101
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Radic-Sarikas B, Tsafou KP, Emdal KB, Papamarkou T, Huber KVM, Mutz C, Toretsky JA, Bennett KL, Olsen JV, Brunak S, Kovar H, Superti-Furga G. Combinatorial Drug Screening Identifies Ewing Sarcoma-specific Sensitivities. Mol Cancer Ther 2017; 16:88-101. [PMID: 28062706 DOI: 10.1158/1535-7163.mct-16-0235] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 10/27/2016] [Accepted: 11/03/2016] [Indexed: 11/16/2022]
Abstract
Improvements in survival for Ewing sarcoma pediatric and adolescent patients have been modest over the past 20 years. Combinations of anticancer agents endure as an option to overcome resistance to single treatments caused by compensatory pathways. Moreover, combinations are thought to lessen any associated adverse side effects through reduced dosing, which is particularly important in childhood tumors. Using a parallel phenotypic combinatorial screening approach of cells derived from three pediatric tumor types, we identified Ewing sarcoma-specific interactions of a diverse set of targeted agents including approved drugs. We were able to retrieve highly synergistic drug combinations specific for Ewing sarcoma and identified signaling processes important for Ewing sarcoma cell proliferation determined by EWS-FLI1 We generated a molecular target profile of PKC412, a multikinase inhibitor with strong synergistic propensity in Ewing sarcoma, revealing its targets in critical Ewing sarcoma signaling routes. Using a multilevel experimental approach including quantitative phosphoproteomics, we analyzed the molecular rationale behind the disease-specific synergistic effect of simultaneous application of PKC412 and IGF1R inhibitors. The mechanism of the drug synergy between these inhibitors is different from the sum of the mechanisms of the single agents. The combination effectively inhibited pathway crosstalk and averted feedback loop repression, in EWS-FLI1-dependent manner. Mol Cancer Ther; 16(1); 88-101. ©2016 AACR.
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MESH Headings
- Animals
- Antigens, CD
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Computational Biology/methods
- Disease Models, Animal
- Drug Discovery
- Drug Evaluation, Preclinical
- Drug Interactions
- Drug Screening Assays, Antitumor
- Humans
- Molecular Targeted Therapy
- Oncogene Proteins, Fusion/antagonists & inhibitors
- Phosphorylation
- Protein Kinase Inhibitors/pharmacology
- Proteomics/methods
- Proto-Oncogene Protein c-fli-1/antagonists & inhibitors
- RNA-Binding Protein EWS/antagonists & inhibitors
- Receptor, IGF Type 1
- Receptor, Insulin/antagonists & inhibitors
- Receptors, Somatomedin/antagonists & inhibitors
- Sarcoma, Ewing/drug therapy
- Sarcoma, Ewing/genetics
- Sarcoma, Ewing/metabolism
- Sarcoma, Ewing/pathology
- Signal Transduction/drug effects
- Staurosporine/analogs & derivatives
- Staurosporine/pharmacology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Branka Radic-Sarikas
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Kalliopi P Tsafou
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
- Department of Oncology, Georgetown University Medical Center, Washington, DC
| | - Kristina B Emdal
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Theodore Papamarkou
- School of Mathematics and Statistics, University of Glasgow, Glasgow, United Kingdom
| | - Kilian V M Huber
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Cornelia Mutz
- Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Jeffrey A Toretsky
- Department of Oncology, Georgetown University Medical Center, Washington, DC
| | - Keiryn L Bennett
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Jesper V Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Brunak
- Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark
| | - Heinrich Kovar
- Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
- Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
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102
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Xu J, Ding R, Xu Y. Effects of long non-coding RNA SPRY4-IT1 on osteosarcoma cell biological behavior. Am J Transl Res 2016; 8:5330-5337. [PMID: 28078006 PMCID: PMC5209486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 11/06/2016] [Indexed: 06/06/2023]
Abstract
Recent findings indicate that long noncoding RNAs (lncRNAs) were dysregulated in many kinds of tumors including osteosarcoma (OS). SPRY4-IT1 has been recently revealed as oncogenic regulator in various cancers, while its clinical value and potential function in OS are still unknown. To investigate the role of SPRY4-IT1 in OS, we evaluated the expression SPRY4-IT1 in OS tissues and cell lines, and investigated the effect of SPRY4-IT1 siRNA on cell proliferation, migration and invasion of OS in vitro. Our result showed that SPRY4-IT1 was upregulated in OS tissues. Further experiments revealed that SPRY4-IT1 knockdown significantly inhibited OS cells proliferation by causing G1 arrest and promoting apoptosis. Furthermore, inhibitory effects of SPRY4-IT1 on cell migration and invasion were partly associated with EMT process. In conclusion, these data suggest that SPRY4-IT1 could be an oncogene for OS, and may be served as a candidate target for new therapies in human OS.
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Affiliation(s)
- Jin Xu
- Department of Orthopedics, Baoshan District Shanghai Integrated Traditional Chinese and Western Medicine HospitalShanghai, China
| | - Ren Ding
- Department of Orthopedics, Baoshan District Shanghai Integrated Traditional Chinese and Western Medicine HospitalShanghai, China
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow UniversitySuzhou, China
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103
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Li P, Zheng X, Shou K, Niu Y, Jian C, Zhao Y, Yi W, Hu X, Yu A. The iron chelator Dp44mT suppresses osteosarcoma's proliferation, invasion and migration: in vitro and in vivo. Am J Transl Res 2016; 8:5370-5385. [PMID: 28078009 PMCID: PMC5209489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 12/08/2016] [Indexed: 06/06/2023]
Abstract
Di-2-pyridylketone-4,4-dimethyl-3-thiosemicarbazone (Dp44mT), the novel iron chelator, has been reported to inhibit the tumorigenesis and progression of various cancer cells, including neuroblastoma, neuroepithelioma and prostate cancer. However, whether Dp44mT has anticancer effects in osteosarcoma is still unknown. Here, we investigated the antitumor action of Dp44mT in osteosarcoma and its underlying mechanisms. A human osteosarcoma 143B cell line in vitro and 143B xenograft in nude mice in vivo were utilized, the anticancer effects of Dp44mT were examined through methods of MTT assay, transwell, wound healing assay, flow cytometry, western blot, immunohistochemistry and H&E staining. We showed that Dp44mT inhibits cell proliferation, invasion and migration in vitro. In addition, flow cytometry further illustrated that Dp44mT suppression of 143B cell proliferation, invasion and migration were partially due to induction of cell apoptosis, cell cycle arrest in S phase and ROS production. Also in vitro and in vivo, the expression levels of Bcl2, Bax, Caspase3, Caspase9, LC3-II, β-catenin and its downstream targets such as C-myc and Cyclin D1 demonstrated that cell apoptosis and autophagy, as well as Wnt/β-catenin pathway were involved in Dp44mT induced osteosarcoma suppression. The Dp44mT inhibition of osteosarcoma was further verified via animal models. The findings indicated that in vivo Dp44mT showed a significant reduction in the 143B xenograft tumor growth and metastasis. In conclusion, our data demonstrated that Dp44mT has effective anticancer capability in osteosarcoma and that may represent a promising treatment strategy for osteosarcoma.
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Affiliation(s)
- Pengcheng Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Xun Zheng
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Kangquan Shou
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
- Molecular Imaging Program at Stanford, Canary Center at Stanford for Cancer Early Detection, Department of Radiology and Bio-X Program, Stanford UniversityStanford, CA, USA
| | - Yahui Niu
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Chao Jian
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
- Department of Biochemistry & Molecular Medicine, UC Davis School of MedicineSacramento 95871, CA, USA
| | - Yong Zhao
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Wanrong Yi
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Xiang Hu
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
| | - Aixi Yu
- Department of Orthopedics, Zhongnan Hospital of Wuhan UniversityWuhan 430071, Hubei, China
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104
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Abstract
Osteosarcoma, a bone cancer most commonly seen in adolescents and young adults, is usually a high-grade malignancy characterized by a very high risk for the development of pulmonary metastases. High-grade osteosarcomas are usually treated by preoperative and postoperative chemotherapy and surgery, with a very limited number of active agents available. Rarer lower-grade variants such as parosteal and periosteal osteosarcoma or low-grade central osteosarcoma are treated by surgery only. Imaging to search for possible metastases focuses on the lung. Computed tomography is the most sensitive method but cannot reliably distinguish small metastases from benign lesions. Advances of local imaging and surgical reconstruction now allow the use of limb-salvage in an ever-increasing proportion of patients. While still troubled by complications, non-invasive endoprosthesis-lengthening mechanisms have led to an increased uptake of limb-salvage, even for young, skeletally immature patients. Radiotherapy is employed when osteosarcomas cannot be removed with clear margins, but very high doses are required, and both proton and carbon-ion radiotherapy are under investigation. Unfortunately, the past 30 years have witnessed few, if any, survival improvements. Novel agents have not led to universally accepted changes of treatment standards. In patients with operable high-grade osteosarcomas, the extent of histological response to preoperative chemotherapy is a significant predictive factor for both local and systemic control. Attempts to improve prognosis by adapting postoperative treatment to response, recently tested in a randomized, prospective setting by the European and American Osteosarcoma Study Group, have not been proven to be beneficial. Many agree that only increased knowledge about osteosarcoma biology will lead to novel, effective treatment approaches and will be able to move the field forward.
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Affiliation(s)
- Stefan S Bielack
- Klinikum Stuttgart - Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin; Pädiatrie 5 (Onkologie, Hämatologie, Immunologie), Kriegsbergstrasse 62, Stuttgart Cancer Center, Germany
| | - Stefanie Hecker-Nolting
- Klinikum Stuttgart - Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin; Pädiatrie 5 (Onkologie, Hämatologie, Immunologie), Kriegsbergstrasse 62, Stuttgart Cancer Center, Germany
| | - Claudia Blattmann
- Klinikum Stuttgart - Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin; Pädiatrie 5 (Onkologie, Hämatologie, Immunologie), Kriegsbergstrasse 62, Stuttgart Cancer Center, Germany
| | - Leo Kager
- St. Anna Children's Hospital, Department of Paediatrics, Medical University Vienna and Children's Cancer Research Institute CCRI, Vienna, Austria
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105
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Wang Y, Yang J, Liu H, Wang X, Zhou Z, Huang Q, Song D, Cai X, Li L, Lin K, Xiao J, Liu P, Zhang Q, Cheng Y. Osteotropic peptide-mediated bone targeting for photothermal treatment of bone tumors. Biomaterials 2016; 114:97-105. [PMID: 27855337 DOI: 10.1016/j.biomaterials.2016.11.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/30/2016] [Accepted: 11/08/2016] [Indexed: 01/03/2023]
Abstract
The treatment of bone tumors is a challenging problem due to the inefficient delivery of therapeutics to bone and the bone microenvironment-associated tumor resistance to chemo- and radiotherapy. Here, we developed a bone-targeted nanoparticle, aspartate octapeptide-modified dendritic platinum-copper alloy nanoparticle (Asp-DPCN), for photothermal therapy (PTT) of bone tumors. Asp-DPCN showed much higher affinity toward hydroxyapatite and bone fragments than the non-targeted DPCN in vitro. Furthermore, Asp-DPCN accumulated more efficiently around bone tumors in vivo, and resulted in a higher temperature in bone tumors during PTT. Finally, Asp-DPCN-mediated PTT not only efficiently depressed the tumor growth but also significantly reduced the osteoclastic bone destruction. Our study developed a promising therapeutic approach for the treatment of bone tumors.
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Affiliation(s)
- Yitong Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Jian Yang
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Hongmei Liu
- Central Laboratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, PR China
| | - Xinyu Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Zhengjie Zhou
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China
| | - Quan Huang
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Dianwen Song
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Xiaopan Cai
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Lin Li
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Kaili Lin
- School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, 200072, PR China
| | - Jianru Xiao
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, 200003, PR China
| | - Peifeng Liu
- Central Laboratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, PR China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, PR China.
| | - Qiang Zhang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China.
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China.
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106
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Li L, Li Y, Zhao J, Fan S, Wang L, Li X. CX-5461 induces autophagy and inhibits tumor growth via mammalian target of rapamycin-related signaling pathways in osteosarcoma. Onco Targets Ther 2016; 9:5985-5997. [PMID: 27729807 PMCID: PMC5047727 DOI: 10.2147/ott.s104513] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Osteosarcoma (OS) is the most common primary bone tumor, but molecular mechanisms of the disease have not been well understood, and treatment of metastatic OS remains a challenge. Rapid ribosomal RNA synthesis in cancer is transcribed by RNA polymerase I, which results in unbridled cell growth. The recent discovery of CX-5461, a selective RNA polymerase I inhibitor, exerted its inhibitory effect of ribosomal RNA synthesis and antiproliferative potency. Here, we demonstrate that CX-5461 induces G2 arrest in the cell cycle and expression of microtubule-associated protein 1 light chain 3 II isoform in OS cell lines. Autophagic vacuoles could be observed in electron microscopy and 3-methyladenine prevented cell death mediated by CX-5461. Moreover, it significantly augmented phosphorylated AMP-Activated Protein Kinases α (p-AMPK α). (Thr172) expression in U2-OS cells and decreased p-Akt (Ser473) expression in MNNG cells, respectively, which repressed their downstream effector, mammalian target of rapamycin. On the other hand, CX-5461 increased p53 accumulation and messenger RNA level of its target genes, p21, MDM2, and Sestrin1/2 in U2-OS cells. Knockdown of p53 expression markedly impaired cell death as well as the expression of light chain 3-II and p21 induced by CX-5461. It also significantly enhanced doxorubicin-mediated cytotoxic effect in vitro and in vivo together with additive expression of p53, p21, and light chain 3-II in U2-OS cells. Our data indicate that CX-5461 might induce autophagy via mammalian target of rapamycin-associated signaling pathways dependent on p53 status and exert p53-dependent synergistic antitumor effect combined with doxorubicin in OS. These results suggest that CX-5461 might be promising in clinical therapy for OS, especially cases harboring wild-type p53.
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Affiliation(s)
- Leiming Li
- Department of Joint Surgery and Sports Medicine, The First Affiliated Hospital
| | - Yan Li
- Department of Spine and Joint Surgery, Sheng Jing Hospital
| | - Jiansong Zhao
- Department of Spine and Joint Surgery, Sheng Jing Hospital
| | - Shuli Fan
- Department of Geriatrics, The First Affiliated Hospital, China Medical University, Shenyang, People's Republic of China
| | - Liguo Wang
- Department of Joint Surgery and Sports Medicine, The First Affiliated Hospital
| | - Xu Li
- Department of Joint Surgery and Sports Medicine, The First Affiliated Hospital
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107
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Mlakar V, Huezo-Diaz Curtis P, Satyanarayana Uppugunduri CR, Krajinovic M, Ansari M. Pharmacogenomics in Pediatric Oncology: Review of Gene-Drug Associations for Clinical Use. Int J Mol Sci 2016; 17:ijms17091502. [PMID: 27618021 PMCID: PMC5037779 DOI: 10.3390/ijms17091502] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/02/2016] [Accepted: 08/15/2016] [Indexed: 02/07/2023] Open
Abstract
During the 3rd congress of the European Society of Pharmacogenomics and Personalised Therapy (ESPT) in Budapest in 2015, a preliminary meeting was held aimed at establishing a pediatric individualized treatment in oncology and hematology committees. The main purpose was to facilitate the transfer and harmonization of pharmacogenetic testing from research into clinics, to bring together basic and translational research and to educate health professionals throughout Europe. The objective of this review was to provide the attendees of the meeting as well as the larger scientific community an insight into the compiled evidence regarding current pharmacogenomics knowledge in pediatric oncology. This preliminary evaluation will help steer the committee’s work and should give the reader an idea at which stage researchers and clinicians are, in terms of personalizing medicine for children with cancer. From the evidence presented here, future recommendations to achieve this goal will also be suggested.
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Affiliation(s)
- Vid Mlakar
- Cansearch Research Laboratory, Geneva University Medical School, Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
| | - Patricia Huezo-Diaz Curtis
- Cansearch Research Laboratory, Geneva University Medical School, Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
| | | | - Maja Krajinovic
- Charles-Bruneau Cancer Center, Centre hospitalier universitaire Sainte-Justine, 4515 Rue de Rouen, Montreal, QC H1V 1H1, Canada.
- Department of Pediatrics, University of Montreal, 2900 Boulevard Edouard-Montpetit, Montreal, QC H3T 1J4, Canada.
- Department of Pharmacology, Faculty of Medicine, University of Montreal, 2900 Boulevard Edouard-Montpetit, Montreal, QC H3T 1J4, Canada.
| | - Marc Ansari
- Cansearch Research Laboratory, Geneva University Medical School, Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
- Pediatric Department, Onco-Hematology Unit, Geneva University Hospital, Rue Willy-Donzé 6, 1205 Geneva, Switzerland.
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108
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Hurley C, McCarville MB, Shulkin BL, Mao S, Wu J, Navid F, Daw NC, Pappo AS, Bishop MW. Comparison of (18) F-FDG-PET-CT and Bone Scintigraphy for Evaluation of Osseous Metastases in Newly Diagnosed and Recurrent Osteosarcoma. Pediatr Blood Cancer 2016; 63:1381-6. [PMID: 27082077 PMCID: PMC5082741 DOI: 10.1002/pbc.26014] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/17/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND Bone scintigraphy (BS) is used to detect osseous metastases in osteosarcoma. (18) F-fluorodeoxyglucose-positron emission tomography-computed tomography ((18) F-FDG-PET-CT) is being increasingly used for staging. We compared the sensitivity, specificity, and diagnostic accuracy of (18) F-FDG-PET-CT and BS for detecting osseous metastases in osteosarcoma. METHODS We retrospectively reviewed 39 patients with osteosarcoma who had paired PET-CT and BS at diagnosis and/or first recurrence from 2003 to 2012. Imaging studies were reviewed by two pediatric imaging specialists who were blinded to results of the opposing modality and reference standard. Reviewers categorized lesions as benign, malignant, or indeterminate. Reference standard for lesion histology was biopsy or clinical follow-up. Diagnostic performance of PET-CT, BS, and combined modalities were determined. RESULTS There were 40 examinations from 39 patients and 65 distant lesions were evaluated. Median age was 12 years (range 5-19 years). Four patients had 15 osseous metastases at diagnosis (two biopsied and 13 clinically), and two had five osseous metastases at recurrence (one biopsied and five clinically). For distant sites, sensitivity, specificity, and diagnostic accuracy were 79%, 89% and 86% for PET-CT, 32%, 96%, and 77% for BS, and 95%, 85%, and 88% for PET-CT/BS combined. Sensitivity of PET-CT was superior to BS (P = 0.035); combined imaging modalities were superior to BS (P < 0.001) but not better than PET-CT alone (P = 0.25). Specificity for BS approached significance compared to combined imaging (P = 0.063). Examination-based analysis yielded similar results between individual and combined imaging modalities. CONCLUSIONS (18) F-FDG-PET-CT demonstrated superior sensitivity over BS for detecting osseous metastases, supporting the use of (18) F-FDG-PET-CT for staging of osteosarcoma.
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Affiliation(s)
- Caitlin Hurley
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN
| | - M. Beth McCarville
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN
| | - Barry L. Shulkin
- Department of Diagnostic Imaging, St. Jude Children’s Research Hospital, Memphis, TN
| | - Shenghua Mao
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, TN
| | - Jianrong Wu
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, TN
| | - Fariba Navid
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Najat C. Daw
- Department of Pediatrics, M.D. Anderson Cancer Center, Houston, TX
| | - Alberto S. Pappo
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Michael W. Bishop
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN
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109
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Interiano RB, Malkan AD, Loh AHP, Hinkle N, Wahid FN, Bahrami A, Mao S, Wu J, Bishop MW, Neel MD, Gold RE, Rao BN, Davidoff AM, Fernandez-Pineda I. Initial diagnostic management of pediatric bone tumors. J Pediatr Surg 2016; 51:981-5. [PMID: 26995522 PMCID: PMC5154299 DOI: 10.1016/j.jpedsurg.2016.02.068] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 02/26/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Osteosarcoma (OS) and the Ewing sarcoma family of tumors (ESFT) are the most common primary pediatric bone malignancies. We sought to assess the diagnostic accuracy of initial tumor biopsies in patients with OS or ESFT at a pediatric cancer center. METHODS All biopsies performed at initial presentation of patients with OS or ESFT at our institution from 2003 to 2012 were retrospectively reviewed. Diagnostic accuracy and incidence of complications were correlated with study variables using logistic regression analysis. RESULTS One hundred forty-two biopsies were performed in 105 patients (median age 13.4years, range: 1.8-23.0), 104 (73.2%) OS and 38 (27.8%) ESFT. Thirty-one (21.8%) were performed on metastatic sites. Eighty-five (76.6%) of 111 primary site biopsies were open procedures, and 26 were percutaneous (23.4%). Primary site biopsies were successful in 94.1% of open and 73.1% of percutaneous procedures. Odds of obtaining a successful diagnostic specimen were 7.8 times higher with open approach (CI: 1.6-36.8). Metastatic site biopsies were successful in 66.7% of percutaneous and 100% of open and thoracoscopic procedures. CONCLUSION Biopsy of metastatic sites was equal to primary site in obtaining diagnostic material with the added benefit of accurate staging, with few adverse events and high diagnostic yield.
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Affiliation(s)
- Rodrigo B Interiano
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Alpin D Malkan
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Amos H P Loh
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Paediatric Surgery, KK Women's and Children's Hospital, Singapore
| | - Nathan Hinkle
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Fazal N Wahid
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Armita Bahrami
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shenghua Mao
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jianrong Wu
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Michael W Bishop
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Michael D Neel
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Robert E Gold
- Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Bhaskar N Rao
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Andrew M Davidoff
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Israel Fernandez-Pineda
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA.
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110
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Genetically engineered pre-microRNA-34a prodrug suppresses orthotopic osteosarcoma xenograft tumor growth via the induction of apoptosis and cell cycle arrest. Sci Rep 2016; 6:26611. [PMID: 27216562 PMCID: PMC4877571 DOI: 10.1038/srep26611] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 05/05/2016] [Indexed: 12/26/2022] Open
Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor in children, and microRNA-34a (miR-34a) replacement therapy represents a new treatment strategy. This study was to define the effectiveness and safety profiles of a novel bioengineered miR-34a prodrug in orthotopic OS xenograft tumor mouse model. Highly purified pre-miR-34a prodrug significantly inhibited the proliferation of human 143B and MG-63 cells in a dose dependent manner and to much greater degrees than controls, which was attributed to induction of apoptosis and G2 cell cycle arrest. Inhibition of OS cell growth and invasion were associated with release of high levels of mature miR-34a from pre-miR-34a prodrug and consequently reduction of protein levels of many miR-34a target genes including SIRT1, BCL2, c-MET, and CDK6. Furthermore, intravenous administration of in vivo-jetPEI formulated miR-34a prodrug significantly reduced OS tumor growth in orthotopic xenograft mouse models. In addition, mouse blood chemistry profiles indicated that therapeutic doses of bioengineered miR-34a prodrug were well tolerated in these animals. The results demonstrated that bioengineered miR-34a prodrug was effective to control OS tumor growth which involved the induction of apoptosis and cell cycle arrest, supporting the development of bioengineered RNAs as a novel class of large molecule therapeutic agents.
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111
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Ge Y, Wang Y, Pang L, Zhang L, Zhai Y, Zhou H. Proliferation, Apoptosis and Invasion effects of mistletoe alkali on human osteosarcoma U2OS in vitro. Int Surg 2016; 101:282-290. [PMID: 27110639 DOI: 10.9738/intsurg-d-15-00131.1] [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] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To evaluate the effects of mistletoe alkali on human Osteosarcoma cells (U2OS) in vitro. SUMMARY OF BACKGROUND DATA Osteosarcoma is the most common primary malignant tumor of bone tumor, although there are a lot of therapies such as surgery, radiotherapy and chemotherapy, its prognosis is still very poor. There is increasing interest in the protective biological function of natural antioxidants contained in Chinese medicinal herbs, which are candidates for the prevention of tumors. Mistletoe alkali is one of the compounds extracted from Viscum coloratum (Komar.) Nakai, one kind of mistletoe, whose extracts contribute to the improvement of the prognosis of patients with malignancies. METHODS The effect of mistletoe alkali on the growth of U2OS cells was compared with 5-FU, using a Cell Counting Kit-8 (CCK-8). The influence of mistletoe alkali on U2OS's proliferation and apoptosis were tested by TUNEL staining and immunocytochemical (ICC) staining of caspase 3 and proliferating cell nuclear antigen (PCNA). Additionally, the invasion ability of U2OS cells was detected using a Boyden chamber trans-well migration assay. RESULTS CCK-8 assays gave an IC50 of 7μg/ml for mistletoe alkali. Compared to 5-FU, mistletoe alkali inhibited U2OS proliferation and induced apoptosis more effectively. The invasion ability of U2OS was also weaker in mistletoe alkali than in 5-FU. CONCLUSIONS Mistletoe alkali significantly inhibited growth and invasion abilities of U2OS cells and induced their apoptosis in vitro. Mistletoe alkali may be a more effective drug for Human Osteosarcoma than the standard chemotherapeutic drug 5-FU.
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Affiliation(s)
- Yan Ge
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yishu Wang
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Lei Pang
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Lihong Zhang
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yingxian Zhai
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Houlan Zhou
- 3 Department of Pathology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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Haveman LM, Breunis WB, Cohen JF, van Dalen EC, Owers EC, Dirksen U, Kremer LCM, Jürgens H, van den Berg H, Merks JHM. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) for detecting metastases of Ewing sarcoma. Hippokratia 2016. [DOI: 10.1002/14651858.cd012133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lianne M Haveman
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Willemijn B Breunis
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Jérémie F Cohen
- Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), Inserm UMR1153, Paris Descartes University; Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé); Paris France
- Academic Medical Center; Department of Clinical Epidemiology, Biostatistics and Bioinformatics; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Elvira C van Dalen
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Emilia C Owers
- Academic Medical Center; Department of Nuclear Medicine; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Uta Dirksen
- Universitätsklinikum Münster; Paediatric Haematology and Oncology; Universitätsklinikum Münster Münster Germany 48149
| | - Leontien CM Kremer
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Heribert Jürgens
- Universitätsklinikum Münster; Paediatric Haematology and Oncology; Universitätsklinikum Münster Münster Germany 48149
| | - Henk van den Berg
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
| | - Johannes HM Merks
- Emma Children's Hospital/Academic Medical Center; Department of Paediatric Oncology; PO Box 22660 Amsterdam Netherlands 1100 DD
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Meazza C, Scanagatta P. Metastatic osteosarcoma: a challenging multidisciplinary treatment. Expert Rev Anticancer Ther 2016; 16:543-56. [PMID: 26999418 DOI: 10.1586/14737140.2016.1168697] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Osteosarcoma is the most common malignant bone tumor, currently treated with pre-and postoperative chemotherapy in association with the surgical removal of the tumor. About 15-20% of patients have evidence of metastases at diagnosis, mostly in the lungs. Patients with metastatic disease still have a very poor prognosis, with approximately 20-30% of long-term survivors, as compared with 65-70% of patients with localized disease. The optimum management of these patients has not been standardized yet due to several patterns of metastatic disease harboring different prognosis. Complete surgical resection of all sites of disease is mandatory and predictive of survival. Patients with multiple sites of disease not amenable to complete surgery removal should be considered for innovative therapeutic approaches because of poor prognosis.
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Affiliation(s)
- Cristina Meazza
- a Pediatric Oncology Unit , Fondazione IRCCS Istituto Nazionale dei Tumori , Milano , Italy
| | - Paolo Scanagatta
- b Division of Thoracic Surgery , Fondazione IRCCS Istituto Nazionale dei Tumori , Milano , Italy
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Hingorani P, Janeway K, Crompton BD, Kadoch C, Mackall CL, Khan J, Shern JF, Schiffman J, Mirabello L, Savage SA, Ladanyi M, Meltzer P, Bult CJ, Adamson PC, Lupo PJ, Mody R, DuBois SG, Parsons DW, Khanna C, Lau C, Hawkins DS, Randall RL, Smith M, Sorensen PH, Plon SE, Skapek SX, Lessnick S, Gorlick R, Reed DR. Current state of pediatric sarcoma biology and opportunities for future discovery: A report from the sarcoma translational research workshop. Cancer Genet 2016; 209:182-94. [PMID: 27132463 DOI: 10.1016/j.cancergen.2016.03.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/23/2016] [Accepted: 03/29/2016] [Indexed: 01/09/2023]
Abstract
Sarcomas are a rare subgroup of pediatric cancers comprised of a variety of bone and soft-tissue tumors. While significant advances have been made in improving outcomes of patients with localized pediatric sarcomas since the addition of systemic chemotherapy to local control many decades ago, outcomes for patients with metastatic and relapsed sarcoma remain poor with few novel therapeutics identified to date. With the advent of new technologies to study cancer genomes, transcriptomes and epigenomes, our understanding of sarcoma biology has improved tremendously in a relatively short period of time. However, much remains to be accomplished in this arena especially with regard to translating all of this new knowledge to the bedside. To this end, a meeting was convened in Philadelphia, PA, on April 18, 2015 sponsored by the QuadW foundation, Children's Oncology Group and CureSearch for Children's Cancer that brought together sarcoma clinicians and scientists from North America to review the current state of pediatric sarcoma biology and ongoing/planned genomics based clinical trials in an effort to identify and bridge knowledge gaps that continue to exist at present. At the conclusion of the workshop, three key objectives that would significantly further our understanding of sarcoma were identified and a proposal was put forward to develop an all-encompassing pediatric sarcoma biology protocol that would address these specific needs. This review summarizes the proceedings of the workshop.
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Affiliation(s)
- Pooja Hingorani
- Center for Cancer and Blood Disorders, Phoenix Children's Hospital, Phoenix, AZ, USA.
| | - Katherine Janeway
- Department of Pediatric Hematology-Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Brian D Crompton
- Department of Pediatric Hematology-Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Cigall Kadoch
- Department of Pediatric Hematology-Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Crystal L Mackall
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Javed Khan
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jack F Shern
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Joshua Schiffman
- Huntsman Cancer Institute & Primary Children's Medical Center, University of Utah, Salt Lake City, UT, USA
| | - Lisa Mirabello
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sharon A Savage
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marc Ladanyi
- Human Oncology and Pathogenesis Program, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Meltzer
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Peter C Adamson
- Division of Clinical Pharmacology & Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Philip J Lupo
- Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Rajen Mody
- Department of Pediatrics, University Of Michigan, Ann Arbor, MI, USA
| | - Steven G DuBois
- Department of Pediatric Hematology-Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - D Williams Parsons
- Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Chand Khanna
- Molecular Oncology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Ching Lau
- Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Douglas S Hawkins
- Seattle Children's Hospital, University of Washington, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - R Lor Randall
- Huntsman Cancer Institute & Primary Children's Medical Center, University of Utah, Salt Lake City, UT, USA
| | | | - Poul H Sorensen
- Department of Pathology, University of British Columbia, Vancouver, BC, Canada; Department of Molecular Oncology, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Sharon E Plon
- Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Stephen X Skapek
- Division of Hematology/Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Stephen Lessnick
- Division of Hematology/ Oncology, Nationwide Children's Hospital, Columbus, OH, USA
| | - Richard Gorlick
- Division of Pediatric Hematology/Oncology, Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Damon R Reed
- Moffitt Cancer Center, Sarcoma Department, Adolescent and Young Adult Program, Tampa, FL, USA
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Town J, Pais H, Harrison S, Stead LF, Bataille C, Bunjobpol W, Zhang J, Rabbitts TH. Exploring the surfaceome of Ewing sarcoma identifies a new and unique therapeutic target. Proc Natl Acad Sci U S A 2016; 113:3603-8. [PMID: 26979953 PMCID: PMC4822608 DOI: 10.1073/pnas.1521251113] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The cell surface proteome of tumors mediates the interface between the transformed cells and the general microenvironment, including interactions with stromal cells in the tumor niche and immune cells such as T cells. In addition, the cell surface proteome of individual cancers defines biomarkers for that tumor type and potential proteins that can be the target of antibody-mediated therapy. We have used next-generation deep RNA sequencing (RNA-seq) coupled to an in-house database of genes encoding cell surface proteins (herein referred to as the surfaceome) as a tool to define a cell surface proteome of Ewing sarcoma compared with progenitor mesenchymal stem cells. This subtractive RNA-seq analysis revealed a specific surfaceome of Ewing and showed unexpectedly that the leucine-rich repeat and Ig domain protein 1 (LINGO1) is expressed in over 90% of Ewing sarcoma tumors, but not expressed in any other somatic tissue apart from the brain. We found that the LINGO1 protein acts as a gateway protein internalizing into the tumor cells when engaged by antibody and can carry antibody conjugated with drugs to kill Ewing sarcoma cells. Therefore, LINGO1 is a new, unique, and specific biomarker and drug target for the treatment of Ewing sarcoma.
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Affiliation(s)
- Jennifer Town
- Medical Research Council Molecular Haematology Unit, Weatherall Institute for Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Helio Pais
- Medical Research Council Molecular Haematology Unit, Weatherall Institute for Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Sally Harrison
- Leeds Institute of Molecular Medicine, St. James's Hospital, Leeds LS9 7TF, United Kingdom
| | - Lucy F Stead
- Leeds Institute of Molecular Medicine, St. James's Hospital, Leeds LS9 7TF, United Kingdom
| | - Carole Bataille
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3AT, United Kingdom
| | - Wilawan Bunjobpol
- Medical Research Council Molecular Haematology Unit, Weatherall Institute for Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Jing Zhang
- Medical Research Council Molecular Haematology Unit, Weatherall Institute for Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Terence H Rabbitts
- Medical Research Council Molecular Haematology Unit, Weatherall Institute for Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom;
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Zhao Y, Tu MJ, Yu YF, Wang WP, Chen QX, Qiu JX, Yu AX, Yu AM. Combination therapy with bioengineered miR-34a prodrug and doxorubicin synergistically suppresses osteosarcoma growth. Biochem Pharmacol 2015; 98:602-13. [PMID: 26518752 PMCID: PMC4725324 DOI: 10.1016/j.bcp.2015.10.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 10/21/2015] [Indexed: 01/07/2023]
Abstract
Osteosarcoma (OS) is the most common form of primary malignant bone tumor and prevalent among children and young adults. Recently we have established a novel approach to bioengineering large quantity of microRNA-34a (miR-34a) prodrug for miRNA replacement therapy. This study is to evaluate combination treatment with miR-34a prodrug and doxorubicin, which may synergistically suppress human OS cell growth via RNA interference and DNA intercalation. Synergistic effects were indeed obvious between miR-34a prodrug and doxorubicin for the suppression of OS cell proliferation, as defined by Chou-Talalay method. The strongest antiproliferative synergism was achieved when both agents were administered simultaneously to the cells at early stage, which was associated with much greater degrees of late apoptosis, necrosis, and G2 cell cycle arrest. Alteration of OS cellular processes and invasion capacity was linked to the reduction of protein levels of miR-34a targeted (proto-)oncogenes including SIRT1, c-MET, and CDK6. Moreover, orthotopic OS xenograft tumor growth was repressed to a significantly greater degree in mouse models when miR-34a prodrug and doxorubicin were co-administered intravenously. In addition, multiple doses of miR-34a prodrug and doxorubicin had no or minimal effects on mouse blood chemistry profiles. The results demonstrate that combination of doxorubicin chemotherapy and miR-34a replacement therapy produces synergistic antiproliferative effects and it is more effective than monotherapy in suppressing OS xenograft tumor growth. These findings support the development of mechanism-based combination therapy to combat OS and bioengineered miR-34a prodrug represents a new natural miRNA agent.
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Affiliation(s)
- Yong Zhao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430070, China; Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Mei-Juan Tu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Yi-Feng Yu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430070, China
| | - Wei-Peng Wang
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Qiu-Xia Chen
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA
| | - Jing-Xin Qiu
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Ai-Xi Yu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430070, China.
| | - Ai-Ming Yu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento, CA 95817, USA.
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117
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Identification of Synergistic, Clinically Achievable, Combination Therapies for Osteosarcoma. Sci Rep 2015; 5:16991. [PMID: 26601688 PMCID: PMC4658502 DOI: 10.1038/srep16991] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/22/2015] [Indexed: 02/07/2023] Open
Abstract
Systemic therapy has improved osteosarcoma event-free and overall survival, but 30–50% of patients originally diagnosed will have progressive or recurrent disease, which is difficult to cure. Osteosarcoma has a complex karyotype, with loss of p53 in the vast majority of cases and an absence of recurrent, targetable pathways. In this study, we explored 54 agents that are clinically approved for other oncologic indications, agents in active clinical development, and others with promising preclinical data in osteosarcoma at clinically achievable concentrations in 5 osteosarcoma cell lines. We found significant single-agent activity of multiple agents and tested 10 drugs in all permutations of two-drug combinations to define synergistic combinations by Chou and Talalay analysis. We then evaluated order of addition to choose the combinations that may be best to translate to the clinic. We conclude that the repurposing of chemotherapeutics in osteosarcoma by using an in vitro system may define novel drug combinations with significant in vivo activity. In particular, combinations of proteasome inhibitors with histone deacetylase inhibitors and ixabepilone and MK1775 demonstrated excellent activity in our assays.
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118
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Owosho AA, Ko E, Rosenberg HI, Yom SK, Antonescu CR, Huryn JM, Estilo CL. Primary Ewing Family of Tumors of the Jaw Has a Better Prognosis Compared to Tumors of Extragnathic Sites. J Oral Maxillofac Surg 2015; 74:973-81. [PMID: 26679553 DOI: 10.1016/j.joms.2015.10.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/22/2015] [Accepted: 10/24/2015] [Indexed: 12/23/2022]
Abstract
PURPOSE Primary Ewing sarcoma of the jaw is rare. The aim of this study was to describe new cases of primary Ewing sarcoma of the jaw and investigate reported prognostic factors of Ewing sarcoma in this series and treatment outcome. MATERIALS AND METHODS Six patients with primary Ewing sarcoma of the jaw were treated at the Memorial Sloan Kettering Cancer Center (MSKCC) from 1992 through 2013. Clinical data, pathology reports, treatment prescribed, treatment regimens, outcome, and follow-up information were reviewed. RESULTS Five of 6 patients were female and 5 cases were in the mandible. No patient presented with metastatic disease at diagnosis. All cases were positive for CD99, and 3 patients with genetic confirmation were positive for EWS-FLI1 fusion or EWSR1 gene rearrangement. All patients received induction multiagent chemotherapy and surgical resection and 2 patients received adjuvant radiotherapy. Total (grade IV) or nearly total (grade III) tumor necrosis in 3 of 5 patients (60%) assessed for histologic response to chemotherapy indicated intense sensitivity. All patients were alive and free of disease, with no history of local recurrence, at a median follow-up period of 6.5 years. CONCLUSION Patients with primary Ewing sarcoma of the jaw have a good prognosis and metastasis is an uncommon occurrence at initial presentation.
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Affiliation(s)
- Adepitan A Owosho
- Dental Oncology Research Fellow, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Eugene Ko
- Former Research Fellow, Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY; Clinical Assistant Professor, School of Dentistry, University of Michigan, Ann Arbor, MI
| | - Haley I Rosenberg
- Research Study Assistant, Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - SaeHee K Yom
- Assistant Attending, Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Cristina R Antonescu
- Attending, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Joseph M Huryn
- Chief, Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Cherry L Estilo
- Attending, Dental Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY.
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119
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Laschi M, Bernardini G, Geminiani M, Ghezzi L, Amato L, Braconi D, Millucci L, Frediani B, Spreafico A, Franchi A, Campanacci D, Capanna R, Santucci A. Establishment of Four New Human Primary Cell Cultures from Chemo-Naïve Italian Osteosarcoma Patients. J Cell Physiol 2015; 230:2718-27. [PMID: 25809010 DOI: 10.1002/jcp.24996] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 03/23/2015] [Indexed: 12/25/2022]
Abstract
Osteosarcoma (OS) is a primary highly malignant tumor of bone, affecting predominately adolescents and young adults between 10 and 20 years of age. OS is characterized by an extremely aggressive clinical course, with a rapid development of metastasis to the lung and distant bones.
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Affiliation(s)
- Marcella Laschi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Giulia Bernardini
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Michela Geminiani
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Lorenzo Ghezzi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Loredana Amato
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Daniela Braconi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Lia Millucci
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Bruno Frediani
- Dipartimento di Scienze Mediche, Chirurgiche e Neuroscienze, Università degli Studi di Siena, Policlinico Le Scotte, Siena, Italy
| | - Adriano Spreafico
- Immunoematologia Trasfusionale, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy
| | - Alessandro Franchi
- Dipartimento di Chirurgia e Medicina Traslazionale, Università degli Studi di Firenze, Firenze, Italy
| | - Domenico Campanacci
- Dipartimento di Ortopedia, Oncologica e Chirurgia Ricostruttiva, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Rodolfo Capanna
- Dipartimento di Ortopedia, Oncologica e Chirurgia Ricostruttiva, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Annalisa Santucci
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
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120
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Scott MC, Sarver AL, Tomiyasu H, Cornax I, Van Etten J, Varshney J, O'Sullivan MG, Subramanian S, Modiano JF. Aberrant Retinoblastoma (RB)-E2F Transcriptional Regulation Defines Molecular Phenotypes of Osteosarcoma. J Biol Chem 2015; 290:28070-28083. [PMID: 26378234 DOI: 10.1074/jbc.m115.679696] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 12/22/2022] Open
Abstract
We previously identified two distinct molecular subtypes of osteosarcoma through gene expression profiling. These subtypes are associated with distinct tumor behavior and clinical outcomes. Here, we describe mechanisms that give rise to these molecular subtypes. Using bioinformatic analyses, we identified a significant association between deregulation of the retinoblastoma (RB)-E2F pathway and the molecular subtype with worse clinical outcomes. Xenotransplantation models recapitulated the corresponding behavior for each osteosarcoma subtype; thus, we used cell lines to validate the role of the RB-E2F pathway in regulating the prognostic gene signature. Ectopic RB resets the patterns of E2F regulated gene expression in cells derived from tumors with worse clinical outcomes (molecular phenotype 2) to those comparable with those observed in cells derived from tumors with less aggressive outcomes (molecular phenotype 1), providing a functional association between RB-E2F dysfunction and altered gene expression in osteosarcoma. DNA methyltransferase and histone deacetylase inhibitors similarly reset the transcriptional state of the molecular phenotype 2 cells from a state associated with RB deficiency to one seen with RB sufficiency. Our data indicate that deregulation of RB-E2F pathway alters the epigenetic landscape and biological behavior of osteosarcoma.
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Affiliation(s)
- Milcah C Scott
- Animal Cancer Care and Research Program; Departments of Veterinary Clinical Sciences; Masonic Cancer Center
| | - Aaron L Sarver
- Animal Cancer Care and Research Program; Departments of Veterinary Clinical Sciences
| | - Hirotaka Tomiyasu
- Animal Cancer Care and Research Program; Departments of Veterinary Clinical Sciences; Masonic Cancer Center
| | - Ingrid Cornax
- Animal Cancer Care and Research Program; Masonic Cancer Center; Veterinary Population Medicine
| | - Jamie Van Etten
- Masonic Cancer Center; Department of Surgery, School of Medicine
| | - Jyotika Varshney
- Animal Cancer Care and Research Program; Department of Surgery, School of Medicine; Veterinary Medicine Graduate Program, College of Veterinary Medicine
| | - M Gerard O'Sullivan
- Animal Cancer Care and Research Program; Masonic Cancer Center; Veterinary Population Medicine
| | - Subbaya Subramanian
- Animal Cancer Care and Research Program; Masonic Cancer Center; Department of Surgery, School of Medicine
| | - Jaime F Modiano
- Animal Cancer Care and Research Program; Departments of Veterinary Clinical Sciences; Masonic Cancer Center; Stem Cell Institute; Center for Immunology, University of Minnesota, Minneapolis, Minnesota 55455.
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FOXO1 inhibits osteosarcoma oncogenesis via Wnt/β-catenin pathway suppression. Oncogenesis 2015; 4:e166. [PMID: 26344693 PMCID: PMC4767937 DOI: 10.1038/oncsis.2015.25] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 06/30/2015] [Accepted: 07/25/2015] [Indexed: 12/11/2022] Open
Abstract
Recent advances have highlighted profound roles of FOXO transcription factors, especially FOXO1, in bone development and remodeling. The regulation of bone development by FOXOs seems to be stage-specific or context dependent. FOXOs promote maintenance and differentiation of early progenitors of the osteoblast lineage and repress proliferation of committed osteoblast precursors; FOXO1 is vital for osteocyte survival. Considering the versatile roles played by FOXOs in bone development and tumorigenesis, it is plausible that FOXO1, the main FOXO in bone with a non-redundant role, might have influence on osteosarcoma (OS) oncogenesis. Indeed, recent results have implicated that FOXO1 has a tumor-suppressing role in OS. In the present study, we found that FOXO1 expression was generally low or absent in OS, with a minority of cases having moderate expression. Whole-genome sequencing (WGS) revealed that the FOXO1 locus was frequently involved in copy number variation and loss of heterozygosity in OS, indicating that chromosomal aberrations might be partially responsible for the heterogeneity in FOXO1 expression. FOXO1 activation in OS cell lines inhibited cancer cell survival, which can be attributed to modulation of target genes, including BIM and repressed Wnt/β-catenin signaling. FOXO1 inhibition promoted cell proliferation, enhanced colony formation and attenuated osteogenic differentiation of OS cell lines. To conclude, our results proved FOXO1 as a tumor suppressor in OS at least partially by suppression of the Wnt/β-catenin pathway.
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Deel MD, Li JJ, Crose LES, Linardic CM. A Review: Molecular Aberrations within Hippo Signaling in Bone and Soft-Tissue Sarcomas. Front Oncol 2015; 5:190. [PMID: 26389076 PMCID: PMC4557106 DOI: 10.3389/fonc.2015.00190] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/10/2015] [Indexed: 12/14/2022] Open
Abstract
The Hippo signaling pathway is an evolutionarily conserved developmental network vital for the regulation of organ size, tissue homeostasis, repair and regeneration, and cell fate. The Hippo pathway has also been shown to have tumor suppressor properties. Hippo transduction involves a series of kinases and scaffolding proteins that are intricately connected to proteins in developmental cascades and in the tissue microenvironment. This network governs the downstream Hippo transcriptional co-activators, YAP and TAZ, which bind to and activate the output of TEADs, as well as other transcription factors responsible for cellular proliferation, self-renewal, differentiation, and survival. Surprisingly, there are few oncogenic mutations within the core components of the Hippo pathway. Instead, dysregulated Hippo signaling is a versatile accomplice to commonly mutated cancer pathways. For example, YAP and TAZ can be activated by oncogenic signaling from other pathways, or serve as co-activators for classical oncogenes. Emerging evidence suggests that Hippo signaling couples cell density and cytoskeletal structural changes to morphogenic signals and conveys a mesenchymal phenotype. While much of Hippo biology has been described in epithelial cell systems, it is clear that dysregulated Hippo signaling also contributes to malignancies of mesenchymal origin. This review will summarize the known molecular alterations within the Hippo pathway in sarcomas and highlight how several pharmacologic compounds have shown activity in modulating Hippo components, providing proof-of-principle that Hippo signaling may be harnessed for therapeutic application in sarcomas.
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Affiliation(s)
- Michael D Deel
- Division of Hematology-Oncology, Department of Pediatrics, Duke University School of Medicine , Durham, NC , USA
| | - Jenny J Li
- Duke University School of Medicine , Durham, NC , USA
| | - Lisa E S Crose
- Division of Hematology-Oncology, Department of Pediatrics, Duke University School of Medicine , Durham, NC , USA
| | - Corinne M Linardic
- Division of Hematology-Oncology, Department of Pediatrics, Duke University School of Medicine , Durham, NC , USA ; Department of Pharmacology and Cancer Biology, Duke University School of Medicine , Durham, NC , USA
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123
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Isakoff MS, Bielack SS, Meltzer P, Gorlick R. Osteosarcoma: Current Treatment and a Collaborative Pathway to Success. J Clin Oncol 2015; 33:3029-35. [PMID: 26304877 DOI: 10.1200/jco.2014.59.4895] [Citation(s) in RCA: 1041] [Impact Index Per Article: 115.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Osteosarcoma is the bone tumor that most commonly affects children, adolescents, and young adults. Before 1970, treatment primarily included surgical resection. However, the introduction of chemotherapy led to a dramatic improvement in prognosis for patients with localized osteosarcoma; long-term survival rates of less than 20% improved to 65% to 70% after the advent of multiagent chemotherapy regimens. Controversy concerning the ideal combination of chemotherapy agents ensued throughout the last quarter of the 20th century because of conflicting and often nonrandomized data. However, large cooperative group studies and international collaboration have demonstrated that the most effective regimens include the combination of high-dose methotrexate, doxorubicin, and cisplatin (MAP). The introduction of biologic agents such as muramyl tripeptide and the use of additional cytotoxic chemotherapy such as ifosfamide have not definitively improved the survival of patients with osteosarcoma. Collaborative efforts to increase understanding of the biology of osteosarcoma and the use of preclinical models to test novel agents will be critical to identify the path toward improving outcomes for patients. Once promising agents are identified, an international infrastructure exists for clinical trials. Herein, biologic, preclinical, and clinical trial efforts will be described along with future international collaborative strategies to improve outcomes for patients who develop this challenging tumor.
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Affiliation(s)
- Michael S Isakoff
- Michael S. Isakoff, Center for Cancer and Blood Disorders, Connecticut Children's Medical Center, Hartford, CT; Stefan S. Bielack, Klinikum Stuttgart, Olgahospital, Stuttgart, Germany; Paul Meltzer, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD; and Richard Gorlick, The Children's Hospital of Montefiore; Bronx, NY
| | - Stefan S Bielack
- Michael S. Isakoff, Center for Cancer and Blood Disorders, Connecticut Children's Medical Center, Hartford, CT; Stefan S. Bielack, Klinikum Stuttgart, Olgahospital, Stuttgart, Germany; Paul Meltzer, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD; and Richard Gorlick, The Children's Hospital of Montefiore; Bronx, NY
| | - Paul Meltzer
- Michael S. Isakoff, Center for Cancer and Blood Disorders, Connecticut Children's Medical Center, Hartford, CT; Stefan S. Bielack, Klinikum Stuttgart, Olgahospital, Stuttgart, Germany; Paul Meltzer, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD; and Richard Gorlick, The Children's Hospital of Montefiore; Bronx, NY
| | - Richard Gorlick
- Michael S. Isakoff, Center for Cancer and Blood Disorders, Connecticut Children's Medical Center, Hartford, CT; Stefan S. Bielack, Klinikum Stuttgart, Olgahospital, Stuttgart, Germany; Paul Meltzer, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD; and Richard Gorlick, The Children's Hospital of Montefiore; Bronx, NY.
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124
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Effinger KE. Survival and Quality of Life Following Treatment for Sarcoma. CURRENT PEDIATRICS REPORTS 2015. [DOI: 10.1007/s40124-015-0074-z] [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: 11/30/2022]
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Barr JS, White JK, Punt SEW, Conrad EU, Ching RP. Effect of simulated early weight bearing on micromotion and pullout strength of uncemented distal femoral stems. Orthopedics 2015; 38:e417-22. [PMID: 25970370 DOI: 10.3928/01477447-20150504-60] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 07/28/2014] [Indexed: 02/03/2023]
Abstract
The effect of simulated early weight bearing on both micromotion and pullout strength of uncemented distal femoral stems was evaluated in this study. The effect of stem endosteal contact and bone quality on implant pullout strength was also analyzed. A randomized matched-pair study was performed using 8 bilateral pairs of fresh human cadaveric femoral specimens. Each specimen pair was dual-energy x-ray absorptiometry scanned, uniformly implanted, fluoroscopically imaged, and randomly assigned to the cycled or uncycled group. The cycled group received 5000 cycles of axial compressive loading (to 700 N) and the contralateral side was not cycled. Micromotion was monitored during cycling and compared with a failure threshold (150 µm), and all implants underwent direct axial distraction (pullout) testing. During cycling, minimal micromotion was observed with an asymptotic decrease in differential motion between the first and last 50 cycles. Both cycled and uncycled groups demonstrated no statistical difference in average pullout force (4888±2124 N vs 4367±1154 N; P=.43). The percentage of cortical contact for each implant was determined from panoramic fluoroscopy images using digital image analysis software. Contact area for the distal third of the stem showed the highest correlation with pullout force and with predicting pullout force. Bone quality did not correlate with pullout force (r(2)=0.367) or stem contact area (r(2)=0.394). In sum, press-fit uncemented femoral stems did not loosen or demonstrate decreased pullout strength with early weight bearing simulated by cyclical axial compressive loading.
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Shaw PH, Reed DR, Yeager N, Zebrack B, Castellino SM, Bleyer A. Adolescent and Young Adult (AYA) Oncology in the United States: A Specialty in Its Late Adolescence. J Pediatr Hematol Oncol 2015; 37:161-9. [PMID: 25757020 DOI: 10.1097/mph.0000000000000318] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Over the last 30 years, it has become apparent that oncology patients ages 15 to 39 have not reaped the same rewards of improved survival that we have seen in younger and older patients. As a result, in 2006 the Adolescent and Young Adult (AYA) Oncology Progress Review Group convened and examined the factors that impact the care of the 70,000 new cases per year (approximately 7% of all new cases) in the United States and published their findings. The reasons for inferior survival gains are of course multiple and include the settings in which patients are cared for, clinical trial enrollment, insurance coverage, varied treatment of sarcomas, varied treatment of acute lymphoblastic leukemia, the psychosocial impact of cancer and cancer survivorship. A new area of a yet-to-be completely defined subspecialty was born out of this meeting: AYA oncology. As a medical community we realized that these patients do not fit neatly into the pediatric nor adult world and, therefore, require a unique approach which many individuals, oncology centers, advocacy groups, and cooperative trial groups have started to address. This group of dedicated providers and advocates has made strides but there is still much work to be done on the local, national, and international level to make up for shortcomings in the medical system and improve outcomes. We review key components of AYA cancer care in 2015 that all providers should be aware of, how far we have come, where this movement is headed, and the obstacles that continue to stand in the way of better cure rates and quality of life after cure for this unique group of patients. Like an adolescent maturing into adulthood, this movement has learned from the past and is focused on moving into the future to achieve its goals.
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Affiliation(s)
- Peter H Shaw
- *Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh School of Medicine, Pittsburgh, PA †Sarcoma Program, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL ‡Division of Pediatric Hematology/Oncology, Nationwide Children's Hospital, The Ohio State University, Columbus, OH §University of Michigan School of Social Work, Ann Arbor, MI ∥Department of Pediatrics, Section on Hematology and Oncology, Wake Forest School of Medicine, Winston-Salem, NC ¶Quality Department, St Charles Health System, Bend, OR
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Oncogenic fusion protein EWS-FLI1 is a network hub that regulates alternative splicing. Proc Natl Acad Sci U S A 2015; 112:E1307-16. [PMID: 25737553 DOI: 10.1073/pnas.1500536112] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The synthesis and processing of mRNA, from transcription to translation initiation, often requires splicing of intragenic material. The final mRNA composition varies based on proteins that modulate splice site selection. EWS-FLI1 is an Ewing sarcoma (ES) oncoprotein with an interactome that we demonstrate to have multiple partners in spliceosomal complexes. We evaluate the effect of EWS-FLI1 on posttranscriptional gene regulation using both exon array and RNA-seq. Genes that potentially regulate oncogenesis, including CLK1, CASP3, PPFIBP1, and TERT, validate as alternatively spliced by EWS-FLI1. In a CLIP-seq experiment, we find that EWS-FLI1 RNA-binding motifs most frequently occur adjacent to intron-exon boundaries. EWS-FLI1 also alters splicing by directly binding to known splicing factors including DDX5, hnRNP K, and PRPF6. Reduction of EWS-FLI1 produces an isoform of γ-TERT that has increased telomerase activity compared with wild-type (WT) TERT. The small molecule YK-4-279 is an inhibitor of EWS-FLI1 oncogenic function that disrupts specific protein interactions, including helicases DDX5 and RNA helicase A (RHA) that alters RNA-splicing ratios. As such, YK-4-279 validates the splicing mechanism of EWS-FLI1, showing alternatively spliced gene patterns that significantly overlap with EWS-FLI1 reduction and WT human mesenchymal stem cells (hMSC). Exon array analysis of 75 ES patient samples shows similar isoform expression patterns to cell line models expressing EWS-FLI1, supporting the clinical relevance of our findings. These experiments establish systemic alternative splicing as an oncogenic process modulated by EWS-FLI1. EWS-FLI1 modulation of mRNA splicing may provide insight into the contribution of splicing toward oncogenesis, and, reciprocally, EWS-FLI1 interactions with splicing proteins may inform the splicing code.
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Ru JY, Cong Y, Kang WB, Yu L, Guo T, Zhao JN. Polymorphisms in TP53 are associated with risk and survival of osteosarcoma in a Chinese population. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:3198-3203. [PMID: 26045840 PMCID: PMC4440149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 02/27/2015] [Indexed: 06/04/2023]
Abstract
Osteosarcoma (OS) is the most frequent histological form of primary bone cancer in adolescence. TP53 is a tumor suppressor gene which is essential for regulating cell division and preventing tumor formation. The purpose of this study is to examine whether genetic mutations in the TP53 gene are associated with OS risk and survival in a Chinese population. Five polymorphisms in the TP53 gene were selected in a case-control study, including 210 OS patients and 420 cancer-free controls. We found that subjects carrying rs12951053 CC genotype and rs1042522 GG genotype were significantly associated with risk of OS [odds ratio (OR)=1.68, 95% confidence intervals (CI): 1.05-2.68; OR=1.89, 95% CI: 1.16-3.07] compared with subjects carrying the common genotypes. Results of haplotype analysis also showed that A-G-G-A-C haplotype (rs12951053, rs1042522, rs8064946, rs9895829 and rs12602273) conferred significant decreased risk of OS (OR=0.37, 95% CI: 0.19-0.72) compared with A-C-G-A-C haplotype. Besides, rs1042522 was an independent prognostic factor for OS with hazard radio (HR)=1.94 (95% CI: 1.03-3.65) in GG genotype than in CC genotype. Our data suggest that genetic mutations in the TP53 gene are associated with risk and survival of OS in Chinese population.
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Affiliation(s)
- Jiang-Ying Ru
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
| | - Yu Cong
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
| | - Wen-Bo Kang
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
| | - Lei Yu
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
| | - Tin Guo
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
| | - Jian-Ning Zhao
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University Nanjing 210002, China
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Lu H, Zhu L, Lian L, Chen M, Shi D, Wang K. Genetic variations in the PRKCG gene and osteosarcoma risk in a Chinese population: a case-control study. Tumour Biol 2015; 36:5241-7. [PMID: 25663494 DOI: 10.1007/s13277-015-3182-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 01/27/2015] [Indexed: 11/24/2022] Open
Abstract
Osteosarcoma is a common malignant tumor, which exists widely in the bone of children and adolescents. Protein kinase C gamma (PRKCG) gene, which encodes γPKC, plays important roles in tumor promotion, cell proliferation, differentiation, and migration. The objective of the present study was to investigate the relationship between PRKCG polymorphisms and the risk of osteosarcoma. Five tag single nucleotide polymorphisms (SNPs) of PRKCG were retrieved from the HapMap database and genotyped by the method of SNapShot in a hospital-based study containing 388 patients and 388 healthy individuals. Odds ratios (ORs) and their 95 % confidence intervals (CIs) were used to evaluate the association SPSS 20.0 statistical software package was used to analyze statistical data. Our results suggested that the T/C variant of rs454006 located in the intron 3 region of PRKCG gene was significantly associated with an increased risk of osteosarcoma (CC vs. TT, OR = 1.91; 95 % CI 1.29-2.85; P = 0.001; CC vs. TT+TC, OR = 2.14, 95 % CI = 1.48-3.09, P = 0.001; C vs. T, OR = 1.32, 95 % CI = 1.08-1.62, P = 0.008). Similarly, the rs3745406 T/C variant can also elevate the risk of osteosarcoma in the dominant model (OR = 1.45, 95 % CI = 1.08-1.96, P = 0.014), homozygous model (OR = 1.68, 95 % CI = 1.10-2.59, P = 0.002), and allelic model (OR = 1.31, 95 % CI = 1.07-1.61, P = 0.009). However, there were no significant differences in genotypes and allele frequencies of rs2547362 (T>C), rs8103851 (C>G), and rs2242245 (T>C) SNPs between osteosarcoma patients and healthy controls. The results showed that carrier of rs454006*C allele and rs3745406*C might elevate the risk of osteosarcoma. Further studies are needed to validate the coalition between PRKCG gene polymorphisms and risk of osteosarcoma relying on a larger population that included the participants in different ethnicity and hospital.
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Affiliation(s)
- Huading Lu
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China,
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Weiss A, Gill J, Goldberg J, Lagmay J, Spraker-Perlman H, Venkatramani R, Reed D. Advances in therapy for pediatric sarcomas. Curr Oncol Rep 2015; 16:395. [PMID: 24894064 DOI: 10.1007/s11912-014-0395-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Pediatric sarcomas are relatively rare malignancies individually. As a group they are typically approached with combination chemotherapies in addition to local control. Fortunately, these malignancies have been approached through careful clinical trial collaboration to define risk groups and appropriately deliver local control measures and systemic therapies. Although local disease is typically approached with curative intent, therapy typically lasts over 6 months and has significant associated morbidities. It is more difficult to cure metastatic disease or induce sustained remissions. In this article, we discuss recent advances in the understanding of the disease process and highlight recent and future cooperative group trials in osteosarcoma, Ewing sarcoma, rhabdomyosarcoma, nonrhabdomyosarcoma soft tissue sarcomas, and desmoid tumor as well as discuss promising therapeutic approaches such as epigenetics and immunotherapy.
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Affiliation(s)
- Aaron Weiss
- Division of Pediatric Hematology-Oncology, Maine Medical Center, 22 Bramhall Street, Portland, ME, 04102, USA,
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Vijayakumar V, Lowery R, Zhang X, Hicks C, Rezeanu L, Barr J, Giles H, Vijayakumar S, Megason G. Pediatric osteosarcoma: a single institution's experience. South Med J 2014; 107:671-5. [PMID: 25365431 DOI: 10.14423/smj.0000000000000187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The aim of the study was to evaluate outcomes with an examination of individual predictors influencing survival at a single institution. METHODS This was a retrospective review of the 28 pediatric osteosarcoma patients diagnosed and studied from 2000 through 2012. Twenty-eight patient charts and imaging studies were reviewed for age, race, sex, location, extent of disease at presentation, imaging results, histology, treatment options, and overall survival. RESULTS Of the 28 patients who were identified, the median age at diagnosis was 14 years. The majority of the patients were male African Americans with the tumor located in the lower long bones and most had conventional osteosarcoma histology. Four patients had metastasis at diagnosis. Of the 28 patients, 16 patients underwent limb salvage surgery, 6 underwent amputation, 4 had biopsy only, 1 had hip disarticulation, and 1 moved out of state and had no information available. All 28 patients received chemotherapy. Four patients received additional radiation therapy. On follow-up, 15 patients were still alive at last clinical contact and 13 died. Of the deceased, the median survival time was 2.3 years. The patient who lived the longest survived 8.3 years. Metastasis at diagnosis was associated with poorer outcome (P = 0.002). The 5-year overall survival rate was 40% (95% confidence interval 18-62) for our entire population of patients. CONCLUSIONS Survival in our patient cohort tended to be at the lower end of the spectrum reported by other contemporary treatment centers of excellence or Surveillance, Epidemiology, and End Results databases probably because of the large number of African American patients with associated poor socioeconomic status. Future studies should be conducted to explore biological and nonbiological factors that may affect the prognosis in this disease.
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Affiliation(s)
- Vani Vijayakumar
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Rachel Lowery
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Xu Zhang
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Chindo Hicks
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Luminita Rezeanu
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Jennifer Barr
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Henry Giles
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Srinivasan Vijayakumar
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
| | - Gail Megason
- From the Department of Radiology, the Division of Hematology Oncology, Department of Pediatrics, the Center of Biostatistics and Bioinformatics, the Cancer Institute, the Department of Pathology, the Department of Orthopedic Surgery, and the Department of Radiation Oncology, University of Mississippi Medical Center, Jackson
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Mazzoni E, Benassi MS, Corallini A, Barbanti-Brodano G, Taronna A, Picci P, Guerra G, D'Agostino A, Trevisiol L, Nocini PF, Casali MV, Barbanti-Brodano G, Martini F, Tognon M. Significant association between human osteosarcoma and simian virus 40. Cancer 2014; 121:708-15. [PMID: 25377935 DOI: 10.1002/cncr.29137] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/14/2014] [Accepted: 10/15/2014] [Indexed: 11/11/2022]
Abstract
BACKGROUND Simian virus 40 (SV40) has been considered to be an oncogenic viral agent in the development of osteosarcoma (OS), which to the authors' knowledge continues to be of unknown etiology. METHODS In the current study, serum samples from patients with OS were investigated with an indirect enzyme-linked immunoadsorbent assay (ELISA) to test for the presence of immunoglobulin G antibodies, which react with SV40 antigens. In ELISA, SV40 antigens were represented by 2 synthetic polypeptides that mimic epitopes of the viral capsid proteins 1 to 3. Additional sera from patients with breast cancer and undifferentiated nasopharyngeal carcinoma as well as healthy subjects were the controls. RESULTS Immunologic results suggested that antibodies that react with SV40 mimotopes were more prevalent (44%) in serum samples from patients with OS compared with healthy subjects (17%). The difference in prevalence between these cohorts was statistically significant (P<.001). It is interesting to note that in the patients with OS, significance indicated the difference between OS versus breast cancer (44% vs 15%; P<.001) and OS versus undifferentiated nasopharyngeal carcinoma (44% vs 25%; P<.05). CONCLUSIONS The data from the current study indicate an association between OS and SV40. These data could be transferred to clinical applications for innovative therapies to address SV40-positive OS.
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Affiliation(s)
- Elisa Mazzoni
- Section of Pathology, Oncology and Experimental Biology, School of Medicine, University of Ferrara, Ferrara, Italy
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Abstract
For the past 30 years, improvements in the survival of patients with osteosarcoma have been mostly incremental. Despite evidence of genomic instability and a high frequency of chromothripsis and kataegis, osteosarcomas carry few recurrent targetable mutations, and trials of targeted agents have been generally disappointing. Bone has a highly specialized immune environment and many immune signalling pathways are important in bone homeostasis. The success of the innate immune stimulant mifamurtide in the adjuvant treatment of non-metastatic osteosarcoma suggests that newer immune-based treatments, such as immune checkpoint inhibitors, may substantially improve disease outcome.
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Affiliation(s)
- Maya Kansara
- 1] Research Division, Peter MacCallum Cancer Centre, Melbourne, 3002, Victoria, Australia. [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, 3010, Victoria, Australia
| | - Michele W Teng
- 1] Immunology in Cancer and Infection Laboratory and Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, 4006, Queensland, Australia. [2] School of Medicine, University of Queensland, Herston, 4006, Queensland, Australia
| | - Mark J Smyth
- 1] Immunology in Cancer and Infection Laboratory and Cancer Immunoregulation and Immunotherapy Laboratory, QIMR Berghofer Medical Research Institute, Herston, 4006, Queensland, Australia. [2] School of Medicine, University of Queensland, Herston, 4006, Queensland, Australia
| | - David M Thomas
- 1] Research Division, Peter MacCallum Cancer Centre, Melbourne, 3002, Victoria, Australia. [2] Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, 3010, Victoria, Australia. [3] The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, 2010, New South Wales, Australia
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Martinez-Velez N, Xipell E, Jauregui P, Zalacain M, Marrodan L, Zandueta C, Vera B, Urquiza L, Sierrasesúmaga L, Julián MS, Toledo G, Fueyo J, Gomez-Manzano C, Torre W, Lecanda F, Patiño-García A, Alonso MM. The oncolytic adenovirus Δ24-RGD in combination with cisplatin exerts a potent anti-osteosarcoma activity. J Bone Miner Res 2014; 29:2287-96. [PMID: 24737304 DOI: 10.1002/jbmr.2253] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 04/01/2014] [Accepted: 04/10/2014] [Indexed: 11/12/2022]
Abstract
Osteosarcoma is the most common malignant bone tumor in children and adolescents. The presence of metastases and the lack of response to conventional treatment are the major adverse prognostic factors. Therefore, there is an urgent need for new treatment strategies that overcome both of these problems. Our purpose was to elucidate whether the use of the oncolytic adenovirus Δ24-RGD alone or in combination with standard chemotherapy would be effective, in vitro and in vivo, against osteosarcoma. Our results showed that Δ24-RGD exerted a potent antitumor effect against osteosarcoma cell lines that was increased by the addition of cisplatin. Δ24-RGD osteosarcoma treatment resulted in autophagy in vitro that was further enhanced when combined with cisplatin. Of importance, administration of Δ24-RGD and/or cisplatin, in novel orthotopic and two lung metastatic models in vivo resulted in a significant reduction of tumor burden meanwhile maintaining a safe toxicity profile. Together, our data underscore the potential of Δ24-RGD to become a realistic therapeutic option for primary and metastatic pediatric osteosarcoma. Moreover, this study warrants a future clinical trial to evaluate the safety and efficacy of Δ24-RGD for this devastating disease.
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Affiliation(s)
- Naiara Martinez-Velez
- Department of Medical Oncology, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain; Department of Pediatrics, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
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Trophic activity of human P2X7 receptor isoforms A and B in osteosarcoma. PLoS One 2014; 9:e107224. [PMID: 25226385 PMCID: PMC4165768 DOI: 10.1371/journal.pone.0107224] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 08/14/2014] [Indexed: 12/13/2022] Open
Abstract
The P2X7 receptor (P2X7R) is attracting increasing attention for its involvement in cancer. Several recent studies have shown a crucial role of P2X7R in tumour cell growth, angiogenesis and invasiveness. In this study, we investigated the role of the two known human P2X7R functional splice variants, the full length P2X7RA and the truncated P2X7RB, in osteosarcoma cell growth. Immunohistochemical analysis of a tissue array of human osteosarcomas showed that forty-four, of a total fifty-four tumours (81.4%), stained positive for both P2X7RA and B, thirty-one (57.4%) were positive using an anti-P2X7RA antibody, whereas fifteen of the total number (27.7%) expressed only P2X7RB. P2X7RB positive tumours showed increased cell density, at the expense of extracellular matrix. The human osteosarcoma cell line Te85, which lacks endogenous P2X7R expression, was stably transfected with either P2X7RA, P2X7RB, or both. Receptor expression was a powerful stimulus for cell growth, the most efficient growth-promoting isoform being P2X7RB alone. Growth stimulation was matched by increased Ca2+ mobilization and enhanced NFATc1 activity. Te85 P2X7RA+B cells presented pore formation as well as spontaneous extracellular ATP release. The ATP release was sustained in all clones by P2X7R agonist (BzATP) and reduced following P2X7R antagonist (A740003) application. BzATP also increased cell growth and activated NFATc1 levels. On the other hand cyclosporin A (CSA) affected both NFATc1 activation and cell growth, definitively linking P2X7R stimulation to NFATc1 and cell proliferation. All transfected clones also showed reduced RANK-L expression, and an overall decreased RANK-L/OPG ratio. Mineralization was increased in Te85 P2X7RA+B cells while it was significantly diminished in Te85 P2X7RB clones, in agreement with immunohistochemical results. In summary, our data show that the majority of human osteosarcomas express P2X7RA and B and suggest that expression of either isoform is differently coupled to cell growth or activity.
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136
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Glucocorticoid receptor DNA binding factor 1 expression and osteosarcoma prognosis. Tumour Biol 2014; 35:12449-58. [PMID: 25185653 DOI: 10.1007/s13277-014-2563-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/26/2014] [Indexed: 12/28/2022] Open
Abstract
Glucocorticoid receptor DNA binding factor 1 (GRF-1) is an important Rho family GTPase-activating protein, and the dysregulation of GRF-1 expression maybe involved in tumor progression. However, the role of GRF-1 expression in the osteosarcoma prognosis has been well less elaborated. Here, we conducted a hospital-based case study, including 247 patients with pathologically confirmed osteosarcoma to evaluate the associations between GRF-1 expression and osteosarcoma prognosis. We found that high GRF-1 expression was correlated with poor outcome of osteosarcoma compared with low GRF-1 expression (the median recurrence-free survival times, 11 months vs 56 months; the median overall survival times, 18 months vs 53 months). Like tumor stage, the GRF-1 expression was an independent prognostic factor influencing the survival of osteosarcoma [hazard ratio values (95 % confidence interval) were 5.39 (3.54-8.20) for recurrence-free survival (RFS) and 6.58 (4.44-9.74) for overall survival (OS), respectively]. Furthermore, the high expression of GRF-1 was significantly associated with larger tumor size, tumor dedifferentiation, and increasing metastasis risk. Functionally, the knockdown of GRF-1 expression inhibited tumor cells proliferation and induced cell apoptosis. These results indicate for the first time that GRF-1 expression may modify osteosarcoma prognosis and may be a potential tumor therapeutic target.
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Knockdown of PTHR1 in osteosarcoma cells decreases invasion and growth and increases tumor differentiation in vivo. Oncogene 2014; 34:2922-33. [PMID: 25043296 DOI: 10.1038/onc.2014.217] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 06/01/2014] [Accepted: 06/13/2014] [Indexed: 12/11/2022]
Abstract
Osteosarcoma (OS) is the most common cancer of bone. Parathyroid hormone (PTH) regulates calcium homeostasis and bone development, while the paracrine/autocrine PTH-related protein (PTHrP) has central roles in endochondral bone formation and bone remodeling. Using a murine OS model, we found that OS cells express PTHrP and the common PTH/PTHrP receptor (PTHR1). To investigate the role of PTHR1 signaling in OS cell behavior, we used shRNA to reduce PTHR1 expression. This only mildly inhibited proliferation in vitro, but markedly reduced invasion through collagen and reduced expression of RANK ligand (RANKL). Administration of PTH(1-34) did not stimulate OS proliferation in vivo but, strikingly, PTHR1 knockdown resulted in a profound growth inhibition and increased differentiation/mineralization of the tumors. Treatment with neutralizing antibody to PTHrP did not recapitulate the knockdown of PTHR1. Consistent with this lack of activity, PTHrP was predominantly intracellular in OS cells. Knockdown of PTHR1 resulted in increased expression of late osteoblast differentiation genes and upregulation of Wnt antagonists. RANKL production was reduced in knockdown tumors, providing for reduced homotypic signaling through the receptor, RANK. Loss of PTHR1 resulted in the coordinated loss of gene signatures associated with the polycomb repressive complex 2 (PRC2). Using Ezh2 inhibitors, we demonstrate that the increased expression of osteoblast maturation markers is in part mediated by the loss of PRC2 activity. Collectively these results demonstrate that PTHR1 signaling is important in maintaining OS proliferation and undifferentiated state. This is in part mediated by intracellular PTHrP and through regulation of the OS epigenome.
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138
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Rho GTPase-activating protein 35 rs1052667 polymorphism and osteosarcoma risk and prognosis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:396947. [PMID: 25136583 PMCID: PMC4124850 DOI: 10.1155/2014/396947] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 05/30/2014] [Accepted: 06/30/2014] [Indexed: 12/20/2022]
Abstract
The Rho GTPase-activating protein 35 (ARHGAP35), an important Rho family GTPase-activating protein, may be associated with tumorigenesis of some tumors. Here, we investigated the relationship between an important polymorphic variant at 3′-UTR of this gene (rs1052667) and osteosarcoma risk and prognosis. This hospital-based case-control study, including 247 osteosarcoma patients and 428 age-, sex-, and race-matched healthy controls, was conducted in Guangxi population. Genotypes were tested using TaqMan PCR technique. We found a significant difference in the frequency of rs1052667 genotypes between cases and controls. Compared with the homozygote of rs1052667 C alleles (rs1052667-CC), the genotypes with rs1052667 T alleles (namely, rs1052667-CT or -TT) increased osteosarcoma risk (odds ratios: 2.41 and 7.35, resp.). Moreover, rs1052667 polymorphism was correlated with such pathological features of osteosarcoma as tumor size, tumor grade, and tumor metastasis. Additionally, this polymorphism also modified the overall survival and recurrence-free survival of osteosarcoma cases. Like tumor grade, ARHGAP35 rs1052667 polymorphism was an independent prognostic factor influencing the survival of osteosarcoma. These results suggest that ARHGAP35 rs1052667 polymorphism may be associated with osteosarcoma risk and prognosis.
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139
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Kager L, Bielack S. [Chemotherapeutic concepts for bone sarcomas]. Unfallchirurg 2014; 117:517-22. [PMID: 24903502 DOI: 10.1007/s00113-013-2473-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Osteosarcoma and Ewing sarcoma are the most common chemosensitive sarcomas of the bone. AIM Development in chemotherapeutic concepts as well as current and future treatment strategies in osteosarcoma and Ewing sarcoma are presented. METHODS A PubMed search for "Osteosarcoma" and "Ewing sarcoma" was performed, and pertinent results were summarized. RESULTS In both osteosarcoma and Ewing sarcoma, outcomes achieved with multimodal treatment concepts combining conventional chemotherapy and local treatment have reached a plateau of about 70% for 5-year survival rates. DISCUSSION Improved insights into the molecular biology and genetics of the diseases as well as insights into the interactions between sarcoma cells and the micro-environment and the immune system are necessary to identify novel therapeutic targets in bone sarcomas. Because of the rarity of the diseases, multinational cooperation is essential to evaluate novel therapies in prospective randomized trials.
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Affiliation(s)
- L Kager
- Abteilung für Kinder- und Jugendheilkunde, St. Anna Kinderspital, Medizinische Universität Wien, Wien, Österreich
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141
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Krzyzankova M, Chovanova S, Chlapek P, Radsetoulal M, Neradil J, Zitterbart K, Sterba J, Veselska R. LOX/COX inhibitors enhance the antineoplastic effects of all-trans retinoic acid in osteosarcoma cell lines. Tumour Biol 2014; 35:7617-27. [DOI: 10.1007/s13277-014-2019-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 04/23/2014] [Indexed: 01/31/2023] Open
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142
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Abstract
Four out of five children diagnosed with cancer can be cured with contemporary cancer therapy. This represents a dramatic improvement since 50 years ago when the cure rate of childhood cancer was <25% in the pre-chemotherapy era. Over the past ten years, while improvement in overall survival (OS) has been marginal, progress in pediatric oncology lies with adopting risk-adapted therapeutic approach. This has been made possible through identifying clinical and biologic prognostic factors with rigorous research and stratifying patients using these risk factors, and subsequently modifying therapy according to risk group assignment. This review provides a perspective for eight distinct pediatric malignancies, in which significant advances in treatment were made in the last decade and are leading to changes in standard of care. This includes four hematologic malignancies [acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma (HL)] and four solid tumors [medulloblastoma (MB), low grade glioma (LGG), neuroblastoma (NB) and Ewing sarcoma (ES)]. Together, they comprise 60% of childhood cancer. Improved patient outcome is not limited to better survival, but encompasses reducing both short and long-term treatment-related complications which is as important as cure, given the majority of childhood cancer patients will become long-term survivors. Risk-adapted approach allows treatment intensification in the high-risk cohort while therapy can be de-escalated in the low-risk to minimize toxicity and late sequelae without compromising survival. Advances in medical research technology have also led to a rapid increase in the understanding of the genetics of childhood cancer in the last decade, facilitating identification of molecular targets that can potentially be exploited for therapeutic benefits. As we move into the era of targeted therapeutics, searching for novel agents that target specific genetic lesions becomes a major research focus. We provide an overview of seven novel agents (bevacizumab, bortezomib, vorinostat, sorafenib, tipifarnib, erlotinib and mTOR inhibitors), which have been most frequently pursued in childhood cancers in the last decade, as well as reporting the progress of clinical trials involving these agents.
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Affiliation(s)
- Federica Saletta
- 1 Children's Cancer Research Unit, Kid's Research Institute, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 2 Oncology Department, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 3 Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Michaela S Seng
- 1 Children's Cancer Research Unit, Kid's Research Institute, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 2 Oncology Department, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 3 Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Loretta M S Lau
- 1 Children's Cancer Research Unit, Kid's Research Institute, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 2 Oncology Department, The Children's Hospital at Westmead, Westmead, NSW, Australia ; 3 Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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143
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Krook MA, Nicholls LA, Scannell CA, Chugh R, Thomas DG, Lawlor ER. Stress-induced CXCR4 promotes migration and invasion of ewing sarcoma. Mol Cancer Res 2014; 12:953-64. [PMID: 24651452 DOI: 10.1158/1541-7786.mcr-13-0668] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
UNLABELLED Ewing sarcoma is the second most common bone cancer in pediatric patients. Although the primary cause of death in Ewing sarcoma is metastasis, the mechanism underlying tumor spread needs to be elucidated. To this end, the role of the CXCR4/SDF-1a chemokine axis as a mediator of Ewing sarcoma metastasis was investigated. CXCR4 expression status was measured in primary tumor specimens by immunohistochemical staining and in multiple cell lines by quantitative reverse transcriptase PCR and flow cytometry. Migration and invasion of CXCR4-positive Ewing sarcoma cells toward CXCL12/SDF-1a were also determined. Interestingly, while CXCR4 status was disparate among Ewing sarcoma cells, ranging from absent to high-level expression, its expression was found to be highly dynamic and responsive to changes in the microenvironment. In particular, upregulation of CXCR4 occurred in cells that were subjected to growth factor deprivation, hypoxia, and space constraints. This upregulation of CXCR4 was rapidly reversed upon removal of the offending cellular stress conditions. Functionally, CXCR4-positive cells migrated and invaded toward an SDF-1a gradient and these aggressive properties were impeded by both the CXCR4 small-molecule inhibitor AMD3100, and by knockdown of CXCR4. In addition, CXCR4-dependent migration and invasion were inhibited by small-molecule inhibitors of Cdc42 and Rac1, mechanistically implicating these Rho-GTPases as downstream mediators of the CXCR4-dependent phenotype. IMPLICATIONS This study reveals the highly plastic and dynamic nature of CXCR4 expression in Ewing sarcoma and supports a model in which stress-induced upregulation of CXCR4 contributes to tumor metastasis to lung and bone marrow, which express high levels of SDF-1a.
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Affiliation(s)
- Melanie A Krook
- Authors' Affiliations: Departments of Pediatrics and Communicable Diseases
| | - Lauren A Nicholls
- Authors' Affiliations: Departments of Pediatrics and Communicable Diseases
| | | | | | | | - Elizabeth R Lawlor
- Authors' Affiliations: Departments of Pediatrics and Communicable Diseases, Pathology, University of Michigan, Ann Arbor, Michigan
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Wan Y, Zhao W, Jiang Y, Liu D, Meng G, Cai Y. β-catenin is a valuable marker for differential diagnosis of osteoblastoma and osteosarcoma. Hum Pathol 2014; 45:1459-65. [PMID: 24746516 DOI: 10.1016/j.humpath.2014.02.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 02/16/2014] [Accepted: 02/28/2014] [Indexed: 11/17/2022]
Abstract
Osteoblastoma (OB) and osteosarcoma (OS) are 2 bone tumors that predominantly affect young adults. The clinical management of OS differs significantly from that of OB, and thus, accurate diagnosis of OB and OS is critical in determining appropriate treatment modality. However, in certain cases, OS significantly overlaps with OB in clinical and radiographic characteristics, and therefore, the differential diagnosis of OB and OS can be difficult, especially when biopsy material is insufficient. To date, there have been few reports on markers for differential diagnosis of OB and OS. We have previously shown that the Wnt/β-catenin pathway is inactivated in OS. In this study, we aimed to investigate whether the cellular distribution pattern of β-catenin is a potential marker for the differential diagnosis of OB and OS. Immunohistochemical staining was studied in 17 OB samples (21 biopsies; 17 primary and 4 recurrent) and 37 OS samples with complete follow-up information. Moderate-to-strong nuclear β-catenin staining was found in all OB specimens (17/17). In contrast, positive staining of β-catenin was found in the cytoplasm and/or membrane but not the nucleus in all 32 cases of nonchondroblastic OS (32/32) and the classic OS component in chondroblastic OS (5/5). The only positive nuclear β-catenin staining detected in OS biopsies was in chondroblastic OS cells (5/5). In summary, our results indicate that, in addition to conventional histopathologic evaluation, cellular distribution of β-catenin may be used as a valuable marker in the differential diagnosis of OB and OS. Nuclear β-catenin staining strongly suggests OB, whereas cytoplasmic/membranous staining of β-catenin suggests OS.
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Affiliation(s)
- Yang Wan
- Department of Pathology, School of Medicine, Anhui University, Hefei, 230032, PR China
| | - Wendi Zhao
- Department of Pathology, School of Medicine, Anhui University, Hefei, 230032, PR China
| | - Yan Jiang
- Department of Pathology, School of Medicine, Anhui University, Hefei, 230032, PR China
| | - Debao Liu
- Department of Orthopedics, the First Affiliated Hospital, Anhui University, Hefei, 230032, PR China
| | - Gang Meng
- Department of Pathology, School of Medicine, Anhui University, Hefei, 230032, PR China
| | - Yongping Cai
- Department of Pathology, School of Medicine, Anhui University, Hefei, 230032, PR China.
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Comparative evaluation of strategies for quantifying signaling pathway proteins in Ewing sarcoma. Appl Immunohistochem Mol Morphol 2014; 22:593-9. [PMID: 24590121 DOI: 10.1097/pai.0b013e3182a8d4bb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Targeted therapies are increasingly being evaluated for patients with Ewing sarcoma (EWS). Optimal strategies for quantifying key signaling proteins in EWS remain unclear. We sought to quantify tumor expression of signaling pathway proteins in EWS using 3 methodologies. A total of 46 blocks of formalin-fixed paraffin-embedded tissue were obtained from 40 patients with EWS. Tumor was evaluated for the expression of proteins in the insulin-like growth factor type 1 receptor (IGF-1R), epithelial growth factor receptor (EGFR), and mTOR pathways using standard immunohistochemical analysis (IHC), automated quantitative analysis (AQUA) immunohistochemical analysis, and mass spectrometry quantification. The mean age at diagnosis was 14 years (range, 1 to 49 y). About 67.5% were male and 57.5% had localized disease. Samples displayed a wide range of expression by AQUA: mean (range) IGF-1R=10,702 (393 to 14,424); EGFR=2750 (672 to 9798); and phosphatase and tensin homolog (PTEN)=2250 (251 to 6557). Mean IGF-1R expression by AQUA did not differ between standard IHC expression categories (low IHC=11,255; medium IHC=11,070; high IHC=11,023; P=0.98). Mean PTEN expression by AQUA was higher in the medium and high IHC categories (low IHC=1229; medium IHC=2715; high IHC=2940; P=0.064). Only 2 samples expressed EGFR by standard IHC. Mass spectrometry trended toward correlation with standard IHC but did not yield interpretable results in the majority of samples. This study demonstrates that the relative quantification of signaling protein expression in EWS is dependent on the methodology used. Optimization and validation of these tools are necessary before clinical application for risk stratification of patients or measurement of biomarker expression.
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Abstract
PURPOSE OF REVIEW To describe the current advances in immunotherapy and how they can be applied to sarcoma. This review will discuss the recent literature and selected clinical trials. Evidence supporting treatment with immunotherapy alone in sarcoma will be reviewed, as will the potential incorporation of immunotherapy into treatment for sarcoma. RECENT FINDINGS Sarcoma, cancer of the connective tissues, frequently strikes young people, comprising a large percentage of cancer in children and young adults, but may occur at any age. Although molecularly targeted inhibitors are of great interest in treating sarcoma patients, immunotherapy is emerging as a plausible therapeutic modality because of the recent advances in other cancer types that may be translated to sarcoma. The licensing of ipilimumab and sipuleucel-T for cancer, and the remarkable success of immunotherapy for some childhood cancers, suggest a role for immunotherapy in the treatment of tumors like sarcoma. SUMMARY Sarcoma is a disease for which new treatments are needed. Immunotherapies have different mechanisms of action from most current therapies and could work in concert with them. Recent advances in sarcoma biology and cancer immunotherapy suggest that our knowledge of the immune system has reached the point where it can be used to augment both targeted and multimodality therapy for sarcoma.
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Affiliation(s)
- John M Goldberg
- Department of Pediatrics, University of Miami Miller School of Medicine, University of Miami, Miami, Florida, USA.
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147
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Li MM, Ewton AA, Smith JL. Using Cytogenetic Rearrangements for Cancer Prognosis and Treatment (Pharmacogenetics). CURRENT GENETIC MEDICINE REPORTS 2013. [DOI: 10.1007/s40142-013-0011-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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