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https://www.readbyqxmd.com/read/29220380/hexokinase-2-hk2-the-tumor-promoter-in-glioma-is-downregulated-by-mir-218-bmi1-pathway
#1
Hui Liu, Nan Liu, Yingduan Cheng, Weilin Jin, Pengxing Zhang, Xin Wang, Hongwei Yang, Xiaoshan Xu, Zhen Wang, Yanyang Tu
In cancer, glycolysis driving enzymes and their regulating microRNAs are one of the key focus of oncology research lately. The glycolytic enzyme hexokinase 2 (HK2) is crucial for the Warburg effect in human glioma, the most common malignant brain tumor. In the present study, we studied the tumorigenic role of HK2 in glioma, and clarified the mechanism of miR-218 induced HK2 regulation in glioma development. The HK2 expression in patient derived glioma and non neoplastic brain tissue was quantified. The HK2 silenced U87 and U251 cell lines were assessed for their proliferation, migration and invasive potential in vitro, while the tumor forming potential of U87 cells was evaluated in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29218895/deep-integrative-analysis-for-survival-prediction
#2
Chenglong Huang, Albert Zhang, Guanghua Xiao
Survival prediction is very important in medical treatment. However, recent leading research is challenged by two factors: 1) the datasets usually come with multi-modality; and 2) sample sizes are relatively small. To solve the above challenges, we developed a deep survival learning model to predict patients' survival outcomes by integrating multi-view data. The proposed network contains two sub-networks, one view-specific and one common sub-network. We designated one CNN-based and one FCN-based sub-network to efficiently handle pathological images and molecular profiles, respectively...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29218894/mri-to-mgmt-predicting-methylation-status-in-glioblastoma-patients-using-convolutional-recurrent-neural-networks
#3
Lichy Han, Maulik R Kamdar
Glioblastoma Multiforme (GBM), a malignant brain tumor, is among the most lethal of all cancers. Temozolomide is the primary chemotherapy treatment for patients diagnosed with GBM. The methylation status of the promoter or the enhancer regions of the O6-methylguanine methyltransferase (MGMT) gene may impact the efficacy and sensitivity of temozolomide, and hence may affect overall patient survival. Microscopic genetic changes may manifest as macroscopic morphological changes in the brain tumors that can be detected using magnetic resonance imaging (MRI), which can serve as noninvasive biomarkers for determining methylation of MGMT regulatory regions...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29215907/chemotherapy-and-cognitive-impairment-an-animal-model-approach
#4
Gordon Winocur
A substantial number of cancer survivors who undergo chemotherapy report cognitive disturbances that severely limit daily function (chemobrain). Despite supportive neuropsychological evidence, there is controversy over whether cognitive impairment is caused by the chemotherapy or is the result of potentially confounding factors that include the disease itself, age, and psychological stress. Our research program, conducted on rodents, has confirmed that a range of cognitive processes, mediated in particular by hippocampal and prefrontal brain regions, are affected by anticancer drugs in combination with tumor development and that many of the effects are long lasting...
December 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/29215294/structure-reconstruction-of-lyp-1-lc-lyp-1-coupling-by-amide-bond-inspires-the-brain-metastatic-tumor-targeted-drug-delivery
#5
Xiaoyu Zhang, Fei Wang, Qing Shen, Cao Xie, Yu Liu, Jun Pan, Weiyue Lu
The stability and binding affinity of targeting ligands play important roles in active targeting drug delivery. Herein LyP-1 peptide was used as a model peptide to investigate chemical-biology-based strategies in the design of peptide ligands for active targeting. LyP-1, a short peptide cyclized with a disulfide bond, can specifically bind to tumor cells and tumor lymphatics through the interaction with cell-surface protein p32/gC1qR. Lc(LyP-1), with the same sequence of LyP-1 by amide coupling, showed better cellular uptake and stability in blood in our previous research...
December 7, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29209782/advances-in-immunotherapeutic-research-for-glioma-therapy
#6
REVIEW
Jeremy Tetsuo Miyauchi, Stella E Tsirka
Gliomas are primary malignancies of the brain. Tumors are staged based on malignancy, nuclear atypia, and infiltration of the surrounding brain parenchyma. Tumors are often diagnosed once patients become symptomatic, at which time the lesion is sizable. Glioblastoma (grade IV glioma) is highly aggressive and difficult to treat. Most tumors are diagnosed de novo. The gold standard of therapy, implemented over a decade ago, consists of fractionated radiotherapy and temozolomide, but unfortunately, chemotherapeutic resistance arises...
December 5, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29204526/outcomes-and-patterns-of-care-in-a-nationwide-cohort-of-pediatric-medulloblastoma-factors-affecting-proton-therapy-utilization
#7
Andrew S Kopecky, Atif J Khan, Wilbur Pan, Richard Drachtman, Rahul R Parikh
Purpose: We examined national outcomes and patterns of care for pediatric patients with medulloblastoma (MB) in a large observational cohort. Methods and materials: Using the National Cancer Database, we evaluated the clinical features and survival outcomes of patients diagnosed with MB. The association between intervention, covariables, and outcome was assessed in a multivariable Cox analysis and through logistic regression analysis. Survival was estimated using the Kaplan-Meier method...
October 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29200118/palliative-care-end-of-life-care-and-advance-care-planning-in-neuro-oncology
#8
Tobias Walbert
PURPOSE OF REVIEW: Despite new therapeutic approaches, most patients with high-grade glioma face limited overall survival and have a high symptom burden throughout their disease trajectory, especially in the end-of-life phase. This article provides an overview of the role of palliative care in neuro-oncology. Management recommendations are made for neurologic symptoms in patients with advanced brain tumors, including headaches, nausea, and fatigue. Special attention is given to how and when to involve subspecialty palliative care and hospice services to improve symptom management during active tumor treatment and in the end-of-life phase of patients with brain tumors...
December 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29199724/survival-and-prognostic-factors-for-glioblastoma-multiforme-retrospective-single-institutional-study
#9
M Ghosh, S Shubham, K Mandal, V Trivedi, R Chauhan, S Naseera
INTRODUCTION: Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor in adults. The standard management has been maximum surgical resection followed by adjuvant radiotherapy with concurrent chemotherapy followed by adjuvant chemotherapy. Although the survival rate of patients with GBM has improved with recent advancements in treatment, the prognosis remains generally poor. The median survival rates are in the range of 9-12 months and 2-year survival rates are in the range of 8%-12%...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29190632/tinnitus-is-associated-with-a-higher-risk-of-benign-brain-tumors-a-nationwide-population-based-secondary-cohort-study-of-young-and-middle-aged-adults
#10
Jin-Cherng Chen, Malcolm Koo, Juen-Haur Hwang
BACKGROUND: It remains unclear whether tinnitus is associated with a higher risk of benign or malignant brain tumors in humans. Therefore, the aim of this secondary study was to investigate the risk of brain tumors in adult with tinnitus using data from a nationwide health claims research database. METHODS: Patients aged 20-50 years who were newly diagnosed with tinnitus were identified from the Taiwan's National Health Insurance Research Database and they served as the study cohort...
November 30, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/29189165/childhood-medulloblastoma-current-therapies-emerging-molecular-landscape-and-newer-therapeutic-insights
#11
Soumen Khatua, Anne Song, Divyaswathi Citla Sridhar, Stephen C Mack
Medulloblastoma is the most common malignant brain tumor in children, currently treated uniformly based on histopathology and clinico-radiological risk stratification. This approach has been undermined by unpredictable relapses and therapeutic failures. Research endeavors over the last decade have clearly identified four molecular variants (WNT, SHH, Group 3, and Group 4) and their demographic, genomic, and epigenetic profile. Improved understanding of the signaling pathways and key oncogenic drivers in these subgroups, has shed light on the reasons for suboptimal clinical outcome and mechanisms of therapeutic resistance...
November 28, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/29187012/targeted-therapies-in-non-small-cell-lung-cancer-a-focus-on-alk-ros1-tyrosine-kinase-inhibitors
#12
Assunta Sgambato, Francesca Casaluce, Paolo Maione, Cesare Gridelli
Anaplastic lymphoma kinase (ALK) and ROS1 rearrangements define important molecular subgroups of advanced non-small cell lung cancer (NSCLC). The identification of these genetic driver alterations created new potential for highly active therapeutic interventions. After discovery of ALK rearrangements in NSCLC, it was recognized that these confer sensitivity to ALK inhibition. Areas covered: Crizotinib, the first-in-class ALK/ROS1/MET inhibitor, was initially approved as second-line treatment of ALK-positive advanced NSCLC but after this, it was firmly established as the standard first-line therapy for advanced ALK-positive NSCLC...
November 29, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29183026/late-effects-and-long-term-follow-up-after-cancer-in-childhood
#13
Thorsten Langer, Desiree Grabow, Diana Steinmann, Bernhard Wörmann, Gabriele Calaminus
Today, 80% of children and adolescents with cancer survive their disease. From the results of aftercare research arises the question: Are the survivors also healthy? Many late effects depend on the type of cancer and its treatment. Patients with brain tumors and with malignant sarcomas are very often affected by secondary diseases. Data from the USA report that around 2/3 of all patients still living 30 years after their cancer treatment in childhood suffer from late complications. Equivalent figures for Germany were previously unavailable...
2017: Oncology Research and Treatment
https://www.readbyqxmd.com/read/29167111/hla-loss-in-nsclc-facilitating-immune-escape
#14
(no author information available yet)
Researchers have developed a new software tool, called LOHHLA, which can pinpoint allele-specific HLA loss in tumors. When applied to a cohort of patients with non-small cell lung cancer, this genomic event was detected in 40% of cases, increasing in frequency as the disease spread to the brain.
November 22, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/29166593/neural-correlates-of-improvements-in-personality-and-behavior-following-a-neurological-event
#15
Marcie L King, Kenneth Manzel, Joel Bruss, Daniel Tranel
Research on changes in personality and behavior following brain damage has focused largely on negative outcomes, such as increased irritability, moodiness, and social inappropriateness. However, clinical observations suggest that some patients may actually show positive personality and behavioral changes following a neurological event. In the current work, we investigated neuroanatomical correlates of positive personality and behavioral changes following a discrete neurological event (e.g., stroke, benign tumor resection)...
November 19, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29163069/notes-on-the-recent-history-of-neuroscience-in-africa
#16
REVIEW
Vivienne A Russell
Neuroscience began with neuroanatomy and neurosurgery in Egypt more than 5000 years ago. Knowledge grew over time and specialized neurosurgery centers were established in north Africa in the eleventh century. However, it was not until the twentieth century that neuroscience research became established in sub-Saharan Africa. In most African countries, clinical research focused on understanding the rationale and improving treatment of epilepsy, infections, nutritional neuropathies, stroke and tumors. Significant advances were made...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29161113/disseminability-of-computerized-cognitive-training-performance-across-coaches
#17
Ashley S Fournier-Goodnight, Jason M Ashford, Kellie N Clark, Karen Martin-Elbahesh, Kristina K Hardy, Thomas E Merchant, Sima Jeha, Robert J Ogg, Hui Zhang, Lei Wang, Heather M Conklin
Cogmed is a computerized cognitive intervention utilizing coaches who receive standardized instruction in analyzing training indices and tailoring feedback to remotely monitor participant's performance. The goal of this study was to examine adherence, satisfaction, and efficacy of Cogmed across coaches. Survivors of pediatric brain tumors and acute lymphoblastic leukemia (N = 68) were randomized to intervention (Cogmed) or waitlist control. The intervention group was matched with one of two coaches. Cognitive assessments were completed before and after intervention, and participants and caregivers in the intervention group completed satisfaction surveys...
November 21, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/29156849/interest-of-integrins-targeting-in-glioblastoma-according-to-tumor-heterogeneity-and-cancer-stem-cell-paradigm-an-update
#18
REVIEW
Laure Malric, Sylvie Monferran, Julia Gilhodes, Sabrina Boyrie, Perrine Dahan, Nicolas Skuli, Julie Sesen, Thomas Filleron, Aline Kowalski-Chauvel, Elizabeth Cohen-Jonathan Moyal, Christine Toulas, Anthony Lemarié
Glioblastomas are malignant brain tumors with dismal prognosis despite standard treatment with surgery and radio/chemotherapy. These tumors are defined by an important cellular heterogeneity and notably contain a particular subpopulation of Glioblastoma-initiating cells, which recapitulate the heterogeneity of the original Glioblastoma. In order to classify these heterogeneous tumors, genomic profiling has also been undertaken to classify these heterogeneous tumors into several subtypes. Current research focuses on developing therapies, which could take into account this cellular and genomic heterogeneity...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156720/novel-strategies-of-raman-imaging-for-brain-tumor-research
#19
Imiela Anna, Polis Bartosz, Polis Lech, Abramczyk Halina
Raman diagnostics and imaging have been shown to be an effective tool for the analysis and discrimination of human brain tumors from normal structures. Raman spectroscopic methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n= 5), low-grade astrocytoma (grades I-II WHO) (n =4), ependymoma (n=3) and metastatic brain tumors (n= 1) and the tissue from the negative margins used as normal controls...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29134342/an-introduction-and-overview-of-machine-learning-in-neurosurgical-care
#20
REVIEW
Joeky T Senders, Mark M Zaki, Aditya V Karhade, Bliss Chang, William B Gormley, Marike L Broekman, Timothy R Smith, Omar Arnaout
BACKGROUND: Machine learning (ML) is a branch of artificial intelligence that allows computers to learn from large complex datasets without being explicitly programmed. Although ML is already widely manifest in our daily lives in various forms, the considerable potential of ML has yet to find its way into mainstream medical research and day-to-day clinical care. The complex diagnostic and therapeutic modalities used in neurosurgery provide a vast amount of data that is ideally suited for ML models...
November 13, 2017: Acta Neurochirurgica
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