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Articles 1 - 5 of 5
Full-Text Articles in Cell Biology
Actinomycin D And Telmisartan Combination Therapy Targets Lung Cancer Stem Cells, Ryan Green
Actinomycin D And Telmisartan Combination Therapy Targets Lung Cancer Stem Cells, Ryan Green
USF Tampa Graduate Theses and Dissertations
The failure of lung cancer treatments has been attributed partly to the development of drug resistance, however the underlying cellular and molecular mechanisms are poorly understood. It has been suggested that a very small group of specific cells within the heterogeneous tumors, cancer initiating stem cells (CSC), develop resistance to treatment, survive and later initiate the growth of new tumors. Due to their pivotal role in maintenance and relapse of tumors following the acquisition of drug resistance, we reasoned that novel drugs targeting cancer cells and CSC might provide the most effective treatments, if not a cure. To this end, …
Fatty Acid Amides And Their Biosynthetic Enzymes Found In Insect Model Systems, Ryan L. Anderson
Fatty Acid Amides And Their Biosynthetic Enzymes Found In Insect Model Systems, Ryan L. Anderson
USF Tampa Graduate Theses and Dissertations
A fatty acid amide is precisely as the name suggests: A fatty acid (CHn-COOH), in which the hydroxyl group of the carboxylic acid is displaced by an amine functional group from a biogenic amine (R-NH2), ultimately forming an amide bond. Furthermore, these fatty acid amides can be composed of a variety of different acyl chain lengths donated by the fatty acid and a myriad of different biogenic amines. Thus, these molecules can be subdivided in a number of different ways including the separation of short chain (acetyl to heptanoyl) and long chain (palmitoyl to arachidonoyl) and also based off the …
Investigating The Roles Of Fucosylation And Calcium Signaling In Melanoma Invasion, Tyler S. Keeley
Investigating The Roles Of Fucosylation And Calcium Signaling In Melanoma Invasion, Tyler S. Keeley
USF Tampa Graduate Theses and Dissertations
Melanoma is the deadliest form of skin cancer. Prognosis for early stage melanoma patients is excellent, and surgery is often curative for these patients. However, once patients have presented with invasive disease, the average 5-year survival rate drops significantly from over 90% to between 10 and 15%. Several therapies have been developed to target a commonly mutated oncogene BRAF, or its downstream effectors. Unfortunately, while these treatments show robust initial response, most patients relapse within a year. Moreover, therapy-resistant tumors are often more invasive and metastatic. Therefore, it is important to investigate the molecular mechanisms underlying melanoma invasion and metastasis, …
The Role Of Phosphohistidine Phosphatase 1 In Ethanol-Induced Liver Injury, Daniel Richard Martin
The Role Of Phosphohistidine Phosphatase 1 In Ethanol-Induced Liver Injury, Daniel Richard Martin
USF Tampa Graduate Theses and Dissertations
Chronic liver diseases, which includes alcoholic liver disease (ALD), are consistently among the top 15 leading causes of death in the United States. ALD is characterized by progression from a normal liver to fatty liver disease (hepatic steatosis), which can lead to cirrhosis, alcoholic hepatitis, and liver failure. We have identified a novel role of phosphohistidine signaling, mediated through phosphohistidine phosphatase 1 (PHPT1), in the onset of hepatic steatosis. We have identified PHPT1 as a target of selective oxidation following acute ethanol exposure as well as being downregulated following chronic ethanol exposure. We mapped the oxidative modification site and developed …
Investigation Of Alcohol-Induced Changes In Hepatic Histone Modifications Using Mass Spectrometry Based Proteomics, Crystina Leah Kriss
Investigation Of Alcohol-Induced Changes In Hepatic Histone Modifications Using Mass Spectrometry Based Proteomics, Crystina Leah Kriss
USF Tampa Graduate Theses and Dissertations
Alcohol liver disease (ALD) is a major health concern throughout the world. Currently, in the United States, 17 million people suffer from alcoholism, of which 1.4 million people are receiving treatment [1, 2]. The link between ethanol metabolism, reactive oxygen species (ROS) and liver injury in ALD has been well characterized over the last couple decades [3-10]. Ethanol metabolism relies on the availability of the cofactor NAD+ for the oxidation of ethanol into acetate, consequently causing alterations in redox potential. Redox dysfunction within the mitochondria can affect multiple pathways important in maintaining cellular homeostasis. Chapter 1 provides an introduction to …