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Roy C, Avril S, Legendre C, Lelièvre B, Vellenriter H, Boni S, Cayon J, Guillet C, Guilloux Y, Chérel M, Hindré F, Garcion E. A role for ceruloplasmin in the control of human glioblastoma cell responses to radiation. BMC Cancer 2022; 22:843. [PMID: 35918659 PMCID: PMC9347084 DOI: 10.1186/s12885-022-09808-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/16/2022] [Indexed: 11/08/2022] Open
Abstract
Background Glioblastoma (GB) is the most common and most aggressive malignant brain tumor. In understanding its resistance to conventional treatments, iron metabolism and related pathways may represent a novel avenue. As for many cancer cells, GB cell growth is dependent on iron, which is tightly involved in red-ox reactions related to radiotherapy effectiveness. From new observations indicating an impact of RX radiations on the expression of ceruloplasmin (CP), an important regulator of iron metabolism, the aim of the present work was to study the functional effects of constitutive expression of CP within GB lines in response to beam radiation depending on the oxygen status (21% O2 versus 3% O2). Methods and results After analysis of radiation responses (Hoechst staining, LDH release, Caspase 3 activation) in U251-MG and U87-MG human GB cell lines, described as radiosensitive and radioresistant respectively, the expression of 9 iron partners (TFR1, DMT1, FTH1, FTL, MFRN1, MFRN2, FXN, FPN1, CP) were tested by RTqPCR and western blots at 3 and 8 days following 4 Gy irradiation. Among those, only CP was significantly downregulated, both at transcript and protein levels in the two lines, with however, a weaker effect in the U87-MG, observable at 3% O2. To investigate specific role of CP in GB radioresistance, U251-MG and U87-MG cells were modified genetically to obtain CP depleted and overexpressing cells, respectively. Manipulation of CP expression in GB lines demonstrated impact both on cell survival and on activation of DNA repair/damage machinery (γH2AX); specifically high levels of CP led to increased production of reactive oxygen species, as shown by elevated levels of superoxide anion, SOD1 synthesis and cellular Fe2 + . Conclusions Taken together, these in vitro results indicate for the first time that CP plays a positive role in the efficiency of radiotherapy on GB cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09808-6.
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Affiliation(s)
- Charlotte Roy
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France
| | - Sylvie Avril
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France
| | - Claire Legendre
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France
| | - Bénédicte Lelièvre
- Centre Régional de Pharmacovigilance, Laboratoire de Pharmacologie-Toxicologie, CHU Angers, 4 rue Larrey, F-49100, Angers, France
| | - Honorine Vellenriter
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France
| | - Sébastien Boni
- Université d'Angers, SFR ICAT, Lentivec, F-49000, Angers, France
| | - Jérôme Cayon
- Université d'Angers, SFR ICAT, PACeM, F-49000, Angers, France
| | | | - Yannick Guilloux
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d'Angers, CRCI2NA, F-44000, Nantes, France
| | - Michel Chérel
- Nantes Université, Inserm UMR 1307, CNRS UMR 6075, Université d'Angers, CRCI2NA, F-44000, Nantes, France
| | - François Hindré
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France.,Université d'Angers, SFR ICAT, PRIMEX, F-49000, Angers, France
| | - Emmanuel Garcion
- Université d'Angers, Inserm UMR 1307, CNRS UMR 6075, Nantes Université, CRCI2NA, F-49000, Angers, France. .,Université d'Angers, SFR ICAT, PACeM, F-49000, Angers, France. .,Université d'Angers, SFR ICAT, PRIMEX, F-49000, Angers, France. .,GLIAD - Design and Application of Innovative Local Treatments in Glioblastoma, CRCI2NA, Team 5, Inserm UMR 1307, CNRS UMR 6075, Institut de Biologie en Santé (IBS) - CHU, 4 rue Larrey, Angers, France.
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2
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Lee PJ, Ho CC, Ho H, Chen WJ, Lin CH, Lai YH, Juan YC, Chu WC, Lee JH, Su SF, Chen HY, Chen JJW, Chang GC, Li KC, Yang PC, Chen HW. Tumor microenvironment-based screening repurposes drugs targeting cancer stem cells and cancer-associated fibroblasts. Am J Cancer Res 2021; 11:9667-9686. [PMID: 34646392 PMCID: PMC8490509 DOI: 10.7150/thno.62676] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/31/2021] [Indexed: 01/23/2023] Open
Abstract
The tumorous niche may drive the plasticity of heterogeneity and cancer stemness, leading to drug resistance and metastasis, which is the main reason of treatment failure in most cancer patients. The aim of this study was to establish a tumor microenvironment (TME)-based screening to identify drugs that can specifically target cancer stem cells (CSCs) and cancer-associated fibroblasts (CAFs) in the TME. Methods: Lung cancer patient-derived cancer cell and CAFs were utilized to mimic the TME and reproduce the stemness properties of CSCs in vitro and develop a high-throughput drug screening platform with phenotypical parameters. Limiting dilution assay, sphere-forming and ALDH activity assay were utilized to measure the cancer stemness characteristics. In vivo patient-derived xenograft (PDX) models and single-cell RNA sequencing were used to evaluate the mechanisms of the compounds in CSCs and CAFs. Results: The TME-based drug screening platform could comprehensively evaluate the response of cancer cells, CSCs and CAFs to different treatments. Among the 1,524 compounds tested, several drugs were identified to have anti-CAFs, anticancer and anti-CSCs activities. Aloe-emodin and digoxin both show anticancer and anti-CSCs activity in vitro and in vivo, which was further confirmed in the lung cancer PDX model. The combination of digoxin and chemotherapy improved therapeutic efficacy. The single-cell transcriptomics analysis revealed that digoxin could suppress the CSCs subpopulation in CAFs-cocultured cancer cells and cytokine production in CAFs. Conclusions: The TME-based drug screening platform provides a tool to identify and repurpose compounds targeting cancer cells, CSCs and CAFs, which may accelerate drug development and therapeutic application for lung cancer patients.
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Pibuel MA, Poodts D, Díaz M, Hajos SE, Lompardía SL. The scrambled story between hyaluronan and glioblastoma. J Biol Chem 2021; 296:100549. [PMID: 33744285 PMCID: PMC8050860 DOI: 10.1016/j.jbc.2021.100549] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 02/06/2023] Open
Abstract
Advances in cancer biology are revealing the importance of the cancer cell microenvironment on tumorigenesis and cancer progression. Hyaluronan (HA), the main glycosaminoglycan in the extracellular matrix, has been associated with the progression of glioblastoma (GBM), the most frequent and lethal primary tumor in the central nervous system, for several decades. However, the mechanisms by which HA impacts GBM properties and processes have been difficult to elucidate. In this review, we provide a comprehensive assessment of the current knowledge on HA's effects on GBM biology, introducing its primary receptors CD44 and RHAMM and the plethora of relevant downstream signaling pathways that can scramble efforts to directly link HA activity to biological outcomes. We consider the complexities of studying an extracellular polymer and the different strategies used to try to capture its function, including 2D and 3D in vitro studies, patient samples, and in vivo models. Given that HA affects not only migration and invasion, but also cell proliferation, adherence, and chemoresistance, we highlight the potential role of HA as a therapeutic target. Finally, we review the different existing approaches to diminish its protumor effects, such as the use of 4-methylumbelliferone, HA oligomers, and hyaluronidases and encourage further research along these lines in order to improve the survival and quality of life of GBM patients.
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Affiliation(s)
- Matías Arturo Pibuel
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Capital Federal, Argentina.
| | - Daniela Poodts
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Capital Federal, Argentina
| | - Mariángeles Díaz
- Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Capital Federal, Argentina
| | - Silvia Elvira Hajos
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Capital Federal, Argentina
| | - Silvina Laura Lompardía
- Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Instituto de Estudios de la Inmunidad Humoral (IDEHU)-CONICET, Universidad de Buenos Aires, Capital Federal, Argentina.
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4
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López de Andrés J, Griñán-Lisón C, Jiménez G, Marchal JA. Cancer stem cell secretome in the tumor microenvironment: a key point for an effective personalized cancer treatment. J Hematol Oncol 2020; 13:136. [PMID: 33059744 PMCID: PMC7559894 DOI: 10.1186/s13045-020-00966-3] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 09/23/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer stem cells (CSCs) represent a tumor subpopulation responsible for tumor metastasis and resistance to chemo- and radiotherapy, ultimately leading to tumor relapse. As a consequence, the detection and eradication of this cell subpopulation represent a current challenge in oncology medicine. CSC phenotype is dependent on the tumor microenvironment (TME), which involves stem and differentiated tumor cells, as well as different cell types, such as mesenchymal stem cells, endothelial cells, fibroblasts and cells of the immune system, in addition to the extracellular matrix (ECM), different in composition to the ECM in healthy tissues. CSCs regulate multiple cancer hallmarks through the interaction with cells and ECM in their environment by secreting extracellular vesicles including exosomes, and soluble factors such as interleukins, cytokines, growth factors and other metabolites to the TME. Through these factors, CSCs generate and activate their own tumor niche by recruiting stromal cells and modulate angiogenesis, metastasis, resistance to antitumor treatments and their own maintenance by the secretion of different factors such as IL-6, VEGF and TGF-ß. Due to the strong influence of the CSC secretome on disease development, the new antitumor therapies focus on targeting these communication networks to eradicate the tumor and prevent metastasis, tumor relapse and drug resistance. This review summarizes for the first time the main components of the CSC secretome and how they mediate different tumor processes. Lastly, the relevance of the CSC secretome in the development of more precise and personalized antitumor therapies is discussed.
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Affiliation(s)
- Julia López de Andrés
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18100, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospitals of Granada-University of Granada, 18100, Granada, Spain.,Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - Carmen Griñán-Lisón
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18100, Granada, Spain.,Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospitals of Granada-University of Granada, 18100, Granada, Spain.,Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - Gema Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18100, Granada, Spain. .,Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospitals of Granada-University of Granada, 18100, Granada, Spain. .,Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain. .,Department of Health Sciences, University of Jaén, 23071, Jaén, Spain.
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, 18100, Granada, Spain. .,Instituto de Investigación Biosanitaria Ibs.GRANADA, University Hospitals of Granada-University of Granada, 18100, Granada, Spain. .,Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain. .,Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, 18016, Granada, Spain.
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5
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Efremov YR, Proskurina AS, Potter EA, Dolgova EV, Efremova OV, Taranov OS, Ostanin AA, Chernykh ER, Kolchanov NA, Bogachev SS. Cancer Stem Cells: Emergent Nature of Tumor Emergency. Front Genet 2018; 9:544. [PMID: 30505319 PMCID: PMC6250818 DOI: 10.3389/fgene.2018.00544] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/26/2018] [Indexed: 12/12/2022] Open
Abstract
A functional analysis of 167 genes overexpressed in Krebs-2 tumor initiating cells was performed. In the first part of the study, the genes were analyzed for their belonging to one or more of the three groups, which represent the three major phenotypic manifestation of malignancy of cancer cells, namely (1) proliferative self-sufficiency, (2) invasive growth and metastasis, and (3) multiple drug resistance. 96 genes out of 167 were identified as possible contributors to at least one of these fundamental properties. It was also found that substantial part of these genes are also known as genes responsible for formation and/or maintenance of the stemness of normal pluri-/multipotent stem cells. These results suggest that the malignancy is simply the ability to maintain the stem cell specific genes expression profile, and, as a consequence, the stemness itself regardless of the controlling effect of stem niches. In the second part of the study, three stress factors combined into the single concept of "generalized cellular stress," which are assumed to activate the expression of these genes, were defined. In addition, possible mechanisms for such activation were identified. The data obtained suggest the existence of a mechanism for the de novo formation of a pluripotent/stem phenotype in the subpopulation of "committed" tumor cells.
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Affiliation(s)
- Yaroslav R Efremov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Anastasia S Proskurina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina A Potter
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Evgenia V Dolgova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Oksana V Efremova
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Oleg S Taranov
- The State Research Center of Virology and Biotechnology Vector, Koltsovo, Russia
| | - Aleksandr A Ostanin
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Elena R Chernykh
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Nikolay A Kolchanov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey S Bogachev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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Abbritti RV, Polito F, Cucinotta M, Lo Giudice C, Caffo M, Tomasello C, Germanò A, Aguennouz M. Meningiomas and Proteomics: Focus on New Potential Biomarkers and Molecular Pathways. Cancer Genomics Proteomics 2016; 13:369-379. [PMID: 27566655 PMCID: PMC5070626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/25/2016] [Indexed: 06/06/2023] Open
Abstract
Meningiomas are one of the most common tumors affecting the central nervous system, exhibiting a great heterogeneity in grading, treatment and molecular background. This article provides an overview of the current literature regarding the molecular aspect of meningiomas. Analysis of potential biomarkers in serum, cerebrospinal fluid (CSF) and pathological tissues was reported. Applying bioinformatic methods and matching the common proteic profile, arising from different biological samples, we highlighted the role of nine proteins, particularly related to tumorigenesis and grading of meningiomas: serpin peptidase inhibitor alpha 1, ceruloplasmin, hemopexin, albumin, C3, apolipoprotein, haptoglobin, amyloid-P-component serum and alpha-1-beta-glycoprotein. These proteins and their associated pathways, including complement and coagulation cascades, plasma lipoprotein particle remodeling and lipid metabolism could be considered possible diagnostic, prognostic biomarkers, and eventually therapeutic targets. Further investigations are needed to better characterize the role of these proteins and pathways in meningiomas. The role of new therapeutic strategies are also discussed.
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Affiliation(s)
- Rosaria Viola Abbritti
- Biomedical Sciences and Morphological and Functional Imaging, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Francesca Polito
- Biomedical Sciences and Morphological and Functional Imaging, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Maria Cucinotta
- Clinical and Experimental Medicine, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Claudio Lo Giudice
- Clinical and Experimental Medicine, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Maria Caffo
- Biomedical Sciences and Morphological and Functional Imaging, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Chiara Tomasello
- Biomedical Sciences and Morphological and Functional Imaging, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Antonino Germanò
- Biomedical Sciences and Morphological and Functional Imaging, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
| | - Mohammed Aguennouz
- Clinical and Experimental Medicine, Gaetano Martino, Polyclinic University Hospital University of Messina, Messina, Italy
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Brandi J, Dalla Pozza E, Dando I, Biondani G, Robotti E, Jenkins R, Elliott V, Park K, Marengo E, Costello E, Scarpa A, Palmieri M, Cecconi D. Secretome protein signature of human pancreatic cancer stem-like cells. J Proteomics 2016; 136:1-12. [PMID: 26850699 DOI: 10.1016/j.jprot.2016.01.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 01/04/2016] [Accepted: 01/25/2016] [Indexed: 02/08/2023]
Abstract
UNLABELLED Emerging research has demonstrated that pancreatic ductal adenocarcinoma (PDAC) contains a sub-population of cancer stem cells (CSCs) characterized by self-renewal, anchorage-independent-growth, long-term proliferation and chemoresistance. The secretome analysis of pancreatic CSCs has not yet been performed, although it may provide insight into tumour/microenvironment interactions and intracellular processes, as well as to identify potential biomarkers. To characterize the secreted proteins of pancreatic CSCs, we performed an iTRAQ-based proteomic analysis to compare the secretomes of Panc1 cancer stem-like cells (Panc1 CSCs) and parental cell line. A total of 72 proteins were found up-/down-regulated in the conditioned medium of Panc1 CSCs. The pathway analysis revealed modulation of vital physiological pathways including glycolysis, gluconeogenesis and pentose phosphate. Through ELISA immunoassays we analysed the presence of the three proteins most highly secreted by Panc1 CSCs (ceruloplasmin, galectin-3, and MARCKS) in sera of PDAC patient. ROC curve analysis suggests ceruloplasmin as promising marker for patients negative for CA19-9. Overall, our study provides a systemic secretome analysis of pancreatic CSCs revealing a number of secreted proteins which participate in pathological conditions including cancer differentiation, invasion and metastasis. They may serve as a valuable pool of proteins from which biomarkers and therapeutic targets can be identified. BIOLOGICAL SIGNIFICANCE The secretome of CSCs is a rich reservoir of biomarkers of cancer progression and molecular therapeutic targets, and thus is a topic of great interest for cancer research. The secretome analysis of pancreatic CSCs has not yet been performed. Recently, our group has demonstrated that Panc-1 CSCs isolated from parental cell line by using the CSC selective medium, represent a model of great importance to deepen the understanding of the biology of pancreatic adenocarcinoma. To our knowledge, this is the first proteomic study of pancreatic CSC secretome. We performed an iTRAQ-based analysis to compare the secretomes of Panc1 CSCs and Panc1 parental cell line and identified a total of 43 proteins secreted at higher level by pancreatic cancer stem cells. We found modulation of different vital physiological pathways (such as glycolysis and gluconeogenesis, pentose phosphate pathway) and the involvement of CSC secreted proteins (for example 72kDa type IV collagenase, galectin-3, alpha-actinin-4, and MARCKS) in pathological conditions including cancer differentiation, invasion and metastasis. By ELISA verification we found that MARCKS and ceruloplasmin discriminate between controls and PDAC patients; in addition ROC curve analyses indicate that MARCKS does not have diagnostic accuracy, while ceruloplasmin could be a promising marker only for patients negative for CA19-9. We think that the findings reported in our manuscript advance the understanding of the pathways implicated in tumourigenesis, metastasis and chemoresistance of pancreatic cancer, and also identify a pool of proteins from which novel candidate diagnostic and therapeutic biomarkers could be discovered.
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Affiliation(s)
- Jessica Brandi
- University of Verona, Department of Biotechnology, Proteomics and Mass Spectrometry Laboratory, Verona 37134, Italy
| | - Elisa Dalla Pozza
- University of Verona, Department of Life and Reproduction Sciences, Verona 37134, Italy
| | - Ilaria Dando
- University of Verona, Department of Life and Reproduction Sciences, Verona 37134, Italy
| | - Giulia Biondani
- University of Verona, Department of Life and Reproduction Sciences, Verona 37134, Italy
| | - Elisa Robotti
- University of Piemonte Orientale, Department of Sciences and Technological Innovation, Alessandria 15121, Italy
| | - Rosalind Jenkins
- University of Liverpool, MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, Liverpool L69 3GE, United Kingdom
| | - Victoria Elliott
- NIHR Liverpool Pancreas Biomedical Research Unit, Department of Molecular and Therapeutic Cancer Medicine, Liverpool L69 3GA, United Kingdom
| | - Kevin Park
- University of Liverpool, MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, Liverpool L69 3GE, United Kingdom
| | - Emilio Marengo
- University of Piemonte Orientale, Department of Sciences and Technological Innovation, Alessandria 15121, Italy
| | - Eithne Costello
- NIHR Liverpool Pancreas Biomedical Research Unit, Department of Molecular and Therapeutic Cancer Medicine, Liverpool L69 3GA, United Kingdom
| | - Aldo Scarpa
- University and Hospital Trust of Verona, Applied Research on Cancer Network (ARC-NET) and Department of Pathology and Diagnostics, Verona 37134, Italy
| | - Marta Palmieri
- University of Verona, Department of Life and Reproduction Sciences, Verona 37134, Italy.
| | - Daniela Cecconi
- University of Verona, Department of Biotechnology, Proteomics and Mass Spectrometry Laboratory, Verona 37134, Italy
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Brumback RA. Neurobiology of disease in children: a decade of successful symposia and a robust partnership with the Journal of Child Neurology. J Child Neurol 2011; 26:1475-9. [PMID: 22114242 DOI: 10.1177/0883073811426934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Méndez O, Zavadil J, Esencay M, Lukyanov Y, Santovasi D, Wang SC, Newcomb EW, Zagzag D. Knock down of HIF-1alpha in glioma cells reduces migration in vitro and invasion in vivo and impairs their ability to form tumor spheres. Mol Cancer 2010; 9:133. [PMID: 20515450 PMCID: PMC2896954 DOI: 10.1186/1476-4598-9-133] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Accepted: 06/01/2010] [Indexed: 11/15/2022] Open
Abstract
Background Glioblastoma (GBM) is the most common and malignant primary intracranial human neoplasm. GBMs are characterized by the presence of extensive areas of necrosis and hypoxia. Hypoxia and its master regulator, hypoxia inducible factor 1 (HIF-1) play a key role in glioma invasion. Results To further elucidate the functional role of HIF-1α in glioma cell migration in vitro and in invasion in vivo, we used a shRNA approach to knock down HIF-1α expression complemented with genome-wide expression profiling, performed in both normoxic and hypoxic conditions. Our data show that knock down of HIF-1α in glioma cells significantly impairs their migration in vitro as well as their ability to invade into the brain parenchyma in vivo. Next, we assessed the role that HIF-1α plays in maintaining the characteristics of cancer stem cells (CSCs). By using the tumor sphere forming assay, we demonstrate that HIF-1α plays a role in the survival and self-renewal potential of CSCs. Finally, expression profiling experiments in glioma cells provided detailed insight into a broad range of specific biological pathways and processes downstream of HIF-1α. We discuss the role of these processes in the migratory and invasive properties, as well as the stem cell biology of glioblastomas Conclusions Our data show that knock down of HIF-1α in human and murine glioma cells impairs their migration in vitro and their invasion in vivo. In addition, our data suggest that HIF-1α plays a role in the survival and self-renewal potential of CSCs and identify genes that might further elucidate the role of HIF-1α in tumor migration, invasion and stem cell biology.
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Affiliation(s)
- Olga Méndez
- Microvascular and Molecular Neuro-oncology laboratory, New York University School of Medicine, New York University Langone Medical Center, New York, NY, USA
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10
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Brumback RA. Child neurologists should be interested in brain tumors! J Child Neurol 2009; 24:1338-40. [PMID: 19841422 DOI: 10.1177/0883073809343317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Roger A. Brumback
- Journal of Child Neurology, Creighton University School of Medicine, Omaha, Nebraska
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