Comprehensive Molecular Profiling of Olfactory Neuroblastoma Identifies Potentially Targetable FGFR3 Amplifications

Olfactory neuroblastomas (ONBs), also known as esthesioneuroblastomas, are malignant round-cell tumors that represent up to 5% of sinonasal malignancies. Despite their aggressive course, molecular studies of ONBs have been limited, and targeted therapies are lacking. To identify potential oncogenic drivers and targetable pathways in ONBs, we characterized 20 ONBs, including archived ONBs profiled by targeted, multiplexed PCR (mxPCR)–based DNA next-generation sequencing (NGS) of the coding sequence of over 400 cancer-relevant genes (n = 16), mxPCR-based RNA NGS of 108 target genes (n = 15), and 2 ONBs profiled by comprehensive hybrid-capture–based clinical grade NGS of>1,500 genes. Somatic mutations were infrequent in our cohort, with 7 prioritized nonsynonymous mutations in 5 of 18 (28%) ONBs, and no genes were recurrently mutated. We detected arm/chromosome-level copy-number alterations in all tumors, most frequently gains involving all or part of chromosome 20, chromosome 5, and chromosome 11. Recurrent focal amplifications, often but not exclusively in the context of arm-level gains, included CCND1 [n = 4/18 (22%) tumors] and the targetable receptor tyrosine kinase FGFR3 [n = 5/18 (28%) tumors]. Targeted RNA NGS confirmed high expression of FGFR3 in ONB (at levels equivalent to bladder cancer), with the highest expression observed in FGFR3-amplified ONB cases. Importantly, our findings suggest that FGFR3 may be a therapeutic target in a subset of these aggre...
Source: Molecular Cancer Research - Category: Cancer & Oncology Authors: Tags: Genomics Source Type: research

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Source: Cell - Category: Cytology Source Type: research
We describe three new settings in which ASE improves the detection of a variety of antibodies applied on long-time stored non-human primate brain sections, cell culture monolayers and on squamous carcinomas retrieved from cervical cancer patients. The significant improvement of ASE over optimized immunohistochemical protocols used in clinical practice (i.e. cancer detection) combined with its simplicity and low cost makes it an attractive method for biomedical applications.
Source: Neuroscience - Category: Neuroscience Source Type: research
Publication date: Available online 17 January 2020Source: Journal of Chemical NeuroanatomyAuthor(s): Hongyi LiuAbstractGrowing evidence has indicated that long noncoding RNAs (lncRNAs) are closely implicated in the progress of epilepsy. However, the expression profile and potential function of long noncoding RNAs cancer susceptibility candidate 2 (lncRNA CASC2) in epilepsy are poorly studied. The aim of this study was to testify the influence of lncRNA CASC2 on epilepsy in rat and cell models of epileptic seizure. We adopted qRT-PCR on the hippocampus of rats following pentylenetetrazol (PTZ)-stimulated epilepsy. To furthe...
Source: Journal of Chemical Neuroanatomy - Category: Neuroscience Source Type: research
Publication date: Available online 16 January 2020Source: The Annals of Thoracic SurgeryAuthor(s): Pierre-Emmanuel Falcoz
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
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Source: New Zealand Medical Journal - Category: General Medicine Tags: N Z Med J Source Type: research
Publication date: Available online 17 January 2020Source: Food ControlAuthor(s): Tuan Huu Do, Son Cao Tran, Chi Dinh Le, Binh Thi Ha Nguyen, Thao Thi Phuong Le, Hao Thi Hong Le, Tuyen Danh Le, Thu Hung Thai-NguyenAbstractA dietary exposure and health risk assessment of mycotoxins including aflatoxin B1, fumonisin B1, ochratoxin A, and zearalenone was conducted in 3 provinces in Northern Vietnam namely Hanoi, Thanh Hoa, and Ha Giang. Results of the analysis of samples of maize, rice, peanut, and sesame revealed the presence of these mycotoxins in all samples and sampling locations. Aflatoxin B1 was the most frequently detec...
Source: Food Control - Category: Food Science Source Type: research
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Source: Cliffside Malibu - Category: Addiction Authors: Tags: Alcohol Alcohol Rehab Information Alcoholism alcohol abuse alcohol dependence alcohol treatment alcohol treatment center binge binge drinking Source Type: blogs
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Source: The Doctors Lounge - Psychiatry - Category: Psychiatry Tags: Family Medicine, Gynecology, Internal Medicine, Oncology, Psychiatry, Journal, Source Type: news
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Source: Deutsches Arzteblatt International - Category: General Medicine Tags: Dtsch Arztebl Int Source Type: research
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Source: Saudi Journal of Biological Sciences - Category: Biology Source Type: research
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