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https://www.readbyqxmd.com/read/29315429/impact-of-oxygen-status-on-10b-bpa-uptake-into-human-glioblastoma-cells-referring-to-significance-in-boron-neutron-capture-therapy
#1
Yuki Wada, Katsumi Hirose, Takaomi Harada, Mariko Sato, Tsubasa Watanabe, Akira Anbai, Manabu Hashimoto, Yoshihiro Takai
Boron neutron capture therapy (BNCT) can potentially deliver high linear energy transfer particles to tumor cells without causing severe damage to surrounding normal tissue, and may thus be beneficial for cases with characteristics of infiltrative growth, which need a wider irradiation field, such as glioblastoma multiforme. Hypoxia is an important factor contributing to resistance to anticancer therapies such as radiotherapy and chemotherapy. In this study, we investigated the impact of oxygen status on 10B uptake in glioblastoma cells in vitro in order to evaluate the potential impact of local hypoxia on BNCT...
January 5, 2018: Journal of Radiation Research
https://www.readbyqxmd.com/read/29313954/phase-1-2-trial-of-temsirolimus-and-sorafenib-in-the-treatment-of-patients-with-recurrent-glioblastoma-north-central-cancer-treatment-group-study-alliance-n0572
#2
David Schiff, Kurt A Jaeckle, S Keith Anderson, Evanthia Galanis, Caterina Giannini, Jan C Buckner, Phillip Stella, Patrick J Flynn, Bradley J Erickson, John F Schwerkoske, Vesna Kaluza, Erin Twohy, Janet Dancey, John Wright, Jann N Sarkaria
BACKGROUND: Mitogen-activated protein kinase (MAPK) activation and mammalian target of rapamycin (mTOR)-dependent signaling are hallmarks of glioblastoma. In the current study, the authors conducted a phase 1/2 study of sorafenib (an inhibitor of Raf kinase and vascular endothelial growth factor receptor 2 [VEGFR-2]) and the mTOR inhibitor temsirolimus in patients with recurrent glioblastoma. METHODS: Patients with recurrent glioblastoma who developed disease progression after surgery or radiotherapy plus temozolomide and with ≤2 prior chemotherapy regimens were eligible...
January 3, 2018: Cancer
https://www.readbyqxmd.com/read/29298660/adjuvant-stereotactic-fractionated-radiotherapy-to-the-resection-cavity-in-recurrent-glioblastoma-the-gliocave-study-noa-17-aro-2016-3-dktk-rog-trial
#3
Christoph Straube, Hagen Scherb, Jens Gempt, Jan Kirschke, Claus Zimmer, Friederike Schmidt-Graf, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Glioblastoma relapses in the vast majority of cases within 1 year. Maximum safe resection of the recurrent glioblastoma can be offered in some cases. Re-irradiation has been established for the treatment of recurrent glioblastoma, too. In both cases, adjuvant treatment, mostly using temozolomide, can improve PFS and OS after these interventions. However, combining gross tumor resection and adjuvant re-radiotherapy to the resection cavity has not been tested so far. METHODS/DESIGN: In the multicenter two-armed randomized Phase II GlioCave Study, fractionated stereotactic radiotherapy to the resection cavity, after gross tumor resection of recurrent glioblastoma, will be compared to observation...
January 3, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29291003/pseudogenes-of-annexin-a2-novel-prognosis-biomarkers-for-diffuse-gliomas
#4
Shuang Li, Hecun Zou, Ying-Ying Shao, Ying Mei, Yu Cheng, Dong-Li Hu, Zhi-Rong Tan, Hong-Hao Zhou
Diffuse gliomas is a kind of common malignant primary brain tumor. Pseudogenes have multilayered biological function in the progression of human cancers. In this study, Differentially Expressed Pseudogenes (DEPs) between glioblastomas and non-tumor controls were found by bioinformatics analysis, of which the annexin A2 pseudogenes (ANXA2P1, ANXA2P2 and ANXA2P3) were significantly up-regulated, along with the parent gene annexin A2 (ANXA2). Among four glioblastoma subtypes, ANXA2P1 and ANXA2P2 were preferentially expressed in mesenchymal subtype and less expressed in proneural subtype...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29287241/serine-threonine-kinase-chek1-dependent-transcriptional-regulation-of-rad54l-promotes-proliferation-and-radio-resistance-in-glioblastoma
#5
Xiaobin Bai, Jia Wang, Longwei Huo, Yuchen Xie, Wanfu Xie, Gaofeng Xu, Maode Wang
Accumulating evidence indicates that Checkpoint kinase 1 (CHEK1) plays an essential role in tumor cells and that it could induce cell proliferation and could be related to prognosis in multiple types of cancer. However, the biological role and molecular mechanism of CHEK1 in GBM still remain unclear. In this study, we identified that CHEK1 expression was enriched in glioblastoma (GBM) tumors and was functionally required for tumor proliferation and that its expression was associated to poor prognosis in GBM patients...
December 26, 2017: Translational Oncology
https://www.readbyqxmd.com/read/29284526/postoperative-extracranial-metastasis-from-glioblastoma-a-case-report-and-review-of-the-literature
#6
Wenjiao Wu, Dequan Zhong, Zhan Zhao, Wentao Wang, Jun Li, Wei Zhang
BACKGROUND: Glioblastoma is the most common primary malignant brain tumor. Extraneural metastases are rarely reported in the literature. CASE PRESENTATION: We report a case of a 38-year-old patient who was diagnosed with glioblastoma in 2015. Four months after surgery, local relapse was found and the patient received a second surgery. After another 4 months, we found a hard mass in the right posterior neck when she admitted to our department for fourth cycle of adjuvant chemotherapy...
December 29, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29258180/major-challenges-and-potential-microenvironment-targeted-therapies-in-glioblastoma
#7
REVIEW
Ali S Arbab, Mohammad H Rashid, Kartik Angara, Thaiz F Borin, Ping-Chang Lin, Meenu Jain, Bhagelu R Achyut
Glioblastoma (GBM) is considered one of the most malignant, genetically heterogeneous, and therapy-resistant solid tumor. Therapeutic options are limited in GBM and involve surgical resection followed by chemotherapy and/or radiotherapy. Adjuvant therapies, including antiangiogenic treatments (AATs) targeting the VEGF-VEGFR pathway, have witnessed enhanced infiltration of bone marrow-derived myeloid cells, causing therapy resistance and tumor relapse in clinics and in preclinical models of GBM. This review article is focused on gathering previous clinical and preclinical reports featuring major challenges and lessons in GBM...
December 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29251531/micellar-formulations-of-crizotinib-and-dasatinib-in-the-management-of-glioblastoma-multiforme
#8
Khaled Greish, Anfal Jasim, Neha Parayath, Sara Abdelghany, Ali Alkhateeb, Sebastien Taurin, Hayley Nehoff
Glioblastoma multiforme (GBM) defies the currently practiced management of radiotherapy, chemotherapy and surgery and hence, it is associated with a high fatality rate with a median survival of 14.6 months. In our previous work investigating different tyrosine kinase inhibitors (TKIs), we established that a combination of Crizotinib and Dasatinib exerted the most potent effect on different GBM cell lines. In the current work, to improve targeted therapy at the site of the tumor and avoid systemic toxicity, we exploited the enhanced permeability and retention effect by designing micellar formulations of these two TKIs...
December 18, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29250175/atp7b-expression-in-human-glioblastoma-is-related-to-temozolomide-resistance
#9
F M Moinuddin, Hirofumi Hirano, Yoshinari Shinsato, Nayuta Higa, Kazunori Arita, Tatsuhiko Furukawa
Glioblastoma multiforme (GBM) is one of the most aggressive types of brain malignancy, with resistance to chemotherapy being a primary treatment obstacle. ATPase copper transporting β (ATP7B) is involved in multidrug resistance; however, its expression in GBM remains to be evaluated. In the present study, GBM specimens from 79 patients who underwent gross total tumor removal followed by concomitant temozolomide (TMZ) chemotherapy and radiotherapy were assessed immunohistochemically. The association between the overall survival times of patients and the expression of ATP7B in neoplastic cells was evaluated...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29249210/management-and-outcomes-in-the-oldest-old-population-with-glioblastoma
#10
Fabio Y Moraes, Andrea Lo, Erin R Morgan, Barbara-Ann Millar, David B Shultz, Catherine Maurice, Craig Harlos, Paul Kongkham, Mark Bernstein, Gelareh Zadeh, Normand Laperriere, Warren Mason, Alejandro Berlin
OBJECTIVES: Glioblastoma is a lethal disease in the elderly population. We aimed to evaluate disease and treatment outcomes in the oldest-old patients. METHODS: Patients >80 years old with histologically confirmed glioblastoma treated between 2004 and 2009 were identified. We included patients managed with best supportive care (BSC), temozolomide (TMZ) alone, radiotherapy (RT) alone, or concomitantly with TMZ (CRT). Survival outcomes were analyzed using the Kaplan-Meier method...
December 18, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29248175/calvarium-mass-as-the-first-presentation-of-glioblastoma-multiforme-a-very-rare-manifestation-of-high-grade-glioma
#11
S Taghipour Zahir, M Mortaz, M Baghi Yazdi, N Sefidrokh Sharahjin, M Shabani
Glioblastoma multiforme (GBM) is a high grade glial tumor, primarily located in cerebral hemispheres. The most common clinical presentations are slowly progressive neurological deficit such as motor weakness, seizure, and headaches that last less than three months. Calvarium and extra-axial invasion are very rare and generally occur after a brain biopsy or surgery, or secondary to radiotherapy of primary intra-axial glial tumors. We report a case of GBM with calvarium involvement in a 60-year-old man who presented with a frontal bump and left-sided clumsiness...
December 13, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29246647/anticancer-activity-of-osmium-vi-nitrido-complexes-in-patient-derived-glioblastoma-initiating-cells-and-in-vivo-mouse-models
#12
Gilles Berger, Korneel Grauwet, Hong Zhang, Amanda M Hussey, Michal O Nowicki, David I Wang, E Antonio Chiocca, Sean E Lawler, Stephen J Lippard
Glioblastoma is the most prevalent and lethal primary intrinsic brain tumor with a median patient survival of less than two years, even with the optimal standard of care, namely, surgical resection followed by radiotherapy with adjuvant temozolomide chemotherapy. Long-term survival is extremely rare and there is a tremendous need for novel GBM therapies. Following our prior reports on the anticancer activity of osmium(VI) nitrido compounds and their effectiveness against cancer initiating cells, we investigated the efficacy of Os(VI) on GBM initiating cells in vitro and in vivo...
December 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29244086/cerebral-blood-flow-changes-after-radiation-therapy-identifies-pseudo-progression-in-diffuse-intrinsic-pontine-gliomas
#13
Raphael Calmon, Stephanie Puget, Pascale Varlet, Volodia Dangouloff-Ros, Thomas Blauwblomme, Kevin Beccaria, David Grevent, Christian Sainte-Rose, David Castel, Marie-Anne Debily, Christelle Dufour, Stéphanie Bolle, Frederic Dhermain, Ana Saitovitch, Monica Zilbovicius, Francis Brunelle, Jacques Grill, Nathalie Boddaert
Background: The interval between progression and death in diffuse intrinsic pontine glioma (DIPG) is usually < 6 months. However, reports of longer patient survival following radiotherapy, in the presence of radiological signs of progression, suggest that these cases may be comparable to pseudo-progression observed in adult glioblastoma. Our aim was to identify such cases and compare their multimodal MRI features with those of patients that did not present the same evolution. Methods: Multimodal MRI of 43 children treated for DIPG were retrospectively selected at four time points: baseline, after-radiotherapy, during true-progression, and at the last-visit...
December 13, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29232556/mst4-phosphorylation-of-atg4b-regulates-autophagic-activity-tumorigenicity-and-radioresistance-in-glioblastoma
#14
Tianzhi Huang, Chung Kwon Kim, Angel A Alvarez, Rajendra P Pangeni, Xuechao Wan, Xiao Song, Taiping Shi, Yongyong Yang, Namratha Sastry, Craig M Horbinski, Songjian Lu, Roger Stupp, John A Kessler, Ryo Nishikawa, Ichiro Nakano, Erik P Sulman, Xinghua Lu, Charles David James, Xiao-Ming Yin, Bo Hu, Shi-Yuan Cheng
ATG4B stimulates autophagy by promoting autophagosome formation through reversible modification of ATG8. We identify ATG4B as a substrate of mammalian sterile20-like kinase (STK) 26/MST4. MST4 phosphorylates ATG4B at serine residue 383, which stimulates ATG4B activity and increases autophagic flux. Inhibition of MST4 or ATG4B activities using genetic approaches or an inhibitor of ATG4B suppresses autophagy and the tumorigenicity of glioblastoma (GBM) cells. Furthermore, radiation induces MST4 expression, ATG4B phosphorylation, and autophagy...
December 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29222400/nkg2d-based-car-t-cells-and-radiotherapy-exert-synergistic-efficacy-in-glioblastoma
#15
Tobias Weiss, Michael Weller, Matthias Guckenberger, Charles L Sentman, Patrick Roth
Chimeric antigen receptor (CAR) T cell therapy is an emerging immunotherapy against several malignancies including glioblastoma, the most common and most aggressive malignant primary brain tumor in adults. The challenges in solid tumor immunotherapy comprise heterogenously expressed tumor target antigens and restricted trafficking of CAR T cells to and impaired long-term persistence at the tumor site, as well as the unaddressed integration of CAR T cell therapy into conventional anti-cancer treatments. We addressed these questions using a NKG2D-based chimeric antigen receptor construct (chNKG2D) in fully immunocompetent orthotopic glioblastoma mouse models...
December 8, 2017: Cancer Research
https://www.readbyqxmd.com/read/29222038/hdac6-inhibition-induces-glioma-stem-cells-differentiation-and-enhances-cellular-radiation-sensitivity-through-the-shh-gli1-signaling-pathway
#16
Wei Yang, Yingying Liu, Ruoling Gao, Hongquan Yu, Ting Sun
The existence of small numbers of stem-like cells, called glioma stem cells (GSCs), in human glioblastoma multiforme (GBM) is responsible for recurrence due to resistance to radiotherapy and chemotherapy. Inhibition of histone deacetylase 6 (HDAC6) enhanced radiosensitivity of cancer cells. However, the effect of inhibiting HDAC6 on stemness and radioresistance of GSCs and its molecular mechanism are largely unknown. In the present study, we found that HDAC6 was upregulated in GSCs comparing to non-stem tumor cells...
December 5, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29212499/radiotherapy-plus-temozolomide-in-elderly-patients-with-glioblastoma-a-real-life-report
#17
J Biau, E Chautard, E De Schlichting, G Dupic, B Pereira, A Fogli, M Müller-Barthélémy, P Dalloz, T Khalil, A F Dillies, X Durando, C Godfraind, P Verrelle
BACKGROUND: The optimization of the management for elderly glioblastoma patients is crucial given the demographics of aging in many countries. We report the outcomes for a "real-life" patient cohort (i.e. unselected) comprising consecutive glioblastoma patients aged 70 years or more, treated with different radiotherapy +/- temozolomide regimens. METHODS: From 2003 to 2016, 104 patients ≥ 70 years of age, consecutively treated by radiotherapy for glioblastoma, were included in this study...
December 6, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29209874/utilization-of-hypofractionated-radiotherapy-in-treatment-of-glioblastoma-multiforme-in-elderly-patients-not-receiving-adjuvant-chemoradiotherapy-a-national-cancer-database-analysis
#18
Brian Bingham, Chirayu G Patel, Eric T Shinohara, Albert Attia
To assess the utilization and outcomes of adjuvant monotherapy with hypofractionated radiation (RT) among elderly patients not receiving traditional adjuvant chemoradiotherapy (cRT) for glioblastoma multiforme (GBM). A retrospective analysis using the National Cancer Data Base with GBM patients aged 65 years or older treated between 2005 and 2012 was conducted. Patients who underwent hypofractionated RT (40 Gy), conventional RT (60 Gy), chemotherapy, or best supportive care alone were included. Statistical methods included logistic regression for utilization and Cox regression for survival analysis...
December 5, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29209782/advances-in-immunotherapeutic-research-for-glioma-therapy
#19
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/29209515/ketogenic-diets-as-an-adjuvant-therapy-in-glioblastoma-the-keating-trial-study-protocol-for-a-randomised-pilot-study
#20
Kirsty J Martin-McGill, Anthony G Marson, Catrin Tudur Smith, Michael D Jenkinson
Background: Glioblastoma is the commonest form of malignant brain tumour in adults, affecting 2-3 people per 100,000 per year. Despite current treatment options including surgical resection, radiotherapy and temozolomide chemotherapy, overall survival at 2 years is approximately 27%, with a median survival of 12-14 months. The ketogenic diet (KD) is postulated to work by simulating the metabolic response to fasting by promoting the utilisation of ketones as a primary energy source, and depriving the glycolytic pathways utilised by malignant glioma cells for growth...
2017: Pilot and Feasibility Studies
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