Open Access. Powered by Scholars. Published by Universities.®

Cell and Developmental Biology Commons™

Open Access. Powered by Scholars. Published by Universities.®

Cancer

Discipline
Institution
Publication Year
Publication
Publication Type
File Type

Articles 91 - 120 of 270

Full-Text Articles in Cell and Developmental Biology

Inhibition Of De Novo And The Prion-Like Spread Of Amyloidogenesis Using In Vitro And In Vivo Disease Models, Johnson Anazoba Joseph Jan 2022

Inhibition Of De Novo And The Prion-Like Spread Of Amyloidogenesis Using In Vitro And In Vivo Disease Models, Johnson Anazoba Joseph

Electronic Theses and Dissertations

The aberrant fibrous, extracellular, and intracellular proteinaceous deposits in cells, organs and tissues are referred to as amyloids. These deposits are dominated by β-sheet structures that have been implicated in several neurodegenerative diseases and cancer. In this work, the types of amyloidosis studied include Parkinson’s disease (PD) using UA196 and NL5901 strains of Caenorhabditis elegans (C. elegans), Alzheimer’s disease (AD) using GMC101 strain of C. elegans, and cancer-associated mutant p53 aggregation in MIA PaCa-2 mutant cells. Several molecules including SK-129, NS132, NS163, bexarotene, a polyphenol (-)-epi-gallocatechine gallate (EGCG), ADH40, RD148, and RD242 were screened in vitro and in …


The Relationship Between Inflammatory Diet Score And Cancer Outcomes: Systematic Review And Meta-Analysis, Eric Han Jan 2022

The Relationship Between Inflammatory Diet Score And Cancer Outcomes: Systematic Review And Meta-Analysis, Eric Han

Honors Undergraduate Theses

Cancer remains one of the most prevalent diseases in the United States and a leading cause of death. Large prospective studies have found significant correlations between dietary intake and cancer. Chronic inflammation promotes pro-cancer inflammatory environments promoting the formation and growth of tumors while preventing effective anti-tumor responses. Nutrition can impact inflammation, with the intake of certain food items increasing biomarkers for systemic inflammation thus, the objective of this research was to explore the relationship between inflammatory diet score measured by the Dietary Inflammatory index and all-cause mortality, cancer-specific mortality, and cancer recurrence among cancer survivors. Web of Science, Medline, …


Intracellular Trafficking And Distribution Of Cd And Inp Quantum Dots In Hela And Ml-1 Thyroid Cancer Cells, Min Zhang Jan 2022

Intracellular Trafficking And Distribution Of Cd And Inp Quantum Dots In Hela And Ml-1 Thyroid Cancer Cells, Min Zhang

Graduate Theses/Dissertations

The study of the interaction of engineered nanoparticles, including quantum dots (QDs), with cellular constituents and the kinetics of their localization and transport, has provided new insights into their biological consequences in cancers and for the development of effective cancer therapies. The present study aims to elucidate the toxicity and intracellular transport kinetics of CdSe/ZnS and InP/ZnS QDs in late-stage ML-1 thyroid cancer using well-tested HeLa cells as a control. The XTT viability assay showed that ML-1 cells, and non-cancerous mouse fibroblast cells, exhibit no viability defect in response to these QDs, whereas HeLa cell viability decreases. These results suggest …


Plasmonic-Based Biosensor For The Early Diagnosis Of Prostate Cancer, Thakshila Liyanage, Bayan Alharbi, Linh Quan, Aurora Esquela-Kerscher, Gymama Slaughter Jan 2022

Plasmonic-Based Biosensor For The Early Diagnosis Of Prostate Cancer, Thakshila Liyanage, Bayan Alharbi, Linh Quan, Aurora Esquela-Kerscher, Gymama Slaughter

Bioelectrics Publications

A tapered optical fiber (TOF) plasmonic biosensor was fabricated and used for the sensitive detection of a panel of microRNAs (miRNAs) in human serum obtained from noncancer and prostate cancer (PCa) patients. Oncogenic and tumor suppressor miRNAs let7a, let-7c, miR-200b, miR-141, and miR-21 were tested as predictive cancer biomarkers since multianalyte detection minimizes false-positive and false-negative rates and establishes a strong foundation for early PCa diagnosis. The biosensing platform integrates metallic gold triangular nanoprisms (AuTNPs) laminated on the TOF to excite surface plasmon waves in the supporting metallic layer and enhance the evanescent mode of the fiber surface. …


Functional Characterization Of Cancer-Associated Dna Polymerase Ε Variants, Stephanie R. Barbari Dec 2021

Functional Characterization Of Cancer-Associated Dna Polymerase Ε Variants, Stephanie R. Barbari

Theses & Dissertations

Replicative DNA polymerases ε (Polε) and δ (Polδ) achieve high fidelity DNA synthesis through a precise balance of polymerization and exonucleolytic proofreading. Errors that escape proofreading are corrected by DNA mismatch repair (MMR). Ultramutated human cancers with proficient MMR carry alterations in the exonuclease domain of Polε, which were initially predicted to abolish proofreading. However, functional studies in yeast of the most recurrent Polε-P286R variant suggested defects beyond a loss of exonuclease activity. Indeed, biochemical analysis of the yeast Polε-P286R analog revealed increased polymerization capacity in addition to decreased proofreading, which enables efficient mismatch extension and bypass of replication-blocking non-B …


Clinical Diagnosis Support With Convolutional Neural Network By Transfer Learning, Spencer Fogleman, Jeremy Otsap, Sangrae Cho Dec 2021

Clinical Diagnosis Support With Convolutional Neural Network By Transfer Learning, Spencer Fogleman, Jeremy Otsap, Sangrae Cho

SMU Data Science Review

Breast cancer is prevalent among women in the United States. Breast cancer screening is standard but requires a radiologist to review screening images to make a diagnosis. Diagnosis through the traditional screening method of mammography currently has an accuracy of about 78% for women of all ages and demographics. A more recent and precise technique called Digital Breast Tomosynthesis (DBT) has shown to be more promising but is less well studied. A machine learning model trained on DBT images has the potential to increase the success of identifying breast cancer and reduce the time it takes to diagnose a patient, …


Differentiating The Mechanistic Role And Chemotherapeutic Potential Of Src And Podoplanin In Oncogenic Transformation, Edward P. Retzbach Dec 2021

Differentiating The Mechanistic Role And Chemotherapeutic Potential Of Src And Podoplanin In Oncogenic Transformation, Edward P. Retzbach

Graduate School of Biomedical Sciences Theses and Dissertations

There were an estimated 20 million new cancer cases worldwide in 2020, resulting in nearly 1000 deaths per hour [1]. Oral cancer exemplifies the difficulties of treating cancer patients. The first line for oral cancer treatment is surgery and radiation that can lead to patient disfigurement and decreased quality of life in cancer survivors [2-4]. Though there have been many developments in chemotherapy in the last 30 years, the 50% mortality rate associated with oral cancer has not changed [4, 5]. Longitudinal studies that track survival rates in oral cancer patients demonstrate a 3-fold reduction in patient deaths when patients …


Role Of Sex Differences On Cancer Cachexia Progression And Fibrosis During Cancer Cachexia Development, Wesley Haynie Dec 2021

Role Of Sex Differences On Cancer Cachexia Progression And Fibrosis During Cancer Cachexia Development, Wesley Haynie

Graduate Theses and Dissertations

Cancer cachexia is a multifactorial wasting syndrome characterized by losses in bodymass >5% and occurs in approximately 80% of all cancer patients. Chronic inflammation and fibrosis play roles in cancer cachexia and a greater understanding of these contributing pathways to this pathology will pave the way for potential therapeutic avenues. While inflammation and fibrosis have been researched in various models of cancer cachexia, little to no studies have been performed in both sexes as most previous studies focus on males. PURPOSE The purpose of these studies is to investigate the role of fibrosis on cancer cachexia development as well as …


Design And Application Of Hybrid Cyclic-Linear Peptide-Doxorubicin Conjugates As A Strategy To Overcome Doxorubicin Resistance And Toxicity, Saghar Mozaffari, David Salehi, Parvin Mahdipoor, Richard Beuttler, Rakesh Tiwari, Hamidreza Montazeri Aliabadi, Keykavous Parang Sep 2021

Design And Application Of Hybrid Cyclic-Linear Peptide-Doxorubicin Conjugates As A Strategy To Overcome Doxorubicin Resistance And Toxicity, Saghar Mozaffari, David Salehi, Parvin Mahdipoor, Richard Beuttler, Rakesh Tiwari, Hamidreza Montazeri Aliabadi, Keykavous Parang

Pharmacy Faculty Articles and Research

Doxorubicin (Dox) is used for breast cancer, leukemia, and lymphoma treatment as an effective chemotherapeutic agent. However, Dox use is restricted due to inherent and acquired resistance and an 8-fold increase in the risk of potentially fatal cardiotoxicity. Hybrid cyclic-linear peptide [R5K]W7A and linear peptide R5KW7A were conjugated with Dox through a glutarate linker to afford [R5K]W7A-Dox and R5KW7A-Dox conjugates to generate Dox derivatives. Alternatively, [R5K]W7C was conjugated with Dox via a disulfide linker to generate [R5K]W7C–S–S-Dox conjugate, where S–S is a disulfide bond. Comparative antiproliferative assays between conjugates [R5K]W7A-Dox, [R5K]W7C–S–S-Dox, linear R5KW7A-Dox, the corresponding physical mixtures of the peptides, …


Targeting Plasma Membrane Phosphatidylserine Content To Inhibit Oncogenic Kras Function, Walaa E. Kattan Aug 2021

Targeting Plasma Membrane Phosphatidylserine Content To Inhibit Oncogenic Kras Function, Walaa E. Kattan

Dissertations and Theses (Open Access)

The small GTPase KRAS, which is frequently mutated in human cancers, must be localized to the plasma membrane (PM) for biological activity. We recently showed that the KRAS C-terminal membrane anchor exhibits exquisite lipid-binding specificity for select species of phosphatidylserine (PtdSer). We therefore investigated whether reducing PM PtdSer content is sufficient to abrogate KRAS oncogenesis. Oxysterol-related binding proteins ORP5 and ORP8 exchange PtdSer synthesized in the ER for phosphatidylinositol-4-phosphate (PI4P) synthesized in the PM. We show that depletion of ORP5 or ORP8 reduced PM PtdSer levels, resulting in extensive mislocalization of KRAS from the PM. Concordantly, ORP5 or ORP8 depletion …


An Assessment Of Inp/Zns As Potential Anti-Cancer Therapy: Quantum Dot Treatment Induces Stress On Hela Cells, Victoria Grace Davenport Aug 2021

An Assessment Of Inp/Zns As Potential Anti-Cancer Therapy: Quantum Dot Treatment Induces Stress On Hela Cells, Victoria Grace Davenport

Graduate Theses/Dissertations

Indium Phosphide/Zinc Sulfide (InP/ZnS) quantum dots (QDs) are an emerging option in QD technologies for uses of fluorescent imaging as well as targeted drug and anti-cancer therapies based on their customizable properties. In this study we explored effects of InP/ZnS when treated with HeLa cervical cancer cells. We employed XTT viability assays, reactive oxygen species (ROS) analysis, and apoptosis analysis to better understand cytotoxicity extents at different concentrations of InP/ZnS. In addition, we compared the transcriptome profile from the QDtreated HeLa cells with that of untreated HeLa cells to identify changes to the transcriptome in response to the QD. Intracellular …


Understanding The Pathogenesis Of Renal Medullary Carcinoma, Melinda Soeung Aug 2021

Understanding The Pathogenesis Of Renal Medullary Carcinoma, Melinda Soeung

Dissertations and Theses (Open Access)

Renal medullary carcinoma (RMC) is a lethal cancer that predominantly affects young individuals with sickle cell trait (SCT). It is not currently understood why RMC only affects certain individuals with SCT. We found that patients with RMC more frequently participated in high-intensity exercise than matched controls. Using mouse models of SCT, we demonstrated the significant increase of renal hypoxia in the right kidney following high- but not moderate-intensity exercise. We also demonstrated in cell culture studies that SMARCB1 is ubiquitinated for proteasome-mediated degradation in hypoxia, and the re-expression of SMARCB1 leads to compromised proliferation in renal cells specifically in the …


Human Oncoprotein 5mp Suppresses General And Repeat-Associated Non-Aug Translation Via Eif3 By A Common Mechanism, Chingakham Ranjit Singh, M. Rebecca Glineburg, Chelsea Moore, Naoki Tani, Rahul Jaiswal, Ye Zou, Eric Aube, Sarah Gillaspie, Mackenzie Thornton, Ariana Cecil, Madelyn Hilgers, Azuma Takasu, Izumi Asano, Masayo Asano, Carlos R. Escalante, Akira Nakamura, Peter K. Todd, Katsura Asano Jul 2021

Human Oncoprotein 5mp Suppresses General And Repeat-Associated Non-Aug Translation Via Eif3 By A Common Mechanism, Chingakham Ranjit Singh, M. Rebecca Glineburg, Chelsea Moore, Naoki Tani, Rahul Jaiswal, Ye Zou, Eric Aube, Sarah Gillaspie, Mackenzie Thornton, Ariana Cecil, Madelyn Hilgers, Azuma Takasu, Izumi Asano, Masayo Asano, Carlos R. Escalante, Akira Nakamura, Peter K. Todd, Katsura Asano

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

eIF5-mimic protein (5MP) is a translational regulatory protein that binds the small ribosomal subunit and modulates its activity. 5MP is proposed to reprogram non-AUG translation rates for oncogenes in cancer, but its role in controlling non-AUG initiated synthesis of deleterious repeat-peptide products, such as FMRpolyG observed in fragile-X-associated tremor ataxia syndrome (FXTAS), is unknown. Here, we show that 5MP can suppress both general and repeat-associated non-AUG (RAN) translation by a common mechanism in a manner dependent on its interaction with eIF3. Essentially, 5MP displaces eIF5 through the eIF3c subunit within the preinitiation complex (PIC), thereby increasing the accuracy of initiation. …


A Time-Course Characterization Of Muscle Function And Mitochondrial Markers During Colorectal Cancer-Induced Cachexia In Tumor-Bearing Male Mice, Ana Cabrera Ayuso Jul 2021

A Time-Course Characterization Of Muscle Function And Mitochondrial Markers During Colorectal Cancer-Induced Cachexia In Tumor-Bearing Male Mice, Ana Cabrera Ayuso

Graduate Theses and Dissertations

Cachexia is a multisystemic and multifactorial syndrome prevalent in cancer patients. It is clinically defined by involuntary loss of >5% weight in a six-month window, despite nutritional interventions. A negative energy balance characterizes cancer cachexia (CC), it is associated with weakness and fatigue in skeletal muscle. Impaired muscle function is associated with lower quality of life in cancer patients. Defects in mitochondrial function are strongly associated with muscle wasting. This study explored muscular contractile function and mitochondrial quality control (MQC) markers in soleus, gastrocnemius, and tibialis anterior (TA) muscles of C26-induced male tumor-bearing mice during a 25-day time course. It …


A Forward Genetic Screen To Identify Human Genes Of Interest And Their Roles In Ovarian Cancer, Susan A. Ihejirika May 2021

A Forward Genetic Screen To Identify Human Genes Of Interest And Their Roles In Ovarian Cancer, Susan A. Ihejirika

Honors College Theses

Drosophila melanogaster, fruit flies, are very important for modeling and studying human diseases. This study identifies human genes of interest and their contributions to epithelial ovarian carcinogenesis and progression as well as the roles orthologs of these genes play in Drosophila melanogaster. This is important because ovarian cancer is the most common cause of death among the gynecological cancers. This identification of genes was carried out using a forward genetic screen employing the widely used GMR-Gal4 driver/UAS-transgene system. The GMR-Gal4 driver is commonly utilized to express transgenes in the developing eye of the fruit fly. Transgenes that are expressed using …


Detection And Quantification Of Γ-H2ax Using A Dissociation Enhanced Lanthanide Fluorescence Immunoassay, Felicite K. Noubissi, Amber A. Mcbride, Hannah G. Leppert, Larry J. Millet, Xiaofei Wang, Sandra M. Davern Apr 2021

Detection And Quantification Of Γ-H2ax Using A Dissociation Enhanced Lanthanide Fluorescence Immunoassay, Felicite K. Noubissi, Amber A. Mcbride, Hannah G. Leppert, Larry J. Millet, Xiaofei Wang, Sandra M. Davern

Biology Faculty Research

Phosphorylation of the histone protein H2AX to form γ-H2AX foci directly represents DNA double-strand break formation. Traditional γ-H2AX detection involves counting individual foci within individual nuclei. The novelty of this work is the application of a time-resolved fluorescence assay using dissociation-enhanced lanthanide fluorescence immunoassay for quantitative measurements of γ-H2AX. For comparison, standard fluorescence detection was employed and analyzed either by bulk fluorescent measurements or by direct foci counting using BioTek Spot Count algorithm and Gen 5 software. Etoposide induced DNA damage in A549 carcinoma cells was compared across all test platforms. Time resolved fluorescence detection of europium as a chelated …


Effect Of Cyclooxygenase-2 Glycosylation On Downstream Expression Of E-Cadherin And Β-Catenin In Mcf-7 Breast Cancer Cells, Genna Roan, Grace Alexander, Klarisse Cruz, Janelle Nguyen, Mary B. Sevigny Apr 2021

Effect Of Cyclooxygenase-2 Glycosylation On Downstream Expression Of E-Cadherin And Β-Catenin In Mcf-7 Breast Cancer Cells, Genna Roan, Grace Alexander, Klarisse Cruz, Janelle Nguyen, Mary B. Sevigny

Natural Sciences and Mathematics | Faculty Research Posters

Cyclooxygenase-2 (COX-2) is an enzyme that helps catalyze the formation of prostaglandins, which promote inflammation, pain, and fever and maintain other normal physiological functions throughout the body. However, the overexpression of COX-2 has been found to play a role in various diseases including breast cancer. COX-2 exists as two major glycoforms— 72 kDa and 74 kDa— due to the glycosylation site Asn580 which is glycosylated 50% of the time. Past studies from our lab have shown that this glycosylation regulates COX-2 protein turnover in the cell3. The proteins E-cadherin— a tumor suppressor— and β-catenin— a tumor driver— can be regulated …


Examining The Mechanistic Roles Of Integrin Alpha-6 In Cancer Metastasis., Chase T. Clark Mar 2021

Examining The Mechanistic Roles Of Integrin Alpha-6 In Cancer Metastasis., Chase T. Clark

Honors College Theses

Metastasis- the spread of cancer cells from the primary tumor to the surrounding tissues- is responsible for 90% of cancer deaths. Integrin alpha-6 (ITGA6) is a specific transmembrane cell surface protein that functions in cell surface adhesion and signaling. ITGA6 is upregulated in many types of cancers and promotes the migration and invasion of cancer cells to surrounding tissues. It is my objective to determine the mechanism through which ITGA6 facilitates the migration of cancer cells through the extracellular matrix (ECM). These experiments helped to establish the role of ITGA6 in tumor development and provide focus for possible chemotherapeutic treatment. …


Anti-Cancer Effects By Interleukin 24, Xuelin Zhong Feb 2021

Anti-Cancer Effects By Interleukin 24, Xuelin Zhong

Dissertations, Theses, and Capstone Projects

Cancers develop as some cells acquire the ability, either by exogenous stimulation or by spontaneous mutation, to keep growing despite normal restraints. Up-regulating translation of oncogenes involved in cell proliferation and tumor development and down-regulating translation of tumor-suppressors that normally suppress tumor development are two most common mechanisms by which cancers develop. Therefore, it is crucial to study how these proteins get either up-regulated or down-regulated at translational level.

The eukaryotic translation initiation factor, which is composed of subunits such as eIF4A, eIF4G and eIF4E, is one of the key factors that contribute to efficient translation initiation. Interleukin 24 (IL-24), …


[(Wr)8Wkβa]-Doxorubicin Conjugate: A Delivery System To Overcome Multi-Drug Resistance Against Doxorubicin, Khalid Zoghebi, Hamidreza Montazeri Aliabadi, Rakesh Kumar Tiwari, Keykavous Parang Jan 2021

[(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 …


Association Between Plasma Genistein And Health-Related Quality Of Life In Breast Cancer Survivors, Tran Pham Jan 2021

Association Between Plasma Genistein And Health-Related Quality Of Life In Breast Cancer Survivors, Tran Pham

Honors Undergraduate Theses

According to the American Cancer Society, breast cancer is the most commonly diagnosed cancer and is the second leading cause of cancer death in American women. Breast cancer screenings and improvement in treatments have resulted in the rising number of survivors in the recent decade. This urged the need for post-diagnosis lifestyle changes to improve breast cancer patients' quality of life. Many studies found soy food, the primary dietary source of phytoestrogens, has a protective effect against breast cancer recurrence and mortality. Dietary phytoestrogens can be classified into two groups: isoflavones and lignans. Daidzein and genistein were identified as the …


Photodynamic Therapy Of Inorganic Complexes For The Treatment Of Cancer, Chloe B. Smith, Lindsay C. Days, Duaa R. Alajroush, Khadija Faye, Yara Khodour, Stephen J. Beebe, Alvin Holder Jan 2021

Photodynamic Therapy Of Inorganic Complexes For The Treatment Of Cancer, Chloe B. Smith, Lindsay C. Days, Duaa R. Alajroush, Khadija Faye, Yara Khodour, Stephen J. Beebe, Alvin Holder

Chemistry & Biochemistry Faculty Publications

Photodynamic therapy (PDT) is a medicinal tool that uses a photosensitiser and a light source to treat several conditions, including cancer. PDT uses reactive oxygen species (ROS) such as cytotoxic singlet oxygen 1O2 to induce cell death in cancer cells. Chemotherapy has historically utilized the cytotoxic effects of many metals, especially transition-metal complexes. However, chemotherapy is a systemic treatment so all cells in a patient's body are exposed to the same cytotoxic effects. Transition metal complexes have also shown high cytotoxicity as PDT agents. PDT is a potential localized method for treating several cancer types by using inorganic …


Cop9 Signalosome Component Csn-5 Promotes Accumulation And Function Of Stem Cell Regulators Fbf-1 And Fbf-2, Emily Osterli Jan 2021

Cop9 Signalosome Component Csn-5 Promotes Accumulation And Function Of Stem Cell Regulators Fbf-1 And Fbf-2, Emily Osterli

Graduate Student Theses, Dissertations, & Professional Papers

RNA-binding proteins FBF-1 and FBF-2 (FBFs) are required for stem cell maintenance in C. elegans, although the mechanisms by which FBFs protein levels are regulated remain unknown. Using a yeast two-hybrid screen, we identified an interaction between both FBFs and CSN-5, a component of the COP9 (constitutive photomorphogenesis 9) signalosome. This highly conserved COP9 complex can affect protein stability through a range of mechanisms including deneddylation, deubiquitination, and phosphorylation (Wolf et al., 2003). Mapping protein-protein interactions between FBFs and CSN-5 suggested that the MPN (Mpr1/Pad1 N-terminal) metalloprotease domain of CSN-5 interacts with the RNA-binding domain of FBFs at physiologically …


A New Mathematical Theory For The Dynamics Of Large Tumor Populations, A Potential Mechanism For Cancer Dormancy & Recurrence And Experimental Observation Of Melanoma Progression In Zebrafish, Adeyinka A. Lesi Jan 2021

A New Mathematical Theory For The Dynamics Of Large Tumor Populations, A Potential Mechanism For Cancer Dormancy & Recurrence And Experimental Observation Of Melanoma Progression In Zebrafish, Adeyinka A. Lesi

Dissertations and Theses

Cancer, a family of over a hundred disease varieties, results in 600,000 deaths in the U.S. alone. Yet, improvements in imaging technology to detect disease earlier, pharmaceutical developments to shrink or eliminate tumors, and modeling of biological interactions to guide treatment have prevented millions of deaths. Cancer patients with initially similar disease can experience vastly different outcomes, including sustained recovery, refractory disease or, remarkably, recurrence years after apparently successful treatment. The current understanding of such recurrences is that they depend on the random occurrence of critical mutations. Clearly, these biological changes appear to be sufficient for recurrence, but are they …


The Resistive Barrier Discharge: A Brief Review Of The Device And Its Biomedical Applications, Mounir Laroussi Jan 2021

The Resistive Barrier Discharge: A Brief Review Of The Device And Its Biomedical Applications, Mounir Laroussi

Electrical & Computer Engineering Faculty Publications

This paper reviews the principles behind the design and operation of the resistive barrier discharge, a low temperature plasma source that operates at atmospheric pressure. One of the advantages of this plasma source is that it can be operated using either DC or AC high voltages. Plasma generated by the resistive barrier discharge has been used to efficiently inactivate pathogenic microorganisms and to destroy cancer cells. These biomedical applications of low temperature plasma are of great interest because in recent times bacteria developed increased resistance to antibiotics and because present cancer therapies often are accompanied by serious side effects. Low …


Investigating The Antitumor Effects Of A Dsrna-Nanoparticle Complex In An In Vitro Ovarian Cancer Model, Aaron Lewis Jan 2021

Investigating The Antitumor Effects Of A Dsrna-Nanoparticle Complex In An In Vitro Ovarian Cancer Model, Aaron Lewis

Theses and Dissertations (Comprehensive)

An estimated 1 in 70 women will be diagnosed with ovarian cancer in their lifetime. Despite advanced detection and treatment methods, it remains a silent killer with an expected survival rate of 50%. A developing method in cancer treatment is the use of compounds that stimulate the immune system to aid in the body's fight against the disease. This project focused on the use of the potent immune stimulant double-stranded RNA (dsRNA), commercially available as polyinosinic:polycytidylic acid, poly(I:C), to induce cytotoxicity in two ovarian cancer cell lines; SKOV-3 and OVCAR-3. Some challenges exist with the delivery of dsRNA due to …


Immunohistochemical Localization Of Prolactin Receptor (Prlr) To Hodgkin's And Reed-Sternberg Cells Of Hodgkin's Lymphoma, Rajendra Gharbaran, Onyekwere Onwumere, Naomi Codrington, Latchman Somenarian, Stephen Redenti Nov 2020

Immunohistochemical Localization Of Prolactin Receptor (Prlr) To Hodgkin's And Reed-Sternberg Cells Of Hodgkin's Lymphoma, Rajendra Gharbaran, Onyekwere Onwumere, Naomi Codrington, Latchman Somenarian, Stephen Redenti

Publications and Research

Prolactin receptor (PRLR), a type-1 cytokine receptor, is overexpressed in a number of cancer types. It has attracted much attention for putative pro-oncogenic roles, which however, remains controversial in some malignancies. In this study, we reported the localization of PRLR to the Hodgkin's and Reed-Sternberg (HRS) cells of Hodgkin's lymphoma (HL), a neoplasm of predominantly B cell origin. Immunohistochemistry performed on 5-μm thick FFPE sections revealed expression of PRLR in HRS cells. Cellular immunofluorescence experiments showed that the HL-derived cell lines, Hs445, KMH2 and L428 overexpressed PRLR. The PRLR immunofluorescent signal was depleted after treating the cell lines with 10 …


Modulation Of Ros In Nanosecond-Pulsed Plasma-Activated Media For Dosage-Dependent Cancer Cell Inactivation In Vitro, Chunqi Jiang, Esin Bengisu Sozer, Shutong Song, Nicola Lai, P. Thomas Vernier, Sigi Guo Nov 2020

Modulation Of Ros In Nanosecond-Pulsed Plasma-Activated Media For Dosage-Dependent Cancer Cell Inactivation In Vitro, Chunqi Jiang, Esin Bengisu Sozer, Shutong Song, Nicola Lai, P. Thomas Vernier, Sigi Guo

Bioelectrics Publications

Dosage control of reactive oxygen and nitrogen species (RONS) is critical to low-temperature plasma applications in cancer therapy. Production of RONS by atmospheric pressure, nonequilibrium plasmas in contact with liquid may be modulated via plasma conditions including plasma treatment time and pulse voltage and repetition frequency. In this study, a terephthalic acid-based probe was used to measure hydroxyl radicals [OHaq] in water exposed to plasma and to demonstrate that the OHag concentration increases linearly with treatment time. Fluorometric measurements of hydrogen peroxide concentration in plasma-activated water show a linear relationship between the H2O2 production …


Luteolin Induces Cytotoxicity In Mix Cellularity Classical Hodgkin's Lymphoma Via Caspase Activated-Cell Death, Rajendra Gharbaran, Enyuan Shang, Onyekwere Onwumere, Naomi Codrington, Evangelina Dankwa Sarpong, Stephen M. Redenti Sep 2020

Luteolin Induces Cytotoxicity In Mix Cellularity Classical Hodgkin's Lymphoma Via Caspase Activated-Cell Death, Rajendra Gharbaran, Enyuan Shang, Onyekwere Onwumere, Naomi Codrington, Evangelina Dankwa Sarpong, Stephen M. Redenti

Publications and Research

Background/aim: We investigated the effects of luteolin (LUT) on classical Hodgkin's lymphoma (cHL), since such studies in malignant lymphomas are lacking.

Materials and methods: Effect of LUT on cell growth was assessed with water-soluble tetrazolium 1 (WST-1) cell proliferation assay and automated hemocytometry on trypan blue-exclusion assay. Cell death was investigated with acridine orange/ethidium bromide live-dead assay, propidium iodide (PI) flow cytometry, and Annexin-V-PI microscopy. Caspase activation was studied using CellEvent Caspase-3/7 Green detection reagent. High resolution immunofluorescence microscopy was used to detect cleaved-PARP-1.

Results: LUT induced a dose-dependent decrease in the growth of KMH2 and L428 cells, cellular models …


From Development To Therapy: A Panoramic Approach To Further Our Understanding Of Cancer, Brittany Poelaert Aug 2020

From Development To Therapy: A Panoramic Approach To Further Our Understanding Of Cancer, Brittany Poelaert

Theses & Dissertations

Solid tumors, such as pancreatic cancer, often result in dismally low survival outcomes for patients due to insufficient understanding of disease development and progression. Pancreatic cancer is the fourth leading cause of cancer-related deaths in the United States and although oncogenic drivers (such as KRAS mutation or loss of tumor suppressor p53) and stages of disease development have been studied, further understanding of pancreatic cancer development is greatly needed. Studies from our laboratory have identified novel and varied functions of amyloid precursor-like protein 2 (APLP2) in the development and progression of pancreatic cancer. These functions include promoting cancer cell migration, …