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Brain tumor drug

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https://www.readbyqxmd.com/read/28103571/identification-of-aurintricarboxylic-acid-as-a-selective-inhibitor-of-the-tweak-fn14-signaling-pathway-in-glioblastoma-cells
#1
Alison Roos, Harshil D Dhruv, Ian T Mathews, Landon J Inge, Serdar Tuncali, Lauren K Hartman, Donald Chow, Nghia Millard, Holly H Yin, Jean Kloss, Joseph C Loftus, Jeffrey A Winkles, Michael E Berens, Nhan L Tran
The survival of patients diagnosed with glioblastoma (GBM), the most deadly form of brain cancer, is compromised by the proclivity for local invasion into the surrounding normal brain, which prevents complete surgical resection and contributes to therapeutic resistance. Tumor necrosis factor-like weak inducer of apoptosis (TWEAK), a member of the tumor necrosis factor (TNF) superfamily, can stimulate glioma cell invasion and survival via binding to fibroblast growth factor-inducible 14 (Fn14) and subsequent activation of the transcription factor NF-κB...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28103265/rabbit-model-of-human-gliomas-implications-for-intra-arterial-drug-delivery
#2
Huamin Qin, Miroslaw Janowski, Monica S Pearl, Izabela Malysz-Cymborska, Shen Li, Charles G Eberhart, Piotr Walczak
The prognosis for malignant brain tumors remains poor despite a combination of surgery, radiotherapy, and chemotherapy. This is partly due to the blood-brain barrier, a major obstacle that prevents therapeutic agents from effectively reaching the tumor. We have recently developed a method for precise and predictable opening of the blood-brain barrier via the intra-arterial administration of mannitol, a hyperosmolar agent, in a rabbit model, whose vascular anatomy facilitates the use of standard interventional neuroradiology techniques and devices...
2017: PloS One
https://www.readbyqxmd.com/read/28101166/hsp70-inducer-17-allylamino-demethoxygeldanamycin-provides-neuroprotection-via-anti-inflammatory-effects-in-a-rat-model-of-traumatic-brain-injury
#3
Youquan Gu, Jun Chen, Tianhong Wang, Chaoning Zhou, Zhaodong Liu, Lanhua Ma
Traumatic brain injury (TBI) is the predominant cause of mortality in young adults and children living in China. TBI induces inflammatory responses; in addition, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and IL-6 are important pro-inflammatory cytokines. Considering the observation that Hsp-70 overexpression can exert neuroprotection, identifying a drug that is able to induce the upregulation of Hsp70 has the potential to be a promising therapy for the treatment of neurological diseases. Thus, the present study assessed the clinical effectiveness of an anticancer drug and Hsp70 activator, 17-allylamino-demethoxygeldanamycin (17-AAG), to evaluate its potential as a treatment for patients with TBI...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099914/advances-in-epigenetic-glioblastoma-therapy
#4
Dong Hoon Lee, Hyun-Wook Ryu, Hye-Rim Won, So Hee Kwon
Glioblastoma multiforme (GBM) is the most lethal primary brain tumor in adults despite contemporary gold-standard first-line treatment strategies. This type of tumor recurs in virtually all patients and no commonly accepted standard treatment exists for the recurrent disease. Therefore, advances in all scientific and clinical aspects of GBM are urgently needed. Epigenetic mechanisms are one of the major factors contributing to the pathogenesis of cancers, including glioblastoma. Epigenetic modulators that regulate gene expression by altering the epigenome and non-histone proteins are being exploited as therapeutic drug targets...
January 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28095746/targeting-of-herbal-bioactives-through-folate-receptors-a-novel-concept-to-enhance-intracellular-drug-delivery-in-cancer-therapy
#5
Anshita Gupta, Chanchal Deep Kaur, Shailendra Saraf, Swarnlata Saraf
Targeted drug delivery through folate receptor (FR) has emerged as a most biocompatible, target oriented, and non-immunogenic cargoes for the delivery of anticancer drugs. FRs are highly overexpressed in many tumor cells (like ovarian, lung, breast, kidney, brain, endometrial, and colon cancer), and targeting them through conjugates bearing specific ligand with encapsulated nanodrug moiety is undoubtedly, a promising approach toward tumor targeting. Folate, being an endogenous ligand, can be exploited well to affect various cellular events occurring during the progress of tumor, in a more natural and definite way...
January 17, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28095679/non-naturally-occurring-small-molecule-microtubule-stabilizing-agents-a-potential-tactic-for-cns-directed-therapies
#6
Carlo Ballatore, Kurt R Brunden, John Q Trojanowski, Virginia M-Y Lee, Amos B Smith
Several independent studies indicate that microtubule (MT)-stabilizing agents hold considerable promise as candidate therapeutics for a wide spectrum of conditions of the central nervous system (CNS), from brain tumors to spinal cord injury, as well as a number of neurodegenerative diseases, including Alzheimer's disease, frontotemporal lobar degeneration, Parkinson's disease, and amyotrophic lateral sclerosis. Although the identification and development of candidate compounds for CNS-directed MT-stabilizing therapies has been a challenge in drug discovery for many years, a growing number of molecules have now been identified that exhibit both MT-stabilizing activity and brain penetration...
18, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28070719/sunitinib-paracetamol-sex-divergent-pharmacokinetics-and-tissue-distribution-drug-drug-interaction-in-mice
#7
Ming Hui Liew, Salby Ng, Chii Chii Chew, Teng Wai Koo, Yun Lee Chee, Evelyn Li-Ching Chee, Pilar Modamio, Cecilia Fernández, Eduardo L Mariño, Ignacio Segarra
The sex-divergent pharmacokinetics and interaction of tyrosine kinase inhibitor sunitinib with paracetamol was evaluated in male and female mice. Mice (control groups) were administered 60 mg/kg PO sunitinib alone or with 200 mg/kg PO paracetamol (study groups). Sunitinib concentration in plasma, brain, kidney and liver were determined and non-compartmental pharmacokinetic analysis performed. Female control mice showed 36% higher plasma sunitinib AUC0→∞, 31% and 27% lower liver and kidney AUC0→∞ and 2...
January 9, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28068482/metabolic-reprogramming-in-brain-tumors
#8
Sriram Venneti, Craig B Thompson
Next-generation sequencing has substantially enhanced our understanding of the genetics of primary brain tumors by uncovering several novel driver genetic alterations. How many of these genetic modifications contribute to the pathogenesis of brain tumors is not well understood. An exciting paradigm emerging in cancer biology is that oncogenes actively reprogram cellular metabolism to enable tumors to survive and proliferate. We discuss how some of these genetic alterations in brain tumors rewire metabolism...
December 21, 2016: Annual Review of Pathology
https://www.readbyqxmd.com/read/28068234/radiation-dose-dependent-hippocampal-atrophy-detected-with-longitudinal-volumetric-magnetic-resonance-imaging
#9
Tyler M Seibert, Roshan Karunamuni, Hauke Bartsch, Samar Kaifi, Anitha Priya Krishnan, Yoseph Dalia, Jeffrey Burkeen, Vyacheslav Murzin, Vitali Moiseenko, Joshua Kuperman, Nathan S White, James B Brewer, Nikdokht Farid, Carrie R McDonald, Jona A Hattangadi-Gluth
PURPOSE: After radiation therapy (RT) to the brain, patients often experience memory impairment, which may be partially mediated by damage to the hippocampus. Hippocampal sparing in RT planning is the subject of recent and ongoing clinical trials. Calculating appropriate hippocampal dose constraints would be improved by efficient in vivo measurements of hippocampal damage. In this study we sought to determine whether brain RT was associated with dose-dependent hippocampal atrophy. METHODS AND MATERIALS: Hippocampal volume was measured with magnetic resonance imaging (MRI) in 52 patients who underwent fractionated, partial brain RT for primary brain tumors...
February 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28066810/dynamic-susceptibility-contrast-mri-quantification-software-tool-development-and-evaluation
#10
Panagiotis Korfiatis, Timothy L Kline, Zachary S Kelm, Rickey E Carter, Leland S Hu, Bradley J Erickson
Relative cerebral blood volume (rCBV) is a magnetic resonance imaging biomarker that is used to differentiate progression from pseudoprogression in patients with glioblastoma multiforme, the most common primary brain tumor. However, calculated rCBV depends considerably on the software used. Automating all steps required for rCBV calculation is important, as user interaction can lead to increased variability and possible inaccuracies in clinical decision-making. Here, we present an automated tool for computing rCBV from dynamic susceptibility contrast-magnetic resonance imaging that includes leakage correction...
December 2016: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/28062709/trifluoperazine-a-well-known-antipsychotic-inhibits-glioblastoma-invasion-by-binding-to-calmodulin-and-disinhibiting-calcium-release-channel-ip3r
#11
Seokmin Kang, Jinpyo Hong, Jung Moo Lee, Hyo Eun Moon, Borami Jeon, Jungil Choi, Nal Ae Yoon, Sun Ha Paek, Eun Joo Roh, C Justin Lee, Sang Soo Kang
Calcium (Ca(2+)) signaling is an important signaling process, implicated in cancer cell proliferation and motility of the deadly glioblastomas that aggressively invade neighboring brain tissue. We have previously demonstrated that caffeine blocks glioblastoma invasion and extends survival by inhibiting Ca(2+) release channel inositol 1,4,5-trisphosphate receptor (IP3R) subtype 3. Trifluoperazine (TFP) is an FDA-approved antipsychotic drug for schizophrenia. Interestingly, TFP has been recently reported to show a strong anticancer effect on lung cancer, hepatocellular carcinoma, and T-cell lymphoma...
January 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28061549/fast-and-simple-detection-methods-for-the-4-base-pair-deletion-of-canine-mdr1-abcb1-gene-by-pcr-and-isothermal-amplification
#12
Cathrin P Stiedl, Karin Weber
Dogs with a 4-bp deletion in the MDR1 (or ABCB1) gene show intolerance to certain drugs routinely used in veterinary medicine, such as ivermectin, vincristine, and doxorubicin. The mutation leads to a dysfunctional P-glycoprotein drug transporter, which results in drug accumulation in the brain and severe neurotoxicity. A rapid and accurate in-house test to determine the genotype of patients in cases of acute neurotoxic signs or in tumor patients is desirable. We describe a cost-effective detection method with simple technical equipment for veterinary practice...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28052119/pre-clinical-study-of-panobinostat-in-xenograft-and-genetically-engineered-murine-diffuse-intrinsic-pontine-glioma-models
#13
Tammy Hennika, Guo Hu, Nagore G Olaciregui, Kelly L Barton, Anahid Ehteda, Arjanna Chitranjan, Cecilia Chang, Andrew J Gifford, Maria Tsoli, David S Ziegler, Angel M Carcaboso, Oren J Becher
BACKGROUND: Diffuse intrinsic pontine glioma (DIPG), or high-grade brainstem glioma (BSG), is one of the major causes of brain tumor-related deaths in children. Its prognosis has remained poor despite numerous efforts to improve survival. Panobinostat, a histone deacetylase inhibitor, is a targeted agent that has recently shown pre-clinical efficacy and entered a phase I clinical trial for the treatment of children with recurrent or progressive DIPG. METHODS: A collaborative pre-clinical study was conducted using both a genetic BSG mouse model driven by PDGF-B signaling, p53 loss, and ectopic H3...
2017: PloS One
https://www.readbyqxmd.com/read/28049425/the-variability-of-motor-evoked-potential-latencies-in-neurosurgical-motor-mapping-by-preoperative-navigated-transcranial-magnetic-stimulation
#14
Nico Sollmann, Lucia Bulubas, Noriko Tanigawa, Claus Zimmer, Bernhard Meyer, Sandro M Krieg
BACKGROUND: Recording of motor evoked potentials (MEPs) is used during navigated transcranial magnetic stimulation (nTMS) motor mapping to locate motor function in the human brain. However, factors potentially underlying MEP latency variability in neurosurgical motor mapping are vastly unknown. In the context of this study, one hundred brain tumor patients underwent preoperative nTMS-based motor mapping of the tumor hemisphere between 2010 and 2013. Fourteen predefined predictor variables were recorded, and MEP latencies of abductor pollicis brevis muscle (APB), abductor digiti minimi muscle (ADM), and flexor carpi radialis muscle (FCR) were analyzed using linear mixed-effect multiple regression analysis with the forward step-wise model comparison approach...
January 3, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28045618/tumor-markers-for-early-diagnosis-for-brain-metastasis-of-hepatocellular-carcinoma-a-case-series-and-literature-review-for-effective-loco-regional-treatment
#15
Kenya Kamimura, Yuji Kobayashi, Yoshifumi Takahashi, Hiroyuki Abe, Daisuke Kumaki, Takeshi Yokoo, Hiroteru Kamimura, Norihiro Sakai, Akira Sakamaki, Satoshi Abe, Masaaki Takamura, Hirokazu Kawai, Satoshi Yamagiwa, Shuji Terai
Intrahepatic lesions of hepatocellular carcinoma (HCC) have been controlled by significant advances in treatment using loco-regional therapies, including, surgery, ablative therapy, catheter-based chemotherapy, and embolization. Consequently, the number of patients with extrahepatic metastatic lesions has increased. Their prognosis remains poor with approximately <1 year of survival from the time of diagnosis. A molecularly targeted drug, sorafenib, have been used to treat extrahepatic lesions and shown the prolonged survival time...
January 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28044936/nano-delivery-in-pediatric-tumors-looking-back-moving-forward
#16
Marta Colletti, Virginia Di Paolo, Angela Galardi, Giuseppe Maria Milano, Angela Mastronuzzi, Franco Locatelli, Angela Di Giannatale
Recent advances in the treatment of pediatric tumors led to an improvement of survival in this population. As a result, many pediatric survivors experience long-term effects that impact their quality of life. Therefore, it is extremely important to identify new treatment approaches that may target the tumor minimizing the drug-related side effects. Over the past 10 years, remarkable advances in nanomedicine have provided several potential tools for cancer treatment. Recently, there has been a growing interest towards therapeutic nanocarriers in the pediatric field, since they represent a new strategy to enhance the drug efficacy and reduce the toxicity...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28042313/efficient-enhancement-of-blood-brain-barrier-permeability-using-acoustic-cluster-therapy-act
#17
Andreas K O Åslund, Sofie Snipstad, Andrew Healey, Svein Kvåle, Sverre H Torp, Per C Sontum, Catharina de Lange Davies, Annemieke van Wamel
The blood-brain barrier (BBB) is a major obstacle in drug delivery for diseases of the brain, and today there is no standardized route to surpass it. One technique to locally and transiently disrupt the BBB, is focused ultrasound in combination with gas-filled microbubbles. However, the microbubbles used are typically developed for ultrasound imaging, not BBB disruption. Here we describe efficient opening of the BBB using the promising novel Acoustic Cluster Therapy (ACT), that recently has been used in combination with Abraxane® to successfully treat subcutaneous tumors of human prostate adenocarcinoma in mice...
2017: Theranostics
https://www.readbyqxmd.com/read/28041673/epilepsy-related-brain-tumors
#18
Özdem Ertürk Çetin, Cihan İşler, Mustafa Uzan, Çiğdem Özkara
Seizures are among the most common presentations of brain tumors. Several tumor types can cause seizures in varying rates; neuroglial tumors and the gliomas are the most common ones. Brain tumors are the second most common cause of focal intractable epilepsy in epilepsy surgery series, with the highest frequency being dysembryoplastic neuroepithelial tumors and gangliogliomas. Seizure management is an important part of the treatment of patients with brain tumors. This review discusses clinical features and management of seizures in patients with brain tumors, including, neuroglial tumors, gliomas, meningioma and metastases; with the help of recent literature data...
December 21, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28030841/vamorolone-a-dissociative-steroidal-compound-reduces-pro-inflammatory-cytokine-expression-in-glioma-cells-and-increases-activity-and-survival-in-a-murine-model-of-cortical-tumor
#19
Elizabeth Wells, Madhuri Kambhampati, Jesse M Damsker, Heather Gordish-Dressman, Sridevi Yadavilli, Oren J Becher, Jamila Gittens, Mojca Stampar, Roger J Packer, Javad Nazarian
Corticosteroids, such as dexamethasone, are routinely used as palliative care in neuro-oncology for their anti-inflammatory benefits, however many patients experience dose limiting side effects caused by glucocorticoid response element (GRE)-mediated transcription. The purpose of this study was to use a murine model to investigate a new steroid alternative, vamorolone, which promises to reduce side effects through dissociating GRE-mediated transcription and NF-κB -mediated anti-inflammatory actions. To compare vamorolone to dexamethasone in reducing pro-inflammatory signals in vitro, murine glioma cells were treated with dexamethasone, vamorolone or vehicle control...
December 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/28025944/targeting-nanomedicine-to-brain-tumors-latest-progress-and-achievements
#20
Moniek van T Root, Clemens Löwik, Laura Mezzanotte
Targeting nanomedicine to brain tumors is hampered by the heterogeneity of brain tumors and the blood brain barrier. These represent the main reasons of unsuccessful treatments. Nanomedicine based approaches hold promise for improved brain tissue distribution of drugs and delivery of combination therapies. In this review, we describe the recent advancements and latest achievements in the use of nanocarriers, virus and cell-derived nanoparticles for targeted therapy of brain tumors.
December 27, 2016: Current Pharmaceutical Design
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