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

Digital Commons Network™

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

Medical Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 5881 - 5910 of 8678

Full-Text Articles in Entire DC Network

High Fat Diet Upregulates Fatty Acid Oxidation And Ketogenesis Via Intervention Of Ppar-Γ., Kunal Sikder, Sanket Kumar Shukla, Neel Patel, Harpreet Singh, Khadija Rafiq Aug 2018

High Fat Diet Upregulates Fatty Acid Oxidation And Ketogenesis Via Intervention Of Ppar-Γ., Kunal Sikder, Sanket Kumar Shukla, Neel Patel, Harpreet Singh, Khadija Rafiq

Center for Translational Medicine Faculty Papers

BACKGROUND/AIMS: Systemic hyperlipidemia and intracellular lipid accumulation induced by chronic high fat diet (HFD) leads to enhanced fatty acid oxidation (FAO) and ketogenesis. The present study was aimed to determine whether activation of peroxisome proliferator-activated receptor-γ (PPAR-γ) by surplus free fatty acids (FA) in hyperlipidemic condition, has a positive feedback regulation over FAO and ketogenic enzymes controlling lipotoxicity and cardiac apoptosis.

METHODS: 8 weeks old C57BL/6 wild type (WT) or PPAR-γ-/- mice were challenged with 16 weeks 60% HFD to induce obesity mediated type 2 diabetes mellitus (T2DM) and diabetic cardiomyopathy. Treatment course was followed by echocardiographic measurements, glycemic and …


Evaluation Of Endothelial Cell Responses To Elevated Glucose, Gabriella Sugerman Aug 2018

Evaluation Of Endothelial Cell Responses To Elevated Glucose, Gabriella Sugerman

Master's Theses

Developing a tissue-engineered Blood Vessel Mimic (BVM) to represent diabetic macrovascular disease could expedite design of new vascular devices specifically tailored to diabetic patients. In contribution toward this model, this thesis assessed Human Umbilical Vein Endothelial Cell (HUVEC) responses to high glucose conditions. Interleukin 6 (IL-6) and Cluster of Differentiation 36 (CD36) were selected to signify oxidative stress activity, a hallmark of diabetic macrovascular disease. Next, activity of potential reference genes B2M, HPRT1, and ACTB was assessed. All genes were found to exceed acceptable variability, so the E-ΔC T method of data analysis was selected. Next, cellular responses to high …


Building A Bridge Between Genetics And Outcomes Research: Application In Autism (The Autgo Study)., Zohreh Talebizadeh, Ayten Shah, Pcori Eain-2419 Working Group Aug 2018

Building A Bridge Between Genetics And Outcomes Research: Application In Autism (The Autgo Study)., Zohreh Talebizadeh, Ayten Shah, Pcori Eain-2419 Working Group

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Concerns over the need to improve translational aspects of genetics research studies and engaging community members in the research process have been noted in the literature and raised by patient advocates. In addition to the work done by patient advocacy groups, organizations such as the Patient-Centered Outcomes Research Institute advocate for a change in the culture of research from being researcher-driven to becoming more patient-driven.

OBJECTIVE: Our project, Autism Genetics and Outcomes (AutGO), consists of two phases. The goal for phase I was to initiate a general discussion around the main topic (i.e., linking genetics and outcomes research). We …


Bayesian Analytical Approaches For Metabolomics : A Novel Method For Molecular Structure-Informed Metabolite Interaction Modeling, A Novel Diagnostic Model For Differentiating Myocardial Infarction Type, And Approaches For Compound Identification Given Mass Spectrometry Data., Patrick J. Trainor Aug 2018

Bayesian Analytical Approaches For Metabolomics : A Novel Method For Molecular Structure-Informed Metabolite Interaction Modeling, A Novel Diagnostic Model For Differentiating Myocardial Infarction Type, And Approaches For Compound Identification Given Mass Spectrometry Data., Patrick J. Trainor

Electronic Theses and Dissertations

Metabolomics, the study of small molecules in biological systems, has enjoyed great success in enabling researchers to examine disease-associated metabolic dysregulation and has been utilized for the discovery biomarkers of disease and phenotypic states. In spite of recent technological advances in the analytical platforms utilized in metabolomics and the proliferation of tools for the analysis of metabolomics data, significant challenges in metabolomics data analyses remain. In this dissertation, we present three of these challenges and Bayesian methodological solutions for each. In the first part we develop a new methodology to serve a basis for making higher order inferences in metabolomics, …


Week Of July 17, 2018, New York Medical College Jul 2018

Hyperthermia Induces Therapeutic Effectiveness And Potentiates Adjuvant Therapy With Nontargeted And Targeted Drugs In An In Vitro Model Of Human Malignant Melanoma, T. Mantso, S. Vasileiadis, I. Anestopoulos, G. P. Voulgaridou, E. Lampri, S. Botaitis, E. N. Kontomanolis, C. Simopoulos, G. Goussetis, R. Franco, K. Chlichlia, A. Pappa, M. I. Panayiotidis Jul 2018

Hyperthermia Induces Therapeutic Effectiveness And Potentiates Adjuvant Therapy With Nontargeted And Targeted Drugs In An In Vitro Model Of Human Malignant Melanoma, T. Mantso, S. Vasileiadis, I. Anestopoulos, G. P. Voulgaridou, E. Lampri, S. Botaitis, E. N. Kontomanolis, C. Simopoulos, G. Goussetis, R. Franco, K. Chlichlia, A. Pappa, M. I. Panayiotidis

School of Veterinary and Biomedical Sciences: Faculty Publications

In the present study, we have aimed to characterize the intrinsic, extrinsic and ER-mediated apoptotic induction by hyperthermia in an in vitro model of human malignant melanoma and furthermore, to evaluate its therapeutic effectiveness in an adjuvant therapeutic setting characterized by combinational treatments with non-targeted (Dacarbazine & Temozolomide) and targeted (Dabrafenib & Vemurafenib) drugs. Overall, our data showed that both low (43 °C) and high (45 °C) hyperthermic exposures were capable of inducing cell death by activating all apoptotic pathways but in a rather distinct manner. More specifically, low hyperthermia induced extrinsic and intrinsic apoptotic pathways both of which activated …


Coupling Of Smoothened To Inhibitory G Proteins Reduces Voltage-Gated K, Lan Cheng, Moza Al-Owais, Manuel Covarrubias, Walter J. Koch, David R. Manning, Chris Peers, Natalia A Riobo-Del Galdo Jul 2018

Coupling Of Smoothened To Inhibitory G Proteins Reduces Voltage-Gated K, Lan Cheng, Moza Al-Owais, Manuel Covarrubias, Walter J. Koch, David R. Manning, Chris Peers, Natalia A Riobo-Del Galdo

Department of Biochemistry and Molecular Biology Faculty Papers

SMO (Smoothened), the central transducer of Hedgehog signaling, is coupled to heterotrimeric Gi proteins in many cell types, including cardiomyocytes. In this study, we report that activation of SMO with SHH (Sonic Hedgehog) or a small agonist, purmorphamine, rapidly causes a prolongation of the action potential duration that is sensitive to a SMO inhibitor. In contrast, neither of the SMO agonists prolonged the action potential in cardiomyocytes from transgenic GiCT/TTA mice, in which Gi signaling is impaired, suggesting that the effect of SMO is mediated by Gi proteins. Investigation of the mechanism underlying the change …


Stable Isotope-Resolved Metabolomics Shows Metabolic Resistance To Anti-Cancer Selenite In 3d Spheroids Versus 2d Cell Cultures, Teresa W. -M. Fan, Salim S. El-Amouri, Jessica K. A. Macedo, Qing Jun Wang, Huan Song, Teresa Cassel, Andrew N. Lane Jul 2018

Stable Isotope-Resolved Metabolomics Shows Metabolic Resistance To Anti-Cancer Selenite In 3d Spheroids Versus 2d Cell Cultures, Teresa W. -M. Fan, Salim S. El-Amouri, Jessica K. A. Macedo, Qing Jun Wang, Huan Song, Teresa Cassel, Andrew N. Lane

Center for Environmental and Systems Biochemistry Faculty Publications

Conventional two-dimensional (2D) cell cultures are grown on rigid plastic substrates with unrealistic concentration gradients of O2, nutrients, and treatment agents. More importantly, 2D cultures lack cell–cell and cell–extracellular matrix (ECM) interactions, which are critical for regulating cell behavior and functions. There are several three-dimensional (3D) cell culture systems such as Matrigel, hydrogels, micropatterned plates, and hanging drop that overcome these drawbacks but they suffer from technical challenges including long spheroid formation times, difficult handling for high throughput assays, and/or matrix contamination for metabolic studies. Magnetic 3D bioprinting (M3DB) can circumvent these issues by utilizing nanoparticles that enable …


Ca2+, Astrocyte Activation And Calcineurin/Nfat Signaling In Age-Related Neurodegenerative Diseases, Pradoldej Sompol, Christopher M. Norris Jul 2018

Ca2+, Astrocyte Activation And Calcineurin/Nfat Signaling In Age-Related Neurodegenerative Diseases, Pradoldej Sompol, Christopher M. Norris

Sanders-Brown Center on Aging Faculty Publications

Mounting evidence supports a fundamental role for Ca2+ dysregulation in astrocyte activation. Though the activated astrocyte phenotype is complex, cell-type targeting approaches have revealed a number of detrimental roles of activated astrocytes involving neuroinflammation, release of synaptotoxic factors and loss of glutamate regulation. Work from our lab and others has suggested that the Ca2+/calmodulin dependent protein phosphatase, calcineurin (CN), provides a critical link between Ca2+ dysregulation and the activated astrocyte phenotype. A proteolyzed, hyperactivated form of CN appears at high levels in activated astrocytes in both human tissue and rodent tissue around regions of amyloid and …


Week Of July 9, 2018, New York Medical College Jul 2018

Effects Of Mild Traumatic Brain Injury On Ethanol Consumption And The Combined Effects On Neuroinflammation, Cognition, And Behavior In Mice, Jessica L. Hoffman Jul 2018

Effects Of Mild Traumatic Brain Injury On Ethanol Consumption And The Combined Effects On Neuroinflammation, Cognition, And Behavior In Mice, Jessica L. Hoffman

USF Tampa Graduate Theses and Dissertations

The relationship between alcohol consumption and traumatic brain injury (TBI) often focuses on alcohol consumption increasing the likelihood of incurring a TBI, rather than alcohol use outcomes after TBI. This focus is in part due to the large numbers of TBI patients visiting emergency rooms notable levels of alcohol in their blood. Additionally, increases in alcohol use disorders following TBI can be predicted by previous history of alcohol use. However, studies have also shown patients without a history of an alcohol use disorder can experience increases in problem drinking after single or multiple TBIs. Due to the diffuse impact of …


Introductory Medical Microbiology, Veronica Morin, Andrew Dawson Jul 2018

Introductory Medical Microbiology, Veronica Morin, Andrew Dawson

Biological Sciences Grants Collections

This Grants Collection for Introductory Medical Microbiology was created under a Round Nine ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

  • Linked Syllabus
  • Initial Proposal
  • Final Report


Retrograde Axonal Transport Of Rabies Virus Is Unaffected By Interferon Treatment But Blocked By Emetine Locally In Axons., Margaret A. Macgibeny, Orkide O. Koyuncu, Christoph Wirblich, Matthias J. Schnell, Lynn W. Enquist Jul 2018

Retrograde Axonal Transport Of Rabies Virus Is Unaffected By Interferon Treatment But Blocked By Emetine Locally In Axons., Margaret A. Macgibeny, Orkide O. Koyuncu, Christoph Wirblich, Matthias J. Schnell, Lynn W. Enquist

Department of Microbiology and Immunology Faculty Papers

Neuroinvasive viruses, such as alpha herpesviruses (αHV) and rabies virus (RABV), initially infect peripheral tissues, followed by invasion of the innervating axon termini. Virus particles must undergo long distance retrograde axonal transport to reach the neuron cell bodies in the peripheral or central nervous system (PNS/CNS). How virus particles hijack the axonal transport machinery and how PNS axons respond to and regulate infection are questions of significant interest. To track individual virus particles, we constructed a recombinant RABV expressing a P-mCherry fusion protein, derived from the virulent CVS-N2c strain. We studied retrograde RABV transport in the presence or absence of …


Preparation And Characterization Of Functionalized Heparin-Loaded Poly-Ɛ-Caprolactone Fibrous Mats To Prevent Infection With Human Papillomaviruses, Daniela Gonzalez, Jorge Ragusa, Peter C. Angeletti, Gustavo F. Larsen Jul 2018

Preparation And Characterization Of Functionalized Heparin-Loaded Poly-Ɛ-Caprolactone Fibrous Mats To Prevent Infection With Human Papillomaviruses, Daniela Gonzalez, Jorge Ragusa, Peter C. Angeletti, Gustavo F. Larsen

Department of Chemical and Biomolecular Engineering: Faculty Publications

In this study, heparin-loaded poly-ε-caprolactone (PCL) fibrous mats were prepared and characterized based on their physical, cytotoxic, thermal, and biological properties. The main objective of the work described here was to test the hypothesis that incorporation of heparin into a PCL carrier could serve as bio-compatible material capable of inhibiting Human Papillomavirus (HPV) infection. The idea of firmly anchoring heparin to capture soluble virus, vs. a slow heparin release to inhibit a virus in solution was tested. Thus, one material was produced via conventional heparin matrix encapsulation and electrohydrodynamic fiber processing in one step. A second type of material was …


Developmental Steps For A Functional Three-Dimensional Cell Culture System For The Study Of Asymmetrical Division Of Neural Stem Cells, Martina Zamponi Jul 2018

Developmental Steps For A Functional Three-Dimensional Cell Culture System For The Study Of Asymmetrical Division Of Neural Stem Cells, Martina Zamponi

Biomedical Engineering Theses & Dissertations

Stem cells are a cell type present during and following development, which possess self- renewal properties, as well as the ability to differentiate into specific cells. Asymmetrical division is the cellular process that allows stem cells to produce one differentiated and one un-differentiated daughter cell during the same mitotic event. Insights in the molecular mechanisms of such process are minimal, due to the absence of effective methods for its targeted study. Currently, traditional methods of investigation include monolayer cell culture and animal models. The first poses structural limitations to the accurate representation of human tissue and cell structures, while animal …


Design, Synthesis, And Evaluation Of Homochiral Peptides Containing Arginine And Histidine As Molecular Transporters, Naglaa Salem El-Sayed, Taryn Miyake, Amir Nasrolahi Shirazi, Shang Eun Park, Jimmy Clark, Stephani Buchholz, Keykavous Parang, Rakesh Tiwari Jun 2018

Design, Synthesis, And Evaluation Of Homochiral Peptides Containing Arginine And Histidine As Molecular Transporters, Naglaa Salem El-Sayed, Taryn Miyake, Amir Nasrolahi Shirazi, Shang Eun Park, Jimmy Clark, Stephani Buchholz, Keykavous Parang, Rakesh Tiwari

Pharmacy Faculty Articles and Research

Linear (HR)n and cyclic [HR]n peptides (n = 4,5) containing alternate arginine and histidine residues were synthesized. The peptides showed 0–15% cytotoxicity at 5–100 μM in human ovarian adenocarcinoma (SK-OV-3) cells while they exhibited 0–12% toxicity in human leukemia cancer cell line (CCRF-CEM). Among all peptides, cyclic [HR]4 peptide was able to improve the delivery of a cell impermeable fluorescence-labeled phosphopeptide by two-fold. Fatty acids of different alkyl chain length were attached at the N-terminal of the linear peptide (HR)4 to improve the molecular transporter property. Addition of fatty acyl chains was expected to help with the permeation of the …


Regulations Of Pathogenic Cd4+ T Helper Lymphocytes In Inflammatory Diseases, Handong Zheng Jun 2018

Regulations Of Pathogenic Cd4+ T Helper Lymphocytes In Inflammatory Diseases, Handong Zheng

Biomedical Sciences ETDs

In this comprehensive project, three interrelated studies with distinct foci were employed to understand the regulations of specific CD4+ T helper cell population in inflammatory diseases.

Pathogenic TH17 cells play an essential role in the initiation and development of both human multiple sclerosis (MS) and animal experimental autoimmune encephalomyelitis (EAE). Nevertheless, the underlying mechanism by which the pathogenicity of TH17 cells is controlled in the autoimmune neuro-inflammation remains unclear. In aim 1, we revealed that lumican (Lum), an extracellular matrix (ECM) protein, negatively regulates encephalitic TH17 cell responses. Our findings highlighted a TH17 cell-intrinsic effect of Lum in suppressing …


Novel Role Of Prostate Apoptosis Response-4 Tumor Suppressor In B-Cell Chronic Lymphocytic Leukemia, Mary Kathryn Mckenna, Sunil K. Noothi, Sara S. Alhakeem, Karine Z. Oben, Joseph T. Greene, Rajeswaran Mani, Kathryn L. Perry, James P. Collard, Jacqueline R. Rivas, Gerhard C. Hildebrandt, Roger A. Fleischman, Eric B. Durbin, John C. Byrd, Chi Wang, Natarajan Muthusamy, Vivek M. Rangnekar, Subbarao Bondada Jun 2018

Novel Role Of Prostate Apoptosis Response-4 Tumor Suppressor In B-Cell Chronic Lymphocytic Leukemia, Mary Kathryn Mckenna, Sunil K. Noothi, Sara S. Alhakeem, Karine Z. Oben, Joseph T. Greene, Rajeswaran Mani, Kathryn L. Perry, James P. Collard, Jacqueline R. Rivas, Gerhard C. Hildebrandt, Roger A. Fleischman, Eric B. Durbin, John C. Byrd, Chi Wang, Natarajan Muthusamy, Vivek M. Rangnekar, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Prostate apoptosis response-4 (Par-4), a proapoptotic tumor suppressor protein, is downregulated in many cancers including renal cell carcinoma, glioblastoma, endometrial, and breast cancer. Par-4 induces apoptosis selectively in various types of cancer cells but not normal cells. We found that chronic lymphocytic leukemia (CLL) cells from human patients and from Eµ-Tcl1 mice constitutively express Par-4 in greater amounts than normal B-1 or B-2 cells. Interestingly, knockdown of Par-4 in human CLL-derived Mec-1 cells results in a robust increase in p21/WAF1 expression and decreased growth due to delayed G1-to-S cell-cycle transition. Lack of Par-4 also increased the expression of p21 and …


Local Bdnf Delivery To The Injured Cervical Spinal Cord Using An Engineered Hydrogel Enhances Diaphragmatic Respiratory Function., Biswarup Ghosh, Zhicheng Wang, Jia Nong, Mark W. Urban, Zhiling Zhang, Victoria A. Trovillion, Megan C. Wright, Yinghui Zhong, Angelo C. Lepore Jun 2018

Local Bdnf Delivery To The Injured Cervical Spinal Cord Using An Engineered Hydrogel Enhances Diaphragmatic Respiratory Function., Biswarup Ghosh, Zhicheng Wang, Jia Nong, Mark W. Urban, Zhiling Zhang, Victoria A. Trovillion, Megan C. Wright, Yinghui Zhong, Angelo C. Lepore

Farber Institute for Neuroscience Faculty Papers

We developed an innovative biomaterial-based approach to repair the critical neural circuitry that controls diaphragm activation by locally delivering brain-derived neurotrophic factor (BDNF) to injured cervical spinal cord. BDNF can be used to restore respiratory function via a number of potential repair mechanisms; however, widespread BDNF biodistribution resulting from delivery methods such as systemic injection or lumbar puncture can lead to inefficient drug delivery and adverse side effects. As a viable alternative, we developed a novel hydrogel-based system loaded with polysaccharide-BDNF particles self-assembled by electrostatic interactions that can be safely implanted in the intrathecal space for achieving local BDNF delivery …


Snf1 Cooperates With The Cwi Mapk Pathway To Mediate The Degradation Of Med13 Following Oxidative Stress, Stephen D Willis, David C Stieg, Kai Li Ong, Ravina Shah, Alexandra K. Strich, Julianne H Grose, Katrina F Cooper Jun 2018

Snf1 Cooperates With The Cwi Mapk Pathway To Mediate The Degradation Of Med13 Following Oxidative Stress, Stephen D Willis, David C Stieg, Kai Li Ong, Ravina Shah, Alexandra K. Strich, Julianne H Grose, Katrina F Cooper

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Eukaryotic cells, when faced with unfavorable environmental conditions, mount either pro-survival or pro-death programs. The conserved cyclin C-Cdk8 kinase plays a key role in this decision. Both are members of the Cdk8 kinase module that, along with Med12 and Med13, associate with the core Mediator complex of RNA polymerase II. In Saccharomyces cerevisiae, oxidative stress triggers Med13 destruction, which releases cyclin C into the cytoplasm to promote mitochondrial fission and programmed cell death. The SCFGrr1 ubiquitin ligase mediates Med13 degradation dependent on the cell wall integrity pathway, MAPK Slt2. Here we show that the AMP kinase Snf1 activates a second …


The Effect Of Hyperthermia On Liver Cell Viability, Jada Grant Jun 2018

The Effect Of Hyperthermia On Liver Cell Viability, Jada Grant

The International Student Science Fair 2018

Hyperthermia is a treatment for liver cancer where the tumor is exposed to a relatively high heat temperature. This process is designed to make the tumor more susceptible to chemotherapy. My thought process was that if hyperthermia can kill cancerous cells, then there will be negative long term effects on the noncancerous cells surrounding the tumor. The project experimented on Kidney cells because the Kidney and Liver both go through the process of filtration. This means that the Kidney cells should give similar results that Liver cells would. Kidney cells were heated at 40 degrees Celsius for time amounts of …


Week Of June 19, 2018, New York Medical College Jun 2018

Concurrent Regulation Of Lkb1 And Camkk2 In The Activation Of Ampk In Castrate-Resistant Prostate Cancer By A Well-Defined Polyherbal Mixture With Anticancer Properties., Amber F. Macdonald, Ahmed Bettaieb, Dallas R. Donohoe, Dina S. Alani, Anna Han, Yi Zhao, Jay Whelan Jun 2018

Concurrent Regulation Of Lkb1 And Camkk2 In The Activation Of Ampk In Castrate-Resistant Prostate Cancer By A Well-Defined Polyherbal Mixture With Anticancer Properties., Amber F. Macdonald, Ahmed Bettaieb, Dallas R. Donohoe, Dina S. Alani, Anna Han, Yi Zhao, Jay Whelan

Department of Cancer Biology Faculty Papers

BACKGROUND: Zyflamend, a blend of herbal extracts, effectively inhibits tumor growth using preclinical models of castrate-resistant prostate cancer mediated in part by 5'-adenosine monophosphate-activated protein kinase (AMPK), a master energy sensor of the cell. Clinically, treatment with Zyflamend and/or metformin (activators of AMPK) had benefits in castrate-resistant prostate cancer patients who no longer responded to treatment. Two predominant upstream kinases are known to activate AMPK: liver kinase B1 (LKB1), a tumor suppressor, and calcium-calmodulin kinase kinase-2 (CaMKK2), a tumor promotor over-expressed in many cancers. The objective was to interrogate how Zyflamend activates AMPK by determining the roles of LKB1 and …


Chronic Lymphocytic Leukemia-Derived Il-10 Suppresses Antitumor Immunity., Sara S Alhakeem, Mary K Mckenna, Karine Z Oben, Sunil K Noothi, Jacqueline R Rivas, Gerhard C Hildebrandt, Roger A Fleischman, Vivek M Rangnekar, Natarajan Muthusamy, Subbarao Bondada Jun 2018

Chronic Lymphocytic Leukemia-Derived Il-10 Suppresses Antitumor Immunity., Sara S Alhakeem, Mary K Mckenna, Karine Z Oben, Sunil K Noothi, Jacqueline R Rivas, Gerhard C Hildebrandt, Roger A Fleischman, Vivek M Rangnekar, Natarajan Muthusamy, Subbarao Bondada

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Chronic lymphocytic leukemia (CLL) patients progressively develop an immunosuppressive state. CLL patients have more plasma IL-10, an anti-inflammatory cytokine, than healthy controls. In vitro human CLL cells produce IL-10 in response to BCR cross-linking. We used the transgenic Eμ-T cell leukemia oncogene-1 (


Mir126-5p Downregulation Facilitates Axon Degeneration And Nmj Disruption Via A Non-Cell-Autonomous Mechanism In Als., Roy Maimon, Ariel Ionescu, Avichai Bonnie, Sahar Sweetat, Shane Wald-Altman, Shani Inbar, Tal Gradus, Davide Trotti, Miguel Weil, Oded Behar, Eran Perlson Jun 2018

Mir126-5p Downregulation Facilitates Axon Degeneration And Nmj Disruption Via A Non-Cell-Autonomous Mechanism In Als., Roy Maimon, Ariel Ionescu, Avichai Bonnie, Sahar Sweetat, Shane Wald-Altman, Shani Inbar, Tal Gradus, Davide Trotti, Miguel Weil, Oded Behar, Eran Perlson

Farber Institute for Neuroscience Faculty Papers

Axon degeneration and disruption of neuromuscular junctions (NMJs) are key events in amyotrophic lateral sclerosis (ALS) pathology. Although the disease's etiology is not fully understood, it is thought to involve a non-cell-autonomous mechanism and alterations in RNA metabolism. Here, we identified reduced levels of miR126-5p in presymptomatic ALS male mice models, and an increase in its targets: axon destabilizing Type 3 Semaphorins and their coreceptor Neuropilins. Using compartmentalized


Metabolic Patterning On A Chip: Towards In Vitro Liver Zonation Of Primary Rat And Human Hepatocytes, Young Bok (Abraham) Kang, Jinsu Eo, Safak Mert, Martin L. Yarmush, O. Berk Usta Jun 2018

Metabolic Patterning On A Chip: Towards In Vitro Liver Zonation Of Primary Rat And Human Hepatocytes, Young Bok (Abraham) Kang, Jinsu Eo, Safak Mert, Martin L. Yarmush, O. Berk Usta

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

An important number of healthy and diseased tissues shows spatial variations in their metabolic capacities across the tissue. The liver is a prime example of such heterogeneity where the gradual changes in various metabolic activities across the liver sinusoid is termed as “zonation” of the liver. Here, we introduce the Metabolic Patterning on a Chip (MPOC) platform capable of dynamically creating metabolic patterns across the length of a microchamber of liver tissue via actively enforced gradients of various metabolic modulators such as hormones and inducers. Using this platform, we were able to create continuous liver tissues of both rat and …


Defining The Radioresponse Of Mossy Cells, Devon Ivy Jun 2018

Defining The Radioresponse Of Mossy Cells, Devon Ivy

Electronic Theses, Projects, and Dissertations

Clinical radiotherapy is used to treat a variety of brain tumors within the central nervous system. While effective, it can result in progressive and debilitating cognitive impairment that can diminish quality of life. These impairments have been linked to hippocampal dysfunction and corresponding deficits in spatial learning and memory. Mossy cells are a major population of excitatory neurons located within the dentate hilus and highly involved in hippocampal circuitry. They play critical roles in spatial navigation, neurogenesis, memory, and are particularly vulnerable to a variety of neurotoxic insults. However, their sensitivity to ionizing radiation has yet to be investigated in …


Borrelia Burgdorferi Spovg Dna- And Rna-Binding Protein Modulates The Physiology Of The Lyme Disease Spirochete, Christina R. Savage, Brandon L. Jutras, Aaron Bestor, Kit Tilly, Patricia A. Rosa, Yvonne Tourand, Philip E. Stewart, Catherine A. Brissette, Brian Stevenson Jun 2018

Borrelia Burgdorferi Spovg Dna- And Rna-Binding Protein Modulates The Physiology Of The Lyme Disease Spirochete, Christina R. Savage, Brandon L. Jutras, Aaron Bestor, Kit Tilly, Patricia A. Rosa, Yvonne Tourand, Philip E. Stewart, Catherine A. Brissette, Brian Stevenson

Microbiology, Immunology, and Molecular Genetics Faculty Publications

The SpoVG protein of Borrelia burgdorferi, the Lyme disease spirochete, binds to specific sites of DNA and RNA. The bacterium regulates transcription of spoVG during the natural tick-mammal infectious cycle and in response to some changes in culture conditions. Bacterial levels of spoVG mRNA and SpoVG protein did not necessarily correlate, suggesting that posttranscriptional mechanisms also control protein levels. Consistent with this, SpoVG binds to its own mRNA, adjacent to the ribosome-binding site. SpoVG also binds to two DNA sites in the glpFKD operon and to two RNA sites in glpFKD mRNA; that operon encodes genes necessary for glycerol catabolism …


Microgravity Exerts An Age-Dependent Effect On Cardiovascular Progenitor Cell Development, Jonathan Baio Jun 2018

Microgravity Exerts An Age-Dependent Effect On Cardiovascular Progenitor Cell Development, Jonathan Baio

Loma Linda University Electronic Theses, Dissertations & Projects

The heart and its cellular components are profoundly altered by missions to space and injury on Earth. Increasing evidence has identified that one such alteration induced by spaceflight is the promotion of the efficacious use of stem cells in therapies on Earth. For this reason, neonatal and adult human cardiovascular progenitor cells (CPCs) were cultured aboard the International Space Station (ISS). Subsequently, we assessed the effects of mechanical unloading on developmental properties and signaling. Spaceflight induced the expression of genes that are typically associated with an earlier state of cardiovascular development. In particular, in neonatal CPCs, we measured increased expression …


Molecular Interplay Of Chromatin Remodeling Factor Brg1 And Transcription Factor Stat3 Regulates Stemness, Chemosensitivity And Tumorigenicity Of Glioma Tumor Initiating Cells, Debolina Ganguly Jun 2018

Molecular Interplay Of Chromatin Remodeling Factor Brg1 And Transcription Factor Stat3 Regulates Stemness, Chemosensitivity And Tumorigenicity Of Glioma Tumor Initiating Cells, Debolina Ganguly

Theses and Dissertations (ETD)

Glioblastoma Multiforme (GBM) is an aggressive brain tumor, characterized by high cellular heterogeneity, is refractory to treatment and has dismal prognosis. These characteristics of GBM have suggested the presence of stem-like cells that have the ability to initiate and maintain tumors of a heterogeneous nature, and bestow resistance to current therapeutic regimens. It is therefore imperative to identify the dysregulated molecular pathways which enable the maintenance of these cells in a stem-like state in order to inform strategies to therapeutically target them.

In this study, we investigated the role of the Y705 and S727 phosphorylation domains of STAT3, a multifunctional …