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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Evaluating The Effects Of Fasting Conditions In Combination With Temozolomide For The Treatment Of Glioblastoma Multiforme, Joseph Duffy
Evaluating The Effects Of Fasting Conditions In Combination With Temozolomide For The Treatment Of Glioblastoma Multiforme, Joseph Duffy
All NMU Master's Theses
Glioblastoma multiforme (GBM) is the most aggressive and lethal form of adult brain cancer. The standard of care for GBM is maximal surgical resection followed by adjuvant treatment with the chemotherapeutic agent temozolomide (TMZ) and radiotherapy. O-6-methylguanine-DNA methyltransferase (MGMT) is a DNA repair protein involved in TMZ resistance. Known as the Warburg effect, cancer cells will preferentially oxidize glucose to lactate in glycolysis. This less effective pathway of energy production means cancer cells must uptake significantly greater amounts of glucose to sustain physiological needs. One method that directly targets the bioavailability of glucose is fasting. Among other adaptations, fasting lowers …
Cd147 As A Potential Therapeutic Target In Glioblastoma Treatment, Beau Adams
Cd147 As A Potential Therapeutic Target In Glioblastoma Treatment, Beau Adams
All NMU Master's Theses
Glioblastoma (GBM) tumors are the most common and lethal form of cancer in the central nervous system (CNS). GBM tumors appear to contain a mixture of different cell types, which makes them difficult to treat. GBM cells exhibit altered morphology from normal cells on several different levels, which highlights different pathways to potentially target for therapeutic treatments. The human surface glycoprotein CD147, also known as basigin, is expressed at significantly higher levels in GBMs compared to non-neoplastic brain tissue. Furthermore, levels of CD147 expression correlate with brain tumor progression and show the highest expression in GBM. Here, we suppressed tumor …
Characterization Of Theranostic Peptides For Glioblastoma Multiforme, Aaron Mellesmoen
Characterization Of Theranostic Peptides For Glioblastoma Multiforme, Aaron Mellesmoen
All NMU Master's Theses
Glioblastoma multiforme (GBM) is a type of primary CNS tumor in which viable treatment options do not exist. Standard of care including tumor resection, chemotherapy, and radiation does little to extend the 5-year survival expectancy past 5.1%. Herein, two small-peptide molecules with inherent antitumor activity, blood-brain barrier permeability, and capability for tumor-specific drug deliverance and intraoperative visualization (termed theranostic) were of focus. Confocal microscopy was employed to characterize in vitro specificity of chlorotoxin, a 4 kDa scorpion venom peptide, and rBSG, the recombinant 25 kDa non-glycosylated extracellular domain of extracellular matrix metalloproteinase inducer (EMMPRIN; Basigin) isoform …
Hypoxia-Regulated Expression Of Glut-1 In Gbm Cell Lines, Marissa Kane
Hypoxia-Regulated Expression Of Glut-1 In Gbm Cell Lines, Marissa Kane
All NMU Master's Theses
Unlike normal cells, cancer cells can grow in low oxygen (hypoxic) environments. Changes in relative oxygen concentration can alter gene expression in tumors to allow for their selective growth. The result of such changes allows the tumor to adapt its cellular metabolism and promote tumor progression. Most notably, hypoxic conditions induce expression of the transcription factor hypoxia inducible factor 1 (HIF-1). HIF-1 is thought to directly affect glucose transporter 1 (GLUT1) expression levels in hypoxic conditions. This study sought to determine the relationship between HIF-1 and GLUT1 expression levels within normoxic and hypoxic environments utilizing an in-vitro GBM model. The …
Basigin-2 Mediated Activation Of Erk1/2 Signaling In Human Glioblastoma Multiforme Cells, Erik R. Peterson
Basigin-2 Mediated Activation Of Erk1/2 Signaling In Human Glioblastoma Multiforme Cells, Erik R. Peterson
All NMU Master's Theses
Glioblastoma multiforme (GBM) is the most common malignant form of human brain cancer. GBM tumor cells overexpress the protein Basigin (Bsg) at the cell surface where it contributes to malignancy via stimulation of matrix metalloproteinase (MMP) expression in surrounding normal tissues, resulting in the degradation of the extracellular matrix (ECM) surrounding tumors, promoting remodeling of the tumor borders, stimulating growth. In work by Belton et al. (2008), human uterine endometrial cells treated with a recombinant form of human basigin possessing the extracellular domain of the Bsg protein (rBsg-ECD) showed activation of the Mitogen-Activated Protein Kinase (MAPK) signaling pathway proteins, ERK1/2. …
The Overexpression Of Basigin-3 In Glioblastoma, Samantha M. Wightman
The Overexpression Of Basigin-3 In Glioblastoma, Samantha M. Wightman
All NMU Master's Theses
Glioblastoma (GBM) is one of the most aggressive forms of brain tumor. With the current standard of care, survival prognosis for GBM patients is 15 months with a five-year survival rate of less than 3%. An increased understanding of the molecular mechanisms leading to cell growth and survival of GBMs may result in novel treatments to target and eradicate the disease. The protein Basigin-2 (aka EMMPRIN) induces the expression of matrix metalloproteinase (MMP) enzymes, and its expression level is positively correlated with GBM tumor grade. In 2011, Liao et al. reported that a splice variant of the basigin gene, called …
The Tumor-Suppressive Properties Of Neural Stem Cells, Ryan Passino
The Tumor-Suppressive Properties Of Neural Stem Cells, Ryan Passino
All NMU Master's Theses
Glioblastoma multiforme (GBM) is an aggressive central nervous system malignancy that commonly causes immune suppression in patients to avoid immune recognition and clearance. This complicates treatment options and limits the effectiveness of immunotherapy strategies. Interestingly, GBM formation can stimulate the neurogenic subventricular zone of the cerebral cortex and causes the proliferation and migration of neural stem cells (NSCs) towards the tumor. This migration reflects the NSC wound repair response following CNS injury. Studies using NSCs surgically implanted into GBM tumors showed decreased tumor growth and increased animal survival in mice; however, the mechanisms underlying these anti-tumor properties of NSCs are …
Effects Of Leptin On Established Glioblastoma Cell Lines, Nicholas J. Cook
Effects Of Leptin On Established Glioblastoma Cell Lines, Nicholas J. Cook
All NMU Master's Theses
Glioblastoma is one of the most difficult cancers to treat because it is aggressive and resistant to therapy. The discovery of new therapeutic targets is drastically needed as zero improved treatment options have been added to the standard of care over the past 15 years. New and promising therapeutic targets are arising from psychosocial and environmental enrichment studies examining the role of stress in cancer progression. In animal models, eustress appears to slow tumor growth and recurrence resulting in increased overall survival and progression free survival while distress is associated with decreased overall survival. The cellular pathways activated by eustress …