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Articles 1 - 9 of 9
Full-Text Articles in Biochemistry
Variations On A Theme: Intricacies Of Unanchored Poly-Ubiquitin Signaling And Toxicity, Jessica Renee Blount-Pacheco
Variations On A Theme: Intricacies Of Unanchored Poly-Ubiquitin Signaling And Toxicity, Jessica Renee Blount-Pacheco
Wayne State University Dissertations
Ubiquitin is an 8.5 kDa post-translational modifier involved in essentially all eukaryotic cellular processes. Through a process called ubiquitination, ubiquitinating enzymes chemically attach ubiquitin to substrate proteins to control their fates, resulting in anything from their recruitment into signaling pathways to their proteasomal degradation, with a plethora of possibilities in between. Ubiquitin molecules can also be attached to one another, resulting in poly-ubiquitin chains with various effects depending on the number of ubiquitin molecules and the specific amino acid residues used to link them together. While most poly-ubiquitin in the cell exists as conjugated species, there are also untethered poly-ubiquitin …
Effect Of Oil Palm Phenolics (Opp) On Pancreatic Cancer Cell Lines, Inaam Abdul Karim
Effect Of Oil Palm Phenolics (Opp) On Pancreatic Cancer Cell Lines, Inaam Abdul Karim
Wayne State University Theses
Pancreatic cancer (paca) is currently the fifth causes of cancer-related deaths in the United States. It’s an aggressive form of cancer with very low survival rates because of delayed diagnosis and limited treatment options. Gemcitabine is the chemotherapy drug that provides minimal benefits along with many side effects. The aim of this study was to examine the in vitro effects of oil palm phenolics (OPP) fraction-5, the water-soluble component of palm oil, in human pancreatic cancer cell models. Two pancreatic cancer cell lines (Panc-1 and BxPC-3) were categorized into control and treatment groups. The control group received cell culture media …
Carbohydrate-Based Inducers Of Cellular Stress For Targeting Cancer Cell Metabolism, Fidelis Ndombera
Carbohydrate-Based Inducers Of Cellular Stress For Targeting Cancer Cell Metabolism, Fidelis Ndombera
Wayne State University Dissertations
ABSTRACT
CARBOHYDRATE-BASED INDUCERS OF CELLULAR STRESS FOR TARGETING CANCER CELL METABOLISM
by
FIDELIS TOLOYI NDOMBERA
May 2018
Advisor: Dr. Young-Hoon Ahn
Major: Chemistry (Biochemistry)
Degree: Doctor of Philosophy
Metabolic reprogramming and redox control of cancer cells is vital for their proliferation, but also provides selective strategies for treating cancer. Increased generation of reactive oxygen species (ROS) and an intricate control of redox status in cancer cells relative to normal cells provide a basis for designing ROS-inducing anticancer agents. In my work, I designed, synthesized and evaluated carbohydrate-based small molecules for ROS-generation, cytotoxicity and redox signaling and stress response. Our data …
Studies Of Sumoylation In Regulating Mif Stability And Rangap1 Nucleo-Cytoplasmic Shuttling In Controlling Its Sumo Modification, Progga Sen
Wayne State University Dissertations
SUMOylation is an essential post-translational modification that regulates a variety of critical cellular pathways ranging from nuclear transport to protein stability. Accumulating lines of evidence have shown that a perturbation of the SUMOylation pathway is associated with human diseases, especially various types of cancer. Our recent proteomic studies revealed a drastic increase in levels of SUMO2/3 modification on the proinflammatory cytokine MIF in the metastatic breast cancer cell line compared to the non-metastatic control cell line. Interestingly, the increase in levels of both MIF and global SUMO-2/3 modification in the metastatic cells are positively correlated to that of unmodified MIF …
Studies Towards Broadening The Substrate Profile And Regulation Of Histone Deacetylase 1, Dhanusha Ashanthi Nalawansha
Studies Towards Broadening The Substrate Profile And Regulation Of Histone Deacetylase 1, Dhanusha Ashanthi Nalawansha
Wayne State University Dissertations
Aberrant expression of histone deacetylase 1 (HDAC1) is implicated in multiple diseases, including cancer. As a consequence, HDAC1 has emerged as an important therapeutic target for drug development. HDAC1 regulates key cellular processes, such as cell proliferation, apoptosis, and cell survival, by deacetylating both histone and non-histone substrates. Due to the lack of simple tools to identify physiological substrates of HDAC1, the full spectrum of HDAC1 activities in the cell remains unclear. Here, we employed a substrate trapping strategy to identify cellular substrates of HDAC1. Using this approach, we identified mitosis-related protein Eg5 as a substrate. HDAC1 colocalizes with Eg5 …
Effect Of Long Term Rapamycin Treatment On Mtor Signalling Network In Colon And Liver Of C57bl/6 Mice, John Sorge
Effect Of Long Term Rapamycin Treatment On Mtor Signalling Network In Colon And Liver Of C57bl/6 Mice, John Sorge
Wayne State University Theses
Many studies have investigated the effects of rapamycin on aging and cancer. However, the effects of long-term rapamycin supplementation on a cancer model have not been performed. This is the first study that investigates the effects of long-term supplementation of rapamycin in a cancer model. ACF analysis of colon tissues in mice showed no significant difference between controls and those supplemented with rapamycin. Factors such as energy balance, cellular environment, PI3K/Akt/mTOR pathway, and more have been assessed in this study. The duration of rapamycin supplementation seems to play an important role in the protection against cancer. Ultimately, this study suggests …
Optimization Of Labeling Techniques; Determination Of Best Parameter For Olfactory Mucosal Progenitor Cell Delivery And Study Of Effects Of Methylene Blue And Polyethylene Glycol In An Animal Model Of Spinal Cord Injury, Kiran Kumar Rokkappanavar
Optimization Of Labeling Techniques; Determination Of Best Parameter For Olfactory Mucosal Progenitor Cell Delivery And Study Of Effects Of Methylene Blue And Polyethylene Glycol In An Animal Model Of Spinal Cord Injury, Kiran Kumar Rokkappanavar
Wayne State University Theses
In the United States, the incidence of TSCI is about 40 per million persons per year, with approximately 250,000 living survivors of TSCI in the United States in July 2005. A number of human clinical trials (85) are ongoing using stem cells to evaluate the methods to reduce the injury following TBI. Among the stem cells, olfactory mucosal progenitor cells have several advantages with respect to ease of obtaining, fate of cells, etc. Our study was intended to optimize the labeling technique and to determine the best parameter to deliver the stem cells to the site of injury. We found …
The Role Of Cad,Flash And Fam129b In Cancer Cell Survial And Apoptosis, Song Chen
The Role Of Cad,Flash And Fam129b In Cancer Cell Survial And Apoptosis, Song Chen
Wayne State University Dissertations
Apoptosis is a normal process in the human body. However, apoptosis is desregulated in cancer cells. Most cancer cells gain resistance to apoptosis, leading to uncontrolled proliferation. In this dissertation, we identified three proteins, associated with apoptosis pathway. 1) CAD, a large multifunctional complex that is invariably elevated in tumor cells, 2) FLASH, a large protein with multiple growth related functions and 3) FAM129B. We demonstrate that CAD could interact with FLASH by using yeast two hybrid, co-immunopreciptation and fluorescence microscopy. In addition, functional analysis using siRNA technology further indicated that CAD could co-operate with FLASH and play roles in …
Cardiac Calsequestrin Phosphorylation And Trafficking In The Mammalian Cardiomyocyte, Timothy Mcfarland
Cardiac Calsequestrin Phosphorylation And Trafficking In The Mammalian Cardiomyocyte, Timothy Mcfarland
Wayne State University Dissertations
Cardiac CSQ (CSQ2) is a multifaceted protein, capable of binding significant quantities of Ca2+ and altering ryanodine receptor activity at the junctional sarcoplasmic reticulum (SR). Little is known about the trafficking of CSQ2 from its unknown site of biosynthesis, which appears to be of importance as its structure changes in a trafficking-dependent manner in various types of heart failure. Through the use of multiple antibodies specific to classic rough ER markers, and with the creation of CSQ-DsRed tetramer fusion protein, we were able to establish a juxtanuclear localization of rough ER in cardiomyocytes. Using fluorescence confocal microscopy, the translocon complex …