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

Medical Cell Biology Commons™

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

2020

Discipline
Institution
Keyword
Publication
Publication Type

Articles 31 - 60 of 69

Full-Text Articles in Medical Cell Biology

Targeting Pd-L1 In Non-Small Cell Lung Cancer Using Car T Cells, Ming Liu, Xu Wang, Wei Li, Xinfang Yu, Pedro Flores-Villanueva, Zijun Y Xu-Monette, Ling Li, Mingzhi Zhang, Ken H Young, Xiaodong Ma, Yong Li Aug 2020

Targeting Pd-L1 In Non-Small Cell Lung Cancer Using Car T Cells, Ming Liu, Xu Wang, Wei Li, Xinfang Yu, Pedro Flores-Villanueva, Zijun Y Xu-Monette, Ling Li, Mingzhi Zhang, Ken H Young, Xiaodong Ma, Yong Li

Faculty, Staff and Students Publications

Antibodies against programmed cell death protein 1 (PD-1) and its ligand (PD-L1) have dramatically changed the landscape of therapies for non-small cell lung carcinoma (NSCLC); however, the majority of patients do not respond to these agents. In addition, hyperprogressive disease (HPD) develops in a larger portion of NSCLC patients treated with PD-1/PD-L1 inhibitors than in patients treated with standard chemotherapy. The use of chimeric antigen receptor (CAR) T cells has been successful to treat blood cancers but not for solid tumors like NSCLC. In this work, we constructed CAR T cells that target PD-L1 and evaluated their efficacy in NSCLC …


Effect Of S100b Deletion On Membrane Properties And Localization Of Ncald And Hpca, Natasha Hesketh Aug 2020

Effect Of S100b Deletion On Membrane Properties And Localization Of Ncald And Hpca, Natasha Hesketh

Graduate School of Biomedical Sciences Theses and Dissertations

Calcium signaling is particularly important for neuronal function. Neurons utilize a wide range of calcium-binding proteins. Dysregulation of such proteins is linked to neurodegeneration. Neurocalcin delta (NCALD), hippocalcin (HPCA), and S100B are calcium sensors that are expressed in the hippocampus, a brain region essential to memory and severely damaged in Alzheimer’s disease (AD). Despite the potential importance of these proteins, we do not fully understand the physiological significance of their relationship. Because NCALD and HPCA are known to interact with S100B, we hypothesized that the loss of S100B affects NCALD and HPCA localization, and therefore electrical properties, of hippocampal neurons. …


Stem Crisis Teaching: Curriculum Design With E-Learning Tools, Sonya E. Van Nuland, Elissa Hall, Natalie R. Langley Jul 2020

Stem Crisis Teaching: Curriculum Design With E-Learning Tools, Sonya E. Van Nuland, Elissa Hall, Natalie R. Langley

School of Medicine Faculty Publications

The COVID-19 pandemic and subsequent social distancing protocols have accelerated the shift to online teaching across the globe. In Science, Technology, Engineering, and Mathematics (STEM) programs this means a shift from face-to-face laboratory instruction to self-directed learning with e-learning tools. Unfortunately, selecting and integrating an e-learning tool into a curriculum can be daunting. This article highlights key questions and practical suggestions instructors should consider in choosing the most effective option for their course and learners.


Thrombospondin-1 Plays An Essential Role In Yes-Associated Protein Nuclear Translocation During The Early Phase Of Trypanosoma Cruzi Infection In Heart Endothelial Cells, Ashutosh Arun, Kayla J. Rayford, Ayorinde Cooley, Girish Rachakonda, Fernando Villalta, Siddharth Pratap, Maria F. Lima, Nader Sheibani, Pius N. Nde Jul 2020

Thrombospondin-1 Plays An Essential Role In Yes-Associated Protein Nuclear Translocation During The Early Phase Of Trypanosoma Cruzi Infection In Heart Endothelial Cells, Ashutosh Arun, Kayla J. Rayford, Ayorinde Cooley, Girish Rachakonda, Fernando Villalta, Siddharth Pratap, Maria F. Lima, Nader Sheibani, Pius N. Nde

Publications and Research

The protozoan parasite Trypanosoma cruzi is the causative agent of Chagas disease. This neglected tropical disease causes severe morbidity and mortality in endemic regions. About 30% of T. cruzi infected individuals will present with cardiac complications. Invasive trypomastigotes released from infected cells can be carried in the vascular endothelial system to infect neighboring and distant cells. During the process of cellular infection, the parasite induces host cells, to increase the levels of host thrombospondin-1 (TSP-1), to facilitate the process of infection. TSP-1 plays important roles in the functioning of vascular cells, including vascular endothelial cells with important implications in cardiovascular …


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 Jun 2020

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 …


The Anti-Proliferative Effects Of Methotrexate And Novel Ucp1162 On Acute Myeloid Leukemia Cell Lines, Jacqueline Klepinger, Charles Giardina, Didem Ozcan May 2020

The Anti-Proliferative Effects Of Methotrexate And Novel Ucp1162 On Acute Myeloid Leukemia Cell Lines, Jacqueline Klepinger, Charles Giardina, Didem Ozcan

Honors Scholar Theses

Cancer cells proliferate at rapid rates due to the aberrant activity of proteins involved in regulating the cell cycle. This characteristic allows mutated cancer cells to spread and metastasize, causing lesions to form throughout the body. Two treatment conditions, one classical antifolate methotrexate (MTX) and non-classical, novel antifolate UCP1162, were tested on a panel of acute myeloid leukemia (AML) cell lines to determine if UCP1162 has higher anti-proliferative activity. High dose MTX is used as a first line chemotherapy in common childhood malignancies such as acute lymphoid leukemia (ALL). Methotrexate is excluded from acute myeloid leukemia (AML) treatments based on …


Diurnal Patterns Of Gene Expression In The Dorsal Vagal Complex And The Central Nucleus Of The Amygdala - Non-Rhythm-Generating Brain Regions, Mary M Staehle, Sean O'Sullivan, Rajanikanth Vadigepalli, Kate F Kernan, Gregory E Gonye, Babatunde A Ogunnaike, James S. Schwaber May 2020

Diurnal Patterns Of Gene Expression In The Dorsal Vagal Complex And The Central Nucleus Of The Amygdala - Non-Rhythm-Generating Brain Regions, Mary M Staehle, Sean O'Sullivan, Rajanikanth Vadigepalli, Kate F Kernan, Gregory E Gonye, Babatunde A Ogunnaike, James S. Schwaber

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Genes that establish the circadian clock have differential expression with respect to solar time in central and peripheral tissues. Here, we find circadian-time-induced differential expression in a large number of genes not associated with circadian rhythms in two brain regions lacking overt circadian function: the dorsal vagal complex (DVC) and the central nucleus of the amygdala (CeA). These regions primarily engage in autonomic, homeostatic, and emotional regulation. However, we find striking diurnal shifts in gene expression in these regions of male Sprague Dawley rats with no obvious patterns that could be attributed to function or region. These findings have implications …


Identifying Determinants Of Target Specificity In Two Related Bacterial Peptide Toxins, Andrew D. Holmes May 2020

Identifying Determinants Of Target Specificity In Two Related Bacterial Peptide Toxins, Andrew D. Holmes

Honors Thesis

Toxin-antitoxin (TA) systems were originally identified as two-component systems ensuring the stable inheritance of plasmids in bacterial populations. Recently, they have been identified on bacterial chromosomes where their functions remain mostly undefined. The par locus of E. faecalis plasmid pAD1 (parpAD1) was the first TA system defined in a Gram-positive bacterium and a homolog encoded on the E. faecalis chromosome (parEF0409) was later described. Related loci numbering in the hundreds have been identified throughout Gram-positive bacteria based on homology to the toxin of the system, Fst, and similarities in genetic organization and regulation. Despite …


Molecular Mechanisms Of Manganese Porphyrin Compounds In The Prevention Of Radiation-Induced Fibrosis, Shashank Shrishrimal May 2020

Molecular Mechanisms Of Manganese Porphyrin Compounds In The Prevention Of Radiation-Induced Fibrosis, Shashank Shrishrimal

Theses & Dissertations

Radiation therapy is frequently used as a treatment strategy for prostate cancer patients, which leads to several side effects due to damage to health tissue around the tumor and the development of radiation-induced fibrosis (RIF). Manganese (III) meso-tetrakis (N-ethylpyridinium-2-yl) porphyrin (MnTE-2-PyP or T2E or BMX-010) and other similar manganese porphyrin compounds that scavenge superoxide molecules have been demonstrated to be effective radioprotectors and prevent the development of RIF. However, understanding of the radioprotective molecular pathway associated with these compounds remains limited. Recent RNA-sequencing data from our laboratory revealed that MnTE-2-PyP treatment may activate the nuclear factor erythroid 2-related factor 2 …


How Can We Stop Cancer?, Joseph R. Current May 2020

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 …


Depressed Neuromuscular Transmission Causes Weakness In Mice Lacking Bk Potassium Channels, Xueyong Wang, Steven R.A. Burke, Robert J. Talmadge, Andrew A. Voss, Mark M. Rich May 2020

Depressed Neuromuscular Transmission Causes Weakness In Mice Lacking Bk Potassium Channels, Xueyong Wang, Steven R.A. Burke, Robert J. Talmadge, Andrew A. Voss, Mark M. Rich

Neuroscience, Cell Biology & Physiology Faculty Publications

Mice lacking functional large-conductance voltage- and Ca2+-activated K+ channels (BK channels) are viable but have motor deficits including ataxia and weakness. The cause of weakness is unknown. In this study, we discovered, in vivo, that skeletal muscle in mice lacking BK channels (BK−/−) was weak in response to nerve stimulation but not to direct muscle stimulation, suggesting a failure of neuromuscular transmission. Voltage-clamp studies of the BK−/− neuromuscular junction (NMJ) revealed a reduction in evoked endplate current amplitude and the frequency of spontaneous vesicle release compared with WT littermates. Responses to 50-Hz stimulation indicated a reduced probability of vesicle release …


Effects Of Nicotinamide Riboside And Beta-Hydroxybutyrate On C. Elegans Lifespan, Jeffery Peters May 2020

Effects Of Nicotinamide Riboside And Beta-Hydroxybutyrate On C. Elegans Lifespan, Jeffery Peters

Undergraduate Honors Theses

The nicotinamide riboside (NR) form of vitamin B3and the ketone body ß-hydroxybutyrate (BHB) are two of the most promising natural compounds yet identified for the treatment of aging and aging-related diseases. Forms of vitamin B3are precursors for the synthesis of the coenzymes nicotinamide adenine dinucleotide (NAD(H)) and nicotinamide adenine dinucleotide phosphate (NADP(H)). In aged cells levels of NAD+decline, decreasing metabolism and decreasing activity of protective sirtuin protein deacetylases. In aged cells NR, but not more common forms of vitamin B3, boost NAD+levels. BHB is naturally produced by the body when individuals fast …


Cloning, Protein Expression, And Characterization Of Interleukin 1 Alpha, Musaab Habeeb Ali Al Ameer May 2020

Cloning, Protein Expression, And Characterization Of Interleukin 1 Alpha, Musaab Habeeb Ali Al Ameer

Graduate Theses and Dissertations

Recombinant DNA technology and the ability to produce recombinant proteins have significantly changed the world of pharmaceutical market. Recombinant DNA technology using E. coli cells has successfully produced many therapeutic proteins. In this study, the designed tag Ark-RUBY-tag facilitates rapid, and reproducible purification of recombinant proteins expressed as inclusion bodies in E. coli cells. Purification of Ark-RUBY-fused recombinant protein(s) can be obtained by using imidazole fractions. Target protein can be easily removed from the Ark-RUBY-tag by enzymatic cleavage. Ark-RUBY-fused recombinant proteins can be quantitatively detected using polyclonal antibodies. Ark-RUBY-tag can be used to purify small peptides. By using Ark-RUBY-tag, purified …


Catabolic Degradation Of Endothelial Vegfa Via Autophagy, Thomas Neill, Carolyn Chen, Simone Buraschi, Renato V. Iozzo May 2020

Catabolic Degradation Of Endothelial Vegfa Via Autophagy, Thomas Neill, Carolyn Chen, Simone Buraschi, Renato V. Iozzo

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Extracellular matrix-evoked angiostasis and autophagy within the tumor microenvironment represent two critical, but unconnected, functions of the small leucine-rich proteoglycan, decorin. Acting as a partial agonist of vascular endothelial growth factor 2 (VEGFR2), soluble decorin signals via the energy sensing protein, AMP-activated protein kinase (AMPK), in the autophagic degradation of intracellular vascular endothelial growth factor A (VEGFA). Here, we discovered that soluble decorin evokes intracellular catabolism of endothelial VEGFA that is mechanistically independent of mTOR, but requires an autophagic regulator, paternally expressed gene 3 (PEG3). We found that administration of autophagic inhibitors such as chloroquine or bafilomycin A1, or depletion …


Effects Of Alternative Chemotherapeutic Agents On Thyroid Cancer Cell Line Ml-1, Husref Rizvanovic May 2020

Effects Of Alternative Chemotherapeutic Agents On Thyroid Cancer Cell Line Ml-1, Husref Rizvanovic

Graduate Theses/Dissertations

Though differentiated thyroid carcinomas have decent prognosis when detected early, radioactive iodine (RAI) resistant and advanced thyroid cancers are still difficult to treat with existing therapies. Better therapeutic agents are needed. Studies have shown that aggressive thyroid cancers (ML-1) express the extracellular matrix protein, matrix metalloproteinase (MMP-2). MMP-2 has been linked to metastasis and aggressiveness of several cancers and has been shown to play a crucial role in tumor invasion. Chlorotoxin is a selective MMP-2 receptor agonist, and Saporin is a well-known ribosome-inactivating protein used for anti-cancer treatment; however, these two agents have never been studied when conjugated together. I …


Discoidin Domain Receptor 1 Functionally Interacts With The Igf-I System In Bladder Cancer, Simone Buraschi, Alaide Morcavallo, Thomas Neill, Manuela Stefanello, Chiara Palladino, Shi-Qiong Xu, Antonino Belfiore, Renato V. Iozzo, Andrea Morrione May 2020

Discoidin Domain Receptor 1 Functionally Interacts With The Igf-I System In Bladder Cancer, Simone Buraschi, Alaide Morcavallo, Thomas Neill, Manuela Stefanello, Chiara Palladino, Shi-Qiong Xu, Antonino Belfiore, Renato V. Iozzo, Andrea Morrione

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

No abstract provided.


Alternative Polyadenylation Modulates Expression Of Pro-Fibrotic Proteins And Contributes To Lung Fibrosis, Junsuk Ko May 2020

Alternative Polyadenylation Modulates Expression Of Pro-Fibrotic Proteins And Contributes To Lung Fibrosis, Junsuk Ko

Dissertations and Theses (Open Access)

Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease which affects about 5 to 8 million individuals in the world. Despite the high prevalence, there is currently no cure for IPF, and the cause of this disease is still unclear. Our laboratory and collaborators have shown that nudix hydrolase 21 (NUDT21, which is also known as cleavage factor 25, CFIm25) is a key regulator of alternative polyadenylation (APA). NUDT21 depletion causes 3’UTR shortening via APA leading to enhanced mRNA stability and protein translation. This NUDT21 reduction promotes tumor growth in glioblastoma by enhancing expression of oncogenes. Cancer and IPF share …


How Immune T-Cell Augmentation Can Help Prevent Covid-19: A Possible Nutritional Solution Using Ketogenic Lifestyle, Ravi K. Kamepalli Md,Fidsa,Cwsp Apr 2020

How Immune T-Cell Augmentation Can Help Prevent Covid-19: A Possible Nutritional Solution Using Ketogenic Lifestyle, Ravi K. Kamepalli Md,Fidsa,Cwsp

The University of Louisville Journal of Respiratory Infections

No abstract provided.


Genetic Relationships And Therapeutic Options For Relapsed Acute Lymphoblastic Leukemia, Hailie Shertzer Apr 2020

Genetic Relationships And Therapeutic Options For Relapsed Acute Lymphoblastic Leukemia, Hailie Shertzer

Senior Honors Theses

Acute lymphoblastic leukemia (ALL) is the most common form of cancer among children and can be lethal to the adult population. Though 80% of patients with ALL reach complete remission after treatment, about 20% of those diagnosed fail to remain cancer-free. Genetic rearrangements are the hallmark of relapsed ALL, but the mechanism by which these rearrangements occur is still unclear. Recent research suggests these mutations may be detectable during initial diagnosis. If researchers are able to accurately assess the probability of relapse during diagnosis by analyzing the genome of the leukemic cells, the likelihood of administering effective therapy would increase. …


Covid 19 What You Need To Know, Dawn P. Wooley, Giancarlo Mariani, Craig Woolley, Laura M. Luehrmann Apr 2020

Covid 19 What You Need To Know, Dawn P. Wooley, Giancarlo Mariani, Craig Woolley, Laura M. Luehrmann

Neuroscience, Cell Biology & Physiology Faculty Publications

This is the first presentation in the new Shelter-in-Place lecture series. This first lecture is two-fold. First, it covers the basics of the COVID-19 virus including: how it spreads, possible origin, and other pertinent information. This portion of the presentation was followed by an overview of the international recruitment efforts in response to the virus, including: student perspectives, recruitment methods, and other important information.


Evidence That Brain-Reactive Autoantibodies Contribute To Chronic Neuronal Internalization Of Exogenous Amyloid-Β1-42 And Key Cell Surface Proteins During Alzheimer's Disease Pathogenesis, Eric L Goldwaser, Nimish K Acharya, Hao Wu, George A Godsey, Abhirup Sarkar, Cassandra A Demarshall, Mary C Kosciuk, Robert G Nagele Mar 2020

Evidence That Brain-Reactive Autoantibodies Contribute To Chronic Neuronal Internalization Of Exogenous Amyloid-Β1-42 And Key Cell Surface Proteins During Alzheimer's Disease Pathogenesis, Eric L Goldwaser, Nimish K Acharya, Hao Wu, George A Godsey, Abhirup Sarkar, Cassandra A Demarshall, Mary C Kosciuk, Robert G Nagele

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Blood-brain barrier (BBB) permeability is a recognized early feature of Alzheimer's disease (AD). In the present study, we examined consequences of increased BBB permeability on the development of AD-related pathology by tracking selected leaked plasma components and their interactions with neurons in vivo and in vitro. Histological sections of cortical regions of postmortem AD brains were immunostained to determine the distribution of amyloid-β1-42 (Aβ42), cathepsin D, IgG, GluR2/3, and alpha7 nicotinic acetylcholine receptor (α7nAChR). Results revealed that chronic IgG binding to pyramidal neurons coincided with internalization of Aβ42, IgG, GluR2/3, and α7nAChR as well as lysosomal compartment expansion in these …


The Impact Of Diabetic Foot Ulcers And Unilateral Offloading Footwear On Gait In People With Diabetes, Erica Ling, Brian Lepow, He Zhou, Ana Enriquez, Ashley Mullen, Bijan Najafi Mar 2020

The Impact Of Diabetic Foot Ulcers And Unilateral Offloading Footwear On Gait In People With Diabetes, Erica Ling, Brian Lepow, He Zhou, Ana Enriquez, Ashley Mullen, Bijan Najafi

Faculty, Staff and Students Publications

BACKGROUND: Unilateral offloading footwear prescribed to patients with diabetic foot ulcers elevates one limb relative to the other, which may lead to limp and abnormal gait. This study investigated whether the unilateral foot ulcer and offloading combination negatively impacts gait function beyond diabetic peripheral neuropathy.

METHODS: Eighty-six participants were recruited in 3 groups: 12 with diabetic peripheral neuropathy and unilateral foot ulcers wearing offloading footwear (offloading group, age = 55.6 ± 9.5 years, BMI = 30.9 ± 4.5 kg/m

FINDINGS: The offloading group exhibited deteriorated gait function compared to the non-diabetic group (p < 0.005, Cohen's effect size d = 0.90-2.61). They also had decreased gait speed (p < 0.001, d = 1.79) and stride length (p < 0.001, d = 1.76), as well as increased gait cycle time (p < 0.001, d = 1.67) and limp (p < 0.050, d = 0.72-1.49) compared to the neuropathy group. The offloading group showed increased gait unsteadiness compared to the neuropathy group, but the difference did not reach statistical significance in our samples.

INTERPRETATION: This study demonstrated that while diabetic …


Atypical Spindle Cell Lipomatous Tumor Under The Sesamoids In The Foot: A Case Report, Nilin M. Rao Dpm, Hani H. Saeed Dpm, Md, Facfas, Dustin Kruse Dpm, Bryan Raymond Dpm, Paul A. Stone Dpm, Facfas Feb 2020

Atypical Spindle Cell Lipomatous Tumor Under The Sesamoids In The Foot: A Case Report, Nilin M. Rao Dpm, Hani H. Saeed Dpm, Md, Facfas, Dustin Kruse Dpm, Bryan Raymond Dpm, Paul A. Stone Dpm, Facfas

Podiatry

Atypical spindle cell lipomatous (ASCL) tumors have a distinct histological and clinical presentation, rarely presenting in the foot. With the sub-sesamoidal location of this neoplasm found in our case report being an unusual location for atypical spindle cell lipomatous tumors to present, the purpose of our case report was to present the clinical presentation, histology/pathology, method of resection and outcome of our patient on follow-up to provide a framework for other surgeons on how to approach these neoplasms in the future.


Nanocatalytic Activity Of Clean-Surfaced, Faceted Nanocrystalline Gold Enhances Remyelination In Animal Models Of Multiple Sclerosis., Andrew P. Robinson, Joanne Zhongyan Zhang, Haley E. Titus, Molly Karl, Mikhail Merzliakov, Adam R. Dorfman, Stephen Karlik, Michael G G. Stewart, Richard K. Watt, Benjin D. Facer, Jon D. Facer, Noah D. Christian, Karen S. Ho, Michael T. Hotchkin, Mark G. Mortenson, Robert H. Miller, Stephen D. Miller Feb 2020

Nanocatalytic Activity Of Clean-Surfaced, Faceted Nanocrystalline Gold Enhances Remyelination In Animal Models Of Multiple Sclerosis., Andrew P. Robinson, Joanne Zhongyan Zhang, Haley E. Titus, Molly Karl, Mikhail Merzliakov, Adam R. Dorfman, Stephen Karlik, Michael G G. Stewart, Richard K. Watt, Benjin D. Facer, Jon D. Facer, Noah D. Christian, Karen S. Ho, Michael T. Hotchkin, Mark G. Mortenson, Robert H. Miller, Stephen D. Miller

Student Papers, Posters & Projects

Development of pharmacotherapies that promote remyelination is a high priority for multiple sclerosis (MS), due to their potential for neuroprotection and restoration of function through repair of demyelinated lesions. A novel preparation of clean-surfaced, faceted gold nanocrystals demonstrated robust remyelinating activity in response to demyelinating agents in both chronic cuprizone and acute lysolecithin rodent animal models. Furthermore, oral delivery of gold nanocrystals improved motor functions of cuprizone-treated mice in both open field and kinematic gait studies. Gold nanocrystal treatment of oligodendrocyte precursor cells in culture resulted in oligodendrocyte maturation and expression of myelin differentiation markers. Additional in vitro data demonstrated …


Expression Of Tryptophan 2,3-Dioxygenase In Metastatic Uveal Melanoma, Mizue Terai, Eric R Londin, Ankit Rochani, Emma Link, Bao Lam, Gagan Kaushal, Alok Bhushan, Marlana Orloff, Takami Sato Feb 2020

Expression Of Tryptophan 2,3-Dioxygenase In Metastatic Uveal Melanoma, Mizue Terai, Eric R Londin, Ankit Rochani, Emma Link, Bao Lam, Gagan Kaushal, Alok Bhushan, Marlana Orloff, Takami Sato

Kimmel Cancer Center Faculty Papers

Uveal melanoma (UM) is the most common primary eye malignancy in adults and up to 50% of patients subsequently develop systemic metastasis. Metastatic uveal melanoma (MUM) is highly resistant to immunotherapy. One of the mechanisms for resistance would be the immune-suppressive tumor microenvironment. Here, we have investigated the role of tryptophan 2,3-dioxygenase (TDO) in UM. Both TDO and indoleamine 2,3-dioxygenase (IDO) catalyze tryptophan and produce kynurenine, which could cause inhibition of T cell immune responses. We first studied the expression of TDO on tumor tissue specimens obtained from UM hepatic metastasis. High expression of TDO protein was confirmed in all …


Prostate Field Cancerization And Exosomes: Association Between Cd9, Early Growth Response 1 And Fatty Acid Synthase, Farideh Amirrad, Philip A. Pytak, Neda Sadeghiani-Pelar, Julie P. T. Nguyen, Emily L. Cauble, Anna C. Jones Feb 2020

Prostate Field Cancerization And Exosomes: Association Between Cd9, Early Growth Response 1 And Fatty Acid Synthase, Farideh Amirrad, Philip A. Pytak, Neda Sadeghiani-Pelar, Julie P. T. Nguyen, Emily L. Cauble, Anna C. Jones

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Intracapsular and well‑defined adenocarcinomas of the prostate are often surrounded by tissue areas that harbor molecular aberrations, including those of genetic, epigenetic and biochemical nature. This is known as field cancerization, or a field effect and denotes a state of pre‑malignancy. Such alterations in histologically normal tumor‑adjacent prostatic tissues have been recognized as clinically important and are potentially exploitable as biomarkers of disease and/or targets for preventative/therapeutic intervention. The authors have previously identified and validated two protein markers of field cancerization: The expressional upregulation of the transcription factor early growth response 1 (EGR‑1) and the lipogenic enzyme fatty acid synthase …


Investigating The Potential And Pitfalls Of Ev-Encapsulated Micrornas As Circulating Biomarkers Of Breast Cancer, Brian M. Moloney, Katie E. Gilligan, Doireann P. Joyce, Clodagh P. O'Neill, Killian P. O'Brien, Sonja Khan, Claire L. Glynn, Ronan M. Waldron, Ciarán M. Maguire, Emma Holian, Erin Naughton, Mohamed Elhadi, Andrea B. Grealish, Carmel Malone, Emma Mcdermott, Peter Dockery, Thomas Ritter, Adriele Prina-Mello, Michael J. Kerin, Róisín M. Dwyer Jan 2020

Investigating The Potential And Pitfalls Of Ev-Encapsulated Micrornas As Circulating Biomarkers Of Breast Cancer, Brian M. Moloney, Katie E. Gilligan, Doireann P. Joyce, Clodagh P. O'Neill, Killian P. O'Brien, Sonja Khan, Claire L. Glynn, Ronan M. Waldron, Ciarán M. Maguire, Emma Holian, Erin Naughton, Mohamed Elhadi, Andrea B. Grealish, Carmel Malone, Emma Mcdermott, Peter Dockery, Thomas Ritter, Adriele Prina-Mello, Michael J. Kerin, Róisín M. Dwyer

Forensic Science Publications

Extracellular vesicles (EVs) shuttle microRNA (miRNA) throughout the circulation and are believed to represent a fingerprint of the releasing cell. We isolated and characterized serum EVs of breast tumour-bearing animals, breast cancer (BC) patients, and healthy controls. EVs were characterized using transmission electron microscopy (TEM), protein quantification, western blotting, and nanoparticle tracking analysis (NTA). Absolute quantitative (AQ)-PCR was employed to analyse EV-miR-451a expression. Isolated EVs had the appropriate morphology and size. Patient sera contained significantly more EVs than did healthy controls. In tumour-bearing animals, a correlation between serum EV number and tumour burden was observed. There was no significant relationship …


Dysfunctional Mitochondrial Biogenesis: A Potential Underlying Cause For Metabolic Diseases, Caroline Ann Hunter Jan 2020

Dysfunctional Mitochondrial Biogenesis: A Potential Underlying Cause For Metabolic Diseases, Caroline Ann Hunter

Theses, Dissertations and Capstones

Mitochondria are essential organelles that play crucial roles in many aspects of cellular homeostasis. More importantly, the mitochondria are home to the majority of the metabolic pathways within the cell and are responsible for producing most of the cell’s useable energy in the form of adenine triphosphate (ATP) through oxidative phosphorylation (OXPHOS). In mammals, the majority of OXPHOS complex subunits are encoded by nuclear deoxyribonucleic acid (DNA); however, 13 core subunits essential for the function of OXPHOS complexes I, III, IV, and V are encoded in the mitochondrial (mt) DNA (mtDNA) and are synthesized within the mitochondria by its own …


First-Time Characterization Of Viable But Non-Culturable Proteus Mirabilis: Induction And Resuscitation, Reham Wasfi, G. R. Abdellatif, H. M. Elshishtawy, Hossam M. Ashour Jan 2020

First-Time Characterization Of Viable But Non-Culturable Proteus Mirabilis: Induction And Resuscitation, Reham Wasfi, G. R. Abdellatif, H. M. Elshishtawy, Hossam M. Ashour

USF St. Petersburg Campus Faculty Publications

Pathogenic bacteria can enter into a viable but non-culturable (VBNC) state under unfavourable conditions. Proteus mirabilis is responsible for dire clinical consequences including septicaemia, urinary tract infections and pneumonia, but is not a species previously known to enter VBNC state. We suggested that stress-induced P. mirabilis can enter a VBNC state in which it retains virulence. P. mirabilis isolates were incubated in extreme osmotic pressure, starvation, low temperature and low pH to induce a VBNC state. Resuscitation was induced by temperature upshift and inoculation in tryptone soy broth with Tween 20 and brain heart infusion broth. Cellular ultrastructure and gene …


Long Non-Coding Rna Profiling Of Pediatric Medulloblastoma, Varun Kesherwani, Mamta Shukla, Don W. Coulter, J. Graham Sharp, Shantaram Joshi, Nagendra K. Chaturvedi Jan 2020

Long Non-Coding Rna Profiling Of Pediatric Medulloblastoma, Varun Kesherwani, Mamta Shukla, Don W. Coulter, J. Graham Sharp, Shantaram Joshi, Nagendra K. Chaturvedi

Journal Articles: Genetics, Cell Biology & Anatomy

BACKGROUND: Medulloblastoma (MB) is one of the most common malignant cancers in children. MB is primarily classified into four subgroups based on molecular and clinical characteristics as (1) WNT (2) Sonic-hedgehog (SHH) (3) Group 3 (4) Group 4. Molecular characteristics used for MB classification are based on genomic and mRNAs profiles. MB subgroups share genomic and mRNA profiles and require multiple molecular markers for differentiation from each other. Long non-coding RNAs (lncRNAs) are more than 200 nucleotide long RNAs and primarily involve in gene regulation at epigenetic and post-transcriptional levels. LncRNAs have been recognized as diagnostic and prognostic markers in …