[HTML][HTML] Single-cell epigenetic, transcriptional, and protein profiling of latent and active HIV-1 reservoir revealed that IKZF3 promotes HIV-1 persistence

Y Wei, TC Davenport, JA Collora, HK Ma… - Immunity, 2023 - cell.com
Y Wei, TC Davenport, JA Collora, HK Ma, D Pinto-Santini, J Lama, R Alfaro, A Duerr, YC Ho
Immunity, 2023cell.com
Understanding how HIV-1-infected cells proliferate and persist is key to HIV-1 eradication,
but the heterogeneity and rarity of HIV-1-infected cells hamper mechanistic interrogations.
Here, we used single-cell DOGMA-seq to simultaneously capture transcription factor
accessibility, transcriptome, surface proteins, HIV-1 DNA, and HIV-1 RNA in memory CD4+ T
cells from six people living with HIV-1 during viremia and after suppressive antiretroviral
therapy. We identified increased transcription factor accessibility in latent HIV-1-infected …
Summary
Understanding how HIV-1-infected cells proliferate and persist is key to HIV-1 eradication, but the heterogeneity and rarity of HIV-1-infected cells hamper mechanistic interrogations. Here, we used single-cell DOGMA-seq to simultaneously capture transcription factor accessibility, transcriptome, surface proteins, HIV-1 DNA, and HIV-1 RNA in memory CD4+ T cells from six people living with HIV-1 during viremia and after suppressive antiretroviral therapy. We identified increased transcription factor accessibility in latent HIV-1-infected cells (RORC) and transcriptionally active HIV-1-infected cells (interferon regulatory transcription factor [IRF] and activator protein 1 [AP-1]). A proliferation program (IKZF3, IL21, BIRC5, and MKI67 co-expression) promoted the survival of transcriptionally active HIV-1-infected cells. Both latent and transcriptionally active HIV-1-infected cells had increased IKZF3 (Aiolos) expression. Distinct epigenetic programs drove the heterogeneous cellular states of HIV-1-infected cells: IRF:activation, Eomes:cytotoxic effector differentiation, AP-1:migration, and cell death. Our study revealed the single-cell epigenetic, transcriptional, and protein states of latent and transcriptionally active HIV-1-infected cells and cellular programs promoting HIV-1 persistence.
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