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Alicea GM, Patel P, Portuallo ME, Fane ME, Wei M, Chhabra Y, Dixit A, Carey AE, Wang V, Rocha MR, Behera R, Speicher DW, Tang HY, Kossenkov AV, Rebecca VW, Wirtz D, Weeraratna AT. Age-Related Increases in IGFBP2 Increase Melanoma Cell Invasion and Lipid Synthesis. CANCER RESEARCH COMMUNICATIONS 2024; 4:1908-1918. [PMID: 39007351 PMCID: PMC11295880 DOI: 10.1158/2767-9764.crc-23-0176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/31/2024] [Accepted: 07/10/2024] [Indexed: 07/16/2024]
Abstract
Aged patients with melanoma (>65 years old) have more aggressive disease relative to young patients (<55 years old) for reasons that are not completely understood. Analysis of the young and aged secretome from human dermal fibroblasts identified >5-fold levels of IGF-binding protein 2 (IGFBP2) in the aged fibroblast secretome. IGFBP2 functionally triggers upregulation of the PI3K-dependent fatty acid biosynthesis program in melanoma cells. Melanoma cells co-cultured with aged dermal fibroblasts have higher levels of lipids relative to those co-cultured with young dermal fibroblasts, which can be lowered by silencing IGFBP2 expression in fibroblasts prior to treating with conditioned media. Conversely, ectopically treating melanoma cells with recombinant IGFBP2 in the presence of conditioned media from young fibroblasts or overexpressing IGFBP2 in melanoma cells promoted lipid synthesis and accumulation in melanoma cells. Treatment of young mice with rIGFBP2 increases tumor growth. Neutralizing IGFBP2 in vitro reduces migration and invasion in melanoma cells, and in vivo studies demonstrate that neutralizing IGFBP2 in syngeneic aged mice reduces tumor growth and metastasis. Our results suggest that aged dermal fibroblasts increase melanoma cell aggressiveness through increased secretion of IGFBP2, stressing the importance of considering age when designing studies and treatment. SIGNIFICANCE The aged microenvironment drives metastasis in melanoma cells. This study reports that IGFBP2 secretion by aged fibroblasts induces lipid accumulation in melanoma cells, driving an increase in tumor invasiveness. Neutralizing IGFBP2 decreases melanoma tumor growth and metastasis.
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Affiliation(s)
- Gretchen M. Alicea
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland.
| | - Payal Patel
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland.
| | - Marie E. Portuallo
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Mitchell E. Fane
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- The Fox Chase Cancer Center, Philadelphia, Pennsylvania.
| | - Meihan Wei
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Yash Chhabra
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- The Fox Chase Cancer Center, Philadelphia, Pennsylvania.
| | - Agrani Dixit
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Alexis E. Carey
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Vania Wang
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Murilo R. Rocha
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Reeti Behera
- The Wistar Institute, Philadelphia, Pennsylvania.
| | | | | | | | - Vito W. Rebecca
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
| | - Denis Wirtz
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland.
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland.
| | - Ashani T. Weeraratna
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
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Ahmed YB, Ababneh OE, Al-Khalili AA, Serhan A, Hatamleh Z, Ghammaz O, Alkhaldi M, Alomari S. Identification of Hypoxia Prognostic Signature in Glioblastoma Multiforme Based on Bulk and Single-Cell RNA-Seq. Cancers (Basel) 2024; 16:633. [PMID: 38339384 PMCID: PMC10854729 DOI: 10.3390/cancers16030633] [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: 12/20/2023] [Revised: 01/23/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
Glioblastoma (GBM) represents a profoundly aggressive and heterogeneous brain neoplasm linked to a bleak prognosis. Hypoxia, a common feature in GBM, has been linked to tumor progression and therapy resistance. In this study, we aimed to identify hypoxia-related differentially expressed genes (DEGs) and construct a prognostic signature for GBM patients using multi-omics analysis. Patient cohorts were collected from publicly available databases, including the Gene Expression Omnibus (GEO), the Chinese Glioma Genome Atlas (CGGA), and The Cancer Genome Atlas-Glioblastoma Multiforme (TCGA-GBM), to facilitate a comprehensive analysis. Hypoxia-related genes (HRGs) were obtained from the Molecular Signatures Database (MSigDB). Differential expression analysis revealed 41 hypoxia-related DEGs in GBM patients. A consensus clustering approach, utilizing these DEGs' expression patterns, identified four distinct clusters, with cluster 1 showing significantly better overall survival. Machine learning techniques, including univariate Cox regression and LASSO regression, delineated a prognostic signature comprising six genes (ANXA1, CALD1, CP, IGFBP2, IGFBP5, and LOX). Multivariate Cox regression analysis substantiated the prognostic significance of a set of three optimal signature genes (CP, IGFBP2, and LOX). Using the hypoxia-related prognostic signature, patients were classified into high- and low-risk categories. Survival analysis demonstrated that the high-risk group exhibited inferior overall survival rates in comparison to the low-risk group. The prognostic signature showed good predictive performance, as indicated by the area under the curve (AUC) values for one-, three-, and five-year overall survival. Furthermore, functional enrichment analysis of the DEGs identified biological processes and pathways associated with hypoxia, providing insights into the underlying mechanisms of GBM. Delving into the tumor immune microenvironment, our analysis revealed correlations relating the hypoxia-related prognostic signature to the infiltration of immune cells in GBM. Overall, our study highlights the potential of a hypoxia-related prognostic signature as a valuable resource for forecasting the survival outcome of GBM patients. The multi-omics approach integrating bulk sequencing, single-cell analysis, and immune microenvironment assessment enhances our understanding of the intricate biology characterizing GBM, thereby potentially informing the tailored design of therapeutic interventions.
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Affiliation(s)
- Yaman B. Ahmed
- School of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA;
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Obada E. Ababneh
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Anas A. Al-Khalili
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Abdullah Serhan
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Zaid Hatamleh
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Owais Ghammaz
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Mohammad Alkhaldi
- Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (O.E.A.); (A.A.A.-K.); (A.S.); (Z.H.); (O.G.); (M.A.)
| | - Safwan Alomari
- Department of Neurosurgery, School of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA
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Alicea GM, Portuallo ME, Patel P, Fane ME, Carey AE, Speicher D, Tang HY, Kossenkov AV, Rebecca VW, Wirtz DG, Weeraratna AT. Age-related increases in IGFBP2 increase melanoma cell invasion and lipid synthesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.02.539059. [PMID: 37205503 PMCID: PMC10187234 DOI: 10.1101/2023.05.02.539059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Aged melanoma patients (>65 years old) have more aggressive disease relative to young patients (<55 years old) for reasons that are not completely understood. Analysis of the young and aged secretome from human dermal fibroblasts identified >5-fold levels of insulin-like growth factor binding protein 2 (IGFBP2) in the aged fibroblast secretome. IGFBP2 functionally triggers upregulation of the PI3K-dependent fatty acid biosynthesis program in melanoma cells through increases in FASN. Melanoma cells co-cultured with aged dermal fibroblasts have higher levels of lipids relative to young dermal fibroblasts, which can be lowered by silencing IGFBP2 expression in fibroblasts, prior to treating with conditioned media. Conversely, ectopically treating melanoma cells with recombinant IGFBP2 in the presence of conditioned media from young fibroblasts, promoted lipid synthesis and accumulation in the melanoma cells. Neutralizing IGFBP2 in vitro reduces migration and invasion in melanoma cells, and in vivo studies demonstrate that neutralizing IGFBP2 in syngeneic aged mice, ablates tumor growth as well as metastasis. Conversely, ectopic treatment of young mice with IGFBP2 in young mice increases tumor growth and metastasis. Our data reveal that aged dermal fibroblasts increase melanoma cell aggressiveness through increased secretion of IGFBP2, stressing the importance of considering age when designing studies and treatment. Significance The aged microenvironment drives metastasis in melanoma cells. This study reports that IGFBP2 secretion by aged fibroblasts induces FASN in melanoma cells and drives metastasis. Neutralizing IGFBP2 decreases melanoma tumor growth and metastasis.
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Kunhiraman H, McSwain L, Shahab SW, Gershon TR, MacDonald TJ, Kenney AM. IGFBP2 promotes proliferation and cell migration through STAT3 signaling in Sonic hedgehog medulloblastoma. Acta Neuropathol Commun 2023; 11:62. [PMID: 37029430 PMCID: PMC10082504 DOI: 10.1186/s40478-023-01557-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/25/2023] [Indexed: 04/09/2023] Open
Abstract
Medulloblastoma (MB) is the most common pediatric brain malignancy and is divided into four molecularly distinct subgroups: WNT, Sonic Hedgehog (SHHp53mut and SHHp53wt), Group 3, and Group 4. Previous reports suggest that SHH MB features a unique tumor microenvironment compared with other MB groups. To better understand how SHH MB tumor cells interact with and potentially modify their microenvironment, we performed cytokine array analysis of culture media from freshly isolated MB patient tumor cells, spontaneous SHH MB mouse tumor cells and mouse and human MB cell lines. We found that the SHH MB cells produced elevated levels of IGFBP2 compared to non-SHH MBs. We confirmed these results using ELISA, western blotting, and immunofluorescence staining. IGFBP2 is a pleiotropic member of the IGFBP super-family with secreted and intracellular functions that can modulate tumor cell proliferation, metastasis, and drug resistance, but has been understudied in medulloblastoma. We found that IGFBP2 is required for SHH MB cell proliferation, colony formation, and cell migration, through promoting STAT3 activation and upregulation of epithelial to mesenchymal transition markers; indeed, ectopic STAT3 expression fully compensated for IGFBP2 knockdown in wound healing assays. Taken together, our findings reveal novel roles for IGFBP2 in SHH medulloblastoma growth and metastasis, which is associated with very poor prognosis, and they indicate an IGFBP2-STAT3 axis that could represent a novel therapeutic target in medulloblastoma.
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Affiliation(s)
- Haritha Kunhiraman
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA
| | - Leon McSwain
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA
| | - Shubin W Shahab
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA
| | - Timothy R Gershon
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA
| | - Tobey J MacDonald
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Anna Marie Kenney
- Department of Pediatrics, Neuro-Oncology Division and Aflac Cancer and Blood Disorders Center of Children's Healthcare of Atlanta, Emory University, 1760 Haygood Drive, Atlanta, GA, 30322, USA.
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
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5
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Zhang Y, Rabinovsky R, Wei Z, El Fatimy R, Deforzh E, Luan B, Peshkin L, Uhlmann EJ, Krichevsky AM. Secreted PGK1 and IGFBP2 contribute to the bystander effect of miR-10b gene editing in glioma. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 31:265-275. [PMID: 36700043 PMCID: PMC9852814 DOI: 10.1016/j.omtn.2022.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/31/2022] [Indexed: 01/03/2023]
Abstract
MicroRNA-10b (miR-10b) is an essential glioma driver and one of the top candidates for targeted therapies for glioblastoma and other cancers. This unique miRNA controls glioma cell cycle and viability via an array of established conventional and unconventional mechanisms. Previously reported CRISPR-Cas9-mediated miR-10b gene editing of glioma cells in vitro and established orthotopic glioblastoma in mouse models demonstrated the efficacy of this approach and its promise for therapy development. However, therapeutic gene editing in patients' brain tumors may be hampered, among other factors, by the imperfect delivery and distribution of targeting vectors. Here, we demonstrate that miR-10b gene editing in glioma cells triggers a potent bystander effect that leads to the selective cell death of the unedited glioma cells without affecting the normal neuroglial cells. The effect is mediated by the secreted miR-10b targets phosphoglycerate kinase 1 (PGK1) and insulin-like growth factor binding protein 2 (IGFBP2) that block cell-cycle progression and induce glioma cell death. These findings further support the feasibility of therapeutic miR-10b editing without the need to target every cell of the tumor.
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Affiliation(s)
- Yanhong Zhang
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Rosalia Rabinovsky
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Zhiyun Wei
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Rachid El Fatimy
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Evgeny Deforzh
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Bai Luan
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Leonid Peshkin
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Erik J. Uhlmann
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
| | - Anna M. Krichevsky
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Harvard Initiative for RNA Medicine, Boston, MA 02115, USA
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Rončević A, Koruga N, Soldo Koruga A, Debeljak Ž, Rončević R, Turk T, Kretić D, Rotim T, Krivdić Dupan Z, Troha D, Perić M, Šimundić T. MALDI Imaging Mass Spectrometry of High-Grade Gliomas: A Review of Recent Progress and Future Perspective. Curr Issues Mol Biol 2023; 45:838-851. [PMID: 36826000 PMCID: PMC9955680 DOI: 10.3390/cimb45020055] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/22/2022] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Glioblastoma (GBM) is the most common malignancy of the brain with a relatively short median survival and high mortality. Advanced age, high socioeconomic status, exposure to ionizing radiation, and other factors have been correlated with an increased incidence of GBM, while female sex hormones, history of allergies, and frequent use of specific drugs might exert protective effects against this disease. However, none of these explain the pathogenesis of GBM. The most recent WHO classification of CNS tumors classifies neoplasms based on their histopathological and molecular characteristics. Modern laboratory techniques, such as matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry, enable the comprehensive metabolic analysis of the tissue sample. MALDI imaging is able to characterize the spatial distribution of a wide array of biomolecules in a sample, in combination with histological features, without sacrificing the tissue integrity. In this review, we first provide an overview of GBM epidemiology, risk, and protective factors, as well as the recent WHO classification of CNS tumors. We then provide an overview of mass spectrometry workflow, with a focus on MALDI imaging, and recent advances in cancer research. Finally, we conclude the review with studies of GBM that utilized MALDI imaging and offer our perspective on future research.
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Affiliation(s)
- Alen Rončević
- Department of Neurosurgery, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Correspondence: ; Tel.: +385-98-169-8481
| | - Nenad Koruga
- Department of Neurosurgery, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Anamarija Soldo Koruga
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Neurology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Željko Debeljak
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Clinical Institute of Laboratory Diagnostics, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Robert Rončević
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Tajana Turk
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Domagoj Kretić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Tatjana Rotim
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Zdravka Krivdić Dupan
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Diagnostic and Interventional Radiology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Damir Troha
- Department of Radiology, Vinkovci General Hospital, 31000 Osijek, Croatia
| | - Marija Perić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Clinical Cytology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Tihana Šimundić
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Nephrology, University Hospital Center Osijek, 31000 Osijek, Croatia
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Wang Y, Huang P, Wang BG, Murdock T, Cope L, Hsu FC, Wang TL, Shih IM. Spatial Transcriptomic Analysis of Ovarian Cancer Precursors Reveals Reactivation of IGFBP2 during Pathogenesis. Cancer Res 2022; 82:4528-4541. [PMID: 36206311 PMCID: PMC9808976 DOI: 10.1158/0008-5472.can-22-1620] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/15/2022] [Accepted: 10/03/2022] [Indexed: 01/24/2023]
Abstract
Elucidating the earliest pathogenic steps in cancer development is fundamental to improving its early detection and prevention. Ovarian high-grade serous carcinoma (HGSC), a highly aggressive cancer, mostly originates from the fallopian tube epithelium through a precursor stage, serous tubal intraepithelial carcinoma (STIC). In this study, we performed spatial transcriptomic analysis to compare STICs, carcinoma, and their matched normal fallopian tube epithelium. Several differentially expressed genes in STICs and carcinomas were involved in cancer metabolism and detected in a larger independent transcriptomic dataset of ovarian HGSCs. Among these, insulin-like growth factor binding protein-2 (IGFBP2) was found to undergo DNA hypomethylation and to be increased at the protein level in STICs. Pyrosequencing revealed an association of IGFBP2 expression with the methylation state of its proximal enhancer, and 5-azacytidine treatment increased IGFBP2 expression. In postmenopausal fallopian tubes, where most STICs are detected, IGFBP2 immunoreactivity was detected in all 38 proliferatively active STICs but was undetectable in morphologically normal tubal epithelia, including those with TP53 mutations. In premenopausal fallopian tubes, IGFBP2 expression was limited to the secretory epithelium at the proliferative phase, and estradiol treatment increased IGFBP2 expression levels. IGFBP2 knockdown suppressed the growth of IGFBP2-expressing tubal epithelial cells via inactivation of the AKT pathway. Taken together, demethylation of the proximal enhancer of IGFBP2 drives tumor development by maintaining the increased IGFBP2 required for proliferation in an otherwise estrogen-deprived, proliferation-quiescent, and postmenopausal tubal microenvironment. SIGNIFICANCE Molecular studies of the earliest precursor lesions of ovarian cancer reveal a role of IGFBP2 in propelling tumor initiation, providing new insights into ovarian cancer development.
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Affiliation(s)
- Yeh Wang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Peng Huang
- Biostatistics Division, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Brant G. Wang
- Department of Pathology, Inova Fairfax Hospital, Falls Church, Virginia
| | - Tricia Murdock
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Leslie Cope
- Biostatistics Division, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Fang-Chi Hsu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Tian-Li Wang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland,Department of Gynecology and Obstetrics and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ie-Ming Shih
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland,Department of Gynecology and Obstetrics and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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circSMARCA5 Is an Upstream Regulator of the Expression of miR-126-3p, miR-515-5p, and Their mRNA Targets, Insulin-like Growth Factor Binding Protein 2 ( IGFBP2) and NRAS Proto-Oncogene, GTPase ( NRAS) in Glioblastoma. Int J Mol Sci 2022; 23:ijms232213676. [PMID: 36430152 PMCID: PMC9690846 DOI: 10.3390/ijms232213676] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/10/2022] Open
Abstract
The involvement of non-coding RNAs (ncRNAs) in glioblastoma multiforme (GBM) pathogenesis and progression has been ascertained but their cross-talk within GBM cells remains elusive. We previously demonstrated the role of circSMARCA5 as a tumor suppressor (TS) in GBM. In this paper, we explore the involvement of circSMARCA5 in the control of microRNA (miRNA) expression in GBM. By using TaqMan® low-density arrays, the expression of 748 miRNAs was assayed in U87MG overexpressing circSMARCA5. Differentially expressed (DE) miRNAs were validated through single TaqMan® assays in: (i) U87MG overexpressing circSMARCA5; (ii) four additional GBM cell lines (A172; CAS-1; SNB-19; U251MG); (iii) thirty-eight GBM biopsies; (iv) twenty biopsies of unaffected brain parenchyma (UC). Validated targets of DE miRNAs were selected from the databases TarBase and miRTarbase, and the literature; their expression was inferred from the GBM TCGA dataset. Expression was assayed in U87MG overexpressing circSMARCA5, GBM cell lines, and biopsies through real-time PCR. TS miRNAs 126-3p and 515-5p were upregulated following circSMARCA5 overexpression in U87MG and their expression was positively correlated with that of circSMARCA5 (r-values = 0.49 and 0.50, p-values = 9 × 10-5 and 7 × 10-5, respectively) in GBM biopsies. Among targets, IGFBP2 (target of miR-126-3p) and NRAS (target of miR-515-5p) mRNAs were positively correlated (r-value = 0.46, p-value = 0.00027), while their expression was negatively correlated with that of circSMARCA5 (r-values = -0.58 and -0.30, p-values = 0 and 0.019, respectively), miR-126-3p (r-value = -0.36, p-value = 0.0066), and miR-515-5p (r-value = -0.34, p-value = 0.010), respectively. Our data identified a new GBM subnetwork controlled by circSMARCA5, which regulates downstream miRNAs 126-3p and 515-5p, and their mRNA targets IGFBP2 and NRAS.
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9
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Zhu Z, Fang C, Xu H, Yuan L, Du Y, Ni Y, Xu Y, Shao A, Zhang A, Lou M. Anoikis resistance in diffuse glioma: The potential therapeutic targets in the future. Front Oncol 2022; 12:976557. [PMID: 36046036 PMCID: PMC9423707 DOI: 10.3389/fonc.2022.976557] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/25/2022] [Indexed: 11/28/2022] Open
Abstract
Glioma is the most common malignant intracranial tumor and exhibits diffuse metastasis and a high recurrence rate. The invasive property of glioma results from cell detachment. Anoikis is a special form of apoptosis that is activated upon cell detachment. Resistance to anoikis has proven to be a protumor factor. Therefore, it is suggested that anoikis resistance commonly occurs in glioma and promotes diffuse invasion. Several factors, such as integrin, E-cadherin, EGFR, IGFR, Trk, TGF-β, the Hippo pathway, NF-κB, eEF-2 kinase, MOB2, hypoxia, acidosis, ROS, Hsp and protective autophagy, have been shown to induce anoikis resistance in glioma. In our present review, we aim to summarize the underlying mechanism of resistance and the therapeutic potential of these molecules.
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Affiliation(s)
- Zhengyang Zhu
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chaoyou Fang
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Houshi Xu
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Yuan
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yichao Du
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunjia Ni
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanzhi Xu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Anwen Shao
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Neurosurgery, Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China
| | - Anke Zhang
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Neurosurgery, Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, China
| | - Meiqing Lou
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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10
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Pan X, Burgman B, Wu E, Huang JH, Sahni N, Stephen Yi S. i-Modern: Integrated multi-omics network model identifies potential therapeutic targets in glioma by deep learning with interpretability. Comput Struct Biotechnol J 2022; 20:3511-3521. [PMID: 35860408 PMCID: PMC9284388 DOI: 10.1016/j.csbj.2022.06.058] [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: 04/24/2022] [Revised: 06/26/2022] [Accepted: 06/26/2022] [Indexed: 12/13/2022] Open
Abstract
Effective and precise classification of glioma patients for their disease risks is critical to improving early diagnosis and patient survival. In the recent past, a significant amount of multi-omics data derived from cancer patients has emerged. However, a robust framework for integrating multi-omics data types to efficiently and precisely subgroup glioma patients and predict survival prognosis is still lacking. In addition, effective therapeutic targets for treating glioma patients with poor prognoses are in dire need. To begin to resolve this difficulty, we developed i-Modern, an integrated Multi-omics deep learning network method, and optimized a sophisticated computational model in gliomas that can accurately stratify patients based on their prognosis. We built a survival-associated predictive framework integrating transcription profile, miRNA expression, somatic mutations, copy number variation (CNV), DNA methylation, and protein expression. This framework achieved promising performance in distinguishing high-risk glioma patients from those with good prognoses. Furthermore, we constructed multiple fully connected neural networks that are trained on prioritized multi-omics signatures or even only potential single-omics signatures, based on our customized scoring system. Together, the landmark multi-omics signatures we identified may serve as potential therapeutic targets in gliomas.
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Affiliation(s)
- Xingxin Pan
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Brandon Burgman
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA.,Interdisciplinary Life Sciences Graduate Programs (ILSGP), College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Erxi Wu
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA.,Neuroscience Institute and Department of Neurosurgery, Baylor Scott & White Health, Temple, TX 76502, USA.,Department of Surgery, Texas A & M University Health Science Center, College of Medicine, Temple, TX 76508, USA.,Department of Pharmaceutical Sciences, Texas A & M University Health Science Center, College of Pharmacy, College Station, TX 77843, USA
| | - Jason H Huang
- Neuroscience Institute and Department of Neurosurgery, Baylor Scott & White Health, Temple, TX 76502, USA.,Department of Surgery, Texas A & M University Health Science Center, College of Medicine, Temple, TX 76508, USA
| | - Nidhi Sahni
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA.,Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.,Quantitative and Computational Biosciences Program, Baylor College of Medicine, Houston, TX 77030, USA
| | - S Stephen Yi
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA.,Department of Surgery, Texas A & M University Health Science Center, College of Medicine, Temple, TX 76508, USA.,Oden Institute for Computational Engineering and Sciences (ICES), The University of Texas at Austin, Austin, TX 78712, USA.,Department of Biomedical Engineering, Cockrell School of Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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11
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Grochans S, Cybulska AM, Simińska D, Korbecki J, Kojder K, Chlubek D, Baranowska-Bosiacka I. Epidemiology of Glioblastoma Multiforme-Literature Review. Cancers (Basel) 2022; 14:2412. [PMID: 35626018 PMCID: PMC9139611 DOI: 10.3390/cancers14102412] [Citation(s) in RCA: 155] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most aggressive malignancies, with a median overall survival of approximately 15 months. In this review, we analyze the pathogenesis of GBM, as well as epidemiological data, by age, gender, and tumor location. The data indicate that GBM is the higher-grade primary brain tumor and is significantly more common in men. The risk of being diagnosed with glioma increases with age, and median survival remains low, despite medical advances. In addition, it is difficult to determine clearly how GBM is influenced by stimulants, certain medications (e.g., NSAIDs), cell phone use, and exposure to heavy metals.
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Affiliation(s)
- Szymon Grochans
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich. 72 St., 70-111 Szczecin, Poland; (S.G.); (D.S.); (J.K.); (D.C.); (I.B.-B.)
| | - Anna Maria Cybulska
- Department of Nursing, Pomeranian Medical University in Szczecin, Żołnierska 48 St., 71-210 Szczecin, Poland
| | - Donata Simińska
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich. 72 St., 70-111 Szczecin, Poland; (S.G.); (D.S.); (J.K.); (D.C.); (I.B.-B.)
| | - Jan Korbecki
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich. 72 St., 70-111 Szczecin, Poland; (S.G.); (D.S.); (J.K.); (D.C.); (I.B.-B.)
- Department of Ruminants Science, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Klemensa Janickiego 29 St., 71-270 Szczecin, Poland
| | - Klaudyna Kojder
- Department of Anaesthesiology and Intensive Care, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1 St., 71-281 Szczecin, Poland;
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich. 72 St., 70-111 Szczecin, Poland; (S.G.); (D.S.); (J.K.); (D.C.); (I.B.-B.)
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich. 72 St., 70-111 Szczecin, Poland; (S.G.); (D.S.); (J.K.); (D.C.); (I.B.-B.)
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12
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Gheorghiu A, Brunborg C, Johannesen TB, Helseth E, Zwart JA, Wiedmann MKH. The impact of body mass index and height on risk for primary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves in 1.7 million norwegian women and men: a prospective cohort study. Acta Oncol 2022; 61:1-6. [PMID: 35001805 DOI: 10.1080/0284186x.2021.2009562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND Primary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves comprise a heterogenous group of pathology, dominantly represented by meningioma, nerve sheath tumours (NST) and glioma. Body height and body mass index (BMI) are risk factors for certain brain tumour subgroups, but no other study has specifically assessed height and BMI in relation to primary tumours of the spine and peripheral nerves in women and men. METHODS In this prospective population-based cohort study height and weight were measured in 1.7 million adult Norwegian women and men at baseline. Incident cases of primary tumours arising from the spinal cord, spinal meninges, spinal and peripheral nerves during follow-up were identified by linkage to the National Cancer Registry. Tumour risk was assessed by Cox regression analyses in relation to height and BMI. RESULTS During 49 million person-years of follow-up, 857 primary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves were identified. Overweight and obesity were not associated with risk for all tumours or any tumour subgroup. Height was positively associated with risk for all tumours (HR per 10 cm increase: 1.30, 95% CI 1.16-1.46). The association between height and tumour risk varied between tumour subgroups: while height was not significantly associated with NST, height increased the risk for meningioma (HR 1.42, 95% CI 1.13-1.78) and glioma (HR 1.56, 95% CI 1.06-2.28). The strongest association between height and tumour risk was found for the glioma subgroup of ependymoma in women (HR 3.38, 95% CI 1.64-6.94). CONCLUSION This study could not identify overweight and obesity as risk factors for primary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves in women or men. Increasing body height was associated with increased tumour risk overall, but not universal for all tumour subgroups.Importance of the studyPrimary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves have received little focus in epidemiologic studies, although the incidence and histo-pathological tumour subgroups differ significantly from primary brain tumours. Risk factors for these tumours have hardly been assessed in previous studies. Height, overweight and obesity are known risk factors for several cancers, including certain brain tumour subgroups, such as meningioma.This is the first study to report the association between height, overweight and obesity and primary tumours of the spinal cord, spinal meninges, spinal and peripheral nerves. This includes tumour subgroups of meningioma, nerve sheath tumour, glioma and the most common spinal glioma subgroup of ependymoma. While overweight and obesity were not associated with either of the tumour subgroups, an association between increasing body height and risk for spinal meningioma and glioma, including ependymoma, was found. Nerve sheath tumour risk was not associated with increasing body height.
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Affiliation(s)
- Anamaria Gheorghiu
- Department of Neurosurgery, Bagdasar-Arseni University Hospital, Bucharest, Romania
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Cathrine Brunborg
- Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway
| | | | - Eirik Helseth
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway
| | - John A. Zwart
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
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13
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Shimizu M, Koma YI, Sakamoto H, Tsukamoto S, Kitamura Y, Urakami S, Tanigawa K, Kodama T, Higashino N, Nishio M, Shigeoka M, Kakeji Y, Yokozaki H. Metallothionein 2A Expression in Cancer-Associated Fibroblasts and Cancer Cells Promotes Esophageal Squamous Cell Carcinoma Progression. Cancers (Basel) 2021; 13:4552. [PMID: 34572779 PMCID: PMC8464741 DOI: 10.3390/cancers13184552] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 12/20/2022] Open
Abstract
Esophageal cancer has the sixth highest mortality rate worldwide. Cancer-associated fibroblasts (CAFs) are involved in the progression of various cancers. Previously, we demonstrated an association between high expression of the CAF marker, fibroblast activation protein, and poor prognosis of esophageal squamous cell carcinoma (ESCC). We also established CAF-like cells by indirect co-culture of bone marrow-derived mesenchymal stem cells with ESCC cell lines and found metallothionein 2A (MT2A) to be highly expressed in them. Here, to explore the function of MT2A in CAFs, we silenced MT2A in the CAF-like cells and ESCC cell lines using small interfering RNA. MT2A knockdown in the CAF-like cells suppressed expression and secretion of insulin-like growth factor binding protein 2 (IGFBP2); recombinant IGFBP2 promoted migration and invasiveness of ESCC cells via NFκB, Akt, and Erk signaling pathways. Furthermore, MT2A knockdown in the ESCC cell lines inhibited their growth, migration, and invasiveness. Immunohistochemistry demonstrated that high MT2A expression in the cancer stroma and cancer nest of ESCC tissues correlated with poor prognosis of ESCC patients. Hence, we report that MT2A in CAFs and cancer cells contributes to ESCC progression. MT2A and IGFBP2 are potential novel therapeutic targets in ESCC.
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Affiliation(s)
- Masaki Shimizu
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Yu-ichiro Koma
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
| | - Hiroki Sakamoto
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Shuichi Tsukamoto
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
| | - Yu Kitamura
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Satoshi Urakami
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Kohei Tanigawa
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Takayuki Kodama
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
| | - Nobuhide Higashino
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Mari Nishio
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
| | - Manabu Shigeoka
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
| | - Yoshihiro Kakeji
- Division of Gastro-intestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan;
| | - Hiroshi Yokozaki
- Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan; (M.S.); (H.S.); (S.T.); (Y.K.); (S.U.); (K.T.); (T.K.); (N.H.); (M.N.); (M.S.); (H.Y.)
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14
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Kalya M, Kel A, Wlochowitz D, Wingender E, Beißbarth T. IGFBP2 Is a Potential Master Regulator Driving the Dysregulated Gene Network Responsible for Short Survival in Glioblastoma Multiforme. Front Genet 2021; 12:670240. [PMID: 34211498 PMCID: PMC8239365 DOI: 10.3389/fgene.2021.670240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 04/06/2021] [Indexed: 01/01/2023] Open
Abstract
Only 2% of glioblastoma multiforme (GBM) patients respond to standard therapy and survive beyond 36 months (long-term survivors, LTS), while the majority survive less than 12 months (short-term survivors, STS). To understand the mechanism leading to poor survival, we analyzed publicly available datasets of 113 STS and 58 LTS. This analysis revealed 198 differentially expressed genes (DEGs) that characterize aggressive tumor growth and may be responsible for the poor prognosis. These genes belong largely to the Gene Ontology (GO) categories “epithelial-to-mesenchymal transition” and “response to hypoxia.” In this article, we applied an upstream analysis approach that involves state-of-the-art promoter analysis and network analysis of the dysregulated genes potentially responsible for short survival in GBM. Binding sites for transcription factors (TFs) associated with GBM pathology like NANOG, NF-κB, REST, FRA-1, PPARG, and seven others were found enriched in the promoters of the dysregulated genes. We reconstructed the gene regulatory network with several positive feedback loops controlled by five master regulators [insulin-like growth factor binding protein 2 (IGFBP2), vascular endothelial growth factor A (VEGFA), VEGF165, platelet-derived growth factor A (PDGFA), adipocyte enhancer-binding protein (AEBP1), and oncostatin M (OSMR)], which can be proposed as biomarkers and as therapeutic targets for enhancing GBM prognosis. A critical analysis of this gene regulatory network gives insights into the mechanism of gene regulation by IGFBP2 via several TFs including the key molecule of GBM tumor invasiveness and progression, FRA-1. All the observations were validated in independent cohorts, and their impact on overall survival has been investigated.
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Affiliation(s)
- Manasa Kalya
- Department of Medical Bioinformatics, University Medical Center Göttingen, Göttingen, Germany.,geneXplain GmbH, Wolfenbüttel, Germany
| | - Alexander Kel
- geneXplain GmbH, Wolfenbüttel, Germany.,Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Darius Wlochowitz
- Department of Medical Bioinformatics, University Medical Center Göttingen, Göttingen, Germany
| | | | - Tim Beißbarth
- Department of Medical Bioinformatics, University Medical Center Göttingen, Göttingen, Germany
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15
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Kalya MP, Beisbarth T, Kel A. [Master regulators associated with poor prognosis in glioblastoma multiforme]. BIOMEDITSINSKAIA KHIMIIA 2021; 67:201-212. [PMID: 34142527 DOI: 10.18097/pbmc20216703201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Glioblastoma multiforme (GBM) is a highly malignant brain tumor with average survival time of 15 months. Less than 2% of the patients survive beyond 36 months. To understand the molecular mechanism responsible for poor prognosis, we analyzed GBM samples of TCGA microarray (n=560) data. We have identified 720 genes that have a significant impact upon survival based on univariate cox regression. We applied the Genome Enhancer pipeline to analyze potential mechanisms of regulation of activity of these genes and to build gene regulatory networks. We identified 12 transcription factors enriched in the promoters of these genes including the key molecule of GBM - STAT3. We found that STAT3 had significant differential expression across extreme survivor groups (short-term survivors- survival 36 months) and also had a significant impact on survival. In the next step, we identified master regulators in the signal transduction network that regulate the activity of these transcription factors. Master regulators are filtered based on their differential expression across extreme survivors groups and impact on survival. This work validates our earlier report on master regulators IGFBP2, PDGFA, OSMR, and AEBP1 driving short survival. Additionally, we propose CD14, CD44, DUSP6, GRB10, IL1RAP, FGFR3, and POSTN as master regulators driving poor survival. These master regulators are proposed as promising therapeutic targets to counter poor prognosis in GBM. Finally, the algorithm has prioritized several drugs for the further study as potential remedies to conquer the aggressive forms of GBM and to extend survival of the patients.
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Affiliation(s)
- M P Kalya
- University Medical Center Göttingen, Göttingen, Germany; geneXplain GmbH, Wolfenbüttel, Germany
| | - T Beisbarth
- University Medical Center Göttingen, Göttingen, Germany
| | - A Kel
- geneXplain GmbH, Wolfenbüttel, Germany; Institute of Chemical Biology and Fundamental Medicine SBRAS, Novosibirsk, Russia
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16
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Boughanem H, Yubero-Serrano EM, López-Miranda J, Tinahones FJ, Macias-Gonzalez M. Potential Role of Insulin Growth-Factor-Binding Protein 2 as Therapeutic Target for Obesity-Related Insulin Resistance. Int J Mol Sci 2021; 22:ijms22031133. [PMID: 33498859 PMCID: PMC7865532 DOI: 10.3390/ijms22031133] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/13/2021] [Accepted: 01/21/2021] [Indexed: 12/26/2022] Open
Abstract
Evidence from observational and in vitro studies suggests that insulin growth-factor-binding protein type 2 (IGFBP2) is a promising protein in non-communicable diseases, such as obesity, insulin resistance, metabolic syndrome, or type 2 diabetes. Accordingly, great efforts have been carried out to explore the role of IGFBP2 in obesity state and insulin-related diseases, which it is typically found decreased. However, the physiological pathways have not been explored yet, and the relevance of IGFBP2 as an important pathway integrator of metabolic disorders is still unknown. Here, we review and discuss the molecular structure of IGFBP2 as the first element of regulating the expression of IGFBP2. We highlight an update of the association between low serum IGFBP2 and an increased risk of obesity, type 2 diabetes, metabolic syndrome, and low insulin sensitivity. We hypothesize mechanisms of IGFBP2 on the development of obesity and insulin resistance in an insulin-independent manner, which meant that could be evaluated as a therapeutic target. Finally, we cover the most interesting lifestyle modifications that regulate IGFBP2, since lifestyle factors (diet and/or physical activity) are associated with important variations in serum IGFBP2.
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Affiliation(s)
- Hatim Boughanem
- Department of Endocrinology and Nutrition, Institute of Biomedical Research Institute in Malaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain;
| | - Elena M. Yubero-Serrano
- Lipids and Atherosclerosis Unit, Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Reina Sofia University Hospital, University of Córdoba, 14004 Córdoba, Spain; (E.M.Y.-S.); (J.L.-M.)
- CIBEROBN (CIBER in Physiopathology of Obesity and Nutrition), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - José López-Miranda
- Lipids and Atherosclerosis Unit, Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Reina Sofia University Hospital, University of Córdoba, 14004 Córdoba, Spain; (E.M.Y.-S.); (J.L.-M.)
- CIBEROBN (CIBER in Physiopathology of Obesity and Nutrition), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Francisco J. Tinahones
- Department of Endocrinology and Nutrition, Institute of Biomedical Research Institute in Malaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain;
- CIBEROBN (CIBER in Physiopathology of Obesity and Nutrition), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (F.J.T.); (M.M.-G.); Tel.: +34-951-036-2647 (F.J.T. & M.M.-G.); Fax: +34-951-924-651 (F.J.T. & M.M.-G.)
| | - Manuel Macias-Gonzalez
- Department of Endocrinology and Nutrition, Institute of Biomedical Research Institute in Malaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain;
- CIBEROBN (CIBER in Physiopathology of Obesity and Nutrition), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (F.J.T.); (M.M.-G.); Tel.: +34-951-036-2647 (F.J.T. & M.M.-G.); Fax: +34-951-924-651 (F.J.T. & M.M.-G.)
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17
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Hub gene identification and prognostic model construction for isocitrate dehydrogenase mutation in glioma. Transl Oncol 2020; 14:100979. [PMID: 33290989 PMCID: PMC7720094 DOI: 10.1016/j.tranon.2020.100979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/09/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022] Open
Abstract
We identified ten hub genes which were driving IDH status in GBM and LGG. We constructed a prognostic model for IDH-mutant patients. Our findings have important clinical implications for accurate treatment in glioma.
Our study attempted to identify hub genes related to isocitrate dehydrogenase (IDH) mutation in glioma and develop a prognostic model for IDH-mutant glioma patients. In a first step, ten hub genes significantly associated with the IDH status were identified by weighted gene coexpression analysis (WGCNA). The functional enrichment analysis demonstrated that the most enriched terms of these hub genes were cadherin binding and glutathione metabolism. Three of these hub genes were significantly linked with the survival of glioma patients. 328 samples of IDH-mutant glioma were separated into two datasets: a training set (N = 228) and a test set (N = 100). Based on the training set, we identified two IDH-mutant subtypes with significantly different pathological features by using consensus clustering. A 31 gene-signature was identified by the least absolute shrinkage and selection operator (LASSO) algorithm and used for establishing a differential prognostic model for IDH-mutant patients. In addition, the test set was employed for validating the prognostic model, and the model was proven to be of high value in classifying prognostic information of samples. The functional annotation revealed that the genes related to the model were mainly enriched in nuclear division, DNA replication, and cell cycle. Collectively, this study provided novel insights into the molecular mechanism of IDH mutation in glioma, and constructed a prognostic model which can be effective for predicting prognosis of glioma patients with IDH-mutation, which might promote the development of IDH target agents in glioma therapies and contribute to accurate prognostication and management in IDH-mutant glioma patients.
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18
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Multivariate analysis reveals differentially expressed genes among distinct subtypes of diffuse astrocytic gliomas: diagnostic implications. Sci Rep 2020; 10:11270. [PMID: 32647207 PMCID: PMC7347847 DOI: 10.1038/s41598-020-67743-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 06/09/2020] [Indexed: 12/18/2022] Open
Abstract
Diagnosis and classification of gliomas mostly relies on histopathology and a few genetic markers. Here we interrogated microarray gene expression profiles (GEP) of 268 diffuse astrocytic gliomas-33 diffuse astrocytomas (DA), 52 anaplastic astrocytomas (AA) and 183 primary glioblastoma (GBM)-based on multivariate analysis, to identify discriminatory GEP that might support precise histopathological tumor stratification, particularly among inconclusive cases with II-III grade diagnosed, which have different prognosis and treatment strategies. Microarrays based GEP was analyzed on 155 diffuse astrocytic gliomas (discovery cohort) and validated in another 113 tumors (validation set) via sequential univariate analysis (pairwise comparison) for discriminatory gene selection, followed by nonnegative matrix factorization and canonical biplot for identification of discriminatory GEP among the distinct histological tumor subtypes. GEP data analysis identified a set of 27 genes capable of differentiating among distinct subtypes of gliomas that might support current histological classification. DA + AA showed similar molecular profiles with only a few discriminatory genes overexpressed (FSTL5 and SFRP2) and underexpressed (XIST, TOP2A and SHOX2) in DA vs AA and GBM. Compared to DA + AA, GBM displayed underexpression of ETNPPL, SH3GL2, GABRG2, SPX, DPP10, GABRB2 and CNTN3 and overexpression of CHI3L1, IGFBP3, COL1A1 and VEGFA, among other differentially expressed genes.
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Mirchia K, Richardson TE. Beyond IDH-Mutation: Emerging Molecular Diagnostic and Prognostic Features in Adult Diffuse Gliomas. Cancers (Basel) 2020; 12:E1817. [PMID: 32640746 PMCID: PMC7408495 DOI: 10.3390/cancers12071817] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 12/19/2022] Open
Abstract
Diffuse gliomas are among the most common adult central nervous system tumors with an annual incidence of more than 16,000 cases in the United States. Until very recently, the diagnosis of these tumors was based solely on morphologic features, however, with the publication of the WHO Classification of Tumours of the Central Nervous System, revised 4th edition in 2016, certain molecular features are now included in the official diagnostic and grading system. One of the most significant of these changes has been the division of adult astrocytomas into IDH-wildtype and IDH-mutant categories in addition to histologic grade as part of the main-line diagnosis, although a great deal of heterogeneity in the clinical outcome still remains to be explained within these categories. Since then, numerous groups have been working to identify additional biomarkers and prognostic factors in diffuse gliomas to help further stratify these tumors in hopes of producing a more complete grading system, as well as understanding the underlying biology that results in differing outcomes. The field of neuro-oncology is currently in the midst of a "molecular revolution" in which increasing emphasis is being placed on genetic and epigenetic features driving current diagnostic, prognostic, and predictive considerations. In this review, we focus on recent advances in adult diffuse glioma biomarkers and prognostic factors and summarize the state of the field.
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Affiliation(s)
- Kanish Mirchia
- Department of Pathology, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA;
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20
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Yang J, Wang L, Xu Z, Wu L, Liu B, Wang J, Tian D, Xiong X, Chen Q. Integrated Analysis to Evaluate the Prognostic Value of Signature mRNAs in Glioblastoma Multiforme. Front Genet 2020; 11:253. [PMID: 32296458 PMCID: PMC7136556 DOI: 10.3389/fgene.2020.00253] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/02/2020] [Indexed: 12/13/2022] Open
Abstract
Background Gliomas are the most common intracranial tumors and are classified as I-IV. Among them, glioblastoma multiforme (GBM) is the most common invasive glioma with a poor prognosis. New molecular biomarkers that can predict clinical outcomes in GBM patients must be identified, which will help comprehend their pathogenesis and supply personalized treatment. Our research revealed four powerful survival indicators in GBM by reanalyzing microarray data and genetic sequencing data in public databases. Moreover, it unraveled new potential therapeutic targets which could help improve the survival time and quality of life of GBM patients. Materials and Methods To identify prognostic signatures in GBMs, we analyzed the gene profiling data of GBM and standard brain samples from the Gene Expression Omnibus, including four datasets and RNA sequencing data from The Cancer Genome Atlas (TCGA) containing 152 glioblastoma tissues. We performed the differential analysis, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, weighted gene co-expression network analysis (WGCNA) and Cox regression analysis. Results After differential analysis in GSE12657, GSE15824, GSE42656 and GSE50161, overlapping differentially expressed genes were identified. We identified 110 up-regulated DEGs and 75 down-regulated DEGs in the GBM samples. Significantly enriched subclasses of the GO classification of these genes included mitotic sister chromatid separation, mitotic nuclear division and so on. In KEGG pathway analysis, the most abundant terms were ECM-receptor interaction and protein digestion and absorption. WGCNA analysis was performed on these 185 DEGs in 152 glioblastoma samples obtained from TCGA, and gene co-expression networks were constructed. We then performed a multivariate Cox analysis and established a Cox proportional hazards regression model using the top 20 genes significantly correlated with survival time. We identified a four-protein prognostic signature that could divide patients into high-risk and low-risk groups. Increased expression of SLC12A5, CCL2, IGFBP2, and PDPN was associated with increased risk scores. Finally, the K-M curves confirmed that these genes could be used as independent predictors of survival in patients with glioblastoma. Conclusion Our analytical study identified a set of potential biomarkers that could predict survival and may contribute to successful treatment of GBM patients.
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Affiliation(s)
- Ji'an Yang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Long Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhou Xu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Liquan Wu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Baohui Liu
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Junmin Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Daofeng Tian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
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21
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Xue W, Ton H, Zhang J, Xie T, Chen X, Zhou B, Guo Y, Fang J, Wang S, Zhang W. Patient‑derived orthotopic xenograft glioma models fail to replicate the magnetic resonance imaging features of the original patient tumor. Oncol Rep 2020; 43:1619-1629. [PMID: 32323818 PMCID: PMC7107810 DOI: 10.3892/or.2020.7538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 02/12/2020] [Indexed: 12/14/2022] Open
Abstract
Patient-derived orthotopic glioma xenograft models are important platforms used for pre-clinical research of glioma. In the present study, the diagnostic ability of magnetic resonance imaging (MRI) was examined with regard to the identification of biomarkers obtained from patient-derived glioma xenografts and human tumors. Conventional MRI, diffusion weighted imaging and dynamic contrast-enhanced (DCE)-MRI were used to analyze seven pairs of high grade gliomas with their corresponding xenografts obtained from non-obese diabetic-severe-combined immunodeficiency nude mice. Tumor samples were collected for transcriptome sequencing and histopathological staining, and differentially expressed genes were screened between the original tumors and the corresponding xenografts. Gene Ontology (GO) analysis was performed to predict the functions of these genes. In 6 cases of xenografts with diffuse growth, the degree of enhancement was significantly lower compared with the original tumors. Histopathological staining indicated that the microvascular area and microvascular diameter of the xenografts were significantly lower compared with the original tumors (P=0.009 and P=0.007, respectively). In one case, there was evidence of nodular tumor growth in the mouse. Both MRI and histopathological staining showed a clear demarcation between the transplanted tumors and the normal brain tissues. The relative apparent diffusion coefficient values of the 7 cases examined were significantly higher compared with the corresponding original tumors (P=0.001) and transfer coefficient values derived from DCE-MRI of the tumor area was significantly lower compared with the original tumors (P=0.016). GO analysis indicated that the expression levels of extracellular matrix-associated genes, angiogenesis-associated genes and immune function-associated genes in the original tumors were higher compared with the corresponding xenografts. In conclusion, the data demonstrated that the MRI features of patient-derived xenograft glioma models in mice were different compared with those of the original patient tumors. Differential gene expression may underlie the differences noted in the MRI features between original tumors and corresponding xenografts. The results of the present study highlight the precautions that should be taken when extrapolating data from patient-derived xenograft studies, and their applicability to humans.
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Affiliation(s)
- Wei Xue
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Haipeng Ton
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Junfeng Zhang
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Tian Xie
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Xiao Chen
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Bo Zhou
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Yu Guo
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Jingqin Fang
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Shunan Wang
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
| | - Weiguo Zhang
- Department of Radiology, Daping Hospital, Army Medical University, Chongqing 400042, P.R. China
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22
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Yang W, Warrington NM, Taylor SJ, Whitmire P, Carrasco E, Singleton KW, Wu N, Lathia JD, Berens ME, Kim AH, Barnholtz-Sloan JS, Swanson KR, Luo J, Rubin JB. Sex differences in GBM revealed by analysis of patient imaging, transcriptome, and survival data. Sci Transl Med 2020; 11:11/473/eaao5253. [PMID: 30602536 DOI: 10.1126/scitranslmed.aao5253] [Citation(s) in RCA: 200] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 08/20/2018] [Accepted: 12/05/2018] [Indexed: 12/11/2022]
Abstract
Sex differences in the incidence and outcome of human disease are broadly recognized but, in most cases, not sufficiently understood to enable sex-specific approaches to treatment. Glioblastoma (GBM), the most common malignant brain tumor, provides a case in point. Despite well-established differences in incidence and emerging indications of differences in outcome, there are few insights that distinguish male and female GBM at the molecular level or allow specific targeting of these biological differences. Here, using a quantitative imaging-based measure of response, we found that standard therapy is more effective in female compared with male patients with GBM. We then applied a computational algorithm to linked GBM transcriptome and outcome data and identified sex-specific molecular subtypes of GBM in which cell cycle and integrin signaling are the critical determinants of survival for male and female patients, respectively. The clinical relevance of cell cycle and integrin signaling pathway signatures was further established through correlations between gene expression and in vitro chemotherapy sensitivity in a panel of male and female patient-derived GBM cell lines. Together, these results suggest that greater precision in GBM molecular subtyping can be achieved through sex-specific analyses and that improved outcomes for all patients might be accomplished by tailoring treatment to sex differences in molecular mechanisms.
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Affiliation(s)
- Wei Yang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Nicole M Warrington
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Sara J Taylor
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Paula Whitmire
- Precision Neurotherapeutics Innovation Program, Mathematical NeuroOncology Lab, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Eduardo Carrasco
- Precision Neurotherapeutics Innovation Program, Mathematical NeuroOncology Lab, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Kyle W Singleton
- Precision Neurotherapeutics Innovation Program, Mathematical NeuroOncology Lab, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Ningying Wu
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO 63110, USA.,School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ 85281, USA
| | - Justin D Lathia
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland OH, 44195, USA
| | | | - Albert H Kim
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO 63110, USA.,Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Jill S Barnholtz-Sloan
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Kristin R Swanson
- Precision Neurotherapeutics Innovation Program, Mathematical NeuroOncology Lab, Mayo Clinic, Phoenix, AZ 85054, USA.,School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ 85281, USA
| | - Jingqin Luo
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO 63110, USA. .,Siteman Cancer Center Biostatistics Core, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Joshua B Rubin
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA. .,Department of Neuroscience, Washington University School of Medicine, St. Louis, MO 63110, USA
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IGFBP2: integrative hub of developmental and oncogenic signaling network. Oncogene 2020; 39:2243-2257. [PMID: 31925333 DOI: 10.1038/s41388-020-1154-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/16/2019] [Accepted: 12/31/2019] [Indexed: 01/08/2023]
Abstract
Insulin-like growth factor (IGF) binding protein 2 (IGFBP2) was discovered and identified as an IGF system regulator, controlling the distribution, function, and activity of IGFs in the pericellular space. IGFBP2 is a developmentally regulated gene that is highly expressed in embryonic and fetal tissues and markedly decreases after birth. Studies over the last decades have shown that in solid tumors, IGFBP2 is upregulated and promotes several key oncogenic processes, such as epithelial-to-mesenchymal transition, cellular migration, invasion, angiogenesis, stemness, transcriptional activation, and epigenetic programming via signaling that is often independent of IGFs. Growing evidence indicates that aberrant expression of IGFBP2 in cancer acts as a hub of an oncogenic network, integrating multiple cancer signaling pathways and serving as a potential therapeutic target for cancer treatment.
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24
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Lee M, Han SW, Seok J. Prediction of survival risks with adjusted gene expression through risk-gene networks. Bioinformatics 2019; 35:4898-4906. [PMID: 31095279 DOI: 10.1093/bioinformatics/btz399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 04/17/2019] [Accepted: 05/07/2019] [Indexed: 11/14/2022] Open
Abstract
MOTIVATION Network-based analysis of biomedical data has been extensively studied over the last decades. As a successful application, gene networks have been used to illustrate interactions among genes and explain the associated phenotypes. However, the gene network approaches have not been actively applied for survival analysis, which is one of the main interests of biomedical research. In addition, a few previous studies using gene networks for survival analysis construct networks mainly from prior knowledge, such as pathways, regulations and gene sets, while the performance considerably depends on the selection of prior knowledge. RESULTS In this paper, we propose a data-driven construction method for survival risk-gene networks as well as a survival risk prediction method using the network structure. The proposed method constructs risk-gene networks with survival-associated genes using penalized regression. Then, gene expression indices are hierarchically adjusted through the networks to reduce the variance intrinsic in datasets. By illustrating risk-gene structure, the proposed method is expected to provide an intuition for the relationship between genes and survival risks. The risk-gene network is applied to a low grade glioma dataset, and produces a hypothesis of the relationship between genetic biomarkers of low and high grade glioma. Moreover, with multiple datasets, we demonstrate that the proposed method shows superior prediction performance compared to other conventional methods. AVAILABILITY AND IMPLEMENTATION The R package of risk-gene networks is freely available in the web at http://cdal.korea.ac.kr/NetDA/. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Minhyeok Lee
- School of Electrical Engineering, Korea University, Seoul, South Korea
| | - Sung Won Han
- School of Industrial Management Engineering, Korea University, Seoul, South Korea
| | - Junhee Seok
- School of Electrical Engineering, Korea University, Seoul, South Korea
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25
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Liu Y, Song C, Shen F, Zhang J, Song SW. IGFBP2 promotes immunosuppression associated with its mesenchymal induction and FcγRIIB phosphorylation in glioblastoma. PLoS One 2019; 14:e0222999. [PMID: 31560714 PMCID: PMC6764691 DOI: 10.1371/journal.pone.0222999] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/11/2019] [Indexed: 11/19/2022] Open
Abstract
Immunotherapy shows a promise for treating glioblastoma (GBM), the most malignant and immunosuppressive glioma. The mesenchymal phenotype of cancer cells was frequently reported to be associated with their induction of immunosuppression within the cancer microenvironment. Overexpressed insulin-like growth factor binding protein 2 (IGFBP2) promotes GBM cell migration and invasion, and contributes to glioma progression and cancer recurrence and poor survival in GBM. However, whether IGFBP2 can induce immunosuppression in GBM was not reported yet. Thus, the study applied a syngeneic mouse GBM model, human GBM samples, and cancer-immune cell co-culture experiments to investigate the effect of IGFBP2 on GBM exposed immune cells and its association with the mesenchymal induction. We found that IGFBP2 promoted the mesenchymal feature of GBM cells. The inhibition of IGFBP2 relieved immunosuppression by increasing CD8+ T and CD19+ B cells and decreasing CD163+ M2 macrophages. Further, the IGFBP2-promoted immunosuppression was associated with its induction of the mesenchymal feature of GBM cells and the inhibitory phosphorylated FcγRIIB of GBM exposed immune cells. Blocking IGFBP2 suppressed tumor growth and improved survival of tumor bearing mice in the mouse GBM model. These findings support the notion that targeting the IGFBP2 may present an effective immunotherapeutic strategy for mesenchymal GBMs.
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Affiliation(s)
- Yunmian Liu
- Center for Brain Disorders Research, Capital Medical University, Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Beijing, People's Republic of China
| | - Chunyan Song
- Center for Brain Disorders Research, Capital Medical University, Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Beijing, People's Republic of China
| | - Faping Shen
- Center for Brain Disorders Research, Capital Medical University, Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Beijing, People's Republic of China
| | - Jing Zhang
- Institute for Cancer Genetics, Irving Cancer Research Center, Columbia University, New York, United States of America
| | - Sonya Wei Song
- Center for Brain Disorders Research, Capital Medical University, Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Beijing, People's Republic of China
- * E-mail:
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Song Q, Pang H, Qi L, Liang C, Wang T, Wang W, Li R. Low microRNA-622 expression predicts poor prognosis and is associated with ZEB2 in glioma. Onco Targets Ther 2019; 12:7387-7397. [PMID: 31686846 PMCID: PMC6752038 DOI: 10.2147/ott.s218161] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/15/2019] [Indexed: 02/04/2023] Open
Abstract
Background MicroRNAs have been recently reported to play an important role in tumorigenesis and progression in several forms of tumors. Previous studies have shown that microRNA-622 (miR-622) was associated with glioma proliferation and invasion. However, the clinical significance of miR-622 in glioma has not been elucidated. The aim of our study was to investigate the clinical values of miR-622, as well as investigate the potential molecular mechanisms in glioma. Materials and methods qRT-PCR and Western blot analysis were used to analyze the expression of miR-622 and ZEB2, respectively. Kaplan–Meier analysis and Cox’s proportional hazards model were used in survival analysis. MTT assay, wound healing assay, transwell assay and flow cytometry analysis were carried out to detect the impact of miR-622 on glioma cell proliferation, migration, invasion and apoptosis. Results Our result indicated that miR-622 expression was greatly decreased in glioma tissues and cell lines and the downregulation of miR-622 was significantly associated with the advanced pathological grade and low Karnofsky performance score of glioma. In addition, Kaplan–Meier curves with log-rank analysis revealed a close correlation between downregulation of miR-622 expression and low overall survival rate in glioma patients. Furthermore, Cox regression analysis demonstrated that downregulated miR-622 could be considered as an independent poor prognostic indicator in glioma patients. Finally, our findings demonstrated that miR-622 overexpression remarkably suppressed glioma cell proliferation, migration and invasion, while facilitated apoptosis by suppressing ZEB2 in vitro. Conclusion Our study suggested that miR-622 may be identified as a valuable prognostic biomarker and a promising therapeutic target for glioma patients.
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Affiliation(s)
- Qian Song
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Honggang Pang
- Department of Peripheral Vascular Disease, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Lei Qi
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Chen Liang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Tuo Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Wei Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
| | - Ruichun Li
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
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Expanding the scope of candidate prognostic marker IGFBP2 in glioblastoma. Biosci Rep 2019; 39:BSR20190770. [PMID: 31296788 PMCID: PMC6639463 DOI: 10.1042/bsr20190770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/10/2019] [Accepted: 07/09/2019] [Indexed: 02/06/2023] Open
Abstract
Glioblastoma is the most common malignant brain tumor in adults. Unfortunately, it has a very poor prognosis and no cure. In a recent paper by Yuan et al. (Bioscience Reports (2019), DOI:10.1042/BSR20190045) RNAscope was used to detect insulin-like growth factor binding protein 2 (IGFBP2) mRNA in glioblastoma biopsies. The study revealed that patients with high levels of IGFBP2 mRNA had shorter survival and that IGFBP2 transcript level was an independent prognostic factor. It is also of value to determine the prognostic effect of IGFBP2 on established biomarkers such as isocitrate dehydrogenase (IDH1) mutations or telomerase reverse transcriptase (TERT) promoter mutation. In the present study, the combination of having a TERT promoter mutation, and at the same time a high level of IGFBP2 mRNA, was associated with very poor survival rates. It was concluded that IGFBP2 predicts the survival of the patients with TERT promoter mutation. This finding may have important implications for glioblastoma prognosis. IGFBP2 re-emerges as a candidate biomarker and potential therapeutic target in glioma. Further research into its functional roles during glioma progression may provide additional insights into this deadly disease.
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Martin A, Venara M, Mathó C, Olea FD, Fernández MC, Pennisi PA. Fibroblast deficiency of insulin-like growth factor 1 receptor type 1 (IGF1R) impairs initial steps of murine pheochromocytoma development. Biochimie 2019; 163:108-116. [PMID: 31185266 DOI: 10.1016/j.biochi.2019.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 06/05/2019] [Indexed: 01/26/2023]
Abstract
Insulin-like growth factor 1 (IGF1) has a critical role in maintaining tumor phenotype and survival of already transformed murine pheochromocytoma (pheo) cells (MPC4/30) and it is required for the initial establishment of these tumors. However, the role of local IGF1/IGF1R system in tumor microenvironment has not been fully understood. In vivo, by subcutaneous injection of pheo cells in heterozygous IGF1R knockout mice (L/n), we found that the time of noticeable tumor appearance was delayed, and incidence was decreased in L/n group compared to control (L/L) mice. Once established, tumor proliferation, vascularization or growth rate did not differ between groups. In vitro, fibroblast from L/n and L/L mice were cultured to generate conditioned media (CM) and differential matrixes on which pheo cells were seeded. Proliferation rate was higher when pheo cells were cultured with CM, or in differential matrix generated by L/L murine fibroblasts. A diminished fibronectin (FN) expression and secretion from L/n fibroblast was associated with decreased expression of integrin subunits in tumor cells. Also, soluble factors as IGF1 and insulin-like growth factor binding protein 2 (IGFBP2) were reduced. Our data suggest that IGF1 signaling through IGF1R may contribute to tumor cells anchorage and survival by interaction with both matrix and soluble factors produced by tumor microenvironment fibroblasts.
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Affiliation(s)
- Ayelen Martin
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Marcela Venara
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Cecilia Mathó
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Fernanda D Olea
- Instituto de Medicina Traslacional, Transplante y Bioingeniería IMETTYB- CONICET- Universidad Favaloro, Solis 453, Ciudad Autónoma de Buenos Aires, C1078AAH, Argentina
| | - María Celia Fernández
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina
| | - Patricia A Pennisi
- Centro de Investigaciones Endocrinológicas Dr. César Bergadá, CEDIE, CONICET-FEI- División de Endocrinología, Hospital de Niños Dr. Ricardo Gutiérrez, Gallo 1330, Ciudad Autónoma de Buenos Aires, C1425EFD, Argentina.
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Yao X, Wang Y, Duan Y, Zhang Q, Li P, Jin R, Tao Y, Zhang W, Wang X, Jing C, Zhou X. IGFBP2 promotes salivary adenoid cystic carcinoma metastasis by activating the NF-κB/ZEB1 signaling pathway. Cancer Lett 2018; 432:38-46. [PMID: 29885520 DOI: 10.1016/j.canlet.2018.06.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/11/2018] [Accepted: 06/01/2018] [Indexed: 12/24/2022]
Abstract
Metastasis is a major cause of poor prognosis in patients suffered with salivary adenoid cystic carcinoma (SACC), in which many factors are implicated. In this study, we identified that IGFBP2, overexpressed in SACC, correlated positively with perineural invasion or metastasis and indicated worse outcome. Moreover, IGFBP2 overexpression could dramatically improve motility and invasion capacity of SACC cells in vitro. Mechanically, IGFBP2 enhanced expression of ZEB1 in a NF-κB (p65)-dependent manner and then promoted epithelial-mesenchymal transition (EMT) in SACC. In addition, IGFBP2 mutation in the nuclear localization signal could impede nuclear translocation of p65, lower ZEB1 expression, and abrogate the EMT process. In xenograft models, IGFBP2 overexpression promoted lung and liver metastases of SACC cells; while if nuclear IGFBP2 was reduced, the formation of metastases in lung and liver was weakened. Together, these results for the first time demonstrate that IGFBP2 plays an important role in invasion and metastasis of SACC through the NF-κB/ZEB1 signaling pathway and IGFBP2 may be a novel biomarker and target for SACC.
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Affiliation(s)
- Xiaofeng Yao
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Yu Wang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Yuansheng Duan
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Qiang Zhang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Ping Li
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Rui Jin
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Yingjie Tao
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Wenchao Zhang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Xudong Wang
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China.
| | - Chao Jing
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China.
| | - Xuan Zhou
- Department of Maxillofacial and Otorhinolaryngological Oncology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin 300060, China.
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Wiedmann MKH, Brunborg C, Di Ieva A, Lindemann K, Johannesen TB, Vatten L, Helseth E, Zwart JA. The impact of body mass index and height on the risk for glioblastoma and other glioma subgroups: a large prospective cohort study. Neuro Oncol 2018; 19:976-985. [PMID: 28040713 DOI: 10.1093/neuonc/now272] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Glioma comprises a heterogeneous group of mostly malignant brain tumors, whereof glioblastoma (GBM) represents the largest and most lethal subgroup. Body height and body mass index (BMI) are risk factors for other cancers, but no previous study has examined anthropometric data in relation to different glioma subgroups. Methods This prospective cohort study includes 1.8 million Norwegian women and men between ages 14 and 80 years at baseline. Body weight and height were measured, and incident cases of glioma were identified by linkage to the National Cancer Registry. Cox regression analyses were performed to evaluate risk for different glioma subgroups in relation to anthropometric measures. Results During 54 million person-years of follow-up, 4,382 gliomas were identified. Overweight and obesity were not associated with risk for any glioma subgroup. Height was positively associated with risk for GBM and all other gliomas (hazard ratio [HR] per 10 cm increase: 1.24; 95% confidence interval [CI], 1.17-1.31 and 1.18; 95% CI, 1.09-1.29) but not with the proxy for isocitrate dehydrogenase (IDH)-mutant glioma (HR, 1.09; 95% CI, 0.98-1.21). In further subgroup analyses, the effect of height on glioma risk varied significantly with positive associations for oligoastrocytoma (HR, 1.74; 95% CI, 1.20-2.53) and malignant glioma not otherwise specified (NOS) (HR, 1.42; 95% CI, 1.16-1.76, but not with diffuse astrocytoma (WHO grades II and III) or oligodendroglioma. Conclusion This epidemiologic study consolidates height as a risk factor for GBM and other gliomas. It further indicates that this association is not universal for gliomas but may differ between different glioma subgroups.
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Affiliation(s)
- Markus K H Wiedmann
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Cathrine Brunborg
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Antonio Di Ieva
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kristina Lindemann
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Tom B Johannesen
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lars Vatten
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Eirik Helseth
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - John A Zwart
- Department of Neurosurgery, Oslo University Hospital, Oslo, Norway; Oslo Centre for Biostatistics and Epidemiology, Research Support Services, Oslo University Hospital, Oslo, Norway; Neurosurgery Unit, Faculty of Medicine and Health Sciences, Macquarie University, Sydney,Australia; Crown Princess Mary Cancer Care Centre, Westmead Hospital, Sydney,Australia; NHMRC Clinical Trials Centre, Sydney,Australia; Department of Gynecological Cancer, Oslo University Hospital (Norwegian Radium Hospital), Oslo, Norway; The Cancer Registry of Norway, Oslo, Norway; Department of Public Health, Norwegian University of Science and Technology, Trondheim, Norway; FORMI and Department of Neurology, Oslo University Hospital (Ulleval),Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
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Cai J, Chen Q, Cui Y, Dong J, Chen M, Wu P, Jiang C. Immune heterogeneity and clinicopathologic characterization of IGFBP2 in 2447 glioma samples. Oncoimmunology 2018; 7:e1426516. [PMID: 29721393 DOI: 10.1080/2162402x.2018.1426516] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/04/2018] [Accepted: 01/07/2018] [Indexed: 02/08/2023] Open
Abstract
Glioblastoma is an immunosuppressive, deadly brain tumor. IGFBP2, a circulating biomarker for cancer diagnosis and a potential immunotherapeutic target, is attracting more and more attention from oncologists and clinicians. Thus, it is urgent to thoroughly investigate the immune biological process of IGFBP2 to understand tumor immune complexity and provide potential evidence for anti-IGFBP2 therapy. Through authoritative public databases, we enrolled a total of 2447 glioma samples with gene expression profiles. Then, the clinical characteristics and immunosuppressive status of IGFBP2 in the glioma samples were analyzed. Immunohistochemical staining detected the expression of immunosuppressive biomarkers. We found that IGFBP2 expression was upregulated in high-grade glioma and GBM and downregulated in IDH mutant glioma. Increased IGFBP2 accompanied PTEN loss and EGFR amplification. Bioinformatic analysis revealed that IGFBP2 is related to immunological processes. We further selected specific immunologic related gene sets and found IGFBP2 predominated immunosuppressive activities in GBM. Furthermore, we explored the relationship between IGFBP2 and genes that were well-characterized glioma-mediated immunosuppressive molecules to investigate the potential effect of IGFBP2. We discovered that IGFBP2 was correlated with CHI3L1, TNFRSF1A, LGALS1, TIMP1, VEGFA, ANXA1 and LGALS3, which were classic immunosuppressive biomarkers. Higher IGFBP2 expression predicted unfavorable survival for patients with GBM. Our findings implied that IGFBP2 is involved in immunosuppressive activities and is an independent unfavorable prognostic biomarker for patients with GBM. IGFBP2 is a potential immunotherapeutic target for GBM in future clinical trials.
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Affiliation(s)
- Jinquan Cai
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Qun Chen
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Yuqiong Cui
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Jiawei Dong
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Meng Chen
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Pengfei Wu
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
| | - Chuanlu Jiang
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,Neuroscience Institute, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China.,Chinese Glioma Cooperative Group (CGCG), Beijing, China
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Minchenko DO, Tsymbal DO, Yavorovsky OP, Solokha NV, Minchenko OH. Expression of genes encoding IGFBPs, SNARK, CD36, and PECAM1 in the liver of mice treated with chromium disilicide and titanium nitride nanoparticles. Endocr Regul 2017; 51:84-95. [PMID: 28609285 DOI: 10.1515/enr-2017-0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE The aim of the present study was to examine the effect of chromium disilicide and titanium nitride nanoparticles on the expression level of genes encoding important regulatory factors (IGFBP1, IGFBP2, IGFBP3, IGFBP4, IGFBP5, SNARK/NUAK2, CD36, and PECAM1/CD31) in mouse liver for evaluation of possible toxic effects of these nanoparticles. METHODS Male mice received 20 mg chromium disilicide nanoparticles (45 nm) and titanium nitride nanoparticles (20 nm) with food every working day for 2 months. The expression of IGFBP1, IGFBP2, IGFBP3, IGFBP4, IGFBP5, SNARK, CD36, and PECAM1 genes in mouse liver was studied by quantitative polymerase chain reaction. RESULTS Treatment of mice with chromium disilicide nanoparticles led to down-regulation of the expression of IGFBP2, IGFBP5, PECAM1, and SNARK genes in the liver in comparison with control mice, with more prominent changes for SNARK gene. At the same time, the expression of IGFBP3 and CD36 genes was increased in mouse liver upon treatment with chromium disilicide nanoparticles. We have also shown that treatment with titanium nitride nanoparticles resulted in down-regulation of the expression of IGFBP2 and SNARK genes in the liver with more prominent changes for SNARK gene. At the same time, the expression of IGFBP3, IGFBP4, and CD36 genes was increased in the liver of mice treated with titanium nitride nanoparticles. Furthermore, the effect of chromium disilicide nanoparticles on IGFBP2 and CD36 genes expression was significantly stronger as compared to titanium nitride nanoparticles. CONCLUSIONS The results of this study demonstrate that chromium disilicide and titanium nitride nanoparticles have variable effects on the expression of IGFBP2, IGFBP3, IGFBP4, IGFBP5, SNARK, CD36, and PECAM1 genes in mouse liver, which may reflect the genotoxic activities of the studied nanoparticles.
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Peng T, Zhou L, Qi H, Wang G, Luan Y, Zuo L. MiR-592 functions as a tumor suppressor in glioma by targeting IGFBP2. Tumour Biol 2017; 39:1010428317719273. [PMID: 28718372 DOI: 10.1177/1010428317719273] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
A growing body of evidence suggests that microRNA-592 is involved in tumor initiation and development in several types of human cancers. However, the biological functions and molecular mechanism of microRNA-592 in glioma remain unclear. In this study, we explored the potential role of microRNA-592 in glioma as well as the possible molecular mechanisms. Our results proved that microRNA-592 expression was significantly downregulated in glioma tissues and cell lines (p < 0.01). Functional assays revealed that overexpression of microRNA-592 dramatically reduced the cell proliferation, migration, and invasion and induced cell arrest at G1/G0 phase in vitro. Mechanistic investigations defined insulin-like growth factor binding protein 2 as a direct and functional downstream target of microRNA-592, which was involved in the microRNA-592-mediated tumor-suppressive effects in glioma cells. Moreover, the in vivo study showed that microRNA-592 overexpression produced the smaller tumor volume and weight in nude mice. In summary, these results elucidated the function of microRNA-592 in glioma progression and suggested a promising application of it in glioma treatment.
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Affiliation(s)
- Tao Peng
- 1 Department of Neurosurgery, The First Hospital of Jilin University, Changchun, P.R. China
| | - Lixiang Zhou
- 1 Department of Neurosurgery, The First Hospital of Jilin University, Changchun, P.R. China
| | - Hui Qi
- 2 Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Guangming Wang
- 1 Department of Neurosurgery, The First Hospital of Jilin University, Changchun, P.R. China
| | - Yongxin Luan
- 1 Department of Neurosurgery, The First Hospital of Jilin University, Changchun, P.R. China
| | - Ling Zuo
- 2 Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, P.R. China
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Zhao J, Ma H, Wu L, Cao L, Yang Q, Dong H, Wang Z, Ma J, Li Z. The influence of simulated microgravity on proliferation and apoptosis in U251 glioma cells. In Vitro Cell Dev Biol Anim 2017; 53:744-751. [PMID: 28707224 DOI: 10.1007/s11626-017-0178-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 06/07/2017] [Indexed: 12/18/2022]
Abstract
Several studies have indicated that microgravity can influence cellular progression, proliferation, and apoptosis in tumor cell lines. In this study, we observed that simulated microgravity inhibited proliferation and induced apoptosis in U251 malignant glioma (U251MG) cells. Furthermore, expression of the apoptosis-associated proteins, p21 and insulin-like growth factor binding protein-2 (IGFBP-2), was upregulated and downregulated, respectively, following exposure to simulated microgravity. These findings indicate that simulated microgravity inhibits proliferation while inducing apoptosis of U251MG cells. The associated effects appear to be mediated by inhibition of IGFBP-2 expression and stimulation of p21 expression. This suggests that simulated microgravity might represent a promising method to discover new targets for glioma therapeutic strategy.
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Affiliation(s)
- Jiao Zhao
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - He Ma
- Department of Histology and Embryology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Leitao Wu
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Liang Cao
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Qianqian Yang
- Department of Histology and Embryology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Haijun Dong
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zongren Wang
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jing Ma
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Zhen Li
- Department of Histology and Embryology, Fourth Military Medical University, Xi'an, Shaanxi, China.
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Preoperative serum levels of insulin-like growth factor-binding protein 2 predict prognosis of gastric cancer patients. Oncotarget 2017; 8:10994-11003. [PMID: 28036255 PMCID: PMC5355240 DOI: 10.18632/oncotarget.14202] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 12/20/2016] [Indexed: 01/26/2023] Open
Abstract
It has been reported that serum insulin-like growth factor-binding protein 2 (IGFBP2) levels are elevated in various types of cancers. However, the clinicopathologic and prognostic implications of circulating IGFBP2 have never been investigated in gastric cancer. We tested IGFBP2 levels in the sera of 118 gastric cancer patients and 34 healthy controls using enzyme-linked immunosorbent assay (ELISA). The mean serum IGFBP2 level was significantly elevated in the gastric cancer patients compared to controls (805.23 ± 590.56 ng/ml vs. 459.61 ± 277.01 ng/ml; P < 0.001). Serum IGFBP2 levels were significantly higher in larger (> 6 cm) tumors (956.8 ± 734.0 ng/ml vs. 548.6 ± 364.0 ng/ml; P = 0.007) and in higher (T3/4) T stages (854.8 ± 621.4 ng/ml vs. 546.5 ± 315.1 ng/ml; P = 0.037). Multivariate Cox analysis showed that higher serum IGFBP2 level (> 400.01 ng/ml) was an independent prognostic factor predicting worse overall survival in patients with gastric cancer (hazard ratio (HR): 3.749, P = 0.034). When we divided patients into four groups based on blood IGFBP2 levels, survival was stratified. The HRs for death in the 3rd and 4th quartiles of serum IGFBP2 levels in comparison to that in the 1st quartile were 2.527 (P = 0.043) and 3.092 (P = 0.012). In conclusion, circulating IGFBP2 has potential as a biomarker predicting prognosis for gastric cancer patients.
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The microRNA-302b-inhibited insulin-like growth factor-binding protein 2 signaling pathway induces glioma cell apoptosis by targeting nuclear factor IA. PLoS One 2017; 12:e0173890. [PMID: 28323865 PMCID: PMC5360322 DOI: 10.1371/journal.pone.0173890] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 02/28/2017] [Indexed: 02/02/2023] Open
Abstract
MicroRNAs are small noncoding RNAs that post-transcriptionally control the expression of genes involved in glioblastoma multiforme (GBM) development. Although miR-302b functions as a tumor suppressor, its role in GBM is still unclear. Therefore, this study comprehensively explored the roles of miR-302b-mediated gene networks in GBM cell death. We found that miR-302b levels were significantly higher in primary astrocytes than in GBM cell lines. miR-302b overexpression dose dependently reduced U87-MG cell viability and induced apoptosis through caspase-3 activation and poly(ADP ribose) polymerase degradation. A transcriptome microarray revealed 150 downregulated genes and 380 upregulated genes in miR-302b-overexpressing cells. Nuclear factor IA (NFIA), higher levels of which were significantly related to poor survival, was identified as a direct target gene of miR-302b and was involved in miR-302b-induced glioma cell death. Higher NFIA levels were observed in GBM cell lines and human tumor sections compared with astrocytes and non-tumor tissues, respectively. NFIA knockdown significantly enhanced apoptosis. We found high levels of insulin-like growth factor-binding protein 2 (IGFBP2), another miR-302b-downregulated gene, in patients with poor survival. We verified that NFIA binds to the IGFBP2 promoter and transcriptionally enhances IGFBP2 expression levels. We identified that NFIA-mediated IGFBP2 signaling pathways are involved in miR-302b-induced glioma cell death. The identification of a regulatory loop whereby miR-302b inhibits NFIA, leading to a decrease in expression of IGFBP-2, may provide novel directions for developing therapies to target glioblastoma tumorigenesis.
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Abstract
The last two years of insulin-like growth factor (IGF) research has yielded a vast literature highlighting the central role IGFs factors play in processes such as development, growth, aging and neurological function. It also provides our latest understanding of how IGF system perturbation is linked to diseases including growth deficiency, cancer, and neurological and cardiovascular diseases. A snapshot of the highlights is presented in this review, focussing on the topics of IGFs and growth, comparative and structural biology to understand insulin-like peptide function, IGFs and cancer, and IGFs and neurological function. New revelations in the IGF field include the unexpected discovery that the gut microbiome has a remarkable influence on the GH/IGF axis to influence growth, that the insulin of cone snails provides novel insight into the mechanism of receptor binding, and that macrophages in the tumour microenvironment can provide IGF-I to promote drug resistance. These advances and many others provide the exciting basis for future development of disease treatments and for biomarkers of disease.
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Affiliation(s)
- Briony E Forbes
- Department of Medical Biochemistry, School of Medicine, Flinders University of South Australia, Bedford Park 5042, South Australia, Australia.
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