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Brain tumor chemotherapy

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https://www.readbyqxmd.com/read/27924163/highly-effective-auger-electron-therapy-in-an-orthotopic-glioblastoma-xenograft-model-using-convection-enhanced-delivery
#1
Helge Thisgaard, Bo Halle, Charlotte Aaberg-Jessen, Birgitte Brinkmann Olsen, Anne Sofie Nautrup Therkelsen, Johan Hygum Dam, Niels Langkjær, Sune Munthe, Kjell Någren, Poul Flemming Høilund-Carlsen, Bjarne Winther Kristensen
Glioblastoma, the most common and malignant primary brain tumor, always recurs after standard treatment. Therefore, promising new therapeutic approaches are needed. Short-range Auger-electron-emitters carry the ability of causing highly damaging radiation effects in cells. The aim of this study was to test the effect of [(125)I]5-Iodo-2'-deoxyuridine ((125)I-UdR, a radioactive Auger-electron-emitting thymidine analogue) Auger-therapy on immature glioblastoma spheroid cultures and orthotopic xenografted glioblastoma-bearing rats, the latter by means of convection-enhanced delivery (CED)...
2016: Theranostics
https://www.readbyqxmd.com/read/27923908/estrogen-activation-of-microglia-underlies-the-sexually-dimorphic-differences-in-nf1-optic-glioma-induced-retinal-pathology
#2
Joseph A Toonen, Anne C Solga, Yu Ma, David H Gutmann
Children with neurofibromatosis type 1 (NF1) develop low-grade brain tumors throughout the optic pathway. Nearly 50% of children with optic pathway gliomas (OPGs) experience visual impairment, and few regain their vision after chemotherapy. Recent studies have revealed that girls with optic nerve gliomas are five times more likely to lose vision and require treatment than boys. To determine the mechanism underlying this sexually dimorphic difference in clinical outcome, we leveraged Nf1 optic glioma (Nf1-OPG) mice...
December 6, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27923226/intraoperative-tumoral-bleeding-of-hypervascular-medulloblastoma-after-ventricular-drainage-a-case-report
#3
Han-Seung Ryu, Tae-Young Jung, Moon-Soo Han, Seul-Ki Kim, Kyung-Hwa Lee
We report a rare case of intraoperative tumoral bleeding of a hypervascular medulloblastoma. A 12-year-old girl presented with dizziness and nausea. Brain magnetic resonance (MR) images revealed an approximately 4.2-cm enhanced mass on the cerebellar vermis associated with mild perilesional edema and increased cerebral blood volume. Angiography showed tumoral staining and developed occipital and circular dural sinuses in the venous phase. A suboccipital craniotomy was performed. To relieve the intracranial pressure, cerebrospinal fluid (CSF) was drained via a lateral ventricular catheter in the occipital horn...
December 7, 2016: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27921213/pediatric-intracranial-primary-anaplastic-ganglioglioma
#4
Wolf Lüdemann, Rouzbeh Banan, Christian Hartmann, Helmut Bertalanffy, Concezio Di Rocco
BACKGROUND: Primary intracranial anaplastic gangliogliomas are rare tumors in the pediatric patient group. Most of them present with symptoms of elevated pressure or symptomatic epilepsy. Extraaxial location is far more common than axial location. On MRI examination, they mimic pilocytic astrocytomas. The outcome after surgery depends mainly on the possible amount of surgical resection, and oncological therapy is necessary to prevent recurrence of the disease. CASE REPORT: An 11-year-old boy presented with headache and double vision due to obstructive hydrocephalus...
December 5, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27920506/polifeprosan-20-3-85-carmustine-slow-release-wafer-in-malignant-glioma-patient-selection-and-perspectives-on-a-low-burden-therapy
#5
REVIEW
Lawrence Kleinberg
Polifeprosan 20 with carmustine (GLIADEL(®)) polymer implant wafer is a biodegradable compound containing 3.85% carmustine (BCNU, bischloroethylnitrosourea) implanted in the brain at the time of planned tumor surgery, which then slowly degrades to release the BCNU chemotherapy directly into the brain thereby bypassing the blood-brain barrier. Carmustine implant wafers were demonstrated to improve survival in randomized placebo-controlled trials in patients undergoing a near total resection of newly diagnosed or recurrent malignant glioma...
2016: Patient Preference and Adherence
https://www.readbyqxmd.com/read/27917791/investigation-of-the-expression-of-rif1-gene-on-head-and-neck-pancreatic-and-brain-cancer-and-cancer-stem-cells
#6
Hacer E GursesCila, Muradiye Acar, Furkan B Barut, Mehmet Gunduz, Reidar Grenman, Esra Gunduz
PURPOSE: Recent studies have shown that cancer stem cells are resistant to chemotherapy. The aim of this study was to compare RIF1 gene expression in head and neck, pancreatic cancer and glioma cell lines and the cancer stem cells isolated from these cell lines. METHODS: UT-SCC-74 from Turku University and UT-SCC-74B primary tumor metastasis and neck cancer cell lines, YKG-1 glioma cancer cell line from RIKEN, pancreatic cancer cell lines and ASPC-1 cells from ATCC were grown in cell culture...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27917404/the-emerging-role-of-cdk5-in-cancer
#7
Karine Pozo, James A Bibb
Cdk5 is an atypical cyclin-dependent kinase that is well characterized for its role in the central nervous system rather than in the cell cycle. However Cdk5 has been recently implicated in the development and progression of a variety of cancers including breast, lung, colon, pancreatic, melanoma, thyroid and brain tumors. This broad pro-tumorigenic role makes Cdk5 a promising drug target for the development of new cancer therapies. Here we review the contribution of Cdk5 to molecular mechanisms that confer upon tumors the ability to grow, proliferate and disseminate to secondary organs, as well as resistance to chemotherapies...
October 2016: Trends in Cancer
https://www.readbyqxmd.com/read/27916824/graphene-oxide-nanoribbons-induce-autophagic-vacuoles-in-neuroblastoma-cell-lines
#8
Emanuela Mari, Stefania Mardente, Emanuela Morgante, Marco Tafani, Emanuela Lococo, Flavia Fico, Federica Valentini, Alessandra Zicari
Since graphene nanoparticles are attracting increasing interest in relation to medical applications, it is important to understand their potential effects on humans. In the present study, we prepared graphene oxide (GO) nanoribbons by oxidative unzipping of single-wall carbon nanotubes (SWCNTs) and analyzed their toxicity in two human neuroblastoma cell lines. Neuroblastoma is the most common solid neoplasia in children. The hallmark of these tumors is the high number of different clinical variables, ranging from highly metastatic, rapid progression and resistance to therapy to spontaneous regression or change into benign ganglioneuromas...
November 29, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27911279/microrna-101-inhibits-proliferation-migration-and-invasion-of-human-glioblastoma-by-targeting-sox9
#9
Nan Liu, Lei Zhang, Zhen Wang, Yingduan Cheng, Pengxing Zhang, Xin Wang, Weihong Wen, Hongwei Yang, Hui Liu, Weilin Jin, Yongsheng Zhang, Yanyang Tu
Glioblastoma multiforme (GBM) is the most common primary malignant tumors originating in the brain parenchyma. At present, GBM patients have a poor prognosis despite the continuous progress in therapeutic technologies including surgery, radiotherapy, photodynamic therapy, and chemotherapy. Recent studies revealed that miR-101 was remarkably down-regulated in kinds of human cancers and was associated with aggressive tumor cell proliferation and stem cell self-renewal. Data also showed that miR-101 was down-regulated in primary glioma samples and cell lines, but the underlying molecular mechanism of the deregulation of miR-101 in glioma remained largely unknown...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27909286/three-cases-of-levodopa-resistant-parkinsonism-after-radiation-therapy
#10
Raja Mehanna, Joohi Jimenez-Shahed, Ilia Itin
BACKGROUND Unequivocal brain radiation-induced parkinsonism has so far been reported in only in two pediatric patients. However, with the rising incidence rates for brain tumors in industrialized countries and the consequential increased exposure to cranial radiotherapy, clinicians might become more exposed to this entity. CASE REPORT Three patients were treated for intraparenchymal brain tumor with resection, chemotherapy, and whole brain radiation. One patient developed leukoencephalopathy and parkinsonism within one year of treatment, one developed it seven years after treatment completion, and one developed dementia, parkinsonism and cerebral infracts 40 years after whole brain radiation...
December 2, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27903197/upfront-boost-gamma-knife-leading-edge-radiosurgery-to-flair-mri-defined-tumor-migration-pathways-in-174-patients-with-glioblastoma-multiforme-a-15-year-assessment-of-a-novel-therapy
#11
Christopher M Duma, Brian S Kim, Peter V Chen, Marianne E Plunkett, Ralph Mackintosh, Marlon S Mathews, Ryan M Casserly, Gustavo A Mendez, Daniel J Furman, Garrett Smith, Nathan Oh, Chad A Caraway, Ami R Sanathara, Robert O Dillman, Azzurra-Sky Riley, David Weiland, Lian Stemler, Ruslana Cannell, Daniela Alexandru Abrams, Alexa Smith, Christopher M Owen, Burton Eisenberg, Michael Brant-Zawadzki
OBJECTIVE Glioblastoma multiforme (GBM) is composed of cells that migrate through the brain along predictable white matter pathways. Targeting white matter pathways adjacent to, and leading away from, the original contrast-enhancing tumor site (termed leading-edge radiosurgery [LERS]) with single-fraction stereotactic radiosurgery as a boost to standard therapy could limit the spread of glioma cells and improve clinical outcomes. METHODS Between December 2000 and May 2016, after an initial diagnosis of GBM and prior to or during standard radiation therapy and carmustine or temozolomide chemotherapy, 174 patients treated with radiosurgery to the leading edge (LE) of tumor cell migration were reviewed...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27903179/gamma-knife-radiosurgery-for-brain-metastases-from-pulmonary-large-cell-neuroendocrine-carcinoma-a-japanese-multi-institutional-cooperative-study-jlgk1401
#12
Takuya Kawabe, Masaaki Yamamoto, Yasunori Sato, Shoji Yomo, Takeshi Kondoh, Osamu Nagano, Toru Serizawa, Takahiko Tsugawa, Hisayo Okamoto, Atsuya Akabane, Kazuyasu Aita, Manabu Sato, Hidefumi Jokura, Jun Kawagishi, Takashi Shuto, Hideya Kawai, Akihito Moriki, Hiroyuki Kenai, Yoshiyasu Iwai, Masazumi Gondo, Toshinori Hasegawa, Soichiro Yasuda, Yasuhiro Kikuchi, Yasushi Nagatomo, Shinya Watanabe, Naoya Hashimoto
OBJECTIVE In 1999, the World Health Organization categorized large cell neuroendocrine carcinoma (LCNEC) of the lung as a variant of large cell carcinoma, and LCNEC now accounts for 3% of all lung cancers. Although LCNEC is categorized among the non-small cell lung cancers, its biological behavior has recently been suggested to be very similar to that of a small cell pulmonary malignancy. The clinical outcome for patients with LCNEC is generally poor, and the optimal treatment for this malignancy has not yet been established...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27899882/tumor-metabolism-the-ketogenic-diet-and-%C3%AE-hydroxybutyrate-novel-approaches-to-adjuvant-brain-tumor-therapy
#13
REVIEW
Eric C Woolf, Nelofer Syed, Adrienne C Scheck
Malignant brain tumors are devastating despite aggressive treatments such as surgical resection, chemotherapy and radiation therapy. The average life expectancy of patients with newly diagnosed glioblastoma is approximately ~18 months. It is clear that increased survival of brain tumor patients requires the design of new therapeutic modalities, especially those that enhance currently available treatments and/or limit tumor growth. One novel therapeutic arena is the metabolic dysregulation that results in an increased need for glucose in tumor cells...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27899786/-a-case-of-an-abdominal-desmoplastic-small-round-cell-tumor-with-metastasis-in-the-medulla-oblongata
#14
Ayaka Azami, Yoshinao Takano, Michitaka Honda, Yukitoshi Todate, Takeshi Tada, Mitsuru Waragai, Daizo Fukushima, Nobuyasu Suzuki, Atai Sato, Tsuyoshi Abe, Yasushi Teranishi, Hideo Sakuma
A desmoplastic small round cell tumor(DSRCT)is a very rare malignant tumor that mainly occurs in the intra-abdominal cavity in young adults.This neoplasm has an extremely poor prognosis, with a clinical course characterized by rapid progression and metastasis.We present a 31-year-old man who presented with chief complaints of dysphagia, ataxic gait, and hoarseness.He first underwent surgical resection of a tumor in the medulla oblongata; however, the lesion was suspected to be a metastatic neoplasm.Following a thorough medical examination, the patient was diagnosed with retroperitoneal DSRCT with multiple metastatic lesions...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27891292/cancer-stem-cells-cellular-plasticity-niche-and-its-clinical-relevance
#15
Gina Lee, Robert R Hall, Atique U Ahmed
Cancer handles an estimated 7.6 million deaths worldwide per annum. A recent theory focuses on the role Cancer Stem Cells (CSCs) in driving tumorigenesis and disease progression. This theory hypothesizes that a population of the tumor cell with similar functional and phenotypic characteristics as normal tissue stem cells are responsible for formation and advancement of many human cancers. The CSCs subpopulation can differentiate into non-CSC tumor cells and promote phenotypic and functional heterogeneity within the tumor...
October 2016: Journal of Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27889247/cutaneous-invasive-aspergillosis-in-a-patient-with-glioblastoma-receiving-long-term-temozolomide-and-corticosteroid-therapy
#16
Takashi Ikeda, Jun Suzuki, Masataro Norizuki, Taro Okabe, Tsubasa Onishi, Teppei Sasahara, Masaki Toshima, Hidenori Yokota, Shuji Hatakeyama, Yuji Morisawa
Glioblastoma is an aggressive brain tumor that requires multidisciplinary treatment including adjuvant radiotherapy, chemotherapy, and adjunct corticosteroids. Temozolomide is a commonly used chemotherapy drug and frequently causes lymphocytopenia. We describe the case of a 67-year-old woman with cutaneous invasive aspergillosis who had received long-term temozolomide and corticosteroid therapy for glioblastoma. She presented with multiple indurations, erythema, and purpura, some of which produced purulent discharge, in the anterior abdomen...
November 23, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27888882/the-challenge-of-primary-central-nervous-system-lymphoma
#17
REVIEW
Julia Carnevale, James L Rubenstein
Primary central nervous system (CNS) lymphoma is a challenging subtypes of aggressive non-Hodgkin lymphoma. Emerging clinical data suggest that optimized outcomes are achieved with dose-intensive CNS-penetrant chemotherapy and avoiding whole brain radiotherapy. Anti-CD20 antibody-based immunotherapy as a component of high-dose methotrexate-based induction programs may contribute to improved outcomes. An accumulation of insights into the molecular and cellular basis of disease pathogenesis is providing a foundation for the generation of molecular tools to facilitate diagnosis as well as a roadmap for integration of targeted therapy within the developing therapeutic armamentarium for this challenging brain tumor...
December 2016: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/27886461/biomaterial-based-implantable-devices-for-cancer-therapy
#18
Sue Anne Chew, Serena Danti
This review article focuses on the current local therapies mediated by implanted macroscaled biomaterials available or proposed for fighting cancer and also highlights the upcoming research in this field. Several authoritative review articles have collected and discussed the state-of-the-art as well as the advancements in using biomaterial-based micro- and nano-particle systems for drug delivery in cancer therapy. On the other hand, implantable biomaterial devices are emerging as highly versatile therapeutic platforms, which deserve an increased attention by the healthcare scientific community, as they are able to offer innovative, more effective and creative strategies against tumors...
November 25, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27885632/glutamine-metabolism-in-gliomas
#19
Monika Szeliga, Jan Albrecht
By histological, morphological criteria, and malignancy, brain tumors are classified by WHO into grades I (most benign) to IV (highly malignant), and gliomas are the most frequently occurring class throughout the grades. Similar to peripheral tumors, the growth of glia-derived tumor cells largely depends on glutamine (Gln), which is vividly taken up by the cells, using mostly ASCT2 and SN1 as Gln carriers. Tumor growth-promoting effects of Gln are associated with its phosphate-activated glutaminase (GA) (specifically KGA)-mediated degradation to glutamate (Glu) and/or with its entry to the energy- and intermediate metabolite-generating pathways related to the tricarboxylic acid cycle...
2016: Advances in Neurobiology
https://www.readbyqxmd.com/read/27879538/efficacy-of-ifosfamide-cisplatin-etoposide-ice-chemotherapy-for-a-cns-germinoma-in-a-child-with-down-syndrome
#20
Seishiro Nodomi, Katsutsugu Umeda, Hiroo Ueno, Satoshi Saida, Hidefumi Hiramatsu, Takeshi Funaki, Yoshiki Arakawa, Takashi Mizowaki, Souichi Adachi, Toshio Heike
Intracranial germ cell tumor is sometimes associated with Down syndrome; however, no optimal treatment has been developed due to the high risk of recurrence and treatment-related mortality. Here, we report on a patient with an intracranial germinoma in the bilateral basal ganglia. The patient received 3 courses of ifosfamide-cisplatin-etoposide in combination with whole-brain irradiation (24 Gy), with no serious complications. The patient is alive and disease free 16 months after the initial diagnosis. This regimen is a feasible treatment for intracranial germ cell tumor associated with Down syndrome, although careful attention must be paid to the increased risk for severe infection...
November 22, 2016: Journal of Pediatric Hematology/oncology
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