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Brain tumor recurrence

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https://www.readbyqxmd.com/read/29235051/development-of-the-cns-tap-tool-for-the-selection-of-precision-medicine-therapies-in-neuro-oncology
#1
Joseph R Linzey, Bernard L Marini, Amy Pasternak, Cory Smith, Zac Miklja, Lili Zhao, Chandan Kumar-Sinha, Alyssa Paul, Nicholas Harris, Patricia L Robertson, Lindsey M Hoffman, Arul Chinnaiyan, Rajen Mody, Carl Koschmann
The number of targeted therapies utilized in precision medicine are rapidly increasing. Neuro-oncology offers a unique challenge due to the varying blood brain barrier (BBB) penetration of each agent. Neuro-oncologists face a difficult task weighing the growing number of potential targeted therapies and their likelihood of BBB penetration. We developed the CNS TAP Working Group and performed an extensive literature review for the evidence-based creation of the CNS TAP tool, which was retrospectively validated by analyzing brain tumor patients who underwent therapy targeted based on genomic results from an academic sequencing study (MiOncoseq, n = 17) or private molecular profiling (Foundation One, n = 7)...
December 12, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29223793/overexpression-of-g-protein-coupled-receptors-65-in-glioblastoma-predicts-poor-patient-prognosis
#2
Hong-Xiang Wang, Yi-Hong Chen, Jin-Xu Zhou, Xin-Yu Hu, Cong Tan, Yong Yan, Qi-Lin Huang, Jun-Yan Shen, Han-Chong Xu, Feng Li, Zhen-Yu Gong, Tao Xu, Ju-Xiang Chen
OBJECTIVE: G-protein-coupled receptors 65 (GPR65), identified as an acid-sensing receptor, is overexpressed in several malignancies and promote tumor development. Our aim was to investigate the expression and prognostic value of GPR65 in glioblastoma. MATERIALS AND METHODS: We determined the expression of GPR65 protein using immunohistochemistry in tissue microarrays containing 11 Grade I, 107 Grade II, 47 Grade III, and 102 Grade IV gliomas and 16 normal brains...
November 29, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29219779/metastases-of-spinal-myxopapillary-ependymoma-unique-characteristics-and-clinical-management
#3
Theresa Kraetzig, Lily McLaughlin, Mark H Bilsky, Ilya Laufer
OBJECTIVE Myxopapillary ependymoma is a benign WHO Grade I tumor most commonly located in the conus-cauda equina region of the spine. Although this tumor is defined by an overall excellent survival, dissemination throughout the whole neuraxis occurs frequently. The current study evaluated the clinical characteristics and significance of myxopapillary ependymoma metastases. METHODS Patients who underwent surgery from 2005 to 2015 for treatment of spinal myxopapillary ependymoma were included in the study. Charts were reviewed for primary tumor symptoms and initial treatment, local recurrence, response to salvage therapy, and presence and behavior of distant metastases...
December 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29218894/mri-to-mgmt-predicting-methylation-status-in-glioblastoma-patients-using-convolutional-recurrent-neural-networks
#4
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/29218301/long-term-outcomes-after-salvage-stereotactic-radiosurgery-srs-following-in-field-failure-of-initial-srs-for-brain-metastases
#5
Nitesh Rana, Praveen Pendyala, Ryan K Cleary, Guozhen Luo, Zhiguo Zhao, Lola B Chambless, Anthony J Cmelak, Albert Attia, Mark J Stavas
Purpose: The optimal treatment strategy following local recurrence after stereotactic radiosurgery (SRS) remains unclear. While upfront SRS has been extensively studied, few reports focus on outcomes after retreatment. Here, we report the results following a second course of SRS for local recurrence of brain metastases previously treated with SRS. Methods: Using institutional database, patients who received salvage SRS (SRS2) following in-field failure of initial SRS (SRS1) for brain metastases were identified...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29214089/systemic-treatment-of-metastatic-conjunctival-melanoma
#6
Simão Pinto Torres, Teresa André, Emanuel Gouveia, Lívio Costa, Maria José Passos
Conjunctival melanoma (CM) is an exceptionally rare tumor, with a propensity for local and distant recurrence, with the lungs, skin, liver, and brain being the most common sites of metastasis. Recent progress in systemic treatments, with checkpoint inhibitors and targeted therapies blocking BRAF and MEK, has redefined the standard of care of advanced unresectable and metastatic melanoma. Although most trials did not include patients with conjunctival melanoma, its close molecular and genetic relationship to cutaneous melanoma might suggest a similar response to these novel agents...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29212174/melatonin-attenuates-hypoxia-induced-epithelial-mesenchymal-transition-and-cell-aggressive-via-smad7-ccl20-in-glioma
#7
Xueran Chen, Zhen Wang, Huihui Ma, Shangrong Zhang, Haoran Yang, Hongzhi Wang, Zhiyou Fang
Tumor recurrence in gliomas is partly attributed to increased epithelial-mesenchymal transition (EMT) and enhanced tumor cell dissemination in the adjacent brain parenchyma. Thus, exploring effective strategies for against EMT-like changes in glioma invasion and recurrence will be important for glioma treatment. In this study, we investigated the roles of melatonin in hypoxia-induced EMT suppression, and found that melatonin could significantly suppress the release of the cytokine, CCL20, from cancer cells and antagonize glioma cell metastasis and invasion under hypoxic stress in glioma cells...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209782/advances-in-immunotherapeutic-research-for-glioma-therapy
#8
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/29207684/recurrent-glioma-clinical-trial-checkmate-143-the-game-is-not-over-yet
#9
REVIEW
Anna C Filley, Mario Henriquez, Mahua Dey
Glioblastoma (GBM) is the most common, and aggressive, primary brain tumor in adults. With a median patient survival of less than two years, GBM represents one of the biggest therapeutic challenges of the modern era. Even with the best available treatment, recurrence rates are nearly 100% and therapeutic options at the time of relapse are extremely limited. Nivolumab, an anti-programmed cell death-1 (PD-1) monoclonal antibody, has provided significant clinical benefits in the treatment of various advanced cancers and represented a promising therapy for primary and recurrent GBM...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29204198/profile-and-outcome-of-pediatric-brain-tumors-experience-from-a-tertiary-care-pediatric-oncology-unit-in-south-india
#10
Supriya Gujjar Suresh, Arathi Srinivasan, Julius Xavier Scott, Santosh Mohan Rao, Balasubramaniam Chidambaram, Sanjay Chandrasekar
Context: Tumors of the central nervous system (CNS) constitute the second most common pediatric cancers. Unlike leukemia, management of CNS tumors requires a good multidisciplinary team. Higher rates of treatment abandonment are documented in view of complexity of the treatment with long duration, involving neurosurgery, radiation, chemotherapy, and high cost of treatment. Morbidity associated with CNS tumors may be significant in terms of physical deficits as well as neuropsychological and neuroendocrine sequelae...
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29202181/targeted-nanocomplex-carrying-sirna-against-malat1-sensitizes-glioblastoma-to-temozolomide
#11
Sang-Soo Kim, Joe B Harford, Manish Moghe, Antonina Rait, Kathleen F Pirollo, Esther H Chang
Intrinsic therapeutic resistance especially in cancer stem cells (CSCs) together with extensive tumor cell infiltration and restricted permeation of the blood-brain barrier (BBB) by drugs may all contribute to the treatment failure in patients with glioblastoma multiforme (GBM). Accumulating evidence suggests that long non-coding RNA (lncRNA), metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) plays a role in tumor cell infiltration and therapeutic resistance of GBM. Using our tumor-targeted nanocomplex, we have modulated the expression of MALAT1 and investigated its impact on GBM cells...
November 30, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29200112/epidemiology-treatment-and-complications-of-central-nervous-system-metastases
#12
Amy A Pruitt
PURPOSE OF REVIEW: Neurologic problems resulting from systemic cancer metastases to brain parenchyma, dura, spinal cord, and leptomeninges are among the most common types of consultations addressed by neurologists. With patients surviving longer from systemic cancer, along with the rapidly evolving therapeutic options, the treatment of these devastating complications has become both more effective and more complicated. This article reviews current patterns of metastatic disease and the increasingly nuanced landscape of evolving therapies, their complications, and their impact on quality of survival...
December 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29200014/increased-delay-between-gadolinium-chelate-administration-and-t1-weighted-magnetic-resonance-imaging-acquisition-increases-contrast-enhancing-tumor-volumes-and-t1-intensities-in-brain-tumor-patients
#13
Paula L Piechotta, David Bonekamp, Martin Sill, Antje Wick, Wolfgang Wick, Martin Bendszus, Philipp Kickingereder
OBJECTIVES: The aim of this study was to evaluate the impact of delayed T1-weighted (T1-w) MRI acquisition after gadolinium chelate administration on brain tumor volumes and T1-w intensities. MATERIALS AND METHODS: Fifty-five patients with histologically confirmed, contrast-enhancing intra-axial brain tumors were analyzed in this prospective test-retest study. Patients underwent 2 consecutive 3 T MRI scans (separated by a 1-minute break) during routine follow-up with contrast-enhanced T1 (ceT1-w), T2, and FLAIR acquisition...
November 28, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/29198174/intracranial-complications-of-midline-nasal-dermoid-cysts
#14
Dries Opsomer, Toon Allaeys, Ann-Sofie Alderweireldt, Edward Baert, Nathalie Roche
BACKGROUND: Nasal dermoid cysts are common tumors in children. Due to anomalies in embryologic development of the nasal complex, sometimes an intracranial extension exists. When these cysts become infected they can lead to meningitis, brain abscess and death. METHODS: We report the case of a 1.5-year-old girl admitted to the paediatric intensive care unit after infection of a nasal dermoid cyst. RESULTS: The infant had a spiking fever and epileptic seizures...
December 4, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29194500/eano-guidelines-for-the-diagnosis-and-treatment-of-ependymal-tumors
#15
Roberta Rudà, Guido Reifenberger, Didier Frappaz, Stefan M Pfister, Anne Laprie, Thomas Santarius, Patrick Roth, Joerg Christian Tonn, Riccardo Soffietti, Michael Weller, Elizabeth Cohen-Jonathan Moyal
Ependymal tumors are rare CNS tumors and may occur at any age, but their proportion among primary brain tumors is highest in children and young adults. Thus, the level of evidence of diagnostic and therapeutic interventions is higher in the pediatric compared with the adult patient population.The diagnosis and disease staging is performed by craniospinal MRI. Tumor classification is achieved by histological and molecular diagnostic assessment of tissue specimens according to the World Health Organization (WHO) classification 2016...
November 29, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29192634/the-pattern-of-significant-lesions-found-in-computerized-tomography-scan-of-recurrent-seizure-patients-at-a-center-in-enugu-nigeria
#16
A B Ezeala-Adikaibe, S C Ohaegbulam, C A Ndubuisi
INTRODUCTION: Seizures are common reasons for neurologic consultations and investigations. In the absence of magnetic resonance imaging, computerized tomography scanning of the brain is a reliable and cheaper alternative. Little is known about the pattern of brain lesions in patients with recurrent seizures in Nigeria. OBJECTIVES: To determine the pattern of significant intracerebral lesions in patients presenting with recurrent seizures in a tertiary hospital in Enugu...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29188530/histopathological-vascular-investigation-of-the-peritumoral-brain-zone-of-glioblastomas
#17
Ryota Tamura, Kentaro Ohara, Hikaru Sasaki, Yukina Morimoto, Kazunari Yoshida, Masahiro Toda
To date, no histopathological vascular investigation focusing on peritumoral brain zone (PBZ) has been reported for glioblastoma. We analyzed 10 newly diagnosed cases of glioblastomas. For these PBZs, histopathological investigation was performed by hematoxylin-eosin (H&E) staining and immunohistochemistry was analyzed for CD31, CD34, Factor VIII, VEGF, VEGFR-1/2, Ki67, p53 and nestin. Although it was difficult to identify PBZ by H&E, Ki67 and p53 staining, there were apparent differences in nestin staining among PBZ, tumor core (TC), and normal zone (NZ)...
November 29, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29188206/genomic-and-molecular-characterization-of-brain-tumors-in-asian-and-non-asian-patients-of-los-angeles-a-single-institution-analysis
#18
Courtney Duong, Thien Nguyen, John P Sheppard, Vera Ong, Lawrance K Chung, Daniel T Nagasawa, Isaac Yang
Background: Worldwide, approximately 2% of new cancers are of the brain. Five-year survival rates among brain cancer patients have been reported as a little over a third. Differences in clinical outcomes between brain tumor patients of different races remain poorly understood. Methods: A retrospective chart review was performed on brain tumor resection patients≥18 years old. Demographics, treatment variables, and survival outcomes were collected. Primary outcomes were length of stay, recurrence rate, progression-free survival (PFS), and overall survival (OS)...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29175723/brain-tumors-associated-with-psychogenic-non-epileptic-seizures-case-series
#19
Catherine R Garcia, Gulam Q Khan, Amy M Morrow, Priyanka Yadav, Donita D Lightner, Frank G Gilliam, John L Villano
OBJECTIVE: The association of psychogenic non-epileptic seizures (PNES) with primary or secondary brain tumors has not been well described in the literature. We aim to discuss their association, and their impact in brain tumor treatment. PATIENTS AND METHODS: We identified four patients retrospectively from our practice. The diagnosis of PNES was based on clinical suspicion and standard EEG, supplemented with video-EEG recording in 2 patients. RESULTS: The initial diagnosis of brain tumor was associated with a new onset seizure prior to diagnosis...
November 22, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29174343/tim-3-expression-predicts-the-abnormal-innate-immune-status-and-poor-prognosis-of-glioma-patients
#20
Xueen Li, Bo Wang, Lintao Gu, Lifen Gao, Chunhong Ma, Xiaohong Liang, Xingang Li
Malignant glioma, the most common and devastating primary brain tumor, has serious effects on human health with high risk of recurrence and short survival periods. Recently, the exploitation of immunological mechanisms shed new lights for developing novel therapeutic strategies for glioma pathogenesis. Tim-3, a member of T cell immunoglobulin and mucin domain family, has been involved in multiple diseases, including tumor, by regulating the viability and function of immunocytes. In the present study, we detected Tim-3 expression on peripheral innate immunocytes from glioma patients and analyzed their correlation with clinical indices...
November 21, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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