43,785 results match your criteria Neuroblastoma


Probenecid increases renal retention and antitumor activity of DFMO in neuroblastoma.

Cancer Chemother Pharmacol 2021 Jun 15. Epub 2021 Jun 15.

Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, 400 Monroe Ave, NW, Grand Rapids, MI, 49503, USA.

Background: Neuroblastoma (NB) is the most common extracranial solid tumor in children. Interference with the polyamine biosynthesis pathway by inhibition of MYCN-activated ornithine decarboxylase (ODC) is a validated approach. The ODC inhibitor α-difluoromethylornithine (DFMO, or Eflornithine) has been FDA-approved for the treatment of trypanosomiasis and hirsutism and has advanced to clinical cancer trials including NB as well as cancer-unrelated human diseases. Read More

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The case for a cancer paradox initiative.

Authors:
Stuart G Baker

Carcinogenesis 2021 Jun 15. Epub 2021 Jun 15.

National Cancer Institute, Medical Center Dr MSC, Bethesda MD.

The physicist Niels Bohr said "How wonderful that we have met with a paradox. Now we have some hope of making progress." Many paradoxical results have no obvious explanation under the standard somatic mutation theory of tumorigenesis including non-genotoxic carcinogens, foreign-body tumorigenesis, tumors lacking the inducing mutation, spontaneous regression of neuroblastoma, epithelial cancer induced by a stromal carcinogen exposure, the link between schistosomiasis and bladder cancer, and experimental reversion of cancer-like alterations to normal tissue. Read More

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Quisinostat mediated autophagy is associated with differentiation in neuroblastoma SK-N-SH cells.

Mol Biol Rep 2021 Jun 14. Epub 2021 Jun 14.

Department of Applied Biology, CSIR- Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana, India.

Neuroblastoma (NB) is the most common childhood cancer that arises from the sympathetic nervous system. NB is characterized by poor prognosis. One of the strategies to control NB is activating the differentiation process in undifferentiated NB cells. Read More

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Design, synthesis, and biological evaluation of novel bifunctional thyrointegrin antagonists for neuroblastoma.

Bioorg Med Chem 2021 Jun 6;42:116250. Epub 2021 Jun 6.

Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, United States. Electronic address:

Receptor-mediated cancer therapy has received much attention in the last few decades. Neuroblastoma and other cancers of the sympathetic nervous system highly express norepinephrine transporter (NET) and cell plasma membrane integrin αvβ3. Dual targeting of the NET and integrin αvβ3 receptors using a Drug-Drug Conjugate (DDC) might provide effective treatment strategy in the fight against neuroblastoma and other neuroendocrine tumors. Read More

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Anti-tumor effects of rigosertib in high-risk neuroblastoma.

Transl Oncol 2021 Jun 9;14(8):101149. Epub 2021 Jun 9.

Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden. Electronic address:

High-risk neuroblastoma has a poor prognosis despite intense treatment, demonstrating the need for new therapeutic strategies. Here we evaluated the effects of rigosertib (ON-01910.Na) in preclinical models of high-risk neuroblastoma. Read More

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Arsenic disrupts neuronal insulin signaling through increasing free PI3K-p85 and decreasing PI3K activity.

Toxicol Lett 2021 Jun 9;349:40-50. Epub 2021 Jun 9.

Laboratory of Pharmacology, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Rd, Bangkok, 10210, Thailand; Environmental Toxicology Program, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6 Rd, Bangkok, 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Higher Education, Science, Research and Innovation, Thailand.

Previously, we reported that prolonged arsenic exposure impaired neuronal insulin signaling. Here we have further identified novel molecular mechanisms underlying neuronal insulin signaling impairment by arsenic. Arsenic treatment altered insulin dose-response curve and reduced maximum insulin response in differentiated human neuroblastoma SH-SY5Y cells, suggesting that arsenic hindered neuronal insulin signaling in a non-competitive like manner. Read More

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Protective effect of transient receptor potential melastatin 2 inhibitor A10 on oxygen glucose deprivation/reperfusion model.

Zhejiang Da Xue Xue Bao Yi Xue Ban 2021 Feb;50(1):106-112

Department of Human Anatomy,Histology and Embryology,School of Basic Medicine,Ningxia Medical University,Yinchuan 750004,China.

:To investigate the effect of transient receptor potential melastatin 2 (TRPM2) inhibitor A10 on oxygen glucose deprivation/reperfusion (OGD/R) injury in SH-SY5Y cells.:Human neuroblastoma SH-SY5Y cells were subject to OGD/R injury,and then were divided into blank control group,model control group and A10 group randomly. The cell survival rate was detected by cell counting kit 8 (CCK-8); the level of cellular reactive oxygen species (ROS) was detected by reactive oxygen detection kit; the mitochondrial membrane potential was detected by tetramethylrhodamine (TMRM) method; the number of apoptotic cells was detected by TUNEL apoptosis assay kit; the protein expression level of cleaved caspase 3 was detected by Western blot.:Compared with 3,20,30,50, has lower cytotoxicity and better inhibition effect on channel activity. Compared with the model control group,ROS level was reduced,the mitochondrial membrane potential was improved,the number of apoptosis cells was reduced ,and the expression of cleaved caspase 3 was significantly reduced in the A10 group(all <0. Read More

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February 2021

Age related gene DST represents an independent prognostic factor for MYCN non-amplified neuroblastoma.

BMC Pediatr 2021 Jun 11;21(1):272. Epub 2021 Jun 11.

Medical Research Center, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.

Background: MYCN amplification and age are two critical prognostic factors of pediatric neuroblastoma. Previously, we had revealed the prognosis of MYCN target genes. However, the prognostic effects of age related genes in neuroblastoma are unclear. Read More

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SIRT1/PGC-1α signaling activation by mangiferin attenuates cerebral hypoxia/reoxygenation injury in neuroblastoma cells.

Eur J Pharmacol 2021 Jun 8:174236. Epub 2021 Jun 8.

Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, School of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. Faculty of Life Sciences, Northwest University, 229 Taibai North Road, Xi'an, China. Electronic address:

Ischemia reperfusion injury (IRI) is associated with poor prognoses in the setting of ischemic brain diseases. Silence information regulator 1 (SIRT1) is a member of the third class of nicotinamide adenine dinucleotide (NAD)-dependent sirtuins. Recently, the role of SIRT1/peroxisome proliferators-activated receptor-γ coactivator 1α (PGC-1α) pathway in organ (especially the brain) protection under various pathological conditions has been widely investigated. Read More

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Frequency and Prognostic Impact of Amplifications and Mutations in the European Neuroblastoma Study Group (SIOPEN) High-Risk Neuroblastoma Trial (HR-NBL1).

J Clin Oncol 2021 Jun 11:JCO2100086. Epub 2021 Jun 11.

Department of Paediatric Haematology and Oncology, Second Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic.

Purpose: In neuroblastoma (NB), the ALK receptor tyrosine kinase can be constitutively activated through activating point mutations or genomic amplification. We studied genetic alterations in high-risk (HR) patients on the HR-NBL1/SIOPEN trial to determine their frequency, correlation with clinical parameters, and prognostic impact.

Materials And Methods: Diagnostic tumor samples were available from 1,092 HR-NBL1/SIOPEN patients to determine amplification status (n = 330), mutational profile (n = 191), or both (n = 571). Read More

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Staging childhood cancers in Europe: Application of the Toronto stage principles for neuroblastoma and Wilms tumour. The JARC pilot study.

Pediatr Blood Cancer 2021 Jun 11:e29020. Epub 2021 Jun 11.

Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, University College London, London, UK.

Background: The 'Toronto consensus principles and guidelines' (TG) provided paediatric-specific staging system affordable by population-based cancer registries (CRs). Within the European Rare Cancers Joint Action, a pilot study of the application of TG for childhood cancer (CC) was conducted to test the ability of CRs to reconstruct stage, describe stage across countries and assess survival by stage.

Procedure: Twenty-five CRs representing 15 countries contributed data on a representative sample of patients with neuroblastoma (NB) and Wilms tumour (WT) <15 years, diagnosed between 2000 and 2016. Read More

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Ratiometric sensing of Zn with a new benzothiazole-based fluorescent sensor and living cell imaging.

Analyst 2021 Jun 11. Epub 2021 Jun 11.

School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.

A new fluorescent probe, 3-(benzo[d]thiazol-2-yl)-5-bromosalicylaldehyde-4N-phenyl thiosemicarbazone (BTT), for ratiometric sensing of Zn2+ ions in methanol/HEPES buffer solution (3 : 2, pH = 7.4) is reported in this paper. The presence of Zn2+ ions yields a significant blue shift in the maximum emission of BTT from 570 nm to 488 nm, accompanied by a clear color change from orange to green. Read More

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Differential Effects of the Six Human TAU Isoforms: Somatic Retention of 2N-TAU and Increased Microtubule Number Induced by 4R-TAU.

Front Neurosci 2021 25;15:643115. Epub 2021 May 25.

Institute of Human Genetics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.

In the adult human brain, six isoforms of the microtubule-associated protein TAU are expressed, which result from alternative splicing of exons 2, 3, and 10 of the gene. These isoforms differ in the number of N-terminal inserts (0N, 1N, 2N) and C-terminal repeat domains (3R or 4R) and are differentially expressed depending on the brain region and developmental stage. Although all TAU isoforms can aggregate and form neurofibrillary tangles, some tauopathies, such as Pick's disease and progressive supranuclear palsy, are characterized by the accumulation of specific TAU isoforms. Read More

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Model to predict cause-specific mortality in patients with olfactory neuroblastoma: a competing risk analysis.

Radiat Oncol 2021 Jun 10;16(1):103. Epub 2021 Jun 10.

Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China.

Purpose: The main objective of this study was to evaluate the cumulative incidence of cause-specific mortality and other causes of mortality for patients with olfactory neuroblastoma (ONB). The secondary aim was to model the probability of cause-specific death and build a competing risk nomogram to predict cause-specific mortality for this disease.

Methods: Patients with ONB from 1975 to 2016 were identified from the Surveillance, Epidemiology, and End Results database. Read More

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Evaluation of cytotoxic and genotoxic effects of paclitaxel-loaded PLGA nanoparticles in neuroblastoma cells.

Food Chem Toxicol 2021 Jun 7;154:112323. Epub 2021 Jun 7.

University of Health Sciences Turkey, Gülhane Faculty of Pharmacy, Department of Pharmaceutical Technology Ankara, Turkey.

Neuroblastoma, a neoplasm of the sympathetic nervous system, is the second most common extracranial malignant tumor of childhood and the most common solid tumor of infancy. Paclitaxel (taxol), a diterpenoid pseudoalkaloid isolated from the shells of Taxus brevifolia, is the first taxane derivative used in the clinic for cancer treatment. Poly (lactic-co-glycolic acid) (PLGA) is one of the most successfully used biodegradable polymers for drug delivery which has a minimum systemic toxicity. Read More

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Fumonisin B1 induces poly (ADP-ribose) (PAR) polymer-mediated cell death (parthanatos) in neuroblastoma.

Food Chem Toxicol 2021 Jun 7;154:112326. Epub 2021 Jun 7.

Department of Biotechnology, Daegu University, Kyoungsan, Kyoungbook, 38453, Republic of Korea. Electronic address:

Fumonisin B1 (FB1) is a well-known mycotoxin produced by Fusarium spp. and has a wide range of dose-dependent toxic effects, including nephrotoxicity, hepatotoxicity, and neurotoxicity. This research illustrated that FB1 exerts its toxicity in the neuroblastoma cell line through a distinct cell-death pathway called parthanatos. Read More

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FOXR2 Stabilizes MYCN Protein and Identifies Non--Amplified Neuroblastoma Patients With Unfavorable Outcome.

J Clin Oncol 2021 Jun 10:JCO2002540. Epub 2021 Jun 10.

Hopp-Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.

Purpose: Clinical outcomes of patients with neuroblastoma range from spontaneous tumor regression to fatality. Hence, understanding the mechanisms that cause tumor progression is crucial for the treatment of patients. In this study, we show that activation identifies a subset of neuroblastoma tumors with unfavorable outcome and we investigate the mechanism how FOXR2 relates to poor outcome in patients. Read More

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Palmitic acid induces insulin resistance by a mechanism associated with energy metabolism and calcium entry in neuronal cells.

FASEB J 2021 Jul;35(7):e21712

Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.

Palmitic acid (PA) is a saturated fatty acid whose high consumption has been largely associated with the development of different metabolic alterations, such as insulin resistance, metabolic syndrome, and type 2 diabetes. Particularly in the brain, insulin signaling disruption has been linked to cognitive decline and is considered a risk factor for Alzheimer's disease. Cumulative evidence has demonstrated the participation of PA in the molecular cascade underlying cellular insulin resistance in peripheral tissues, but its role in the development of neuronal insulin resistance and the mechanisms involved are not fully understood. Read More

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The frequency and clinicopathological significance of NRAS mutations in primary cutaneous nodular melanoma in Indonesia.

Cancer Rep (Hoboken) 2021 Jun 10:e1454. Epub 2021 Jun 10.

Department of Anatomical Pathology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada/ Dr. Sardjito Hospital, Sleman, Yogyakarta, Indonesia.

Background: Melanoma is a lethal skin malignancy with a high risk of metastasis, which prompts a need for research on treatment targets and prognostic factors. Recent studies show that the presence of neuroblastoma RAS viral oncogene homolog (NRAS) mutation can influence cell growth in melanomas. The NRAS mutation, which stimulates the mitogen-activated protein kinase (MAPK) signaling pathway, is associated with a lower survival rate. Read More

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CT-Based Radiomics Signature With Machine Learning Predicts MYCN Amplification in Pediatric Abdominal Neuroblastoma.

Front Oncol 2021 24;11:687884. Epub 2021 May 24.

Department of Radiology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China.

Purpose: MYCN amplification plays a critical role in defining high-risk subgroup of patients with neuroblastoma. We aimed to develop and validate the CT-based machine learning models for predicting MYCN amplification in pediatric abdominal neuroblastoma.

Methods: A total of 172 patients with MYCN amplified (n = 47) and non-amplified (n = 125) were enrolled. Read More

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Chromosome 10 abnormality predicts prognosis of neuroblastoma patients with bone marrow metastasis.

Ital J Pediatr 2021 Jun 9;47(1):134. Epub 2021 Jun 9.

Medical Oncology Department, Pediatric Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, 100045, China.

Background: Neuroblastoma (NB) is the most common extracranial solid tumor in children. It is known for high heterogeneity and concealed onset. In recent years, the mechanism of its occurrence and development has been gradually revealed. Read More

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Proteomics identify nuclear export as a targetable pathway in neuroblastoma: Comment on "XPO1 inhibition with selinexor synergizes with proteasome inhibition in neuroblastoma by targeting nuclear export of IκB".

Authors:
Nilay Shah

Transl Oncol 2021 Jun 6;14(8):101150. Epub 2021 Jun 6.

Nationwide Children's Hospital, Department of Pediatric Hematology Oncology and Bone Marrow Transplants: Nationwide Children's Hospital Hematology Oncology & Blood and Marrow Transplant, USA.

Neuroblastoma (NBL) is an embryonal malignancy of childhood with poor outcomes for patient with high-risk disease. Multimodal treatment approaches have improved outcomes but at the cost of significant toxicity, and there is no durable therapeutic approach for relapsed disease. As NBL has no singular oncogenic driver, targeted therapeutic options have been limited. Read More

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The synergy of BET inhibitors with aurora A kinase inhibitors in MYCN-amplified neuroblastoma is heightened with functional TP53.

Neoplasia 2021 Jun 6;23(6):624-633. Epub 2021 Jun 6.

Department of Pediatrics, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA; Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA. Electronic address:

Amplification of MYCN is a poor prognostic feature in neuroblastoma (NBL) indicating aggressive disease. We and others have shown BET bromodomain inhibitors (BETi) target MYCN indirectly by downregulating its transcription. Here we sought to identify agents that synergize with BETi and to identify biomarkers of resistance. Read More

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Matrix metalloproteinase 14 regulates HSV-1 infection in neuroblastoma cells.

Antiviral Res 2021 Jun 6:105116. Epub 2021 Jun 6.

Centro de Biologia Molecular "Severo Ochoa" (C.S.I.C.-U.A.M.), Universidad Autónoma de Madrid, C/ Nicolas Cabrera 1, 28049, Madrid, Spain; Centro de Investigacion Biomédica en Red Sobre Enfermedades Neurodegenerativas, (CIBERNED), Madrid, Spain; Instituto de Investigación Sanitaria "Hospital La Paz" (IdIPaz), Madrid, Spain. Electronic address:

Growing evidence supports that chronic or latent infection of the central nervous system might be implicated in Alzheimer's disease (AD). Among them, Herpes simplex virus type 1 (HSV-1) has emerged as a major factor in the etiology of the disease. Our group is devoted to the study of the relationship among HSV-1, oxidative stress (OS) and neurodegeneration. Read More

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Neuroprotective Effects of Sodium Butyrate through Suppressing Neuroinflammation and Modulating Antioxidant Enzymes.

Neurochem Res 2021 Jun 9. Epub 2021 Jun 9.

Department of Integrated Biosciences, Graduate School of Konkuk University, Chungju, 27478, Korea.

The discovery of effective therapeutic agents against neurodegenerative diseases (NDDs) remains challenging. Neurotoxicity, inflammations, and oxidative stress are associating factors of NDDs. Sodium butyrate (NaB) is a short-chain fatty acid found in diet and produced in the gut that reportedly protects cancer, inflammation, obesity and so on. Read More

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Early Decline of Neuron-Specific Enolase during Neuroblastoma Chemotherapy is a Predictive Factor of Clinical Outcome.

Pediatr Hematol Oncol 2021 Jun 9:1-13. Epub 2021 Jun 9.

Department of Pediatric Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China.

High risk neuroblastoma (HR-NB) remains one of the most difficult-to-treat pediatric cancers. However, although current risk-stratification is based on multiple pretreatment criteria, HR-NB remains a significant heterogeneity. We examined 60 patients with HR-NB for a median follow-up time of 28 months. Read More

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Rare Variant of Adult Rhabdomyosarcoma Presenting as a Palatal Swelling.

Pak J Med Sci 2021 May-Jun;37(3):922-925

Prof. Nadia Naseem, MBBS; PhD (Histopathology) Head, Department of Morbid Anatomy and Histopathology, University of Health Sciences, Lahore, Pakistan.

A 26-year-old male was referred to the Department of Oral and Maxillofacial Surgery of a tertiary care hospital in Lahore with chief complaint of painless swelling on the right palate of 40 days duration. Clinical differential diagnosis included squamous cell carcinoma, Ewing sarcoma, fibrosarcoma, neuroblastoma and rhabdomyosarcoma. Computed tomography scan revealed hypodense mass with necrotic changes. Read More

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A review of the biological and clinical implications of RAS-MAPK pathway alterations in neuroblastoma.

J Exp Clin Cancer Res 2021 Jun 8;40(1):189. Epub 2021 Jun 8.

CANSEARCH Research Platform for Pediatric Oncology and Hematology, Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Avenue de la Roseraie 64, 1205, Geneva, Switzerland.

Neuroblastoma is the most common extra-cranial solid tumor in children, representing approximately 8% of all malignant childhood tumors and 15% of pediatric cancer-related deaths. Recent sequencing and transcriptomics studies have demonstrated the RAS-MAPK pathway's contribution to the development and progression of neuroblastoma. This review compiles up-to-date evidence of this pathway's involvement in neuroblastoma. Read More

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