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Schott CR, Koehne AL, Sayles LC, Young EP, Luck C, Yu K, Lee AG, Breese MR, Leung SG, Xu H, Shah AT, Liu HY, Spillinger A, Behroozfard IH, Marini KD, Dinh PT, Pons Ventura MV, Vanderboon EN, Hazard FK, Cho SJ, Avedian RS, Mohler DG, Zimel M, Wustrack R, Curtis C, Sirota M, Sweet-Cordero EA. Osteosarcoma PDX-Derived Cell Line Models for Preclinical Drug Evaluation Demonstrate Metastasis Inhibition by Dinaciclib through a Genome-Targeted Approach. Clin Cancer Res 2024; 30:849-864. [PMID: 37703185 PMCID: PMC10870121 DOI: 10.1158/1078-0432.ccr-23-0873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 03/26/2023] [Accepted: 08/08/2023] [Indexed: 09/15/2023]
Abstract
PURPOSE Models to study metastatic disease in rare cancers are needed to advance preclinical therapeutics and to gain insight into disease biology. Osteosarcoma is a rare cancer with a complex genomic landscape in which outcomes for patients with metastatic disease are poor. As osteosarcoma genomes are highly heterogeneous, multiple models are needed to fully elucidate key aspects of disease biology and to recapitulate clinically relevant phenotypes. EXPERIMENTAL DESIGN Matched patient samples, patient-derived xenografts (PDX), and PDX-derived cell lines were comprehensively evaluated using whole-genome sequencing and RNA sequencing. The in vivo metastatic phenotype of the PDX-derived cell lines was characterized in both an intravenous and an orthotopic murine model. As a proof-of-concept study, we tested the preclinical effectiveness of a cyclin-dependent kinase inhibitor on the growth of metastatic tumors in an orthotopic amputation model. RESULTS PDXs and PDX-derived cell lines largely maintained the expression profiles of the patient from which they were derived despite the emergence of whole-genome duplication in a subset of cell lines. The cell lines were heterogeneous in their metastatic capacity, and heterogeneous tissue tropism was observed in both intravenous and orthotopic models. Single-agent dinaciclib was effective at dramatically reducing the metastatic burden. CONCLUSIONS The variation in metastasis predilection sites between osteosarcoma PDX-derived cell lines demonstrates their ability to recapitulate the spectrum of the disease observed in patients. We describe here a panel of new osteosarcoma PDX-derived cell lines that we believe will be of wide use to the osteosarcoma research community.
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Affiliation(s)
- Courtney R. Schott
- Department of Pediatrics, University of California San Francisco, San Francisco, California
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Amanda L. Koehne
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Leanne C. Sayles
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Elizabeth P. Young
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Cuyler Luck
- Department of Pediatrics, University of California San Francisco, San Francisco, California
- Bakar Computational Health Sciences Institute, University of California San Francisco, San Francisco, California
| | - Katherine Yu
- Department of Pediatrics, University of California San Francisco, San Francisco, California
- Bakar Computational Health Sciences Institute, University of California San Francisco, San Francisco, California
| | - Alex G. Lee
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Marcus R. Breese
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Stanley G. Leung
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Hang Xu
- Departments of Genetics and Medicine, Stanford University School of Medicine, Stanford University, Stanford, California
| | - Avanthi Tayi Shah
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Heng-Yi Liu
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Aviv Spillinger
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Inge H. Behroozfard
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Kieren D. Marini
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Phuong T. Dinh
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - María V. Pons Ventura
- Department of Pediatrics, University of California San Francisco, San Francisco, California
| | - Emma N. Vanderboon
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Florette K. Hazard
- Department of Pathology, Stanford University School of Medicine, Stanford University, Stanford, California
| | - Soo-Jin Cho
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - Raffi S. Avedian
- Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford University, Stanford, California
| | - David G. Mohler
- Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford University, Stanford, California
| | - Melissa Zimel
- Department of Orthopedic Surgery, University of California San Francisco, San Francisco, California
| | - Rosanna Wustrack
- Department of Orthopedic Surgery, University of California San Francisco, San Francisco, California
| | - Christina Curtis
- Departments of Genetics and Medicine, Stanford University School of Medicine, Stanford University, Stanford, California
| | - Marina Sirota
- Department of Pediatrics, University of California San Francisco, San Francisco, California
- Bakar Computational Health Sciences Institute, University of California San Francisco, San Francisco, California
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Schott CR, Koehne AL, Sayles LC, Young EP, Luck C, Yu K, Lee AG, Breese MR, Leung SG, Xu H, Shah AT, Liu HY, Spillinger A, Behroozfard IH, Marini KD, Dinh PT, Pons Ventura MAV, Vanderboon EN, Hazard FK, Cho SJ, Avedian RS, Mohler DG, Zimel M, Wustrack R, Curtis C, Sirota M, Sweet-Cordero EA. Development and characterization of new patient-derived xenograft (PDX) models of osteosarcoma with distinct metastatic capacities. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.19.524562. [PMID: 36711882 PMCID: PMC9882347 DOI: 10.1101/2023.01.19.524562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Models to study metastatic disease in rare cancers are needed to advance preclinical therapeutics and to gain insight into disease biology, especially for highly aggressive cancers with a propensity for metastatic spread. Osteosarcoma is a rare cancer with a complex genomic landscape in which outcomes for patients with metastatic disease are poor. As osteosarcoma genomes are highly heterogeneous, a large panel of models is needed to fully elucidate key aspects of disease biology and to recapitulate clinically-relevant phenotypes. We describe the development and characterization of osteosarcoma patient-derived xenografts (PDXs) and a panel of PDX-derived cell lines. Matched patient samples, PDXs, and PDX-derived cell lines were comprehensively evaluated using whole genome sequencing and RNA sequencing. PDXs and PDX-derived cell lines largely maintained the expression profiles of the patient from which they were derived despite the emergence of whole-genome duplication (WGD) in a subset of cell lines. These cell line models were heterogeneous in their metastatic capacity and their tissue tropism as observed in both intravenous and orthotopic models. As proof-of-concept study, we used one of these models to test the preclinical effectiveness of a CDK inhibitor on the growth of metastatic tumors in an orthotopic amputation model. Single-agent dinaciclib was effective at dramatically reducing the metastatic burden in this model.
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Talbot LJ, Chabot A, Funk A, Nguyen P, Wagner J, Ross A, Tillman H, Davidoff A, Gottschalk S, DeRenzo C. A Novel Orthotopic Implantation Technique for Osteosarcoma Produces Spontaneous Metastases and Illustrates Dose-Dependent Efficacy of B7-H3-CAR T Cells. Front Immunol 2021; 12:691741. [PMID: 34211478 PMCID: PMC8239305 DOI: 10.3389/fimmu.2021.691741] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/24/2021] [Indexed: 11/28/2022] Open
Abstract
The outcome for metastatic pediatric osteosarcoma (OS) remains poor. Thus, there is an urgent need to develop novel therapies, and immunotherapy with CAR T cells has the potential to meet this challenge. However, there is a lack of preclinical models that mimic salient features of human disease including reliable development of metastatic disease post orthotopic OS cell injection. To overcome this roadblock, and also enable real-time imaging of metastatic disease, we took advantage of LM7 OS cells expressing firefly luciferase (LM7.ffLuc). LM7.ffLuc were implanted in a collagen mesh into the tibia of mice, and mice reliably developed orthotopic tumors and lung metastases as judged by bioluminescence imaging and histopathological analysis. Intratibial implantation also enabled surgical removal by lower leg amputation and monitoring for metastases development post-surgery. We then used this model to evaluate the antitumor activity of CAR T cells targeting B7-H3, an antigen that is expressed in a broad range of solid tumors including OS. B7-H3-CAR T cells had potent antitumor activity in a dose-dependent manner and inhibited the development of pulmonary metastases resulting in a significant survival advantage. In contrast T cells expressing an inactive B7-H3-CAR had no antitumor activity. Using unmodified LM7 cells also enabled us to demonstrate that B7-H3-CAR T cells traffic to orthotopic tumor sites. Hence, we have developed an orthotopic, spontaneously metastasizing OS model. This model may improve our ability not only to predict the safety and efficacy of current and next generation CAR T cell therapies but also other treatment modalities for metastatic OS.
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Affiliation(s)
- Lindsay Jones Talbot
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Ashley Chabot
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Amy Funk
- Department of Veterinary Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Phuong Nguyen
- Department of Bone Marrow Transplant and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Jessica Wagner
- Department of Bone Marrow Transplant and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Aaron Ross
- University of Tennessee Health Sciences School of Medicine, Memphis, TN, United States
| | - Heather Tillman
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Andrew Davidoff
- Department of Surgery, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Stephen Gottschalk
- Department of Bone Marrow Transplant and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Christopher DeRenzo
- Department of Bone Marrow Transplant and Cellular Therapy, St. Jude Children's Research Hospital, Memphis, TN, United States
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Fan TM, Roberts RD, Lizardo MM. Understanding and Modeling Metastasis Biology to Improve Therapeutic Strategies for Combating Osteosarcoma Progression. Front Oncol 2020; 10:13. [PMID: 32082995 PMCID: PMC7006476 DOI: 10.3389/fonc.2020.00013] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Osteosarcoma is a malignant primary tumor of bone, arising from transformed progenitor cells with osteoblastic differentiation and osteoid production. While categorized as a rare tumor, most patients diagnosed with osteosarcoma are adolescents in their second decade of life and underscores the potential for life changing consequences in this vulnerable population. In the setting of localized disease, conventional treatment for osteosarcoma affords a cure rate approaching 70%; however, survival for patients suffering from metastatic disease remain disappointing with only 20% of individuals being alive past 5 years post-diagnosis. In patients with incurable disease, pulmonary metastases remain the leading cause for osteosarcoma-associated mortality; yet identifying new strategies for combating metastatic progression remains at a scientific and clinical impasse, with no significant advancements for the past four decades. While there is resonating clinical urgency for newer and more effective treatment options for managing osteosarcoma metastases, the discovery of druggable targets and development of innovative therapies for inhibiting metastatic progression will require a deeper and more detailed understanding of osteosarcoma metastasis biology. Toward the goal of illuminating the processes involved in cancer metastasis, a convergent science approach inclusive of diverse disciplines spanning the biology and physical science domains can offer novel and synergistic perspectives, inventive, and sophisticated model systems, and disruptive experimental approaches that can accelerate the discovery and characterization of key processes operative during metastatic progression. Through the lens of trans-disciplinary research, the field of comparative oncology is uniquely positioned to advance new discoveries in metastasis biology toward impactful clinical translation through the inclusion of pet dogs diagnosed with metastatic osteosarcoma. Given the spontaneous course of osteosarcoma development in the context of real-time tumor microenvironmental cues and immune mechanisms, pet dogs are distinctively valuable in translational modeling given their faithful recapitulation of metastatic disease progression as occurs in humans. Pet dogs can be leveraged for the exploration of novel therapies that exploit tumor cell vulnerabilities, perturb local microenvironmental cues, and amplify immunologic recognition. In this capacity, pet dogs can serve as valuable corroborative models for realizing the science and best clinical practices necessary for understanding and combating osteosarcoma metastases.
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Affiliation(s)
- Timothy M Fan
- Comparative Oncology Research Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Ryan D Roberts
- Center for Childhood Cancer and Blood Disorders, Abigail Wexner Research Institute at Nationwide Children's Hospital, The James Comprehensive Cancer Center at The Ohio State University, Columbus, OH, United States
| | - Michael M Lizardo
- Poul Sorensen Laboratory, Department of Molecular Oncology, BC Cancer, Part of the Provincial Health Services Authority in British Columbia, Vancouver, BC, Canada
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Schott C, Shah AT, Sweet-Cordero EA. Genomic Complexity of Osteosarcoma and Its Implication for Preclinical and Clinical Targeted Therapies. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1258:1-19. [PMID: 32767231 DOI: 10.1007/978-3-030-43085-6_1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Osteosarcoma is a genomically complex disease characterized by few recurrent single-nucleotide mutations or in-frame fusions. In contrast, structural alterations, including copy number changes, chromothripsis, kataegis, loss of heterozygosity (LOH), and other large-scale genomic alterations, are frequent and widespread across the osteosarcoma genome. These observed structural alterations lead to activation of oncogenes and loss of tumor suppressors which together contribute to oncogenesis. To date, few targeted therapies for osteosarcoma have been identified. It is likely that effectiveness of targeted therapies will vary greatly in subsets of tumors with distinct key driver events. Model systems which can recapitulate the genetic heterogeneity of this disease are needed to test this hypothesis. One possible approach is to use patient-derived xenograft (PDX) models characterized with regards to their similarity to the human tumor samples from which they were derived. Here we review evidence pointing to the genomic complexity of osteosarcoma and how this is reflected in available model systems. We also review the current state of preclinical testing for targeted therapies using these models.
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Affiliation(s)
- Courtney Schott
- Department of Pediatrics, Division of Hematology and Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Avanthi Tayi Shah
- Department of Pediatrics, Division of Hematology and Oncology, University of California San Francisco, San Francisco, CA, USA
| | - E Alejandro Sweet-Cordero
- Department of Pediatrics, Division of Hematology and Oncology, University of California San Francisco, San Francisco, CA, USA.
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Shi K, Wang SL, Shen B, Yu FQ, Weng DF, Lin JH. Clinicopathological and prognostic values of fibronectin and integrin αvβ3 expression in primary osteosarcoma. World J Surg Oncol 2019; 17:23. [PMID: 30691475 PMCID: PMC6350278 DOI: 10.1186/s12957-019-1566-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 01/15/2019] [Indexed: 02/08/2023] Open
Abstract
Background Osteosarcoma is a malignant bone tumor with a high potential for lung metastasis, and the prognosis for patients with metastatic disease is very poor. The interaction between fibronectin (FN) and integrin αvβ3 in soft-tissue sarcoma promotes cell migration, invasion, and lung metastasis. This study aimed to investigate the prognostic significance of FN and αvβ3 in osteosarcoma. Methods Immunohistochemistry and western blotting were used to detect the expression of FN and αvβ3 in 60 osteosarcoma specimens and in 30 osteochondroma specimens. Furthermore, correlations of FN and αvβ3 with the clinicopathological features of osteosarcoma patients were analyzed using the χ2 test and Fisher’s exact test. Disease-free survival and overall survival of osteosarcoma patients were assessed using the Kaplan-Meier method and Cox proportional hazards model. The predictive accuracy of the model was determined by the Harrell concordance index. Results FN (P < 0.05) and αvβ3 (P < 0.05) were overexpressed in osteosarcoma specimens compared with osteochondroma specimens. High FN expression was associated with a poor response to chemotherapy (P = 0.001) and poor disease-free (P < 0.001) and overall (P < 0.001) survival. High expression of αvβ3 was linked to an advanced surgical stage (P = 0.028), a poor response to chemotherapy (P = 0.002), and both poor disease-free survival (P < 0.001) and overall survival (P < 0.001). FN and αvβ3 co-expression were associated with sex (P = 0.011), an advanced surgical stage (P = 0.013), and a poor response to chemotherapy (P = 0.002). Moreover, high expression of both proteins can serve as an independent prognostic value for reduced survival time in osteosarcoma patients. Conclusions The results of this study suggest that FN and αvβ3 expression is associated with an unfavorable clinical outcome of osteosarcoma, and these molecules may constitute attractive therapeutic targets for osteosarcoma treatment. To improve the survival of osteosarcoma patients, further investigations are required to clarify their prognostic values in a larger population. Electronic supplementary material The online version of this article (10.1186/s12957-019-1566-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kai Shi
- Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China
| | - Sheng-Lin Wang
- Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China
| | - Bin Shen
- Faculty of Education, the Chinese University of Hong Kong, Shatin, N.T., 999077, Hong Kong, People's Republic of China
| | - Feng-Qiang Yu
- Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China
| | - Dan-Feng Weng
- Department of Pathology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China
| | - Jian-Hua Lin
- Department of Orthopaedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China. .,Department of Central Laboratory, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, People's Republic of China.
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Micrometastatic Drug Screening Platform Shows Heterogeneous Response to MAP Chemotherapy in Osteosarcoma Cell Lines. Clin Orthop Relat Res 2018; 476:1400-1411. [PMID: 29481344 PMCID: PMC6437591 DOI: 10.1007/s11999.0000000000000059] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Approximately 80% of patients with osteosarcoma harbor subclinical pulmonary micrometastases at diagnosis. Conventional chemotherapy includes methotrexate, doxorubicin, and cisplatin (MAP); however, this regimen and thus overall survival (60%-70%) have remained largely unchanged for 30 years. It therefore is necessary to identify novel therapeutics targeting the metastatic progression of osteosarcoma. QUESTIONS/PURPOSES This laboratory study explored application of osteosarcoma spheroids (sarcospheres) for drug screening with the following purposes: (1) to characterize sarcosphere size; (2) to establish accurate measurement of sarcosphere growth; (3) to confirm sarcosphere uniformity; and (4) to apply the platform to evaluate MAP chemotherapy. METHODS Sarcospheres were first characterized to establish accurate measurement of sarcosphere growth and uniform production. The refined platform then was applied to evaluate MAP chemotherapy to validate its use in drug screening. Sarcospheres were generated from highly metastatic human cell lines (143B, MG-63.3, and LM7) by centrifugation to form three-dimensional aggregates modeling micrometastases. Sarcospheres were matured for 24 hours and then incubated with or without drug from Days 0 to 2. Size was assessed by diameter and volume using brightfield microscopy. Growth was measured by volume and resazurin reduction in viable cells. Sarcosphere uniformity was assessed by diameter and resazurin reduction at Day 0 and the Z' factor, a measure of assay suitability for high-throughput screening, was calculated at Day 2. Sarcospheres were treated with individual MAP agents (0 to 1000 μmol/L) to determine concentrations at which 50% of growth from Days 0 to 2 was inhibited (GIC50). Cell lines resistant to MAP in sarcospheres were treated in monolayer for comparison. RESULTS Sarcosphere diameter and growth from Days 0 to 2 were quantitatively dependent on the number of cells seeded and the cell line used. Accurate measurement of growth occurred after resazurin incubation for 6 hours, without EDTA-mediated permeabilization, and was correlated with the number of cells seeded and sarcosphere volume for 143B (Spearman's r: 0.98; p < 0.001), MG-63.3 (0.99; p < 0.001), and LM7 (0.98; p < 0.001). Sarcospheres met established criteria for screening applications as mean Z' factors were greater than 0.5 for all cell lines. Response to MAP therapy was cell line-dependent, because MG-63.3 and LM7 sarcospheres exhibited greater than 2000-fold resistance to methotrexate (GIC50 = 88 ± 36 μmol/L and 174 ± 16 μmol/L, respectively) compared with the 143B cell line (GIC50 = 0.04 ± 0.01 μmol/L; p < 0.001 for MG-63.3 and LM7). MG-63.3 monolayers were more sensitive to methotrexate (GIC50 = 0.01 ± 0.01 μmol/L; p < 0.001) than MG-63.3 sarcospheres, whereas LM7 monolayers remained chemoresistent (GIC50 not reached). CONCLUSIONS This study developed and validated a drug screening platform for progression of osteosarcoma micrometastases. It also highlights heterogeneity among osteosarcoma cell lines. These findings appear to reflect known patient-to-patient heterogeneity and underscore the importance of evaluating multiple tumor models when testing drugs for the treatment of osteosarcoma. CLINICAL RELEVANCE The described approach is a promising starting point for drug screening in osteosarcoma because it is tailored to evaluate micrometastatic disease. A reliable and rapid method to identify novel therapeutics is critical to improve stagnant outcomes for patients with osteosarcoma.
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Gvozdenovic A, Boro A, Meier D, Bode-Lesniewska B, Born W, Muff R, Fuchs B. Targeting αvβ3 and αvβ5 integrins inhibits pulmonary metastasis in an intratibial xenograft osteosarcoma mouse model. Oncotarget 2018; 7:55141-55154. [PMID: 27409827 PMCID: PMC5342407 DOI: 10.18632/oncotarget.10461] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 06/17/2016] [Indexed: 01/03/2023] Open
Abstract
Osteosarcoma is an aggressive bone cancer that has a high propensity for metastasis to the lungs. Patients with metastatic disease face a very poor prognosis. Therefore, novel therapeutics, efficiently suppressing the metastatic process, are urgently needed. Integrins play a pivotal role in tumor cell adhesion, motility and metastasis. Here, we evaluated αvβ3 and αvβ5 integrin inhibition with cilengitide as a novel metastasis-suppressive therapeutic approach in osteosarcoma. Immunohistochemical analysis of αvβ3 and αvβ5 integrins expression in a tissue microarray of tumor specimens collected from osteosarcoma patients revealed that αvβ5 integrin is mainly found on tumor cells, whereas αvβ3 is predominantly expressed by stromal cells. In vitro functional assays demonstrated that cilengitide dose-dependently inhibited de novo adhesion, provoked detachment and inhibited migration of osteosarcoma cell lines. Cilengitide induced a decline in cell viability, blocked the cell cycle in the G1 phase and caused anoikis by activation of the Hippo pathway. In a xenograft orthotopic mouse model cilengitide minimally affected intratibial primary tumor growth but, importantly, suppressed pulmonary metastasis. The data demonstrate that targeting αvβ3 and αvβ5 integrins in osteosarcoma should be considered as a novel therapeutic option for patients with metastatic disease.
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Affiliation(s)
- Ana Gvozdenovic
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
| | - Aleksandar Boro
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
| | - Daniela Meier
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
| | - Beata Bode-Lesniewska
- Department of Pathology, Institute for Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Walter Born
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
| | - Roman Muff
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
| | - Bruno Fuchs
- Laboratory for Orthopedic Research, Department of Orthopedics, Balgrist University Hospital, Zurich, Switzerland
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Mayr L, Pirker C, Lötsch D, Van Schoonhoven S, Windhager R, Englinger B, Berger W, Kubista B. CD44 drives aggressiveness and chemoresistance of a metastatic human osteosarcoma xenograft model. Oncotarget 2017; 8:114095-114108. [PMID: 29371972 PMCID: PMC5768389 DOI: 10.18632/oncotarget.23125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/28/2017] [Indexed: 12/15/2022] Open
Abstract
Background Osteosarcoma is the most common primary malignant bone tumor with a 5 year survival rate of up to 70%. However, patients with metastatic disease have still a very poor prognosis. Osteosarcoma metastasis models are essential to develop novel treatment strategies for advanced disease. Methods Based on a serial transplantation approach, we have established a U-2 OS osteosarcoma xenograft model with increased metastatic potential and compared it to other metastatic osteosarcoma models from international sources. Subclones with differing invasive potential were compared for genomic gains and losses as well as gene expression changes by several bioinformatic approaches. Based on the acquired results, the effects of a shRNA-mediated CD44 mRNA knockdown on migration, invasion and chemosensitivity were evaluated. Results The CD44 gene was part of an amplified region at chromosome 11p found in both U-2 OS subclones with enhanced metastatic potential but not in parental U-2 OS cells, corresponding with distinct CD44 overexpression. Accordingly, shRNA-mediated CD44 knockdown significantly attenuated osteosarcoma cell migration, invasion, and viability especially in the metastatic subclones of U-2 OS and Saos-2 cells. Metastatic subclones generally were hypersensitive against the integrin inhibitor cilengitide paralleled by alterations in integrin expression pattern following CD44 knock-down. Additionally, attenuation of CD44 expression sensitized these cell models against osteosarcoma chemotherapy with doxorubicin but not methotrexate and cisplatin. Conclusions The osteosarcoma xenograft models with increased metastatic potential developed in this study can be useful for identification of mechanisms driving metastasis and resistance towards clinically used and novel therapeutic regimens.
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Affiliation(s)
- Lisa Mayr
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Christine Pirker
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Daniela Lötsch
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Sushilla Van Schoonhoven
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Reinhard Windhager
- Department of Orthopaedics, Medical University Vienna, 1090 Vienna, Austria
| | - Bernhard Englinger
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Walter Berger
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University Vienna, 1090 Vienna, Austria
| | - Bernd Kubista
- Department of Orthopaedics, Medical University Vienna, 1090 Vienna, Austria
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Mata M, Gerken C, Nguyen P, Krenciute G, Spencer DM, Gottschalk S. Inducible Activation of MyD88 and CD40 in CAR T Cells Results in Controllable and Potent Antitumor Activity in Preclinical Solid Tumor Models. Cancer Discov 2017; 7:1306-1319. [PMID: 28801306 DOI: 10.1158/2159-8290.cd-17-0263] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 07/01/2017] [Accepted: 08/07/2017] [Indexed: 12/11/2022]
Abstract
Adoptive immunotherapy with T cells expressing chimeric antigen receptors (CAR) has had limited success for solid tumors in early-phase clinical studies. We reasoned that introducing into CAR T cells an inducible costimulatory (iCO) molecule consisting of a chemical inducer of dimerization (CID)-binding domain and the MyD88 and CD40 signaling domains would improve and control CAR T-cell activation. In the presence of CID, T cells expressing HER2-CARζ and a MyD88/CD40-based iCO molecule (HER2ζ.iCO T cells) had superior T-cell proliferation, cytokine production, and ability to sequentially kill targets in vitro relative to HER2ζ.iCO T cells without CID and T cells expressing HER2-CAR.CD28ζ. HER2ζ.iCO T cells with CID also significantly improved survival in vivo in two xenograft models. Repeat injections of CID were able to further increase the antitumor activity of HER2ζ.iCO T cells in vivo Thus, expressing MyD88/CD40-based iCO molecules in CAR T cells has the potential to improve the efficacy of CAR T-cell therapy approaches for solid tumors.Significance: Inducible activation of MyD88 and CD40 in CAR T cells with a small-molecule drug not only enhances their effector function, resulting in potent antitumor activity in preclinical solid tumors, but also enables their remote control post infusion. Cancer Discov; 7(11); 1306-19. ©2017 AACR.This article is highlighted in the In This Issue feature, p. 1201.
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Affiliation(s)
- Melinda Mata
- Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Claudia Gerken
- Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Phuong Nguyen
- Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Giedre Krenciute
- Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Baylor College of Medicine, Houston, Texas.,Texas Children's Cancer Center, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - David M Spencer
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas.,Bellicum Pharmaceuticals, Houston, Texas
| | - Stephen Gottschalk
- Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, Baylor College of Medicine, Houston, Texas. .,Texas Children's Cancer Center, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
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11
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Villaverde G, Nairi V, Baeza A, Vallet-Regí M. Double Sequential Encrypted Targeting Sequence: A New Concept for Bone Cancer Treatment. Chemistry 2017; 23:7174-7179. [DOI: 10.1002/chem.201605947] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Gonzalo Villaverde
- Depto. Química Inorgánica y Bioinorgánica; Facultad de Farmacia; Universidad Complutense de Madrid. Plaza Ramon y CajaLs/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Madrid Spain
| | - Valentina Nairi
- Depto. Química Inorgánica y Bioinorgánica; Facultad de Farmacia; Universidad Complutense de Madrid. Plaza Ramon y CajaLs/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Madrid Spain
| | - Alejandro Baeza
- Depto. Química Inorgánica y Bioinorgánica; Facultad de Farmacia; Universidad Complutense de Madrid. Plaza Ramon y CajaLs/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Madrid Spain
| | - María Vallet-Regí
- Depto. Química Inorgánica y Bioinorgánica; Facultad de Farmacia; Universidad Complutense de Madrid. Plaza Ramon y CajaLs/n. Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12 ¡ Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); Madrid Spain
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12
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Shahi MH, York D, Gandour-Edwards R, Withers SS, Holt R, Rebhun RB. BMI1 is expressed in canine osteosarcoma and contributes to cell growth and chemotherapy resistance. PLoS One 2015; 10:e0131006. [PMID: 26110620 PMCID: PMC4482432 DOI: 10.1371/journal.pone.0131006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 05/27/2015] [Indexed: 02/03/2023] Open
Abstract
BMI1, a stem cell factor and member of the polycomb group of genes, has been shown to contribute to growth and chemoresistance of several human malignancies including primary osteosarcoma (OSA). Naturally occurring OSA in the dog represents a large animal model of human OSA, however the potential role of BMI1 in canine primary and metastatic OSA has not been examined. Immunohistochemical staining of canine primary and metastatic OSA tumors revealed strong nuclear expression of BMI1. An identical staining pattern was found in both primary and metastatic human OSA tissues. Canine OSA cell lines (Abrams, Moresco, and D17) expressed high levels of BMI1 compared with canine osteoblasts and knockdown or inhibition of BMI1 by siRNA or by small molecule BMI1-inhibitor PTC-209 demonstrated a role for BMI1 in canine OSA cell growth and resistance to carboplatin and doxorubicin chemotherapy. These findings suggest that inhibition of BMI1 in primary or metastatic OSA may improve response to chemotherapy and that the dog may serve as a large animal model to evaluate such therapy.
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Affiliation(s)
- Mehdi Hayat Shahi
- The Comparative Oncology Laboratory and Center for Companion Animal Health, School of Veterinary Medicine, University of California Davis, Davis, CA, 95616, United States of America
| | - Daniel York
- The Comparative Oncology Laboratory and Center for Companion Animal Health, School of Veterinary Medicine, University of California Davis, Davis, CA, 95616, United States of America
| | - Regina Gandour-Edwards
- The Department of Pathology, Comprehensive Cancer Center, University of California Davis, Davis, California, United States of America
| | - Sita S. Withers
- The Comparative Oncology Laboratory and Center for Companion Animal Health, School of Veterinary Medicine, University of California Davis, Davis, CA, 95616, United States of America
| | - Roseline Holt
- The Comparative Oncology Laboratory and Center for Companion Animal Health, School of Veterinary Medicine, University of California Davis, Davis, CA, 95616, United States of America
| | - Robert B. Rebhun
- The Comparative Oncology Laboratory and Center for Companion Animal Health, School of Veterinary Medicine, University of California Davis, Davis, CA, 95616, United States of America
- * E-mail:
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13
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Zheng Y, Ji S, Czerwinski A, Valenzuela F, Pennington M, Liu S. FITC-conjugated cyclic RGD peptides as fluorescent probes for staining integrin αvβ3/αvβ5 in tumor tissues. Bioconjug Chem 2014; 25:1925-41. [PMID: 25312799 PMCID: PMC4240344 DOI: 10.1021/bc500452y] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
![]()
This study sought to evaluate FITC-conjugated
cyclic RGD peptides
(FITC-RGD2, FITC-3P-RGD2, and FITC-Galacto-RGD2) as fluorescent probes for in vitro assays of integrin αvβ3/αvβ5 expression in tumor tissues. FITC-RGD2, FITC-3P-RGD2, and FITC-Galacto-RGD2 were prepared, and their
integrin αvβ3/αvβ5 binding affinity was determined using the displacement
assay against 125I-echistatin bound to U87MG glioma cells.
IC50 values of FITC-Galacto-RGD2, FITC-3P-RGD2, and FITC-RGD2 were calculated to be 28 ±
8, 32 ± 7, and 89 ± 17 nM, respectively. The integrin αvβ3/αvβ5 binding affinity followed a general trend: FITC-Galacto-RGD2 ∼ FITC-3P-RGD2 > FITC-RGD2.
The xenografted tumor-bearing models were established by subcutaneous
injection of 5 × 106 tumor cells into shoulder flank
(U87MG, A549, HT29, and PC-3) or mammary fat pad (MDA-MB-435) of each
athymic nude mouse. Three to six weeks after inoculation, the tumor
size was 0.1–0.3 g. Tumors were harvested for integrin αvβ3/αvβ5 staining, as well as hematoxylin and eosin (H&E) staining. Six
human carcinoma tissues (colon cancer, pancreatic cancer, lung adenocarcinoma,
squamous cell lung cancer, gastric cancer, and esophageal cancer)
were obtained from recently diagnosed cancer patients. Human carcinoma
slides were deparaffinized in xylene, rehydrated with ethanol, and
then used for integrin αvβ3/αvβ5 staining, as well as H&E staining.
It was found that the tumor staining procedures with FITC-conjugated
cyclic RGD peptides were much simpler than those with the fluorescence-labeled
integrin αvβ3 antibodies. Since
FITC-RGD2, FITC-3P-RGD2, and FITC-Galacto-RGD2 were able to co-localize with the fluorescence-labeled integrin
β3 antibody, their tumor localization and tumor cell
binding are integrin αvβ3-specific.
Quantification of the fluorescent intensity in five xenografted tumors
(U87MG, MDA-MB-435, A549, HT29, and PC-3) and six human carcinoma
tissues revealed an excellent linear relationship between the relative
integrin αvβ3/αvβ5 expression levels determined with FITC-Galacto-RGD2 and those obtained with the fluorescence-labeled anti-human
integrin β3 antibody. There was also an excellent
linear relationship between the tumor uptake (%ID/g) of 99mTc-3P-RGD2 (an integrin αvβ3/αvβ5-targeted radiotracer)
and the relative integrin αvβ3/αvβ5 expression levels from the quantification
of fluorescent intensity in the tumor tissues stained with FITC-Galacto-RGD2. These results suggest that FITC-conjugated cyclic RGD peptides
might be useful to correlate the in vitro findings with the in vivo
imaging data from an integrin αvβ3/αvβ5-targeted radiotracer. The
results from this study clearly showed that the FITC-conjugated cyclic
RGD peptides (particularly FITC-3P-RGD2 and FITC-Galacto-RGD2) are useful fluorescent probes for assaying relative integrin
αvβ3/αvβ5 expression levels in tumor tissues.
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Affiliation(s)
- Yumin Zheng
- Department of Nuclear Medicine, China-Japan Friendship Hospital , Beijing, 100029, China
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14
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Ren P, Sun D, Xin D, Ma W, Chen P, Gao H, Zhang S, Gong M. Serum amyloid A promotes osteosarcoma invasion via upregulating αvβ3 integrin. Mol Med Rep 2014; 10:3106-12. [PMID: 25323768 DOI: 10.3892/mmr.2014.2635] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 07/22/2014] [Indexed: 11/05/2022] Open
Abstract
Serum amyloid A (SAA) is regarded as an important acute phase protein involved in tumor progression and metastasis. However, at present there is no evidence of its involvement in osteosarcoma. The present study aimed to investigate the effect of SAA on the invasion of osteosarcoma cells. The effects of SAA on the migration and invasion of osteosarcoma cells were detected using scratch wound healing and transwell assays, respectively. The expression of αvβ3 integrin was detected at the protein and mRNA levels in U2OS cells. Agonists, inhibitors or siRNA of formyl peptide receptor like‑1 (FPRL‑1), mitogen‑activated protein kinases and αvβ3 integrin were used to investigate the mechanism underlying the effects of SAA on the regulation of U2OS cell migration and invasion. The present study revealed that SAA promoted osteosarcoma cell migration and invasion. SAA upregulated the expression of αvβ3 integrin in a concentration‑ and time‑dependent manner. When inhibiting αvβ3 integrin with its antagonist, the migration and invasion abilities of the U2OS cells were markedly inhibited. SAA‑induced αvβ3 integrin production was significantly downregulated by inhibiting FPRL‑1 with siRNA and inhibitors. The present study also found that extracellular signal‑regulated kinase (ERK) 1/2, but not c‑Jun N‑terminal kinase or p38, was important in this process. These findings demonstrated that SAA regulated osteosarcoma cell migration and invasion via the FPRL‑1/ERK/αvβ3 integrin pathway.
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Affiliation(s)
- Peng Ren
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Deshun Sun
- Department of Osteology, Zhangqiu City Hospital of Traditional Chinese Medicine, Jinan, Shandong 250200, P.R. China
| | - Dajiang Xin
- Department of Osteology, Mount Yantai Hospital, Yantai, Shandong 264000, P.R. China
| | - Wanli Ma
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Peng Chen
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Hongwei Gao
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Shouqiang Zhang
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Mingzhi Gong
- Department of Osteology, The Second Hospital, Shandong University, Jinan, Shandong 250033, P.R. China
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15
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Chen X, Corbin JM, Tipton GJ, Yang LV, Asch AS, Ruiz-Echevarría MJ. The TMEFF2 tumor suppressor modulates integrin expression, RhoA activation and migration of prostate cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:1216-24. [PMID: 24632071 DOI: 10.1016/j.bbamcr.2014.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/11/2014] [Accepted: 03/05/2014] [Indexed: 01/01/2023]
Abstract
Cell adhesion and migration play important roles in physiological and pathological states, including embryonic development and cancer invasion and metastasis. The type I transmembrane protein with epidermal growth factor and two follistatin motifs 2 (TMEFF2) is expressed mainly in brain and prostate and its expression is deregulated in prostate cancer. We have previously shown that TMEFF2 can function as a tumor suppressor by inhibiting cell migration and invasion of prostate cells. However, the molecular mechanisms involved in this inhibition are not clear. In this study we demonstrate that TMEFF2 affects cell adhesion and migration of prostate cancer cells and that this effect correlates with changes in integrin expression and RhoA activation. Deletion of a 13 basic-rich amino acid region in the cytoplasmic domain of TMEFF2 prevented these effects. Overexpression of TMEFF2 reduced cell attachment and migration on vitronectin and caused a concomitant decrease in RhoA activation, stress fiber formation and expression of αv, β1 and β3 integrin subunits. Conversely, TMEFF2 interference in 22Rv1 prostate cancer cells resulted in an increased integrin expression. Results obtained with a double TRAMP/TMEFF2 transgenic mouse also indicated that TMEFF2 expression reduced integrin expression in the mouse prostate. In summary, the data presented here indicate an important role of TMEFF2 in regulating cell adhesion and migration that involves integrin signaling and is mediated by its cytoplasmic domain.
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Affiliation(s)
- Xiaofei Chen
- Department of Biochemistry and Molecular Biology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Joshua M Corbin
- Department of Oncology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Greg J Tipton
- Department of Oncology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Li V Yang
- Department of Oncology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Anatomy and Cell Biology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Adam S Asch
- Department of Oncology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Maria J Ruiz-Echevarría
- Department of Oncology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Department of Anatomy and Cell Biology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA.
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16
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Sheldrake HM, Patterson LH. Strategies to inhibit tumor associated integrin receptors: rationale for dual and multi-antagonists. J Med Chem 2014; 57:6301-15. [PMID: 24568695 DOI: 10.1021/jm5000547] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The integrins are a family of 24 heterodimeric transmembrane cell surface receptors. Involvement in cell attachment to the extracellular matrix, motility, and proliferation identifies integrins as therapeutic targets in cancer and associated conditions: thrombosis, angiogenesis, and osteoporosis. The most reported strategy for drug development is synthesis of an agent that is highly selective for a single integrin receptor. However, the ability of cancer cells to change their integrin repertoire in response to drug treatment renders this approach vulnerable to the development of resistance and paradoxical promotion of tumor growth. Here, we review progress toward development of antagonists targeting two or more members of the Arg-Gly-Asp (RGD) binding integrins, notably αvβ3, αvβ5, αvβ6, αvβ8, α5β1, and αIIbβ3, as anticancer therapeutics.
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Affiliation(s)
- Helen M Sheldrake
- Institute of Cancer Therapeutics, University of Bradford , Bradford, BD7 1DP, U.K
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17
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Ji S, Zheng Y, Shao G, Zhou Y, Liu S. Integrin α(v)β₃-targeted radiotracer (99m)Tc-3P-RGD₂ useful for noninvasive monitoring of breast tumor response to antiangiogenic linifanib therapy but not anti-integrin α(v)β₃ RGD₂ therapy. Am J Cancer Res 2013; 3:816-30. [PMID: 24312152 PMCID: PMC3841333 DOI: 10.7150/thno.6989] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
Purpose: 99mTc-3P-RGD2 is a 99mTc-labeled dimeric cyclic RGD peptide that binds to integrin αvβ3 with high affinity and specificity. The purpose of this study was to demonstrate the utility of 99mTc-3P-RGD2 SPECT/CT (single photon emission computed tomography/computed tomography) as a molecular imaging tool for noninvasive monitoring breast tumor early response to antiangiogenesis therapy with linifanib, and to illustrate its limitations in monitoring the efficacy of anti-αvβ3 treatment. Methods: To support SPECT/CT imaging, biodistribution and therapy studies, the xenografted breast cancer model was established by subcutaneous injection of 5 × 106 MDA-MB-435 cells into the fat pad of each athymic nude mouse. Linifanib (ABT-869) was used as antiangiogenesis agent. The tumor volume was 180 ± 90 mm3 on the day (-1 day) before baseline SPECT/CT. Each animal was treated twice daily with vehicle or 12.5 mg/kg linifanib. Longitudinal 99mTc-3P-RGD2 SPECT/CT imaging was performed on days -1, 1, 4 and 11. Tumors were harvested at each time point for pathological analysis of hematoxylin and eosin (H&E) and immunohistochemistry (IHC). Tumor uptake of 99mTc-3P-RGD2 was calculated from SPECT/CT quantification. When cyclic peptide E[c(RGDfK)]2 (RGD2) was used as the anti-αvβ3 agent, SPECT/CT images were obtained only at 7 and 21 days after last RGD2 dose. Results: The tumor uptake of 99mTc-3P-RGD2 from SPECT/CT quantification was almost identical to that from biodistribution. There was a dramatic reduction in both %ID and %ID/cm3 tumor uptake of 99mTc-3P-RGD2 during the first 24 hours of linifanib therapy. The therapeutic effect of linifanib was on both tumor cells and vasculature, as determined by IHC analysis of integrin αvβ3 and CD31. Changes in tumor vasculature were further confirmed by pathological H&E analysis of tumor tissues. While its %ID tumor uptake increased steadily in vehicle-treated group, the %ID tumor uptake of 99mTc-3P-RGD2 decreased in linifanib-treated group slowly over the 11-day study period. The degree of tumor response to linifanib therapy correlated well to the integrin αvβ3 expression levels before linifanib therapy. Conclusion: 99mTc-3P-RGD2 is an excellent radiotracer for monitoring integrin αvβ3 expression during and after linifanib therapy. 99mTc-3P-RGD2 SPECT/CT is an useful molecular imaging tool for patient selection before antiangiogenic and anti-αvβ3 therapy; but it would be difficult to use 99mTc-3P-RGD2 for accurate and noninvasive monitoring of early tumor response to anti-αvβ3 therapy.
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18
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Fu X, Rivera A, Tao L, Zhang X. Genetically modified T cells targeting neovasculature efficiently destroy tumor blood vessels, shrink established solid tumors and increase nanoparticle delivery. Int J Cancer 2013; 133:2483-92. [PMID: 23661285 DOI: 10.1002/ijc.28269] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 04/23/2013] [Indexed: 02/03/2023]
Abstract
Converting T cells into tumor cell killers by grafting them with a chimeric antigen receptor (CAR) has shown promise as a cancer immunotherapeutic. However, the inability of these cells to actively migrate and extravasate into tumor parenchyma has limited their effectiveness in vivo. Here we report the construction of a CAR containing an echistatin as its targeting moiety (eCAR). As echistatin has high binding affinity to αvβ3 integrin that is highly expressed on the surface of endothelial cells of tumor neovasculature, T cells engrafted with eCAR (T-eCAR) can efficiently lyse human umbilical vein endothelial cells and tumor cells that express αvβ3 integrin when tested in vitro. Systemic administration of T-eCAR led to extensive bleeding in tumor tissues with no evidence of damage to blood vessels in normal tissues. Destruction of tumor blood vessels by T-eCAR significantly inhibited the growth of established bulky tumors. Moreover, when T-eCAR was codelivered with nanoparticles in a strategically designed temporal order, it dramatically increased nanoparticle deposition in tumor tissues, pointing to the possibility that it may be used together with nanocarriers to increase their capability to selectively deliver antineoplastic drugs to tumor tissues.
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Affiliation(s)
- Xinping Fu
- Department of Biology and Biochemistry, Center for Nuclear Receptors and Cell Signaling, University of Houston, Houston, TX
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19
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Le Guellec S, Moyal ECJ, Filleron T, Delisle MB, Chevreau C, Rubie H, Castex MP, de Gauzy JS, Bonnevialle P, Gomez-Brouchet A. The β5/focal adhesion kinase/glycogen synthase kinase 3β integrin pathway in high-grade osteosarcoma: a protein expression profile predictive of response to neoadjuvant chemotherapy. Hum Pathol 2013; 44:2149-58. [PMID: 23845472 DOI: 10.1016/j.humpath.2013.03.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 03/11/2013] [Accepted: 03/22/2013] [Indexed: 10/26/2022]
Abstract
To date, chemosensitivity to neoadjuvant chemotherapy of patients with high-grade osteosarcoma is evaluated on surgical resection by evaluation of the percentage of necrotic cells. As yet, no predictive profile of response to chemotherapy has been used in clinical practice. Because we have previously shown that the integrin pathway controls genotoxic-induced cell death and hypoxia, we hypothesized that in primary biopsies, expression of proteins involved in this pathway could be associated with sensitivity to neoadjuvant chemotherapy in high-grade osteosarcoma. We studied β1, β3, and β5 integrin expression and integrin-linked kinase, focal adhesion kinase (FAK), glycogen synthase kinase 3β (GSK3β), Rho B, angiopoietin-2, β-catenin, and ezrin expression by immunohistochemistry in 36 biopsies of osteosarcomas obtained before treatment. All patients received a chemotherapy regimen in the neoadjuvant setting. An immunoreactive score was assessed, combining the percentage of positive tumor cells and staining intensity. We evaluated the correlation of the biomarkers with response to chemotherapy, metastasis-free survival, and overall survival. A combination of 3 biomarkers (β5 integrin, FAK, and GSK3β) discriminated good and poor responders to chemotherapy, with the highest area under the curve (89.9%; 95% confidence interval, 77.4-1.00) and a diagnostic accuracy of 90.3%. Moreover, high expression of ezrin was associated with an increased risk of metastasis (hazard ratio, 3.93; 95% confidence interval, 1.19-12.9; P = .024). We report a protein expression profile in high-grade osteosarcoma associating β5 integrin, FAK, and GSK3β that significantly correlates with poor response to neoadjuvant chemotherapy. This biomarker profile could help select patients for whom an alternative protocol using inhibitors of this pathway can be proposed.
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Affiliation(s)
- Sophie Le Guellec
- Service d'anatomie et cytologie pathologiques, CHU Rangueil, Toulouse, France 50032
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20
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Applications of snake venom components to modulate integrin activities in cell-matrix interactions. Int J Biochem Cell Biol 2013; 45:1974-86. [PMID: 23811033 DOI: 10.1016/j.biocel.2013.06.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/29/2013] [Accepted: 06/12/2013] [Indexed: 01/23/2023]
Abstract
Snake venom proteins are broadly investigated in the different areas of life science. Direct interaction of these compounds with cells may involve a variety of mechanisms that result in diverse cellular responses leading to the activation or blocking of physiological functions of the cell. In this review, the snake venom components interacting with integrins will be characterized in context of their effect on cellular response. Currently, two major families of snake venom proteins are considered as integrin-binding molecules. The most attention has been devoted to the disintegrin family, which binds certain types of integrins through specific motifs recognized as a tri-peptide structurally localized on an integrin-binding loop. Other snake venom integrin-binding proteins belong to the C-type lectin family. Snake venom molecules bind to the cellular integrins resulting in a modulation of cell signaling and in consequence, the regulation of cell proliferation, migration and apoptosis. Therefore, snake venom research on the integrin-binding molecules may have significance in biomedicine and basic cell biology.
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21
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Zuch D, Giang AH, Shapovalov Y, Schwarz E, Rosier R, O'Keefe R, Eliseev RA. Targeting radioresistant osteosarcoma cells with parthenolide. J Cell Biochem 2012; 113:1282-91. [PMID: 22109788 DOI: 10.1002/jcb.24002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Osteosarcoma is a devastating tumor of bone, primarily affecting adolescents. Osteosarcoma tumors are notoriously radioresistant. Radioresistant cancers, including osteosarcoma, typically exhibit a considerable potential for relapse and development of metastases following treatment. Relapse and metastatic potential can, in part, be due to a specific radioresistant subpopulation of cells with stem-like characteristics, cancer stem cells, which maintain the capacity to regenerate entire tumors. In the current study, we have investigated whether in vitro treatments with parthenolide, a naturally occurring small molecule that interferes with NF-κB signaling and has various other effects, will re-sensitize cancer stem cells and the entire cell population to radiotherapy in osteosarcoma. Our results indicate that parthenolide and ionizing radiation synergistically induce cell death in LM7 osteosarcoma cells. Importantly, the combination treatment results in a significant reduction in the viability of both the overall population of osteosarcoma cells and the cancer stem cell subpopulation. This effect is dependent on the ability of parthenolide to induce oxidative stress. Therefore, as a supplement to current multimodal therapy, parthenolide may sensitize osteosarcoma tumors to radiation and greatly reduce the prevalence of relapse and metastatic progression.
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Affiliation(s)
- Daniel Zuch
- Center for Musculoskeletal Research, University of Rochester School of Medicine & Dentistry, 575 Elmwood Ave., Rochester, New York 14642, USA
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22
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Davicioni E, Wai DH, Anderson MJ. Diagnostic and Prognostic Sarcoma Signatures. Mol Diagn Ther 2012; 12:359-74. [DOI: 10.1007/bf03256302] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Osteosarcoma Phenotype Is Inhibited by 3,4-Methylenedioxy-β-nitrostyrene. Sarcoma 2012; 2012:479712. [PMID: 22701331 PMCID: PMC3371351 DOI: 10.1155/2012/479712] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 02/20/2012] [Indexed: 11/18/2022] Open
Abstract
β-nitrostyrene compounds, such as 3,4-methylenedioxy-β-nitrostyrene (MNS), inhibit growth and induce apoptosis in tumor cells, but no reports have investigated their role in osteosarcoma. In this study, human osteosarcoma cell families with cell lines of varying tumorigenic and metastatic potential were utilized. Scrape motility assays, colony formation assays, and colony survival assays were performed with osteosarcoma cell lines, both in the presence and absence of MNS. Effects of MNS on human osteoblasts and airway epithelial cells were assessed in monolayer cultures. MNS decreased metastatic cell line motility by 72–76% and colony formation by 95–100%. MNS consistently disrupted preformed colonies in a time-dependent and dose-dependent manner. MNS had similar effects on human osteoblasts but little effect on airway epithelial cells. An inactive analog of MNS had no detectable effects, demonstrating specificity. MNS decreases motility and colony formation of osteosarcoma cells and disrupts preformed cell colonies, while producing little effect on pulmonary epithelial cells.
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Fu BH, Wu ZZ, Qin J. Effects of integrin α6β1 on migration of hepatocellular carcinoma cells. Mol Biol Rep 2011; 38:3271-6. [PMID: 21359644 DOI: 10.1007/s11033-010-0308-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2009] [Accepted: 09/03/2010] [Indexed: 02/05/2023]
Abstract
In this study, we applied specific blocking antibodies for integrin α6 or β1 subunit, and evaluated the in vitro effects of integrins α6β1 on the adhesion, chemotaxis and migration of hepatocellular carcinoma (HCC) cell line SMMC-7721 to type IV collagen. The adhesion force and cell migration, as measured by a micropipette aspiration system and Boyden chamber assay respectively, was dramatically reduced when either integrin subunits was blocked. The chemotaxis, as determined using a dual-micropipette system, was only affected by the antibody against β1 subunit. This study suggests that integrin α6β1 is an important cell surface receptor that mediates the adhesion of SMMC-7721 to type IV collagen. But the α6 subunit has minimal effect on pseudopod formation in response to type IV collagen. Therefore, the integrin α6β1-mediated cell migration is, at least in part, through the regulation on the cell adhesion step.
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Affiliation(s)
- Bian-Hong Fu
- College of Resources and Environmental Sciences, Chongqing University, Chongqing 400044, China.
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25
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Synthesis and evaluation of new iRGD peptide analogs for tumor optical imaging. Bioorg Med Chem Lett 2010; 21:1146-50. [PMID: 21251820 DOI: 10.1016/j.bmcl.2010.12.112] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 12/18/2010] [Accepted: 12/21/2010] [Indexed: 01/02/2023]
Abstract
Recently, a disulfide-based cyclic RGD peptide called iRGD, that is, c(CRGDKGPDC), has been reported to interact with both integrin and neuropilin-1 receptors for cellular and deep tissue penetration to improve the imaging sensitivity and therapeutic efficacy. In this study, two new near-infrared fluorescent iRGD conjugates, that is, Ac-Cys(IRDye®800CW)-iRGD (1), and its dual labeling analog DOTA-Cys(IRDye®800CW)-iRGD (2) were synthesized via the specific mercapto-maleimide reaction for tumor imaging. Both 1 and 2 showed significant tumor localization in optical imaging of MDA-MB-435 tumor-bearing mice. The potential of such iRGD compounds in tumor-targeted imaging and drug delivery deserves further exploration.
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26
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Fu BH, Wu ZZ, Qin J. Effects of integrins on laminin chemotaxis by hepatocellular carcinoma cells. Mol Biol Rep 2009; 37:1665-70. [PMID: 19768654 DOI: 10.1007/s11033-009-9790-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Accepted: 08/31/2009] [Indexed: 11/30/2022]
Abstract
To quantitatively evaluate the effects of integrins alpha1beta1, alpha2beta1, alpha3beta1, alpha4beta1, alpha5beta1, and alpha6beta1 on the chemotaxis of hepatocelluar carcinoma (HCC) cell line SMMC-7721 to laminin (LN). A modified dual-micropipette system was used to dynamically and quantitatively monitor the formation of pseudopod protrusion of HCC cells toward LN in the presence or absence of specific antibodies against integrins alpha1, alpha2, alpha3, alpha4, alpha5, alpha6, and beta1. Additionally, the expression levels of different integrin subunits on the surface of the cells were determined via flow cytometry analysis. In response to equal concentrations of LN in both micropipettes, HCC cells form symmetrical pseudopod protrusions on both sides. Addition of antibodies against alpha3, alpha6, or beta1 into one micropipette leads to significant reduction of pseudopod formation on that side, while antibodies against alpha1, alpha2, alpha4, and alpha5 do not affect the symmetrical formation of pseudopods in either micropipette. The percentages of HCC cells positive for expression of integrins alpha1, alpha2, alpha3, alpha4, alpha5, alpha6, and beta1 were 95.07, 23.17, 95.55, 2.47, 34, 14.29, and 95.78%, respectively. Integrins alpha3beta1 and alpha6beta1 are important cell surface receptors that mediate the chemotaxis of HCC cells toward LN.
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Affiliation(s)
- Bian-Hong Fu
- College of Resources and Environmental Sciences, Chongqing University, Chongqing, China.
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27
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Arosio D, Manzoni L, Araldi EMV, Caprini A, Monferini E, Scolastico C. Functionalized cyclic RGD peptidomimetics: conjugable ligands for αvβ3 receptor imaging. Bioconjug Chem 2009; 20:1611-7. [PMID: 21141806 DOI: 10.1021/bc900155j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The α(v)β(3) integrin is an adhesion molecule involved in physiological and pathological angiogenesis as well as in tumor invasion and metastasis, and therefore, there is a strong interest in developing novel agents interacting with this molecule. We report the synthesis and characterization of fluorescent α(v)β(3) integrin probes and their use to visualize integrin α(v)β(3) expression on human normal and cancer cells. The fluorescent probes we describe here may be of use for noninvasive imaging of α(V)β(3) integrin expression also in vivo.
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Affiliation(s)
- Daniela Arosio
- CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), Milan, Italy.
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Immunotherapy for osteosarcoma: genetic modification of T cells overcomes low levels of tumor antigen expression. Mol Ther 2009; 17:1779-87. [PMID: 19532139 DOI: 10.1038/mt.2009.133] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Human epidermal growth factor receptor 2 (HER2) is expressed by the majority of human osteosarcomas and is a risk factor for poor outcome. Unlike breast cancer, osteosarcoma cells express HER2 at too low, a level for patients to benefit from HER2 monoclonal antibodies. We reasoned that this limitation might be overcome by genetically modifying T cells with HER2-specific chimeric antigen receptors (CARs), because even a low frequency of receptor engagement could be sufficient to induce effector cell killing of the tumor. HER2-specific T cells were generated by retroviral transduction with a HER2-specific CAR containing a CD28.zeta signaling domain. HER2-specific T cells recognized HER2-positive osteosarcoma cells as judged by their ability to proliferate, produce immunostimulatory T helper 1 cytokines, and kill HER2-positive osteosarcoma cell lines in vitro. The adoptive transfer of HER2-specific T cells caused regression of established osteosarcoma xenografts in locoregional as well as metastatic mouse models. In contrast, delivery of nontransduced (NT) T cells did not change the tumor growth pattern. Genetic modification of T cells with CARs specific for target antigens, expressed at too low a level to be effectively recognized by monoclonal antibodies, may allow immunotherapy to be more broadly applicable for human cancer therapy.
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Vohra S, Hennessy KM, Sawyer AA, Zhuo Y, Bellis SL. Comparison of mesenchymal stem cell and osteosarcoma cell adhesion to hydroxyapatite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:3567-74. [PMID: 18626747 PMCID: PMC3677517 DOI: 10.1007/s10856-008-3525-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2007] [Accepted: 06/25/2008] [Indexed: 05/24/2023]
Abstract
Immortalized cells are often used to model the behavior of osteogenic cells on orthopaedic and dental biomaterials. In the current study we compared the adhesive behavior of two osteosarcoma cell lines, MG-63 and Saos-2, with that of mesenchymal stem cells (MSCs) on hydroxyapatite (HA). It was found that osteosarcoma cells demonstrated maximal binding to fibronectin-coated HA, while MSCs alternately preferred HA coated with collagen-I. Interesting, the binding of MG-63 and Saos-2 cells to fibronectin was mediated by both alpha5 and alphav-containing integrin heterodimers, whereas only alphav integrins were used by MSCs. Cell spreading was also markedly different for the three cell types. Osteosarcoma cells exhibited optimal spreading on fibronectin, but poor spreading on HA disks coated with fetal bovine serum. In contrast, MSCs spread very well on serum-coated surfaces, but less extensively on fibronectin. Finally, we evaluated integrin expression and found that MSCs have higher levels of alpha2 integrin subunits relative to MG-63 or Saos-2 cells, which may explain the enhanced adhesion of MSCs on collagen-coated HA. Collectively our results suggest that osteosarcoma cells utilize different mechanisms than MSCs during initial attachment to protein-coated HA, thereby calling into question the suitability of these cell lines as in vitro models for cell/biomaterial interactions.
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Affiliation(s)
- Shikhar Vohra
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA
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Messerschmitt PJ, Rettew AN, Brookover RE, Garcia RM, Getty PJ, Greenfield EM. Specific tyrosine kinase inhibitors regulate human osteosarcoma cells in vitro. Clin Orthop Relat Res 2008; 466:2168-75. [PMID: 18607665 PMCID: PMC2493014 DOI: 10.1007/s11999-008-0338-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2007] [Accepted: 05/21/2008] [Indexed: 01/31/2023]
Abstract
Inhibitors of specific tyrosine kinases are attractive lead compounds for development of targeted chemotherapies for many tumors, including osteosarcoma. We asked whether inhibition of specific tyrosine kinases would decrease the motility, colony formation, and/or invasiveness by human osteosarcoma cell lines (TE85, MNNG, 143B, SAOS-2, LM-7). An EGF-R inhibitor reduced motility of all five cell lines by 50% to 80%. In contrast, an IGF-1R inhibitor preferentially reduced motility by 42% in LM-7 cells and a met inhibitor preferentially reduced motility by 80% in MNNG cells. The inhibitors of EGF-R, IGF-1R, and met reduced colony formation by more than 80% in all tested cell lines (TE85, MNNG, 143B). The EGF-R inhibitor reduced invasiveness by 62% in 143B cells. The JAK inhibitor increased motility of SAOS-2 and LM7 cells without affecting colony formation or invasiveness. Inhibitors of HER-2, NGF-R, and PDGF-Rs did not affect motility, invasiveness, or colony formation. These results support the hypothesis that specific tyrosine kinases regulate tumorigenesis and/or metastasis in osteosarcoma.
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Affiliation(s)
- Patrick J Messerschmitt
- Department of Orthopaedic Surgery, University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, 6th Floor Hanna House, Cleveland, OH 44118, USA.
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Metastatic osteosarcoma gene expression differs in vitro and in vivo. Clin Orthop Relat Res 2008; 466:2071-80. [PMID: 18516656 PMCID: PMC2493017 DOI: 10.1007/s11999-008-0309-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2007] [Accepted: 05/05/2008] [Indexed: 01/31/2023]
Abstract
An understanding of differential gene expression in highly metastatic osteosarcoma could provide gene targets for treatment of metastases. We compared gene expression profiles of high- (LM7) and low- (LM2) metastatic SaOS2-derived cell lines in an in vitro tissue culture model and examined several differentially regulated genes in vivo in a murine orthotopic xenograft model. We hypothesized an orthotopic inoculation of LM2 and LM7 cells would establish a primary lesion and the gene expression profile of cells grafted in this fashion would resemble the gene expression profile observed in an in vitro model. Thirty-five days after inoculation, animals were euthanized and both tibiae were harvested and rapidly frozen in liquid nitrogen. Human-specific GAPDH mRNA was present in two of four tibias inoculated with LM2 cells and three of four tibias inoculated with LM7 cells. Tibiae displaying the presence of human cells were assayed by semiquantitative reverse transcriptase polymerase chain reaction. We observed poor correspondence of in vitro to in vivo gene expression for either cell line. Accordingly, in vitro osteosarcoma gene expression data must be interpreted with caution until confirmed in vivo. Our orthotopic injection model allowed in vivo study of differential gene expression between these two cell lines but did not show radiographic evidence of an established primary lesion.
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32
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Hariharan S, Gustafson D, Holden S, McConkey D, Davis D, Morrow M, Basche M, Gore L, Zang C, O'Bryant CL, Baron A, Gallemann D, Colevas D, Eckhardt SG. Assessment of the biological and pharmacological effects of the ανβ3 and ανβ5 integrin receptor antagonist, cilengitide (EMD 121974), in patients with advanced solid tumors. Ann Oncol 2007; 18:1400-7. [PMID: 17693653 DOI: 10.1093/annonc/mdm140] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cilengitide, an antiangiogenic agent that inhibits the binding of integrins alpha(nu)beta(3) and alpha(nu)beta(5) to the extracellular matrix, was studied at two dose levels in cancer patients to determine the optimal biological dose. PATIENTS AND METHODS The doses of cilengitide were 600 or 1200 mg/m(2) as a 1-h infusion twice weekly every 28 days. A novel dose escalation scheme was utilized that relied upon the biological activity rate. RESULTS Twenty patients received 50 courses of cilengitide with no dose-limiting toxic effects. The pharmacokinetic (PK) profile revealed a short elimination half-life of 4 h, supporting twice weekly dosing. Of the six soluble angiogenic molecules assessed, only E-selectin increased significantly from baseline. Analysis of tumor microvessel density and gene expression was not informative due to intrapatient tumor heterogeneity. Although several patients with evaluable tumor biopsy pairs did reveal posttreatment increases in tumor and endothelial cell apoptosis, these results did not reach statistical significance due to the aforementioned heterogeneity. CONCLUSIONS Cilengitide is a well-tolerated antiangiogenic agent. The biomarkers chosen in this study underscore the difficulty in assessing the biological activity of antiangiogenic agents in the absence of validated biological assays.
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Affiliation(s)
- S Hariharan
- University of Colorado Cancer Center, Aurora, CO 80045, USA
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Gassiamis A, Tsakonas G, Soukouli G, Mylonakis N, Karabelis A, Kosmas C. Diffuse calcification of metastases after intensive multiagent chemotherapy in widespread osteosarcoma leading to death in a 18-year-old male: report of a case and literature review. Med Oncol 2007; 23:455-62. [PMID: 17303903 DOI: 10.1385/mo:23:4:455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2006] [Revised: 11/30/1999] [Accepted: 06/22/2006] [Indexed: 11/11/2022]
Abstract
Multifocal osteosarcoma represents a rare and aggressive type of osteosarcoma in which multiple bone lesions are detected simultaneously in the absence of pulmonary or any other visceral organ involvement. Despite a multidisciplinary approach, overall survival remains poor and disease progresses, leading to death within 1 yr of diagnosis. Here we report a case of an 18-yr-old patient with extensively metastatic osteosarcoma developing diffuse calcification in lung, pleural, diaphragm, pericardial, subcutaneous metastases, and mediastinal lymph nodes after intensive multiagent chemotherapy. We provide an extensive review of the literature together with presentation of different aspects regarding the debate on the multicentric versus metastatic hypotheses for multifocal osteosarcoma. An update on the current understanding of the molecular features of this disease is also included.
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Affiliation(s)
- Argyris Gassiamis
- Department of Medicine, 2nd Division of Medical Oncology, Metaxa Cancer Hospital, Pireaus, Greece
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34
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Kim HS. Osteosarcoma: Biologic Markers in Its Treatment. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2006. [DOI: 10.5124/jkma.2006.49.12.1082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Han Soo Kim
- Department of Orthopaedic Surgery, Seoul Naitonal University College of Medicine, Korea.
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