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  • Multiomics Investigation Revealing the Characteristics of HIV-1-Infected Cells In Vivo.

Multiomics Investigation Revealing the Characteristics of HIV-1-Infected Cells In Vivo.

Cell reports (2020-07-16)
Hirofumi Aso, Shumpei Nagaoka, Eiryo Kawakami, Jumpei Ito, Saiful Islam, Benjy Jek Yang Tan, Shinji Nakaoka, Koichi Ashizaki, Katsuyuki Shiroguchi, Yutaka Suzuki, Yorifumi Satou, Yoshio Koyanagi, Kei Sato
초록

For eradication of HIV-1 infection, it is important to elucidate the detailed features and heterogeneity of HIV-1-infected cells in vivo. To reveal multiple characteristics of HIV-1-producing cells in vivo, we use a hematopoietic-stem-cell-transplanted humanized mouse model infected with GFP-encoding replication-competent HIV-1. We perform multiomics experiments using recently developed technology to identify the features of HIV-1-infected cells. Genome-wide HIV-1 integration-site analysis reveals that productive HIV-1 infection tends to occur in cells with viral integration into transcriptionally active genomic regions. Bulk transcriptome analysis reveals that a high level of viral mRNA is transcribed in HIV-1-infected cells. Moreover, single-cell transcriptome analysis shows the heterogeneity of HIV-1-infected cells, including CXCL13high cells and a subpopulation with low expression of interferon-stimulated genes, which can contribute to efficient viral spread in vivo. Our findings describe multiple characteristics of HIV-1-producing cells in vivo, which could provide clues for the development of an HIV-1 cure.

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Sigma-Aldrich
Anti-Green Fluorescent Protein (GFP), N-terminal antibody, Mouse monoclonal, clone GSN24, purified from hybridoma cell culture
Sigma-Aldrich
Monoclonal Anti-α-Tubulin antibody produced in mouse, clone DM1A, ascites fluid