STLV-1 Commonly Targets Neurons in the Brain of Asymptomatic Non-Human Primates

by | Feb 22, 2023 | Publications

mBio. 2023 Feb 21:e0352622. doi: 10.1128/mbio.03526-22. Online ahead of print.


The human T-cell leukemia virus (HTLV)-1 is responsible for an aggressive neurodegenerative disease (HAM/TSP) and multiple neurological alterations. The capacity of HTLV-1 to infect central nervous system (CNS) resident cells, together with the neuroimmune-driven response, has not been well-established. Here, we combined the use of human induced pluripotent stem cells (hiPSC) and of naturally STLV-1-infected nonhuman primates (NHP) as models with which to investigate HTLV-1 neurotropism. Hence, neuronal cells obtained after hiPSC differentiation in neural polycultures were the main cell population infected by HTLV-1. Further, we report the infection of neurons with STLV-1 in spinal cord regions as well as in brain cortical and cerebellar sections of postmortem NHP. Additionally, reactive microglial cells were found in infected areas, suggesting an immune antiviral response. These results emphasize the need to develop new efficient models by which to understand HTLV-1 neuroinfection and suggest an alternative mechanism that leads to HAM/TSP.

PMID:36802226 | DOI:10.1128/mbio.03526-22

Other publications you may be interested in…

HTLV-1 Disease

HTLV-1 Disease

HTLV-1 Disease Abstract The years 2020 and 2021 will remain memorable years for many reasons [...]. Click here to...

read more