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PubMed Journals Articles About "Strategy Improve Ability Cells Target Brain Tumours Reported" RSS

10:58 EST 16th December 2018 | BioPortfolio

Strategy Improve Ability Cells Target Brain Tumours Reported PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Strategy Improve Ability Cells Target Brain Tumours Reported articles that have been published worldwide.

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Showing "strategy improve ability cells target brain tumours reported" PubMed Articles 1–25 of 58,000+

Modulating aptamer specificity with pH-responsive DNA bonds.

Aptamers that recognize specific cells in a complex environment have emerged as invaluable molecular tools in bioanalysis and in the development of targeted therapeutics. The selective recognition of aptamers, however, can be compromised by the coexistence of target receptors on both target cells and other cells. To address this problem, we constructed a structure-switchable aptamer (SW-Apt) with reconfigurable binding affinity in accordance with the microenvironment of target cells. The SW-Apt makes use of...


Teaching an old dog new tricks: next-generation CAR T cells.

Adoptive T cell therapy (ACT) refers to the therapeutic use of T cells. T cells genetically engineered to express chimeric antigen receptors (CAR) constitute the most clinically advanced form of ACT approved to date for the treatment of CD19-positive leukaemias and lymphomas. CARs are synthetic receptors that are able to confer antigen-binding and activating functions on T cells with the aim of therapeutically targeting cancer cells. Several factors are essential for CAR T cell therapy to be effective, such...

Multidimensional communication in the microenvirons of glioblastoma.

Glioblastomas are heterogeneous and invariably lethal tumours. They are characterized by genetic and epigenetic variations among tumour cells, which makes the development of therapies that eradicate all tumour cells challenging and currently impossible. An important component of glioblastoma growth is communication with and manipulation of other cells in the brain environs, which supports tumour progression and resistance to therapy. Glioblastoma cells recruit innate immune cells and change their phenotype ...


The Primo Vascular System as a possible exosomal route across the body: implications for tumour proliferation and metastasis.

This literature study paper will present the possibility of a correlation between the Energy Meridians of Traditional Chinese Medicine (TCM), which can be traced back to the recently described Primo Vessels (formerly known as Bong-Han ducts), their composition and the ability of tumours to proliferate and metastasise. It is proposed that microvesicular bodies such as exosomes, known to be involved in cell-to-cell communication, immune response and tumour proliferation, could be moving across the body via th...

The neurofilament derived-peptide NFL-TBS.40-63 enters in-vitro in human neural stem cells and increases their differentiation.

Regenerative medicine is a promising approach to treat neurodegenerative diseases by replacing degenerating cells like neurons or oligodendrocytes. Targeting human neural stem cells directly in the brain is a big challenge in such a strategy. The neurofilament derived NFL-TBS.40-63 peptide has recently been introduced as a novel tool to target neural stem cells. Previous studies showed that this peptide can be internalized by rat neural stem cells in vitro and in vivo, which coincided with lower proliferati...

SCTICA: Sub-packet constrained temporal ICA method for fMRI data analysis.

Independent component analysis (ICA) has become a widely used method for functional magnetic resonance imaging (fMRI) data analysis. However, spatial ICA usually performs better than temporal ICA with regard to the stability and accuracy of functional connectivity detection, and temporal ICA is often not feasible when it is applied to the analysis of real fMRI data of the whole brain because of the excessive spatial dimensions. In this paper, to overcome these problems, we propose a sub-packet constrained t...

Targeting miRNAs with CRISPR/Cas9 to Improve Recombinant Protein Production of CHO Cells.

MicroRNAs with their unique ability to target hundreds of genes have been highlighted as powerful tools to improve bioprocess behavior of cells. The common approaches to stably deplete miRNAs are the use of sponge decoy transcripts or shRNA inhibitors, which requires the introduction and expression of extra genetic material. As an alternative, we implemented the CRISPR/Cas9 system in our laboratory to generate Chinese hamster ovary (CHO) cells which lack the expression of a specific miRNA for the purpose of...

Genetic Strategies for HIV Treatment and Prevention.

Conventional HIV gene therapy approaches are based on engineering HIV target cells that are non-permissive to viral replication. However, expansion of gene-modified HIV target cells has been limited in patients. Alternative genetic strategies focus on generating gene-modified producer cells that secrete antiviral proteins (AVPs). The secreted AVPs interfere with HIV entry, and, therefore, they extend the protection against infection to unmodified HIV target cells. Since any cell type can potentially secrete...

Photodynamic detection of a canine glioblastoma using 5-aminolevulinic acid.

Photodynamic detection using 5-aminolevulinic acid has been used to identify the surgical margins during resection of human primary brain tumours. Although there are some reports on its use in malignant tumours in veterinary medicine, it has never been used for primary brain tumours. Here we describe a canine glioblastoma that was detected at autopsy with protoporphyrin IX fluorescence induced by orally administered 5-aminolevulinic acid. The fluorescence was strongest towards the centre of the lesion and w...

Clinical and epidemiological characteristics of pituitary tumours in a single centre in Saudi Arabia.

Pituitary tumours are slowly progressing tumours, mostly benign, with a reported global prevalence of 16.7% (22.5% in radiologic studies and 14.4% in autopsy studies). Clinical and epidemiological data on pituitary adenomas in Saudi Arabia are lacking. We aimed to utilise our database variables to determine clinical and epidemiological characteristics as well as treatment outcomes of pituitary tumours among Saudi patients.

Modular Nanoparticulate Prodrug Design Enables Efficient Treatment of Solid Tumors Using Bioorthogonal Activation.

Prodrug strategies that facilitate localized and controlled activity of small-molecule therapeutics can reduce systemic exposure and improve pharmacokinetics, yet limitations in activation chemistry have made it difficult to assign tunable multifunctionality to prodrugs. Here, we present the design and application of a modular small-molecule caging strategy that couples bioorthogonal cleavage with a self-immolative linker and an aliphatic anchor. This strategy leverages recently discovered in vivo catalysis...

Genetic engineering and characterisation of chlorotoxin-fused gelonin for enhanced glioblastoma therapy.

Despite substantial advances in its treatment, brain cancer remains a life-threatening disease with a poor survival rate. The main challenges for the conventional chemotherapy include an insufficient efficacy of drugs and toxicity caused by their nonselective mode of action. Recently, great attention has been paid to highly potent macromolecules such as gelonin, a type 1 ribosome-inactivating protein that inhibits protein translation. However, gelonin is poorly internalised into tumour cells and cannot dist...

Neural stem cell therapies and hypoxic-ischemic brain injury.

Hypoxic-ischemic brain injury is a significant cause of morbidity and mortality in the adult as well as in the neonate. Extensive pre-clinical studies have shown promising therapeutic effects of neural stem cell-based treatments for hypoxic-ischemic brain injury. There are two major strategies of neural stem cell-based therapies: transplanting exogenous neural stem cells and boosting self-repair of endogenous neural stem cells. Neural stem cell transplantation has been proved to improve functional recovery ...

A new glioblastoma cell trap for implantation after surgical resection.

Glioblastoma (GB) is a highly infiltrative tumor, recurring, in 90% of cases, within a few centimeters of the surgical resection cavity, even with adjuvant chemo/radiotherapy. Residual GB cells left in the margins or infiltrating the brain parenchyma shelter behind the extremely fragile and sensitive brain tissue and may favor recurrence. Tools for eliminating these cells without damaging the brain microenvironment are urgently required. We propose a strategy involving the implantation, into the tumor bed a...

Concise Reviews: Cancer Stem Cell Targeted Therapies: Toward Clinical Success.

Cancer stem cells (CSCs) are a subpopulation of cells within tumors that possess the stem cell characteristics of self-renewal, quiescence, differentiation, and the ability to recapitulate the parental tumor when transplanted into a host. CSCs are correlated with poor clinical outcome due to their contribution to chemotherapy resistance and metastasis. Multiple cell surface and enzymatic markers have been characterized to identify CSCs within a heterogeneous tumor, and here we summarize ongoing preclinical ...

Re-examining the potential of targeting ABHD6 in multiple sclerosis: Efficacy of systemic and peripherally restricted inhibitors in experimental autoimmune encephalomyelitis.

α/β-Hydrolase domain-containing 6 (ABHD6) contributes to the hydrolysis of the major endocannabinoid 2-arachidonoylglycerol (2-AG) in the central nervous system (CNS) and in the periphery. ABHD6 blockade has been proposed as novel strategy to treat multiple sclerosis (MS), based on the observation that the inhibitor WWL70 exerts protective anti-inflammatory effects in experimental autoimmune encephalomyelitis (EAE). According to recent data, WWL70 exhibits off-target anti-inflammatory activity in microgli...

Dexamethasone-related adrenal insufficiency in patients with brain and skull base tumours.

This study aimed to evaluate the prevalence of glucocorticoid-induced adrenal insufficiency in a cohort of patients with brain and skull base tumours and to identify factors which may predict its occurrence.

NK cell-mediated anti-leukemia cytotoxicity is enhanced using a NKG2D ligand MICA and anti-CD20 scfv chimeric protein.

Natural killer (NK) cells are important innate cytotoxic lymphocytes that have potential in treatment of leukemia. Engagement of NKG2D receptor on NK cells enhances the target cytotoxicity. Here we produced a fusion protein consisting of the extracellular domain of the NKG2D ligand MICA and the anti-CD20 single-chain variable fragment (scfv). This recombinant protein is capable of binding both NK cells and CD20 tumor cells. Using a human NKG2D reporter cell system we developed, we showed that this fusion pr...

B cells drive auto-T cells to the brain.

Self-reactive T cells that traffic to the brain tissue of patients with multiple sclerosis are driven by antigen-experienced B cells.

Real-time Multimodal Bioimaging of Cancer Cells and Exosomes through Biosynthesized Iridium and Iron Nanoclusters.

Multimodal imaging is a powerful tool for visualizing the abnormal state at the target site of the related disease. This study presents a multimodal approach that includes Fluorescence, Computed tomography and Magnetic resonance imaging to improve early and precise diagnosis of tumor. Herein, a facile strategy is reported for the in situ biosynthesis of Iridium and iron oxide nanoclusters (NCs) in cancer cells or tumor tissue. These NCs are applied for the in vivo multimodal imaging in the form of imaging p...

Parental stress and paediatric acquired brain injury.

Studies on parental stress following childhood acquired brain injury (ABI-including brain tumours (BT) and other brain injuries) are scarce. The aim of this study was to assess maternal stress in a sample of children and adolescents diagnosed with severe paediatric ABI.

Dasatinib sensitises KRAS-mutant cancer cells to mitogen-activated protein kinase kinase inhibitor via inhibition of TAZ activity.

Oncogenic KRAS mutations occur frequently in solid tumours, but no clinically applicable targeted strategy is yet available for treating human cancers with mutant KRAS. Here we aimed to identify a strategy for the treatment of KRAS-driven cancers.

Pharmaceutical iron formulations do not cross a model of the human blood-brain barrier.

Whether iron formulations used therapeutically for a variety of conditions involving iron deficiency can deliver iron to the brain is a significant clinical question given the impact that iron loading has on the brain in neurodegenerative diseases. In this study, we examine the ability of 5 pharmaceutical iron formulations that are given intravenously for treatment of iron deficiency to cross an in vitro model of the blood-brain barrier. The model uses human brain endothelial cells derived from induced plur...

Intra-operative cerebrospinal fluid sampling versus post-operative lumbar puncture for detection of leptomeningeal disease in malignant paediatric brain tumours.

Leptomeningeal disease is a feared sequelae of malignant paediatric brain tumours. Current methods for its detection is the combined use of cranio-spinal MRI, and CSF cytology from a post-operative lumbar puncture. In this study, the authors hypothesize that CSF taken at the start of surgery, either from an external ventricular drain or neuroendoscope will have equal sensitivity for positive tumour cells, in comparison to lumbar puncture. Secondary hypotheses include positive correlation between CSF cytolog...

Let-7a promotes microglia M2 polarization by targeting CKIP-1 following ICH.

Microglia polarization plays a crucial role in initiating brain inflammatory injury after intracerebral hemorrhage (ICH). Casein Kinase 2 Interacting Protein 1(CKIP-1) has been identified as a transcriptional molecular to manipulate microglia polarization. MiRNAs regulate gene expression and microglia polarization. In the experiment, CKIP-1 has been predicted as a target gene of let-7a. Let-7a, CKIP-1 and downstream proinflammatory mediator production of ICH mice were analyzed. In addition, inflammation, br...


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