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Muthukrishnan SD, Qi H, Wang D, Elahi L, Pham A, Alvarado AG, Li T, Gao F, Kawaguchi R, Lai A, Kornblum HI. Low- and High-Grade Glioma-Associated Vascular Cells Differentially Regulate Tumor Growth. Mol Cancer Res 2024; 22:656-667. [PMID: 38441553 PMCID: PMC11217726 DOI: 10.1158/1541-7786.mcr-23-1069] [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: 12/22/2023] [Revised: 02/13/2024] [Accepted: 03/01/2024] [Indexed: 03/19/2024]
Abstract
A key feature distinguishing high-grade glioma (HG) from low-grade glioma (LG) is the extensive neovascularization and endothelial hyperproliferation. Prior work has shown that tumor-associated vasculature from HG is molecularly and functionally distinct from normal brain vasculature and expresses higher levels of protumorigenic factors that promote glioma growth and progression. However, it remains unclear whether vessels from LG also express protumorigenic factors, and to what extent they functionally contribute to glioma growth. Here, we profile the transcriptomes of glioma-associated vascular cells (GVC) from IDH-mutant (mIDH) LG and IDH-wild-type (wIDH) HG and show that they exhibit significant molecular and functional differences. LG-GVC show enrichment of extracellular matrix-related gene sets and sensitivity to antiangiogenic drugs, whereas HG-GVC display an increase in immune response-related gene sets and antiangiogenic resistance. Strikingly, conditioned media from LG-GVC inhibits the growth of wIDH glioblastoma cells, whereas HG-GVC promotes growth. In vivo cotransplantation of LG-GVC with tumor cells reduces growth, whereas HG-GVC enhances tumor growth in orthotopic xenografts. We identify ASPORIN (ASPN), a small leucine-rich repeat proteoglycan, highly enriched in LG-GVC as a growth suppressor of wIDH glioblastoma cells in vitro and in vivo. Together, these findings indicate that GVC from LG and HG are molecularly and functionally distinct and differentially regulate tumor growth. Implications: This study demonstrated that vascular cells from IDH-mutant LG and IDH-wild-type HG exhibit distinct molecular signatures and have differential effects on tumor growth via regulation of ASPN-TGFβ1-GPM6A signaling.
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Affiliation(s)
- Sree Deepthi Muthukrishnan
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
- Department of Oncology Science, College of Medicine, University of Oklahoma, Oklahoma City, Oklahoma
| | - Haocheng Qi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - David Wang
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Lubayna Elahi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Amy Pham
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Alvaro G. Alvarado
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Tie Li
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Fuying Gao
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Riki Kawaguchi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Albert Lai
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Harley I. Kornblum
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, UCLA, Los Angeles, California
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Ballestín A, Armocida D, Ribecco V, Seano G. Peritumoral brain zone in glioblastoma: biological, clinical and mechanical features. Front Immunol 2024; 15:1347877. [PMID: 38487525 PMCID: PMC10937439 DOI: 10.3389/fimmu.2024.1347877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
Glioblastoma is a highly aggressive and invasive tumor that affects the central nervous system (CNS). With a five-year survival rate of only 6.9% and a median survival time of eight months, it has the lowest survival rate among CNS tumors. Its treatment consists of surgical resection, subsequent fractionated radiotherapy and concomitant and adjuvant chemotherapy with temozolomide. Despite the implementation of clinical interventions, recurrence is a common occurrence, with over 80% of cases arising at the edge of the resection cavity a few months after treatment. The high recurrence rate and location of glioblastoma indicate the need for a better understanding of the peritumor brain zone (PBZ). In this review, we first describe the main radiological, cellular, molecular and biomechanical tissue features of PBZ; and subsequently, we discuss its current clinical management, potential local therapeutic approaches and future prospects.
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Affiliation(s)
- Alberto Ballestín
- Tumor Microenvironment Laboratory, UMR3347 CNRS/U1021 INSERM, Institut Curie, Orsay, France
| | - Daniele Armocida
- Human Neurosciences Department, Neurosurgery Division, Sapienza University, Rome, Italy
| | - Valentino Ribecco
- Tumor Microenvironment Laboratory, UMR3347 CNRS/U1021 INSERM, Institut Curie, Orsay, France
| | - Giorgio Seano
- Tumor Microenvironment Laboratory, UMR3347 CNRS/U1021 INSERM, Institut Curie, Orsay, France
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Agnihotri TG, Salave S, Shinde T, Srikanth I, Gyanani V, Haley JC, Jain A. Understanding the role of endothelial cells in brain tumor formation and metastasis: a proposition to be explored for better therapy. JOURNAL OF THE NATIONAL CANCER CENTER 2023; 3:222-235. [PMID: 39035200 PMCID: PMC11256543 DOI: 10.1016/j.jncc.2023.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 07/23/2024] Open
Abstract
Glioblastoma is one of the most devastating central nervous system disorders. Being a highly vascular brain tumor, it is distinguished by aberrant vessel architecture. This lends credence to the idea that endothelial cells (ECs) linked with glioblastoma vary fundamentally from ECs seen in the healthy human brain. To effectively design an antiangiogenic treatment, it is crucial to identify the functional and phenotypic characteristics of tumor-associated ECs. The ECs associated with glioblastoma are less prone to apoptosis than control cells and are resistant to cytotoxic treatments. Additionally, ECs associated with glioblastoma migrate more quickly than control ECs and naturally produce large amounts of growth factors such as endothelin-1, interleukin-8, and vascular endothelial growth factor (VEGF). For designing innovative antiangiogenic drugs that particularly target tumor-related ECs in gliomas, it is critical to comprehend these distinctive features of ECs associated with gliomas. This review discusses the process of angiogenesis, other factors involved in the genesis of tumors, and the possibility of ECs as a potential target in combating glioblastoma. It also sheds light on the association of tumor microenvironment and ECs with immunotherapy. This review, thus gives us the hope that neuro endothelial targeting with growth factors and angiogenesis regulators combined with gene therapy would open up new doorways and change our traditional perspective of treating cancer.
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Affiliation(s)
- Tejas Girish Agnihotri
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, India
| | - Sagar Salave
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, India
| | - Tanuja Shinde
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, India
| | - Induri Srikanth
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, India
| | - Vijay Gyanani
- Long Acting Drug Delivery, Celanese Corporation, Irving, United States
| | - Jeffrey C. Haley
- Long Acting Drug Delivery, Celanese Corporation, Irving, United States
| | - Aakanchha Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, India
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Anti-Vascular Endothelial Growth Factor Therapy Abolishes Glioma-Associated Endothelial Cell-Induced Tumor Invasion. J Mol Neurosci 2023; 73:104-116. [PMID: 36653624 DOI: 10.1007/s12031-023-02099-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/03/2023] [Indexed: 01/20/2023]
Abstract
Tumor-remodeled endothelial cells not only facilitate the formation of tumor angiogenesis but also promote tumorigenesis. In this study, we aimed to explore the interaction between glioma-associated endothelial cells (GAEs) and glioma cells. We found that different subtypes of glioma owned distinct GAE abundance. Glioma patients with high GAE abundance exhibited poor prognosis. Both the results of the bioinformatics analysis and the in vitro co-culture system assay revealed that GAE promoted glioma cell invasion. Besides, anti-vascular endothelial growth factor (VEGF) therapy partially abolished the effects of GAE on gliomas. Moreover, anti-VEGF therapy upregulated IL-2 expression in GAE, and exogenous IL-2 administration inhibits GAE-induced glioma cell invasion. Collectively, our present study provides a novel outstanding of the interaction between GAE and glioma cells.
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Testa E, Palazzo C, Mastrantonio R, Viscomi MT. Dynamic Interactions between Tumor Cells and Brain Microvascular Endothelial Cells in Glioblastoma. Cancers (Basel) 2022; 14:3128. [PMID: 35804908 PMCID: PMC9265028 DOI: 10.3390/cancers14133128] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/17/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
GBM is the most aggressive brain tumor among adults. It is characterized by extensive vascularization, and its further growth and recurrence depend on the formation of new blood vessels. In GBM, tumor angiogenesis is a multi-step process involving the proliferation, migration and differentiation of BMECs under the stimulation of specific signals derived from the cancer cells through a wide variety of communication routes. In this review, we discuss the dynamic interaction between BMECs and tumor cells by providing evidence of how tumor cells hijack the BMECs for the formation of new vessels. Tumor cell-BMECs interplay involves multiple routes of communication, including soluble factors, such as chemokines and cytokines, direct cell-cell contact and extracellular vesicles that participate in and fuel this cooperation. We also describe how this interaction is able to modify the BMECs structure, metabolism and physiology in a way that favors tumor growth and invasiveness. Finally, we briefly reviewed the recent advances and the potential future implications of some high-throughput 3D models to better understanding the complexity of BMECs-tumor cell interaction.
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Affiliation(s)
- Erika Testa
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Roma, Italy; (C.P.); (R.M.)
| | - Claudia Palazzo
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Roma, Italy; (C.P.); (R.M.)
| | - Roberta Mastrantonio
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Roma, Italy; (C.P.); (R.M.)
| | - Maria Teresa Viscomi
- Sezione di Istologia ed Embriologia, Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Roma, Italy; (C.P.); (R.M.)
- IRCCS, Fondazione Policlinico Universitario “Agostino Gemelli”, L.go A. Gemelli 8, 00168 Roma, Italy
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Munquad S, Si T, Mallik S, Das AB, Zhao Z. A Deep Learning-Based Framework for Supporting Clinical Diagnosis of Glioblastoma Subtypes. Front Genet 2022; 13:855420. [PMID: 35419027 PMCID: PMC9000988 DOI: 10.3389/fgene.2022.855420] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022] Open
Abstract
Understanding molecular features that facilitate aggressive phenotypes in glioblastoma multiforme (GBM) remains a major clinical challenge. Accurate diagnosis of GBM subtypes, namely classical, proneural, and mesenchymal, and identification of specific molecular features are crucial for clinicians for systematic treatment. We develop a biologically interpretable and highly efficient deep learning framework based on a convolutional neural network for subtype identification. The classifiers were generated from high-throughput data of different molecular levels, i.e., transcriptome and methylome. Furthermore, an integrated subsystem of transcriptome and methylome data was also used to build the biologically relevant model. Our results show that deep learning model outperforms the traditional machine learning algorithms. Furthermore, to evaluate the biological and clinical applicability of the classification, we performed weighted gene correlation network analysis, gene set enrichment, and survival analysis of the feature genes. We identified the genotype-phenotype relationship of GBM subtypes and the subtype-specific predictive biomarkers for potential diagnosis and treatment.
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Affiliation(s)
- Sana Munquad
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, India
| | - Tapas Si
- Department of Computer Science and Engineering, Bankura Unnayani Institute of Engineering, Bankura, India
| | - Saurav Mallik
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Asim Bikas Das
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, India
| | - Zhongming Zhao
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
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7
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Rado M, Flepisi B, Fisher D. The Effect of Normoxic and Hypoxic U-87 Glioblastoma Paracrine Secretion on the Modulation of Brain Endothelial Cells. Cells 2022; 11:276. [PMID: 35053392 PMCID: PMC8773645 DOI: 10.3390/cells11020276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/04/2022] [Accepted: 01/07/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is a highly invasive brain tumour, characterized by its ability to secrete factors promoting its virulence. Brain endothelial cells (BECs) in the GBM environment are physiologically modulated. The present study investigated the modulatory effects of normoxically and hypoxically induced glioblastoma U-87 cell secretions on BECs. METHODS Conditioned media (CM) were derived by cultivating U-87 cells under hypoxic incubation (5% O2) and normoxic incubation (21% O2). Treated bEnd.3 cells were evaluated for mitochondrial dehydrogenase activity, mitochondrial membrane potential (ΔΨm), ATP production, transendothelial electrical resistance (TEER), and endothelial tight-junction (ETJ) gene expression over 96 h. RESULTS The coculture of bEnd.3 cells with U-87 cells, or exposure to either hypoxic or normoxic U-87CM, was associated with low cellular viability. The ΔΨm in bEnd.3 cells was hyperpolarized after hypoxic U-87CM treatment (p < 0.0001). However, normoxic U-87CM did not affect the state of ΔΨm. BEC ATP levels were reduced after being cocultured with U-87 cells, or with hypoxic and normoxic CM (p < 0.05). Suppressed mitochondrial activity in bEnd.3 cells was associated with increased transendothelial permeability, while bEnd.3 cells significantly increased the gene expression levels of ETJs (p < 0.05) when treated with U-87CM. CONCLUSIONS Hypoxic and normoxic glioblastoma paracrine factors differentially suppressed mitochondrial activity in BECs, increasing the BECs' barrier permeability.
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Affiliation(s)
- Mariam Rado
- Medical Bioscience Department, Faculty of Natural Sciences, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa;
| | - Brian Flepisi
- Department of Pharmacology, Faculty of Health Sciences, University of Pretoria, 9 Bophelo Road, Pretoria 0002, South Africa;
| | - David Fisher
- Medical Bioscience Department, Faculty of Natural Sciences, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa;
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8
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Targeting Glioblastoma: Advances in Drug Delivery and Novel Therapeutic Approaches. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000124] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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McCoy MG, Nyanyo D, Hung CK, Goerger JP, R Zipfel W, Williams RM, Nishimura N, Fischbach C. Endothelial cells promote 3D invasion of GBM by IL-8-dependent induction of cancer stem cell properties. Sci Rep 2019; 9:9069. [PMID: 31227783 PMCID: PMC6588602 DOI: 10.1038/s41598-019-45535-y] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/06/2019] [Indexed: 12/14/2022] Open
Abstract
Rapid growth and perivascular invasion are hallmarks of glioblastoma (GBM) that have been attributed to the presence of cancer stem-like cells (CSCs) and their association with the perivascular niche. However, the mechanisms by which the perivascular niche regulates GBM invasion and CSCs remain poorly understood due in part to a lack of relevant model systems. To simulate perivascular niche conditions and analyze consequential changes of GBM growth and invasion, patient-derived GBM spheroids were co-cultured with brain endothelial cells (ECs) in microfabricated collagen gels. Integrating these systems with 3D imaging and biochemical assays revealed that ECs increase GBM invasiveness and growth through interleukin-8 (IL-8)-mediated enrichment of CSCs. Blockade of IL-8 inhibited these effects in GBM-EC co-cultures, while IL-8 supplementation increased CSC-mediated growth and invasion in GBM-monocultures. Experiments in mice confirmed that ECs and IL-8 stimulate intracranial tumor growth and invasion in vivo. Collectively, perivascular niche conditions promote GBM growth and invasion by increasing CSC frequency, and IL-8 may be explored clinically to inhibit these interactions.
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Affiliation(s)
- Michael G McCoy
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Dennis Nyanyo
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Carol K Hung
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Julian Palacios Goerger
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Warren R Zipfel
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Rebecca M Williams
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Nozomi Nishimura
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Claudia Fischbach
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States.
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY, 14853, United States.
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Wang C, Li J, Sinha S, Peterson A, Grant GA, Yang F. Mimicking brain tumor-vasculature microanatomical architecture via co-culture of brain tumor and endothelial cells in 3D hydrogels. Biomaterials 2019; 202:35-44. [PMID: 30836243 DOI: 10.1016/j.biomaterials.2019.02.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 02/13/2019] [Accepted: 02/26/2019] [Indexed: 11/17/2022]
Abstract
Glioblastoma (GBM) is an aggressive malignant brain tumor with median survival of 12 months and 5-year survival rate less than 5%. GBM is highly vascularized, and the interactions between tumor and endothelial cells play an important role in driving tumor growth. To study tumor-endothelial interactions, the gold standard co-culture model is transwell culture, which fails to recapitulate the biochemical or physical cues found in tumor niche. Recently, we reported the development of poly(ethylene-glycol)-based hydrogels as 3D niche that supported GBM proliferation and invasion. To further mimic the microanatomical architecture of tumor-endothelial interactions in vivo, here we developed a hydrogel-based co-culture model that mimics the spatial organization of tumor and endothelial cells. To increase the physiological relevance, patient-derived GBM cells and mouse brain endothelial cells were used as model cell types. Using hydrolytically-degradable alginate fibers as porogens, endothelial cells were deployed and patterned into vessel-like structures in 3D hydrogels with high cell viability and retention of endothelial phenotype. Co-culture led to a significant increase in GBM cell proliferation and decrease in endothelial cell expression of cell adhesion proteins. In summary, we have developed a novel 3D co-culture model that mimics the in vivo spatial organization of brain tumor and endothelial cells. Such model may provide a valuable tool for future mechanistic studies to elucidate the effects of tumor-endothelial interactions on tumor progression in a more physiologically-relevant manner.
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Affiliation(s)
- Christine Wang
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Jianfeng Li
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA, 94305, USA
| | - Sauradeep Sinha
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Addie Peterson
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Gerald A Grant
- Department of Neurosurgery, Stanford University Medical Center, Stanford, CA, 94305, USA
| | - Fan Yang
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA; Department of Orthopaedic Surgery, Stanford University, Stanford, CA, 94305, USA.
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Bayat N, Izadpanah R, Ebrahimi-Barough S, Norouzi Javidan A, Ai A, Mokhtari Ardakan MM, Saberi H, Ai J. The Anti-Angiogenic Effect of Atorvastatin in Glioblastoma Spheroids Tumor Cultured in Fibrin Gel: in 3D in Vitro Model. Asian Pac J Cancer Prev 2018; 19:2553-2560. [PMID: 30256055 PMCID: PMC6249458 DOI: 10.22034/apjcp.2018.19.9.2553] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Purpose: Glioblastoma multiform (GBM) is the most aggressive glial neoplasm. Researchers have exploited the fact that GBMs are highly vascularized tumors. Anti-angiogenic strategies including those targeting VEGF pathway have been emerged for treatment of GBM. Previously, we reported the anti-inflammatory effect of atorvastatin on GBM cells. In this study, we investigated the anti-angiogenesis and apoptotic activity of atorvastatin on GBM cells. Methods: Different concentrations of atorvastatin (1, 5, 10µM) were used on engineered three-dimensional (3D) human tumor models using glioma spheroids and Human Umbilical Vein Endothelial cells (HUVECs) in fibrin gel as tumor models. To reach for these aims, angiogenesis as tube-like structures sprouting of HUVECs were observed after 24 hour treatment with different concentrations of atorvastatin into the 3-D fibrin matrix and we focused on it by angiogenesis antibody array. After 48 hours exposing with different concentrations of atorvastatin, cell migration of HUVECs were investigated. After 24 and 48 hours exposing with different concentrations of atorvastatin VEGF, CD31, caspase-3 and Bcl-2 genes expression by real time PCR were assayed. Results: The results showed that atorvastatin has potent anti-angiogenic effect and apoptosis inducing effect against glioma spheroids. Atorvastatin down-regulated the expression of VEGF, CD31 and Bcl-2, and induced the expression of caspase-3 especially at 10µM concentration. These effects are dose dependent. Conclusion: These results suggest that this biomimetic model with fibrin may provide a vastly applicable 3D culture system to study the effect of anti-cancer drugs such as atorvastatin on tumor malignancy in vitro and in vivo and atorvastatin could be used as agent for glioblastoma treatment.
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Affiliation(s)
- Neda Bayat
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Gauberti M, Fournier AP, Docagne F, Vivien D, Martinez de Lizarrondo S. Molecular Magnetic Resonance Imaging of Endothelial Activation in the Central Nervous System. Theranostics 2018; 8:1195-1212. [PMID: 29507614 PMCID: PMC5835930 DOI: 10.7150/thno.22662] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 01/12/2018] [Indexed: 01/01/2023] Open
Abstract
Endothelial cells of the central nervous system over-express surface proteins during neurological disorders, either as a cause, or a consequence, of the disease. Since the cerebral vasculature is easily accessible by large contrast-carrying particles, it constitutes a target of choice for molecular magnetic resonance imaging (MRI). In this review, we highlight the most recent advances in molecular MRI of brain endothelial activation and focus on the development of micro-sized particles of iron oxide (MPIO) targeting adhesion molecules including intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), P-Selectin and E-Selectin. We also discuss the perspectives and challenges for the clinical application of this technology in neurovascular disorders (ischemic stroke, intracranial hemorrhage, subarachnoid hemorrhage, diabetes mellitus), neuroinflammatory disorders (multiple sclerosis, brain infectious diseases, sepsis), neurodegenerative disorders (Alzheimer's disease, vascular dementia, aging) and brain cancers (primitive neoplasms, metastasis).
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Affiliation(s)
- Maxime Gauberti
- Normandie Univ, UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Cyceron, 14000 Caen, France
- CHU Caen, Department of diagnostic imaging and interventional radiology, CHU de Caen Côte de Nacre, Caen, France
| | - Antoine P. Fournier
- Normandie Univ, UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Cyceron, 14000 Caen, France
| | - Fabian Docagne
- Normandie Univ, UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Cyceron, 14000 Caen, France
| | - Denis Vivien
- Normandie Univ, UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Cyceron, 14000 Caen, France
- CHU Caen, Clinical Research Department, CHU de Caen Côte de Nacre, Caen, France
| | - Sara Martinez de Lizarrondo
- Normandie Univ, UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Cyceron, 14000 Caen, France
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Witusik-Perkowska M, Zakrzewska M, Sikorska B, Papierz W, Jaskolski DJ, Szemraj J, Liberski PP. Glioblastoma-derived cells in vitro unveil the spectrum of drug resistance capability - comparative study of tumour chemosensitivity in different culture systems. Biosci Rep 2017; 37:BSR20170058. [PMID: 28522553 PMCID: PMC5964726 DOI: 10.1042/bsr20170058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 05/05/2017] [Accepted: 05/18/2017] [Indexed: 12/28/2022] Open
Abstract
Resistance to cancer drugs is a complex phenomenon which could be influenced by in vitro conditions. However, tumour-derived cell cultures are routinely used for studies related to mechanisms of drug responsiveness or the search for new therapeutic approaches. The purpose of our work was to identify the potential differences in drug resistance and response to treatment of glioblastoma with the use of three in vitro models: traditional adherent culture, serum-free spheroid culture and novel adherent serum-free culture.The experimental models were evaluated according to 'stemness state' and epithelial-to-mesenchymal transition (EMT) status, invasion capability and their expression pattern of genes related to the phenomenon of tumour drug resistance. Additionally, the response to drug treatments of three different culture models was compared with regard to the type of cell death.Multi-gene expression profiling revealed differences between examined culture types with regard to the expression pattern of the selected genes. Functionally, the examined genes were related to drug resistance and metabolism, DNA damage and repair and cell cycle control, and included potential therapeutic targets.Cytotoxicity analyses confirmed that environmental factors can influence not only the molecular background of glioblastoma drug-resistance and efficiency of treatment, but also the mechanisms/pathways of cell death, which was reflected by a distinct intensification of apoptosis and autophagy observed in particular culture models. Our results suggest that parallel exploitation of different in vitro experimental models can be used to reveal the spectrum of cancer cell resistance capability, especially regarding intra-heterogeneous glioblastomas.
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Affiliation(s)
- Monika Witusik-Perkowska
- Department of Medical Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
| | - Magdalena Zakrzewska
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
| | - Beata Sikorska
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
| | - Wielislaw Papierz
- Department of Pathomorphology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
| | - Dariusz J Jaskolski
- Department of Neurosurgery and Oncology of Central Nervous System, Medical University of Lodz, Barlicki University Hospital, Kopcińskiego 22, Lodz 90-153, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
| | - Pawel P Liberski
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Czechoslowacka 8/10, 92-216 Lodz, Poland
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Hosono J, Morikawa S, Ezaki T, Kawamata T, Okada Y. Pericytes promote abnormal tumor angiogenesis in a rat RG2 glioma model. Brain Tumor Pathol 2017. [PMID: 28646266 DOI: 10.1007/s10014-017-0291-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In glioma angiogenesis, tumor vessels cause morphological and functional abnormalities associated with malignancy and tumor progression. We hypothesized that certain structural changes or scantiness of functional pericytes may be involved in the formation of dysfunctional blood vessels in gliomas. In this study, we performed morphological examinations to elucidate the possible involvement of pericytes in brain tumor vessel abnormalities using a rat RG2 glioma model. After implantation of RG2 glioma cells in the syngeneic rat brain, gliomas were formed as early as day 7. In immunohistochemical examinations, desmin-positive pericytes, characterized by morphological abnormalities, were abundantly found on leaky vessels, as assessed by extravasation of lectin and high-molecular-weight dextrans. Interestingly, desmin-positive pericytes seemed to be characteristic of gliomas in rats. These pericytes were also found to express heat-shock protein 47, which plays an important role in the formation of the basement membrane, suggesting that RG2 pericytes promoted angiogenesis by producing basement membrane as a scaffold for newly forming blood vessels and caused functional abnormalities. We concluded that RG2 pericytes may be responsible for abnormal tumor angiogenesis lacking the functional ability to maintain the blood-brain barrier.
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Affiliation(s)
- Junji Hosono
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan.,Department of Anatomy and Developmental Biology, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Shunichi Morikawa
- Department of Anatomy and Developmental Biology, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Taichi Ezaki
- Department of Anatomy and Developmental Biology, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan.
| | - Takakazu Kawamata
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Yoshikazu Okada
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1, Kawada-cho Shinjuku-ku, Tokyo, 162-8666, Japan
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15
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Obacz J, Avril T, Le Reste PJ, Urra H, Quillien V, Hetz C, Chevet E. Endoplasmic reticulum proteostasis in glioblastoma—From molecular mechanisms to therapeutic perspectives. Sci Signal 2017; 10:10/470/eaal2323. [DOI: 10.1126/scisignal.aal2323] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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MiR-383 inhibits proliferation, migration and angiogenesis of glioma-exposed endothelial cells in vitro via VEGF-mediated FAK and Src signaling pathways. Cell Signal 2017; 30:142-153. [DOI: 10.1016/j.cellsig.2016.09.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Accepted: 09/24/2016] [Indexed: 11/22/2022]
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17
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Turaga SM, Lathia JD. Adhering towards tumorigenicity: altered adhesion mechanisms in glioblastoma cancer stem cells. CNS Oncol 2016; 5:251-9. [PMID: 27616054 DOI: 10.2217/cns-2016-0015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Glioblastoma (GBM) is the most aggressive malignant primary brain tumor in adults with a high recurrence and mortality rate. GBM tumors contain a high degree of cellular heterogeneity, with cells exhibiting stem-like properties (cancer stem cells; CSCs) that are highly efficient at tumor initiation and are resistant to conventional therapies. CSCs interact with their tumor microenvironment by a large group of diverse cell adhesion molecules (CAMs) that participate in intercellular, intracellular and cell-extracellular matrix interactions. Despite the initial description of CAMs as tumor suppressors, recent work has highlighted specific CAMs that are essential for CSC maintenance and tumor progression. This review will highlight recent findings that provide support for a context-specific role of CAMs in CSC function and GBM progression.
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Affiliation(s)
- Soumya M Turaga
- Department of Cellular & Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.,Department of Biological, Geological, & Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA
| | - Justin D Lathia
- Department of Cellular & Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.,Department of Biological, Geological, & Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH 44195, USA.,Case Comprehensive Cancer Center, Cleveland, OH 44106, USA
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18
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Malhotra M, Toulouse A, Godinho BMDC, Mc Carthy DJ, Cryan JF, O'Driscoll CM. RNAi therapeutics for brain cancer: current advancements in RNAi delivery strategies. MOLECULAR BIOSYSTEMS 2016; 11:2635-57. [PMID: 26135606 DOI: 10.1039/c5mb00278h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Malignant primary brain tumors are aggressive cancerous cells that invade the surrounding tissues of the central nervous system. The current treatment options for malignant brain tumors are limited due to the inability to cross the blood-brain barrier. The advancements in current research has identified and characterized certain molecular markers that are essential for tumor survival, progression, metastasis and angiogenesis. These molecular markers have served as therapeutic targets for the RNAi based therapies, which enable site-specific silencing of the gene responsible for tumor proliferation. However, to bring about therapeutic success, an efficient delivery carrier that can cross the blood-brain barrier and reach the targeted site is essential. The current review focuses on the potential of targeted, non-viral and viral particles containing RNAi therapeutic molecules as delivery strategies specifically for brain tumors.
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Affiliation(s)
- Meenakshi Malhotra
- Pharmacodelivery Group, School of Pharmacy, University College Cork, Cork, Ireland
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19
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Zhu Y, Zhao K, Prinz A, Keyvani K, Lambertz N, Kreitschmann-Andermahr I, Lei T, Sure U. Loss of endothelial programmed cell death 10 activates glioblastoma cells and promotes tumor growth. Neuro Oncol 2015; 18:538-48. [PMID: 26254477 DOI: 10.1093/neuonc/nov155] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 07/15/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Neo-angiogenesis is a hallmark of glioblastoma (GBM) and is sustained by autocrine and paracrine interactions between neoplastic and nonneoplastic cells. Programmed cell death 10 (PDCD10) is ubiquitously expressed in nearly all tissues and plays crucial roles in regulating angiogenesis and apoptosis. We recently discovered the absence of PDCD10 expression in the tumor vessels of GBM patients. This raised the hypothesis that loss of endothelial PDCD10 affected GBM cell phenotyping and tumor progression. METHODS Endothelial PDCD10 was silenced by siRNA and lentiviral shRNA. The tumor cell phenotype was studied in direct and indirect co-culture of endothelial cells (ECs) with U87 or LN229. Angiogenic protein array was performed in the media of PDCD10-silenced ECs. Tumor angiogenesis and tumor growth were investigated in a human GBM xenograft mouse model. RESULTS Endothelial silence of PDCD10 significantly stimulated tumor cell proliferation, migration, adhesion, and invasion and inhibited apoptosis in co-cultures. Stable knockdown of endothelial PDCD10 increased microvessel density and the formation of a functional vascular network, leading to a 4-fold larger tumor mass in mice. Intriguingly, endothelial deletion of PDCD10 increased (≥2-fold) the release of 20 of 55 tested proangiogenic factors including VEGF, which in turn activated Erk1/2 and Akt in GBM cells. CONCLUSIONS For the first time, we provide evidence that loss of endothelial PDCD10 activates GBM cells and promotes tumor growth, most likely via a paracrine mechanism. PDCD10 shows a tumor-suppressor-like function in the cross talk between ECs and tumor cells and is potentially implicated in GBM progression.
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Affiliation(s)
- Yuan Zhu
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Kai Zhao
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Anja Prinz
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Kathy Keyvani
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Nicole Lambertz
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Ilonka Kreitschmann-Andermahr
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Ting Lei
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
| | - Ulrich Sure
- Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany (Y.Z., K.Z., A.P., N.L., I.K.-A., U.S.); Institute of Neuropathology, University of Duisburg-Essen, Essen, Germany (K.K.); Department of Neurosurgery, Tongji Medical College, Wuhan, China (K.Z., T.L.)
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20
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Jhaveri N, Chen TC, Hofman FM. Tumor vasculature and glioma stem cells: Contributions to glioma progression. Cancer Lett 2014; 380:545-551. [PMID: 25527451 DOI: 10.1016/j.canlet.2014.12.028] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 01/13/2023]
Abstract
Glioblastoma multiforme (GBM), the most malignant of brain tumors, is characterized by extensive vascularization and a high degree of invasion. The current standard of care is not very effective, resulting in tumor recurrence with patients rarely surviving over 2 years. This tumor recurrence is attributed to the presence of chemo and radiation resistant glioma stem cells (GSCs). These cells are associated with vascular niches which regulate GSC self-renewal and survival. Recent studies suggest that while blood vessels support glioma stem cells, these tumor cells in turn may regulate and contribute to the tumor vasculature by transdifferentiating into endothelial cells directly or through the secretion of regulatory growth factors such as vascular endothelial growth factor (VEGF) and hepatoma derived growth factor (HDGF). The relationship between the tumor vasculature and the glioma stem cells is the subject of this review.
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Affiliation(s)
- Niyati Jhaveri
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Thomas C Chen
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA; Department of Neurosurgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Florence M Hofman
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA; Department of Neurosurgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
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21
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Song Y, Mu L, Han X, Liu X, Fu S. siRNA targeting stathmin inhibits invasion and enhances chemotherapy sensitivity of stem cells derived from glioma cell lines. Acta Biochim Biophys Sin (Shanghai) 2014; 46:1034-40. [PMID: 25348735 DOI: 10.1093/abbs/gmu099] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Glioma is one of the most highly angiogenic tumors, and glioma stem cells (GSCs) are responsible for resistance to chemotherapy and radiotherapy, as well as recurrence after operation. Stathmin is substantial for mitosis and plays an important role in proliferation and migration of glioma-derived endothelial cells. However, the relationship between stathmin and GSCs is incompletely understood. Here we isolated GSCs from glioma cell lines U87MG and U251, and then used siRNA targeting stathmin for silencing. We showed that silencing of stathmin suppressed the proliferation, increased the apoptosis rate, and arrested the cell cycle at G2/M phase in GSCs. Silencing of stathmin in GSCs also resulted in inhibited the migration/invasion as well as the capability of vasculogenic mimicry. The susceptibility of GSCs to temozolomide was also enhanced by stathmin silencing. Our findings suggest stathmin as a potential target in GSCs for glioma treatment.
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Affiliation(s)
- Yuwen Song
- Department of Neurosurgery, the Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Luyan Mu
- Department of Neurosurgery, the Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xuezhe Han
- Neurosurgery and Vascular Biology Program, Children's Hospital Boston/Harvard Medical School, Boston, MA 02115, USA
| | - Xiaoqian Liu
- Department of Neurosurgery, the Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Songbin Fu
- Department of Genetics, Harbin Medical University, Harbin 150081, China
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22
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Yan GN, Yang L, Lv YF, Shi Y, Shen LL, Yao XH, Guo QN, Zhang P, Cui YH, Zhang X, Bian XW, Guo DY. Endothelial cells promote stem-like phenotype of glioma cells through activating the Hedgehog pathway. J Pathol 2014; 234:11-22. [PMID: 24604164 PMCID: PMC4260128 DOI: 10.1002/path.4349] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 02/20/2014] [Accepted: 02/27/2014] [Indexed: 01/05/2023]
Abstract
Microenvironmental regulation of cancer stem cells (CSCs) strongly influences the onset and spread of cancer. The way in which glioma cells interact with their microenvironment and acquire the phenotypes of CSCs remains elusive. We investigated how communication between vascular endothelial cells and glioma cells promoted the properties of glioma stem cells (GSCs). We observed that CD133+ GSCs were located closely to Shh+ endothelial cells in specimens of human glioblastoma multiforme (GBM). In both in vitro and in vivo studies, we found that endothelial cells promoted the appearance of CSC-like glioma cells, as demonstrated by increases in tumourigenicity and expression of stemness genes such as Sox2, Olig2, Bmi1 and CD133 in glioma cells that were co-cultured with endothelial cells. Knockdown of Smo in glioma cells led to a significant reduction of their CSC-like phenotype formation in vitro and in vivo. Endothelial cells with Shh knockdown failed to promote Hedgehog (HH) pathway activation and CSC-like phenotype formation in co-cultured glioma cells. By examination of glioma tissue specimens from 65 patients, we found that the survival of glioma patients was closely correlated with the expression of both Shh by endothelial cells and Gli1 by perivascular glioma cells. Taken together, our study demonstrates that endothelial cells in the tumour microenvironment provide Shh to activate the HH signalling pathway in glioma cells, thereby promoting GSC properties and glioma propagation. © 2014 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Guang-Ning Yan
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, 400038, People's Republic of China
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23
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Everson RG, Graner MW, Gromeier M, Vredenburgh JJ, Desjardins A, Reardon DA, Friedman HS, Friedman AH, Bigner DD, Sampson JH. Immunotherapy against angiogenesis-associated targets: evidence and implications for the treatment of malignant glioma. Expert Rev Anticancer Ther 2014; 8:717-32. [DOI: 10.1586/14737140.8.5.717] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Infanger DW, Cho Y, Lopez BS, Mohanan S, Liu SC, Gursel D, Boockvar JA, Fischbach C. Glioblastoma stem cells are regulated by interleukin-8 signaling in a tumoral perivascular niche. Cancer Res 2013; 73:7079-89. [PMID: 24121485 DOI: 10.1158/0008-5472.can-13-1355] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Glioblastoma multiforme contains a subpopulation of cancer stem-like cells (CSC) believed to underlie tumorigenesis and therapeutic resistance. Recent studies have localized CSCs in this disease adjacent to endothelial cells (EC) in what has been termed a perivascular niche, spurring investigation into the role of EC-CSC interactions in glioblastoma multiforme pathobiology. However, these studies have been limited by a lack of in vitro models of three-dimensional disease that can recapitulate the relevant conditions of the niche. In this study, we engineered a scaffold-based culture system enabling brain endothelial cells to form vascular networks. Using this system, we showed that vascular assembly induces CSC maintenance and growth in vitro and accelerates tumor growth in vivo through paracrine interleukin (IL)-8 signaling. Relative to conventional monolayers, endothelial cells cultured in this three-dimensional system not only secreted enhanced levels of IL-8 but also induced CSCs to upregulate the IL-8 cognate receptors CXCR1 and CXCR2, which collectively enhanced CSC migration, growth, and stemness properties. CXCR2 silencing in CSCs abolished the tumor-promoting effects of endothelial cells in vivo, confirming a critical role for this signaling pathway in GMB pathogenesis. Together, our results reveal synergistic interactions between endothelial cells and CSCs that promote the malignant properties of CSCs in an IL-8-dependent manner. Furthermore, our findings underscore the relevance of tissue-engineered cell culture platforms to fully analyze signaling mechanisms in the tumor microenvironment.
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Affiliation(s)
- David W Infanger
- Authors' Affiliations: Departments of Biomedical Engineering and Comparative Biomedical Sciences, Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York; Department of Veterinary Medicine, Colorado State University, Fort Collins, Colorado; and Laboratory for Translational Stem Cell Research, Weill Cornell Brain Tumor Center, Department of Neurological Surgery, Weill Cornell Medical College, New York
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25
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Yan GN, Lv YF, Yang L, Yao XH, Cui YH, Guo DEY. Glioma stem cells enhance endothelial cell migration and proliferation via the Hedgehog pathway. Oncol Lett 2013; 6:1524-1530. [PMID: 24179553 PMCID: PMC3813800 DOI: 10.3892/ol.2013.1569] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 08/27/2013] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to determine the possible mechanism underlying the enhanced migration and proliferation of endothelial cells caused by glioma stem cells (GSCs). Tumor spheres enriched in GSCs derived from the mouse GL261 glioma cell line, and the brain microvessel endothelial cell line, b.END3, were used in this study. A Transwell co-culture system, RNAi experiments, quantitative polymerase chain reaction, western blotting and enzyme-linked immunosorbent, cell counting kit-8 (CCK-8) proliferation, Transwell migration and wound-healing assays were used in this study to determine the migration and proliferation ability, as well as the Hedgehog (HH) pathway-related gene expression in the b.END3 cells. Based on the results, it was demonstrated that the migration and proliferation of the endothelial cells were enhanced following co-culture with GSCs. The gene expression of the HH pathway-related genes, Sonic Hedgehog (Shh) and Hedgehog-interacting protein (Hhip) was altered in the endothelial cells when co-cultured with GSCs. Overexpression of glioma-associated oncogene homolog 1 indicated activation of the HH pathway. Following knockdown of smoothened (Smo) in the endothelial cells, the migration and proliferation abilities of the cells were inhibited. GSCs have little effect on enhancing these behaviors in endothelial cells following Smo-knockdown. Further investigation revealed that Shh levels in the supernatant of the co-culture system were elevated, indicating the importance of secreted Shh from the endothelial cells. In conclusion, GSCs enhanced the migration and proliferation of the endothelial cells in vitro, which was likely associated with the activation of the HH pathway in the endothelial cells, caused by the increased secretion of Shh.
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Affiliation(s)
- Guang-Ning Yan
- Department of Pathology, Southwest Hospital, Third Military Medical University of PLA, Shapingba District, Chongqing 400038, P.R. China
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26
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Verreault M, Delattre JY, Idbaih A. Les tumeurs gliales diffuses de l’adulte. Med Sci (Paris) 2012; 28:813-6. [DOI: 10.1051/medsci/20122810005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Stapleton CJ, Armstrong DL, Zidovetzki R, Liu CY, Giannotta SL, Hofman FM. Thrombospondin-1 modulates the angiogenic phenotype of human cerebral arteriovenous malformation endothelial cells. Neurosurgery 2012; 68:1342-53; discussion 1353. [PMID: 21307796 DOI: 10.1227/neu.0b013e31820c0a68] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The management of cerebral arteriovenous malformation (AVM) is challenging, and invasive therapies place vital intracranial structures at risk of injury. The development of noninvasive, pharmacologic approaches relies on identifying factors that mediate key angiogenic processes. Previous studies indicate that endothelial cells (ECs) derived from cerebral AVM (AVM-ECs) are distinct from control brain ECs with regard to important angiogenic characteristics. OBJECTIVE To determine whether thrombospondin-1 (TSP-1), a potent angiostatic factor, regulates critical angiogenic features of AVM-ECs and to identify factors that modulate TSP-1 production in AVM-ECs. METHODS EC proliferation, migration, and tubule formation were evaluated with bromodeoxyuridine incorporation, Boyden chamber, and Matrigel studies, respectively. TSP-1 and inhibitor of DNA binding/differentiation 1 (Id1) mRNA levels were quantified with microarray and quantitative real-time polymerase chain reaction analyses. TSP-1 protein expression was measured using Western blotting, immunohistochemical, and enzyme-linked immunosorbent assay techniques. The mechanistic link between Id1 and TSP-1 was established through small interfering RNA-mediated knockdown of Id1 in AVM-ECs followed by Western blot and enzyme-linked immunosorbent assay experiments assessing TSP-1 production. RESULTS AVM-ECs proliferate faster, migrate more quickly, and form disorganized tubules compared with brain ECs. TSP-1 is significantly down-regulated in AVM-ECs. The addition of TSP-1 to AVM-EC cultures normalizes the rate of proliferation and migration and the efficiency of tubule formation, whereas brain ECs are unaffected. Id1 negatively regulates TSP-1 expression in AVM-ECs. CONCLUSION These data highlight a novel role for TSP-1 in the pathobiology of AVM angiogenesis and provide a context for its use in the clinical management of brain AVMs.
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Affiliation(s)
- Christopher J Stapleton
- Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA
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Kast RE, Lefranc F, Karpel-Massler G, Halatsch ME. Why dapsone stops seizures and may stop neutrophils' delivery of VEGF to glioblastoma. Br J Neurosurg 2012; 26:813-7. [PMID: 22551309 DOI: 10.3109/02688697.2012.674577] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Lopez-Gomez et al. recently published remarkable but mechanistically unexplained empirical evidence that the old antibiotic dapsone has antiepileptic activity. We addressed the question "Why should a sulfone antibiotic reduce seizures?". We report here our conclusions based on data from past studies that seizures are associated with elevated interleukin-8 (IL-8) and that dapsone inhibits IL-8 release and function in several different clinical and experimental contexts. Diverse CNS insults cause an increase in CNS IL-8. Thus, the pro-inflammatory environment generated by increase IL-8 leads to a lower seizure threshold. Together this evidence indicates dapsone exerts anti-seizure activity by diminishing IL-8 signalling. Since IL-8 is clearly upregulated in glioblastoma and contributes to the florid angiogenesis of that disease, and since interference with IL-8 function has been shown to inhibit glioblastoma invasion and growth in several experimental models, and dapsone has been repeatedly been shown to clinically inhibit IL-8 function when used to treat human neutrophilic dermatoses, we believe that dapsone thereby reduces seizures by countering IL-8 function and may similarly retard glioblastoma growth by such anti-IL-8 function.
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Affiliation(s)
- R E Kast
- Department of Psychiatry, University of Vermont, Burlington, VT 05401, USA.
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Alves TR, Lima FRS, Kahn SA, Lobo D, Dubois LGF, Soletti R, Borges H, Neto VM. Glioblastoma cells: A heterogeneous and fatal tumor interacting with the parenchyma. Life Sci 2011; 89:532-9. [DOI: 10.1016/j.lfs.2011.04.022] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 04/19/2011] [Accepted: 04/27/2011] [Indexed: 10/25/2022]
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Kast RE. Glioblastoma: synergy of growth promotion between CCL5 and NK-1R can be thwarted by blocking CCL5 with miraviroc, an FDA approved anti-HIV drug and blocking NK-1R with aprepitant, an FDA approved anti-nausea drug. J Clin Pharm Ther 2011; 35:657-63. [PMID: 21054456 DOI: 10.1111/j.1365-2710.2009.01148.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
WHAT IS KNOWN AND BACKGROUND Two receptor signaling pathways that are commonly active in facilitating glioblastoma growth and invasion- that of CCR5 and neurokinin (NK)-1R- have small molecule inhibitors that are FDA approved and marketed to treat other conditions. The anti-HIV drug, maraviroc, inhibits human CCR5's ligand from binding, and hence blocks CCR5 stimulation. The anti-nausea drug aprepitant blocks substance P signaling at NK-1R. AIMS AND OBJECTIVE We propose on the basis of molecular insights that a combination of the two drugs is likely to be useful in the treatment of glioblastoma. COMMENT After stimulation by their respective ligands both CCR5 and NK-1R, through intermediaries, phosphorylate and thereby activate ERK1/2, triggering in turn migratory and mitotic events. Neurokinin-1R second messenger signaling also happens to serine phosphorylate CCR5. Phosphorylated CCR5 exhibits amplified activity after agonist ligation. Therefore, aprepitant and maraviroc combined treatment is expected to exert synergestic inhibition of growth enhancing signaling in glioblastoma. Inhibiting an amplifier is equivalent to amplifying an inhibitor. Since the two suggested drugs are non-cytotoxic they are envisioned as adjunctive treatments to current standard temozolomide, radiation, and bevacizumab, all to be used after debulking primary resection. WHAT IS NEW AND CONCLUSION Our analysis makes the case for a well-designed trial of the proposed combination in the treatment of glioblastoma.
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Affiliation(s)
- R E Kast
- Department of Psychiatry, University of Vermont, Burlington, VT 05401, USA.
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Dong D, Stapleton C, Luo B, Xiong S, Ye W, Zhang Y, Jhaveri N, Zhu G, Ye R, Liu Z, Bruhn KW, Craft N, Groshen S, Hofman FM, Lee AS. A critical role for GRP78/BiP in the tumor microenvironment for neovascularization during tumor growth and metastasis. Cancer Res 2011; 71:2848-57. [PMID: 21467168 DOI: 10.1158/0008-5472.can-10-3151] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Glucose-regulated protein 78 (GRP78)/BiP is a multifunctional protein which plays a major role in endoplasmic reticulum (ER) protein processing, protein quality control, maintaining ER homeostasis, and controlling cell signaling and viability. Previously, using a transgene-induced mammary tumor model, we showed that Grp78 heterozygosity impeded cancer growth through suppression of tumor cell proliferation and promotion of apoptosis and the Grp78(+/-) mice exhibited dramatic reduction (70%) in the microvessel density (MVD) of the endogenous mammary tumors, while having no effect on the MVD of normal organs. This observation suggests that GRP78 may critically regulate the function of the host vasculature within the tumor microenvironment. In this article, we interrogated the role of GRP78 in the tumor microenvironment. In mouse tumor models in which wild-type (WT), syngeneic mammary tumor cells were injected into the host, we showed that Grp78(+/-) mice suppressed tumor growth and angiogenesis during the early phase but not during the late phase of tumor growth. Growth of metastatic lesions of WT, syngeneic melanoma cells in the Grp78(+/-) mice was potently suppressed. We created conditional heterozygous knockout of GRP78 in the host endothelial cells and showed severe reduction of tumor angiogenesis and metastatic growth, with minimal effect on normal tissue MVD. Furthermore, knockdown of GRP78 expression in immortalized human endothelial cells showed that GRP78 is a critical mediator of angiogenesis by regulating cell proliferation, survival, and migration. Our findings suggest that concomitant use of current chemotherapeutic agents and novel therapies against GRP78 may offer a powerful dual approach to arrest cancer initiation, progression, and metastasis.
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Affiliation(s)
- Dezheng Dong
- Department of Biochemistry and Molecular Biology, USC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California 90089, USA
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Keeley EC, Mehrad B, Strieter RM. Chemokines as mediators of tumor angiogenesis and neovascularization. Exp Cell Res 2010; 317:685-90. [PMID: 21040721 DOI: 10.1016/j.yexcr.2010.10.020] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 10/25/2010] [Indexed: 12/11/2022]
Abstract
Chemokines are a superfamily of structurally homologous heparin-binding proteins that influence tumor growth and metastasis. Several members of the CXC and CC chemokine families are potent inducers of neovascularization, whereas a subset of the CXC chemokines are potent inhibitors. In this paper, we review the current literature regarding the role of chemokines as mediators of tumor angiogenesis and neovascularization.
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Affiliation(s)
- Ellen C Keeley
- Department of Medicine, Division of Cardiology, University of Virginia, Charlottesville, VA, USA
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Liu Y, Carson-Walter EB, Cooper A, Winans BN, Johnson MD, Walter KA. Vascular gene expression patterns are conserved in primary and metastatic brain tumors. J Neurooncol 2010; 99:13-24. [PMID: 20063114 PMCID: PMC2904485 DOI: 10.1007/s11060-009-0105-0] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Accepted: 12/14/2009] [Indexed: 01/07/2023]
Abstract
Malignant primary glial and secondary metastatic brain tumors represent distinct pathological entities. Nevertheless, both tumor types induce profound angiogenic responses in the host brain microvasculature that promote tumor growth. We hypothesized that primary and metastatic tumors induce similar microvascular changes that could function as conserved angiogenesis based therapeutic targets. We previously isolated glioma endothelial marker genes (GEMs) that were selectively upregulated in the microvasculature of proliferating glioblastomas. We sought to determine whether these genes were similarly induced in the microvasculature of metastatic brain tumors. RT-PCR and quantitative RT-PCR were used to screen expression levels of 20 candidate GEMs in primary and metastatic clinical brain tumor specimens. Differentially regulated GEMs were further evaluated by immunohistochemistry or in situ hybridization to localize gene expression using clinical tissue microarrays. Thirteen GEMs were upregulated to a similar degree in both primary and metastatic brain tumors. Most of these genes localize to the cell surface (CXCR7, PV1) or extracellular matrix (COL1A1, COL3A1, COL4A1, COL6A2, MMP14, PXDN) and were selectively expressed by the microvasculature. The shared expression profile between primary and metastatic brain tumors suggests that the molecular pathways driving the angiogenic response are conserved, despite differences in the tumor cells themselves. Anti-angiogenic therapies currently in development for primary brain tumors may prove beneficial for brain metastases and vice versa.
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Affiliation(s)
- Yang Liu
- Department of Neurosurgery, University of Rochester, 601 Elmwood Avenue, Box 670, Rochester, NY 14642, USA
| | - Eleanor B. Carson-Walter
- Department of Neurosurgery, University of Rochester, 601 Elmwood Avenue, Box 670, Rochester, NY 14642, USA
| | - Anna Cooper
- Department of Neurosurgery, University of Rochester, 601 Elmwood Avenue, Box 670, Rochester, NY 14642, USA
| | - Bethany N. Winans
- Department of Neurosurgery, University of Rochester, 601 Elmwood Avenue, Box 670, Rochester, NY 14642, USA
| | - Mahlon D. Johnson
- Department of Neuropathology, University of Rochester, Rochester, NY, USA
| | - Kevin A. Walter
- Department of Neurosurgery, University of Rochester, 601 Elmwood Avenue, Box 670, Rochester, NY 14642, USA
- James P. Wilmot Cancer Center, University of Rochester, Rochester, NY, USA
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Kast RE. Use of FDA approved methamphetamine to allow adjunctive use of methylnaltrexone to mediate core anti-growth factor signaling effects in glioblastoma. J Neurooncol 2009; 94:163-7. [PMID: 19322519 DOI: 10.1007/s11060-009-9863-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 03/16/2009] [Indexed: 10/21/2022]
Abstract
Methylnaltrexone (MNTX) was recently FDA approved to treat opiate induced constipation. It happens to also indirectly reduce Src activity. Src is a 54 kDa tyrosine kinase, crucial in signaling of, and link between, vascular endothelial growth factor (VEGF), and epidermal growth factor (EGF). Glioblastomas use both EGF and VEGF signaling to enhance growth and neo-angiogenesis. Stem cell sub-fractions of glioblastomas are enriched for high VEGF synthesizing cells so this is a particularly valuable adjunctive target during cytotoxic treatment with drugs like temozolomide. MNTX does not cross the blood-brain barrier (BBB). Methamphetamine (MA) temporarily opens the BBB and therefore may allow methylnaltrexone entry into glioblastoma tissue. MA is FDA approved, marketed to treat attention problems in children. MA-MNTX combination should be tested as glioblastoma treatment adjunct. Temozolomide CSF levels are 10-20% of blood levels. Thus MA may also allow greater brain tissue temozolomide levels yet with lower systemic exposure.
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Affiliation(s)
- R E Kast
- University of Vermont, 2 Church Street, Burlington, VT 05401, USA.
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Jabbour MN, Elder JB, Samuelson CG, Khashabi S, Hofman FM, Giannotta SL, Liu CY. ABERRANT ANGIOGENIC CHARACTERISTICS OF HUMAN BRAIN ARTERIOVENOUS MALFORMATION ENDOTHELIAL CELLS. Neurosurgery 2009; 64:139-46; discussion 146-8. [PMID: 19145162 DOI: 10.1227/01.neu.0000334417.56742.24] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Abstract
OBJECTIVE
To identify and characterize the phenotypic and functional differences of endothelial cells derived from cerebral arteriovenous malformations (AVM), as compared with endothelial cells derived from a normal brain.
METHODS
Isolated AVM brain endothelial cells and control brain endothelial cells were evaluated immunohistochemically for expression of the endothelial cell markers von Willebrand factor and CD31, as well as angiogenic factors including vascular endothelial growth factor A, interleukin-8, and endothelin-1. Vascular endothelial growth factor receptors 1 and 2 were also evaluated using immunohistochemistry techniques. Functional assays evaluated cell proliferation, cytokine production, tubule formation, and cell migration using the modified Boyden chamber technique.
RESULTS
Endothelial cells derived from AVMs expressed high levels of vascular endothelial growth factor A and significantly overexpressed the vascular endothelial growth factor receptors 1 and 2 (P < 0.05), as compared with control endothelial cells. In addition, comparison to control brain endothelial cells demonstrated that AVM brain endothelial cells proliferated faster, migrated more quickly, and produced aberrant tubule-like structures.
CONCLUSION
Endothelial cells derived from cerebral AVMs are highly activated cells overexpressing proangiogenic growth factors and exhibiting abnormal functions consistent with highly activated endothelial cells.
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Affiliation(s)
- Mark N. Jabbour
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - James B. Elder
- Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California
| | | | - Shabnam Khashabi
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Florence M. Hofman
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Steven L. Giannotta
- Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Charles Y. Liu
- Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
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Schor NF. Pharmacotherapy for adults with tumors of the central nervous system. Pharmacol Ther 2008; 121:253-64. [PMID: 19091301 DOI: 10.1016/j.pharmthera.2008.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 11/07/2008] [Indexed: 11/18/2022]
Abstract
Tumors of the adult central nervous system are among the most common and most chemoresistant neoplasms. Malignant tumors of the brain and spinal cord collectively account for approximately 1.3% of all cancers and 2.2% of all cancer-related deaths. Novel pharmacological approaches to nervous system tumors are urgently needed. This review presents the current approaches and challenges to successful pharmacotherapy of adults with malignant tumors of the central nervous system and discusses novel approaches aimed at overcoming these challenges.
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Affiliation(s)
- Nina F Schor
- Departments of Pediatrics, Neurology, and Neurobiology & Anatomy, University of Rochester Medical Center, Rochester, NY, USA.
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37
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Keeley EC, Mehrad B, Strieter RM. Chemokines as mediators of neovascularization. Arterioscler Thromb Vasc Biol 2008; 28:1928-36. [PMID: 18757292 DOI: 10.1161/atvbaha.108.162925] [Citation(s) in RCA: 151] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chemokines are a superfamily of homologous heparin-binding proteins, first described for their role in recruiting leukocytes to sites of inflammation. Chemokines have since been recognized as key factors mediating both physiological and pathological neovascularization in such diverse clinical settings as malignancy, wound repair, chronic fibroproliferative disorders, myocardial ischemia, and atherosclerosis. Members of the CXC chemokine family, structurally defined as containing the ELR amino acid motif, are potent inducers of angiogenesis, whereas another subset of the CXC chemokines inhibits angiogenesis. In addition, CCL2, a CC chemokine ligand, has been implicated in arteriogenesis. In this article, we review the current literature on the role of chemokines as mediators of neovascularization.
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Affiliation(s)
- Ellen C Keeley
- Department of Medicine, Division of Cardiology, University of Virginia, Charlottesville, VA 22908-0466, USA
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Barami K. Relationship of neural stem cells with their vascular niche: implications in the malignant progression of gliomas. J Clin Neurosci 2008; 15:1193-7. [PMID: 18617407 DOI: 10.1016/j.jocn.2008.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2007] [Revised: 01/08/2008] [Accepted: 01/08/2008] [Indexed: 11/25/2022]
Abstract
During embryogenesis and in regions of the adult brain undergoing post-natal neurogenesis, neural stem cells and endothelial precursors are found within a vascular niche, where the coordinated interactions between neurogenesis and vasculogenesis dictates development and responses to the environment. Moreover, recent evidence suggests that gliomas may arise from transformed neural stem cells and that angiogenesis is important in the malignant progression of these tumors. Taken together, these findings have led researchers to focus on the dynamic interaction between neural stem cells and their vascular niche so as to find new therapeutic strategies to halt the progression of gliomas. This review summarizes the cellular substrates responsible for the coordinated interactions between the nervous and vascular systems and how this relates to gliomagenesis.
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Affiliation(s)
- Kaveh Barami
- Memorial Neuroscience Center, Memorial Hospital Jacksonville, 3625 University Boulevard South, Jacksonville, Florida 32216, USA.
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Stathopoulos A, Samuelson C, Milbouw G, Hermanne JP, Schijns VEJ, Chen TC. Therapeutic vaccination against malignant gliomas based on allorecognition and syngeneic tumor antigens: Proof of principle in two strains of rat. Vaccine 2008; 26:1764-72. [DOI: 10.1016/j.vaccine.2008.01.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 12/20/2007] [Accepted: 01/11/2008] [Indexed: 11/30/2022]
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40
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Dong D, Ni M, Li J, Xiong S, Ye W, Virrey JJ, Mao C, Ye R, Wang M, Pen L, Dubeau L, Groshen S, Hofman FM, Lee AS. Critical Role of the Stress Chaperone GRP78/BiP in Tumor Proliferation, Survival, and Tumor Angiogenesis in Transgene-Induced Mammary Tumor Development. Cancer Res 2008; 68:498-505. [DOI: 10.1158/0008-5472.can-07-2950] [Citation(s) in RCA: 300] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Wu M, Huang C, Li X, Li X, Gan K, Chen Q, Tang Y, Tang K, Shen S, Li G. LRRC4 inhibits glioblastoma cell proliferation, migration, and angiogenesis by downregulating pleiotropic cytokine expression and responses. J Cell Physiol 2007; 214:65-74. [PMID: 17541939 DOI: 10.1002/jcp.21163] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Leucine-rich repeat C4 (LRRC4) has been shown to inhibit glioma cell proliferation, however, little is known about the mechanism(s) underlying the action of LRRC4. Here, we show that two glioblstoma U251 cell clones stably expressing LRRC4 were established. LRRC4 expression significantly inhibited the expression of some cytokines and their receptors determined by microarray and Western blot assays, and dramatically reduced cytokine-induced AP-1, NF-kB, and CyclinD1 activation in glioma cells. Furthermore, LRRC4 expression in glioma cells significantly downregulated spontaneous and cytokine-induced expression of K-RAS and phosphorylation of c-Raf, ERK, AKT, NF-kBp65, p70S6K, and PKC, suggesting that LRRC4 inhibited receptor tyrosine kinase (RTK) signaling pathways. Moreover, treatment with bFGF, IGF1, or IGF2 stimulated LRRC4(-/-), but not the LRRC4(+), glioma cell proliferation, indicating that LRRC4 mitigated cytokine-stimulated proliferation in glioma cells. In addition, treatment of LRRC4(-/-) glioma cells with EGF, IGF2, or PDGF promoted long distance mobilization, but induced little migration in LRRC4(+) glioma cells, suggesting that LRRC4 retarded cytokine-promoted glioma cell migration in vitro. Finally, human vessel endothelial cells (ECV304) treated with VEGF grew, aligned and formed hollow tube-like structures in vitro. In contrast, LRRC4(+) ECV304 treated with VEGF failed to form vessel-tube structures. Collectively, LRRC4 expression inhibited the expression of some growth factors, cytokines and their receptors, and the capacity of glioma cells responding to cytokine stimulation, leading to inhibition of glioma cell proliferation. Conceivably, induction of LRRC4 expression may provide new intervention for human glioma in the clinic.
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Affiliation(s)
- Minghua Wu
- Cancer Research Institute, Central South University, Changsha, Hunan, The People's Republic of China
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42
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Kirn DH, Wang Y, Le Boeuf F, Bell J, Thorne SH. Targeting of interferon-beta to produce a specific, multi-mechanistic oncolytic vaccinia virus. PLoS Med 2007; 4:e353. [PMID: 18162040 PMCID: PMC2222946 DOI: 10.1371/journal.pmed.0040353] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Accepted: 10/30/2007] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Oncolytic viruses hold much promise for clinical treatment of many cancers, but a lack of systemic delivery and insufficient tumor cell killing have limited their usefulness. We have previously demonstrated that vaccinia virus strains are capable of systemic delivery to tumors in mouse models, but infection of normal tissues remains an issue. We hypothesized that interferon-beta (IFN-beta) expression from an oncolytic vaccinia strain incapable of responding to this cytokine would have dual benefits as a cancer therapeutic: increased anticancer effects and enhanced virus inactivation in normal tissues. We report the construction and preclinical testing of this virus. METHODS AND FINDINGS In vitro screening of viral strains by cytotoxicity and replication assay was coupled to cellular characterization by phospho-flow cytometry in order to select a novel oncolytic vaccinia virus. This virus was then examined in vivo in mouse models by non-invasive imaging techniques. A vaccinia B18R deletion mutant was selected as the backbone for IFN-beta expression, because the B18R gene product neutralizes secreted type-I IFNs. The oncolytic B18R deletion mutant demonstrated IFN-dependent cancer selectivity and efficacy in vitro, and tumor targeting and efficacy in mouse models in vivo. Both tumor cells and tumor-associated vascular endothelial cells were targeted. Complete tumor responses in preclinical models were accompanied by immune-mediated protection against tumor rechallenge. Cancer selectivity was also demonstrated in primary human tumor explant tissues and adjacent normal tissues. The IFN-beta gene was then cloned into the thymidine kinase (TK) region of this virus to create JX-795 (TK-/B18R-/IFN-beta+). JX-795 had superior tumor selectivity and systemic intravenous efficacy when compared with the TK-/B18R- control or wild-type vaccinia in preclinical models. CONCLUSIONS By combining IFN-dependent cancer selectivity with IFN-beta expression to optimize both anticancer effects and normal tissue antiviral effects, we were able to achieve, to our knowledge for the first time, tumor-specific replication, IFN-beta gene expression, and efficacy following systemic delivery in preclinical models.
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MESH Headings
- Animals
- Cell Survival
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Genes, Reporter
- HCT116 Cells
- Haplorhini
- Humans
- Interferon-alpha/metabolism
- Interferon-beta/genetics
- Interferon-beta/metabolism
- Luciferases
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- NIH 3T3 Cells
- Neoplasms, Experimental/blood supply
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- Oncolytic Virotherapy
- Oncolytic Viruses/genetics
- Oncolytic Viruses/metabolism
- Sequence Deletion
- Thymidine Kinase/genetics
- Thymidine Kinase/metabolism
- Time Factors
- Tissue Distribution
- Vaccinia virus/enzymology
- Vaccinia virus/genetics
- Vaccinia virus/metabolism
- Viral Proteins/genetics
- Viral Proteins/metabolism
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Affiliation(s)
- David H Kirn
- Jennerex Biotherapeutics, San Francisco, California, United States of America
- Clinical Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Yaohe Wang
- Cancer Research UK Molecular Oncology Centre, Queen Mary's School of Medicine and Dentistry, Charterhouse Square, London, United Kingdom
| | | | - John Bell
- Ottawa Health Research Institute, Ottawa, Ontario, Canada
| | - Steve H Thorne
- Jennerex Biotherapeutics, San Francisco, California, United States of America
- Department of Pediatrics and Bio-X Program, Stanford University, Stanford, California, United States of America
- * To whom correspondence should be addressed. E-mail:
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