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Full-Text Articles in Medicine and Health Sciences
The Effects Of Autophagy And Senescence On Sensitivity To Cisplatin In Head And Neck Cancer, Zara H. Siddiqui
The Effects Of Autophagy And Senescence On Sensitivity To Cisplatin In Head And Neck Cancer, Zara H. Siddiqui
Theses and Dissertations
While current treatments in cancer, such as chemotherapy and radiation, can generally be effective in eliminating disease in patients, there also exists the possibility of recurrence of cancer cells over time. In patients diagnosed with locally advanced head and neck carcinoma, about 50-60% develop a loco-regional recurrence within two years, and 20-30% of patients develop metastatic disease at distant sites in the body [5]. On a cellular level, one mechanism for this survival may be that natural mechanisms such as autophagy and senescence play a role in allowing cells to survive after undergoing treatment. One standard of care chemotherapy for …
Exploring The Regulatory Mechanism Of The Notch Ligand Receptor Jagged1 Via The Aryl Hydrocarbon Receptor In Breast Cancer, Sean Alan Piwarski
Exploring The Regulatory Mechanism Of The Notch Ligand Receptor Jagged1 Via The Aryl Hydrocarbon Receptor In Breast Cancer, Sean Alan Piwarski
Theses, Dissertations and Capstones
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that binds pollutants, therapeutic drugs and endogenous ligands. AHR is of particular interest in cancer and has been shown to play roles in both tumor progression and tumor suppression. As a result, it has received growing attention as a possible chemotherapeutic target. AHR is expressed in all breast cancer subtypes and can promote or inhibit breast cancer depending on the ligand it binds. The Notch signaling pathway is a highly conserved evolutionary pathway that plays extremely vital roles during development by regulating cell fate and differentiation. Notch signaling has increasingly …
The Interaction Of Homoserine Lactones And Paraoxonase 2 Modulates Cell Death Signaling And Cell Proliferation., Aaron Mackallan Neely
The Interaction Of Homoserine Lactones And Paraoxonase 2 Modulates Cell Death Signaling And Cell Proliferation., Aaron Mackallan Neely
Electronic Theses and Dissertations
Pseudomonas aeruginosa produces N-(3-oxododecanoyl)-homoserine lactone (C12) as a quorum-sensing molecule that functions to facilitate bacteria-bacteria communication. C12 has also been reported to affect many aspects of human host cell physiology, including evoking cell death in various types of cells. However, the signaling pathway(s) leading to C12-triggerred cell death remains unclear. To clarify cell death signaling induced by C12, we examined mouse embryonic fibroblasts (MEFs) deficient in one or more caspases. Our data indicate that, unlike most apoptotic inducers, C12 evokes a novel form of apoptosis in cells, probably through the direct induction of mitochondrial membrane permeabilization. Importantly, C12 induces apoptosis …
Structural Instability Of Human Ribosomal Rna Gene Clusters, Dawn Michelle Stults
Structural Instability Of Human Ribosomal Rna Gene Clusters, Dawn Michelle Stults
University of Kentucky Doctoral Dissertations
The human ribosomal RNA genes are critically important for cell metabolism and viability. They code for the catalytic RNAs which, encased in a housing of more than 80 ribosomal proteins, link together amino acids by peptide bonds to generate all cellular proteins. Because the RNAs are not repeatedly translated, as is the case with messenger RNAs, multiple copies are required. The genes which code for the human ribosomal RNAs (rRNAs) are arranged as clusters of tandemly repeated sequences. Three of four catalytic RNAs are spliced from a single transcript. The genes are located on the short arms of the five …