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Research Lab Results for pathogenesis

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  • Neuroimmunopathology Lab

    The research activities of the Neuroimmunopathology Laboratory focus on studies of immunologica...l and molecular mechanisms involved in the pathogenesis of neurological disorders. Our main areas of research include studies of neurological complications of HIV infection and AIDS, multiple sclerosis, transverse myelitis, autism and epilepsy. We seek to explore and identify immunopathological mechanisms associated with neurological disease that may be the target of potential therapeutic interventions. The laboratory collaborates with other researchers and laboratories at Johns Hopkins and other institutions in projects related with studies of the interaction between the immune and central nervous systems in pathological processes leading to neurological dysfunction. view more

    Research Areas: multiple sclerosis, autism, epilepsy, HIV, transverse myelitis
  • Nicola Heller Lab

    Lab Website

    Research in the Nicola Heller Lab focuses on the immunobiology of macrophages. Our team explore...s how these cells impact diseases with an inflammatory element, such as cancer, cardiovascular disease and obesity. Using a variety of techniques, including molecular and cellular biology, biochemistry, mouse models and more, we study the role of IL-4/IL-13 signaling in asthma and allergic disease, as well as the role of alternatively activated macrophages (AAM) in the pathogenesis of allergic inflammation. Currently, we are researching the links between asthma and obesity, with a focus on the roles of gender and race. view more

    Research Areas: asthma, allergies, immunobiology, inflammation, macrophages
  • Pulmonary Infection and Inflammation Research Lab

    Principal Investigator:
    Hongpeng Jia, M.D., M.Sc.
    Surgery

    The Jia lab performs basic and translational research into the mechanisms of and therapeutic st...rategy for viral and bacterial infection-induced inflammatory lung diseases, one of the leading causes of death in pulmonary diseases, especially for the ongoing pandemic of the SARS-CoV-2 mediated COVID-19. Our work has identified novel roles of Angiotensin-converting enzyme 2 (ACE2) in the inflammatory response to viral and bacterial lung infection and its complex contributions into the pathogenesis and disease progression and outcome of COVID-19. In seeking to translate these findings to clinical studies, we have been working on a collaboration with other investigators, developing novel diagnostic, preventive, and therapeutic tools in combating the devastating COVID-19, even in the era of effective vaccine prevention. These studies are funded by NIAID. view more

    Research Areas: RAS, viral and bacterial lung infection, inflammatory lung disease
  • Retinal Cell and Molecular Lab

    Lab Website
    Principal Investigator:
    Peter Campochiaro, M.D.
    Ophthalmology

    The Retinal Cell and Molecular Laboratory has three major areas of interest, each of which deal...s with some aspect of growth factor signaling and function in the retina and retinal pigmented epithelium (RPE): 1. Investigations aimed at gaining a better understanding of the pathogenesis of retinal and choroidal neovascularization and developing new ways to treat them.
    2. Investigations aimed at understanding the molecular signals involved in retinal and RPE wound repair and scarring. The prototypical disease in this category is proliferative vitreoretinopathy and our laboratory is seeking to identify new treatments for it. 3. Investigations aimed at understanding why retinal degenerations occur and how they might be treated, with particular emphasis on neurotrophic factors.
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    Research Areas: choroidal neovascularization, branch retinal vein occlusion, central retinal vein occlusion, diabetic macular edema, gene therapy, ranibizumab
  • Retrovirus Laboratory

    Principal Investigator:
    Janice Clements, Ph.D.
    Molecular and Comparative Pathobiology

    Research in the Retrovirus Laboratory focuses on the molecular virology and pathogenesis of len...tivirus infections. In particular, we study the simian immunodeficiency virus (SIV) to determine the molecular basis for the development of HIV CNS, pulmonary and cardiac disease.

    Research projects include studies of viral molecular genetics and host cell genes and proteins involved in the pathogenesis of disease. We are also interested in studies of lentivirus replication in macrophages and astrocytes and their role in the development of disease. These studies have led us to identify the viral genes that are important in neurovirulence of SIV and the development of CNS disease including NEF and the TM portion of ENV. The mechanisms of the action of these proteins in the CNS are complex and are under investigation. We have also developed a rapid, consistent SIV/macaque model in which we can test the ability of various antiviral and neuroprotective agents to reduce the severity of CNS and pulmonary disease.
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    Research Areas: HIV, genomics, pulmonology, SIV, cardiology, lentivirus
  • Richard F. Ambinder Lab

    Lab Website

    Epstein-Barr virus and Kaposi's sarcoma herpesvirus are found in association with a variety of ...cancers. Our laboratory studies are aimed at better defining the role(s) of the virus in the pathogenesis of these diseases and the development of strategies to prevent, diagnose or treat them. We have become particularly interested in the unfolded protein response in activation of latent viral infection. Among the notions that we are exploring is the possibility that activation of virus-encoded enzymes will allow the targeted delivery of radation. In addition, we are investigating a variety of virus-related biomarkers including viral DNA, antibody responses, and cytokine measurements that may be clinically relevant. view more

    Research Areas: virology, antiviral therapy
  • Stivers Lab

    Lab Website

    The Stivers Lab is broadly interested in the biology of the RNA base uracil when it is present ...in DNA. Our work involves structural and biophysical studies of uracil recognition by DNA repair enzymes, the central role of uracil in adapative and innate immunity, and the function of uracil in antifolate and fluoropyrimidine chemotherapy. We use a wide breadth of structural, chemical, genetic and biophysical approaches that provide a fundamental understanding of molecular function. Our long-range goal is to use this understanding to design novel small molecules that alter biological pathways within a cellular environment. One approach we are developing is the high-throughput synthesis and screening of small molecule libraries directed at important targets in cancer and HIV-1 pathogenesis. view more

    Research Areas: biophysics, enzymes, cell biology, uracil, cancer, HIV, DNA, RNA
  • Tamara O'Connor Lab

    The O'Connor Lab studies the molecular basis of infectious disease using Legionella pneumophila... pathogenesis as a model system.

    We are looking at the network of molecular interactions acting at the host-pathogen interface. Specifically, we use L. pneumophila pathogenesis to examine the numerous mechanisms by which an intracellular bacterial pathogen can establish infection, how it exploits host cell machinery to accomplish this, and how individual proteins and their component pathways coordinately contribute to disease.

    We are also studying the role of environmental hosts in the evolution of human pathogens. Using genetics and functional genomics, we compare and contrast the repertoires of virulence proteins required for growth in a broad assortment of hosts, how the network of molecular interactions differs between hosts, and the mechanisms by which L. pneumophila copes with this variation.
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    Research Areas: infectious disease, Legionella pneumophila, genomics, pathogenesis, molecular biology
  • Ted Dawson Laboratory

    Lab Website
    Principal Investigator:
    Ted Dawson, M.D., Ph.D.
    Neurology

    The Ted Dawson Laboratory uses genetic, cell biological and biochemical approaches to explore t...he pathogenesis of Parkinson's disease (PD) and other neurologic disorders. We also investigate several discrete mechanisms involved in cell death, including the role of nitric oxide as an endogenous messenger, the function of poly (ADP-ribose) polymerase-1 and apoptosis inducing factor in cell death, and how endogenous cell survival mechanisms protect neurons from death. view more

    Research Areas: nitric oxide, neuronal signaling, genomics, pathogenesis, Parkinson's disease, cell death
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