The interplay between the human immunodeficiency virus type one (HIV-1), CD4+ T cell subset numbers and function and central nervous system disease is the focus of this proposal now in its 24th year. During the prior investigative cycle systemic viral infection was not shown to influence nigrostriatal degeneration for Parkinson's disease (PD). However, effector immune responses for both innate and adaptive immunity were operative in PD, HIV-1, traumatic brain injury and Alzheimer's disease (AD). All can be ameliorated by immune transformation and can forestall neurodegenerative activities. While age dependent neurodegeneration in HIV/AIDS is linked to ?-synuclein neural inclusions and amyloid-? (A?) accumulation virus-induction of disease is less certain. What is rests in the interplay between immunity and misfolded proteins are serving as disease effectors. We posit that virus-induced neuroinflammation affect neurodegenerative disease. This is based on the notion that mononuclear phagocytes (MP: microglia and perivascular macrophages) and CD4+ T lymphocyte produce factors that affect the brain's microenvironment and can be transformed for therapeutic gains. T cell immunity drives the tempo of disease. To extend such observations we will determine the roles of adaptive immunity in affecting cognitive, behavior and neuropathobiology in the setting of HIV/AIDS and neurodegenerative diseases. We will generate HIV-1-infected and AD biogenesis rodents and use them to better understand disease events. We will elucidate the interplay between virus, immunity and brain subregion disease as well as A? biopathogenesis. These events will be linked to neuronal vitality. The interplay between CD4+ T cells and MP is a principal disease event while regulatory T cells are central to neuroprotective outcomes.

Public Health Relevance

We will investigate how the interactions between the human immunodeficiency virus type one and immunity can affect the pathobiology of brain disorders such as those caused by the virus and Alzheimer's or Parkinson's disease. A unique animal model of both diseases will be used and studies of the pathways for neural damage will be made by careful dissection of the immune system.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
5R01NS034239-26
Application #
10112314
Study Section
NeuroAIDS and other End-Organ Diseases Study Section (NAED)
Program Officer
Wong, May
Project Start
1995-04-01
Project End
2023-02-28
Budget Start
2021-03-01
Budget End
2022-02-28
Support Year
26
Fiscal Year
2021
Total Cost
Indirect Cost
Name
University of Nebraska Medical Center
Department
Pharmacology
Type
Schools of Medicine
DUNS #
168559177
City
Omaha
State
NE
Country
United States
Zip Code
68198
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Schutt, Charles R; Gendelman, Howard E; Mosley, R Lee (2018) Tolerogenic bone marrow-derived dendritic cells induce neuroprotective regulatory T cells in a model of Parkinson's disease. Mol Neurodegener 13:26
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Ottemann, Brendan M; Helmink, Austin J; Zhang, Wenting et al. (2018) Bioimaging predictors of rilpivirine biodistribution and antiretroviral activities. Biomaterials 185:174-193

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