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Articles 1 - 6 of 6
Full-Text Articles in Biology
The Role Of Med12 In Adipogenesis, Caroline Helen Rinderle
The Role Of Med12 In Adipogenesis, Caroline Helen Rinderle
Master's Theses
In order for any function to occur within a cell, transcription factors must be able to interact with genes. When this occurs, genes are expressed, and ultimately, proteins are translated and perform the specific function that needs to be done within the cell. In order for this to occur, genes must interact with transcription machinery. The Mediator complex recruits transcription factors to genes in order to promote cell-type specific gene expression. The Mediator complex is a multi-protein complex consisting of four modules: head, middle, tail, and kinase. The kinase module is known to dissociate from the rest of the complex …
The Role Of Med31 And Med12 In Directing Adipogenesis Of Human Adult-Derived Mesenchymal Stem Cells, Joseph Straub
The Role Of Med31 And Med12 In Directing Adipogenesis Of Human Adult-Derived Mesenchymal Stem Cells, Joseph Straub
Master's Theses
Selective gene expression is crucial in maintaining the self-renewing and multipotent properties of stem cells. Mediator is a large, evolutionarily conserved, multisubunit protein complex that modulates gene expression by relaying signals from cell type-specific transcription factors to RNA polymerase II. In humans, this complex consists of 30 subunits arranged in four modules: head, middle, tail, and kinase. In our introduction, we show the state of the field of Mediator study with a focus on the critical kinase module. In the following chapters, we used siRNA knockdowns to investigate the roles of the highly-conserved core subunit MED31 and the kinase module …
Notch And Mediator Work Together To Direct Hasc Self-Renewal, Jaylen Mumphrey
Notch And Mediator Work Together To Direct Hasc Self-Renewal, Jaylen Mumphrey
Master's Theses
Stem cells are unique in that they possess totipotent, pluripotent, or multipotent differentiation capabilities and can also self-renew. Stem cells are in either a state of selfrenewal or differentiation, but never both. If we are able to gain a full understanding of the underlying mechanisms that allow stem cells to remain self-renewing and multipotent, we will better be able to control the fate of cells, ultimately allowing stem cells to be used to their full capabilities in regenerative medicine. My research focuses on MED12 and its effects on Notch signaling. Here we describe the expression profile and activity of MED12, …
The Role Of Med12 In Adipogenesis Of Human Adipose Stem Cells, Onyekachi Chinelo Idigo
The Role Of Med12 In Adipogenesis Of Human Adipose Stem Cells, Onyekachi Chinelo Idigo
Master's Theses
The interest in adipogenesis stems from the high rate of obesity in the world and the motivation to better understand the process of cell fate in relation to human diseases. Mutations in MED12 lead to developmental disorders and certain malignancies. To date, specific roles of Mediator and MED12 in cell state regulation are unclear, nevertheless, they are critical for understanding stem cell regulation and enhancement of their clinical applications. This study investigates the role of MED12 in relation to the Mediator complex kinase domain to better understand transcriptional control of adipogenesis in hASCs. In this study, MED12 expression was diminished …
Using Crispr-Cas9 As A Restriction Enzyme, Zack Crawley
Using Crispr-Cas9 As A Restriction Enzyme, Zack Crawley
Master's Theses
Restriction digests are a commonly utilized process for cleaving DNA at specific, but relatively common sites. Restriction enzymes have widespread use in DNA manipulation. CRISPR/Cas9 is a recently identified endonuclease which utilizes a customizable guide sequence to recognize and cut specific ~20 bp sites located in a DNA sequence. This preliminary research aimed to exploit the potential benefit of DNA restriction using the CRISPR/Cas9 procedure through alterations of different components involved in that system. We sought to refine existing CRISPR/Cas9 protocols and make a budget friendly, user-selectable CRISPR/Cas9 restriction digest protocol. The motivation for this research was to simplify and …
Heat Activation Of Bacillus Anthracis Persists Over A Seven Day Period, Nathan T. Ross
Heat Activation Of Bacillus Anthracis Persists Over A Seven Day Period, Nathan T. Ross
Master's Theses
Bacteria of the Bacillus genera are capable of forming dormant and resilient cells called spores in response to starvation. Spores can break dormancy in the presence of nutrients in a process called germination. Historically, spores are exposed to sublethal heat treatments to increase the extent and rate of germination. This process is known as heat activation (HA). Previous studies on Bacillus species indicate the effects of HA are reversible after 72 hours. After this time period, the spores must be reactivated. However, spores of Bacillus anthracis, a member of the Bacillus family, have not been tested to see how long …