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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Elucidating The Role Of The Tyrosine Phosphatase, Shp-2, In Regulation Of Pd-L1 Expression In Non-Small Lung Cancer Using Both Biochemical Analyses And Real-World Genomic Information, Keller Toral
Theses and Dissertations--Pharmacy
Immune checkpoint inhibitors (ICIs), especially those that target programmed cell death protein 1 (PD-1) and programmed cell death ligand-1 (PD-L1), have been shown to provide substantial clinical benefit in many patients with non-small cell lung cancer (NSCLC). While these therapeutic agents can be highly effective in the correct context, the biological systems that malignant cells draft from normal activities of the cell are poorly characterized. Tumor cell-specific expression of PD-L1 is likely important for clinical benefit from PD-1 and PD-L1 inhibitors. It is known that PD-L1 is inappropriately expressed in many cancers harboring mutations in the RAS family of genes. …
Human Regulatory T Cells Control Inflammation From Effector T Cells In Prediabetes, Rui Liu
Human Regulatory T Cells Control Inflammation From Effector T Cells In Prediabetes, Rui Liu
Theses and Dissertations--Pharmacy
Type 2 diabetes (T2D) is a chronic low-grade inflammatory disease. A T cell cytokine profile (Th17) from PBMCs can distinguish obese T2D from obese non-diabetes subjects. Individual T cell subsets interact with each other and the diverse subsets jointly determine overall inflammation. Cellular metabolism drives cytokine production of CD4+ T cells, and therefore contributes to inflammation in T2D. However, specific changes in metabolism and function of CD4+ T cells during the progression from lean healthy to obese and diabetic stages in people have not been clarified.
We hypothesize that human regulatory T cells (Treg) impact metabolism of effector …
Abc Transporters In Glioblastoma: Anticancer Drug Transport And Transporter Regulation At The Blood-Brain Barrier, Julia A. Schulz
Abc Transporters In Glioblastoma: Anticancer Drug Transport And Transporter Regulation At The Blood-Brain Barrier, Julia A. Schulz
Theses and Dissertations--Pharmacy
Glioblastoma is one of the deadliest cancers, with a median survival of only one year. Even after aggressive treatment consisting of surgical resection, radiation, and chemotherapy, most glioblastoma patients suffer from tumor recurrence within 6-9 months. One reason for treatment failure of anticancer drugs is the blood-brain barrier that protects the brain by impeding xenobiotic uptake from the blood. To this end, efflux transporters at the human blood-brain barrier, such as P-glycoprotein (ABCB1) and Breast Cancer Resistance Protein (ABCG2), prevent many compounds, including anticancer drugs, from entering the brain. Thus far, approaches to deliver anticancer drugs across the blood-brain barrier …
Mechanisms Of Cadmium-Induced And Epidermal Growth Factor Receptor Mutation-Driven Lung Tumorigenesis, Hsuan-Pei Lin
Mechanisms Of Cadmium-Induced And Epidermal Growth Factor Receptor Mutation-Driven Lung Tumorigenesis, Hsuan-Pei Lin
Theses and Dissertations--Toxicology and Cancer Biology
Cadmium (Cd) is a ubiquitous pollutant in the environment and a known carcinogen for lung cancer. Cd has been shown to act as a weak mutagen, which suggests that it may exert tumorigenic effect through non-genotoxic ways, such as epigenetic mechanisms. The goal of this project is to investigate the mechanisms of Cd carcinogenesis focusing on the role of lncRNA dysregulations. The Cd-exposed cells formed significantly more colonies in soft agar, displayed cancer stem cell (CSC)-like property and formed tumors in nude mice. Mechanistically, the lncRNA microarray analysis revealed that chronic Cd exposure dysregulates lncRNA expressions. Q-PCR analysis confirmed the …
Science-Based Regulation Of Pharmacological Substances In Competition Horses, Jacob Machin
Science-Based Regulation Of Pharmacological Substances In Competition Horses, Jacob Machin
Theses and Dissertations--Toxicology and Cancer Biology
Current testing methodologies within equine forensic toxicology focus on arbitrary thresholds and zero-tolerance policy. Modern analytical chemistry’s limits of detection are low enough that oftentimes femtogram-per-milliliter amounts of a substance can readily be identified in both blood and urine of a horse. For most pharmacologically relevant compounds, these concentrations have no relevance to pharmacological effect. It is therefore crucial that testing methodologies to determine appropriate thresholds and cut-offs be developed that are driven by biological activity rather than arbitrary limits of detection. This dissertation looks to address this by suggesting a system of calculated Effective Plasma Concentrations by which a …
Maternal Proximity To Mountaintop Removal Mining And Birth Defects In Appalachian Kentucky, 1997-2003, Daniel B. Cooper
Maternal Proximity To Mountaintop Removal Mining And Birth Defects In Appalachian Kentucky, 1997-2003, Daniel B. Cooper
Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)
Background: Extraction of coal through mountaintop removal mining (MTR) alters many dimensions of the landscape, and explosive blasts, exposed rock, and coal washing have the potential to pollute air and water with substances known to increase risk of developmental and birth anomalies. Previous research suggests that infants born to mothers living in MTR coal mining counties have higher prevalence of most types of birth defects.
Objectives: This study seeks to examine further the relationship between MTR activity and birth defects by employing individual level exposure estimation through precise satellite data of MTR activity in the Appalachian region and maternal residence …