1
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Yao Y, Yao QY, Xue JS, Tian XY, An QM, Cui LX, Xu C, Su H, Yang L, Feng YY, Hao CY, Zhou TY. Dexamethasone inhibits pancreatic tumor growth in preclinical models: Involvement of activating glucocorticoid receptor. Toxicol Appl Pharmacol 2020; 401:115118. [PMID: 32619553 DOI: 10.1016/j.taap.2020.115118] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/21/2020] [Accepted: 06/28/2020] [Indexed: 01/07/2023]
Abstract
Glucocorticoid receptor (GR) modulates extensive biological and pathological processes including tumor progression through diverse mechanisms. The regulatory effects of dexamethasone (DEX), a synthetic glucocorticoid, as well as its interaction with GR have been recognized beyond hematologic cancers. In the present study, we investigated the anti-cancer efficacy of DEX and the correlation with GR in pancreatic cancer, a most aggressive malignancy threatening human health. The differential levels of GR expression were examined in two human pancreatic cancer cell lines, PANC-1 and SW1990, as well as in xenografts and patient tumor tissues. DEX significantly inhibited colony formation, migration, and tumor growth of PANC-1 cells expressing abundant GR. The underlying mechanisms involved suppression of nuclear factor κB (NF-κB) phosphorylation and down-regulation of epithelial-to-mesenchymal transition (EMT), interleukin 6 (IL-6) and vascular endothelial growth factor (VEGF). The anti-cancer effects of DEX were partially reversed by GR silencing or combinational administration of GR antagonist, RU486. The dose-dependent efficacy of DEX in tumor growth inhibition was also demonstrated in a GR-positive patient-derived xenograft model along with safety in mice. DEX was less potent, however, in SW1990 cells with poor GR expression. Our findings suggest that DEX effectively inhibits pancreatic tumor growth partially through GR activation. The potential correlation between GR expression and anti-cancer efficacy of DEX may have some clinical implications.
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Affiliation(s)
- Ye Yao
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qing-Yu Yao
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jun-Sheng Xue
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiu-Yun Tian
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Qi-Ming An
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Li-Xuan Cui
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Chang Xu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Hong Su
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Liang Yang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yao-Yao Feng
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Chun-Yi Hao
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital & Institute, Beijing 100142, China.
| | - Tian-Yan Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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2
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Konno M, Matsui H, Koseki J, Asai A, Kano Y, Kawamoto K, Nishida N, Sakai D, Kudo T, Satoh T, Doki Y, Mori M, Ishii H. Computational trans-omics approach characterised methylomic and transcriptomic involvements and identified novel therapeutic targets for chemoresistance in gastrointestinal cancer stem cells. Sci Rep 2018; 8:899. [PMID: 29343747 PMCID: PMC5772492 DOI: 10.1038/s41598-018-19284-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 12/27/2017] [Indexed: 12/13/2022] Open
Abstract
We investigated the relationship between methylomic [5-methylation on deoxycytosine to form 5-methylcytosine (5mC)] and transcriptomic information in response to chemotherapeutic 5-fluorouracil (5-FU) exposure and cisplatin (CDDP) administration using the ornithine decarboxylase (ODC) degron-positive cancer stem cell model of gastrointestinal tumour. The quantification of 5mC methylation revealed various alterations in the size distribution and intensity of genomic loci for each patient. To summarise these alterations, we transformed all large volume data into a smooth function and treated the area as a representative value of 5mC methylation. The present computational approach made the methylomic data more accessible to each transcriptional unit and allowed to identify candidate genes, including the tumour necrosis factor receptor-associated factor 4 (TRAF4), as novel therapeutic targets with a strong response to anti-tumour agents, such as 5-FU and CDDP, and whose significance has been confirmed in a mouse model in vivo. The present study showed that 5mC methylation levels are inversely correlated with gene expression in a chemotherapy-resistant stem cell model of gastrointestinal cancer. This mathematical method can be used to simultaneously quantify and identify chemoresistant potential targets in gastrointestinal cancer stem cells.
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Affiliation(s)
- Masamitsu Konno
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan.,Department of Medical Data Science, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Hidetoshi Matsui
- Faculty of Data Science, Shiga University, Shiga, 522-8522, Japan
| | - Jun Koseki
- Department of Medical Data Science, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Ayumu Asai
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan.,Department of Medical Data Science, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Yoshihiro Kano
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan.,Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Koichi Kawamoto
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Naohiro Nishida
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Daisuke Sakai
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan
| | - Toshihiro Kudo
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan
| | - Taroh Satoh
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan.
| | - Masaki Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan.
| | - Hideshi Ishii
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Osaka, 565-0871, Japan. .,Department of Medical Data Science, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan.
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3
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Zhang W, Sun Y, Liu L, Li Z. Prognostic Significance of TNFR-Associated Factor 1 and 2 (TRAF1 and TRAF2) in Glioblastoma. Med Sci Monit 2017; 23:4506-4512. [PMID: 28926524 PMCID: PMC5616136 DOI: 10.12659/msm.903397] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background TNFR-associated factor 1 (TRAF1) and TRAF2 have been demonstrated to inhibit apoptosis and promote cell survival in glioblastoma (GBM) cells with experiments in vitro. However, their clinical and prognostic significance have not been elucidated. Material/Methods In our study, we for the first time investigated the expression of TRAF1 and TRAF2 in 105 GBM tissues. Furthermore, we evaluated their clinical significance, including their association with clinicopathologic factors and prognostic value. The association with clinicopathologic factors was assessed by chi-square test. The relation of TRAF1/2 expression to survival rate was assessed by Kaplan-Meier method and Cox-regression model. Results We demonstrated that TRAF1 expression had no significant prognostic value for GBM. On the contrary, high expression of TRAF2 can predict poorer prognosis of GBM and was identified as an independent biomarker in GBM prognosis. Conclusions High expression of TRAF2 was identified as an independent biomarker in GBM prognosis, indicating TRAF2 as a novel drug target in GBM treatment.
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Affiliation(s)
- Wenqing Zhang
- Department of Geriatrics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Ying Sun
- Department of Neurology, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Lei Liu
- Department of Geriatrics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Zongpeng Li
- Department of Nursing, Linyi People's Hospital, Linyi, Shandong, China (mainland)
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4
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Voigt A, Nowick K, Almaas E. A composite network of conserved and tissue specific gene interactions reveals possible genetic interactions in glioma. PLoS Comput Biol 2017; 13:e1005739. [PMID: 28957313 PMCID: PMC5634634 DOI: 10.1371/journal.pcbi.1005739] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 10/10/2017] [Accepted: 08/24/2017] [Indexed: 02/08/2023] Open
Abstract
Differential co-expression network analyses have recently become an important step in the investigation of cellular differentiation and dysfunctional gene-regulation in cell and tissue disease-states. The resulting networks have been analyzed to identify and understand pathways associated with disorders, or to infer molecular interactions. However, existing methods for differential co-expression network analysis are unable to distinguish between various forms of differential co-expression. To close this gap, here we define the three different kinds (conserved, specific, and differentiated) of differential co-expression and present a systematic framework, CSD, for differential co-expression network analysis that incorporates these interactions on an equal footing. In addition, our method includes a subsampling strategy to estimate the variance of co-expressions. Our framework is applicable to a wide variety of cases, such as the study of differential co-expression networks between healthy and disease states, before and after treatments, or between species. Applying the CSD approach to a published gene-expression data set of cerebral cortex and basal ganglia samples from healthy individuals, we find that the resulting CSD network is enriched in genes associated with cognitive function, signaling pathways involving compounds with well-known roles in the central nervous system, as well as certain neurological diseases. From the CSD analysis, we identify a set of prominent hubs of differential co-expression, whose neighborhood contains a substantial number of genes associated with glioblastoma. The resulting gene-sets identified by our CSD analysis also contain many genes that so far have not been recognized as having a role in glioblastoma, but are good candidates for further studies. CSD may thus aid in hypothesis-generation for functional disease-associations.
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Affiliation(s)
- André Voigt
- Network Systems Biology Group, Department of Biotechnology, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
| | - Katja Nowick
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig, Germany
- Bioinformatics, Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- Human Biology, Institute for Biology, Free University Berlin, Berlin, Germany
| | - Eivind Almaas
- Network Systems Biology Group, Department of Biotechnology, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
- K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and General Practice, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
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5
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The Process and Regulatory Components of Inflammation in Brain Oncogenesis. Biomolecules 2017; 7:biom7020034. [PMID: 28346397 PMCID: PMC5485723 DOI: 10.3390/biom7020034] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/09/2017] [Accepted: 03/22/2017] [Indexed: 12/17/2022] Open
Abstract
Central nervous system tumors comprising the primary cancers and brain metastases remain the most lethal neoplasms and challenging to treat. Substantial evidence points to a paramount role for inflammation in the pathology leading to gliomagenesis, malignant progression and tumor aggressiveness in the central nervous system (CNS) microenvironment. This review summarizes the salient contributions of oxidative stress, interleukins, tumor necrosis factor-α(TNF-α), cyclooxygenases, and transcription factors such as signal transducer and activator of transcription 3 (STAT3) and nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) and the associated cross-talks to the inflammatory signaling in CNS cancers. The roles of reactive astrocytes, tumor associated microglia and macrophages, metabolic alterations, microsatellite instability, O6-methylguanine DNA methyltransferase (MGMT) DNA repair and epigenetic alterations mediated by the isocitrate dehydrogenase 1 (IDH1) mutations have been discussed. The inflammatory pathways with relevance to the brain cancer treatments have been highlighted.
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6
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Identification of novel candidate drivers connecting different dysfunctional levels for lung adenocarcinoma using protein-protein interactions and a shortest path approach. Sci Rep 2016; 6:29849. [PMID: 27412431 PMCID: PMC4944139 DOI: 10.1038/srep29849] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 06/24/2016] [Indexed: 12/21/2022] Open
Abstract
Tumors are formed by the abnormal proliferation of somatic cells with disordered growth regulation under the influence of tumorigenic factors. Recently, the theory of “cancer drivers” connects tumor initiation with several specific mutations in the so-called cancer driver genes. According to the differentiation of four basic levels between tumor and adjacent normal tissues, the cancer drivers can be divided into the following: (1) Methylation level, (2) microRNA level, (3) mutation level, and (4) mRNA level. In this study, a computational method is proposed to identify novel lung adenocarcinoma drivers based on dysfunctional genes on the methylation, microRNA, mutation and mRNA levels. First, a large network was constructed using protein-protein interactions. Next, we searched all of the shortest paths connecting dysfunctional genes on different levels and extracted new candidate genes lying on these paths. Finally, the obtained candidate genes were filtered by a permutation test and an additional strict selection procedure involving a betweenness ratio and an interaction score. Several candidate genes remained, which are deemed to be related to two different levels of cancer. The analyses confirmed our assertions that some have the potential to contribute to the tumorigenesis process on multiple levels.
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7
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Raizer JJ, Chandler JP, Ferrarese R, Grimm SA, Levy RM, Muro K, Rosenow J, Helenowski I, Rademaker A, Paton M, Bredel M. A phase II trial evaluating the effects and intra-tumoral penetration of bortezomib in patients with recurrent malignant gliomas. J Neurooncol 2016; 129:139-46. [PMID: 27300524 DOI: 10.1007/s11060-016-2156-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 06/01/2016] [Indexed: 12/23/2022]
Abstract
One resistance mechanism in malignant gliomas (MG) involves nuclear factor-κB (NF-κB) activation. Bortezomib prevents proteasomal degradation of NF-κB inhibitor α (NFKBIA), an endogenous regulator of NF-κB signaling, thereby limiting the effects of NF-κB on tumor survival and resistance. A presurgical phase II trial of bortezomib in recurrent MG was performed to determine drug concentration in tumor tissue and effects on NFKBIA. Patients were enrolled after signing an IRB approved informed consent. Treatment was bortezomib 1.7 mg/m(2) IV on days 1, 4 and 8 and then surgery on day 8 or 9. Post-operatively, treatment was Temozolomide (TMZ) 75 mg/m(2) PO on days 1-7 and 14-21 and bortezomib 1.7 mg/m(2) on days 7 and 21 [1 cycle was (1) month]. Ten patients were enrolled (8 M and 2 F) with 9 having surgery. Median age and KPS were 50 (42-64) and 90 % (70-100). The median cycles post-operatively was 2 (0-4). The trial was stopped as no patient had a PFS-6. All patients are deceased. Paired plasma and tumor bortezomib concentration measurements revealed higher drug concentrations in tumor than in plasma; NFKBIA protein levels were similar in drug-treated vs. drug-naïve tumor specimens. Nuclear 20S proteasome was less in postoperative samples. Postoperative treatment with TMZ and bortezomib did not show clinical activity. Bortezomib appears to sequester in tumor but pharmacological effects on NFKBIA were not seen, possibly obscured due to downregulation of NFKBIA during tumor progression. Changes in nuclear 20S could be marker of bortezomib effect on tumor.
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Affiliation(s)
- Jeffrey J Raizer
- Department of Neurology, Northwestern University, Abbott Hall, Room 1123, 710 N. Lake Shore Dr., Chicago, IL, 60611, USA.
| | - James P Chandler
- Department of Neurosurgery, Northwestern University, Chicago, IL, USA
| | - Roberto Ferrarese
- Department of Neurosurgery, Neurocenter and Comprehensive Cancer Center, University of Freiburg, Freiburg, Germany
| | - Sean A Grimm
- Cadence Health Care-Central DuPage Hospital, Winfield, IL, USA
| | | | - Kenji Muro
- Illinois Masonic Hospital, Chicago, IL, USA
| | - Joshua Rosenow
- Department of Neurosurgery, Northwestern University, Chicago, IL, USA
| | - Irene Helenowski
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
| | - Alfred Rademaker
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA
| | - Martin Paton
- Millennium Pharmaceuticals, Inc, Cambridge, MA, UK
| | - Markus Bredel
- Department of Radiation Oncology and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
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8
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Kumar MD, Dravid A, Kumar A, Sen D. Gene therapy as a potential tool for treating neuroblastoma-a focused review. Cancer Gene Ther 2016; 23:115-24. [PMID: 27080224 DOI: 10.1038/cgt.2016.16] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/14/2016] [Accepted: 03/15/2016] [Indexed: 12/12/2022]
Abstract
Neuroblastoma, a solid tumor caused by rapid division of undifferentiated neuroblasts, is the most common childhood malignancy affecting children aged <5 years. Several approaches and strategies developed and tested to cure neuroblastoma have met with limited success due to different reasons. Many oncogenes are deregulated during the onset and development of neuroblastoma and thus offer an opportunity to circumvent this disease if the expression of these genes is restored to normalcy. Gene therapy is a powerful tool with the potential to inhibit the deleterious effects of oncogenes by inserting corrected/normal genes into the genome. Both viral and non-viral vector-based gene therapies have been developed and adopted to deliver the target genes into neuroblastoma cells. These attempts have given hope to bringing in a new regime of treatment against neuroblastoma. A few gene-therapy-based treatment strategies have been tested in limited clinical trials yielding some positive results. This mini review is an attempt to provide an overview of the available options of gene therapy to treat neuroblastoma.
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Affiliation(s)
- M D Kumar
- School of Biosciences and Technology, Vellore Institute of Technology University, Vellore, Tamil Nadu, India
| | - A Dravid
- School of Biosciences and Technology, Vellore Institute of Technology University, Vellore, Tamil Nadu, India
| | - A Kumar
- School of Biosciences and Technology, Vellore Institute of Technology University, Vellore, Tamil Nadu, India
| | - D Sen
- School of Biosciences and Technology, Vellore Institute of Technology University, Vellore, Tamil Nadu, India.,Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology University, Vellore, Tamil Nadu, India
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9
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Ensign SPF, Roos A, Mathews IT, Dhruv HD, Tuncali S, Sarkaria JN, Symons MH, Loftus JC, Berens ME, Tran NL. SGEF Is Regulated via TWEAK/Fn14/NF-κB Signaling and Promotes Survival by Modulation of the DNA Repair Response to Temozolomide. Mol Cancer Res 2016; 14:302-12. [PMID: 26764186 DOI: 10.1158/1541-7786.mcr-15-0183] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 12/09/2015] [Indexed: 12/11/2022]
Abstract
UNLABELLED Glioblastoma (GB) is the highest grade and most common form of primary adult brain tumors. Despite surgical removal followed by concomitant radiation and chemotherapy with the alkylating agent temozolomide, GB tumors develop treatment resistance and ultimately recur. Impaired response to treatment occurs rapidly, conferring a median survival of just fifteen months. Thus, it is necessary to identify the genetic and signaling mechanisms that promote tumor resistance to develop targeted therapies to combat this refractory disease. Previous observations indicated that SGEF (ARHGEF26), a RhoG-specific guanine nucleotide exchange factor (GEF), is overexpressed in GB tumors and plays a role in promoting TWEAK-Fn14-mediated glioma invasion. Here, further investigation revealed an important role for SGEF in glioma cell survival. SGEF expression is upregulated by TWEAK-Fn14 signaling via NF-κB activity while shRNA-mediated reduction of SGEF expression sensitizes glioma cells to temozolomide-induced apoptosis and suppresses colony formation following temozolomide treatment. Nuclear SGEF is activated following temozolomide exposure and complexes with the DNA damage repair (DDR) protein BRCA1. Moreover, BRCA1 phosphorylation in response to temozolomide treatment is hindered by SGEF knockdown. The role of SGEF in promoting chemotherapeutic resistance highlights a heretofore unappreciated driver, and suggests its candidacy for development of novel targeted therapeutics for temozolomide-refractory, invasive GB cells. IMPLICATION SGEF, as a dual process modulator of cell survival and invasion, represents a novel target for treatment refractory glioblastoma.
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Affiliation(s)
- Shannon P Fortin Ensign
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona. Cancer Biology Graduate Interdisciplinary Program, University of Arizona, Tucson, Arizona
| | - Alison Roos
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Ian T Mathews
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Harshil D Dhruv
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Serdar Tuncali
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | - Marc H Symons
- Center for Oncology and Cell Biology, The Feinstein Institute for Medical Research at North Shore-LIJ, Manhasset, New York
| | - Joseph C Loftus
- Department of Biochemistry and Molecular Biology, Mayo Clinic Arizona, Scottsdale, Arizona
| | - Michael E Berens
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Nhan L Tran
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona.
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10
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Abbasi A, Forsberg K, Bischof F. The role of the ubiquitin-editing enzyme A20 in diseases of the central nervous system and other pathological processes. Front Mol Neurosci 2015; 8:21. [PMID: 26124703 PMCID: PMC4466442 DOI: 10.3389/fnmol.2015.00021] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 05/24/2015] [Indexed: 11/28/2022] Open
Abstract
In recent years, the ubiquitin-editing enzyme A20 has been shown to control a large set of molecular pathways involved in the regulation of protective as well as self-directed immune responses. Here, we assess the current and putative roles of A20 in inflammatory, vascular and degenerative diseases of the central nervous system and explore future directions of research.
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Affiliation(s)
- Asghar Abbasi
- Department of Neuroimmunology, Hertie Institute for Clinical Brain Research and Center of Neurology, University Hospital Tübingen Tübingen, Germany
| | - Kirsi Forsberg
- Department of Neuroimmunology, Hertie Institute for Clinical Brain Research and Center of Neurology, University Hospital Tübingen Tübingen, Germany
| | - Felix Bischof
- Department of Neuroimmunology, Hertie Institute for Clinical Brain Research and Center of Neurology, University Hospital Tübingen Tübingen, Germany
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11
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Puliyappadamba VT, Hatanpaa KJ, Chakraborty S, Habib AA. The role of NF-κB in the pathogenesis of glioma. Mol Cell Oncol 2014; 1:e963478. [PMID: 27308348 PMCID: PMC4905061 DOI: 10.4161/23723548.2014.963478] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 08/04/2014] [Accepted: 08/12/2014] [Indexed: 12/11/2022]
Abstract
Activation of NF-κB affects multiple aspects of cancer biology including cell survival and resistance to treatment. Glioblastoma (GBM) is the most common primary malignant tumor of the brain in adults and is resistant to treatment. Recent studies have reported that NF-κB activation in GBM is widespread and have elucidated the underlying regulatory mechanisms. EGFR gene amplification and mutation are among the key genetic alterations in GBM, and aberrant EGFR signaling is a key activator of NF-κB in GBM. In this review we discuss the evidence for activation of NF-κB in GBM and the key signaling pathways involved. Substantial evidence suggests a role for NF-κB in the pathogenesis of GBM and its resistance to treatment, indicating that NF-κB pathways may be useful targets for treatment.
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Affiliation(s)
- Vineshkumar Thidil Puliyappadamba
- Department of Neurology and Neurotherapeutics; University of Texas Southwestern Medical Center, Dallas, TX 75235; Current address: Department of Radiation Oncology, University of Alabama, Birmingham, Birmingham, AL 35294
| | - Kimmo J Hatanpaa
- Pathology at the University of Texas Southwestern Medical Center ; Dallas TX 75390
| | - Sharmistha Chakraborty
- Department of Neurology and Neurotherapeutics; University of Texas Southwestern Medical Center, Dallas, TX 75235; Current address: Department of Radiation Oncology, Methodist Research Institute, Houston TX 77030
| | - Amyn A Habib
- Department of Neurology and Neurotherapeutics; University of Texas Southwestern Medical Center, Dallas, TX 75235; VA North Texas Health Care System; Dallas TX 75216
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12
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Munson JM, Fried L, Rowson SA, Bonner MY, Karumbaiah L, Diaz B, Courtneidge SA, Knaus UG, Brat DJ, Arbiser JL, Bellamkonda RV. Anti-invasive adjuvant therapy with imipramine blue enhances chemotherapeutic efficacy against glioma. Sci Transl Med 2012; 4:127ra36. [PMID: 22461640 DOI: 10.1126/scitranslmed.3003016] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The invasive nature of glioblastoma (GBM) represents a major clinical challenge contributing to poor outcomes. Invasion of GBM into healthy tissue restricts chemotherapeutic access and complicates surgical resection. Here, we test the hypothesis that an effective anti-invasive agent can "contain" GBM and increase the efficacy of chemotherapy. We report a new anti-invasive small molecule, Imipramine Blue (IB), which inhibits invasion of glioma in vitro when tested against several models. IB inhibits NADPH (reduced form of nicotinamide adenine dinucleotide phosphate) oxidase-mediated reactive oxygen species generation and alters expression of actin regulatory elements. In vivo, liposomal IB (nano-IB) halts invasion of glioma, leading to a more compact tumor in an aggressively invasive RT2 syngeneic astrocytoma rodent model. When nano-IB therapy was followed by liposomal doxorubicin (nano-DXR) chemotherapy, the combination therapy prolonged survival compared to nano-IB or nano-DXR alone. Our data demonstrate that nano-IB-mediated containment of diffuse glioma enhanced the efficacy of nano-DXR chemotherapy, demonstrating the promise of an anti-invasive compound as an adjuvant treatment for glioma.
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Affiliation(s)
- Jennifer M Munson
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Tao T, Cheng C, Ji Y, Xu G, Zhang J, Zhang L, Shen A. Numbl inhibits glioma cell migration and invasion by suppressing TRAF5-mediated NF-κB activation. Mol Biol Cell 2012; 23:2635-44. [PMID: 22593207 PMCID: PMC3395653 DOI: 10.1091/mbc.e11-09-0805] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Numblike, a negative regulator in glioma cell migration and invasion, was found to mediate nuclear factor kappa B activation by suppressing tumor necrosis factor receptor–associated factor 5. The Notch signaling regulator Numblike (Numbl) is expressed in the brain, but little is known regarding its role in the pathophysiology of glial cells. In this paper, we report that Numbl expression was down-regulated in high-grade human glioma tissue samples and glioblastoma cell lines. To investigate the role of Numbl in glioma migration and invasion, we generated human glioma cell lines in which Numbl was either overexpressed or depleted. Overexpression of Numbl suppressed, while elimination of Numbl promoted, the migration and invasion of glioma cells. Numbl inhibited glioma migration and invasion by dampening NF-κB activity. Furthermore, Numbl interacted directly with tumor necrosis factor receptor–associated factor 5 (TRAF5), which signals upstream and is required for the activation of NF-κB, and committed it to proteasomal degradation by promoting K48-linked polyubiquitination of TRAF5. In conclusion, our data suggest that Numbl negative regulates glioma cell migration and invasion by abrogating TRAF5-induced activation of NF-κB.
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Affiliation(s)
- Tao Tao
- Key Laboratory of Neuroregeneration of Jiangsu Province, Nantong University, Nantong, Jiangsu, People's Republic of China
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14
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Wang YY, Ye ZY, Zhao ZS, Tao HQ, Li SG. Systems biology approach to identification of biomarkers for metastatic progression in gastric cancer. J Cancer Res Clin Oncol 2011; 136:135-41. [PMID: 19649653 DOI: 10.1007/s00432-009-0644-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2009] [Accepted: 07/17/2009] [Indexed: 10/20/2022]
Abstract
PURPOSE Gastric cancer is usually diagnosed at later stages (stages III and IV) in China, and the overall 5-year survival rate is low at 40%. Metastases are responsible for the majority of cancer fatalities. The molecular mechanisms governing metastasis are poorly understood. METHODS We have analyzed gene expression data based on gene interaction networks and molecular pathways rather than separate genes utilizing hierarchical cluster analysis, Gene ontology analysis and pathway analysis. RESULTS We have analyzed gene expression data from advanced gastric cancer tissues, corresponding adjacent noncancerous gastric tissues and its peritonium metastasis. Our studies indicated that metastatic tumor was related to changes in apoptosis pathway and proteasome degradation pathway, TRAF2 and IRF3 are up-regulated in apoptosis pathway, NEDD4 and UBE1 are up-regulated in proteasome degradation pathway. CONCLUSION The advent of high-throughput investigation of gene using Microarray technology, a systems approach relying on groups of interacting genes is essential for understanding the processes of cancer. We have identified apoptosis pathway and proteasome degradation pathway associated with metastasis.
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Affiliation(s)
- Yuan-Yu Wang
- Department of Surgery, Zhejiang Provincial People's Hospital, 310014 Hangzhou, Zhejiang, People's Republic of China
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15
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Eisele G, Weller M. Targeting apoptosis pathways in glioblastoma. Cancer Lett 2011; 332:335-45. [PMID: 21269762 DOI: 10.1016/j.canlet.2010.12.012] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 12/12/2010] [Accepted: 12/14/2010] [Indexed: 01/14/2023]
Abstract
The treatment of glioblastoma remains a major challenge for clinicians since these highly aggressive brain tumors are relatively resistant towards radio- and chemotherapy. The pathways that control apoptosis are altered in glioblastoma cells leading to resistance towards apoptotic stimuli in general. In this review we describe the alterations affecting the p53 pathway, the BCL-2 protein family, the inhibitor of apoptosis proteins and several growth factor pathways involved in the regulation of programmed cell death and define possible targets for new therapies within these apoptotic pathways in glioblastomas. Moreover, we review strategies to target death receptor pathways, most notably to render the glioblastoma cells more susceptible towards this approach without enhancing toxicity in general. Most of the strategies targeting apoptosis in glioblastomas presented here are in a pre-clinical stage of development, however, they all share the ultimative goal to improve the outcome for glioblastoma patients.
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Affiliation(s)
- Günter Eisele
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, CH-8091 Zurich, Switzerland.
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16
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Role of inflammation and oxidative stress mediators in gliomas. Cancers (Basel) 2010; 2:693-712. [PMID: 24281089 PMCID: PMC3835099 DOI: 10.3390/cancers2020693] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Revised: 04/20/2010] [Accepted: 04/21/2010] [Indexed: 12/17/2022] Open
Abstract
Gliomas are the most common primary brain tumors of the central nervous system. Despite relevant progress in conventional treatments, the prognosis of such tumors remains almost invariably dismal. The genesis of gliomas is a complex, multistep process that includes cellular neoplastic transformation, resistance to apoptosis, loss of control of the cell cycle, angiogenesis, and the acquisition of invasive properties. Among a number of different biomolecular events, the existence of molecular connections between inflammation and oxidative stress pathways and the development of this cancer has been demonstrated. In particular, the tumor microenvironment, which is largely orchestrated by inflammatory molecules, is an indispensable participant in the neoplastic process, promoting proliferation, survival and migration of such tumors. Proinflammatory cytokines, such as tumor necrosis factor-alpha, interleukin-1beta, and interferon-gamma, as well as chemokines and prostaglandins, are synthesized by resident brain cells and lymphocytes invading the affected brain tissue. Key mediators of cancer progression include nuclear factor-kappaB, reactive oxygen and nitrogen species, and specific microRNAs. The collective activity of these mediators is largely responsible for a pro-tumorigenic response through changes in cell proliferation, cell death, cellular senescence, DNA mutation rates, DNA methylation and angiogenesis. We provide a general overview of the connection between specific inflammation and oxidative stress pathway molecules and gliomas. The elucidation of specific effects and interactions of these factors may provide the opportunity for the identification of new target molecules leading to improved diagnosis and treatment.
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Guo Q, Dong H, Liu X, Wang C, Liu N, Zhang J, Li B, Cao W, Ding T, Yang Z, Zhang X. A20 is overexpressed in glioma cells and may serve as a potential therapeutic target. Expert Opin Ther Targets 2009; 13:733-41. [PMID: 19492975 DOI: 10.1517/14728220903045018] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE A20 is a TNF-inducible primary response gene, which has been found to have antiapoptotic function in several cancer cells. This study investigates A20 expression in human glioma tissues and four glioma cell lines, and its effect on tumorigenesis of glioma cells and a mouse tumor model. METHODS Human glioma tissue samples and cells were subject to reverse transcription-PCR (RT-PCR), western blotting and immunohistochemistry. Glioma cells was tested by flow cytometry. A xenograft tumor model in mice was utilized to examine the knock-down effect of specific A20 siRNAs on tumorigenesis. RESULTS A20 was overexpressed in clinical glioma tissue samples (63.9%) and correlated with clinical staging. All four human glioma cell lines expressed A20, among which U87 displayed the strongest expression signals. Inhibiting A20 expression by siRNAs in vitro reduced the growth rates of glioma cells and resulted in G1/S arrest and increased apoptosis. In a mouse tumor model, local administration of siRNA significantly suppressed solid tumor growth. CONCLUSIONS A20 was overexpressed both in human glioma tissues and cell lines, and inhibiting A20 expression greatly slowed tumor cell growth in culture and in mice. These findings indicated that A20 is involved in tumorigenesis of human glioma, and may serve as a future therapeutic target.
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Affiliation(s)
- Qingdong Guo
- The Fourth Military Medical University, Xijing Hospital, Department of Neurosurgery, Xi'an 710032, China
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18
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Aggarwal BB, Gehlot P. Inflammation and cancer: how friendly is the relationship for cancer patients? Curr Opin Pharmacol 2009; 9:351-69. [PMID: 19665429 PMCID: PMC2730981 DOI: 10.1016/j.coph.2009.06.020] [Citation(s) in RCA: 265] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 06/22/2009] [Accepted: 06/23/2009] [Indexed: 02/03/2023]
Abstract
Evidence has emerged in the last two decades that at the molecular level most chronic diseases, including cancer, are caused by a dysregulated inflammatory response. The identification of transcription factors such as NF-kappaB, AP-1 and STAT3 and their gene products such as tumor necrosis factor, interleukin-1, interleukin-6, chemokines, cyclooxygenase-2, 5 lipooxygenase, matrix metalloproteases, and vascular endothelial growth factor, adhesion molecules and others have provided the molecular basis for the role of inflammation in cancer. These inflammatory pathways are activated by tobacco, stress, dietary agents, obesity, alcohol, infectious agents, irradiation, and environmental stimuli, which together account for as much as 95% of all cancers. These pathways have been implicated in transformation, survival, proliferation, invasion, angiogenesis, metastasis, chemoresistance, and radioresistance of cancer, so much so that survival and proliferation of most types of cancer stem cells themselves appear to be dependent on the activation of these inflammatory pathways. Most of this evidence, however, is from preclinical studies. Whether these pathways have any role in prevention, progression, diagnosis, prognosis, recurrence or treatment of cancer in patients, is the topic of discussion of this review. We present evidence that inhibitors of inflammatory biomarkers may have a role in both prevention and treatment of cancer.
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Park S, Hatanpaa KJ, Xie Y, Mickey BE, Madden CJ, Raisanen JM, Ramnarain DB, Xiao G, Saha D, Boothman DA, Zhao D, Bachoo RM, Pieper RO, Habib AA. The receptor interacting protein 1 inhibits p53 induction through NF-kappaB activation and confers a worse prognosis in glioblastoma. Cancer Res 2009; 69:2809-16. [PMID: 19339267 DOI: 10.1158/0008-5472.can-08-4079] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nuclear factor-kappaB (NF-kappaB) activation may play an important role in the pathogenesis of cancer and also in resistance to treatment. Inactivation of the p53 tumor suppressor is a key component of the multistep evolution of most cancers. Links between the NF-kappaB and p53 pathways are under intense investigation. In this study, we show that the receptor interacting protein 1 (RIP1), a central component of the NF-kappaB signaling network, negatively regulates p53 tumor suppressor signaling. Loss of RIP1 from cells results in augmented induction of p53 in response to DNA damage, whereas increased RIP1 level leads to a complete shutdown of DNA damage-induced p53 induction by enhancing levels of cellular mdm2. The key signal generated by RIP1 to up-regulate mdm2 and inhibit p53 is activation of NF-kappaB. The clinical implication of this finding is shown in glioblastoma, the most common primary malignant brain tumor in adults. We show that RIP1 is commonly overexpressed in glioblastoma, but not in grades II and III glioma, and increased expression of RIP1 confers a worse prognosis in glioblastoma. Importantly, RIP1 levels correlate strongly with mdm2 levels in glioblastoma. Our results show a key interaction between the NF-kappaB and p53 pathways that may have implications for the targeted treatment of glioblastoma.
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Affiliation(s)
- Seongmi Park
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, Texas 75390-8813, USA
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20
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Tsuboi Y, Kurimoto M, Nagai S, Hayakawa Y, Kamiyama H, Hayashi N, Kitajima I, Endo S. Induction of autophagic cell death and radiosensitization by the pharmacological inhibition of nuclear factor-kappa B activation in human glioma cell lines. J Neurosurg 2009; 110:594-604. [PMID: 19046042 DOI: 10.3171/2008.8.jns17648] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECT The intrinsic radioresistance of certain cancer cells may be closely associated with the constitutive activation of nuclear factor-kappa B (NF-kappaB) activity, which may lead to protection from apoptosis. Recently, nonapoptotic cell death, or autophagy, has been revealed as a novel response of cancer cells to ionizing radiation. In the present study, the authors analyzed the effect of pitavastatin as a potential inhibitor of NF-kappaB activation on the radiosensitivity of A172, U87, and U251 human glioma cell lines. METHODS The pharmacological inhibition of NF-kappaB activation was achieved using pitavastatin, an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase. Growth and radiosensitivity assays were performed using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Hoechst 33258 staining, supravital acridine orange staining, and electron microscopy were performed utilizing 3 glioma cell lines with or without pitavastatin pretreatment to identify apoptosis or autophagy after irradiation. RESULTS The growth of these 3 glioma cell lines was not significantly inhibited by pitavastatin at a concentration of up to 1 microM. Treatment with 0.1 microM of pitavastatin enhanced radiation-induced cell death in all glioma cell lines, with different sensitivity. Apoptosis did not occur in any pretreated or untreated (no pitavastatin) cell line following irradiation. Instead, autophagic cell changes were observed regardless of the radiosensitivity of the cell line. An inhibitor of autophagy, 3-methyladenine suppressed the cytotoxic effect of irradiation with pitavastatin, indicating that autophagy is a result of an antitumor mechanism. Using the most radiosensitive A172 cell line, the intracellular localization of p50, a representative subunit of NF-kappaB, was evaluated through immunoblotting and immunofluorescence studies. The NF-kappaB of A172 cells was immediately activated and translocated from the cytosol to the nucleus in response to irradiation. Pitavastatin inhibited this activation and translocation of NF-kappaB. CONCLUSIONS Autophagic cell death rather than apoptosis is a possible mechanism of radiation-induced and pitavastatin-enhanced cell damage, and radiosensitization by the pharmacological inhibition of NF-kappaB activation may be a novel therapeutic strategy for malignant gliomas.
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Affiliation(s)
- Yoshifumi Tsuboi
- Departments of Neurosurgery, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Japan
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21
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Chen SY, Takeuchi S, Urabe K, Hayashida S, Kido M, Tomoeda H, Uchi H, Dainichi T, Takahara M, Shibata S, Tu YT, Furue M, Moroi Y. Overexpression of phosphorylated-ATF2 and STAT3 in cutaneous angiosarcoma and pyogenic granuloma. J Cutan Pathol 2008; 35:722-30. [PMID: 18700251 DOI: 10.1111/j.1600-0560.2007.00887.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Activating transcription factor-2/Activator protein-1 (AP-1), Signal transducer and activator of transcription-3 and p53 are important regulators of cellular proliferation, apoptosis, differentiation in the pathogenesis of many human tumors, but the expression of phosphorylated (p)-activating transcription factor-2 (p-ATF2), phosphorylated (p)-signal transducer and activator of transcription-3 (p-STAT3) and p53 family (p63 and p73) has not been investigated in cutaneous angiosarcoma (CAS) and pyogenic granuloma (PG) so far. OBJECTIVES To investigate the expression of p-ATF2, p-STAT3 and p53 and its family in cutaneous vascular tumors (CAS and PG). METHODS Paraffin-embedded specimens of 14 CAS and 19 PG were subjected to immunohistochemical staining for p-ATF2, p-STAT3, p53, p63 and p73. RESULTS P-ATF2 was expressed in 13 out of 14 CAS and in all of 19 PG. P-STAT3 was expressed in all of 14 CAS and 19 PG. P53 was expressed in all of 14 CAS and 19 PG, while both p63 and p73 were negative in CAS and PG. The p-ATF2-, p-STAT3- and p53 expression (% positive cells) in CAS and PG were significantly higher than in normal dermal vessels, but none of these transcription factors distinguished malignant (CAS)- from benign (PG) vascular tumor. CONCLUSIONS The present study suggests that overexpression of p-ATF2, p-STAT3 and possibly p53, but not p63 or p73, may contribute to the tumorigenesis of cutaneous vascular tumors.
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Affiliation(s)
- Si-Yuan Chen
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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22
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Angileri FF, Aguennouz M, Conti A, La Torre D, Cardali S, Crupi R, Tomasello C, Germanò A, Vita G, Tomasello F. Nuclear factor-kappaB activation and differential expression of survivin and Bcl-2 in human grade 2-4 astrocytomas. Cancer 2008; 112:2258-66. [PMID: 18327814 DOI: 10.1002/cncr.23407] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Antiapoptotis resulting from hyperactivation of the transcription factor NF-kappaB has been described in several cancer types. It is triggered by the interaction of the tumor necrosis factor (TNF) with its receptors and recruitment of the intermediate factor TNF-receptor associated factor (TRAF) 2. The NF-kappaB transcriptional activity could amplify the expression of antiapoptotic genes. The authors investigated the activity of NF-kappaB, and the mRNA expression of TNFalpha, TNFalpha receptor, TRAF1, TRAF2, and TRAF-associated NF-kappaB activator (TANK), and the antiapoptotic genes Bcl-2, c-IAP 1 and 2, and Survivin in human astrocytic tumors. METHODS Eight low-grade astrocytomas (LGA), 10 anaplastic astrocytomas (AAs), 10 glioblastoma multiforme (GBM) samples were used; 4 samples of normal brain tissue were used as controls. The NF-kappaB activation was analyzed by electrophoretic mobility shift assay; TRAF1, TRAF2, TANK/I-TRAF, Bcl-2, c-IAP 1 and 2, and Survivin mRNA expressions were studied using real-time quantitative reverse-transcriptase polymerase chain reaction. RESULTS NF-kappaB hyperactivity was detected in tumor samples. mRNA of antiapoptotic genes, particularly BCL-2 and Survivin, was hyperexpressed in gliomas. Interestingly, BCL-2 was hyperexpressed in LGAs, whereas a very high level of Survivin featured high-grade gliomas. The differential expression of antiapoptotic genes yielded a tight clustering of all LGA and nearly all GBM samples in cluster analysis. CONCLUSIONS NF-kappaB and factors involved in its intracellular activation were up-regulated in gliomas. NF-kappaB-activated antiapoptotic genes were hyperexpressed in tumor samples, but showed a differential expression with higher levels of Bcl-2 in LGAs and higher levels of Survivin in GBMs.
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Affiliation(s)
- Filippo F Angileri
- Department of Neuroscience, University of Messina School of Medicine, Messina, Italy
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23
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Korkolopoulou P, Levidou G, Saetta AA, El-Habr E, Eftichiadis C, Demenagas P, Thymara I, Xiromeritis K, Boviatsis E, Thomas-Tsagli E, Panayotidis I, Patsouris E. Expression of nuclear factor-kappaB in human astrocytomas: relation to pI kappa Ba, vascular endothelial growth factor, Cox-2, microvascular characteristics, and survival. Hum Pathol 2008; 39:1143-52. [PMID: 18495209 DOI: 10.1016/j.humpath.2008.01.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2007] [Revised: 01/03/2008] [Accepted: 01/22/2008] [Indexed: 01/04/2023]
Abstract
Although NF-kappaB has been reported to be constitutively activated in various neoplasms, little information is available about its clinical significance in astrocytomas. In this study, we investigated the association of NF kappa B1/p50 and pI kappa Ba immunohistochemical expression with clinicopathologic features, vascular endothelial growth factor, Cox-2, and microvascular parameters in paraffin-embedded tissue from 82 patients with astrocytomas. pI kappa Ba expression was positively correlated with nuclear (P = .0010) and negatively with cytoplasmic (P = .0008) NF kappa B1/p50 expression. Nuclear NF kappa B1/p50 and pI kappa Ba expression increased with tumor grade (P = .0001 and P < .0001). Nuclear NF kappa B1/p50 was associated with vascular endothelial growth factor (P = .0079), Cox-2 (P = .0500), and total vascular surface area (P = .0430), although the latter was significant only in grades II and III. pI kappa Ba was also positively correlated with microvessel caliber (pI kappa Ba/area; P = .0087). Multivariate analysis selected NF kappa B/p50 expression as an independent prognosticator not only for the entire cohort (P = .0220), but also for grades II and III (P = .0029) and grade IV cases (P = .0310). Our results suggest that nuclear NF kappa B1/p50 expression is dictated by its interaction with I kappa Ba in astrocytomas and is associated with tumor grade and angiogenic factors, denoting the importance of nuclear NF kappa B/p50 expression in patients' prognosis.
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Affiliation(s)
- Penelope Korkolopoulou
- First Department of Pathology, Medical School, Laiko Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Buga AM, Sascau M, Pisoschi C, Herndon JG, Kessler C, Popa-Wagner A. The genomic response of the ipsilateral and contralateral cortex to stroke in aged rats. J Cell Mol Med 2008; 12:2731-53. [PMID: 18266980 PMCID: PMC3828887 DOI: 10.1111/j.1582-4934.2008.00252.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aged rats recover poorly after unilateral stroke, whereas young rats recover readily possibly with the help from the contralateral, healthy hemisphere. In this study we asked whether anomalous, age-related changes in the transcriptional activity in the brains of aged rats could be one underlying factor contributing to reduced functional recovery. We analysed gene expression in the periinfarct and contralateral areas of 3-month- and 18-month-old Sprague Dawley rats. Our experimental end-points were cDNA arrays containing genes related to hypoxia signalling, DNA damage and apoptosis, cellular response to injury, axonal damage and re-growth, cell lineage differentiation, dendritogenesis and neurogenesis. The major transcriptional events observed were: (i) Early up-regulation of DNA damage and down-regulation of anti-apoptosis-related genes in the periinfarct region of aged rats after stroke; (ii) Impaired neurogenesis in the periinfarct area, especially in aged rats; (iii) Impaired neurogenesis in the contralateral (unlesioned) hemisphere of both young and aged rats at all times after stroke and (iv) Marked up-regulation, in aged rats, of genes associated with inflammation and scar formation. These results were confirmed with quantitative real-time PCR. We conclude that reduced transcriptional activity in the healthy, contralateral hemisphere of aged rats in conjunction with an early up-regulation of DNA damage-related genes and pro-apoptotic genes and down-regulation of axono- and neurogenesis in the periinfarct area are likely to account for poor neurorehabilitation after stroke in old rats.
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Affiliation(s)
- A-M Buga
- Molecular Neurobiology Laboratory, Clinic of Neurology, University of Greifswald, Germany
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25
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Widera D, Kaus A, Kaltschmidt C, Kaltschmidt B. Neural stem cells, inflammation and NF-kappaB: basic principle of maintenance and repair or origin of brain tumours? J Cell Mol Med 2007; 12:459-70. [PMID: 18182066 PMCID: PMC3822535 DOI: 10.1111/j.1582-4934.2007.00208.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Several recent reports suggest that inflammatory signals play a decisive role in the self-renewal, migration and differentiation of multipotent neural stem cells (NSCs). NSCs are believed to be able to ameliorate the symptoms of several brain pathologies through proliferation, migration into the area of the lesion and either differentiation into the appropriate cell type or secretion of anti-inflammatory cytokines. Although NSCs have beneficial roles, current evidence indicates that brain tumours, such as astrogliomas or ependymomas are also caused by tumour-initiating cells with stem-like properties. However, little is known about the cellular and molecular processes potentially generating tumours from NSCs. Most pro-inflammatory conditions are considered to activate the transcription factor NF-kappaB in various cell types. Strong inductive effects of NF-kappaB on proliferation and migration of NSCs have been described. Moreover, NF-kappaB is constitutively active in most tumour cells described so far. Chronic inflammation is also known to initiate cancer. Thus, NF-kappaB might provide a novel mechanistic link between chronic inflammation, stem cells and cancer. This review discusses the apparently ambivalent role of NF-kappaB: physiological maintenance and repair of the brain via NSCs, and a potential role in tumour initiation. Furthermore, it reveals a possible mechanism of brain tumour formation based on inflammation and NF-kappaB activity in NSCs.
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Affiliation(s)
- D Widera
- Institut für Zellbiologie der Tiere, Fakultät für Biologie, Universität Bielefeld, Bielefeld, Germany
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26
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Conti A, Miscusi M, Cardali S, Germanò A, Suzuki H, Cuzzocrea S, Tomasello F. Nitric oxide in the injured spinal cord: synthases cross-talk, oxidative stress and inflammation. ACTA ACUST UNITED AC 2007; 54:205-18. [PMID: 17500094 DOI: 10.1016/j.brainresrev.2007.01.013] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) is a unique informational molecule involved in a variety of physiological processes in the central nervous system (SNS). It has been demonstrated that it can exert both protective and detrimental effects in several diseases states of the CNS, including spinal cord injury (SCI). The effects of NO on the spinal cord depend on several factors such as: concentration of produced NO, activity of different synthase isoforms, cellular source of production and time of release. Basically, it has been shown that low NO concentrations may play a role in physiologic processes, whereas large amounts of NO may be detrimental by increasing oxidative stress. However, this does not explain all the discrepancies evidenced studying the effects of NO in SCI models. The analysis of the different synthase isoforms, of their temporal profile of activation and cellular source has shed light on this topic. Two post-injury time intervals can be defined with reference to the NO production: immediately after injury and several hours-to-days later. The initial immediate peak of NO production after injury is due to the up-regulation of the neuronal NO synthase (nNOS) in resident spinal cord cells. The late peak is due primarily to the activity of inducible NOS (nNOS) produced by inflammatory infiltrating cells. High NO levels produced by up-regulated nNOS and iNOS are neurotoxic; the down-regulation of nNOS corresponds temporally to the expression of iNOS. On the bases of the evidence, therapeutic approaches should be aimed: (1) to reduce the NO-elicited damage by inhibition of specific synthases according to the temporal profile of activation; (2) by maintaining physiologic amount of NO to keep the induction of iNOS.
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Affiliation(s)
- Alfredo Conti
- Department of Neuroscience, University of Messina, Policlinico Universitario, Messina, Italy.
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27
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Mabrouk GM, Ali EMM, El-Rehany MA, El-Samoly HM. TGF-beta1, TNF-alpha and cytochrome c in human astrocytic tumors: a short-term follow up and correlation with survival. Clin Biochem 2006; 40:255-60. [PMID: 17070791 DOI: 10.1016/j.clinbiochem.2006.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 08/30/2006] [Accepted: 09/06/2006] [Indexed: 01/01/2023]
Abstract
OBJECTIVES To evaluate the association of signals of apoptosis namely, TGF-beta1, TNF-alpha and cytochrome c release in cytoplasm with survival rate to determine the potential use of such parameters as predictive markers for patients with astrocytomas. DESIGN AND METHODS We measured TGF-beta1, TNF-alpha and cytoplasmic cytochrome c in 30 astrocytic tumors Grade II, III and IV. RESULTS We found that TNF-alpha and cytochrome c release in Grade IV tends to be significantly lower than those in Grade II, whereas TGF-beta1 did not significantly change in the different grades. Patients with astrocytic tumors having elevated cytochrome c showed a better survival rate compared to those with less release. There is neither a correlation shown between TNF-alpha and cytochrome c release nor between TNF-alpha and patient survival. TGF-beta1 was positively correlated with cytochrome c release. Patients showing such correlation had increased survival rate over 18 months follow up period. CONCLUSION These data suggest that TGF-beta1 and cytochrome c may be useful prognostic markers that help patients' stratification and in adjusting the disciplines of therapy.
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Affiliation(s)
- Gamal M Mabrouk
- Oncology Diagnostic Unit, Department of Biochemistry, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
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Shi W, Li L, Shi X, Zheng F, Zeng J, Jiang X, Gong F, Zhou M, Li Z. Inhibition of nuclear factor-kappaB activation is essential for membrane-associated TNF-alpha-induced apoptosis in HL-60 cells. Immunol Cell Biol 2006; 84:366-73. [PMID: 16594899 DOI: 10.1111/j.1440-1711.2006.01436.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The killing of tumour cells that are resistant to soluble TNF-alpha (sTNF-alpha) by the membrane-bound form of TNF-alpha (mTNF-alpha) suggests that different intracellular signalling pathways are involved. We found that mTNF-alpha induced apoptosis in HL-60 cells and failed to cause degradation of inhibitor of kappa B alpha (IkappaB-alpha) and translocation and activation of nuclear factor kappa B (NF-kappaB), whereas sTNF-alpha failed to induce apoptosis, but lowered cytoplasmic inhibitor of kappa B alpha, induced translocation of NF-kappaB to the nucleus and experimentally increased activity of the regulated luciferase. Furthermore, mTNF-alpha upregulated the expression of TNF receptor associated factor (TRAF) 1 and failed to induce TRAF1 and TRAF2 membrane translocation, but led to cytoplasmic colocalization. In contrast, sTNF-alpha stimulated the expression of TRAF1 and TRAF2, recruiting both molecules onto the cell membrane poststimulation. These results suggest that the increased susceptibility of HL-60 cells to mTNF-alpha may be due to the failure of TRAF2 membrane translocation caused by the upregulation of TRAF1 expression and formation of a TRAF1/TRAF2 complex in the cytoplasm, thereby inhibiting NF-kappaB activation and inducing apoptosis.
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Affiliation(s)
- Wenfang Shi
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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