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Articles 1 - 15 of 15
Full-Text Articles in Oncology
Evaluation Of Extracellular Matrix Composition And Rheology As Determinants Of Growth, Invasion, And Response To Photodynamic Therapy In 3d Cell Culture Models Of Pancreatic Ductal Adenocarcinoma, Gwendolyn M. Cramer
Graduate Doctoral Dissertations
Pancreatic ductal adenocarcinoma (PDAC) is a notoriously lethal disease characterized by prominent stromal involvement, which plays complex roles in regulating tumor growth and therapeutic response. The extracellular matrix (ECM)-rich stroma has been implicated as a barrier to drug penetration, although stromal depletion strategies have had mixed clinical success. It remains less clear how biophysical interactions with the ECM regulate invasive progression and susceptibilities to specific therapies. Here, an integrative approach combining 3D cell culture and quantitative imaging techniques is used to evaluate invasive behavior and motility as determinants of response to classical chemotherapy and photodynamic therapy (PDT), in which light …
9-Aminoacridine Inhibits Ribosome Biogenesis And Synergizes With Cytotoxic Drugs To Induce Selective Killing Of P53-Deficient Cells, Leonid Anikin, Dimitri G Pestov
9-Aminoacridine Inhibits Ribosome Biogenesis And Synergizes With Cytotoxic Drugs To Induce Selective Killing Of P53-Deficient Cells, Leonid Anikin, Dimitri G Pestov
Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship
Common cancer treatments target rapidly dividing cells and do not discriminate between cancer and normal host cells. One approach to mitigating negative side‐effects of cancer treatment is to temporarily arrest cell cycle progression and thus protect normal cells during cytotoxic treatments, a concept called cyclotherapy. We recently proposed that transient inhibition of post‐transcriptional steps of ribosome biogenesis (RBG) can be used to selectively arrest p53‐positive host cells and not p53‐null cancer cells. In this study, we investigated whether cytoprotective RBG inhibition can be achieved through small molecule treatment.
Role Of Heat Shock Transcription Factor 1 In Ovarian Cancer Epithelial-Mesenchymal Transition And Drug Sensitivity, Chase David Powell
Role Of Heat Shock Transcription Factor 1 In Ovarian Cancer Epithelial-Mesenchymal Transition And Drug Sensitivity, Chase David Powell
USF Tampa Graduate Theses and Dissertations
The heat shock response (HSR) is a robust cellular reaction to mitigate protein damage from heat and other challenges to the proteome. This protective molecular program in humans is controlled by heat shock transcription factor 1 (HSF1). Activation of HSF1 leads to the induction of an array of cytoprotective genes, many of which code for chaperones. These chaperones, known as heat shock proteins (HSPs), are responsible for maintaining the functional integrity of the proteome. HSPs achieve this by promoting proper folding and assembly of nascent proteins, refolding denatured proteins, and processing for degradation proteins and aggregates which cannot be returned …
Effect Of Extracellular Survivin And Lymphoma Exosomes On Natural Killer Cells, Heather R. Ferguson Bennit
Effect Of Extracellular Survivin And Lymphoma Exosomes On Natural Killer Cells, Heather R. Ferguson Bennit
Loma Linda University Electronic Theses, Dissertations & Projects
Tumors alter their microenvironment to promote survival using methods such as angiogenesis promotion, growth signals, and immune suppression. The immune system becomes unresponsive to transformed neoplastic cells through a variety of methods including T cell suppression, increased myeloid-derived suppressor cells (MDSCs), and reduced natural killer (NK) cell activity. NK cells have inherent killing capabilities and thus are among the first responders in recognizing and destroying abnormal cells. However, many types of cancers inhibit the surveillance and cytotoxic abilities of NK cells by releasing exosomes, vesicles that can modulate the tumor microenvironment (TME) and intercellular communication for the purpose of enhancing …
Chloroformate Derivatization For Tracing The Fate Of Amino Acids In Cells And Tissues By Multiple Stable Isotope Resolved Metabolomics (Msirm), Ye Yang, Teresa W. -M. Fan, Andrew N. Lane, Richard M. Higashi
Chloroformate Derivatization For Tracing The Fate Of Amino Acids In Cells And Tissues By Multiple Stable Isotope Resolved Metabolomics (Msirm), Ye Yang, Teresa W. -M. Fan, Andrew N. Lane, Richard M. Higashi
Center for Environmental and Systems Biochemistry Faculty Publications
Amino acids have crucial roles in central metabolism, both anabolic and catabolic. To elucidate these roles, steady-state concentrations of amino acids alone are insufficient, as each amino acid participates in multiple pathways and functions in a complex network, which can also be compartmentalized. Stable Isotope-Resolved Metabolomics (SIRM) is an approach that uses atom-resolved tracking of metabolites through biochemical transformations in cells, tissues, or whole organisms. Using different elemental stable isotopes to label multiple metabolite precursors makes it possible to resolve simultaneously the utilization of these precursors in a single experiment. Conversely, a single precursor labeled with two (or more) different …
Investigating The Synergistic Effects Of Cisplatin And Two Curcuminoid Compounds On Cancer, Denis Hodzic
Investigating The Synergistic Effects Of Cisplatin And Two Curcuminoid Compounds On Cancer, Denis Hodzic
Mahurin Honors College Capstone Experience/Thesis Projects
Cisplatin is an anti-cancer drug effective against several cancers which can produce the serious side-effect of hearing loss. Curcumin, a natural plant compound, can increase the activity of cisplatin against cancer and counteract cisplatin’s effect against hearing. Because curcumin exhibits poor bioavailability, there is considerable interest in developing synthetic curcumin analogs (curcuminoids) that are more soluble and which retain anti-cancer activity and otoprotective function. This study investigated whether two curcuminoids, EF-24 and CLEFMA, increase the cytotoxic and ototoxic effects of cisplatin against the lung cancer cell line, A549, and the colorectal cancer cell line, Caco2. Cytotoxicity was measured by using …
Exploring Cancer Metabolism Using Stable Isotope-Resolved Metabolomics (Sirm), Ronald C. Bruntz, Andrew N. Lane, Richard M. Higashi, Teresa W. -M. Fan
Exploring Cancer Metabolism Using Stable Isotope-Resolved Metabolomics (Sirm), Ronald C. Bruntz, Andrew N. Lane, Richard M. Higashi, Teresa W. -M. Fan
Center for Environmental and Systems Biochemistry Faculty Publications
Metabolic reprogramming is a hallmark of cancer. The changes in metabolism are adaptive to permit proliferation, survival, and eventually metastasis in a harsh environment. Stable isotope-resolved metabolomics (SIRM) is an approach that uses advanced approaches of NMR and mass spectrometry to analyze the fate of individual atoms from stable isotope-enriched precursors to products to deduce metabolic pathways and networks. The approach can be applied to a wide range of biological systems, including human subjects. This review focuses on the applications of SIRM to cancer metabolism and its use in understanding drug actions.
Functional Roles Of Matrix Metalloproteinases In Bone Metastatic Prostate Cancer, Jeremy S. Frieling
Functional Roles Of Matrix Metalloproteinases In Bone Metastatic Prostate Cancer, Jeremy S. Frieling
USF Tampa Graduate Theses and Dissertations
Skeletal metastasis is a lethal component of many advanced cancers including prostate, the second most common cancer among men. Patients whose prostate cancer is localized and detected early benefit from multiple treatment options ranging from active surveillance to radiation and surgery, resulting in a 5-year survival rate of nearly 100%. Unfortunately, the prognosis and survival for patients with advanced metastatic disease is much worse due to the highly aggressive nature of the disease and a paucity of treatment options. Understanding the mechanisms and interactions that occur between metastatic cancer cells and the bone will enable the future treatment landscape for …
A Review Of The Signal Transduction Pathways Involved In Epithelial Mesenchymal Transition Induced In Breast Cancer Metastasis And Their Cross-Talks, Kasey Cervantes '17
A Review Of The Signal Transduction Pathways Involved In Epithelial Mesenchymal Transition Induced In Breast Cancer Metastasis And Their Cross-Talks, Kasey Cervantes '17
Independent Study
Epithelial-Mesenchymal Transition (EMT) is a biological process utilized by epithelial cells to transform into motile mesenchymal cells, initiating metastasis in cancer. EMT is also utilized during development and wound healing [10]. This process allows for cancerous cells to detach themselves from their primary tumor and invade normal tissue in preferred organ sites, forming secondary tumors called metastases. Metastasis is very important in the progression of cancer in patients as it the process responsible for the mortality of patients through the collection of metastases that effect vital organs like the brain, lung, or immune system. The most common metastases for malignant …
Metastasis-Associated Protein 1 Is An Upstream Regulator Of Dnmt3a And Stimulator Of Insulin-Growth Factor Binding Protein-3 In Breast Cancer., S Deivendran, Hezlin Marzook, T R Santhoshkumar, Rakesh Kumar, M Radhakrishna Pillai
Metastasis-Associated Protein 1 Is An Upstream Regulator Of Dnmt3a And Stimulator Of Insulin-Growth Factor Binding Protein-3 In Breast Cancer., S Deivendran, Hezlin Marzook, T R Santhoshkumar, Rakesh Kumar, M Radhakrishna Pillai
Biochemistry and Molecular Medicine Faculty Publications
Despite a recognized role of DNA methyltransferase 3a (DNMT3a) in human cancer, the nature of its upstream regulator(s) and relationship with the master chromatin remodeling factor MTA1, continues to be poorly understood. Here, we found an inverse relationship between the levels of MTA1 and DNMT3a in human cancer and that high levels of MTA1 in combination of low DNMT3a status correlates well with poor survival of breast cancer patients. We discovered that MTA1 represses DNMT3a expression via HDAC1/YY1 transcription factor complex. Because IGFBP3 is an established target of DNMT3a, we investigated the effect of MTA1 upon IGFBP3 expression, and found …
A Novel Microrna-1207-3p/Fndc1/Fn1/Ar Regulatory Pathway In Prostate Cancer, Dibash K. Das, Olorunseun O. Ogunwobi
A Novel Microrna-1207-3p/Fndc1/Fn1/Ar Regulatory Pathway In Prostate Cancer, Dibash K. Das, Olorunseun O. Ogunwobi
Publications and Research
Prostate cancer (PCa) is the second most common cause of cancer-specific deaths in the U.S. Unfortunately, the underlying molecular mechanisms for its development and progression remain unclear. Studies have established that microRNAs (miRNAs) are dysregulated in PCa. The intron-derived microRNA-1207-3p (miR-1207-3p) is encoded at the non-protein coding gene locus PVT1 on the 8q24 human chromosomal region, an established PCa susceptibility locus. However, miR-1207-3p in PCa had not previously been investigated. Therefore, we explored if miR-1207-3p plays any regulatory role in PCa. We discovered that miR-1207-3p is significantly underexpressed in PCa cell lines in comparison to normal prostate epithelial cells, and …
Ptpro Represses Erbb2-Driven Breast Oncogenesis By Dephosphorylation And Endosomal Internalization Of Erbb2., H Dong, L Ma, J Gan, W Lin, Rakesh Kumar, +9 Additional Authors
Ptpro Represses Erbb2-Driven Breast Oncogenesis By Dephosphorylation And Endosomal Internalization Of Erbb2., H Dong, L Ma, J Gan, W Lin, Rakesh Kumar, +9 Additional Authors
Biochemistry and Molecular Medicine Faculty Publications
The plasma membrane-associated tyrosine phosphatase PTPRO is frequently transcriptionally repressed in cancers and signifies poor prognosis of breast cancer patients. In this study, deletion of Ptpro inMMTV-Erbb2 transgenic mice dramatically shortened the mammary tumor latency and accelerated tumor growth due to loss of Ptpro within the breast cancer cells but not in surrounding tissue as confirmed by hetero-transplantation studies. Both in vitro and in vivo data demonstrated that the phosphatase activity was required for the inactivation of ERBB2 and its downstream signaling. PTPRO regulated the phosphorylation status of ERBB2 at Y1248. Co-immunoprecipitation and proximity ligation assay (Duolink) indicated that …
Genetic Polymorphisms In Caveolin-1 Associate With Breast Cancer Risk In Chinese Han Population, M Wang, T Tian, X Ma, W Zhu, Y Guo, Z Duan, J Fan, S Lin, K Liu, Y Zheng, Q Sheng, Z J. Dai, H Peng
Genetic Polymorphisms In Caveolin-1 Associate With Breast Cancer Risk In Chinese Han Population, M Wang, T Tian, X Ma, W Zhu, Y Guo, Z Duan, J Fan, S Lin, K Liu, Y Zheng, Q Sheng, Z J. Dai, H Peng
Biochemistry and Molecular Medicine Faculty Publications
Caveolin-1(CAV-1) was demonstrated to be a tumor suppressor gene and be implicated in the development of breast cancer (BC). Numerous potentially functional polymorphisms in CAV-1 have been identified, but their effects on BC were not clear. This case-control study aims to evaluate the relationship between CAV-1 polymorphisms and BC risk. 560 BC patients and 583 healthy controls were enrolled in the present study, all from Chinese Han population. We detected 3 single nucleotide polymorphisms (rs3807987, rs1997623, and rs7804372) in CAV-1 using the Sequenom MassARRAY method. The association between CAV-1genotypes and BC risk was assessed in six genetic …
Clinicopathology And Molecular Determinants Underlying Benign Breast And Breast Cancer Lesions, Andreana Holowatyj Holowatyj
Clinicopathology And Molecular Determinants Underlying Benign Breast And Breast Cancer Lesions, Andreana Holowatyj Holowatyj
Wayne State University Dissertations
Despite converging incidence rates for breast cancers by race, disparities in mortality persist where black women suffer from poorer prognosis compared to white counterparts. To understand the clinical, demographic, and molecular characteristics underlying these disparities, we examined differences among patients with breast cancer to understand the role of human epidermal growth factor receptor 2 (HER2) status, age, and race/ethnicity among women diagnosed with hormone receptor-positive breast cancer, and disparities in surgical therapy among female patients with early stage young-onset breast cancer. Benign breast disease, another known risk factor for breast cancer, includes a histological spectrum of lesions, could contribute to …
The Role Of N-Myc Downstream Regulated Gene 1 In Breast Cancer Lipid Metabolism, Christopher James Sevinsky
The Role Of N-Myc Downstream Regulated Gene 1 In Breast Cancer Lipid Metabolism, Christopher James Sevinsky
Legacy Theses & Dissertations (2009 - 2024)
Altered carbohydrate and lipid metabolism are increasingly well characterized hallmarks of aggressive breast cancers. While aerobic glycolysis, or “the Warburg effect”, is a well-established metabolic adaptation exploited by tumor cells, the understanding of unique aspects of cancer lipid metabolism lags behind. This is especially true regarding the coordination of complex lipid synthesis and trafficking pathways, which remains poorly understood. N-Myc Downstream Regulated Gene1 (NDRG1) is overexpressed in many solid tumors, but its function is unclear. The importance of NDRG1 is best exemplified by the effect of null mutations on human physiology: inactivating mutations give rise to the severe autosomal recessive …