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Wang JZ, Landry AP, Raleigh DR, Sahm F, Walsh KM, Goldbrunner R, Yefet LS, Tonn JC, Gui C, Ostrom QT, Barnholtz-Sloan J, Perry A, Ellenbogen Y, Hanemann CO, Jungwirth G, Jenkinson MD, Tabatabai G, Mathiesen TI, McDermott MW, Tatagiba M, la Fougère C, Maas SLN, Galldiks N, Albert NL, Brastianos PK, Ehret F, Minniti G, Lamszus K, Ricklefs FL, Schittenhelm J, Drummond KJ, Dunn IF, Pathmanaban ON, Cohen-Gadol AA, Sulman EP, Tabouret E, Le Rhun E, Mawrin C, Moliterno J, Weller M, Bi W(L, Gao A, Yip S, Niyazi M, Aldape K, Wen PY, Short S, Preusser M, Nassiri F, Zadeh G. Meningioma: International Consortium on Meningiomas consensus review on scientific advances and treatment paradigms for clinicians, researchers, and patients. Neuro Oncol 2024; 26:1742-1780. [PMID: 38695575 PMCID: PMC11449035 DOI: 10.1093/neuonc/noae082] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024] Open
Abstract
Meningiomas are the most common primary intracranial tumors in adults and are increasing in incidence due to the aging population and increased access to neuroimaging. While most exhibit nonmalignant behavior, a subset of meningiomas are biologically aggressive and are associated with treatment resistance, resulting in significant neurologic morbidity and even mortality. In recent years, meaningful advances in our understanding of the biology of these tumors have led to the incorporation of molecular biomarkers into their grading and prognostication. However, unlike other central nervous system (CNS) tumors, a unified molecular taxonomy for meningiomas has not yet been established and remains an overarching goal of the Consortium to Inform Molecular and Practical Approaches to CNS Tumor Taxonomy-Not Official World Health Organization (cIMPACT-NOW) working group. Additionally, clinical equipoise still remains on how specific meningioma cases and patient populations should be optimally managed. To address these existing gaps, members of the International Consortium on Meningiomas including field-leading experts, have prepared this comprehensive consensus narrative review directed toward clinicians, researchers, and patients. Included in this manuscript are detailed overviews of proposed molecular classifications, novel biomarkers, contemporary treatment strategies, trials on systemic therapies, health-related quality-of-life studies, and management strategies for unique meningioma patient populations. In each section, we discuss the current state of knowledge as well as ongoing clinical and research challenges to road map future directions for further investigation.
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Affiliation(s)
- Justin Z Wang
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - Alexander P Landry
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - David R Raleigh
- Department of Radiation Oncology, Neurological Surgery, and Pathology, University of California San Francisco, San Francisco, California, USA
| | - Felix Sahm
- Department of Neuropathology, University Hospital Heidelberg and German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kyle M Walsh
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
| | - Roland Goldbrunner
- Center of Neurosurgery, Department of General Neurosurgery, University of Cologne, Cologne, Germany
| | - Leeor S Yefet
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jörg C Tonn
- Department of Neurosurgery, University Hospital Munich LMU, Munich, Germany
| | - Chloe Gui
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - Quinn T Ostrom
- Duke Cancer Institute, Duke University School of Medicine, Durham, North Carolina, USA
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
- Department of Neurosurgery, Duke University, Durham, North Carolina, USA
| | - Jill Barnholtz-Sloan
- Center for Biomedical Informatics & Information Technology (CBIIT), National Cancer Institute, Bethesda, Maryland, USA
- Trans Divisional Research Program (TDRP), Division of Cancer Epidemiology and Genetics (DCEG), National Cancer Institute, Bethesda, Maryland, USA
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
| | - Arie Perry
- Department of Pathology, University of California San Francisco, San Francisco, California, USA
| | - Yosef Ellenbogen
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - C Oliver Hanemann
- Peninsula Schools of Medicine, University of Plymouth University, Plymouth, UK
| | - Gerhard Jungwirth
- Division of Experimental Neurosurgery, Department of Neurosurgery, Heidelberg University, Heidelberg, Germany
| | - Michael D Jenkinson
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, UK
| | - Ghazaleh Tabatabai
- Department of Neurology and Interdisciplinary Neuro-Oncology, University Hospital Tübingen, Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Tübingen, Germany
- Cluster of Excellence (EXC 2180) “Image Guided and Functionally Instructed Tumor Therapies,” Eberhard Karls University Tübingen, Tübingen, Germany
- Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen-Stuttgart, University Hospital Tübingen, Tübingen, Germany
| | - Tiit I Mathiesen
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Michael W McDermott
- Division of Neuroscience, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
- Miami Neuroscience Institute, Baptist Health of South Florida, Miami, Florida, USA
| | - Marcos Tatagiba
- Department of Neurosurgery, University of Tübingen, Tübingen, Germany
- Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen-Stuttgart, University Hospital Tübingen, Tübingen, Germany
| | - Christian la Fougère
- Nuclear Medicine and Clinical Molecular Imaging, University Hospital Tübingen, Germany
- Cluster of Excellence (EXC 2180) “Image Guided and Functionally Instructed Tumor Therapies,” Eberhard Karls University Tübingen, Tübingen, Germany
| | - Sybren L N Maas
- Department of Pathology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Norbert Galldiks
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Institute of Neuroscience and Medicine (IMN-3), Research Center Juelich, Juelich, Germany
| | - Nathalie L Albert
- Department of Nuclear Medicine, Ludwig Maximilians-University of Munich, Munich, Germany
| | - Priscilla K Brastianos
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Felix Ehret
- Department of Radiation Oncology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Giuseppe Minniti
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Rome, Italy
| | - Katrin Lamszus
- Laboratory for Brain Tumor Biology, University Hospital Eppendorf, Hamburg, Germany
| | - Franz L Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Schittenhelm
- Department of Neuropathology, University Hospital Tübingen, Eberhard-Karls-University Tübingen, Tübingen, Germany
- Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen-Stuttgart, University Hospital Tübingen, Tübingen, Germany
| | - Katharine J Drummond
- Department of Neurosurgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Ian F Dunn
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Omar N Pathmanaban
- Division of Neuroscience and Experimental Psychology, Manchester Centre for Clinical Neurosciences, Geoffrey Jefferson Brain Research Centre, University of Manchester, Manchester, UK
| | - Aaron A Cohen-Gadol
- Department of Neurological Surgery, Indiana University, Indianapolis, Indiana, USA
| | - Erik P Sulman
- Department of Radiation Oncology, NYU Grossman School of Medicine, New York, New York, USA
| | - Emeline Tabouret
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille University, Marseille, France
| | - Emelie Le Rhun
- Department of Neurology & Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Christian Mawrin
- Department of Neuropathology, University Hospital Magdeburg, Magdeburg, Germany
| | - Jennifer Moliterno
- Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut, USA
| | - Michael Weller
- Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Wenya (Linda) Bi
- Department of Neurosurgery, Brigham and Women’s Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Andrew Gao
- Department of Laboratory Medicine and Pathobiology, University Health Network, Toronto, Ontario, Canada
| | - Stephen Yip
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Radiation Oncology, University Hospital, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
| | - Maximilian Niyazi
- Bavarian Cancer Research Center (BZKF), Munich, Germany
- Center for Neuro-Oncology, Comprehensive Cancer Center Tübingen-Stuttgart, University Hospital Tübingen, Tübingen, Germany
| | | | - Kenneth Aldape
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Patrick Y Wen
- Dana-Farber Cancer Institute, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Susan Short
- Leeds Institute of Medical Research, St James’s University Hospital, Leeds, UK
| | - Matthias Preusser
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Farshad Nassiri
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - Gelareh Zadeh
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- MacFeeters Hamilton Neuro-Oncology Program, Princess Margaret Cancer Centre, University Health Network and University of Toronto, Toronto, Ontario, Canada
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Kafka A, Bukovac A, Brglez E, Jarmek AM, Poljak K, Brlek P, Žarković K, Njirić N, Pećina-Šlaus N. Methylation Patterns of DKK1, DKK3 and GSK3β Are Accompanied with Different Expression Levels in Human Astrocytoma. Cancers (Basel) 2021; 13:cancers13112530. [PMID: 34064046 PMCID: PMC8196684 DOI: 10.3390/cancers13112530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 01/24/2023] Open
Abstract
In the present study, we investigated genetic and epigenetic changes and protein expression levels of negative regulators of Wnt signaling, DKK1, DKK3, and APC as well as glycogen synthase kinase 3 (GSK3β) and β-catenin in 64 human astrocytomas of grades II-IV. Methylation-specific PCR revealed promoter methylation of DKK1, DKK3, and GSK3β in 38%, 43%, and 18% of samples, respectively. Grade IV comprised the lowest number of methylated GSK3β cases and highest of DKK3. Evaluation of the immunostaining using H-score was performed for β-catenin, both total and unphosphorylated (active) forms. Additionally, active (pY216) and inactive (pS9) forms of GSK3β protein were also analyzed. Spearman's correlation confirmed the prevalence of β-catenin's active form (rs = 0.634, p < 0.001) in astrocytoma tumor cells. The Wilcoxon test revealed that astrocytoma with higher levels of the active pGSK3β-Y216 form had lower expression levels of its inactive form (p < 0.0001, Z = -5.332). Changes in APC's exon 11 were observed in 44.44% of samples by PCR/RFLP. Astrocytomas with changes of APC had higher H-score values of total β-catenin compared to the group without genetic changes (t = -2.264, p = 0.038). Furthermore, a positive correlation between samples with methylated DKK3 promoter and the expression of active pGSK3β-Y216 (rs = 0.356, p = 0.011) was established. Our results emphasize the importance of methylation for the regulation of Wnt signaling. Large deletions of the APC gene associated with increased β-catenin levels, together with oncogenic effects of both β-catenin and GSK3β, are clearly involved in astrocytoma evolution. Our findings contribute to a better understanding of the etiology of gliomas. Further studies should elucidate the clinical and therapeutic relevance of the observed molecular alterations.
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Affiliation(s)
- Anja Kafka
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10 000 Zagreb, Croatia
- Correspondence:
| | - Anja Bukovac
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10 000 Zagreb, Croatia
| | - Emilija Brglez
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
| | - Ana-Marija Jarmek
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
| | - Karolina Poljak
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
| | - Petar Brlek
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
| | - Kamelija Žarković
- Department of Pathology, School of Medicine, University of Zagreb, Šalata 10, 10 000 Zagreb, Croatia;
- Division of Pathology, University Hospital Center “Zagreb”, Kišpatićeva 12, 10 000 Zagreb, Croatia
| | - Niko Njirić
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
- Department of Neurosurgery, University Hospital Center “Zagreb”, School of Medicine, University of Zagreb, Kišpatićeva 12, 10 000 Zagreb, Croatia
| | - Nives Pećina-Šlaus
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10 000 Zagreb, Croatia; (A.B.); (E.B.); (A.-M.J.); (K.P.); (P.B.); (N.N.); (N.P.-Š.)
- Department of Biology, School of Medicine, University of Zagreb, Šalata 3, 10 000 Zagreb, Croatia
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Bukovac A, Kafka A, Raguž M, Brlek P, Dragičević K, Müller D, Pećina-Šlaus N. Are We Benign? What Can Wnt Signaling Pathway and Epithelial to Mesenchymal Transition Tell Us about Intracranial Meningioma Progression. Cancers (Basel) 2021; 13:1633. [PMID: 33915799 PMCID: PMC8037732 DOI: 10.3390/cancers13071633] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/17/2021] [Accepted: 03/26/2021] [Indexed: 01/26/2023] Open
Abstract
Epithelial to mesenchymal transition (EMT), which is characterized by the reduced expression of E-cadherin and increased expression of N-cadherin, plays an important role in the tumor invasion and metastasis. Classical Wnt signaling pathway has a tight link with EMT and it has been shown that nuclear translocation of β-catenin can induce EMT. This research has showed that genes that are involved in cadherin switch, CDH1 and CDH2, play a role in meningioma progression. Increased N-cadherin expression in relation to E-cadherin was recorded. In meningioma, transcription factors SNAIL, SLUG, and TWIST1 demonstrated strong expression in relation to E- and N-cadherin. The expression of SNAIL and SLUG was significantly associated with higher grades (p = 0.001), indicating their role in meningioma progression. Higher grades also recorded an increased expression of total β-catenin followed by an increased expression of its active form (p = 0.000). This research brings the results of genetic and protein analyzes of important molecules that are involved in Wnt and EMT signaling pathways and reveals their role in intracranial meningioma. The results of this study offer guidelines and new markers of progression for future research and reveal new molecular targets of therapeutic interventions.
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Affiliation(s)
- Anja Bukovac
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Anja Kafka
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Marina Raguž
- Department of Neurosurgery, University hospital Dubrava, 10000 Zagreb, Croatia;
| | - Petar Brlek
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
| | - Katarina Dragičević
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
| | - Danko Müller
- Department of Pathology and Cytology, University Hospital Dubrava, 10000 Zagreb, Croatia;
| | - Nives Pećina-Šlaus
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
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Gao X, Zhang L, Jia Q, Tang L, Guo W, Wang T, Wu Z, Zhou W, Li Z, Xiao J. Whole Genome Sequencing Identifies Key Genes in Spinal Schwannoma. Front Genet 2020; 11:507816. [PMID: 33193598 PMCID: PMC7661748 DOI: 10.3389/fgene.2020.507816] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 09/10/2020] [Indexed: 12/16/2022] Open
Abstract
Spinal schwannoma is the most common primary spinal tumor but its genomic landscape and underlying mechanism driving its initiation remain elusive. The aim of the present study was to gain further insights into the molecular mechanisms of this kind of tumor through whole genome sequencing of nine spinal schwannomas and paired blood samples. The results showed that ATM, CHD4, FAT1, KMT2D, MED12, NF2, and SUFU were the most frequently mutated cancer-related genes. In addition, the somatic copy number alterations (CNA) was potentially associated with spinal schwannoma, among which NF2 was found to be frequently deleted in schwannoma samples. Only a few genes were located within the amplified regions. In contrast, the deleted regions in 15q15.1 and 7q36.1 contained most of these genes. With respect to tumorigenesis, NF2 had the highest variant allele frequency (VAF) than other genes, and homozygous deletion was observed in NF1, NF2, and CDKN2C. Pathway-level analysis suggested that Hippo signaling pathway may be a critical pathway controlling the initiation of spinal schwannoma. Collectively, this systematic analysis of DNA sequencing data revealed that some key genes including NF1, NF2, and CDKN2C and Hippo signaling pathway were associated with spinal schwannoma, which may help improve our understanding about the genomic landscape of spinal schwannoma.
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Affiliation(s)
- Xin Gao
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Li Zhang
- Key Laboratory of Advanced Theory and Application in Statistics and Data Science - MOE, School of Statistics, East China Normal University, Shanghai, China.,Center for Bioinformatics and Computational Biology, School of Life Sciences, Institute of Biomedical Sciences, East China Normal University, Shanghai, China
| | - Qi Jia
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Liang Tang
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wen Guo
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Department of Orthopedics, Taizhou People's Hospital, Taizhou, China
| | - Tao Wang
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zheyu Wu
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wang Zhou
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zhenxi Li
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Jianru Xiao
- Orthopedic Oncology Center, Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Nasser MM, Mehdipour P. Exploration of Involved Key Genes and Signaling Diversity in Brain Tumors. Cell Mol Neurobiol 2018; 38:393-419. [PMID: 28493234 DOI: 10.1007/s10571-017-0498-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 05/02/2017] [Indexed: 02/05/2023]
Abstract
Brain tumors are becoming a major cause of death. The classification of brain tumors has gone through restructuring with regard to some criteria such as the presence or absence of a specific genetic alteration in the 2016 central nervous system World Health Organization update. Two categories of genes with a leading role in tumorigenesis and cancer induction include tumor suppressor genes and oncogenes; tumor suppressor genes are inactivated through a variety of mechanisms that result in their loss of function. As for the oncogenes, overexpression and amplification are the most common mechanisms of alteration. Important cell cycle genes such as p53, ATM, cyclin D2, and Rb have shown altered expression patterns in different brain tumors such as meningioma and astrocytoma. Some genes in signaling pathways have a role in brain tumorigenesis. These pathways include hedgehog, EGFR, Notch, hippo, MAPK, PI3K/Akt, and WNT signaling. It has been shown that telomere length in some brain tumor samples is shortened compared to that in normal cells. As the shortening of telomere length triggers chromosome instability early in brain tumors, it could lead to initiation of cancer. On the other hand, telomerase activity was positive in some brain tumors. It is suggestive that telomere length and telomerase activity are important diagnostic markers in brain tumors. This review focuses on brain tumors with regard to the status of oncogenes, tumor suppressors, cell cycle genes, and genes in signaling pathways as well as the role of telomere length and telomerase in brain tumors.
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Affiliation(s)
- Mojdeh Mahdian Nasser
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Parvin Mehdipour
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Expression Levels and Localizations of DVL3 and sFRP3 in Glioblastoma. DISEASE MARKERS 2017; 2017:9253495. [PMID: 29200599 PMCID: PMC5671711 DOI: 10.1155/2017/9253495] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 09/14/2017] [Indexed: 12/28/2022]
Abstract
The expression patterns of critical molecular components of Wnt signaling, sFRP3 and DVL3, were investigated in glioblastoma, the most aggressive form of primary brain tumors, with the aim to offer potential biomarkers. The protein expression levels and localizations in tumor tissue were revealed by immunohistochemistry and evaluated by the semiquantitative method and immunoreactivity score. Majority of glioblastomas had moderate expression levels for both DVL3 (52.4%) and sFRP3 (52.3%). Strong expression levels were observed in 23.1% and 36.0% of samples, respectively. DVL3 was localized in cytoplasm in 97% of glioblastomas, of which 44% coexpressed the protein in the nucleus. sFRP3 subcellular distribution showed that it was localized in the cytoplasm in 94% of cases. Colocalization in the cytoplasm and nucleus was observed in 50% of samples. Wilcox test indicated that the domination of the strong signal is in connection with simultaneous localization of DVL3 protein in the cytoplasm and the nucleus. Patients with strong expression of DVL3 will significantly more often have the protein in the nucleus (P = 6.33 × 10−5). No significant correlation between the two proteins was established, nor were their signal strengths correlated with epidemiological parameters. Our study contributes to better understanding of glioblastoma molecular profile.
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Pećina-Šlaus N, Kafka A, Varošanec AM, Marković L, Krsnik Ž, Njirić N, Mrak G. Expression patterns of Wnt signaling component, secreted frizzled‑related protein 3 in astrocytoma and glioblastoma. Mol Med Rep 2016; 13:4245-51. [PMID: 27035837 PMCID: PMC4838070 DOI: 10.3892/mmr.2016.5061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/16/2016] [Indexed: 02/06/2023] Open
Abstract
Secreted frizzled-related protein 3 (SFRP3) is a member of the family of soluble proteins, which modulate the Wnt signaling cascade. Novel research has identified aberrant expression of SFRPs in different types of cancer. In the present study the expression intensities and localizations of the SFRP3 protein across different histopathological grades of astrocytic brain tumors were investigated by immunohistochemistry, digital scanning and image analysis. The results demonstrated that the differences between expression levels and malignancy grades were statistically significant. Tumors were classified into four malignancy grades according to the World Health Organization guidelines. Moderate (P=0.014) and strong (P=0.028) nuclear expression levels were significantly different in pilocytic (grade I) and diffuse (grade II) astrocytomas demonstrating higher expression values, as compared with anaplastic astrocytoma (grade III) and glioblastoma (grade IV). When the sample was divided into two groups, the moderate and high cytoplasmic expression levels were observed to be significantly higher in glioblastomas than in the group comprising astrocytoma II and III. Furthermore, the results indicated that high grade tumors were associated with lower values of moderate (P=0.002) and strong (P=0.018) nuclear expression in comparison to low grade tumors. Analysis of cytoplasmic staining demonstrated that strong cytoplasmic expression was significantly higher in the astrocytoma III and IV group than in the astrocytoma I and II group (P=0.048). Furthermore, lower grade astrocytomas exhibited reduced membranous SFRP3 staining when compared with higher grade astrocytomas and this difference was statistically significant (P=0.036). The present results demonstrated that SFRP3 protein expression levels were decreased in the nucleus in higher grade astrocytoma (indicating the expected behavior of an antagonist of Wnt signaling), whereas when the SFRP3 was located in the cytoplasm an increased expression level of SFRP3 was identified in the high grade astrocytomas when compared with those of a low grade. This may suggest that SFRP3 acts as an agonist of Wnt signaling and promotes invasive behavior.
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Affiliation(s)
- Nives Pećina-Šlaus
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Anja Kafka
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Ana Maria Varošanec
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Leon Marković
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Željka Krsnik
- Department of Neuroscience, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Niko Njirić
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
| | - Goran Mrak
- Department of Neurosurgery, University Hospital Center Zagreb, School of Medicine, University of Zagreb, Zagreb HR‑10000, Croatia
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Kealy J, Campbell M. The Blood-Brain Barrier in Glioblastoma: Pathology and Therapeutic Implications. RESISTANCE TO TARGETED ANTI-CANCER THERAPEUTICS 2016. [DOI: 10.1007/978-3-319-46505-0_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Evaluation of the good tumor response of embryonal tumor with abundant neuropil and true rosettes (ETANTR). J Neurooncol 2015; 126:99-105. [DOI: 10.1007/s11060-015-1938-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 09/11/2015] [Indexed: 11/27/2022]
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10
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Lorenc Z, Opiłka MN, Kruszniewska-Rajs C, Rajs A, Waniczek D, Starzewska M, Lorenc J, Mazurek U. Expression Level of Genes Coding for Cell Adhesion Molecules of Cadherin Group in Colorectal Cancer Patients. Med Sci Monit 2015; 21:2031-40. [PMID: 26167814 PMCID: PMC4514365 DOI: 10.12659/msm.893610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Colorectal Cancer (CRC) is one of the most frequently diagnosed neoplasms and also one of the main death causes. Cell adhesion molecules are taking part in specific junctions, contributing to tissue integrality. Lower expression of the cadherins may be correlated with poorer differentiation of the CRC, and its more aggressive phenotype. The aim of the study is to designate the cadherin genes potentially useful for the diagnostics, prognostics, and the treatment of CRC. Material/Method Specimens were collected from 28 persons (14 female and 14 male), who were operated for CRC. The molecular analysis was performed using oligonucleotide microarrays, mRNA used was collected from adenocarcinoma, and macroscopically healthy tissue. The results were validated using qRT-PCR technique. Results Agglomerative hierarchical clustering of normalized mRNA levels has shown 4 groups with statistically different gene expression. The control group was divided into 2 groups, the one was appropriate control (C1), the second (C2) had the genetic properties of the CRC, without pathological changes histologically and macroscopically. The other 2 groups were: LSC (Low stage cancer) and HSC (High stage cancer). Consolidated results of the fluorescency of all of the differential genes, designated two coding E-cadherin (CDH1) with the lower expression, and P-cadherin (CDH3) with higher expression in CRC tissue. Conclusions The levels of genes expression are different for several groups of cadherins, and are related with the stage of CRC, therefore could be potentially the useful marker of the stage of the disease, also applicable in treatment and diagnostics of CRC.
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Affiliation(s)
- Zbigniew Lorenc
- Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Katowice, Poland
| | - Mieszko Norbert Opiłka
- Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Katowice, Poland
| | | | - Antoni Rajs
- Department of Molecular Biology, Medical University of Silesia, Katowice, Poland
| | - Dariusz Waniczek
- Department of Propedeutics Surgery, Chair of General, Colorectal and Polytrauma Surgery, Medical University of Silesia, Katowice, Poland
| | - Małgorzata Starzewska
- Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Katowice, Poland
| | - Justyna Lorenc
- Chair and Clinical Department of General, Colorectal and Trauma Surgery, Medical University of Silesia, Katowice, Poland
| | - Urszula Mazurek
- Department of Molecular Biology, Medical University of Silesia, Katowice, Poland
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11
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Mandara MT, Reginato A, Foiani G, Baroni M, Poli F, Gasparinetti N, Bernardini M. Papillary meningioma in the dog: A clinicopathological case series study. Res Vet Sci 2015; 100:213-9. [DOI: 10.1016/j.rvsc.2015.03.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/13/2015] [Accepted: 03/22/2015] [Indexed: 01/19/2023]
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12
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A graphic method for identification of novel glioma related genes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:891945. [PMID: 25050377 PMCID: PMC4094879 DOI: 10.1155/2014/891945] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 05/25/2014] [Accepted: 05/28/2014] [Indexed: 01/14/2023]
Abstract
Glioma, as the most common and lethal intracranial tumor, is a serious disease that causes many deaths every year. Good comprehension of the mechanism underlying this disease is very helpful to design effective treatments. However, up to now, the knowledge of this disease is still limited. It is an important step to understand the mechanism underlying this disease by uncovering its related genes. In this study, a graphic method was proposed to identify novel glioma related genes based on known glioma related genes. A weighted graph was constructed according to the protein-protein interaction information retrieved from STRING and the well-known shortest path algorithm was employed to discover novel genes. The following analysis suggests that some of them are related to the biological process of glioma, proving that our method was effective in identifying novel glioma related genes. We hope that the proposed method would be applied to study other diseases and provide useful information to medical workers, thereby designing effective treatments of different diseases.
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Kafka A, Tomas D, Beroš V, Pećina HI, Zeljko M, Pećina-Šlaus N. Brain metastases from lung cancer show increased expression of DVL1, DVL3 and beta-catenin and down-regulation of E-cadherin. Int J Mol Sci 2014; 15:10635-51. [PMID: 24933634 PMCID: PMC4100173 DOI: 10.3390/ijms150610635] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/14/2014] [Accepted: 05/27/2014] [Indexed: 12/21/2022] Open
Abstract
The susceptibility of brain to secondary formation from lung cancer primaries is a well-known phenomenon. In contrast, the molecular basis for invasion and metastasis to the brain is largely unknown. In the present study, 31 brain metastases that originated from primary lung carcinomas were analyzed regarding over expression of Dishevelled-1 (DVL1), Dishevelled-3 (DVL3), E-cadherin (CDH1) and beta-catenin (CTNNB1). Protein expressions and localizations were analyzed by immunohistochemistry. Genetic alterations of E-cadherin were tested by polymerase chain reaction (PCR)/loss of heterozygosity (LOH). Heteroduplex was used to investigate mutations in beta-catenin. DVL1 and DVL3 showed over expression in brain metastasis in 87.1% and 90.3% of samples respectively. Nuclear staining was observed in 54.8% of cases for DVL1 and 53.3% for DVL3. The main effector of the Wnt signaling, beta-catenin, was up-regulated in 56%, and transferred to the nucleus in 36% of metastases. When DVL1 and DVL3 were up-regulated the number of cases with nuclear beta-catenin significantly increased (p=0.0001). Down-regulation of E-cadherin was observed in 80% of samples. Genetic analysis showed 36% of samples with LOH of the CDH1. In comparison to other lung cancer pathologies, the diagnoses adenocarcinoma and small cell lung cancer (SCLC) were significantly associated to CDH1 LOH (p=0.001). Microsatellite instability was detected in one metastasis from adenocarcinoma. Exon 3 of beta-catenin was not targeted. Altered expression of Dishevelled-1, Dishevelled-3, E-cadherin and beta-catenin were present in brain metastases which indicates that Wnt signaling is important and may contribute to better understanding of genetic profile conditioning lung cancer metastasis to the brain.
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Affiliation(s)
- Anja Kafka
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
| | - Davor Tomas
- Ljudevit Jurak Department of Pathology, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Vili Beroš
- Department of Neurosurgery, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Hrvoje Ivan Pećina
- Department of Radiology, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Martina Zeljko
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
| | - Nives Pećina-Šlaus
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
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Pećina-Šlaus N, Nikuševa Martić T, Zeljko M, Bulat S. Brain metastases exhibit gross deletions of the APC gene. Brain Tumor Pathol 2011; 28:223-8. [PMID: 21442240 DOI: 10.1007/s10014-011-0030-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Accepted: 03/03/2011] [Indexed: 11/28/2022]
Abstract
Candidate genes involved in metastasis to the brain require investigation. In the present study, the adenomatous polyposis coli (APC) gene was analyzed in a set of human brain metastases. Gross deletions of the APC gene were tested by polymerase chain reaction/loss of heterozygosity (LOH) using the restriction fragment length polymorphism method performed by the use of MspI and RsaI genetic markers inside exon 15 and exon 11. Among 21 brain metastases analyzed, 58.8% of samples showed LOH of the APC gene. When assigning the genetic changes to a specific primary tumor type, 6 LOHs were found in metastases originated from lung and 4 LOHs in metastases from colon. The main effector of the wnt signaling, beta-catenin, was upregulated in 42.9% of cases and transferred to the nucleus in 28.6% of metastasis cases. Our findings suggest that genetic changes of the tumor suppressor gene APC, a component of the wnt pathway, represent a part of the brain metastasis genetic profile.
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Affiliation(s)
- Nives Pećina-Šlaus
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Šalata 12, 10000 Zagreb, Croatia.
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15
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Meunier D, Patra K, Smits R, Hägebarth A, Lüttges A, Jaussi R, Wieduwilt MJ, Quintanilla-Fend L, Himmelbauer H, Fodde R, Fundele RH. Expression analysis of proline rich 15 (Prr15) in mouse and human gastrointestinal tumors. Mol Carcinog 2011; 50:8-15. [PMID: 21061267 DOI: 10.1002/mc.20692] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Proline rich 15 (Prr15), which encodes a protein of unknown function, is expressed almost exclusively in postmitotic cells both during fetal development and in adult tissues, such as the intestinal epithelium and the testis. To determine if this specific expression is lost in intestinal neoplasias, we examined Prr15 expression by in situ hybridization (ISH) on mouse intestinal tumors caused by different gene mutations, and on human colorectal cancer (CRC) samples. Prr15/PRR15 expression was consistently observed in mouse gastrointestinal (GI) tumors caused by mutations in the Apc gene, as well as in several advanced stage human CRCs. In contrast, no Prr15 expression was detected in intestinal tumors derived from mice carrying mutations in the Smad3, Smad4, or Cdkn1b genes. These findings, combined with the fact that a majority of sporadic human CRCs carry APC mutations, strongly suggest that the expression of Prr15/PRR15 in mouse and human GI tumors is linked, directly or indirectly, to the absence of the APC protein or, more generally, to the disruption of the Wnt signaling pathway.
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Affiliation(s)
- Dominique Meunier
- Department of Human Molecular Genetics, Max Planck Institute for Molecular Genetics (MPIMG), Berlin, Germany
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16
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Retrospective protein expression and epigenetic inactivation studies of CDH1 in patients affected by low-grade glioma. J Neurooncol 2010; 104:113-8. [PMID: 21127944 DOI: 10.1007/s11060-010-0481-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Accepted: 11/22/2010] [Indexed: 12/31/2022]
Abstract
Aberrant methylation of CpG islands in the promoter regions of tumour cells results in loss of gene function. In addition to genetic lesions, changes in the methylation profile of the promoters may be considered a factor for tumour-specific aberrant expression of the genes.We investigated the methylation status of E-cadherin gene (CDH1) promoter in low-grade glioma and correlated it with clinical outcome. Eighty-four cases of low-grade glioma (43 diffuse astrocytomas, 27 oligodendrogliomas and 14 oligoastrocytomas) with assessable paraffin-embedded tumour blocks and normal brain tissue, derived from non-cancerous tissue adjacent to tumour and commercially normal brain tissue, were collected, from which we determined CDH1 promoter methylation status and E-cadherin protein expression by methylation-specific polymerase chain reaction (MSP) and immunohistochemistry, respectively. CDH1 promoter was found hypermethylated in 54 out of 84 low grade gliomas (64%) compared with 84 normal brain tissue. CDH1 hypermethylation was found in 65% astrocytomas, 66% oligodendrogliomas and 57% oligoastrocytomas. A significant correlation between hypermethylation status, patient survival and progression-free survival was found (P = 0.04). Survival and progression-free survival were lower in patients with hypermethylated CDH1 promoter. We found that 15 astrocytomas, 9 oligodendrogliomas and 6 oligoastrocytomas were immunoreactive for E-cadherin. The incidence of loss of immunoreactivity for E-cadherin decreased significantly with age, overall survival and progression-free survival (P = 0.001, Kaplan-Meier test). We have demonstrated that CDH1 promoter hypermethylation significantly associated with down-regulated E-cadherin expression and overall survival of patients. This may have a bearing on the prognosis of low-grade glioma.
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Abstract
Abstract
Since the end of the ‘no-new-neuron’ theory, emerging evidence from multiple studies has supported the existence of stem cells in neurogenic areas of the adult brain. Along with this discovery, neural stem cells became candidate cells being at the origin of brain tumors. In fact, it has been demonstrated that molecular mechanisms controlling self-renewal and differentiation are shared between brain tumor stem cells and neural stem cells and that corruption of genes implicated in these pathways can direct tumor growth. In this regard, future anticancer approaches could be inspired by uncovering such redundancies and setting up treatments leading to exhaustion of the cancer stem cell pool. However, deleterious effects on (normal) neural stem cells should be minimized. Such therapeutic models underline the importance to study the cellular mechanisms implicated in fate decisions of neural stem cells and the oncogenic derivation of adult brain cells. In this review, we discuss the putative origins of brain tumor stem cells and their possible implications on future therapies.
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18
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Götze S, Wolter M, Reifenberger G, Müller O, Sievers S. Frequent promoter hypermethylation of Wnt pathway inhibitor genes in malignant astrocytic gliomas. Int J Cancer 2010; 126:2584-93. [PMID: 19847810 DOI: 10.1002/ijc.24981] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aberrant activation of wingless (Wnt) signaling is involved in the pathogenesis of various cancers. Recent studies suggested a role of Wnt signaling in gliomas, the most common primary brain tumors. We investigated 70 gliomas of different malignancy grades for promoter hypermethylation in 8 genes encoding members of the secreted frizzled-related protein (SFRP1, SFRP2, SFRP4, SFRP5), dickkopf (DKK1, DKK3) and naked (NKD1, NKD2) families of Wnt pathway inhibitors. All tumors were additionally analyzed for mutations in exon 3 of the beta-catenin gene (CTNNB1). While none of the tumors carried CTNNB1 mutations, we found frequent promoter hypermethylation of Wnt pathway inhibitor genes, with at least one of these genes being hypermethylated in 6 of 16 diffuse astrocytomas (38%), 4 of 14 anaplastic astrocytomas (29%), 7 of 10 secondary glioblastomas (70%) and 23 of 30 primary glioblastomas (77%). Glioblastomas often demonstrated hypermethylation of 2 or more analyzed genes. Hypermethylation of SFRP1, SFRP2 and NKD2 each occurred in more than 40% of the primary glioblastomas, while DKK1 hypermethylation was found in 50% of secondary glioblastomas. Treatment of SFRP1-, SFRP5-, DKK1-, DKK3-, NKD1- and NKD2-hypermethylated U87-MG glioblastoma cells with 5-aza-2'-deoxycytidine and trichostatin A resulted in increased expression of each gene. Furthermore, SFRP1-hypermethylated gliomas showed significantly lower expression of the respective transcripts when compared with unmethylated tumors. Taken together, our results suggest an important role of epigenetic silencing of Wnt pathway inhibitor genes in astrocytic gliomas, in particular, in glioblastomas, with distinct patterns of hypermethylated genes distinguishing primary from secondary glioblastomas.
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Affiliation(s)
- Silke Götze
- Department of Structural Biology, Max Planck Institute of Molecular Physiology, Dortmund, Germany.
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Pećina-Slaus N, Majić Z, Musani V, Zeljko M, Cupić H. Report on mutation in exon 15 of the APC gene in a case of brain metastasis. J Neurooncol 2009; 97:143-8. [PMID: 19711014 DOI: 10.1007/s11060-009-0001-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Accepted: 08/10/2009] [Indexed: 11/29/2022]
Abstract
The study analyzes exon 15 of the adenomatous polyposis coli gene (APC) in a 49-year-old male patient with brain metastasis. The primary site was lung carcinoma. PCR method and direct DNA sequencing of the metastasis and autologous lymphocyte samples identified the presence of a somatic mutation. The substitution was at position 5883 G-A in the metastasis tissue. The mutation was confirmed by RFLP analysis using Msp I endonuclease, since the mutation strikes the Msp I restriction site. Immunohistochemical analysis revealed the lack of protein expression of this tumor suppressor gene. The main molecular activator of the wnt pathway, beta-catenin, was expressed, and located in the nucleus. The mutation is a silent mutation that might have consequences in the creation of a new splice site. Different single-base substitutions in APC exons need not only be evaluated by the predicted change in amino acid sequence, but rather at the nucleotide level itself. In our opinion, such silent mutations should also be incorporated in mutation detection rate and validation.
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Affiliation(s)
- Nives Pećina-Slaus
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine University of Zagreb, Zagreb, Croatia.
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20
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Nikuseva Martić T, Pećina-Slaus N, Kusec V, Kokotović T, Musinović H, Tomas D, Zeljko M. Changes of AXIN-1 and beta-catenin in neuroepithelial brain tumors. Pathol Oncol Res 2009; 16:75-9. [PMID: 19633924 DOI: 10.1007/s12253-009-9190-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2009] [Accepted: 07/09/2009] [Indexed: 10/20/2022]
Abstract
In the present study changes of components of Wnt signaling pathway--axin (AXIN1) and beta-catenin (CTNNB1) in a sample of 72 neuroepithelial brain tumors were investigated. AXIN-1 gene was tested by PCR/loss of heterozygosity (LOH). Immunostaining and image analysis revealed the quantity and localization of relevant proteins. Polymorphic marker for AXIN-1, showed LOH in 11.1% of tumors. LOH was distributed to 6.3% of glioblastomas, one was found in neuroepithelial dysembrioplastic tumor and one in medulloblastoma. Down regulation of axin expression and up regulation of beta-catenin were detected in the analyzed tumors. Axin was observed in the cytoplasm in 68.8% of samples, in 28.1% in both the cytoplasm and nucleus and 3.1% had no expression. Beta-catenin was observed mainly in the nucleus and cytoplasm (59.4%). Expression in 34.4% of samples was in the cytoplasm and 6.3% showed no expression. Comparison of mean values of relative increase of axin and beta-catenin showed that they are significantly reversely proportional (P = 0.014). Relative quantity of beta-catenin in patients with gross deletion of AXIN1 was significantly higher in comparison to patients without LOH (P = 0.040). Our results demonstrate that changes of key components of the Wnt signaling play a role in neuroepithelial brain tumors.
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Affiliation(s)
- Tamara Nikuseva Martić
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine University of Zagreb, Salata 12, 10000, Zagreb, Croatia
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Zhang B, Wang X, Wang Y. Altered gene expression and miRNA expression associated with cancerous IEC-6 cell transformed by MNNG. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2009; 28:56. [PMID: 19397828 PMCID: PMC2678987 DOI: 10.1186/1756-9966-28-56] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2009] [Accepted: 04/28/2009] [Indexed: 11/13/2022]
Abstract
Background Tumorigenesis is thought to be the consequence of gene mutation and disordered gene expression. However, the detailed molecular mechanism underlying the development and progress of colon cancer have not been elucidate completely. This study aimed to find out the genes associated with cancer biological pathways involved in transformation and tumorigenesis. Methods Normal intestinal cell line 6 (IEC-6) cells were transformed to cancer cells by treatment with cancerogenic agent of N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) and Phorbol 12-myristate 13 acetate (PMA). Then we investigated the altered gene expression of transformed IEC-6 cells by the microarray containing 113 genes associated with cancer pathway. Also the altered miRNAs of transformed IEC-6 cells were analyzed by array hybridization (miRCURY Array v9.2, Exiqon). The levels of acetylated histone H3 in transformed IEC-6 cells was evaluated by western blot. Results Cell proliferation was significantly increased as IEC-6 cells were transformed and tumor xenografts could be detected in animals as transformed IEC-6 cells were inoculated subcutaneously in nude mice. Result of microarray showed nine genes were increased and two decreased, as well as 13 miRNA were increased and 97 decreased. Verification by real-time PCR implies that the data obtained from microarray analysis were reliable. Western blot showed the levels of acetylated histone H3 were increased dramatically after MNNG/PMA treatment. Conclusion Our results showed many important biological pathways and miRNAs were involved in transformation and tumorigenesis of IEC-6 cells, which suggested the transformation of normal cells was involved with large mount of genetic and epigenetic variation.
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Affiliation(s)
- Bo Zhang
- Department of Medical Genetics, Third Military Medical University, Chongqing, PR China.
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Progress on potential strategies to target brain tumor stem cells. Cell Mol Neurobiol 2008; 29:141-55. [PMID: 18781384 DOI: 10.1007/s10571-008-9310-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 08/25/2008] [Indexed: 01/11/2023]
Abstract
The identification of brain tumor stem cells (BTSCs) leads to promising progress on brain tumor treatment. For some brain tumors, BTSCs are the driving force of tumor growth and the culprits that make tumor revive and resistant to radiotherapy and chemotherapy. Therefore, it is specifically significant to eliminate BTSCs for treatment of brain tumors. There are considerable similarities between BTSCs and normal neural stem cells (NSCs), and diverse aspects of BTSCs have been studied to find potential targets that can be manipulated to specifically eradicate BTSCs without damaging normal NSCs, including their surface makers, surrounding niche, and aberrant signaling pathways. Many strategies have been designed to kill BTSCs, and some of them have reached, or are approaching, effective therapeutic results. Here, we will focus on advantages in the issue of BTSCs and emphasize on potential therapeutic strategies targeting BTSCs.
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