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Articles 31 - 60 of 64
Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
Replication Protein A (Rpa) Targeting Of Uracil Dna Glycosylase (Ung2), Derek Chen, Brian P Weiser
Replication Protein A (Rpa) Targeting Of Uracil Dna Glycosylase (Ung2), Derek Chen, Brian P Weiser
Rowan-Virtua Research Day
Replication Protein A (RPA) is a single stranded DNA binding protein which stabilizes ssDNA for replication and repair. One function of RPA is to bind the DNA repair enzyme uracil DNA glycosylase (UNG2) and direct its activity towards ssDNA dsDNA junctions.
UNG2 removes uracil bases from DNA which can appear through dUMP misincorporation or through cytosine deamination. If uracil is present instead of a cytosine, then the original GC pair becomes a GU pair. The uracil will then base pair to adenine in the replicated daughter strand. This results in a GC → AT mutation that could contribute to cancer …
Substrate-Dependent Modulation Of Sirt2 By A Fluorescent Probe, 1-Aminoanthracene, David Bi, Prashit Parikh, Jie Yang, Brian P Weiser
Substrate-Dependent Modulation Of Sirt2 By A Fluorescent Probe, 1-Aminoanthracene, David Bi, Prashit Parikh, Jie Yang, Brian P Weiser
Rowan-Virtua Research Day
Sirtuin isoform 2 (SIRT2) is an enzyme that catalyzes the removal of acyl groups from lysine residues. SIRT2’s catalytic domain has a hydrophobic tunnel where its substrate acyl groups bind. Here, we report that the fluorescent probe 1-aminoanthracene (AMA) binds within SIRT2’s hydrophobic tunnel in a substrate-dependent manner. AMA’s interaction with SIRT2 was characterized by its enhanced fluorescence upon protein binding (>10-fold). AMA interacted weakly with SIRT2 alone in solution (Kd = 37 μM). However, when SIRT2 was equilibrated with a decanoylated peptide substrate, AMA’s affinity for SIRT2 was enhanced ∼10-fold (Kd = 4μM). The peptide’s decanoyl chain and …
Mitochondrial Distribution Of Glycine Receptors In Motor Neuron Cell Lines, Katsiaryna Milashevich
Mitochondrial Distribution Of Glycine Receptors In Motor Neuron Cell Lines, Katsiaryna Milashevich
Student Theses and Dissertations
Although non-essential, glycine plays an important role in major metabolic reactions and is most known for its anti-inflammatory effects. An accumulation of contemporary research has shown that glycine is able to stabilize membrane potential using glycine receptors at the cellular level and to protect mitochondrial function directly, whether it is from inflammation, heavy metal poisoning, or ischemia-induced neuroinflammation. In this research, the existence of a hypothetical mitochondrial glycine receptor is examined. Immunofluorescence imaging was used to examine the presence of the glycine receptor subunits alpha 1 and alpha 2 in both non- differentiated and differentiated neuroblastoma cell lines. The preliminary …
Component Causes Of Infectious Bovine Keratoconjunctivitis - The Role Of Moraxella Species In The Epidemiology Of Infectious Bovine Keratoconjunctivitis, John Dustin Loy, Matthew Hille, Gabriele Maier, Michael L. Clawson
Component Causes Of Infectious Bovine Keratoconjunctivitis - The Role Of Moraxella Species In The Epidemiology Of Infectious Bovine Keratoconjunctivitis, John Dustin Loy, Matthew Hille, Gabriele Maier, Michael L. Clawson
School of Veterinary and Biomedical Sciences: Faculty Publications
Moraxella bovis can cause infectious bovine keratoconjunctivitis (IBK).
The role of M bovoculi in IBK is not fully understood.
M bovis and M bovoculi appear to undergo genetic recombination with each other or other members of the Moraxellaceae.
Recombination complicates their classification and potential role(s) in IBK pathogenesis.
MALDI-TOF MS is used to identify M bovis, 2 major strains or genotypes of M bovoculi, M ovis, and other members of the Moraxellaceae.
Classification and determination of pathogenesis potential within Moraxella species may be better understood through whole genome sequencing.
Cyclin C Determines Cell Fate In Response To Oxidative Stress And Proteasome Inhibition, David C. Stieg
Cyclin C Determines Cell Fate In Response To Oxidative Stress And Proteasome Inhibition, David C. Stieg
Graduate School of Biomedical Sciences Theses and Dissertations
In response to various sources of cellular stress, the coordination of intracellular events is necessary to elicit the appropriate molecular response. In particular, the reprogramming of gene expression by stress-specific transcription factors drives the activation of signaling pathways, triggering either cell survival or regulated cell death pathways. The Cdk8 kinase module (CKM) is a highly conserved transcriptional regulatory complex with a role in this decision. The CKM is composed of Cdk8, its activating partner cyclin C, and two scaffold proteins, Med12 and Med13. The CKM is a detachable subunit of the Mediator complex, which interacts with RNA polymerase II to …
Biochemical Characterization Of Small Molecule Inhibitor Binding On A Ras Related Gtpase And Its Effector Interactions, Djamali Muhoza
Biochemical Characterization Of Small Molecule Inhibitor Binding On A Ras Related Gtpase And Its Effector Interactions, Djamali Muhoza
Graduate Theses and Dissertations
The Ras superfamily of GTPases has 167 proteins that are involved in various cellular processes such as proliferation, transformation, migration, and inhibition of cell death. Mutations, abnormal expression, and function of these proteins are observed in many diseases, including several forms of cancer. Even though these GTPases were among the first discovered oncogenes, no successful Ras drug candidate has successfully passed clinical trials. Drugs targeting these proteins have failed mainly because of the complexity of their regulation, their high affinity to GTP, and their structure’s dynamic nature. Recently, novel promising targeting approaches have renewed interest in the Ras drug discovery …
Molecular And Genetic Studies Of Robo2 Transcriptional Regulation In The Central Nervous System Of Drosophila Melanogaster, Muna Abdal Rahim Abdal Rhida
Molecular And Genetic Studies Of Robo2 Transcriptional Regulation In The Central Nervous System Of Drosophila Melanogaster, Muna Abdal Rahim Abdal Rhida
Graduate Theses and Dissertations
Drosophila Robo2 axon guidance receptor is a member of the evolutionarily conserved Roundabout (Robo) protein family that is involved in directing axons that cross the midline to the other side of the animal body. Robo2 roles mainly depend on two factors: The functional domains of the Robo2 protein, which is extensively studied, and the dynamic transcription of robo2 in various subsets of cells throughout embryogenesis which is not fully understood. Thus, knowing robo2 enhancers that transcriptionally regulate robo2 during embryogenesis is significant. To investigate robo2 potential enhancers, we screened 17 transgenic lines of Drosophila that were generated by Janelia Research …
The Role Of Nutrition And Hormone Signaling In Extended Larval Development And Obesity In Starvation-Selected Drosophila Melanogaster, Jennifer M. Clark
The Role Of Nutrition And Hormone Signaling In Extended Larval Development And Obesity In Starvation-Selected Drosophila Melanogaster, Jennifer M. Clark
UNLV Theses, Dissertations, Professional Papers, and Capstones
Brief periods of starvation are a common stressor that most animals encounter in the wild and must be able to survive in order to maximize their fitness. Starvation resistance of the adult fruit fly, Drosophila melanogaster, is thought to be primarily conferred by adult fat stores, body size, metabolic rate, behavior, and activity levels. Additionally, flies selected for starvation resistance also often show delayed pupariation, which is usually indicative of altered hormone signaling. How starvation selection extends development and if it contributes to adult starvation resistance remains incompletely studied. Identifying the targets of starvation selection that cause extended development and …
A High-Androgen Microenvironment Inhibits Granulosa Cell Proliferation And Alters Cell Identity, Renee M. Mcfee, Sarah M. Romereim, Alexandria P. Snider, Adam F. Summers, William E. Pohlmeier, Scott G. Kurz, Robert A. Cushman, John S. Davis, Jennifer R. Wood, Andrea S. Cupp
A High-Androgen Microenvironment Inhibits Granulosa Cell Proliferation And Alters Cell Identity, Renee M. Mcfee, Sarah M. Romereim, Alexandria P. Snider, Adam F. Summers, William E. Pohlmeier, Scott G. Kurz, Robert A. Cushman, John S. Davis, Jennifer R. Wood, Andrea S. Cupp
School of Veterinary and Biomedical Sciences: Faculty Publications
A naturally occurring bovine model with excess follicular fluid androstenedione (High A4), reduced fertility, and polycystic ovary syndrome (PCOS)-like characteristics has been identified. We hypothesized High A4 granulosa cells (GCs) would exhibit altered cell proliferation and/or steroidogenesis. Microarrays of Control and High A4 GCs combined with Ingenuity Pathway Analysis indicated that High A4 GCs had cell cycle inhibition and increased expression of microRNAs that inhibit cell cycle genes. Granulosa cell culture confirmed that A4 treatment decreased GC proliferation, increased anti-Müllerian hormone, and increased mRNA for CTNNBIP1. Increased CTNNBIP1 prevents CTNNB1 from interacting with members of the WNT signaling pathway thereby …
Vitamin D3 Induces Mesenchymal-To-Endothelial Transition And Promotes A Proangiogenic Niche Through Igf-1 Signaling, Lei Chen, Anweshan Samanta, Lin Zhao, Nathaniel R. Dudley, Tanner Buehler, Robert J. Vincent, Jeryl Hauptman, Magdy Girgis, Buddhadeb Dawn
Vitamin D3 Induces Mesenchymal-To-Endothelial Transition And Promotes A Proangiogenic Niche Through Igf-1 Signaling, Lei Chen, Anweshan Samanta, Lin Zhao, Nathaniel R. Dudley, Tanner Buehler, Robert J. Vincent, Jeryl Hauptman, Magdy Girgis, Buddhadeb Dawn
School of Medicine Faculty Publications
Biological Sciences; Physiology; Molecular Biology; Cell Biology
Long-Term Impacts Of Acute Stressor Exposure On Locus Coeruleus Function And Anxiety-Like Behavior In Rats, Olga Borodovitsyna
Long-Term Impacts Of Acute Stressor Exposure On Locus Coeruleus Function And Anxiety-Like Behavior In Rats, Olga Borodovitsyna
Graduate School of Biomedical Sciences Theses and Dissertations
Stress is a physiological state characterized by behavioral arousal that occurs during exposure to harmful or threatening stimuli, and usually facilitates an adaptive behavioral response. The persistence of stress sometimes causes it to become maladaptive, potentially contributing to disease development, including physiological complications with altered neuroendocrine signaling and impaired function of organ systems, and psychological conditions including depression and anxiety. Anxiety disorders in particular are associated with a history of stress and are the most common class of mental disorders, with a lifetime prevalence of 33.7% in the general population. The locus coeruleus (LC) is a major node in the …
A High-Throughput Approach To Characterizing Arv1 On The Regulation Of Lipid Homeostasis Uncovers A Novel Interaction With Epidermal Growth Factor Receptor, Nicholas Anthony Wachowski
A High-Throughput Approach To Characterizing Arv1 On The Regulation Of Lipid Homeostasis Uncovers A Novel Interaction With Epidermal Growth Factor Receptor, Nicholas Anthony Wachowski
Graduate School of Biomedical Sciences Theses and Dissertations
Acyl-CoA cholesterol acyl transferase related enzyme-2 required for viability 1 (ARV1) was first recognized in Saccharomyces cerevisiae in a study done in 2000 by Tinkelenberg et al. In yeast, the deletion of ARV1 results in numerous defects including abnormal sterol trafficking [1], the reduction of sphingolipid metabolism [2], synthesis of glycosylphosphatidylinositol (GPI) anchor [3], ER stress [4], and hypersensitivity of fatty acids leading to lipoapoptosis [5]. Arv1 germline deletion in mice displayed a lean phenotype with increased energy [6]. In humans, ARV1 mutations lead to epileptic encephalopathy [7].
Non-alcoholic fatty liver disease (NAFLD) consists of simple steatosis to non-alcoholic steatohepatitis …
Purification And Functional Characterization Of The Iron-Responsive Transcription Factor Aft1 From C. Glabrata, Jade Ikahihifo-Bender
Purification And Functional Characterization Of The Iron-Responsive Transcription Factor Aft1 From C. Glabrata, Jade Ikahihifo-Bender
Senior Theses
Due to its unique ability to serve as both an electron donor and acceptor, iron is utilized as a co-factor for many biological processes, including electron transfer, oxygen binding, and vitamin synthesis. Iron is also a key factor during fungal infections as the human host and invading pathogens battle over limited iron pools. The primary iron-responsive transcription factor Aft1 in the opportunistic pathogenic yeast Candida glabrata responds to iron deficiency by activating expression of iron acquisition genes. However, the mechanisms for sensing intracellular iron levels and regulating Aft1 activity in response to iron are unknown. The C. glabrata iron regulation …
Living With It: A Patient’S And A Biochemist’S Perspective On Kidney Disease; A Historical Review Of Alport Syndrome, Jacob Olson
Living With It: A Patient’S And A Biochemist’S Perspective On Kidney Disease; A Historical Review Of Alport Syndrome, Jacob Olson
WWU Honors College Senior Projects
A review paper on the origin of health studies around Alport Syndrome, including aspects of genetics, pharmacy, and biochemistry, from the past to today and beyond. This report deals with important aspects of health development with regards to kidney disease overall, but narrows its focus on Alport Syndrome specifically due to the personal nature of the topic for the author. While this paper includes no personal testimony, as it is strictly meant to be formal, the author shares a deep connection with the material.
Biological Activity And Solubility Of 5-Methoxy-1,4-Benzoquinone Having Bromoheptyl And Bromodecyl Substituents In The N-Octanol/Water System, Siti Mariyah Ulfa, Fath Dwisari, Laras Pangesti, Mohammad Farid Rahman
Biological Activity And Solubility Of 5-Methoxy-1,4-Benzoquinone Having Bromoheptyl And Bromodecyl Substituents In The N-Octanol/Water System, Siti Mariyah Ulfa, Fath Dwisari, Laras Pangesti, Mohammad Farid Rahman
Makara Journal of Science
The biological activity and solubility of compounds are influenced by its chemical structure. These properties can be improved by substituting alkyl, alkoxy, and/or haloalkane in the parent skeleton. In this research, the synthesis of 3-(7-bromoheptyl)-2-methyl-5-methoxy-1,4-benzoquinone (3a) and 3-(10-bromodecyl)-2-methyl-5-methoxy-1,4-benzoquinone (3b) was achieved through the decarboxylation reaction. The solubility and biological activity of 3a and 3b were compared with that of thymoquinone (TQ), which acts as an anti-inflammatory agent. Compounds 3a and 3b were successfully synthesized and analyzed using Fourier Transform Infra-Red (FTIR) and Nuclear Magnetic Resonance (NMR). The FTIR spectrum showed the increasing intensity of …
Combining Multicolor Fish With Fluorescence Lifetime Imaging For Chromosomal Identification And Chromosomal Sub Structure Investigation, Archana Bhartiya, Ian Robinson, Mohammed Yousuf, Stanley W. Botchway
Combining Multicolor Fish With Fluorescence Lifetime Imaging For Chromosomal Identification And Chromosomal Sub Structure Investigation, Archana Bhartiya, Ian Robinson, Mohammed Yousuf, Stanley W. Botchway
Centre for Regenerative Medicine & Stem Cell Research
Understanding the structure of chromatin in chromosomes during normal and diseased state of cells is still one of the key challenges in structural biology. Using DAPI staining alone together with Fluorescence lifetime imaging (FLIM), the environment of chromatin in chromosomes can be explored. Fluorescence lifetime can be used to probe the environment of a fluorophore such as energy transfer, pH and viscosity. Multicolor FISH (M-FISH) is a technique that allows individual chromosome identification, classification as well as assessment of the entire genome. Here we describe a combined approach using DAPI as a DNA environment sensor together with FLIM and M-FISH …
Maldi-Tof Ms Biomarker Detection Models To Distinguish Rtx Toxin Phenotypes Of Moraxella Bovoculi Strains Are Enhanced Using Calcium Chloride Supplemented Agar, Matthew M. Hille, Michael L. Clawson, Aaron M. Dickey, Justin H. Lowery, John Dustin Loy
Maldi-Tof Ms Biomarker Detection Models To Distinguish Rtx Toxin Phenotypes Of Moraxella Bovoculi Strains Are Enhanced Using Calcium Chloride Supplemented Agar, Matthew M. Hille, Michael L. Clawson, Aaron M. Dickey, Justin H. Lowery, John Dustin Loy
School of Veterinary and Biomedical Sciences: Faculty Publications
Moraxella bovoculi is the bacterium most often cultured from ocular lesions of cattle with infectious bovine keratoconjunctivitis, also known as bovine pinkeye. Some strains of M. bovoculi contain operons encoding for a repeats-in-toxin (RTX) toxin, which is a known virulence factor of multiple veterinary pathogens. We explored the utility of MALDI-TOF MS and biomarker detection models to classify the presence or absence of an RTX phenotype in M. bovoculi. Ninety strains that had undergone whole genome sequencing were classified by the presence or absence of complete RTX operons and confirmed with a visual assessment of hemolysis on blood agar. Strains …
The Effect Of Alcalase Concentration On The Proteins From The Shells Of Litopenaeus Setiferus (White Shrimp), Liam T. Quan
The Effect Of Alcalase Concentration On The Proteins From The Shells Of Litopenaeus Setiferus (White Shrimp), Liam T. Quan
Journal of the South Carolina Academy of Science
Chitin is a naturally abundant polymer that also happens to be biodegradable. Chitin can be used in a variety of different products such as biodegradable plastics, papers, medical products, foods, and medical treatments. To extract chitin, shells must be demineralized and deproteinized. The goal of this experiment was to examine the effect of the protease Alcalase in the deproteinization of litopenaeus setiferus shells. The hypothesis was that if the concentration of Alcalase increased, then the absorbance of proteins in the spectrophotometer reading would increase. The null hypothesis was that if the concentration increased there would be no change in absorption. …
Homeostatic T Cell Receptor Interactions With Self-Peptide Tune Cd4+ T Cell Function, Juliet Marie Bartleson
Homeostatic T Cell Receptor Interactions With Self-Peptide Tune Cd4+ T Cell Function, Juliet Marie Bartleson
Arts & Sciences Electronic Theses and Dissertations
Homeostatic T Cell Receptor Interactions with Self-Peptide Tune CD4+ T Cell Function
by
Juliet Marie Bartleson
Doctor of Philosophy in Biology and Biomedical Sciences
Immunology
Washington University in St. Louis, 2021
Professor Paul M. Allen, Chair
Mature CD4+ T cells circulate throughout peripheral secondary lymphoid organs using their T cell receptor (TCR) to surveil peptide presented on major histocompatibility complex class II molecules (pMHC) in search of cognate, antigenic peptide. In the absence of an immune challenge, however, the TCR is continuously interacting with self-pMHC, which induces a relatively weak TCR signal known as tonic signaling. These homeostatic TCR:self-pMHC interactions …
Arginase 1 Insufficiency Precipitates Amyloid-Β Deposition And Hastens Behavioral Impairment In A Mouse Model Of Amyloidosis, Chao Ma, Jerry B. Hunt, Maj-Linda B. Selenica, Awa Sanneh, Leslie A. Sandusky-Beltran, Mallory Watler, Rana Daas, Andrii Kovalenko, Huimin Liang, Devon Placides, Chuanhai Cao, Xiaoyang Lin, Michael B. Orr, Bei Zhang, John C. Gensel, David J. Feola, Marcia N. Gordon, Dave Morgan, Paula C. Bickford, Daniel C. Lee
Arginase 1 Insufficiency Precipitates Amyloid-Β Deposition And Hastens Behavioral Impairment In A Mouse Model Of Amyloidosis, Chao Ma, Jerry B. Hunt, Maj-Linda B. Selenica, Awa Sanneh, Leslie A. Sandusky-Beltran, Mallory Watler, Rana Daas, Andrii Kovalenko, Huimin Liang, Devon Placides, Chuanhai Cao, Xiaoyang Lin, Michael B. Orr, Bei Zhang, John C. Gensel, David J. Feola, Marcia N. Gordon, Dave Morgan, Paula C. Bickford, Daniel C. Lee
Sanders-Brown Center on Aging Faculty Publications
Alzheimer’s disease (AD) includes several hallmarks comprised of amyloid-β (Aβ) deposition, tau neuropathology, inflammation, and memory impairment. Brain metabolism becomes uncoupled due to aging and other AD risk factors, which ultimately lead to impaired protein clearance and aggregation. Increasing evidence indicates a role of arginine metabolism in AD, where arginases are key enzymes in neurons and glia capable of depleting arginine and producing ornithine and polyamines. However, currently, it remains unknown if the reduction of arginase 1 (Arg1) in myeloid cell impacts amyloidosis. Herein, we produced haploinsufficiency of Arg1 by the hemizygous deletion in myeloid cells using Arg1 …
Of Pigs And Men: The Best-Laid Plans For Prevention And Control Of Swine Fevers, Jishu Shi, Lihua Wang, David Scott Mcvey
Of Pigs And Men: The Best-Laid Plans For Prevention And Control Of Swine Fevers, Jishu Shi, Lihua Wang, David Scott Mcvey
School of Veterinary and Biomedical Sciences: Faculty Publications
John Steinbeck drew the title of his novel “Of Mice and Men” from a line in a Robert Burns poem “To a mouse”: “The best-laid plans of mice and men/Go often awry.” Unlike John Steinbeck who used the title to mirror the characters who were struggling during the Great Depression to the mouse whose nest was accidentally destroyed by the poet (Burns 1785), we chose this line to emphasize that the best-laid plan can go wrong in infectious disease control and prevention. Here, we will discuss the contributing factors behind the global successes and failures in the prevention and control …
Covid19 Disease Map, A Computational Knowledge Repository Of Virus–Host Interaction Mechanisms, Marek Ostaszewski, Tomáš Helikar, Bhanwar Lal Puniya, A Host Of Co-Authors, Covid-19 Disease Map Community
Covid19 Disease Map, A Computational Knowledge Repository Of Virus–Host Interaction Mechanisms, Marek Ostaszewski, Tomáš Helikar, Bhanwar Lal Puniya, A Host Of Co-Authors, Covid-19 Disease Map Community
Department of Biochemistry: Faculty Publications
We need to effectively combine the knowledge from surging literature with complex datasets to propose mechanistic models of SARS-CoV-2 infection, improving data interpretation and predicting key targets of intervention. Here, we describe a large-scale community effort to build an open access, interoperable and computable repository of COVID-19 molecular mechanisms. The COVID-19 Disease Map (C19DMap) is a graphical, interactive representation of disease-relevant molecular mechanisms linking many knowledge sources. Notably, it is a computational resource for graph-based analyses and disease modelling. To this end, we established a framework of tools, platforms and guidelines necessary for a multifaceted community of biocurators, domain experts, …
Open Neuroscience Initiative, Austin Lim
Open Neuroscience Initiative, Austin Lim
College of Science and Health Full Text Publications
The Open Neuroscience Initiative is a free-to-use textbook
This project began as a means to overcoming the financial burden that face undergraduate neuroscience students when buying textbooks. By compiling and writing a completely free-to-access textbook that covers the foundations of a typical college introduction to neuroscience course, students would have one less obstacle to overcome in their educational career, allowing them to focus their valuable time and attention on learning rather than finances. To make this project a reality, I began with a humble tweet in May 2019 that managed to gain a tiny bit of traction among the neuroscience …
Potential Counter Regulatory Effects Of A Gut Microbiota Metabolite In Alleviating Down-Regulation Krüppel-Like Factor 4 In Intestinal Inflammation, Ylva Forslund
Theses, Dissertations and Capstones
Inflammatory bowel disease (IBD) is a medical condition characterized by chronic inflammation of the intestinal epithelium. Krüppel-like factor 4 (KLF4), a zinc finger transcription factor, is vital for maintaining intestinal epithelial homeostasis. KLF4 promotes differentiation of goblet cells that generate the protective mucus layer. Reduced goblet cell number and defective mucus layer are associated with IBD. Shortchain fatty acids (SCFA) are known to play an important role in the maintenance of a strong and healthy intestinal epithelial layer and also in goblet cell differentiation. However, whether the positive effects of SCFAs on goblet cells are mediated, at least partly, via …
Il-10 As A Th2 Cytokine: Differences Between Mice And Humans, Mahima T. Rasquinha, Meghna Sur, Ninaad Lasrado, Jay Reddy
Il-10 As A Th2 Cytokine: Differences Between Mice And Humans, Mahima T. Rasquinha, Meghna Sur, Ninaad Lasrado, Jay Reddy
School of Veterinary and Biomedical Sciences: Faculty Publications
The discovery of interleukin (IL)-10 more than 30 years ago marked the beginning of our understanding of how cytokines regulate immune responses, based on cross-regulation between T helper (Th)1 and Th2 cytokines. Although multiple cell types were shown to produce IL-10, its identity as a Th2 cytokine remained strong since it was rigidly associated with Th2 clones in mice, whereas both Th1 and Th2 clones could secrete IL-10 in humans. However, as new Th1/Th2 cell functionalities emerged, anti-inflammatory action of IL-10 gained more attention than its inhibitory effect on Th1 cells, which may occur as an indirect consequence of suppression …
Impact Of The Histidine‐Containing Phosphocarrier Protein Hpr On Carbon Metabolism And Virulence In Staphylococcus Aureus, Linda Pätzold, Anne-Christine Brausch, Evelyn-Laura Bielefeld, Lisa Zimmer, Greg A. Somerville, Markus Bischoff, Rosmarie Gaupp
Impact Of The Histidine‐Containing Phosphocarrier Protein Hpr On Carbon Metabolism And Virulence In Staphylococcus Aureus, Linda Pätzold, Anne-Christine Brausch, Evelyn-Laura Bielefeld, Lisa Zimmer, Greg A. Somerville, Markus Bischoff, Rosmarie Gaupp
School of Veterinary and Biomedical Sciences: Faculty Publications
Carbon catabolite repression (CCR) is a common mechanism pathogenic bacteria use to link central metabolism with virulence factor synthesis. In gram‐positive bacteria, catabolite control protein A (CcpA) and the histidine‐containing phosphocarrier protein HPr (encoded by ptsH) are the predominant mediators of CCR. In addition to modulating CcpA activity, HPr is essential for glucose import via the phosphotransferase system. While the regulatory functions of CcpA in Staphylococcus aureus are largely known, little is known about the function of HPr in CCR and infectivity. To address this knowledge gap, ptsH mutants were created in S. aureus that either lack the open reading …
An Evaluation Of The Anti-Carcinogenic Response Of Major Isothiocyanates In Non-Metastatic And Metastatic Melanoma Cells, Melina Mitsiogianni, Sotiris Kyriakou, Ioannis Anestopoulos, Dimitrios T. Trafalis, Maria V. Deligiorgi, Rodrigo Franco, Aglaia Pappa, Mihalis I. Panayiotidi
An Evaluation Of The Anti-Carcinogenic Response Of Major Isothiocyanates In Non-Metastatic And Metastatic Melanoma Cells, Melina Mitsiogianni, Sotiris Kyriakou, Ioannis Anestopoulos, Dimitrios T. Trafalis, Maria V. Deligiorgi, Rodrigo Franco, Aglaia Pappa, Mihalis I. Panayiotidi
School of Veterinary and Biomedical Sciences: Faculty Publications
Malignant melanoma is one of the most deadly types of solid cancers, a property mainly attributed to its highly aggressive metastatic form. On the other hand, different classes of isothiocy- anates, a class of phytochemicals, present in cruciferous vegetables have been characterized by considerable anti-cancer activity in both in vitro and in vivo experimental models. In the current study, we investigated the anti-cancer response of five isothiocyanates in an in vitro model of melanoma consisting of non-metastatic (A375, B16F-10) and metastatic (VMM1, Hs294T) malignant melanoma as well as non-melanoma epidermoid carcinoma (A431) and non-tumorigenic melanocyte-neighboring keratinocyte (HaCaT) cells. Our aim …
Inhibition Of Zika Virus Replication By G-Quadruplex-Binding Ligands, Prativa Majee, Aryamav Pattnaik, Bikash R. Sahoo, Uma Shankar, Asit K. Pattnaik, Amit Kumar, Debasis Nayak
Inhibition Of Zika Virus Replication By G-Quadruplex-Binding Ligands, Prativa Majee, Aryamav Pattnaik, Bikash R. Sahoo, Uma Shankar, Asit K. Pattnaik, Amit Kumar, Debasis Nayak
School of Veterinary and Biomedical Sciences: Faculty Publications
Zika virus (ZIKV), a mosquito-transmitted Flavivirus, emerged in the last decade causing serious diseases and affecting human health globally. Currently, no licensed vaccines or antivirals are available to combat ZIKV, although several vaccine candidates are in the pipeline. In recent years, the presence of non-canon- ical G-quadruplex (GQ) secondary structures in viral genomes has ignited significant attention as potential targets for anti- viral strategy. In this study, we identified several novel conserved potential GQ structures by analyzing published ZIKV genome sequences using an in-house algorithm. Bio- physical and biochemical analysis of the RNA sequences con- taining these potential GQ sequences …
Female And Male-Controlled Livestock Holdings Impact Pastoralist Food Security And Women’S Dietary Diversity, Henriette Gitungwa, Christopher Gustafson, E.Y. Jimenez, E. Wesley F. Peterson, M. Mwanzalila, Asha Makweta, E. Komba, R.R. Kazwala, J.A.K. Mazet, Elizabeth Vanwormer
Female And Male-Controlled Livestock Holdings Impact Pastoralist Food Security And Women’S Dietary Diversity, Henriette Gitungwa, Christopher Gustafson, E.Y. Jimenez, E. Wesley F. Peterson, M. Mwanzalila, Asha Makweta, E. Komba, R.R. Kazwala, J.A.K. Mazet, Elizabeth Vanwormer
School of Veterinary and Biomedical Sciences: Faculty Publications
Background: Food insecurity is a global problem that requires a One Health approach. As many households in low- and middle-income nations rely on crops and livestock that they produce to meet their household’s needs, food security and nutrition are closely linked to the health of animals and the environment. Resources controlled by women are more often allocated to uses that benefit the entire household, such as food, health, and educating children, than men’s resources. However, studies of gender control of resources among pastoralist societies are scant. We examined the effect of female and male control of livestock resources on food …
Special Issue: Shiga Toxin-Producing Escherichia Coli, Rodney A. Moxley
Special Issue: Shiga Toxin-Producing Escherichia Coli, Rodney A. Moxley
School of Veterinary and Biomedical Sciences: Faculty Publications
Globally, Shiga toxin-producing Escherichia coli (STEC) is an important cause of diarrheal disease, most notably hemorrhagic colitis, and post-diarrheal sequela, such as hemolytic-uremic syndrome (HUS) [1]. Cattle are a major reservoir of STEC, with approx- imately half of the cases in humans attributable to foodborne exposure [2]. Prevention of human illness has mainly been through food safety measures [2]. Despite extensive research, no other generally accepted and effective preventive measures or therapies for STEC infections in human patients are available [3]. Many questions remain about STEC virulence factors, pathogenesis, detection, and other aspects that necessitate a continua- tion of basic …