Non-Invasive Analysis Of The Sputum Transcriptome Discriminates Clinical Phenotypes Of Asthma, 2019 Yale University School of Medicine
Non-Invasive Analysis Of The Sputum Transcriptome Discriminates Clinical Phenotypes Of Asthma, Xiting Yan
Yale Day of Data
Whole transcriptome wide gene expression profiles in the sputum and circulation from 100 asthma patients were measured using the Affymetrix HuGene 1.0ST arrays. Unsupervised clustering analysis based on pathways from KEGG were used to identify TEA clusters of patients from the sputum gene expression profiles. The identified TEA clusters have significantly different pre-bronchodilator FEV1, bronchodilator responsiveness, exhaled nitric oxide levels, history of hospitalization for asthma and history of intubation. Evaluation of TEA clusters in children from Asthma BRIDGE cohort confirmed the identified differences in intubation and hospitalization. Furthermore, evaluation of the TH2 gene signatures suggested a much lower prevalence ...
How Do Teachers Use Comics To Promote Engagement, Equity, And Diversity In Science Classrooms?, 2019 New York University
How Do Teachers Use Comics To Promote Engagement, Equity, And Diversity In Science Classrooms?, Camilla Matuk, Talia Hurwich, Amy Spiegel, Judy Diamond
World of Viruses
Equitable learning opportunities are critical to the goals of science education. However, major curriculum standards are vague on how to achieve equity goals, and educators must often develop their own resources and strategies to achieve equity goals. This study examines how educators used a comic book series designed to interest youth in virology as a way to make science more broadly appealing to their diverse students. We begin with the notion of Pedagogical Design Capacity, which describes a dynamic relationship between teachers and their tools and the ability for teachers to perceive and leverage affordances of artifacts as tools in ...
Hla-Do Modulates The Diversity Of The Mhc-Ii Self-Peptidome, 2018 University of Massachusetts Medical School
Hla-Do Modulates The Diversity Of The Mhc-Ii Self-Peptidome, Padma P. Nanaware, Mollie M. Jurewicz, John D. Leszyk, Scott A. Shaffer, Lawrence J. Stern
Open Access Articles
Presentation of antigenic peptides on MHC-II molecules is essential for tolerance to self and for initiation of immune responses against foreign antigens. DO (HLA-DO in humans, H2-O in mice) is a non-classical MHC-II protein that has been implicated in control of autoimmunity and regulation of neutralizing antibody responses to viruses. These effects likely are related to a role of DO in selecting MHC-II epitopes, but previous studies examining the effect of DO on presentation of selected CD4 T cell epitopes have been contradictory. To understand how DO modulates MHC-II antigen presentation, we characterized the full spectrum of peptides presented by ...
Protective Versus Pathologic Pre-Exposure Cytokine Profiles In Dengue Virus Infection, 2018 Walter Reed Army Institute of Research
Protective Versus Pathologic Pre-Exposure Cytokine Profiles In Dengue Virus Infection, Heather Friberg, Coreen M. Beaumier, Sangshin Park, Pamela P. Pazoles, Timothy P. Endy, Anuja Mathew, Jeffrey R. Currier, Richard G. Jarman, Kathryn B. Anderson, Steven Hatch, Stephen J. Thomas, Alan L. Rothman
Open Access Articles
BACKGROUND: Hyperendemic circulation of all four types of dengue virus (DENV-1-4) has expanded globally, fueling concern for increased incidence of severe dengue. While the majority of DENV infections are subclinical, epidemiologic studies suggest that type-cross-reactive immunity can influence disease outcome in subsequent infections. The mechanisms controlling these differential clinical outcomes remain poorly defined.
METHODOLOGY/PRINCIPAL FINDINGS: Blood samples were collected from a cohort of school-aged Thai children who subsequently experienced a subclinical DENV infection or developed dengue illness. PBMC collected prior to infection were stimulated in vitro with DENV and the secretion of 30 cytokines was measured using a multiplexed ...
Intron-Containing Rna From The Hiv-1 Provirus Activates Type I Interferon And Inflammatory Cytokines, 2018 University of Massachusetts Medical School
Intron-Containing Rna From The Hiv-1 Provirus Activates Type I Interferon And Inflammatory Cytokines, Sean M. Mccauley, Kyusik Kim, Anetta Nowosielska, Ann Dauphin, Leonid Yurkovetskiy, William E. Diehl, Jeremy Luban
Open Access Articles
HIV-1-infected people who take drugs that suppress viremia to undetectable levels are protected from developing AIDS. Nonetheless, HIV-1 establishes proviruses in long-lived CD4(+) memory T cells, and perhaps other cell types, that preclude elimination of the virus even after years of continuous antiviral therapy. Here we show that the HIV-1 provirus activates innate immune signaling in isolated dendritic cells, macrophages, and CD4(+) T cells. Immune activation requires transcription from the HIV-1 provirus and expression of CRM1-dependent, Rev-dependent, RRE-containing, unspliced HIV-1 RNA. If rev is provided in trans, all HIV-1 coding sequences are dispensable for activation except those cis-acting sequences required ...
Peptidylarginine Deiminases 2 And 4 Modulate Innate And Adaptive Immune Responses In Tlr-7-Dependent Lupus., 2018 National Institute of Arthritis and Musculoskeletal and Skin Diseases
Peptidylarginine Deiminases 2 And 4 Modulate Innate And Adaptive Immune Responses In Tlr-7-Dependent Lupus., Yudong Liu, Yaíma L Lightfoot, Nickie Seto, Santanu Mondal, Padmavathy Nandha Premnath, Paul R. Thompson
University of Massachusetts Medical School Publications
The peptidylarginine deiminases PAD2 and PAD4 are implicated in the pathogenesis of several autoimmune diseases. PAD4 may be pathogenic in systemic lupus erythematosus (SLE) through its role in neutrophil extracellular trap (NET) formation that promotes autoantigen externalization, immune dysregulation, and organ damage. The role of this enzyme in mouse models of autoimmunity remains unclear, as pan-PAD chemical inhibitors improve clinical phenotype, whereas PAD4-KO models have given conflicting results. The role of PAD2 in SLE has not been investigated. The differential roles of PAD2 and PAD4 in TLR-7-dependent lupus autoimmunity were examined. Padi4-/- displayed decreased autoantibodies, type I IFN responses, immune ...
Instances Of Influenza In The United States Visualized, 2018 CUNY New York City College of Technology
Instances Of Influenza In The United States Visualized, Parth Patel
Publications and Research
The Tycho Project collects large data sets related to healthcare and in particular, instances and geographical information of diseases. We look at the instance counts and locations of Influenza from 1919-1951 across the United States. We hope to find seasonal and geographical insight to the spread of the disease.
Development And Application Of A Reverse Genetics System For Zika Virus, 2018 Utah State University
Development And Application Of A Reverse Genetics System For Zika Virus, Jordan C. Frank
All Graduate Theses and Dissertations
Zika virus (ZIKV) has emerged in many regions of the world, with infection outcomes spanning from no apparent illness to crippling nervous system disease. ZIKV and its close relatives, West Nile virus, Japanese encephalitis virus, dengue virus, and yellow fever virus are primarily transmitted by mosquitoes. Three ZIKVs were selected: MR-766 (Uganda, 1947), P6-740 (Malaysia, 1966), and PRVABC-59 (Puerto Rico, 2015), whose place of origin and time of isolation differ substantially. Stable, complementary DNA (cDNA) copies of the three ZIKV RNA genomes were cloned to examine the significance of viral and host genetic variations in directing ZIKV infection outcomes. Using ...
Viral Prevalence Among Social Bees In Different Landscapes, 2018 University of Nebraska - Lincoln
Viral Prevalence Among Social Bees In Different Landscapes, Tugce Karacoban
Dissertations and Student Research in Entomology
Honey bees and wild bees provide important pollination services to numerous crops and native plants. In recent years, declines in bee populations have highlighted the importance of the ecological services they provide and the need for more research into the reasons for their decline. Currently, many conservation efforts to mitigate bee losses include increasing forage and habitat, however, there is growing concern over the role interspecific pathogen transmission plays in bee decline. Viruses commonly found in honey bees may be transmitted and pose a threat to other bee species when bees come together at foraging sites. To elucidate the impact ...
The Nf-Kappab Factor Relish Regulates Atg1 Expression And Controls Autophagy, 2018 University of Massachusetts Medical School
The Nf-Kappab Factor Relish Regulates Atg1 Expression And Controls Autophagy, Anubhab Nandy, Lin Lin, Panagiotis D. Velentzas, Louisa P. Wu, Eric H. Baehrecke, Neal S. Silverman
Open Access Articles
Macroautophagy and cell death both contribute to innate immunity, but little is known about how these processes integrate. Drosophila larval salivary glands require autophagy for developmentally programmed cell death, and innate immune signaling factors increase in these dying cells. Here, we show that the nuclear factor kappaB (NF-kappaB) factor Relish, a component of the immune deficiency (Imd) pathway, is required for salivary gland degradation. Surprisingly, of the classic Imd pathway components, only Relish and the PGRP receptors were involved in salivary gland degradation. Significantly, Relish controls salivary gland degradation by regulating autophagy but not caspases. In addition, expression of either ...
Cryptococcus Neoformans Cda1 And Its Chitin Deacetylase Activity Are Required For Fungal Pathogenesis, 2018 Washington University
Cryptococcus Neoformans Cda1 And Its Chitin Deacetylase Activity Are Required For Fungal Pathogenesis, Rajendra Upadhya, Lorina G. Baker, Woei C. Lam, Charles A. Specht, Maureen J. Donlin, Jennifer K. Lodge
Open Access Articles
Chitin is an essential component of the cell wall of Cryptococcus neoformans conferring structural rigidity and integrity under diverse environmental conditions. Chitin deacetylase genes encode the enyzmes (chitin deacetylases [Cdas]) that deacetylate chitin, converting it to chitosan. The functional role of chitosan in the fungal cell wall is not well defined, but it is an important virulence determinant of C. neoformans Mutant strains deficient in chitosan are completely avirulent in a mouse pulmonary infection model. C. neoformans carries genes that encode three Cdas (Cda1, Cda2, and Cda3) that appear to be functionally redundant in cells grown under vegetative conditions. Here ...
Hitchhiker's Guide To Migration: Effects Of Experimental Parasitic Infection And Other Immune Challenges On Migratory Traits Of Sparrows, 2018 The University of Western Ontario
Hitchhiker's Guide To Migration: Effects Of Experimental Parasitic Infection And Other Immune Challenges On Migratory Traits Of Sparrows, Tosha R. Kelly
Electronic Thesis and Dissertation Repository
Seasonal migration exposes animals to a variety of habitats and parasites, and if infected migratory birds migrate successfully there is great potential for birds to transport infectious diseases long distances. Our current understanding of whether birds contribute to the spread of disease relies upon observational field studies that are limited in their ability to discern cause from effect. Using captive and field-based experiments for my doctoral research, I answered three research questions: (1) are nocturnal migratory restlessness (Zugunruhe) and body condition affected by mounting an acute phase immune response during migration; (2) what are the impacts of parasitic infection on ...
Characterization Of The Caspase-3 Cleavage Motif Of The Salmonella Typhimurium Effector Protein Sifa And Its Role In Pathogenesis, 2018 University of Massachusetts Medical School
Characterization Of The Caspase-3 Cleavage Motif Of The Salmonella Typhimurium Effector Protein Sifa And Its Role In Pathogenesis, Samir Patel
GSBS Dissertations and Theses
Salmonella enterica serovar Typhimurium (S. Typhimurium) is a Gram-negative facultative anaerobe that induces severe inflammation resulting in gastroenteritis. In the case of S. Typhimurium infection, induction of an inflammatory response has been linked to its primary virulence mechanism, the type III secretion system (T3SS). The T3SS secretes protein effectors that exploit the host’s cell biology to facilitate bacterial entry and intracellular survival, and to modulate the host immune response.
One such effector, SifA, is a bi-functional T3SS effector protein that plays an important role in Salmonella virulence. The N-terminal domain of SifA binds SifA-Kinesin-Interacting-Protein (SKIP), and via an interaction ...
Deciphering The Molecular Basis Of Mycobacteria And Lipoglycan Recognition By The C-Type Lectin Dectin-2, 2018 University of Toulouse
Deciphering The Molecular Basis Of Mycobacteria And Lipoglycan Recognition By The C-Type Lectin Dectin-2, Alexiane Decout, Devinder Kaur, Jerome Nigou
Open Access Articles
Dectin-2 is a C-type lectin involved in the recognition of several pathogens such as Aspergillus fumigatus, Candida albicans, Schistosoma mansonii, and Mycobacterium tuberculosis that triggers Th17 immune responses. Identifying pathogen ligands and understanding the molecular basis of their recognition is one of the current challenges. Purified M. tuberculosis mannose-capped lipoarabinomannan (ManLAM) was shown to induce signaling via Dectin-2, an activity that requires the (alpha1 --> 2)-linked mannosides forming the caps. Here, using isogenic M. tuberculosis mutant strains, we demonstrate that ManLAM is a bona fide and actually the sole ligand mediating bacilli recognition by Dectin-2, although M. tuberculosis produces a ...
Development Of A Pd-L1 Pet Imaging Biomarker, 2018 University of Louisville
Development Of A Pd-L1 Pet Imaging Biomarker, Caleb Jack Bridgwater
Immunotherapy strategies are very promising treatments for cancer patients. Specifically, Immune checkpoint inhibitor therapy focusing on the PD-1/PD-L1 pathway shows long-lasting positive results in many cancer patients. Unfortunately, not all the patients can benefit from this highly effective treatment. Hence, there is a great need for predictive biomarkers. Immunohistochemical (IHC) staining has been used as a way of predicting patient response, yet shows many problems. For example, IHC utilizes an invasive biopsy and sample fixing, which creates an incomplete and delayed picture of the patient’s biochemistry and the tumor microenvironment, consequently ignoring metastases.
The purpose of this study ...
Genetic Models Reveal Cis And Trans Immune-Regulatory Activities For Lincrna-Cox2, 2018 University of Massachusetts Medical School
Genetic Models Reveal Cis And Trans Immune-Regulatory Activities For Lincrna-Cox2, Roland Elling, Zhaozhao Jiang, Shiuli Agarwal, Mona Motwani, Jennie Chan, Shrutie Sharma, Katherine A. Fitzgerald, Susan Carpenter
Open Access Articles
An inducible gene expression program is a hallmark of the host inflammatory response. Recently, long intergenic non-coding RNAs (lincRNAs) have been shown to regulate the magnitude, duration, and resolution of these responses. Among these is lincRNA-Cox2, a dynamically regulated gene that broadly controls immune gene expression. To evaluate the in vivo functions of this lincRNA, we characterized multiple models of lincRNA-Cox2-deficient mice. LincRNA-Cox2-deficient macrophages and murine tissues had altered expression of inflammatory genes. Transcriptomic studies from various tissues revealed that deletion of the lincRNA-Cox2 locus also strongly impaired the basal and inducible expression of the neighboring gene prostaglandin-endoperoxide synthase (Ptgs2 ...
Thymic Epithelial Cell Reprogramming And Co-Culture With T-Cell Progenitors, 2018 University of Georgia
Thymic Epithelial Cell Reprogramming And Co-Culture With T-Cell Progenitors, Isabelle Riddle
Georgia Undergraduate Research Conference (GURC)
The thymus is a lymphoid organ found in the neck region of vertebrates that produces T-cells critical for the adaptive immune system. However, thymus involution relatively early in the aging process leads to a deterioration in immune function. Models in regenerative medicine have the prospect of replacing lost cells and combating the problem. This experiment is a preliminary step geared towards achieving the overarching goal of boosting long-term maintenance of adaptive immunity over the typical aging process or following therapeutic immune depletion. Specifically, the objective is to show that disparate cell lineages can be reprogrammed—both morphologically and physiologically—using ...
21 - Cigarette Smoke Exposure Upregulation Of Pge₂ Expression In The Bladder, 2018 University of North Georgia
21 - Cigarette Smoke Exposure Upregulation Of Pge₂ Expression In The Bladder, Jessica Nix
Georgia Undergraduate Research Conference (GURC)
CIGARETTE SMOKE EXPOSURE UPREGULATION OF PGE₂ EXPRESSION IN THE BLADDER
Jessica Nix, Jane McHowat, Shannon Kispert
Cigarette smoking remains the leading cause of preventable death and disease in the United States. Despite known risks, 42.1 million Americans continue to smoke, making research into tobacco-related pathologies relevant and necessary. We previously discovered that cigarette smoke exposure leads to tumor progression in the breast via platelet activating factor (PAF) and other phospholipase A₂ (PLA₂) metabolic pathways. These results led us to examine the PLA2 metabolite, prostaglandin E₂ (PGE₂). We observed the expression of PGE₂ in mouse bladder and human heart ...
Museum Metabarcoding: A Novel Method Revealing Gut Helminth Communities Of Small Mammals Across Space And Time, 2018 Georgia Southern University
Museum Metabarcoding: A Novel Method Revealing Gut Helminth Communities Of Small Mammals Across Space And Time, Stephen E. Greiman, Joseph A. Cook, Vasyl V. Tkach, Eric P. Hoberg, Damian M. Menning, Andrew G. Hope, Sarah A. Sonsthagen, Sandra L. Talbot
Faculty Publications from the Harold W. Manter Laboratory of Parasitology
Natural history collections spanning multiple decades provide fundamental historical baselines to measure and understand changing biodiversity. New technologies such as next generation DNA sequencing have considerably increased the potential of museum specimens to address significant questions regarding the impact of environmental changes on host and parasite/pathogen dynamics. We developed a new technique to identify intestinal helminth parasites and applied it to shrews (Eulipotyphla: Soricidae) because they are ubiquitous, occupy diverse habitats, and host a diverse and abundant parasite fauna. Notably, we included museum specimens preserved in various ways to explore the efficacy of using metabarcoding analyses that may enable ...
Characterization Of Tick Organic Anion Transporting Polypeptides (Oatps) Upon Bacterial And Viral Infections, 2018 Old Dominion University
Characterization Of Tick Organic Anion Transporting Polypeptides (Oatps) Upon Bacterial And Viral Infections, Vikas Taank, Wenshou Zhou, Xuran Zhuang, John F. Anderson, Utpal Pal, Hameeda Sultana, Girish Neelakanta
Biological Sciences Faculty Publications
Background: Ixodes scapularis organic anion transporting polypeptides (OATPs) play important roles in tickrickettsial pathogen interactions. In this report, we characterized the role of these conserved molecules in ticks infected with either Lyme disease agent Borrelia burgdorferi or tick-borne Langat virus (LGTV), a pathogen closely related to tick-borne encephalitis virus (TBEV).
Results: Quantitative real-time polymerase chain reaction analysis revealed no significant changes in oatps gene expression upon infection with B. burgdorferi in unfed ticks. Synchronous infection of unfed nymphal ticks with LGTV in vitro revealed no significant changes in oatps gene expression. However, expression of specific oatps was significantly downregulated upon ...