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Articles 2101 - 2130 of 3279
Full-Text Articles in Cell and Developmental Biology
Mir494 Reduces Renal Cancer Cell Survival Coinciding With Increased Lipid Droplets And Mitochondrial Changes, Punashi Dutta, Edward Haller, Arielle Sharp, Meera Nanjundan
Mir494 Reduces Renal Cancer Cell Survival Coinciding With Increased Lipid Droplets And Mitochondrial Changes, Punashi Dutta, Edward Haller, Arielle Sharp, Meera Nanjundan
Molecular Biosciences Faculty Publications
Background: miRNAs can regulate cellular survival in various cancer cell types. Recent evidence implicates the formation of lipid droplets as a hallmark event during apoptotic cell death response. It is presently unknown whether MIR494, located at 14q32 which is deleted in renal cancers, reduces cell survival in renal cancer cells and if this process is accompanied by changes in the number of lipid droplets.
Methods: 769-P renal carcinoma cells were utilized for this study. Control or MIR494 mimic was expressed in these cells following which cell viability (via crystal violet) and apoptotic cell numbers (via Annexin V/PI staining) were …
Hyaluronidase And Hyaluronan Oligosaccharides Promote Neurological Recovery After Intraventricular Hemorrhage, Govindaiah Vinukonda, Preeti Dohare, Arslan Arshad, Muhammad T. Zia, Sanjeet Panda, Ritesh Korumilli, Praveen Ballabh
Hyaluronidase And Hyaluronan Oligosaccharides Promote Neurological Recovery After Intraventricular Hemorrhage, Govindaiah Vinukonda, Preeti Dohare, Arslan Arshad, Muhammad T. Zia, Sanjeet Panda, Ritesh Korumilli, Praveen Ballabh
NYMC Faculty Publications
Intraventricular hemorrhage (IVH) in premature infants results in inflammation, arrested oligodendrocyte progenitor cell (OPC) maturation, and reduced myelination of the white matter. Hyaluronan (HA) inhibits OPC maturation and complexes with the heavy chain (HC) of glycoprotein inter-α-inhibitor to form pathological HA (HC-HA complex), which exacerbates inflammation. Therefore, we hypothesized that IVH would result in accumulation of HA, and that either degradation of HA by hyaluronidase treatment or elimination of HCs from pathological HA by HA oligosaccharide administration would restore OPC maturation, myelination, and neurological function in survivors with IVH. To test these hypotheses, we used the preterm rabbit model of …
Direct Analysis In Real Time (Dart) Of An Organothiophosphate At Ultrahigh Resolution By Fourier Transform Ion Cyclotron Resonance Mass Spectrometry And Tandem Mass Spectrometry, Laszlo Prokai, Stanley M. Stevens Jr.
Direct Analysis In Real Time (Dart) Of An Organothiophosphate At Ultrahigh Resolution By Fourier Transform Ion Cyclotron Resonance Mass Spectrometry And Tandem Mass Spectrometry, Laszlo Prokai, Stanley M. Stevens Jr.
Molecular Biosciences Faculty Publications
Direct analysis in real time (DART) is a recently developed ambient ionization technique for mass spectrometry to enable rapid and sensitive analyses with little or no sample preparation. After swab-based field sampling, the organothiophosphate malathion was analyzed using DART-Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) and tandem mass spectrometry (MS/MS). Mass resolution was documented to be over 800,000 in full-scan MS mode and over 1,000,000 for an MS/MS product ion produced by collision-induced dissociation of the protonated analyte. Mass measurement accuracy below 1 ppm was obtained for all DART-generated ions that belonged to the test compound in the …
Better Cognitive Control Of Emotional Information Is Associated With Reduced Pro-Inflammatory Cytokine Reactivity To Emotional Stress, Grant S. Shields, Shari Young Kuchenbecker, Sarah D. Pressman, Ken D. Sumida, George M. Slavich
Better Cognitive Control Of Emotional Information Is Associated With Reduced Pro-Inflammatory Cytokine Reactivity To Emotional Stress, Grant S. Shields, Shari Young Kuchenbecker, Sarah D. Pressman, Ken D. Sumida, George M. Slavich
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Stress is strongly associated with several mental and physical health problems that involve inflammation, including asthma, cardiovascular disease, certain types of cancer, and depression. It has been hypothesized that better cognitive control of emotional information may lead to reduced inflammatory reactivity to stress and thus better health, but to date no studies have examined whether differences in cognitive control predict pro-inflammatory cytokine responses to stress. To address this issue, we conducted a laboratory-based experimental study in which we randomly assigned healthy young-adult females to either an acute emotional stress (emotionally evocative video) or no-stress (control video) condition. Salivary levels of …
Phlpp Negatively Regulates Cell Motility Through Inhibition Of Akt Activity And Integrin Expression In Pancreatic Cancer Cells, Alena J. Smith, Yang-An Wen, Payton D. Stevens, Jingpeng Liu, Chi Wang, Tianyan Gao
Phlpp Negatively Regulates Cell Motility Through Inhibition Of Akt Activity And Integrin Expression In Pancreatic Cancer Cells, Alena J. Smith, Yang-An Wen, Payton D. Stevens, Jingpeng Liu, Chi Wang, Tianyan Gao
Markey Cancer Center Faculty Publications
Pancreatic adenocarcinoma is currently the fourth leading cause for cancer-related mortality. Malignant progression of pancreatic cancer depends not only on rapid proliferation of tumor cells but also on increased cell motility. In this study, we showed that increased PHLPP expression significantly reduced the rate of migration in pancreatic ductal adenocarcinoma (PDAC) cells whereas knockdown of PHLPP had the opposite effect. In addition, cell motility at the individual cell level was negatively regulated by PHLPP as determined using time-lapse imaging. Interestingly, the expression of β1 and β4 integrin proteins were decreased in PHLPP overexpressing cells and increased in PHLPP knockdown cells …
Characterization Of Fluorescent Proteins For Three- And Four-Color Live-Cell Imaging In S. Cerevisiae, Ryo Higuchi-Sanabria, Enrique J. Garcia, Delia Tomoiaga, Emilia L. Munteanu, Paul Feinstein, Liza A. Pon
Characterization Of Fluorescent Proteins For Three- And Four-Color Live-Cell Imaging In S. Cerevisiae, Ryo Higuchi-Sanabria, Enrique J. Garcia, Delia Tomoiaga, Emilia L. Munteanu, Paul Feinstein, Liza A. Pon
Publications and Research
Saccharomyces cerevisiae are widely used for imaging fluorescently tagged protein fusions. Fluorescent proteins can easily be inserted into yeast genes at their chromosomal locus, by homologous recombination, for expression of tagged proteins at endogenous levels. This is especially useful for incorporation of multiple fluorescent protein fusions into a single strain, which can be challenging in organisms where genetic manipulation is more complex. However, the availability of optimal fluorescent protein combinations for 3-color imaging is limited. Here, we have characterized a combination of fluorescent proteins, mTFP1/mCitrine/ mCherry for multicolor live cell imaging in S. cerevisiae. This combination can be used with …
Uncovering New Roles For The Aryl Hydrocarbon Receptor (Ahr) In Breast Cancer, Justin Kirk Tomblin
Uncovering New Roles For The Aryl Hydrocarbon Receptor (Ahr) In Breast Cancer, Justin Kirk Tomblin
Theses, Dissertations and Capstones
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that is responsive to many exogenous and endogenous ligands. AHR is of particular interest in cancer, and has been shown to play roles in tumor progression. As such, it has received growing attention as a possible chemotherapeutic target. Obesity increases the risk of breast cancer, complicates treatment of breast cancer, and stimulates the growth of larger, more aggressive mammary tumors. Many breast tumors in obese women are estrogen receptor (ER)-positive and, while targeting hormone receptors like ER is beneficial, many obese women see a recurrence of their cancer after standard …
Akap150 Dynamics In Anterior Pituitary Cells, Kristen E. Dew
Akap150 Dynamics In Anterior Pituitary Cells, Kristen E. Dew
Electronic Theses and Dissertations
Cellular communication occurs as a result of changes in signaling pathways. A well-studied signaling pathway is through G protein coupled receptors (GPCRs). In gonadotropes, GPCR stimulation by GnRH leads to the activation of protein kinase A (PKA). Activated PKA can phosphorylate ion channels, potentially causing an influx of calcium, depolarization and secretion of hormones. A scaffolding protein known as AKAP150 anchors PKA near L-type calcium channels. In addition, AKAP150 anchors phosphatases, which provides temporal control during signaling events. It was recently shown that AKAP150 is mobile in neuronal dendrites, providing regulation to where the signaling cascade occurs in the cell. …
Hexokinase Ii Localization Is Independent Of Ampk Activation In Hela Cells, Alyssa Brown
Hexokinase Ii Localization Is Independent Of Ampk Activation In Hela Cells, Alyssa Brown
Graduate School of Biomedical Sciences Theses and Dissertations
In order for a cancer cell to thrive, it must alter its metabolism to produce the energy needed for rapid growth. Cells accomplish this by the Warburg Effect, or switching metabolism to aerobic glycolysis, where a cell can rapidly break down sugar into ATP, lactic acid and additional byproducts. Hexokinase 2, the enzyme that catalyzes the first committed step of glycolysis, may also be upregulated in cancer cells to increase glucose breakdown. Similar proteins for metabolism are found in both S. cerevisiae and mammalian cells. S. cerevisiae regulates metabolism through glucose repression, by Snf1 (mammalian homolog: AMPK) activation, which aids …
Utility And Origin Of Blood-Based Autoantibodies For Early Detection And Diagnosis Of Neurodegenerative Diseases, Cassandra Demarshall
Utility And Origin Of Blood-Based Autoantibodies For Early Detection And Diagnosis Of Neurodegenerative Diseases, Cassandra Demarshall
Graduate School of Biomedical Sciences Theses and Dissertations
Autoantibodies are self-reactive antibodies that have been widely implicated as causal agents of autoimmune diseases. They are found in the blood of all human sera, regardless of age, gender, or the presence or absence of disease. While the underlying reason for their ubiquity remains unknown, it has been hypothesized that they participate in the clearance of blood-borne cell and tissue debris generated in both healthy and diseased individuals on a daily basis. Although much evidence supports this debris clearance role, recent studies also suggest a causal role for autoantibodies in disease. My thesis work has focused on this "cause and/or …
Functional Analysis Of Rpl22: Coordinating Differentiation Signals And Developmental Gene Translation To Promote Cell Fate Decisions, Stephen Kim
Graduate School of Biomedical Sciences Theses and Dissertations
The execution of meiosis and spore formation in S. cerevisiae requires a transient transcription program that is initiated by Ime I-dependent destruction of the repressor Ume6. IMEJ transcription is tightly contro1led by both cell type and nutritional cues but how its translation is regulated has been unknown. This study demonstrates that Rpl22A and Rpl22B, eukaryotic-specific ribosomal protein paralogs of the 60S large subunit, are required for efficient Ime I translation. While IME1 mRNA is induced normally in the absence of both para logs following transfer to sporulation medium, Ume6 remains stabilized, downstream early meiotic gene remain repressed, and development is …
The Role Of Cyclic Nucleotide Gated Channels, Retrograde Ift Rate Change, And Chemical Concentration In The Olfactory Habituation Of C. Elegans, Michaela A. O'Driscoll
The Role Of Cyclic Nucleotide Gated Channels, Retrograde Ift Rate Change, And Chemical Concentration In The Olfactory Habituation Of C. Elegans, Michaela A. O'Driscoll
Honors Program Theses
The cilium is an organelle utilized by the cell for signaling purposes. Olfaction is a process that utilizes cilia for cell signaling, specifically as the starting point of the neuronal olfactory pathway, by which volatile odorant molecules trigger neuronal depolarization and subsequent behavioral modification. Related to cilia function and development is the process of intraflagellar transport (IFT): the bidirectional movement of channels, receptors, and other proteins by motors along the microtubules of the cilia, including odorant receptors. The phenomenon of odorant habituation upon continuous exposure to an attractant chemical has been previously confirmed, but the role of IFT in this …
Low-Ω3 Fatty Acid And Soy Protein Attenuate Alcohol-Induced Fatty Liver And Injury By Regulating The Opposing Lipid Oxidation And Lipogenic Signaling Pathways., Karina Reyes-Gordillo, Ruchi Shah, Ravi Varatharajalu, Mamatha Garige, Leslie C. Leckey, M. Raj Lakshman
Low-Ω3 Fatty Acid And Soy Protein Attenuate Alcohol-Induced Fatty Liver And Injury By Regulating The Opposing Lipid Oxidation And Lipogenic Signaling Pathways., Karina Reyes-Gordillo, Ruchi Shah, Ravi Varatharajalu, Mamatha Garige, Leslie C. Leckey, M. Raj Lakshman
Biochemistry and Molecular Medicine Faculty Publications
Chronic ethanol-induced downregulation of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) and upregulation of peroxisome proliferator-activated receptor gamma coactivator 1-beta (PGC1β) affect hepatic lipid oxidation and lipogenesis, respectively, leading to fatty liver injury. Low-ω3 fatty acid (Low-ω3FA) that primarily regulates PGC1α and soy protein (SP) that seems to have its major regulatory effect on PGC1β were evaluated for their protective effects against ethanol-induced hepatosteatosis in rats fed with Lieber-deCarli control or ethanol liquid diets with high or low ω3FA fish oil and soy protein. Low-ω3FA and SP opposed the actions of chronic ethanol by reducing serum and liver lipids with …
Studies Towards Broadening The Substrate Profile And Regulation Of Histone Deacetylase 1, Dhanusha Ashanthi Nalawansha
Studies Towards Broadening The Substrate Profile And Regulation Of Histone Deacetylase 1, Dhanusha Ashanthi Nalawansha
Wayne State University Dissertations
Aberrant expression of histone deacetylase 1 (HDAC1) is implicated in multiple diseases, including cancer. As a consequence, HDAC1 has emerged as an important therapeutic target for drug development. HDAC1 regulates key cellular processes, such as cell proliferation, apoptosis, and cell survival, by deacetylating both histone and non-histone substrates. Due to the lack of simple tools to identify physiological substrates of HDAC1, the full spectrum of HDAC1 activities in the cell remains unclear. Here, we employed a substrate trapping strategy to identify cellular substrates of HDAC1. Using this approach, we identified mitosis-related protein Eg5 as a substrate. HDAC1 colocalizes with Eg5 …
Human Anatomy And Physiology Preparatory Course: Part 2 Of 4 (Interactive), Carlos Liachovitzky
Human Anatomy And Physiology Preparatory Course: Part 2 Of 4 (Interactive), Carlos Liachovitzky
Open Educational Resources
The overall purpose of these preparatory course set of learning objectives is to help students familiarize with some terms and some basic concepts they will find later in the Human Anatomy and Physiology I course.
These 40+ learning objectives to prepare for Human Anatomy and Physiology can be downloaded and played in a desktop, or laptop (windows exe file).
The entire course has four parts:
Each learning objective is followed by a set of multiple choice question similar to those found later in a Human Anatomy and Physiology course.
Transcriptomic Analysis Of Staphylococcal Srnas: Insights Into Species-Specific Adaption And The Evolution Of Pathogenesis, William H. Broach, Andy Weiss, Lindsey N. Shaw
Transcriptomic Analysis Of Staphylococcal Srnas: Insights Into Species-Specific Adaption And The Evolution Of Pathogenesis, William H. Broach, Andy Weiss, Lindsey N. Shaw
Molecular Biosciences Faculty Publications
Next-generation sequencing technologies have dramatically increased the rate at which new genomes are sequenced. Accordingly, automated annotation programs have become adept at identifying and annotating protein coding regions, as well as common and conserved RNAs. Additionally, RNAseq techniques have advanced our ability to identify and annotate regulatory RNAs (sRNAs), which remain significantly understudied. Recently, our group catalogued and annotated all previously known and newly identified sRNAs in several Staphylococcus aureus strains. These complete annotation files now serve as tools to compare the sRNA content of S. aureus with other bacterial strains to investigate the conservation of their sRNomes. Accordingly, in …
Potential Role Of Pctaire-2, Pctaire-3 And P-Histone H4 In Amyloid Precursor Protein-Dependent Alzheimer Pathology, Dale Chaput, Lisa Kirouac, Stanley M. Stevens Jr., Jaya Padmanabhan
Potential Role Of Pctaire-2, Pctaire-3 And P-Histone H4 In Amyloid Precursor Protein-Dependent Alzheimer Pathology, Dale Chaput, Lisa Kirouac, Stanley M. Stevens Jr., Jaya Padmanabhan
Molecular Biosciences Faculty Publications
Amyloid Precursor Protein (APP) is regulated in a mitosis-specific manner and plays a role in proliferative signaling in cells. Though APP-derived Aβ generation has a well-established role in neurodegeneration, the mechanistic role of APP in this process is not fully understood. Here, we performed an unbiased, comprehensive analysis of the phosphoproteome signature in APP-null neuroblastoma cells (B103) compared to those expressing APP-695 isoform (B103-695) to determine if APP expression affects protein phosphorylation. Stable isotope labeling by amino acids in cell culture (SILAC) followed by mass spectrometry-based phosphoproteomic analysis with PolyMAC identified a total of 2,478 phosphopeptides in the B103 and …
Antibodies Against A Secreted Product Of Staphylococcus Aureus Trigger Phagocytic Killing, Lena Thomer, Carla Emolo, Vilasack Thammavongsa, Hwan Keun Kim, Molly E. Mcadow, Wenqi Yu, Matthew Kieffer, Olaf Schneewind, Dominique Missiakas
Antibodies Against A Secreted Product Of Staphylococcus Aureus Trigger Phagocytic Killing, Lena Thomer, Carla Emolo, Vilasack Thammavongsa, Hwan Keun Kim, Molly E. Mcadow, Wenqi Yu, Matthew Kieffer, Olaf Schneewind, Dominique Missiakas
Molecular Biosciences Faculty Publications
Host immunity against bacteria typically involves antibodies that recognize the microbial surface and promote phagocytic killing. Methicillin-resistant Staphylococcus aureus (MRSA) is a frequent cause of lethal bloodstream infection; however, vaccines and antibody therapeutics targeting staphylococcal surface molecules have thus far failed to achieve clinical efficacy. S. aureus secretes coagulase (Coa), which activates host prothrombin and generates fibrin fibrils that protect the pathogen against phagocytosis by immune cells. Because of negative selection, the coding sequence for the prothrombin-binding D1-D2 domain is highly variable and does not elicit cross-protective immune responses. The R domain, tandem repeats of a 27-residue peptide that bind …
Chronic Pancreatitis, Pain, And Anxiety In An Alcohol And High Fat Mouse Model, Tiffanie Clinkinbeard
Chronic Pancreatitis, Pain, And Anxiety In An Alcohol And High Fat Mouse Model, Tiffanie Clinkinbeard
Theses and Dissertations--Gerontology
Homeodynamic space (HDS) shrinks as vulnerability increases with aging and repeated damage to the cells. HDS is lost in alcoholic pancreatitis patients due to overconsumption of alcohol, smoking, and high fat diets. Etiologically relevant animal models for study of chronic pancreatitis (CP) are needed. In order to begin filling this gap a central purpose of this dissertation research was to examine relationships between the alcohol and high fat diet (AHF) and pancreatitis with attention to hypersensitivity and anxiety-like behaviors. The AHF diet induced pancreatitis described here etiologically mimics human risk factors of AHF consumption for advancement to alcoholic CP.
In …
Il-15 Mediates Mitochondrial Activity Through A Ppar𝛿-Dependent-Ppar𝛼-Independent Mechanism In Skeletal Muscle Cells, Shantaé M. Thornton, James E. Krolopp, Marcia J. Abbott
Il-15 Mediates Mitochondrial Activity Through A Ppar𝛿-Dependent-Ppar𝛼-Independent Mechanism In Skeletal Muscle Cells, Shantaé M. Thornton, James E. Krolopp, Marcia J. Abbott
Health Sciences and Kinesiology Faculty Articles
Molecular mediators of metabolic processes, to increase energy expenditure, have become a focus for therapies of obesity. The discovery of cytokines secreted from the skeletal muscle (SKM), termed “myokines,” has garnered attention due to their positive effects on metabolic processes. Interleukin-15 (IL-15) is a myokine that has numerous positive metabolic effects and is linked to the PPAR family of mitochondrial regulators. Here, we aimed to determine the importance of PPAR𝛼 and/or PPAR𝛿 as targets of IL-15 signaling. C2C12 SKM cells were differentiated for 6 days and treated every other day with IL-15 (100 ng/mL), a PPAR𝛼 inhibitor (GW-6471), a PPAR𝛿 …
The Impact Of Altered T Cell Receptor—Peptide-Major Histocompatibility Complex Interactions On Antigen Recognition And T Cell Function, Timothy T. Spear
The Impact Of Altered T Cell Receptor—Peptide-Major Histocompatibility Complex Interactions On Antigen Recognition And T Cell Function, Timothy T. Spear
Dissertations
Adoptive cell transfer (ACT) using T cell receptor (TCR) gene-modified T cells is an exciting and rapidly evolving field. Numerous basic science and clinical studies have demonstrated various levels of feasibility, safety, and efficacy using TCR-engineered T cells to treat cancer and viral infections. Genomic instability of targeted diseases, however, requires effective and safe TCRs to cross-recognize mutated antigens while minimizing on- or off-target toxicities. Thus, improvements to T cell-based therapeutics mandate a broader understanding of the principles governing antigen recognition. This dissertation addresses critical biologic questions evaluating which parameters are most important in facilitating antigen recognition, and how alterations …
Towards The Complete Small Rnome Of Acinetobacter Baumannii, Andy Weiss, William H. Broach, Mackenzie C. Lee, Lindsey N. Shaw
Towards The Complete Small Rnome Of Acinetobacter Baumannii, Andy Weiss, William H. Broach, Mackenzie C. Lee, Lindsey N. Shaw
Molecular Biosciences Faculty Publications
In recent years, the Gram-negative bacterium Acinetobacter baumannii has garnered considerable attention for its unprecedented capacity to rapidly develop resistance to antibacterial therapeutics. This is coupled with the seemingly epidemic emergence of new hyper-virulent strains. Although strain-specific differences for A. baumannii isolates have been well described, these studies have primarily focused on proteinaceous factors. At present, only limited publications have investigated the presence and role of small regulatory RNA (sRNA) transcripts. Herein, we perform such an analysis, describing the RNA-seq-based identification of 78 A. baumannii sRNAs in the AB5075 background. Together with six previously identified elements, we include each of …
Peptidoglycan Recycling In Gram-Positive Bacteria Is Crucial For Survival In Stationary Phase, Marina Borisova, Rosmarie Gaupp, Amanda Duckworth, Alexander Schneider, Désirée Dalügge, Maraike Mühleck, Denise Deubel, Sandra Unsleber, Wenqi Yu, Günther Muth, Markus Bischoff, Friedrich Götz, Christoph Mayer
Peptidoglycan Recycling In Gram-Positive Bacteria Is Crucial For Survival In Stationary Phase, Marina Borisova, Rosmarie Gaupp, Amanda Duckworth, Alexander Schneider, Désirée Dalügge, Maraike Mühleck, Denise Deubel, Sandra Unsleber, Wenqi Yu, Günther Muth, Markus Bischoff, Friedrich Götz, Christoph Mayer
Molecular Biosciences Faculty Publications
Peptidoglycan recycling is a metabolic process by which Gram-negative bacteria reutilize up to half of their cell wall within one generation during vegetative growth. Whether peptidoglycan recycling also occurs in Gram-positive bacteria has so far remained unclear. We show here that three Gram-positive model organisms, Staphylococcus aureus, Bacillus subtilis, and Streptomyces coelicolor, all recycle the sugar N-acetylmuramic acid (MurNAc) of their peptidoglycan during growth in rich medium. They possess MurNAc-6-phosphate (MurNAc-6P) etherase (MurQ in E. coli) enzymes, which are responsible for the intracellular conversion of MurNAc-6P to N-acetylglucosamine-6-phosphate and d-lactate. By applying mass spectrometry, we observed accumulation of MurNAc-6P in …
Mir146a-Mediated Targeting Of Fancm During Inflammation Compromises Genome Integrity, Devakumar Sundaravinayagam, Hye R. Kim, Ting T. Wu, Hyun H. Kim, Hyun-Seo Lee, Semo Jun, Jeong-Heon Cha, Younghoon Kee, Ho J. You, Jung-Hee Lee
Mir146a-Mediated Targeting Of Fancm During Inflammation Compromises Genome Integrity, Devakumar Sundaravinayagam, Hye R. Kim, Ting T. Wu, Hyun H. Kim, Hyun-Seo Lee, Semo Jun, Jeong-Heon Cha, Younghoon Kee, Ho J. You, Jung-Hee Lee
Molecular Biosciences Faculty Publications
Inflammation is a potent inducer of tumorigenesis. Increased DNA damage or loss of genome integrity is thought to be one of the mechanisms linking inflammation and cancer development. It has been suggested that NF-κB-induced microRNA-146 (miR146a) may be a mediator of the inflammatory response. Based on our initial observation that miR146a overexpression strongly increases DNA damage, we investigated its potential role as a modulator of DNA repair. Here, we demonstrate that FANCM, a component in the Fanconi Anemia pathway, is a novel target of miR146a. miR146a suppressed FANCM expression by directly binding to the 3’ untranslated region of the gene. …
The Cytotoxic Synergy Of Nanosecond Electric Pulses And Low Temperature Leads To Apoptosis, Claudia Muratori, Andrei G. Pakhomov, Elena C. Gianulis, Sarah D. Jensen, Olga N. Pakhomova
The Cytotoxic Synergy Of Nanosecond Electric Pulses And Low Temperature Leads To Apoptosis, Claudia Muratori, Andrei G. Pakhomov, Elena C. Gianulis, Sarah D. Jensen, Olga N. Pakhomova
Bioelectrics Publications
Electroporation by nanosecond electric pulses (nsEP) is an emerging modality for tumor ablation. Here we show the efficient induction of apoptosis even by a non-toxic nsEP exposure when it is followed by a 30-min chilling on ice. This chilling itself had no impact on the survival of U-937 or HPAF-II cells, but caused more than 75% lethality in nsEP-treated cells (300 ns, 1.8-7 kV/cm, 50-700 pulses). The cell death was largely delayed by 5-23 hr and was accompanied by a 5-fold activation of caspase 3/7 (compared to nsEP without chilling) and more than 60% cleavage of poly-ADP ribose polymerase (compared …
Cytosolic Dna Sensor Upregulation Accompanies Dna Electrotransfer In B16.F10 Melanoma Cells, Katarina Znidar, Masa Bosnjak, Maja Cemazar, Loree C. Heller
Cytosolic Dna Sensor Upregulation Accompanies Dna Electrotransfer In B16.F10 Melanoma Cells, Katarina Znidar, Masa Bosnjak, Maja Cemazar, Loree C. Heller
Bioelectrics Publications
In several preclinical tumor models, antitumor effects occur after intratumoral electroporation, also known as electrotransfer, of plasmid DNA devoid of a therapeutic gene. In mouse melanomas, these effects are preceded by significant elevation of several proinflammatory cytokines. These observations implicate the binding and activation of intracellular DNA-specific pattern recognition receptors or DNA sensors in response to DNA electrotransfer. In tumors, IFN β mRNA and protein levels significantly increased. The mRNAs of several DNA sensors were detected, and DAI, DDX60, and p204 tended to be upregulated. These effects were accompanied with reduced tumor growth and increased tumor necrosis. In B16. F10 …
Expression Of Artemia Lea Proteins In Drosophila Melanogaster Cells Using Multicistronic Vector Constructs, Kazi Nazrul Islam
Expression Of Artemia Lea Proteins In Drosophila Melanogaster Cells Using Multicistronic Vector Constructs, Kazi Nazrul Islam
Masters Theses
In nature several organisms exhibit anhydrobiosis, the outstanding feature to survive in extreme desiccation by entering into a state of dormancy known as diapause. The cyst of the brine shrimp Artemia franciscana shows anhydrobiosis by entering into a diapause phase. Previous studies showed a correlation between anhydrobiosis and expression of highly hydrophilic polypeptides termed late embryogenesis abundant (LEA) proteins. However, the precise molecular mechanisms of LEA proteins are still unknown. The presence of multiple LEA proteins in Artemia suggests that some of them might work together. Here, I aimed to express different combination of two LEA proteins from Artemia franciscana …
The Roles Of Human Cytomegalovirus Tegument Proteins Pul48 And Pul103 During Lytic Infection, Daniel Angel Ortiz
The Roles Of Human Cytomegalovirus Tegument Proteins Pul48 And Pul103 During Lytic Infection, Daniel Angel Ortiz
Wayne State University Dissertations
THE ROLES OF HUMAN CYTOMEGALOVIRUS TEGUMENT PROTEINS pUL48 AND pUL103 DURING LYTIC INFECTION
by
DANIEL A. ORTIZ
December 2015
Advisor: Dr. Philip E. Pellett
Major: Immunology and Microbiology
Degree: Doctor of Philosophy
Human cytomegalovirus (HCMV) is a large double-stranded DNA virus that causes severe disease in newborns and immunocompromised patients. During infection, HCMV is able to reconfigure the host cell machinery to establish a virus producing factory, termed the cytoplasmic virion assembly complex (cVAC). Generating drugs that affect cVAC development or function provides an alternative mode of action for HCMV antivirals that can essentially eliminate virion production. The objective of …
Infection Of Mammalian Hepatocytes By Francisella Tularensis Lvs, Pavel Vasioutovitch
Infection Of Mammalian Hepatocytes By Francisella Tularensis Lvs, Pavel Vasioutovitch
Faculty Publications and Presentations
Francisella tularensis, the causative agent of Tularemia, is a facultative intracellular parasite. The goal of this project is to examine how F. tularensis infects and replicates within mammalian cells, and the impact of such an infection upon the signaling pathways within the host cell. The murine embryonic hepatocyte cell line TIB-73 serves as our model system for infection by F. tularensis live vaccine strain (LVS). The number of bacteria associated with hepatocytes was quantified via adhesion, invasion and intracellular replication assays. We have determined that a large multiplicity of infection (MOI) of F. tularensis LVS is required to infect …
Human Anatomy And Physiology Preparatory Course: Part 3 Of 4 (Interactive), Carlos Liachovitzky
Human Anatomy And Physiology Preparatory Course: Part 3 Of 4 (Interactive), Carlos Liachovitzky
Open Educational Resources
he overall purpose of these preparatory course set of learning objectives is to help students familiarize with some terms and some basic concepts they will find later in the Human Anatomy and Physiology I course.
These 40+ learning objectives to prepare for Human Anatomy and Physiology can be downloaded and played in a desktop, or laptop (windows exe file).
The entire course has four parts:
Each learning objective is followed by a set of multiple choice question similar to those found later in a Human Anatomy and Physiology course.