Childhood Neuroblastoma Survivors at Higher Risk for Psych Disorders

(MedPage Today) -- Chronic health conditions predicted impairment
Source: MedPage Today Psychiatry - Category: Psychiatry Source Type: news

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Publication date: Available online 17 October 2019Source: Cancer CellAuthor(s): Zulekha A. Qadeer, David Valle-Garcia, Dan Hasson, Zhen Sun, April Cook, Christie Nguyen, Aroa Soriano, Anqi Ma, Lyra M. Griffiths, Maged Zeineldin, Dan Filipescu, Luz Jubierre, Asif Chowdhury, Orla Deevy, Xiang Chen, David B. Finkelstein, Armita Bahrami, Elizabeth Stewart, Sara Federico, Soledad GallegoSummaryATRX alterations occur at high frequency in neuroblastoma of adolescents and young adults. Particularly intriguing are the large N-terminal deletions of ATRX (Alpha Thalassemia/Mental Retardation, X-linked) that generate in-frame fusion (...
Source: Cancer Cell - Category: Cancer & Oncology Source Type: research
Authors: Ye W, Liang F, Ying C, Zhang M, Feng D, Jiang X Abstract Neuroblastoma is the most common pediatric extracranial solid tumour in the world. miRNAs are a group of endogenous small non-coding RNAs that act on target genes to serve critical roles in many biological processes. Presently, the expression and role of miR-3934-5p in neuroblastoma remains unclear. Therefore, the aim of the present study was to investigate the expression of miR-3934-5p in neuroblastoma tissues and cell lines and to assess the role of miR-3934-5p in neuroblastoma. In the current study, the results revealed that miR-3934-5p was signif...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
Pediatric cancers represent a wide variety of different tumors, though they have unique features that distinguish them from adult cancers. Receptor tyrosine kinases KIT and TrkA functions in AML and NB, respectively, are well-characterized. Though expression of these receptors is found in both tumors, little is known about KIT function in NB and TrkA in AML. By combining gene enrichment analysis with multidimensional scaling we showed that pediatric AMLs with t(8;21) or inv16 and high KIT expression levels stand out from other AML subtypes as they share prominent transcriptomic features exclusively with KIT-overexpressing ...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Authors: Kim KW, Kim JY, Qiao J, Clark RA, Powers CM, Correa H, Chung DH Abstract Neuroblastoma remains one of the most difficult pediatric solid tumors to treat. In particular, the refractory and relapsing neuroblastomas are highly heterogeneous with diverse molecular profiles. We previously demonstrated that AKT2 plays critical roles in the regulation of neuroblastoma tumorigenesis. Here we hypothesize that targeting AKT2 could block the signal transduction pathways enhanced in chemo- and/or radiation-resistant neuroblastoma cancer stem-like cells. We found cell proliferation and survival signaling pathways AKT2/...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Publication date: 14 October 2019Source: Cancer Cell, Volume 36, Issue 4Author(s): Esther R. Berko, Yael P. MosséMechanisms of acquired resistance to ALK inhibition therapy in neuroblastoma have not yet been elucidated. In a recent issue of Nature, Debruyne et al. demonstrate that resistant MYCN-amplified ALK-mutated neuroblastoma cells overexpress BORIS, resulting in wide-ranging changes in chromatin interaction and transcriptional reprogramming.
Source: Cancer Cell - Category: Cancer & Oncology Source Type: research
We report on the characterization of ATRX in-frame fusion neuroblastoma and identify that ATRX IFF proteins re-locate from H3K9me3 enriched regions to active chromatin, such as the promoter of neural repressor REST. We further identify that REST is upregulated in ATRX IFF NB and that several neurogenesis and REST target genes are transcriptionally downregulated. Through ChIP-seq analysis, we observe that REST is bound to ATRX IFF Down genes, which have higher levels of H3K27me3. We further show that ATRX in-frame fusion neuroblastoma cells are sensitive to EZH2 inhibitors through de-repression of H3K27me3 bound neuronal fu...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Genome binding/occupancy profiling by high throughput sequencing Expression profiling by high throughput sequencing Homo sapiens Source Type: research
AbstractNeurodegenerative diseases are multifactorial debilitating disorders of the nervous system affecting approximately 30 million individuals worldwide. Mitochondrial dysfunction and oxidative stress have also been implicated in causing neurodegeneration. As life expectancy is increasing, neurodegenerative disorders are becoming a major social issue. None of the drugs currently available for treatment are capable of healing the patient. This means that new molecules should be explored. Plants have been used for treatment of countless medical conditions and extensive research is being carried out on species of the Myrta...
Source: Inflammopharmacology - Category: Drugs & Pharmacology Source Type: research
Abstract PURPOSE: Immunotherapy promises unprecedented benefits to cancer patients. However, the majority of cancer types, including high-risk neuroblastoma remain immunologically unresponsive. High intensity focused ultrasound (HIFU) is a non-invasive technique that can mechanically fractionate tumors, transforming immunologically 'cold' tumors into responsive 'hot' tumors. EXPERIMENTAL DESIGN: We treated
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
In this study, we analyzed the long-term tumor-homing effect of allogeneic mouse MSCs (mMSCs) and explored the antitumor effect and drug delivery function of mMSCs.
Source: Journal of Pediatric Surgery - Category: Surgery Authors: Source Type: research
We examined further the effects of CTD on neuronal differentiation by measuring neurite outgrowth. Exposure to CTD (1-100 μM) significantly increased the number of cells within 24 h of culture. The nAChRs antagonists, mecamylamine and SR16584, inhibited this effect, suggesting human α3β4 nAChRs could be targets of neonicotinoids. We observed a transient intracellular calcium influx and increased phosphorylation of extracellular signal-regulated kinase 1/2 shortly after exposure to CTD. Transcriptome analysis revealed that CTD down-regulated genes involved in neuronal function (e.g., formation of filopodia...
Source: Toxicology and Applied Pharmacology - Category: Toxicology Authors: Tags: Toxicol Appl Pharmacol Source Type: research
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