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Articles 1 - 26 of 26
Full-Text Articles in Medicine and Health Sciences
Transcription Factor Bach1 In Cancer: Roles, Mechanisms, And Prospects For Targeted Therapy, Dian Hu, Zerui Zhang, Xiangyuan Luo, Siwen Li, Junqing Jiang, Jiaqian Zhang, Zhangfan Wu, Yijun Wang, Mengyu Sun, Xiaoping Chen, Bixiang Zhang, Xiao Xu, Shuai Wang, Shengjun Xu, Yufei Wang, Wenjie Huang, Limin Xia
Transcription Factor Bach1 In Cancer: Roles, Mechanisms, And Prospects For Targeted Therapy, Dian Hu, Zerui Zhang, Xiangyuan Luo, Siwen Li, Junqing Jiang, Jiaqian Zhang, Zhangfan Wu, Yijun Wang, Mengyu Sun, Xiaoping Chen, Bixiang Zhang, Xiao Xu, Shuai Wang, Shengjun Xu, Yufei Wang, Wenjie Huang, Limin Xia
Student and Faculty Publications
Transcription factor BTB domain and CNC homology 1 (BACH1) belongs to the Cap 'n' Collar and basic region Leucine Zipper (CNC-bZIP) family. BACH1 is widely expressed in mammalian tissues, where it regulates epigenetic modifications, heme homeostasis, and oxidative stress. Additionally, it is involved in immune system development. More importantly, BACH1 is highly expressed in and plays a key role in numerous malignant tumors, affecting cellular metabolism, tumor invasion and metastasis, proliferation, different cell death pathways, drug resistance, and the tumor microenvironment. However, few articles systematically summarized the roles of BACH1 in cancer. This review aims to highlight the research status …
Sptan1/Numb Axis Senses Cell Density To Restrain Cell Growth And Oncogenesis Through Hippo Signaling, Dongxue Su, Yuxi Li, Weiji Zhang, Huan Gao, Yao Cheng, Yongqiang Hou, Junhong Li, Yi Ye, Zhangjian Lai, Zhe Li, Haitao Huang, Jiaxin Li, Jinhuan Li, Mengyu Cheng, Cheng Nian, Na Wu, Zhien Zhou, Yunzhi Xing, Yu Zhao, He Liu, Jiayu Tang, Qinghua Chen, Lixin Hong, Wengang Li, Zhihai Peng, Bin Zhao, Randy L Johnson, Pingguo Liu, Wanjin Hong, Lanfen Chen, Dawang Zhou
Sptan1/Numb Axis Senses Cell Density To Restrain Cell Growth And Oncogenesis Through Hippo Signaling, Dongxue Su, Yuxi Li, Weiji Zhang, Huan Gao, Yao Cheng, Yongqiang Hou, Junhong Li, Yi Ye, Zhangjian Lai, Zhe Li, Haitao Huang, Jiaxin Li, Jinhuan Li, Mengyu Cheng, Cheng Nian, Na Wu, Zhien Zhou, Yunzhi Xing, Yu Zhao, He Liu, Jiayu Tang, Qinghua Chen, Lixin Hong, Wengang Li, Zhihai Peng, Bin Zhao, Randy L Johnson, Pingguo Liu, Wanjin Hong, Lanfen Chen, Dawang Zhou
Student and Faculty Publications
The loss of contact inhibition is a key step during carcinogenesis. The Hippo-Yes-associated protein (Hippo/YAP) pathway is an important regulator of cell growth in a cell density-dependent manner. However, how Hippo signaling senses cell density in this context remains elusive. Here, we report that high cell density induced the phosphorylation of spectrin α chain, nonerythrocytic 1 (SPTAN1), a plasma membrane-stabilizing protein, to recruit NUMB endocytic adaptor protein isoforms 1 and 2 (NUMB1/2), which further sequestered microtubule affinity-regulating kinases (MARKs) in the plasma membrane and rendered them inaccessible for phosphorylation and inhibition of the Hippo kinases sterile 20-like kinases MST1 and …
Cancer Cell-Specific Cgas/Sting Signaling Pathway In The Era Of Advancing Cancer Cell Biology, Vijay Kumar, Caitlin Bauer, John H. Stewart
Cancer Cell-Specific Cgas/Sting Signaling Pathway In The Era Of Advancing Cancer Cell Biology, Vijay Kumar, Caitlin Bauer, John H. Stewart
School of Graduate Studies Faculty Publications
Pattern-recognition receptors (PRRs) are critical to recognizing endogenous and exogenous threats to mount a protective proinflammatory innate immune response. PRRs may be located on the outer cell membrane, cytosol, and nucleus. The cGAS/STING signaling pathway is a cytosolic PRR system. Notably, cGAS is also present in the nucleus. The cGAS-mediated recognition of cytosolic dsDNA and its cleavage into cGAMP activates STING. Furthermore, STING activation through its downstream signaling triggers different interferon-stimulating genes (ISGs), initiating the release of type 1 interferons (IFNs) and NF-κB-mediated release of proinflammatory cytokines and molecules. Activating cGAS/STING generates type 1 IFN, which may prevent cellular transformation …
Targeting Cgas/Sting Signaling-Mediated Myeloid Immune Cell Dysfunction In Time, Vijay Kumar, Caitlin Bauer, John H. Stewart
Targeting Cgas/Sting Signaling-Mediated Myeloid Immune Cell Dysfunction In Time, Vijay Kumar, Caitlin Bauer, John H. Stewart
School of Graduate Studies Faculty Publications
Myeloid immune cells (MICs) are potent innate immune cells serving as first responders to invading pathogens and internal changes to cellular homeostasis. Cancer is a stage of altered cellular homeostasis that can originate in response to different pathogens, chemical carcinogens, and internal genetic/epigenetic changes. MICs express several pattern recognition receptors (PRRs) on their membranes, cytosol, and organelles, recognizing systemic, tissue, and organ-specific altered homeostasis. cGAS/STING signaling is a cytosolic PRR system for identifying cytosolic double-stranded DNA (dsDNA) in a sequence-independent but size-dependent manner. The longer the cytosolic dsDNA size, the stronger the cGAS/STING signaling activation with increased type 1 interferon …
Risk Factors Associated With Severe Clostridioides Difficile Infection In Patients With Cancer, Denise Marie A Francisco, Liangliang Zhang, Ying Jiang, Adilene Olvera, Javier Adachi, Eduardo Yepez Guevara, Samuel L Aitken, Kevin W Garey, Christine B Peterson, Kim-Anh Do, Ryan Dillon, Engels N Obi, Robert Jenq, Pablo C Okhuysen
Risk Factors Associated With Severe Clostridioides Difficile Infection In Patients With Cancer, Denise Marie A Francisco, Liangliang Zhang, Ying Jiang, Adilene Olvera, Javier Adachi, Eduardo Yepez Guevara, Samuel L Aitken, Kevin W Garey, Christine B Peterson, Kim-Anh Do, Ryan Dillon, Engels N Obi, Robert Jenq, Pablo C Okhuysen
Student and Faculty Publications
INTRODUCTION: Antibiotic use is a risk factor for Clostridioides difficile infection (CDI). Few studies have correlated use of prior antibiotic classes with CDI, microbiome composition, and disease severity in patients with cancer. We hypothesized that previous antibiotic exposure and fecal microbiome composition at time of presentation are risk factors for severe CDI in patients with cancer.
METHODS: This non-interventional, prospective, cohort study examined 200 patients with cancer who had their first episode or first recurrence of CDI. C. difficile was identified using nucleic acid amplification testing. Univariate analysis was used to determine significant risk factors for severe CDI. Fecal microbiome …
Defining The Cooperation Between Mhc-I And Mhc-Ii Neoantigen-Driven T Cell Responses To Develop Effective Personalized Immunotherapies, Charmelle Williams
Defining The Cooperation Between Mhc-I And Mhc-Ii Neoantigen-Driven T Cell Responses To Develop Effective Personalized Immunotherapies, Charmelle Williams
Dissertations & Theses (Open Access)
Immune checkpoint therapy (ICT) (e.g. anti-CTLA-4 (α-CTLA-4), anti-PD-1 (α-PD-1)) enables durable T cell-dependent anti-tumor immunity in certain cancer patients. Since a subset of patients respond to ICT, this work aims at developing a more in-depth understanding of T-cell responses to MHC class I (MHC-I) and MHC class II (MHC-II) tumor antigens that are derived from aberrant expression of non-mutant antigens or driver and passenger somatic alterations that can function as tumor neoantigens. We used a poorly immunogenic Brafv600e Pten-/- Cdkn2a-/- YUMM1.7 (Y1.7) murine melanoma line with a paucity of endogenous neoantigens that is unresponsive to ICT, and …
The Role Of Ifitm3 In The Immune Response Of Brca-Deficient High Grade Serous Ovarian Carcinoma, Han Cun
The Role Of Ifitm3 In The Immune Response Of Brca-Deficient High Grade Serous Ovarian Carcinoma, Han Cun
Dissertations & Theses (Open Access)
Background: Prior studies showed that BRCA-deficient high grade serous ovarian carcinoma (HGSOC) had increased tumor infiltrating lymphocytes (TILs) compared to BRCA-wildtype (WT). To better understand the underlying immune mechanism in these tumors, a preliminary transcriptome analysis was performed on a set of microdissected HGSOC tumor specimens with BRCA1-mutation, BRCA2-mutation, or WT. This demonstrated an upregulation of IFITM3, an essential gene in modulating immune function. Based on these findings, we hypothesized that BRCA-deficient HGSOC have increased DNA damage leading to upregulation of IFITM3 and subsequent increase in antigen presentation and T-cell activation.
Methods: Following IRB approval, preliminary transcriptome analysis was performed …
Metabolic-Epigenetic Regulation Of Macrophage Polarization., Jordan T. Noe
Metabolic-Epigenetic Regulation Of Macrophage Polarization., Jordan T. Noe
Electronic Theses and Dissertations
Tumor-associated macrophages polarized to an M2 phenotype (M2-TAMs) promote neo-angiogenesis, tumor-stromal matrix remodeling, and immuno-evasion, which, collectively, contribute to immunotherapeutic resistance and reduced cancer patient survival. Highly glycolytic “Warburg” cancer cells produce lactate that independently drives naïve M0→immunosuppressive M2 (M0→M2) macrophage polarization, but the mechanisms have not been fully elucidated. The atypical cytokine macrophage migration inhibitory factor (MIF) is a fundamental underlying requirement for immunosuppressive M2 macrophage polarization. Still, it is unknown whether a molecular link exists between lactate-supported and MIF-dependent M2 macrophage polarization. Using a combination of gene expression assays, chromatin immunoprecipitation, and metabolomic analyses, we identified that M2 …
[(Wr)8Wkβa]-Doxorubicin Conjugate: A Delivery System To Overcome Multi-Drug Resistance Against Doxorubicin, Khalid Zoghebi, Hamidreza Montazeri Aliabadi, Rakesh Kumar Tiwari, Keykavous Parang
[(Wr)8Wkβa]-Doxorubicin Conjugate: A Delivery System To Overcome Multi-Drug Resistance Against Doxorubicin, Khalid Zoghebi, Hamidreza Montazeri Aliabadi, Rakesh Kumar Tiwari, Keykavous Parang
Pharmacy Faculty Articles and Research
Doxorubicin (Dox) is an anthracycline chemotherapeutic agent used to treat breast, leukemia, and lymphoma malignancies. However, cardiotoxicity and inherent acquired resistance are major drawbacks, limiting its clinical application. We have previously shown that cyclic peptide [WR]9 containing alternate tryptophan (W) and arginine (R) residues acts as an efficient molecular transporter. An amphiphilic cyclic peptide containing a lysine (K) residue and alternative W and R was conjugated through a free side chain amino group with Dox via a glutarate linker to afford [(WR)8WKβA]-Dox conjugate. Antiproliferative assays were performed in different cancer cell lines using the conjugate and the …
Microbial Experience Influences Tumor- Infiltrating T Lymphocytes, Hanna Groeber
Microbial Experience Influences Tumor- Infiltrating T Lymphocytes, Hanna Groeber
Masters Theses
Immune cells, including T cells, have been used for anti-cancer therapy with varying degrees of success. One potential reason for immunotherapy failures in clinical trials may be that typical specific pathogen free (SPF) mice do not accurately replicate human microbial experience, which has important influence on shaping the adaptive immune response. Recently, several previous studies have shown that the immune system of SPF mice more closely resembles newborn human immunity, whereas immune systems from mice exposed to diverse pathogens more closely reflect adult human immunity.
To study the impact of microbial experience on the immune response, we have adopted a …
Comparative Molecular Transporter Properties Of Cyclic Peptides Containing Tryptophan And Arginine Residues Formed Through Disulfide Cyclization, Eman H. M. Mohammed, Dindyal Mandal, Saghar Mozaffari, Magdy Abdel-Hamied Zahran, Amany Mostafa Osman, Rakesh Kumar Tiwari, Keykavous Parang
Comparative Molecular Transporter Properties Of Cyclic Peptides Containing Tryptophan And Arginine Residues Formed Through Disulfide Cyclization, Eman H. M. Mohammed, Dindyal Mandal, Saghar Mozaffari, Magdy Abdel-Hamied Zahran, Amany Mostafa Osman, Rakesh Kumar Tiwari, Keykavous Parang
Pharmacy Faculty Articles and Research
We have previously reported cyclic cell-penetrating peptides [WR]5 and [WR]4 as molecular transporters. To optimize further the utility of our developed peptides for targeted therapy in cancer cells using the redox condition, we designed a new generation of peptides and evaluated their cytotoxicity as well as uptake behavior against different cancer cell lines. Thus, cyclic [C(WR)xC] and linear counterparts (C(WR)xC), where x = 4–5, were synthesized using Fmoc/tBu solid-phase peptide synthesis, purified, and characterized. The compounds did not show any significant cytotoxicity (at 25 µM) against ovarian (SK-OV-3), leukemia (CCRF-CEM), gastric adenocarcinoma (CRL-1739), breast …
How Can We Stop Cancer?, Joseph R. Current
How Can We Stop Cancer?, Joseph R. Current
The Review: A Journal of Undergraduate Student Research
Cancer is a disease that humans have been struggling to combat for centuries. It originates from the accumulation of several mutations over the life of a cell that causes it to evade cell death and multiply rapidly. It can affect any tissue in the body and can spread to other parts of the body through metastasis. Cancer comes in numerous shapes and sizes with different levels of aggression, growth speeds, and health risks. Many treatments for cancer exist today, three of the most popular being surgery, chemotherapy, and radiation therapy, which can be used in combinations with other treatments to …
Caspases And Cancer: Connections Through Circular Dichroism Spectroscopy, Sarah M. Hethcox
Caspases And Cancer: Connections Through Circular Dichroism Spectroscopy, Sarah M. Hethcox
Honors College Theses
While excessive cell death inevitably leads to negative effects, the endurance of damaged cells in the presence of death signals can be equally detrimental to health. Apoptosis, or programmed cell death, is a highly regulated process in which cues from within or from outside a cell can trigger an irreversible sequence of signals that carry out cell destruction known as the apoptotic cascade. A group of enzymes called caspases play a vital role in this cascade with some participating as initiators and others acting as effectors of protein cleavage and intracellular breakdown. Although it is normal for the activity of …
Roles Of Cytosolic Nucleic Acid Sensors In Cancer And Infection, Qifan Zhu
Roles Of Cytosolic Nucleic Acid Sensors In Cancer And Infection, Qifan Zhu
Theses and Dissertations (ETD)
Pattern recognition receptors are innate immune sensors that recognize pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs) with crucial roles in host defense against microbial infection, autoimmune diseases and cancer. Cytosolic nucleic acids including DNA and RNA originate from pathogens or self-cells, which form major groups of PAMPs and DAMPs. A range of nucleic acid sensors have evolved to sense various types of nucleic acids. How different DNA-sensing pathways regulate microbial infection and cancer is the focus of this dissertation.
Stimulator of IFN genes (STING) is a cytosolic innate immune sensor for cyclic dinucleotides that also serves a dual …
Determining The Effects Of Cancer Mutations On The Coactivator Function Of The P300 Core Domain In Human Cells, Katlyn Myers, Erin Shanle, Meagan St. John
Determining The Effects Of Cancer Mutations On The Coactivator Function Of The P300 Core Domain In Human Cells, Katlyn Myers, Erin Shanle, Meagan St. John
Selected Publications
In human cells, DNA is packed into chromosomes by wrapping around proteins called histones. Histone proteins contain chains of amino acids called histone tails and can be modified by acetylation. Acetylating histone proteins is important to the cell because it opens up the chromatin and allows for gene expression. Proteins can recognize and bind histone acetylation with a region called a bromodomain. p300 is a bromodomain-containing protein with histone acetyltransferase activity (HAT) which also aids with gene expression and is a coactivator protein of transcription. The bromodomain and HAT domain of this protein is considered the p300 core. Previous research …
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 …
Novel Insights Into The Contribution Of Cellular Senescence To Cancer Therapy: Reversibility, Dormancy And Senolysis., Tareq Saleh
Novel Insights Into The Contribution Of Cellular Senescence To Cancer Therapy: Reversibility, Dormancy And Senolysis., Tareq Saleh
Theses and Dissertations
Cellular senescence a specialized form of growth arrest that contributes to the pathogenesis of several aging-related disorders including cancer. While by definition tumor cells are considered immortalized, they can undergo senescence when exposed to conventional and targeted cancer therapy. Therapy-Induced Senescence (TIS) represents a fundamental response to therapy and impacts its outcomes. However, TIS has been considered a positive therapeutic goal since senescent tumor cells are expected to enter a state of permanent growth abrogation. In this work we examined the hypothesis that a subpopulation of senescent cells can re-acquire proliferative potential after a state of senescent dormancy, indicating that …
A Simple And Accurate Rule-Based Modeling Framework For Simulation Of Autocrine/Paracrine Stimulation Of Glioblastoma Cell Motility And Proliferation By L1cam In 2-D Culture., Justin Caccavale, David Fiumara, Michael Stapf, Liedeke Sweitzer, Hannah J. Anderson, Jonathan Gorky, Prasad Dhurjati, Deni S. Galileo
A Simple And Accurate Rule-Based Modeling Framework For Simulation Of Autocrine/Paracrine Stimulation Of Glioblastoma Cell Motility And Proliferation By L1cam In 2-D Culture., Justin Caccavale, David Fiumara, Michael Stapf, Liedeke Sweitzer, Hannah J. Anderson, Jonathan Gorky, Prasad Dhurjati, Deni S. Galileo
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
BACKGROUND: Glioblastoma multiforme (GBM) is a devastating brain cancer for which there is no known cure. Its malignancy is due to rapid cell division along with high motility and invasiveness of cells into the brain tissue. Simple 2-dimensional laboratory assays (e.g., a scratch assay) commonly are used to measure the effects of various experimental perturbations, such as treatment with chemical inhibitors. Several mathematical models have been developed to aid the understanding of the motile behavior and proliferation of GBM cells. However, many are mathematically complicated, look at multiple interdependent phenomena, and/or use modeling software not freely available to the research …
The Effect Of K562-Il21-2 Plasma Membrane Particles On The Proliferation Of Natural Killer Cells To Fight Cancer, Michelle Prophete
The Effect Of K562-Il21-2 Plasma Membrane Particles On The Proliferation Of Natural Killer Cells To Fight Cancer, Michelle Prophete
Honors Undergraduate Theses
Immunotherapy has emerged as a current and future paradigm of cancer treatment, which utilizes the body’s immune system to eradicate cancer. Natural Killer (NK) cells as part of the innate immune system have immense potential in their anti-tumor cytotoxic activities and host cell surveillance properties. NK cells comprise approximately five to fifteen percent of peripheral blood lymphocytes and can be proliferated in vitro using recently developed methods with co-cultures with feeder cells (derived from engineered tumor cells) or plasma membrane (PM) particles, produced from the fore mentioned feeder cells, in combination with soluble cytokines. For efficient growth and maintenance of …
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
University Scholar Projects
Somatic mutations may drive tumorigenesis or lead to new, immunogenic epitopes (neoantigens). The immune system is thought to represses neoplastic growths through the recognition of neoantigens presented only by tumor cells. To study mutations as well as the immune response to mutation-generated antigens, we have created a conditional knockin mouse line with a gene encoding, 5’ to 3’, yellow fluorescent protein (YFP), ovalbumin (which is processed to the immunologically recognizable peptide, SIINFEKL), and cyan fluorescent protein (CFP), or, YFP-ovalbumin-CFP. A frame shift mutation has been created at the 5’ end of the ovalbumin gene, hence YFP should always be expressed, …
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
Modeling The Adaptive Immune Response To Mutation-Generated Antigens, Rory J. Geyer
Honors Scholar Theses
Somatic mutations may drive tumorigenesis or lead to new, immunogenic epitopes (neoantigens). The immune system is thought to represses neoplastic growths through the recognition of neoantigens presented only by tumor cells. To study mutations as well as the immune response to mutation-generated antigens, we have created a conditional knockin mouse line with a gene encoding, 5’ to 3’, yellow fluorescent protein (YFP), ovalbumin (which is processed to the immunologically recognizable peptide, SIINFEKL), and cyan fluorescent protein (CFP), or, YFP-ovalbumin-CFP. A frame shift mutation has been created at the 5’ end of the ovalbumin gene, hence YFP should always be expressed, …
Identification And Characterization Of Downstream Effector Protein(S) Regulated By P53 And Prb, Miranda B. Carper
Identification And Characterization Of Downstream Effector Protein(S) Regulated By P53 And Prb, Miranda B. Carper
Theses, Dissertations and Capstones
A commonality among cancer types is the high frequency of mutations that inhibit or alter signaling of the p53 and pRb (Retinoblastoma) tumor suppressors. These genes regulate processes vital for cancer suppression such as apoptosis, senescence, and cell cycle arrest among others. Loss of both p53 and pRb promotes processes that support cancer progression and is associated with decreased patient survival and increased rates of tumor reoccurrence. Although data points to the ability of p53 and pRb to collaborate and to inhibit tumorigenesis, it remains unclear how p53 and pRb cooperate toward this task. Using RNA expression profiling, 179 p53 …
Rbc And Wbc Fatty Acid Composition Following Consumption Of An Omega 3 Supplement: Lessons For Future Clinical Trials, Theodore R. Witte, Alexander J. Salazar, Oscar F. Ballester, W. Elaine Hardman
Rbc And Wbc Fatty Acid Composition Following Consumption Of An Omega 3 Supplement: Lessons For Future Clinical Trials, Theodore R. Witte, Alexander J. Salazar, Oscar F. Ballester, W. Elaine Hardman
Elaine Hardman Ph.D.
Background: Results from increasing numbers of in vitro and in vivo studies have demonstrated that omega 3 fatty acids incorporated in cell culture media or in the diet of the animals can suppress the growth of cancers. When human clinical trials are initiated to determine the ability of omega 3 fatty acids to alter growth or response to chemotherapeutic interventions of cancers, it will be essential to determine the omega 3 intake of individuals in the trial to determine compliance with consumption of the supplement and to correlate with endpoints of efficacy. We wondered if the fatty acid composition of …
Rbc And Wbc Fatty Acid Composition Following Consumption Of An Omega 3 Supplement: Lessons For Future Clinical Trials, Theodore R. Witte, Alexander J. Salazar, Oscar F. Ballester, W. Elaine Hardman
Rbc And Wbc Fatty Acid Composition Following Consumption Of An Omega 3 Supplement: Lessons For Future Clinical Trials, Theodore R. Witte, Alexander J. Salazar, Oscar F. Ballester, W. Elaine Hardman
Biochemistry and Microbiology
Background: Results from increasing numbers of in vitro and in vivo studies have demonstrated that omega 3 fatty acids incorporated in cell culture media or in the diet of the animals can suppress the growth of cancers. When human clinical trials are initiated to determine the ability of omega 3 fatty acids to alter growth or response to chemotherapeutic interventions of cancers, it will be essential to determine the omega 3 intake of individuals in the trial to determine compliance with consumption of the supplement and to correlate with endpoints of efficacy. We wondered if the fatty acid composition of …
Genetic And Environmental Factors Suggest That Dietary Fatty Acid Content, Lipid Metabolism, And Bone Properties Are Key Regulators Of Myeloid Progenitor Cell Frequency, Melinda E. Varney
Genetic And Environmental Factors Suggest That Dietary Fatty Acid Content, Lipid Metabolism, And Bone Properties Are Key Regulators Of Myeloid Progenitor Cell Frequency, Melinda E. Varney
Theses, Dissertations and Capstones
Acute myelogenous leukemia (AML) and its precursors are the result of the dysregulation of hematopoiesis. Hematopoiesis proceeds in a stepwise manner, beginning with hematopoietic stem cells, continuing to develop into various stages of progenitor cells, and finally becoming fully functional blood cells. As this process goes awry, immature, functionless cells of the myeloid lineage proliferate out of control. Discerning how myeloid progenitor frequency is regulated allows for a better understanding of how the process may lose control. Hematopoiesis has been shown to depend on genetic and environmental factors. In this work, I have added to this knowledge base by providing …
Reaction-Diffusion Models Of Cancer Dispersion, Kim Yvette Ward
Reaction-Diffusion Models Of Cancer Dispersion, Kim Yvette Ward
Mathematics & Statistics Theses & Dissertations
The phenomenological modeling of the spatial distribution and temporal evolution of one-dimensional models of cancer dispersion are studied. The models discussed pertain primarily to the transition of a tumor from an initial neoplasm to the dormant avascular state, i.e. just prior to the vascular state, whenever that may occur. Initiating the study is the mathematical analysis of a reaction-diffusion model describing the interaction between cancer cells, normal cells and growth inhibitor. The model leads to several predictions, some of which are supported by experimental data and clinical observations $\lbrack25\rbrack$. We will examine the effects of additional terms on these characteristics. …