1. In vivo killing of primary HIV-infected cells by peripheral-injected early memory–enriched anti-HIV duoCAR T cells
- Author
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Anthony-Gonda, Kim, Ray, Alex, Su, Hang, Wang, Yuge, Xiong, Ying, Lee, Danica, Block, Ariele, Chilunda, Vanessa, Weiselberg, Jessica, Zemelko, Lily, Wang, Yen Y, Kleinsorge-Block, Sarah, Reese, Jane S, de Lima, Marcos, Ochsenbauer, Christina, Kappes, John C, Dimitrov, Dimiter S, Orentas, Rimas, Deeks, Steven G, Rutishauser, Rachel L, Berman, Joan W, Goldstein, Harris, and Dropulić, Boro
- Subjects
Clinical Research ,HIV/AIDS ,Stem Cell Research - Nonembryonic - Human ,Infectious Diseases ,Genetics ,Human Fetal Tissue ,Immunization ,Stem Cell Research ,Development of treatments and therapeutic interventions ,5.2 Cellular and gene therapies ,Infection ,Animals ,Mice ,CD4-Positive T-Lymphocytes ,HIV Infections ,HIV-1 ,Leukocytes ,Mononuclear ,Receptors ,Chimeric Antigen ,Clinical Trials ,Phase I as Topic ,Clinical Trials ,Phase II as Topic ,AIDS/HIV ,Immunotherapy ,Therapeutics - Abstract
HIV-specific chimeric antigen receptor-T cell (CAR T cell) therapies are candidates to functionally cure HIV infection in people with HIV (PWH) by eliminating reactivated HIV-infected cells derived from latently infected cells within the HIV reservoir. Paramount to translating such therapeutic candidates successfully into the clinic will require anti-HIV CAR T cells to localize to lymphoid tissues in the body and eliminate reactivated HIV-infected cells such as CD4+ T cells and monocytes/macrophages. Here we show that i.v. injected anti-HIV duoCAR T cells, generated using a clinical-grade anti-HIV duoCAR lentiviral vector, localized to the site of active HIV infection in the spleen of humanized mice and eliminated HIV-infected PBMCs. CyTOF analysis of preinfusion duoCAR T cells revealed an early memory phenotype composed predominantly of CCR7+ stem cell-like/central memory T cells (TSCM/TCM) with expression of some effector-like molecules. In addition, we show that anti-HIV duoCAR T cells effectively sense and kill HIV-infected CD4+ T cells and monocytes/macrophages. Furthermore, we demonstrate efficient genetic modification of T cells from PWH on suppressive ART into anti-HIV duoCAR T cells that subsequently kill autologous PBMCs superinfected with HIV. These studies support the safety and efficacy of anti-HIV duoCAR T cell therapy in our presently open phase I/IIa clinical trial (NCT04648046).
- Published
- 2022