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glioblastoma multiforme

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https://www.readbyqxmd.com/read/28527107/an-immune-related-six-lncrna-signature-to-improve-prognosis-prediction-of-glioblastoma-multiforme
#1
Meng Zhou, Zhaoyue Zhang, Hengqiang Zhao, Siqi Bao, Liang Cheng, Jie Sun
Recent studies have demonstrated the utility and superiority of long non-coding RNAs (lncRNAs) as novel biomarkers for cancer diagnosis, prognosis, and therapy. In the present study, the prognostic value of lncRNAs in glioblastoma multiforme was systematically investigated by performing a genome-wide analysis of lncRNA expression profiles in 419 glioblastoma patients from The Cancer Genome Atlas (TCGA) project. Using survival analysis and Cox regression model, we identified a set of six lncRNAs (AC005013.5, UBE2R2-AS1, ENTPD1-AS1, RP11-89C21...
May 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28527010/glioblastoma-multiforme-gbm-in-the-elderly-initial-treatment-strategy-and-overall-survival
#2
Scott M Glaser, Michael J Dohopolski, Goundappa K Balasubramani, John C Flickinger, Sushil Beriwal
The EORTC trial which solidified the role of external beam radiotherapy (EBRT) plus temozolomide (TMZ) in the management of GBM excluded patients over age 70. Randomized studies of elderly patients showed that hypofractionated EBRT (HFRT) alone or TMZ alone was at least equivalent to conventionally fractionated EBRT (CFRT) alone. We sought to investigate the practice patterns and survival in elderly patients with GBM. We identified patients age 65-90 in the National Cancer Data Base (NCDB) with histologically confirmed GBM from 1998 to 2012 and known chemotherapy and radiotherapy status...
May 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28524900/tumor-treating-fields-nursing-implications-for-an-emerging-technology%C3%A2
#3
Alice Chang
Tumor-treating fields (TTFields) are a new technology used for cancer treatment consisting of battery-powered, insulated electromagnetic transducers that are placed on the scalp. This wearable, adhesive device is a certified physician-prescribed therapy for patients with glioblastoma multiforme, a type of primary brain cancer. TTFields are being used concomitantly with temozolomide (Temodar®) in patients with newly diagnosed glioblastoma and as a monotherapy in patients with recurrent glioblastoma after radiation therapy and chemotherapy...
June 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28523289/core-canonical-pathways-involved-in-developing-human-glioblastoma-multiforme-gbm
#4
Somiranjan Ghosh, Sisir Dutta, Gabriel Thorne, Ava Boston, Alexis Barfield, Narendra Banerjee, Rayshawn Walker, Hirendra Nath Banerjee
Glioblastoma multiforme (GBM) is the most common and aggressive type of the primary brain tumors with pathologic hallmarks of necrosis and vascular proliferation. The diagnosis of GBM is currently mostly based on histological examination of brain tumor tissues, after radiological characterization and surgical biopsy. The ability to characterize tumors comprehensively at the molecular level raises the possibility that diagnosis can be made based on molecular profiling with or without histological examination, rather than solely on histological phenotype...
February 2017: Int J Sci Res Sci Eng Technol
https://www.readbyqxmd.com/read/28521700/glioblastoma-multiforme-diagnosis-and-treatment-recent-literature-review
#5
Ron Batash, Noam Asna, Pamela Schaffer, Nicole Francis, Moshe Schaffer
BACKGROUND: Glioblastoma multiforme (GBM) is the most common malignant primary brain tumor, with an incidence of 3.19 cases per 100,000 person years and remarkably poor prognosis showing a 5-year survival rate of 4-5%, and only a 26-33% survival rate at 2 years in clinical trials. OBJECTIVE: In this paper, we review the different types of treatment modalities based on the relevant databases. Methods of diagnosis will be described briefly. METHOD: Systemic compilation of the relevant literature...
May 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28520445/telodendrimers-for-physical-encapsulation-and-covalent-linking-of-individual-or-combined-therapeutics
#6
Ashok Kakkar, Jason Choi, Alexandre Moquin, Enzo Bomal, Li Na, Dusica Maysinger
New therapeutics for glioblastoma multiforme and our ability to deliver them using efficient nanocarriers, constitute topical areas of research. We report a comparative study of temozolomide and quercetin in the treatment of glioblastoma (GBM) in 3D, and their incorporation into micelles obtained from synthetically articulated architectural copolymers, and a commercially available linear polymer poly(ethylene glycol)-poly(lactic-co-glycolic acid) (PEG-PLGA). A versatile synthetic methodology to telodendrimers which can be easily adapted to the needs of other therapeutic interventions, is presented...
May 18, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28518150/cycloheximide-promotes-paraptosis-induced-by-inhibition-of-cyclophilins-in-glioblastoma-multiforme
#7
Lin Wang, Justin H Gundelach, Richard J Bram
Cancer is the second leading cause of death worldwide. Current treatment strategies based on multi-agent chemotherapy and/or radiation regimens have improved overall survival in some cases. However, resistance to apoptosis often develops in cancer cells, and its occurrence is thought to contribute to treatment failure. Non-apoptotic cell death mechanisms have become of great interest, therefore, in hopes that they would bypass tumor cell resistance. Glioblastoma multiforme (GBM), a grade IV astrocytic tumor is the most frequent brain tumor in adults, and has a high rate of mortality...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28513547/epigenetic-regulation-of-telomere-maintenance-for-therapeutic-interventions-in-gliomas
#8
REVIEW
Elisabeth Naderlinger, Klaus Holzmann
High-grade astrocytoma of WHO grade 4 termed glioblastoma multiforme (GBM) is a common human brain tumor with poor patient outcome. Astrocytoma demonstrates two known telomere maintenance mechanisms (TMMs) based on telomerase activity (TA) and on alternative lengthening of telomeres (ALT). ALT is associated with lower tumor grades and better outcome. In contrast to ALT, regulation of TA in tumors by direct mutation and epigenetic activation of the hTERT promoter is well established. Here, we summarize the genetic background of TMMs in non-malignant cells and in cancer, in addition to clinical and pathological features of gliomas...
May 17, 2017: Genes
https://www.readbyqxmd.com/read/28512411/spinal-intradural-intramedullary-dissemination-in-the-absence-of-intracranial-relapse-of-a-previously-radically-treated-temporal-lobe-glioblastoma-multiforme
#9
Lucas Serrano, Eleftherios Archavlis, Elke Januschek, Pavel Timofeev, Peter Ulrich
Intracranial glioblastoma multiforme (GBM) constitutes the most frequent and unfortunately aggressive primary central nervous system malignancy. Despite the high tendency of these tumors to show local relapse within the brain after primary therapy, dissemination into the spinal axis is an infrequent event. If spinal metastases occur they are leptomeningeal in the vast majority of cases and always in the context of intracranial progressive disease. Spinal intramedullary metastases of intracranial GBM have rarely been described to date...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28507896/intraoperative-resection-control-using-arterial-spin-labeling-proof-of-concept-reproducibility-of-data-and-initial-results
#10
Thomas Lindner, Hajrullah Ahmeti, Isabel Lübbing, Michael Helle, Olav Jansen, Michael Synowitz, Stephan Ulmer
OBJECTIVES: Intraoperative magnetic resonance imaging is a unique tool for visualizing structures during resection and/or for updating any kind of neuronavigation that might be hampered as a result of brain shift during surgery. Advanced MRI techniques such as perfusion-weighted imaging have already proven to be important in the initial diagnosis preoperatively, but can also help to differentiate between tumor and surgically induced changes intraoperatively. Commonly used methods to visualize brain perfusion include contrast agent administration and are therefore somewhat limited...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28507382/prognostic-significance-of-idh-1-mutation-in-patients-with-glioblastoma-multiforme
#11
Inamullah Khan, Muhammad Waqas, Muhammad Shahzad Shamim
Focus of brain tumour research is shifting towards tumour genesis and genetics, and possible development of individualized treatment plans. Genetic analysis shows recurrent mutation in isocitrate dehydrogenase (IDH1) gene in most Glioblastoma multiforme (GBM) cells. In this review we evaluated the prognostic significance of IDH 1 mutation on the basis of published evidence. Multiple retrospective clinical analyses correlate the presence of IDH1 mutation in GBM with good prognostic outcomes compared to wild-type IDH1...
May 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28504958/prognostic-value-of-dna-repair-genes-based-on-stratification-of-glioblastomas
#12
Sun Kun, Qiwen Duan, Gang Liu, Jing-Min Lu
Abnormal expression of DNA repair genes is frequently associated with cancerogenesis of many tumors, however, the role DNA repair genes play in the progression of glioblastoma remains unclear. In this study, taking advantage of large scale of RNA-seq data, as well as clinical data, the function and prognosis value of key DNA repair genes in glioblastoma were analyzed by systematically bioinformatic approaches. Clustering was performed to screen potentially abnormal DNA repair genes related to the prognosis of glioblastoma, followed by unsupervised clustering to identify molecular subtypes of glioblastomas...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28501897/mir-181b-modulates-chemosensitivity-of-glioblastoma-multiforme-cells-to-temozolomide-by-targeting-the-epidermal-growth-factor-receptor
#13
Yunxiang Chen, Rui Li, Minhong Pan, Zhumei Shi, Wei Yan, Ning Liu, Yongping You, Junxia Zhang, Xiefeng Wang
Temozolomide (TMZ) is a promising chemotherapeutic agent to treat Glioblastoma multiforme (GBM). However, resistance to TMZ develops quickly with a high frequency. The mechanisms underlying GBM cells' resistance to TMZ are not fully understood. MicroRNAs (miRNAs) are small, non-coding RNA molecules that regulate protein expression by cleaving or repressing the translation of target mRNAs. Recently, miRNAs have been discovered to play important roles in drug resistance. A previous study showed that miR-181b in involved in glioma tumorigenesis...
May 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28500556/reversing-glioma-malignancy-a-new-look-at-the-role-of-antidepressant-drugs-as-adjuvant-therapy-for-glioblastoma-multiforme
#14
Anna M Bielecka-Wajdman, Marta Lesiak, Tomasz Ludyga, Aleksander Sieroń, Ewa Obuchowicz
PURPOSE: The role of glioma stem cells (GSCs) in cancer progression is currently debated; however, it is hypothesised that this subpopulation is partially responsible for therapeutic resistance observed in glioblastoma multiforme (GBM). Recent studies have shown that the current treatments not only fail to eliminate the GSC population but even promote GSCs through reprogramming of glioma non-stem cells to stem cells. Since the standard GBM treatment often requires supplementation with adjuvant drugs such as antidepressants, their role in the regulation of the heterogeneous nature of GSCs needs evaluation...
May 12, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28500050/a-systemic-analysis-of-transcriptomic-and-epigenomic-data-to-reveal-regulation-patterns-for-complex-disease
#15
Chao Xu, Ji-Gang Zhang, Dongdong Lin, Lan Zhang, Hui Shen, Hong-Wen Deng
Integrating diverse genomics data can provide a global view of the complex biological processes related to the human complex diseases. Although substantial efforts have been made to integrate different omics data, there are at least three challenges for multi-omics integration methods: (i) How to simultaneously consider the effects of various genomic factors, since these factors jointly influence the phenotypes; (ii) How to effectively incorporate the information from publicly accessible databases and omics datasets to fully capture the interactions among (epi-)genomic factors from diverse omics data; and (iii) Until present, the combination of >2 omics datasets has been poorly explored...
May 12, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28499389/a-phase-ii-trial-of-autologous-dendritic-cell-vaccination-and-radiochemotherapy-following-fluorescence-guided-surgery-in-newly-diagnosed-glioblastoma-patients
#16
Susana Inogés, Sonia Tejada, Ascensión López-Díaz de Cerio, Jaime Gállego Pérez-Larraya, Jaime Espinós, Miguel Angel Idoate, Pablo Daniel Domínguez, Reyes García de Eulate, Javier Aristu, Maurizio Bendandi, Fernando Pastor, Marta Alonso, Enrique Andreu, Felipe Prósper Cardoso, Ricardo Díez Valle
BACKGROUND: Prognosis of patients with glioblastoma multiforme (GBM) remains dismal, with median overall survival (OS) of about 15 months. It is therefore crucial to search alternative strategies that improve these results obtained with conventional treatments. In this context, immunotherapy seems to be a promising therapeutic option. We hypothesized that the addition of tumor lysate-pulsed autologous dendritic cells (DCs) vaccination to maximal safe resection followed by radiotherapy and concomitant and adjuvant temozolomide could improve patients' survival...
May 12, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28498803/differentially-expressed-proteins-in-glioblastoma-multiforme-identified-with-a-nanobody-based-anti-proteome-approach-and-confirmed-by-oncofinder-as-possible-tumor-class-predictive-biomarker-candidates
#17
Ivana Jovčevska, Neja Zupanec, Žiga Urlep, Andrej Vranič, Boštjan Matos, Clara Limbaeck Stokin, Serge Muyldermans, Michael P Myers, Anton A Buzdin, Ivan Petrov, Radovan Komel
Glioblastoma multiforme is the most frequent primary malignancy of the central nervous system. Despite remarkable progress towards an understanding of tumor biology, there is no efficient treatment and patient outcome remains poor. Here, we present a unique anti-proteomic approach for selection of nanobodies specific for overexpressed glioblastoma proteins. A phage-displayed nanobody library was enriched in protein extracts from NCH644 and NCH421K glioblastoma cell lines. Differential ELISA screenings revealed seven nanobodies that target the following antigens: the ACTB/NUCL complex, VIM, NAP1L1, TUFM, DPYSL2, CRMP1, and ALYREF...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28497156/tumor-suppressors-microrna-302d-and-microrna-16-inhibit-human-glioblastoma-multiforme-by-targeting-nf-%C3%AE%C2%BAb-and-fgf2
#18
Feng Wang, Lijun Yang, Jianping Sun, Jun Zheng, Lin Shi, Gengshen Zhang, Na Cui
Glioblastoma multiforme (GBM) is a highly malignant cancer in the brain with a median survival time of approximately one year. However, the mechanisms underlying GBM development and occurrence are poorly understood. Recently, miRNAs were reported to play important roles in GBM. We performed microRNA profiling by comparing the human GBM cell line T98G and control cell line HCN1A. MicroRNA assays, PCR and Western blot analysis were performed to detect the expressions of microRNAs, mRNAs and proteins of target genes, respectively...
May 12, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28494176/comparative-analysis-of-the-effects-of-a-sphingosine-kinase-inhibitor-to-temozolomide-and-radiation-treatment-on-glioblastoma-cell-lines
#19
Liliana R Oancea-Castillo, Carmen Klein, Amir Abdollahi, Klaus-Josef Weber, Anne Régnier-Vigouroux, Ivana Dokic
Glioblastoma multiforme (GBM) exhibits high resistance to the standard treatment of temozolomide (TMZ) combined with radiotherapy, due to its remarkable cell heterogeneity. Accordingly, there is a need to target alternative molecules enhancing specific GBM autocrine or paracrine mechanisms and amplifying the effect of standard treatment. Sphingosine 1-phosphate (S1P) is such a lipid target molecule with an important role in cell invasion and proliferation. Sphingosine kinase inhibitors (SKI) prevent S1P formation and induce increased production of reactive oxygen species (ROS), which may potentiate radiation cytotoxicity...
May 11, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28493947/post-translational-modifications-of-fda-approved-plasma-biomarkers-in-glioblastoma-samples
#20
Natalia A Petushkova, Victor G Zgoda, Mikhail A Pyatnitskiy, Olesya V Larina, Nadezhda B Teryaeva, Alexander A Potapov, Andrey V Lisitsa
Liquid chromatography-tandem mass spectrometry was used to analyze plasma proteins of volunteers (control) and patients with glioblastoma multiform (GBM). A database search was pre-set with a variable post-translational modification (PTM): phosphorylation, acetylation or ubiquitination. There were no significant differences between the control and the GBM groups regarding the number of protein identifications, sequence coverage or number of PTMs. However, in GBM plasma, we unambiguously observed a decreased fraction in post-translationally modified peptides identified with high quality...
2017: PloS One
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