SR, Pham TV, van Egmond PW, Knol JC, Cleton-Jansen AM, van Geer MA, van Beusechem VW, Kaspers GJL, van Royen BJ, Jiménez CR, Helder MN. Surface proteomic analysis of osteosarcoma identifies EPHA2 as receptor for targeted drug delivery. Br J Cancer 2013; 109:2142-54. [PMID: 24064975 PMCID: PMC3798973 DOI: 10.1038/bjc.2013.578] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 08/23/2013] [Accepted: 08/28/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Osteosarcoma (OS) is the most common bone tumour in children and adolescents. Despite aggressive therapy regimens, treatment outcomes are unsatisfactory. Targeted delivery of drugs can provide higher effective doses at the site of the tumour, ultimately improving the efficacy of existing therapy. Identification of suitable receptors for drug targeting is an essential step in the design of targeted therapy for OS. METHODS We conducted a comparative analysis of the surface proteome of human OS cells and osteoblasts using cell surface biotinylation combined with nano-liquid chromatography - tandem mass spectrometry-based proteomics to identify surface proteins specifically upregulated on OS cells. This approach generated an extensive data set from which we selected a candidate to study for its suitability as receptor for targeted treatment delivery to OS. First, surface expression of the ephrin type-A receptor 2 (EPHA2) receptor was confirmed using FACS analysis. Ephrin type-A receptor 2 expression in human tumour tissue was tested using immunohistochemistry. Receptor targeting and internalisation studies were conducted to assess intracellular uptake of targeted modalities via EPHA2. Finally, tissue micro arrays containing cores of human OS tissue were stained using immunohistochemistry and EPHA2 staining was correlated to clinical outcome measures. RESULTS Using mass spectrometry, a total of 2841 proteins were identified of which 156 were surface proteins significantly upregulated on OS cells compared with human primary osteoblasts. Ephrin type-A receptor 2 was highly upregulated and the most abundant surface protein on OS cells. In addition, EPHA2 was expressed in a vast majority of human OS samples. Ephrin type-A receptor 2 effectively mediates internalisation of targeted adenoviral vectors into OS cells. Patients with EPHA2-positive tumours showed a trend toward inferior overall survival. CONCLUSION The results presented here suggest that the EPHA2 receptor can be considered an attractive candidate receptor for targeted delivery of therapeutics to OS.
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Affiliation(s)
- J Posthumadeboer
- Department of Orthopaedic Surgery, VU University Medical Center, PO Box 7057, 1007 MB Amsterdam, The Netherlands
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13
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Yamamoto N, Tsuchiya H. Chemotherapy for osteosarcoma – Where does it come from? What is it? Where is it going? Expert Opin Pharmacother 2013; 14:2183-93. [DOI: 10.1517/14656566.2013.827171] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Keskin O, Yalcin S. A review of the use of somatostatin analogs in oncology. Onco Targets Ther 2013; 6:471-83. [PMID: 23667314 PMCID: PMC3650572 DOI: 10.2147/ott.s39987] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 12/12/2022] Open
Abstract
Somatostatin is a neuropeptide produced by paracrine cells that are located throughout the gastrointestinal tract, lung, and pancreas, and is also found in various locations of the nervous system. It exerts neural control over many physiological functions including inhibition of gastrointestinal endocrine secretion through its receptors. Potent and biologically stable analogs of somatostatin have been developed. These somatostatin analogs show different efficacy on different receptors, and receptors are varyingly concentrated in specific tissues. Antitumor and antisecretory effects of somatostatin analogs in cancer have been shown in several in vivo and in vitro studies. However, these activities have not always yielded into clinically relevant patient outcome benefit. Somatostatin analogs are of clinical benefit in treating symptoms of ectopic hormone secretion (adrenocorticotropic hormone, growth hormone-releasing hormone) in lung cancer, without inducing a significant tumor response. They have also been shown to induce a statistically significant decrease in bone pain and increase in Karnofsky performance status in patients with metastatic prostate cancer. Somatostatin analogs alone or in combination with other agents have only limited antitumoral effect in breast cancer. In gastrointestinal cancers, studies have not shown an objective tumor response to somatostatin analogs except in endocrine tumors of the liver with symptomatic and biochemical improvement. In neuroendocrine tumors of the gastrointestinal system and pancreas, very high symptomatic and biochemical response rates have been achieved with somatostatin analogs. Antiproliferative activity has been clearly shown in metastatic midgut neuroendocrine tumors.
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Affiliation(s)
- Ozge Keskin
- Department of Medical Oncology, Hacettepe University Institute of Cancer, Ankara, Turkey
| | - Suayib Yalcin
- Department of Medical Oncology, Hacettepe University Institute of Cancer, Ankara, Turkey
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15
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Abstract
Appendicular osteosarcoma (OSA) is a primary bone sarcoma affecting humans during their second decade of life. Despite aggressive surgical and chemotherapeutic interventions, 30% of patients will experience progressive metastatic disease within 5 years of diagnosis. Understanding the biology of pediatric OSA and potential targets for therapeutic development remains an area of focus for both basic scientists and clinical oncologists. The identification and study of relevant comparative tumor models in mice and canines may allow for a better understanding of OSA biology, and permit the rapid investigation of novel therapeutic strategies for managing this metastatic bone sarcoma. This unit provides a protocol for using an orthotopic, syngeneic murine model of appendicular OSA as an investigative tool for the study of OSA biology. Additionally, the comparative relevance of spontaneously occurring appendicular OSA in canines for the study of pediatric bone sarcomas is discussed.
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Affiliation(s)
- Timothy M Fan
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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16
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Molecular alterations associated with osteosarcoma development. Sarcoma 2012; 2012:523432. [PMID: 22448123 PMCID: PMC3289857 DOI: 10.1155/2012/523432] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 12/02/2011] [Indexed: 12/11/2022] Open
Abstract
Osteosarcoma is the most frequent malignant primary bone tumor characterized by a high potency to form lung metastases which is the main cause of death. Unfortunately, the conventional chemotherapy is not fully effective on osteosarcoma metastases. The progression of a primary tumor to metastasis requires multiple processes, which are neovascularization, proliferation, invasion, survival in the bloodstream, apoptosis resistance, arrest at a distant organ, and outgrowth in secondary sites. Consequently, recent studies have revealed new insights into the molecular mechanisms of metastasis development. The understanding of the mechanism of molecular alterations can provide the identification of novel therapeutic targets and/or prognostic markers for osteosarcoma treatment to improve the clinical outcome.
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17
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PosthumaDeBoer J, Witlox MA, Kaspers GJL, van Royen BJ. Molecular alterations as target for therapy in metastatic osteosarcoma: a review of literature. Clin Exp Metastasis 2011; 28:493-503. [PMID: 21461590 PMCID: PMC3081058 DOI: 10.1007/s10585-011-9384-x] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 03/18/2011] [Indexed: 01/06/2023]
Abstract
Treating metastatic osteosarcoma (OS) remains a challenge in oncology. Current treatment strategies target the primary tumour rather than metastases and have a limited efficacy in the treatment of metastatic disease. Metastatic cells have specific features that render them less sensitive to therapy and targeting these features might enhance the efficacy of current treatment. A detailed study of the biological characteristics and behaviour of metastatic OS cells may provide a rational basis for innovative treatment strategies. The aim of this review is to give an overview of the biological changes in metastatic OS cells and the preclinical and clinical efforts targeting the different steps in OS metastases and how these contribute to designing a metastasis directed treatment for OS.
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Affiliation(s)
- J. PosthumaDeBoer
- Department of Orthopaedic Surgery, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - M. A. Witlox
- Department of Orthopaedic Surgery, Westfries Gasthuis, Hoorn, The Netherlands
| | - G. J. L. Kaspers
- Paediatric Oncology/Haematology, VU University Medical Center, Amsterdam, The Netherlands
| | - B. J. van Royen
- Department of Orthopaedic Surgery, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- VU University Medical Center, PO Box 7057, 1007 MB Amsterdam, The Netherlands
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18
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Abstract
Abstract
Objectives
The aim of this review was to examine gene therapy involving DNAzyme and siRNA encapsulation into chitosan nanoparticles, discussing the current and future status of this drug delivery system in enhancing drug delivery and cancer therapy.
Key findings
Cancer is a disease state in which the cells in our body undergo mutations at the genetic level and are transformed, acquiring the ability to replicate limitlessly. Conventional cancer treatment involves the use of surgery and cytotoxic chemotherapy and/or radiotherapy, which have the potential of harming normal, otherwise healthy, non-neoplastic cells. Newer forms of therapy such as immunotherapy and gene therapy have shown initial promise, but still require better ways to limit exposure to cancerous lesions in the body. As a result drug delivery systems have been developed in attempts to deliver therapeutics specifically to the target lesion site. One recent drug delivery system has revolved around the use of chitosan nanoparticle technology, where therapeutics are encapsulated into nanoparticles and targeted to tumours.
Summary
Though few, attempts at encapsulating therapeutics such as deoxyribozymes and small or short interfering RNA have been optimistic and encouraging.
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Affiliation(s)
- Mei Lin Tan
- Departments of Orthopaedics and Surgery, University of Melbourne, St Vincent's Hospital Melbourne, P.O. Box 2900, Fitzroy 3065, Australia
| | - Peter F M Choong
- Departments of Orthopaedics and Surgery, University of Melbourne, St Vincent's Hospital Melbourne, P.O. Box 2900, Fitzroy 3065, Australia
| | - Crispin R Dass
- Departments of Orthopaedics and Surgery, University of Melbourne, St Vincent's Hospital Melbourne, P.O. Box 2900, Fitzroy 3065, Australia
- Bone and Soft Tissue Sarcoma Service, Peter MacCallum Cancer Institute, Melbourne, Australia
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19
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Abstract
Osteosarcoma (OS) is a class of cancer originating from bone, mainly afflicting children or young adults. It is the second highest cause of cancer-related death in these age groups, mainly due to development of often fatal metastasis, usually in the lungs. Survival for these patients is poor despite the aggressive use of surgery, chemotherapy, and/or radiotherapy. Thus, new effective drugs and other forms of therapy are needed. This article reviews the biology and the state of the art management of OS. New experimental drugs and potential therapies targeting molecular pathways of OS are also discussed.
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20
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Abstract
Osteosarcoma is the most common malignant primary bone tumor in childhood. Despite multiagent chemotherapy and aggressive surgical resection, 30% of patients with localized disease and 80% of patients with metastatic disease at diagnosis will relapse. Survival for these patients has remained unchanged over the past 20 years. A number of novel agents in various stages of development hold promise for improving therapy for patients with osteosarcoma. This article will focus on novel therapeutic approaches, including agents targeting signal-transduction pathways, inhibitors of the tumor microenvironment and immunomodulatory agents, as well as overcoming resistance mechanisms and the use of novel delivery mechanisms.
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Affiliation(s)
- Kathleen O'Day
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, The Children's Hospital at Montefiore, 3415 Bainbridge Avenue, Rosenthal 3rd floor, Bronx, NY 10467, USA.
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21
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Hong SH, Briggs J, Newman R, Hoffman K, Mendoza A, LeRoith D, Helman L, Yakar S, Khanna C. Murine osteosarcoma primary tumour growth and metastatic progression is maintained after marked suppression of serum insulin-like growth factor I. Int J Cancer 2009; 124:2042-9. [PMID: 19132750 DOI: 10.1002/ijc.24169] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The insulin-like growth factor I (IGF-I) signaling pathway has been shown to play an important role in several aspects of cancer biology, including metastasis. The aim of this study was to define the contribution of serum (endocrine) and local (tumour microenvironment) IGF-I on osteosarcoma tumour growth and metastasis, a cancer that is known to be dependent on the IGF-I axis. To test this hypothesis, we evaluated the primary tumour growth and metastatic progression of K7M2 murine osteosarcoma cells injected to a genetically engineered mouse [liver-specific IGF-I deficient (LID)] in which serum IGF-I levels are reduced by 75%, while maintaining expression of IGF-I in normal tissues. We first demonstrated that IGF-I in the tumour and the tumour-microenvironment were maintained in the LID mice. Within this designed model, there was no difference in primary tumour growth or in pulmonary metastasis in LID mice compared to control mice. Furthermore, there was no difference in the number or localization of single metastatic cells immediately after their arrival in the lungs of LID mice and control mice, as analysed by single cell video microscopy. Collectively, these data suggest that marked reduction in serum IGF-I is not sufficient to slow the progression of either primary or metastatic models of osteosarcoma.
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Affiliation(s)
- Sung-Hyeok Hong
- Pediatric Oncology Branch, Centre for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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22
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Thomas R, Wang HJ, Tsai PC, Langford CF, Fosmire SP, Jubala CM, Getzy DM, Cutter GR, Modiano JF, Breen M. Influence of genetic background on tumor karyotypes: evidence for breed-associated cytogenetic aberrations in canine appendicular osteosarcoma. Chromosome Res 2009; 17:365-377. [PMID: 19337847 PMCID: PMC3758998 DOI: 10.1007/s10577-009-9028-z] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Revised: 12/15/2008] [Accepted: 12/15/2008] [Indexed: 12/23/2022]
Abstract
Recurrent chromosomal aberrations in solid tumors can reveal the genetic pathways involved in the evolution of a malignancy and in some cases predict biological behavior. However, the role of individual genetic backgrounds in shaping karyotypes of sporadic tumors is unknown. The genetic structure of purebred dog breeds, coupled with their susceptibility to spontaneous cancers, provides a robust model with which to address this question. We tested the hypothesis that there is an association between breed and the distribution of genomic copy number imbalances in naturally occurring canine tumors through assessment of a cohort of Golden Retrievers and Rottweilers diagnosed with spontaneous appendicular osteosarcoma. Our findings reveal significant correlations between breed and tumor karyotypes that are independent of gender, age at diagnosis, and histological classification. These data indicate for the first time that individual genetic backgrounds, as defined by breed in dogs, influence tumor karyotypes in a cancer with extensive genomic instability.
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Affiliation(s)
- Rachael Thomas
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
- Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, NC 27606, USA
| | - Huixia J. Wang
- Department of Statistics, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | - Pei-Chien Tsai
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
| | - Cordelia F. Langford
- Microarray Facility, The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SA, UK
| | - Susan P. Fosmire
- Integrated Department of Immunology, University of Colorado, Denver, CO 80214, USA
| | - Cristan M. Jubala
- Integrated Department of Immunology, University of Colorado, Denver, CO 80214, USA
| | | | - Gary R. Cutter
- Department of Biostatistics, University of Alabama Birmingham, Birmingham, AL 35294, USA
| | - Jaime F. Modiano
- Integrated Department of Immunology, University of Colorado, Denver, CO 80214, USA
- University of Colorado Cancer Center, Aurora, CO 80045, USA
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, MN 55108, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Matthew Breen
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
- Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, NC 27606, USA
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23
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Rikhof B, de Jong S, Suurmeijer AJH, Meijer C, van der Graaf WTA. The insulin-like growth factor system and sarcomas. J Pathol 2009; 217:469-82. [PMID: 19148905 DOI: 10.1002/path.2499] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Sarcomas are a diverse group of malignant mesenchymal tumours arising from bone and soft tissues. The identification of critical cellular signalling pathways in sarcomas is an important issue for the development of new targeted therapies. This review highlights the experimental and clinical evidence supporting the role of the insulin-like growth factor (IGF) signalling system in the cellular transformation and progression of several types of sarcoma, including rhabdomyosarcoma, synovial sarcoma, leiomyosarcoma, Ewing's sarcoma and osteosarcoma. Preclinical data suggest that the IGF system could be a promising target for therapy in these sarcomas. Currently, therapies interrupting IGF signalling have been or are being developed. In recent phase 1 clinical studies with humanized monoclonal antibodies directed against IGF receptor type 1 (IGF-1R), objective tumour responses were observed in several patients with Ewing's sarcoma, encouraging further clinical testing in Ewing's sarcoma and other sarcoma (sub)types. Moreover, the occasional occurrence of paraneoplastic hypoglycaemia as a result of the secretion of incompletely processed forms of pro-IGF-II by sarcomas is discussed.
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Affiliation(s)
- Bart Rikhof
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, The Netherlands.
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24
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Lewis VO, Ozawa MG, Deavers MT, Wang G, Shintani T, Arap W, Pasqualini R. The Interleukin-11 Receptor α as a Candidate Ligand-Directed Target in Osteosarcoma: Consistent Data from Cell Lines, Orthotopic Models, and Human Tumor Samples. Cancer Res 2009; 69:1995-9. [DOI: 10.1158/0008-5472.can-08-4845] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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25
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Abstract
The insulin-like growth factor (IGF) family consists of ligands (IGF-I, IGF-II, insulin), several receptors (including IGF-1R), and six binding proteins (IGFBP-1 through IGFBP-6). Members of this family regulate key cellular activities and they also play an important role in the development and progression of both adult and childhood cancers. Binding of a ligand to the receptor leads to its activation, followed by signal transduction along several pathways. In some childhood malignancies, IGF-1R can be activated by endocrine, autocrine, or paracrine mechanisms. Although mutations in IGF-1R have not been identified, this signaling pathway is upregulated in many childhood cancers. These findings have led to the development of a host of IGF-1R signaling modulators that are currently being tested in clinical trials. This review explores the role of IGF-1R in a range of childhood malignancies.
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Affiliation(s)
- Su Young Kim
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA.
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26
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Strategies to explore new approaches in the investigation and treatment of osteosarcoma. Cancer Treat Res 2009; 152:517-28. [PMID: 20213413 DOI: 10.1007/978-1-4419-0284-9_31] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Studies in osteosarcoma over the past 40 years have led to a steady improvement in the overall outcome of patients with osteosarcoma. In the year 2008, we can expect greater than 60% overall survival for newly diagnosed non-metastatic appendicular osteosarcoma. However, to achieve this current outcome, many patients are treated with aggressive cytotoxic chemotherapy and ultimately are not cured, and some patients who would be curable even without this aggressive approach are likely treated and cured. And finally, patients presenting with metastatic disease and those whose tumors recur after standard approaches continue to do very poorly. We believe that in order to continue to make progress in the treatment of this disease, we must achieve two main objectives. Firstly, we must find biomarkers that prospectively and accurately identify newly diagnosed non-metastatic patients who will not be cured with current modalities. We hope that the achievement of this goal will allow for innovative clinical studies in this high-risk population while not jeopardizing those patients who currently are cured using the available treatment approaches, and ultimately accelerate progress toward curing more patients. Secondly, we must develop entirely new approaches to the treatment of metastatic and recurrent osteosarcoma. Our approach has been to develop models of highly aggressive and less aggressive osteosarcoma, and to use these models to identify genetic alterations and signaling pathways that distinguish the two phenotypic behaviors. We have identified plasma membrane-cytoskeletal linker protein, ezrin, as one pathway that identifies aggressive biological behavior in mouse and dog osteosarcoma. Using ezrin as the initial discriminator, we have high ezrin expression to activation of mTOR signaling, suggesting a possible novel target for therapy of aggressive osteosarcoma. We have also linked beta4 integrin signaling to metastatic behavior that also appears to be linked to mTOR signaling. Most recently, we have identified a critical relationship between mTOR signaling and the IGF I signaling pathway that may help point the way to combination targeting therapy aimed at blocking both mTOR and IGF signaling in these tumors. Finally, we have proposed a novel clinical trial design to begin to test agents targeted at recurrent, metastatic disease, and this also will be discussed.
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27
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Abstract
Osteosarcoma is the most common malignant primary bone tumor in children and adolescents. Current optimal treatment for osteosarcoma consists of multi-agent chemotherapy and aggressive surgical resection of all sites of disease involvement. The current national and international cooperative trial for patients with newly diagnosed osteosarcoma builds upon the backbone of cisplatin, doxorubicin, and methotrexate. This protocol is designed to clarify whether (i) the addition of ifosfamide and etoposide to postoperative chemotherapy with cisplatin, doxorubicin, and methotrexate improves the event-free survival and overall survival for patients with resectable osteosarcoma and a poor histologic response to 10 weeks of preoperative chemotherapy; and (ii) the addition of pegylated interferon-alpha-2b as maintenance therapy after postoperative chemotherapy with cisplatin, doxorubicin, and methotrexate improves the event-free survival and overall survival for patients with resectable osteosarcoma and a good histologic response to 10 weeks of preoperative chemotherapy. However, the optimal treatment strategy (or strategies) for patients with relapsed or metastatic disease has yet to be defined. This remains one of the persistent challenges in the treatment of osteosarcoma. Recent therapeutic advances have focused on circumventing chemotherapy resistance mechanisms, incorporation of non-classical agents into upfront therapy, targeting of the tumor micro-environment, and investigating the role of novel delivery mechanisms. In patients with localized disease the 5-year survival rate is at least 70%; patients with metastatic or recurrent disease have <20% chance of long-term survival despite aggressive therapies. These figures have changed little in the past 2 decades. This review focuses on the current therapy for osteosarcoma, and highlights emerging strategies that will hopefully change the outlook for patients with this disease.
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Affiliation(s)
- Alexander J Chou
- Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, New York, USA
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28
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Sakamoto A, Iwamoto Y. Current status and perspectives regarding the treatment of osteo-sarcoma: chemotherapy. Rev Recent Clin Trials 2008; 3:228-31. [PMID: 18782081 PMCID: PMC2778092 DOI: 10.2174/157488708785700267] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Osteosarcoma is the most common primary bone tumor in childhood and adolescence. The use of combination chemotherapy and surgery enables long-term survival in approximately 60-70% of cases. However, the necessity for surgery, the poor prognosis of patients with metastatic or recurrent disease (long-term survival in only about 20% of cases), and the lack of establishment of second-line chemotherapy suggest that improvements in chemotherapy are desperately needed. Currently, in an effort to extend the protocol with the chemotherapy drugs that already exist, high-dose chemotherapy with/without autologous peripheral blood stem cell transplantation, and tumor-targeted drug delivery systems are under investigation. Future drug developments will no doubt lie in the direction of immunotherapy and anti-angiogenic therapy, as well as the use of cytotoxic drugs. Identifying the genes and signal transduction pathways responsible for the development of osteosarcoma or for the occurrence of malignancy in cases of osteosarcoma will undoubtedly lead to the identification of pathway-specific agents, or possible gene therapy. Furthermore, as increased light is shed on the character of osetoblastic differentiation in osteosarcoma, this will certainly give rise to new treatments utilizing differentiation therapy. This article reviews the current status and perspectives regarding the treatment of osteosarcoma in terms of chemotherapy.
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Affiliation(s)
- Akio Sakamoto
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Higashi-ku, Maidashi, Fukuoka, 812-8582, Japan.
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Detection of somatostatin receptors in human osteosarcoma. World J Surg Oncol 2008; 6:99. [PMID: 18783595 PMCID: PMC2546404 DOI: 10.1186/1477-7819-6-99] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Accepted: 09/10/2008] [Indexed: 11/10/2022] Open
Abstract
Background The location of osteosarcoma in the metaphysis as well as the age of the patients during the most rapid tumour growth suggest that factors related to skeletal growth are involved in the pathogenesis of this tumour. In this aspect this study aims to detect somatostatin receptors in human osteosarcomas and correlate this finding with the clinical outcome of the tumour. Patients and methods Immunohistochemical staining for the presence of somatostatin receptors as well as overall survival and disease free survival rates were retrospectively studied in twenty-nine osteosarcoma patients. Results Four osteosarcomas with several aggressive biologic behaviour expressed somatostatin receptors. In these four young patients the event free rate was 0% and the overall survival rate was 50% at 4, 3 years. In contrast the event free survival rate of the twenty-five patients with negative somatostatin receptor status was 72% with an overall survival rate of 76% at 4,3 years. Conclusion The present study demonstrates the existence of somatostatin receptors in human osteosarcoma. Tumours expressing somatostatin receptors seemed to be aggressive with a very low disease free and overall survival rate compared to osteosarcoma with negative receptor status.
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Kvols LK, Woltering EA. Role of somatostatin analogs in the clinical management of non-neuroendocrine solid tumors. Anticancer Drugs 2007; 17:601-8. [PMID: 16917205 DOI: 10.1097/01.cad.0000210335.95828.ed] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The somatostatin analogs octreotide, lanreotide and RC-160 (vapreotide) are known to have direct and indirect antitumor effects. Direct effects include the arrest of tumor growth and stimulation of apoptosis, resulting in tumor shrinkage. Indirect antiproliferative effects may occur through antiangiogenesis, immunomodulatory effects and the suppression of tumor-stimulating growth factors. With a safety profile of somatostatin analogs established over 20 years of clinical use in the treatment of neuroendocrine tumors, somatostatin analogs are attractive therapeutic options for patients with non-neuroendocrine tumors. In early clinical trials of somatostatin analogs, however, some cancer patients responded well, while others showed a lack of benefit. This variability in clinical response may reflect the selective binding affinities of octreotide, lanreotide and RC-160, which bind with high affinity to just two of the five different somatostatin receptor subtypes. Treatment response may therefore depend on the specific receptor subtype(s) present in the tumor, the relative proportion of receptor(s) expressed on the tumor cell surface and the absolute quantity of each receptor subtype. Greater understanding of the role of somatostatin receptors, their binding affinities and modes of action has led to increased research into the use of somatostatin analogs, particularly octreotide, in cancer treatment as monotherapies, in combination with hormonal treatments and cytotoxic therapies, and in both adjuvant and neoadjuvant settings. A review of the literature suggests that the antitumor potential of somatostatin analogs should be investigated further and additional studies might determine how these analogs can best be used to improve the treatment of patients with non-neuroendocrine tumors.
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Affiliation(s)
- Larry K Kvols
- Inter Disciplinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida 33612, USA.
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31
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Longhi A, Errani C, De Paolis M, Mercuri M, Bacci G. Primary bone osteosarcoma in the pediatric age: State of the art. Cancer Treat Rev 2006; 32:423-36. [PMID: 16860938 DOI: 10.1016/j.ctrv.2006.05.005] [Citation(s) in RCA: 447] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Revised: 05/30/2006] [Accepted: 05/31/2006] [Indexed: 01/11/2023]
Abstract
The current combination treatment, chemotherapy and surgery, has significantly improved the cure rate and the survival rate of primary bone osteosarcoma. The 5-year survival rate has increased in the last 30 years from 10% to 70%. Even in patients with poor prognosis, such as those with metastases at diagnosis, the 5-year survival rate has reached 20-30% due to chemotherapy and the surgical removal of metastases and primary tumor. However, the most effective drugs are still the same as those employed over the last 20 years as front line neoadjuvant or adjuvant chemotherapy: Doxorubicin, Cisplatin, Methotrexate, Ifosfamide. No standard, second line therapy exists for those who relapse. At relapse, due to the lack of new non-cross-resistant drugs, surgery is still the main option when feasible. Other drugs have been employed in relapsed patients with poor results. This article reviews the state of the art of treatment for bone osteosarcoma in the pediatric age.
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Affiliation(s)
- Alessandra Longhi
- Chemotherapy Surgery of the Musculoskeletal, Oncology Department at Rizzoli Orthopaedic Institute, Bologna, Italy.
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32
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33
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Chou AJ, Gorlick R. Chemotherapy resistance in osteosarcoma: current challenges and future directions. Expert Rev Anticancer Ther 2006; 6:1075-85. [PMID: 16831079 DOI: 10.1586/14737140.6.7.1075] [Citation(s) in RCA: 280] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
For patients with osteosarcoma, the use of chemotherapy has improved survival from 11% with surgical resection alone in the 1960s, to 70% by the mid-1980s. However, survival has since plateaued, despite advances in anticancer therapy. Elucidation of the mechanisms of chemoresistance and implementation of strategies to overcome chemoresistance will likely be pivotal to improving survival. In this review, the focus is on the current understanding of the mechanisms of resistance to the most commonly used agents in the treatment of osteosarcoma and the methods employed to overcome chemotherapy resistance.
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Affiliation(s)
- Alexander J Chou
- Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA.
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Abstract
The use of molecular approaches has become part of the standard of care in the management of pediatric cancer patients. Molecular approaches are now included in the initial diagnosis, definition of prognostically distinct patient subgroups, selection of patients for specific therapies, prediction of risk for toxicities to therapy, and monitoring of patients receiving both conventional and novel targeted therapies. This clinical application of molecular medicine has been based on a growing molecular understanding of cancer biology. Studies of pediatric cancers have contributed to this understanding in many ways. We present a model for understanding cancer biology, using specific examples taken from pediatric oncology, and then discuss the application of molecular techniques to the clinical management of pediatric cancer patients.
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Affiliation(s)
- Chand Khanna
- Tumor and Metastasis Biology Section, Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, Rockville and Bethesda, Maryland, USA.
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35
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Abstract
Osteosarcoma is a primary bone malignancy generally affecting the young, with 60% of cases occurring before the age of 25 years and the peak incidence at 15 years. Survival has improved over the past several decades, with non- metastatic disease having an approximately 70% chance of long-term survival. Unfortunately, patients with metastatic disease at diagnosis or those who have recurrent disease have a dismal prognosis, with approximately 20% surviving long term. In this review article we describe several new therapies in development for osteosarcoma. These include immune-based therapies, strategies to inhibit tumor growth, radiotherapy, and the introduction of new chemotherapies and targets.
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Affiliation(s)
- Rajaram Nagarajan
- Pediatric Epidemiology and Clinical Research, University of Minnesota, Mayo Mail Code 484, 420 Delaware Street SE, Minneapolis, MN 55455, USA.
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36
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Ludvigsen E, Stridsberg M, Taylor JE, Culler MD, Oberg K, Janson ET. Subtype selective interactions of somatostatin and somatostatin analogs with sst1, sst2, and sst5 in BON-1 cells. Med Oncol 2005; 21:285-95. [PMID: 15456957 DOI: 10.1385/mo:21:3:285] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2004] [Accepted: 03/24/2004] [Indexed: 01/02/2023]
Abstract
Somatostatin is a polypeptide hormone acting as an inhibitor of pituitary, pancreatic, and gastrointestinal secretion through specific membrane receptors of which five subtypes have been cloned (sst(1-5)). Somatostatin analogs are used in the clinic to treat patients with excessive hormone production due to a neuroendocrine tumor. The aim of this study was to investigate the biological activity of three new somatostatin receptor subtype selective analogs (BIM-23926, sst(1)-selective; BIM-23120, sst(2)-selective; and BIM-23206, sst(5)-selective) in the human neuroendocrine tumor cell line, BON-1, which expresses sst(1), sst(2), and sst(5) natively. Somatostatin-14 and octreotide were used as reference substances. Forskolin-induced cAMP accumulation and chromogranin A (CgA) secretion were inhibited by BIM-23120, BIM-23206, and somatostatin-14 in a dose-dependent manner. Cholecystokinin (CCK-8) stimulated activation of mitogen-activated protein (MAP) kinase was inhibited by BIM-23120 and BIM-23206, while BIM-23926 stimulated the activity. Selective BIM analogs showed a more efficient inhibitory effect on cAMP accumulation, CgA secretion, and MAP kinase activity than octreotide in BON-1 cells. This may be explained by the differences in affinity of the ligand to the receptor or by interaction between different sst subtypes. We conclude that increasing knowledge about sst physiology and expression in malignant disease indicates a need for new analogs that can be incorporated into the therapeutic arsenal.
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Affiliation(s)
- Eva Ludvigsen
- Department of Medical Sciences, University Hospital, 751 85 Uppsala, Sweden
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Bock O, Tessema M, Serinsöz E, von Wasielewski R, Büsche G, Kreipe H. Aberrant expression of insulin-like growth factor-2 (IGF-2) in Philadelphia chromosome negative chronic myeloproliferative disorders. Leuk Res 2004; 28:1145-51. [PMID: 15380337 DOI: 10.1016/j.leukres.2004.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2003] [Accepted: 03/10/2004] [Indexed: 01/06/2023]
Abstract
Philadelphia chromosome negative chronic myeloproliferative disorders (Ph- CMPD) comprise haematopoietic stem cell disorders with currently unknown underlying molecular defect. Insulin-like growth factor 2 (IGF-2) is an imprinted gene that is known to be involved in the regulation of normal cell growth and that is overexpressed by a variety of tumors. The expression of IGF-2 in bone marrow cells is largely unknown. In order to elucidate gene expression level, protein expression pattern, and a potential role of IGF-2 in the pathogenesis of Ph- CMPD, we quantitatively analyzed the expression of the IGF-2 gene in bone marrow cells of 69 cases with Ph- CMPD and 31 control cases by applying real-time RT-PCR. IGF-2 gene expression in idiopathic myelofibrosis (IMF) was significantly increased by up to 11-fold as compared to the control group (P < 0.0001). IMF also expressed higher IGF-2 gene level as compared to essential thrombocythaemia (ET) and polycythaemia vera (PV) (P < 0.0001, P = 0.005, respectively). Paranuclear IGF-2 protein could be demonstrated in IMF, ET, and PV exclusively in megakaryocytes and myeloid progenitor cells in contrast to undetectable IGF-2 protein in control cases. We conclude that overexpression of the IGF-2 gene is a pathogenic feature in IMF. In addition, an abundant translational and post-translational processing could explain the accumulation of IGF-2 protein detectable in all Ph- CMPD entities in contrast to non-neoplastic haematopoiesis. We conclude that IGF-2 represents a new molecular target for evaluation of underlying fundamental pathomechanisms in Ph- CMPD.
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Affiliation(s)
- Oliver Bock
- Institute of Pathology, Medizinische Hochschule Hannover, Carl-Neuberg-Strasse 1, 30625, Germany.
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Ferrari S, Dondi M, Fanti S, Zoboli S, Giacomini S, Mercuri M, Bacci G. Somatostatin receptor (SSTR) scintigraphy in patients with osteosarcoma. Cancer Biother Radiopharm 2004; 18:847-51. [PMID: 14629833 DOI: 10.1089/108497803770418391] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To investigate somatostatin receptors (SSTRs) in primary or metastatic high-grade osteosarcoma, 18 patients (12 without metastases, 4 with synchronous lung, and 2 with metachronous bone metastases) underwent SSTR scintigraphy. After intravenous (i.v.) injection of 200-250 MPq of 111In-pentreotide, images were recorded at 4 and 24 hours. All patients underwent 99mTc-methylene diphosphonate (MDP) bone scan (BS). Scans were interpreted both with qualitative evaluation and with semiquantitative image processing, by means of tumor-to-background ratio modification over time. Primary tumor: SSTR scintigraphy was positive in 12 (75%) patients: 10 (83%) of the 12 nonmetastatic patients, and 2 (50%) of those with synchronous metastases. Metastases: SSTR scintigraphy was positive only in one (17%) of the six patients with metastatic disease. No relation was found between SSTR scintigraphy results and gender, histologic subtype, site, and size of the tumor. After primary chemotherapy, 15 patients underwent surgery of primary tumor; a good histologic response was found in 7 (64%) of the 11 patients with positive SSTR scintigraphy versus 1 (25%) of the 4 patients with negative SSTR scintigraphy. High-grade osteosarcoma exhibits somatostatin receptors, usually detectable in the primary tumor, but not in the metastatic lesions. The different expression of somatostatin receptors observed in primary and metastatic lesions, and in patients with tumors having different chemosensitivity, could indicate a possible relation between somatostatin receptors and biological behavior of the tumor.
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Affiliation(s)
- Stefano Ferrari
- Musculoskeletal Oncology Department of the Istituto Ortopedico Rizzoli, Bologna, Italy.
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Wang CH, Tang CW, Liu CL, Tang LP. Inhibitory effect of octreotide on gastric cancer growth via MAPK pathway. World J Gastroenterol 2003; 9:1904-8. [PMID: 12970873 PMCID: PMC4656641 DOI: 10.3748/wjg.v9.i9.1904] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: Somatostatin and its analogues may suppress the growth of various tumor cells. However, the effect of octreotide on growth of gastric adenocarcinoma is still largely unknown. This study was to explore if octreotide could inhibit the growth of gastric adenocarcinoma and its probable mechanisms.
METHODS: Proliferation of gastric cancer cell line affected by octreotide was determined by 3H-thymidine incorporation. After xenografts of human gastric cancer were implanted orthotopically in stomach, nude mice were administrated octreotide for 8 weeks. The mRNA of somatostatin receptor in the SGC-7901 cells was detected by reverse transcription polymerase chain reaction technique. Extracellular signal-regulated protein kinase and c-Fos in gastric cancer tissues were measured by immunohistochemistry and Western blot. Activator protein-1 binding activity was examined by electrophoretic mobility sift assay.
RESULTS: 3H-thymidine incorporation into SGC-7901 cells was significantly decreased by octreotide in a concentration dependent manner. Either size or weight of tumors treated with octreotide was significantly reduced in vivo. The inhibition rate for tumor was 62.3% in octreotide group. The genes of somatostatin receptors 2 and 3 were expressed in SGC-7901 gastric cancer cell lines. Extracellular signal-regulated protein kinase and c-Fos protein level were decreased in gastric adenocarcinoma treated with octreotide. Moreover, fetal calf serum stimulated activator protein-1 binding activity could be suppressed by octreotide potentially.
CONCLUSION: Inhibition of sequential molecular events in MAPK pathway may interpret the mechanisms underlying the effect of octreotide on the growth of gastric adenocarcinoma.
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Affiliation(s)
- Chun-Hui Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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