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https://www.readbyqxmd.com/read/29667271/syndrome-and-outcome-of-antibody-negative-limbic-encephalitis
#1
Francesc Graus, Domingo Escudero, Laura Oleaga, Jordi Bruna, Alberto Villarejo-Galende, Jordi Ballabriga, María Inés Barceló, Francisco Gilo, Stoyan Popkirov, Pavel Stourac, Josep Dalmau
OBJECTIVE: To report the clinical characteristics of 12 patients with limbic encephalitis (LE) who were antibody-negative after a comprehensive immunological study. METHODS: Review of clinical records of 163 patients with LE. Immunohistochemistry on rat brain, cultured neurons, and cell-based assays were used to identify neuronal autoantibodies. Patients were included if 1) there was adequate clinical, CSF, and MRI information to classify the syndrome as LE, 2) MRI images were accesible for central review, and 3) serum and CSF were available and confirmed negative for neuronal antibodies...
April 18, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29667174/impact-of-prior-cancer-history-on-the-overall-survival-of-patients-newly-diagnosed-with-cancer-a-pan-cancer-analysis-of-the-seer-database
#2
Huaqiang Zhou, Yan Huang, Zeting Qiu, Hongyun Zhao, Wenfeng Fang, Yunpeng Yang, Yuanyuan Zhao, Xue Hou, Yuxiang Ma, Shaodong Hong, Ting Zhou, Yaxiong Zhang, Li Zhang
The population of cancer survivors with prior cancer is rapidly growing. Whether a prior cancer diagnosis interferes with outcome is unknown. We conducted a pan-cancer analysis to determine the impact of prior cancer history for patients newly diagnosed with cancer. We identified 20 types of primary solid tumors between 2004 to 2008 in the Surveillance, Epidemiology, and End Results (SEER) database. Demographic and clinicopathologic variables were compared by chi-squared test and t-test as appropriate. The propensity score-adjusted Kaplan-Meier method and Cox proportional hazards models were used to evaluate the impact of prior cancer on overall survival (OS)...
April 18, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29667084/investigation-of-the-aryl-hydrocarbon-receptor-and-the-intrinsic-tumoral-component-of-the-kynurenine-pathway-of-tryptophan-metabolism-in-primary-brain-tumors
#3
Anthony R Guastella, Sharon K Michelhaugh, Neil V Klinger, Hassan A Fadel, Sam Kiousis, Rouba Ali-Fehmi, William J Kupsky, Csaba Juhász, Sandeep Mittal
INTRODUCTION: There is mounting evidence supporting the role of tryptophan metabolism via the kynurenine pathway (KP) in the pathogenesis of primary brain tumors. Under normal physiological conditions, the KP is the major catabolic pathway for the essential amino acid tryptophan. However, in cancer cells, the KP becomes dysregulated, depletes local tryptophan, and contributes to an immunosuppressive tumor microenvironment. METHODS: We examined the protein expression levels (in 73 gliomas and 48 meningiomas) of the KP rate-limiting enzymes indoleamine 2,3-dioxygenase (IDO) 1, IDO2, and tryptophan 2,3-dioxygenase (TDO2), as well as, the aryl hydrocarbon receptor (AhR), a carcinogenic transcription factor activated by KP metabolites...
April 17, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29666296/phase-ii-study-to-evaluate-the-efficacy-and-safety-of-rilotumumab-and-bevacizumab-in-subjects-with-recurrent-malignant-glioma
#4
Mary Lou Affronti, Jennifer Gamboa Jackman, Frances McSherry, James E Herndon, Elwood C Massey, Eric Lipp, Annick Desjardins, Henry S Friedman, Gordana Vlahovic, James Vredenburgh, Katherine B Peters
LESSONS LEARNED: Due to evolving imaging criteria in brain tumors and variation in magnetic resonance imaging evaluation, it is not ideal to use response rate as a primary objective. Future studies involving antiangiogenic agents should use overall survival.Disease-expected toxicities should be considered when defining the clinical significance of an adverse event. For example, vascular thromboembolic events are common in brain tumor patients and should not be attributed to the study drug in the safety analysis...
April 17, 2018: Oncologist
https://www.readbyqxmd.com/read/29665032/testicular-choriocarcinoma-with-cutaneous-metastasis-in-a-19-year-old-man
#5
Ferdinand Toberer, Alexander Enk, Wolfgang Hartschuh, Carsten Grüllich
A 19-year-old man suffering from testicular choriocarcinoma presented to the dermatology department with a cutaneous metastasis on his head. This metastasis was the first sign of disease that led to medical consultation. Histopathology revealed cytotrophoblasts and syncytiotrophoblasts, the later expressing human chorionic gonadotropin antigen. Whole body computed tomography showed multiple metastases of the brain, lung, liver, bone, paraaortic lymph nodes and left uvea, the primary was found in the left testicle...
April 17, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29663604/primary-extracranial-nasopharyngeal-meningioma-in-a-dog
#6
Emilie Fauchon, Jean-Charles Husson, Juan Hernandez, Eymeric Gomes
An 8-year-old Labrador Retriever was presented for inspiratory efforts with stertor. A rhinoscopy and a magnetic resonance imaging scan were performed and revealed a naso-pharyngeal mass. The mass was identified in the nasopharynx without meningeal extension. This mass was both T1- and T2-hyperintense, compared to normal brain parenchyma without significant postcontrast enhancement. The mass was surgically removed and the histologic diagnosis was a mesenchymal tumor. Immunohistochemistry with antibodies was conducted and consistent with an extracranial meningioma...
April 16, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29662659/idh1-mutation-is-associated-with-lower-expression-of-vegf-but-not-microvessel-formation-in-glioblastoma-multiforme
#7
Jiří Polívka, Martin Pešta, Pavel Pitule, Ondřej Hes, Luboš Holubec, Jiří Polívka, Tereza Kubíková, Zbyněk Tonar
Introduction: Glioblastoma multiforme (GBM) represents the most malignant primary brain tumor characterized by pathological vascularization. Mutations in isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2) were observed in GBM. We aimed to assess the intra-tumor hypoxia, angiogenesis and microvessel formation in GBM and to find their associations with IDH1 mutation status and patients prognosis. Methods: 52 patients with a diagnosis of GBM were included into the study...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662628/a-gene-expression-signature-predicts-recurrence-free-survival-in-meningioma
#8
Adriana Olar, Lindsey D Goodman, Khalida M Wani, Nicholas S Boehling, Devi S Sharma, Reema R Mody, Joy Gumin, Elizabeth B Claus, Frederick F Lang, Timothy F Cloughesy, Albert Lai, Kenneth D Aldape, Franco DeMonte, Erik P Sulman
BACKGROUND: Meningioma is the most common primary brain tumor and has a variable risk of local recurrence. While World Health Organization (WHO) grade generally correlates with recurrence, there is substantial within-grade variation of recurrence risk. Current risk stratification does not accurately predict which patients are likely to benefit from adjuvant radiation therapy (RT). We hypothesized that tumors at risk for recurrence have unique gene expression profiles (GEP) that could better select patients for adjuvant RT...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29660031/meningioma-transcription-factors-link-cell-lineage-with-systemic-metabolic-cues
#9
Ziming Du, Ryan Brewster, Parker H Merrill, Juliann Chmielecki, Josh Francis, Ayal Aizer, Malak Abedalthagafi, Lynette M Sholl, Lars Geffers, Brian Alexander, Sandro Santagata
Background: Tumor cells recapitulate cell-lineage transcriptional programs that are characteristic of normal tissues from which they arise. It is unclear why such lineage programs are fatefully maintained in tumors and if they contribute to cell proliferation and viability. Methods: Here, we used the most common brain tumor, meningioma, which is strongly associated with female gender and high body mass index (BMI), as a model system to address these questions. We screened expression profiling data to identify the transcription factor (TF) genes which are highly enriched in meningioma, and characterized the expression pattern of those TFs and downstream genes in clinical meningioma samples as well as normal brain tissues...
April 12, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29660026/familial-syndromes-involving-meningiomas-provide-mechanistic-insight-into-sporadic-disease
#10
Keith Kerr, Krista Qualmann, Yoshua Esquenazi, John Hagan, Dong H Kim
Currently, there is an incomplete understanding of the molecular pathogenesis of meningiomas, the most common primary brain tumor. Several familial syndromes are characterized by increased meningioma risk, and the genetics of these syndromes provides mechanistic insight into sporadic disease. The best defined of these syndromes is neurofibromatosis type 2, which is caused by a mutation in the NF2 gene and has a meningioma incidence of approximately 50%. This finding led to the subsequent discovery that NF2 loss-of-function occurs in up to 60% of sporadic tumors...
April 11, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29655792/long-non-coding-rna-uca1-mir-182-pfkfb2-axis-modulates-glioblastoma-associated-stromal-cells-mediated-glycolysis-and-invasion-of-glioma-cells
#11
Zongze He, Chao You, Dongdong Zhao
Glioblastoma (GB) is the most common and deadliest malignant primary brain tumor with a high recurrence. In this study, lncRNA UCA1/miR-182 axis has been regarded as a nodal driver of glioma invasion mediated by GB-associated stromal cells (GASCs) and GASC-secreted chemokine CXCL14. In clinical specimens, CXCL14 upregulation in GASCs also correlated with poor prognosis. Notably, CXCL14-high GASCs mediated lncRNA UCA1 upregulation and miR-182 downregulation in glioma cells. Moreover, miR-182 directly bound to the fructose-2,6-biphosphatase PFKFB2; UCA1/miR-182 axis thereby modulated GASC-induced glycolysis in glioma cells...
April 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29651966/specific-cytostatic-and-cytotoxic-effect-of-dihydrochelerythrine-in-glioblastoma-cells-role-of-nf-kb-b-catenin-and-stat3-il-6-pathways
#12
Tereza Cristina Costa Silva, Noelio de Jesus Menezes-Filho, Giselle Pinto de Faria Lopes, Diego Madureira de Oliveira, Ezequiel Pereira, Bruno Penas Seara Pitanga, Eudes S Velozo, Songeli Menezes Freire, Jorge Clarencio de Souza Andrade, Helena Lobo Borges, Stevens Kastrup Rehen, Vivaldo Moura-Neto, Silvia Lima Costa
A glioblastoma is a primary CNS tumor that is more aggressive and lethal than other brain tumors. Its location, rapid proliferation, invasive growth, angiogenesis and immunosuppression are the main factors that limit its treatment, making it a major challenge to neuro-oncology. OBJECTIVE: This study investigated the in vitro effects of the alkaloid dihydrochelerythrine (DHC), which is extracted from Zanthoxylum stelligerum, on the viability, proliferation, cell death and b-catenin, NFkB, STAT3/pSTAT3 and interleukins roles...
April 12, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29650822/-a-case-of-poorly-differentiated-carcinoma-of-unknown-primary-site-with-risk-of-choriocarcinoma-syndrome-effectively-treated-with-reduced-bleomycin-cisplatin-etoposide-combination-regimen-bep-regimen
#13
Motohiko Okano, Hiroyasu Oda, Mikiya Ishihara, Satoshi Tamaru, Kanako Saito, Yoshiki Yamashita, Toshiro Mizuno, Naoyuki Katayama
A 64-year-old man visited his physician complaining of bilateral gynecomastia and left shoulder pain. Chest X-ray showed multiple bilateral masses in the lung, and he was referred to our hospital. Radiographical findings, elevation of serum total hCG, and histological findings of the cervical lymph node revealed multiple pulmonary, nodal, and brain metastases of poorly differentiated carcinoma of an unknown primary site with choriocarcinoma components. He was administered a regimen of reduced bleomycin, cisplatin, etoposide combination(reduced BEP regimen)to reduce the risk of acute respiratory failure with intra-alveolar hemorrhage related to post-chemotherapy early tumor necrosis...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29649428/connections-of-annexin-a1-and-translocator-protein-18-kda-on-toll-like-receptor-stimulated-bv-2-cells
#14
Lorena Pantaleão, Gustavo Henrique Oliveira da Rocha, Chris Reutelingsperger, Manoela Tiago, Silvya Stucchi Maria-Engler, Egle Solito, Sandra P Farsky
BACKGROUND: Annexin A1 (ANXA1) and Translocator Protein-18KDa (TSPO) down-regulate neuroinflammation. We investigated the role of recombinant ANXA1 (rANXA) on TSPO functions on Toll Like Receptor (TLR) activated microglia. METHODS: BV-2 cells (murine microglia), were stimulated by E. coli Lipopolysaccharide (LPS) and treated with rANXA1 in order to measure TSPO expression and inflammatory parameters. Anti-sense ANXA1 and TLR4 and TSPO shRNA, as well as pharmacological treatments, were employed to assess the mechanisms involved...
April 9, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29644485/acceptance-and-compliance-of-ttfields-treatment-among-high-grade-glioma-patients
#15
Julia Onken, Franziska Staub-Bartelt, Peter Vajkoczy, Martin Misch
BACKGROUND: Tumor treating fields (TTFields) significantly prolong both progression-free and overall survival in patients with newly diagnosed glioblastoma (GBM). TTFields are delivered to the brain tumor via skin transducer arrays and should be applied for a minimum of 18 h per day (≥ 75% compliance). This may cause limited acceptance by patients because of obstacles in daily routine. So far, there are limited data on factors influencing therapy acceptance and compliance. METHODS: In this retrospective study, fourty-one patients with primary GBM or recurrent high grade glioma (rHGG) have been treated with TTFields in our department...
April 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29644471/assessment-of-psychological-distress-among-asian-adolescents-and-young-adults-aya-cancer-patients-using-the-distress-thermometer-a-prospective-longitudinal-study
#16
Alexandre Chan, Eileen Poon, Wei Lin Goh, Yanxiang Gan, Chia Jie Tan, Kelvin Yeo, Annabelle Chua, Magdalene Chee, Yi Chye Law, Nagavalli Somasundaram, Ravindran Kanesvaran, Quan Sing Ng, Chee Kian Tham, Chee Keong Toh, Soon Thye Lim, Miriam Tao, Tiffany Tang, Richard Quek, Mohamad Farid
PURPOSE: Since few studies have investigated whether the Distress Thermometer (DT) in Asian adolescent and young adult (AYA) cancer patients (between 15 and 39 years), we investigated the appropriateness of the DT as a screening tool for psychological symptom burden in these AYA patients and to evaluate AYA patients' distress across a trajectory of three time points longitudinally over a 6-month period. METHODS: This was a prospective, longitudinal study. Recruited Asian AYA patients were diagnosed with lymphomas, sarcomas, primary brain malignancies, or germ cell tumors...
April 11, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29644006/the-long-non-coding-rna-hotair-is-transcriptionally-activated-by-hoxa9-and-is-an-independent-prognostic-marker-in-patients-with-malignant-glioma
#17
Ana Xavier-Magalhães, Céline S Gonçalves, Anne Fogli, Tatiana Lourenço, Marta Pojo, Bruno Pereira, Miguel Rocha, Maria Celeste Lopes, Inês Crespo, Olinda Rebelo, Herminio Tão, João Lima, Ricardo Moreira, Afonso A Pinto, Chris Jones, Rui M Reis, Joseph F Costello, Philippe Arnaud, Nuno Sousa, Bruno M Costa
The lncRNA HOTAIR has been implicated in several human cancers. Here, we evaluated the molecular alterations and upstream regulatory mechanisms of HOTAIR in glioma, the most common primary brain tumors, and its clinical relevance. HOTAIR gene expression, methylation, copy-number and prognostic value were investigated in human gliomas integrating data from online datasets and our cohorts. High levels of HOTAIR were associated with higher grades of glioma, particularly IDH wild-type cases. Mechanistically, HOTAIR was overexpressed in a gene dosage-independent manner, while DNA methylation levels of particular CpGs in HOTAIR locus were associated with HOTAIR expression levels in GBM clinical specimens and cell lines...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643989/the-lncrna-h19-positively-affects-the-tumorigenic-properties-of-glioblastoma-cells-and-contributes-to-nkd1-repression-through-the-recruitment-of-ezh2-on-its-promoter
#18
Barbara Fazi, Sabrina Garbo, Nicola Toschi, Annunziato Mangiola, Malinska Lombari, Daria Sicari, Cecilia Battistelli, Silvia Galardi, Alessandro Michienzi, Gianluca Trevisi, Rona Harari-Steinfeld, Carla Cicchini, Silvia Anna Ciafrè
The still largely obscure molecular events in the glioblastoma oncogenesis, a primary brain tumor characterized by an inevitably dismal prognosis, impel for investigation. The importance of Long noncoding RNAs as regulators of gene expression has recently become evident. Among them, H19 has a recognized oncogenic role in several types of human tumors and was shown to correlate to some oncogenic aspects of glioblastoma cells. Here we, hypothesyze that in glioblastoma H19 exerts its function through the interaction with the catalytic subunit of the PRC2 complex, EZH2...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643764/the-idh1-mutation-induced-oncometabolite-2-hydroxyglutarate-may-affect-dna-methylation-and-expression-of-pd-l1-in-gliomas
#19
Luyan Mu, Yu Long, Changlin Yang, Linchun Jin, Haipeng Tao, Haitao Ge, Yifan E Chang, Aida Karachi, Paul S Kubilis, Gabriel De Leon, Jiping Qi, Elias J Sayour, Duane A Mitchell, Zhiguo Lin, Jianping Huang
Background: Malignant gliomas are heterogeneous brain tumors with the potential for aggressive disease progression, as influenced by suppressive immunoediting. Given the success and enhanced potential of immune-checkpoint inhibitors in immunotherapy, we focused on the connections between genetic alterations affected by IDH1 mutations and immunological landscape changes and PDL-1 expression in gliomas. Methods: Paired surgically resected tumors from lower-grade gliomas (LGGs) and glioblastomas (GBM) were investigated, and a genetic analysis of patients' primary tumor samples culled from TCGA datasets was performed...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29643042/-primary-culture-of-human-malignant-meningioma-cells-and-its-intracranial-orthotopic-transplantation-in-nude-mice
#20
Mei-Xin Hu, Jia-le Liu, Xuan-Bo Chen, An-Qi Xu, Song-Ren Shu, Chao-Hu Wang, Yi Liu
OBJECTIVE: To obtain stable primary cultures of human malignant meningioma cells and establish an intracranial in-situ tumor model in nude mice. METHODS: Ten surgical specimens of highly suspected malignant meningioma were obtained with postoperative pathological confirmation. Primary malignant meningioma cells were cultured from the tissues using a modified method and passaged. After identification with cell immunofluorescence, the cultured cells were inoculated into the right parietal lobe of 6 nude mice using stereotaxic apparatus and also transplanted subcutaneously in another 6 nude mice...
March 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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