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Cancer: Neuroblastoma
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Total 79 results found since Jan 2013.
Akt and Src mediate the photocrosslinked fibroin-induced neural differentiation.
Neural transplantation is a promising modality for treatment of neurodegenerative diseases, traumatic brain injury and stroke. Biocompatible scaffolds with optimized properties improve the survival of transplanted neural cells and differentiation of progenitor cells into the desired types of neurons. Silk fibroin is a biocompatible material for tissue engineering. Here, we describe thin-film scaffolds based on photocrosslinked methacrylated silk fibroin (FBMA). These scaffolds exhibit an increased mechanical stiffness and improved water stability. Photocrosslinking of fibroin increased its rigidity from 25 to 480 kPa and...
Source: NeuroReport - June 9, 2020 Category: Neurology Tags: Degeneration and Repair Source Type: research
PAQR3 protects against oxygen –glucose deprivation/reperfusion-induced injury through the ERK signaling pathway in N2A cells
AbstractCerebral ischemia –reperfusion injury is pivotal in the development of multiple-subcellular organelle and tissue injury after acute ischemic stroke. Recently, the Golgi apparatus (GA) has been shown to be a key subcellular organelle that plays an important role in neuroprotection against oxygen–glucose deprivatio n/reperfusion (OGD/R) injury. PAQR3, a scaffold protein exclusively localized in the GA, was originally discovered as a potential tumor suppressor protein. PAQR3 acts as a spatial regulator of Raf-1 that binds Raf-1 and sequesters it to the GA, where it negatively modulates the Ras/Raf/MEK/ERK signa li...
Source: Journal of Molecular Histology - May 24, 2020 Category: Laboratory Medicine Source Type: research
Upregulation of miR-219a-5p Decreases Cerebral Ischemia/Reperfusion Injury In Vitro by Targeting Pde4d
In this study, we explored the neuroprotective effects of miR-219a-5p on brain using an in vitro ischemia model (mouse neuroblastoma N2a cells treated with oxyglucose deprivation and reperfusion), and in vivo cerebral I/R model in mice.
Source: Journal of Stroke and Cerebrovascular Diseases - April 1, 2020 Category: Neurology Authors: Min-Yi Lu, Jin-Rong Wu, Rui-Bing Liang, Yu-Peng Wang, You-Cai Zhu, Zi-Ting Ma, Hao Zhang, Jie Zan, Wen Tan Source Type: research
Neuroprotective effects of miR-532-5p against ischemic stroke
In this study, we established anin vivo middle cerebral artery occlusion (MCAO) model in mice. The expression level of miR-532-5p, neurological score, infarct area, neuronal apoptosis, and phosphoinositide 3-kinase (PI3K)/Akt signaling pathway-related molecules were examined. Low miR-532-5p levels and high phosphatase and tensin homolog deleted on chromosome 10 (PTEN) levels were detected in the mouse MCAO model. MiR-532-5p overexpression improved neurological dysfunction, reduced the infarct area, attenuated neuronal injury and apoptosis, and promoted the activation of the PI3K/Akt signaling pathway in MCAO mice. In vitro...
Source: Metabolic Brain Disease - February 20, 2020 Category: Neurology Source Type: research
Levetiracetam, an antiepileptic drug has neuroprotective effects on intracranial hemorrhage injury
Publication date: Available online 11 February 2020Source: NeuroscienceAuthor(s): Takahiko Imai, Tomoki Sugiyama, Sena Iwata, Shinsuke Nakamura, Masamitsu Shimazawa, Hideaki HaraAbstractIntracranial hemorrhage (ICH) is a devastating disease that induces hematoma formation with poor neuronal outcome. Levetiracetam (LEV) has been approval for epilepsy seizures. In a previous study, LEV exerted protective effects on cerebral ischemia models; however, the detail effects and the influence of LEV on ICH are still unknown. The aim of this study was to investigate whether oral administration of LEV (50 or 150 mg/kg) has protective...
Source: Neuroscience - February 13, 2020 Category: Neuroscience Source Type: research
Early Transplantation of Human Cranial Bone-derived Mesenchymal Stem Cells Enhances Functional Recovery in Ischemic Stroke Model Rats.
Authors: Oshita J, Okazaki T, Mitsuhara T, Imura T, Nakagawa K, Otsuka T, Kurose T, Tamura T, Abiko M, Takeda M, Kawahara Y, Yuge L, Kurisu K
Abstract
We analyzed the cell characteristics, neuroprotective, and transplantation effects of human cranial bone-derived mesenchymal stem cells (hcMSCs) in ischemic stroke model rats compared with human iliac bone-derived mesenchymal stem cells (hiMSCs). The expressions of brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF ) as neurotrophic factors were analyzed in both MSCs. hiMSCs or hcMSCs were intravenously administered into ischemic st...
Source: Neurologia Medico-Chirurgica - January 22, 2020 Category: Neurosurgery Tags: Neurol Med Chir (Tokyo) Source Type: research
Cerebellar Fastigial Nucleus Stimulation in a Chronic Unpredictable Mild Stress Rat Model Reduces Post-Stroke Depression by Suppressing Brain Inflammation via the microRNA-29c/TNFRSF1A Signaling Pathway.
CONCLUSIONS In a rat model, cerebellar fastigial nucleus stimulation reduced the expression of TNFRSF1A by upregulating miR-29c expression, which suppressed the expression of inflammatory cytokines, resulting in reduced severity of post-stroke depression.
PMID: 31352465 [PubMed - in process]
Source: Medical Science Monitor - July 30, 2019 Category: Research Tags: Med Sci Monit Source Type: research
Orexin-A protects against oxygen-glucose deprivation/reoxygenation-induced cell damage by inhibiting endoplasmic reticulum stress-mediated apoptosis via the Gi and PI3K signaling pathways.
Abstract
The neuropeptide orexin-A (OXA) has a neuroprotective effect, acting as an anti-apoptotic factor in response to multiple stimuli. Apoptosis induced by endoplasmic reticulum stress (ERS) underlies oxygen-glucose deprivation and reoxygenation (OGD/R)-induced cell damage, an in vitro model of ischemia/reperfusion injury. However, that OXA inhibits ERS-induced apoptosis in the OGD/R model has not been reported. In the present study, we investigated the neuroprotective effect of OXA (0.1 μM) on OGD/R-induced damage in the human neuroblastoma cell line SH-SY5Y. After OXA treatment following 4 h oxygen-gluc...
Source: Cellular Signalling - June 20, 2019 Category: Cytology Authors: Kong T, Qiu K, Liu M, Cheng B, Pan Y, Yang C, Chen J, Wang C Tags: Cell Signal Source Type: research
Protective effect of gastrodin against methamphetamine-induced autophagy in human dopaminergic neuroblastoma SH-SY5Y cells via the AKT/mTOR signaling pathway
This study investigates whether METH induces autophagy in the human dopaminergic neuroblastoma cell line SH-SY5Y, then examines the neuroprotective effects of gastrodin against autophagy in METH-treated SH-SY5Y cells. The effects of METH on the protein expressions of autophagy-related genes (LC3B and Beclin-1) were evaluated with and without gastrodin. The presence of autophagosomes in the METH-induced treatment with and without gastrodin is revealed through transmission electron microscopy. Pharmacological intervention was employed to study the role of the AKT/mTOR signaling pathway in the gastrodin-mediated neuroprotecti...
Source: Neuroscience Letters - May 24, 2019 Category: Neuroscience Source Type: research
Is air pollution a potential cause of neuronal injury?
CONCLUSION: Gluconeogenesis was induced in human neural cells exposed to fine particles (DEP), in association with cell damage and oxidative stress. These findings suggest that the pathogenesis of cerebrovascular injury due to fine particle pollutant exposure may proceed through derangements in gluconeogenic metabolism.
ABBREVIATIONS: DEP: diesel exhaust particles, ICA: intracranial atherosclerosis, ROS: reactive oxygen species.
PMID: 31099309 [PubMed - as supplied by publisher]
Source: Neurological Research - May 18, 2019 Category: Neurology Tags: Neurol Res Source Type: research
The Effects of Intelectin-1 on Antioxidant and Angiogenesis in HUVECs Exposed to Oxygen Glucose Deprivation
Conclusion: These results suggest intelectin-1 promotes angiogenesis, inhibits oxidative stress and reduces apoptosis by stimulating the Akt-eNOS signaling pathway in response to ischemia in vitro.
Introduction
Stroke is a main reason of human neurological disability, ischemic stroke (IS) accounts for almost 80–90% of all strokes. IS occurs after a cerebral blood flow disruption, leading to cellular death and tissue damage by restricting glucose and oxygen supplies (1). Ischemic vascular diseases cause substantial vascular valve and vascular endothelial cell injuries, eventually damaging the surrounding tis...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research
Connecting Metainflammation and Neuroinflammation Through the PTN-MK-RPTP β/ζ Axis: Relevance in Therapeutic Development
Conclusion
The expression of the components of the PTN-MK-RPTPβ/ζ axis in immune cells and in inflammatory diseases suggests important roles for this axis in inflammation. Pleiotrophin has been recently identified as a limiting factor of metainflammation, a chronic pathological state that contributes to neuroinflammation and neurodegeneration. Pleiotrophin also seems to potentiate acute neuroinflammation independently of the inflammatory stimulus while MK seems to play different -even opposite- roles in acute neuroinflammation depending on the stimulus. Which are the functions of MK and PTN in chronic neuroi...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research
Long non-coding SNHG1 in cancer
ConclusionSNHG1 likely acts as a useful tumour biomarker for cancer diagnosis, prognosis and treatment.
Source: Clinica Chimica Acta - March 6, 2019 Category: Laboratory Medicine Source Type: research
Long non-coding SNHG1 in cancer.
CONCLUSION: SNHG1 likely acts as a useful tumour biomarker for cancer diagnosis, prognosis and treatment.
PMID: 30849309 [PubMed - as supplied by publisher]
Source: International Journal of Clinical Chemistry - March 4, 2019 Category: Chemistry Authors: Thin K, Tu JC, Sudheesh C Tags: Clin Chim Acta Source Type: research
Long non-coding RNA AK038897 aggravates cerebral ischemia/reperfusion injury via acting as a ceRNA for miR-26a-5p to target DAPK1.
Abstract
Emerging evidence has suggested a significant role of long non-coding RNAs (lncRNAs) in ischemic stroke by acting as competing endogenous RNAs (ceRNAs) for microRNAs (miRNAs) to regulate certain RNA transcripts. AK038897 is an lncRNA that was reported to be upregulated in rat brains in response to transient focal ischemia. We aimed to investigate the possible regulatory role of AK038897 in ischemic stroke. We detected increased AK038897 and decreased miR-26a-5p levels in mouse brains following middle cerebral artery occlusion/reperfusion (MCAO/R) and in neuro-2A (N2a) neuroblastoma cells following oxygen-...
Source: Experimental Neurology - January 28, 2019 Category: Neurology Authors: Wei R, Zhang L, Hu W, Wu J, Zhang W Tags: Exp Neurol Source Type: research
