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Medicine and Health Sciences

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University of Louisville

Electronic Theses and Dissertations

Theses/Dissertations

2017

Chemotherapy

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Targeting The Major Regulator Of Mitosis., J. Mason Hoffman Dec 2017

Targeting The Major Regulator Of Mitosis., J. Mason Hoffman

Electronic Theses and Dissertations

Mitosis-inhibiting chemotherapeutics (e.g. taxanes) are frequently used to treat multiple cancer types. Recently, there has been much concern about the limited success of these drugs due to resistance and a lack of molecular targets. Thus, there is high demand for new drugs with diverse cellular targets. Targeting the regulators of mitosis is a promising approach. The anaphase promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle progression at multiple points. The interaction of ANAPC2 and ANAPC11, catalytic core subunits, is necessary for APC/C function. An in silico approach was used to identify compounds predicted to prevent assembly …


Inhibition Of Chemotherapeutic-Induced Apoptosis In Esophageal Squamous Cancer Cells By The Keystone Periodontal Pathogen, Porphyromonas Gingivalis., Atul Kumar Agrawal May 2017

Inhibition Of Chemotherapeutic-Induced Apoptosis In Esophageal Squamous Cancer Cells By The Keystone Periodontal Pathogen, Porphyromonas Gingivalis., Atul Kumar Agrawal

Electronic Theses and Dissertations

Recent evidence has shown that P. gingivalis, a Gram-negative, anaerobic oral bacterium, is negatively associated with the presence and outcome of esophageal squamous cell carcinoma (ESCC). While potential underlying mechanisms are yet to be established, P. gingivalis infection is known to inhibit apoptosis in gingival epithelial cells. Therefore, we hypothesized that P. gingivalis may also inhibit of the induction of apoptosis in human ESCC cells exposed to the commonly employed anti-ESCC chemotherapeutic agent, cisplatin. The capacity of P. gingivalis, at variant multiplicities of infection, to suppress cisplatin-induced necrosis and apoptosis in EC9706 ESCC cells was established by lactate …