Abstract
Studying neurological diseases have long been hampered by the lack of physiologically relevant models to resemble the complex human brain and the associated pathologies. Three-dimensional brain organoids have emerged as cutting-edge technology providing an alternative in vitro model to study healthy neural development and function as well as pathogenesis of neurological disorders and neuropathologies induced by pathogens. Nonetheless,the absence of immune cells in current models poses a barrier to fully recapitulate brain microenvironment during the onset of HIV-1-associated neuropathogenesis. To address this and to further the brain organoid technology, we have incorporated HIV-target microglia into brain organoids, generating a complex multicellular interaction, which mimics the HIV-1-infected brain environment. Here we describe the method to generate a brain organoid consisting on neurons, astrocytes, and microglia (with and without HIV infection) that recapitulate the HIV-associated neuropathology. This model has tremendous potential to expand our knowledge on neuronal dysfunction associated with HIV-1 infection of glia.
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