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Articles 121 - 133 of 133
Full-Text Articles in Cancer Biology
Visualization And Characterization Of The Immunological Synapse Between Chlorotoxin Chimeric Antigen (Cltx-Car) Redirected T Cells And Targeted Glioblastoma Tumors, Arianna Livi
CMC Senior Theses
Chimeric Antigen Receptor T (CAR-T) cells have demonstrated anti-tumor activity against aggressive and invasive cancers such as glioblastoma (GBM); however, clinical response rates remain low in clinical trial studies. Tumor heterogeneity and tumor microenvironment conditions pose significant challenges for treatment of GBM, thus continuous optimization of CAR-T cell therapies and identification of novel, widely expressed, and highly specific GBM antigens are vital to better patient outcomes. A newly developed CAR-T cell construct incorporating chlorotoxin (CLTX) as the targeting domain exhibited broad GBM-targeting capabilities and elicited potent cytotoxic effects during preclinical studies and is currently being tested in a phase I …
Host Cell Responses Modulate Oncolytic Viral Treatment Of Neuroblastoma Cells, Kritika Kedarinath
Host Cell Responses Modulate Oncolytic Viral Treatment Of Neuroblastoma Cells, Kritika Kedarinath
Electronic Theses and Dissertations, 2020-2023
Neuroblastoma is an aggressive pediatric cancer that is poorly responsive to traditional cancer therapies. Oncolytic viral (OV) vectors such as Zika virus (ZIKV) and Parainfluenza virus type 5 (P/V virus) are promising neuroblastoma therapeutics, but the role of innate immune responses in the effectiveness of OV killing is not well understood. Previous studies showed the neuroblastoma cell line SK-N-AS (expressing low CD24) had low permissivity for ZIKV infection, and this restriction was relieved by ectopic CD24 expression (CD24-high cells). Compared to permissive CD24-high cells, the non-permissive CD24-low cells had elevated basal levels of IRF-1, NF?B and phosphorylated STAT1; these cells …
Conserved Novel Interactions Between Post-Replicative Repair And Mismatch Repair Proteins Have Differential Effects On Dna Repair Pathways, Anna K. Miller
Conserved Novel Interactions Between Post-Replicative Repair And Mismatch Repair Proteins Have Differential Effects On Dna Repair Pathways, Anna K. Miller
Theses and Dissertations--Toxicology and Cancer Biology
DNA mismatch repair (MMR) is the DNA repair mechanism that repairs base-base mispairs and small insertions and deletions remaining after replication. MMR is also required for apoptosis after certain types of exogenous DNA damage that result in damage-associated mispairs. The basic MMR mechanism is well understood; however, proteins associated with MMR continue to be identified. The roles of these interacting proteins in MMR are largely unknown. We have identified the yeast protein Rad5 as a novel interactor of the critical MMR proteins Msh2 and Mlh1. Rad5 is a DNA helicase and E3 ubiquitin ligase involved in post-replicative repair. However, to …
Elucidating The Functional Importance Of Peroxiredoxin Iv In Prostate Cancer And Its Secretion Mechanism, Na Ding
Theses and Dissertations--Toxicology and Cancer Biology
Prostate cancer is the most common and second leading cause of cancer death in men. Prevailing theories state that inflammation may drive prostate carcinogenesis via oxidative stress and the generation of reactive oxygen species (ROS) that induce somatic mutagenesis. Since high proliferating cells or cancer cells exhibit aberrant metabolism to satisfy the needs of energy for rapid cell proliferation, they also generate high levels of ROS which stimulates the expression of cellular antioxidants to overcome the dysregulation of redox homeostasis through the regulation of redox-sensitive transcription factors. Among different antioxidants, peroxiredoxin (Prx) family proteins are the highly conserved and mostly …
Beyond Mitosis, Plk1-Mediated Phosphorylation Re-Wires Cancer Metabolism And Promotes Cancer Progression, Qiongsi Zhang
Beyond Mitosis, Plk1-Mediated Phosphorylation Re-Wires Cancer Metabolism And Promotes Cancer Progression, Qiongsi Zhang
Theses and Dissertations--Toxicology and Cancer Biology
Polo-like kinase 1 (PLK1) is a well- characterized regulator of cell division and is known to be highly expressed in certain types of tumors. It has been demonstrated the multifaceted roles of PLK1 in regulation of transcription, translation, epigenetics, DNA damage and cellular metabolism et al. Despite these findings, the precise mechanisms by which PLK1 regulates these processes beyond mitosis remain unclear. PLK1-mediated phosphorylation and misregulation of its substrates has been linked to tumorigenesis, cancer progression, drug resistance and worse prognosis. In this study, we investigated the non-canonical functions of PLK1 in cancer metabolism and drug resistance. We found that …
Comparison Of Cell Cycle Gene Expression Between Ovarian Cancer Cell Line Skov3 And Non-Cancerous Cell Lines, Akayla Weatherby
Comparison Of Cell Cycle Gene Expression Between Ovarian Cancer Cell Line Skov3 And Non-Cancerous Cell Lines, Akayla Weatherby
Dissertations, Master's Theses and Master's Reports
Roughly 1% of women will be diagnosed with ovarian cancer during their lifetime. There are many different factors that impact how likely someone is to develop ovarian cancer including age, lifestyle, and family history. Ovarian cancer, like all cancers, occurs due to the accumulation of cancer cells that result from errors in the cell cycle or its regulation. Here, we studied how cell cycle gene expression was altered in the epithelial-like ovarian cancer cell line SKOV3, as compared to the pre-cancerous ovarian cell line FT282, and the non-cancerous foreskin fibroblast cell line BJ5Ta. The three cell lines were synchronized into …
Pre-Clinical Trials With Precision-Medicine Based Therapeutics In Basal-Like Patient-Derived Xenografts, David C. Boyd
Pre-Clinical Trials With Precision-Medicine Based Therapeutics In Basal-Like Patient-Derived Xenografts, David C. Boyd
Theses and Dissertations
Breast cancer treatments have improved over time, but the diseases seeing the most benefit from these improvements have the estrogen receptor, progesterone receptor, or are positive for HER2. Basal-like breast cancer tends to not have these biomarkers, which necessitates their treatment to be traditional, untargeted therapeutics which are less effective and tend to have harsh adverse effect profiles – this is an important unmet need. These studies utilize a variety of techniques, including tissue culture, viability assays, high-throughput screening, in vivo drug treatments and imaging, pathway analyses, molecular techniques such as Western blot, antibody arrays, RNA sequencing, sc RNA sequencing, …
The Hepatic Immunological Pattern Shaped By Dominant-Subdominant Cellular Interactions Creates A Collective Function Beyond The Function Of Each Cellular Constituent To Orchestrate Progression Of Hepatocellular Carcinoma, Nicholas J. Koelsch
Theses and Dissertations
Abundance of data on the role of inflammatory immune responses in the progression or inhibition of hepatocellular carcinoma (HCC) has failed to offer a curative immunotherapy for HCC. This is largely because of taking reductionist approaches and missing the collective function of the hepatic immune system by focusing on specific immune cell types. To this end, we propose that focusing on the dominant-subdominant patterns of the immune cells would allow understanding of the mechanism by which a collective immune function emerges. To identify the collective immune function through a systems immunology perspective, we performed high-throughput analysis of snRNAseq data collected …
Protacs – A Novel And Rapidly Developing Field Of Targeted Protein Degradation, Hannah R. Gatley
Protacs – A Novel And Rapidly Developing Field Of Targeted Protein Degradation, Hannah R. Gatley
Theses and Dissertations
There is a continued need for new technology and strategies for tackling cancer and other diseases, and within the current century a novel therapeutic strategy has emerged in the realm of targeted protein degradation called Proteolysis-Targeting Chimeras (PROTACs). This technology specifically targets and degrades disease-causing proteins via the ubiquitin-proteasome system, and has seen an explosion of research and intrigue in both academia and industry over the past two decades. The diversity of PROTAC classes based on the E3 ligase recruiting ligand and the target protein allows for a universal molecular structure that can be customized for a specific target and …
Kpt-330 Synergizes With Everolimus To Reduce Mtorc1-Overactive Basal-Like Triple-Negative Breast Cancer Brain Metastasis Burden, Aaron D. Valentine
Kpt-330 Synergizes With Everolimus To Reduce Mtorc1-Overactive Basal-Like Triple-Negative Breast Cancer Brain Metastasis Burden, Aaron D. Valentine
Theses and Dissertations
Triple-negative breast cancer (TNBC), a highly metastatic breast cancer subtype, accounts for approximately 20% of all breast cancer diagnoses. Basal-like TNBC is notably difficult to treat due to the lack of actionable drug targets such as estrogen and progesterone receptors, as well as HER2. Due to the deficiency in TNBC-targeting drugs that are able to cross the blood-brain barrier (BBB) for breast-to-brain metastasis, there is a need to develop novel BBB-permeable treatments. After preliminary testing, KPT-330 (XPO1 inhibitor) and everolimus (FKBP1A/mTOR inhibitor) were selected as drug candidates for this study. Patient-derived xenograft (PDX) models for in vitro and in vivo …
The Effects Of Cucurbitacin B And Silmitasertib On Metastasis And Itga6 Using The Zebrafish Tumor-Xenograft, Alexandra Griffis
The Effects Of Cucurbitacin B And Silmitasertib On Metastasis And Itga6 Using The Zebrafish Tumor-Xenograft, Alexandra Griffis
College of Graduate Studies: Theses & Dissertations
Ninety percent of cancer deaths are resultant from the metastasis of cancer cells. When cancer cells translocate through blood vessels or the lymphatic system, they may form tumors outside of their primary site. The processes of metastasis can begin quickly; after onset, metastasis is unforgiving, as it does not participate with the body’s physiological systems in an orderly way. In the past, our lab produced results indicating that a cell adhesion molecule, Integrin Alpha-6, may contribute to cancer cells' ability to metastasize. Integrins mediate interactions between the cell and the Extracellular Matrix (ECM), regulating cell attachment and cell migration. With …
The Role Of Nedd9 In Her2-Driven Breast Cancer., Marc Louis Purazo
The Role Of Nedd9 In Her2-Driven Breast Cancer., Marc Louis Purazo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Tumor initiation is often driven by unrestricted proliferation. One such driver of proliferation is Human epidermal growth factor receptor 2 (HER2). HER2 is a receptor tyrosine kinase that is part of the epidermal growth factor receptor family (EFGR) that is commonly overexpressed in breast cancer. HER2 positive (+) breast cancers often respond to anti- HER2 therapy, yet many patients eventually develop resistance. Multiple mechanisms contribute to resistance, including activation of HSP90, PI3K/Akt or Src that rely on adaptor molecules (GRB2, p130cas, NEDD9). Neural precursor cell expressed, developmentally downregulated protein 9 (NEDD9) is an adaptor protein that promotes integrin signaling. We …
Cancer Promoting Neutrophil Extracellular Traps In The Pancreatic Ductal Adenocarcinoma Tumor Microenvironment, Abby Ivey
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pancreatic adenocarcinoma (PDAC) is a very aggressive disease with an overall survival rate at 12%. This poor outcome at diagnosis is in part due to the lack of effective treatment options. The aggressive disease and unique tumor microenvironment generated during disease initiation and progression has contributed to the lack of effective therapeutic options. Chemotherapy options have not improved overall survival substantially, the effectiveness of radiation therapy remains controversial, and immunotherapies provide little to no benefit when added to current standards of care. Thus, there is a critical need for new therapeutics that can either target PDAC alone or be added …