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Articles 1 - 6 of 6
Full-Text Articles in Medical Sciences
Role Of Phosphorylated Dicer1 In Tumor Progression, Raisa Reyes-Castro
Role Of Phosphorylated Dicer1 In Tumor Progression, Raisa Reyes-Castro
Dissertations & Theses (Open Access)
DICER1 is a multidomain enzyme discovered and widely recognized for its function in small non-coding microRNA (miRNA) synthesis. In cancer development, DICER1 functions as a haploinsufficient tumor suppressor which regulates miRNAs and Epithelial-to-Mesenchymal Transition (EMT). The Arur laboratory discovered that DICER1 is phosphorylated by active ERK and that ERK-mediated phosphorylation triggers DICER1 to translocate from the cytoplasm to the nucleus of cells in worms, mice and humans. Further, a heterozygous allele of a genetically engineered mouse model of phosphomimetic Dicer1 when combined with heterozygous Kras oncogenic background contributes to lung tumor progression in vivo. Mechanisms through which phosphomimetic Dicer1 …
The Development Of Artificial Intelligence-Based Tools For Expert Peer Review Of Radiotherapy Treatment Plans, Mary Gronberg
The Development Of Artificial Intelligence-Based Tools For Expert Peer Review Of Radiotherapy Treatment Plans, Mary Gronberg
Dissertations & Theses (Open Access)
Creating a patient-specific radiation treatment plan is a time-consuming and operator-dependent manual process. The treatment planner adjusts the planning parameters in a trial-and-error fashion in an effort to balance the competing clinical objectives of tumor coverage and normal tissue sparing. Often, a plan is selected because it meets basic organ at risk dose thresholds for severe toxicity; however, it is evident that a plan with a decreased risk of normal tissue complication probability could be achieved. This discrepancy between “acceptable” and “best possible” plan is magnified if either the physician or treatment planner lacks focal expertise in the disease site. …
Automating The Radiation Therapy Treatment Planning Process For Pediatric Patients With Medulloblastoma, Soleil Hernandez
Automating The Radiation Therapy Treatment Planning Process For Pediatric Patients With Medulloblastoma, Soleil Hernandez
Dissertations & Theses (Open Access)
Over the past 50 years, pediatric cancer 5-year survival rates increased from 20% to 80% in high-income countries, however, these trends have not been mirrored in low-and-middle-income countries (LMICs). This is due in part to delayed diagnosis, higher rates of advanced disease at presentation and a growing lack of access to high quality medical personnel and technology necessary to deliver complex treatments.
The long-term goal of this study was to alleviate demanding workflows and increase global access to high-quality pediatric radiation therapy by harnessing the power of artificial intelligence to automate the radiation therapy treatment planning process for pediatric patients …
Lymphatic Dysfunction And Associated Systemic Inflammation In Lymphedema, Assessed By Nirf-Li Imaging And Plasma Cytokine/Chemokine Analysis, Anna Vang
Dissertations & Theses (Open Access)
Breast cancer-related lymphedema (BCRL) manifests as swelling of the upper extremities and trunk as a result of lymphatic fluid buildup due to radiation therapy (RT), surgical lymph node removal, or chemotherapy. As there is currently no cure, BCRL treatment aims to improve quality of life (QOL). First-line treatment involves specialized massage therapy and the use of compression garments. Second-line treatments include reparative lymphatic microsurgeries such as lymphovenous bypass (LVB) and/or vascularized lymph node transplant (VLNT). There is a need for better understanding of the etiology of BCRL and lymphatic microsurgery outcomes. Blood specimens and near-infrared fluorescent lymphatic imaging (NIRF- LI)data …
Adipocytes And Innate Immunity In Systemic Sclerosis, Nancy Wareing
Adipocytes And Innate Immunity In Systemic Sclerosis, Nancy Wareing
Dissertations & Theses (Open Access)
Systemic sclerosis (SSc; scleroderma) is a chronic systemic autoimmune and connective tissue disorder characterized by vasculopathy, autoimmune phenomena, and widespread fibrosis. Skin thickening and tightening is the cardinal feature of SSc and is responsible, in part, for the considerable morbidity of this disease. There are currently no targeted treatments for skin manifestations in SSc, primarily due to our fragmented understanding of its pathophysiologic mechanisms. In PART I, we report a previously unappreciated link between aberrant expression of the developmental gene sine oculis homeobox homolog 1 (SIX1) in skin-associated adipocytes in SSc skin and the early loss of dermal white adipose …
Uncovering Novel Mechanism Of Immune Modulation Of Invariant Natural Killer T Cells By Liposomal Α-Galactosylceramide, Alexandra S. Flegle
Uncovering Novel Mechanism Of Immune Modulation Of Invariant Natural Killer T Cells By Liposomal Α-Galactosylceramide, Alexandra S. Flegle
Dissertations & Theses (Open Access)
Invariant Natural Killer T cells (iNK-T cells) are a powerful regulatory immune cell that can recruit both innate and adaptive immune cells. Unlike conventional T cells (CD4+ and CD8α+), they recognize glycolipid antigens via the MHC-class-I like molecule, CD1d. A synthetically derived glycolipid from the marine sponge, Agelas mauritianus, alpha-Galactosylceramide (α-GalCer) potently activates iNK-T cells. Within a few hours after activation, iNK-T cells produce high quantities of TH1 and TH2 type cytokines, thus shape subsequent adaptive immunity towards inflammation (TH1) or immune-suppression (TH2). Structural modification of α-GalCer’s phytosphingosine …