Combination Immune Checkpoint Blockade Enhances IL-2 and CD107a Production from HIV-Specific T Cells Ex Vivo in People Living with HIV on Antiretroviral Therapy.
Combination Immune Checkpoint Blockade Enhances IL-2 and CD107a Production from HIV-Specific T Cells Ex Vivo in People Living with HIV on Antiretroviral Therapy.
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DOI:
10.4049/jimmunol.2100367
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发表时间:
2022-01-01
期刊:
影响因子:
--
通讯作者:
Lewin SR
中科院分区:
文献类型:
--
作者:
Chiu CY;Chang JJ;Dantanarayana AI;Solomon A;Evans VA;Pascoe R;Gubser C;Trautman L;Fromentin R;Chomont N;McMahon JH;Cameron PU;Rasmussen TA;Lewin SR
In people with HIV (PWH) on antiretroviral therapy (ART), immune dysfunction persists, including elevated expression of immune checkpoint (IC) proteins on total and HIV-specific T-cells. Reversing immune exhaustion is one strategy to enhance the elimination of HIV-infected cells that persist in PWH on ART. We aimed to evaluate whether blocking cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), programmed cell death protein 1 (PD-1), T cell immunoglobulin domain and mucin domain 3 (TIM-3), T cell immunoglobulin and ITIM domain (TIGIT) and lymphocyte activation gene-3 (LAG-3) alone or in combination would enhance HIV-specific CD4+ and CD8+ T cell function ex vivo. Intracellular cytokine staining was performed using human peripheral blood mononuclear cells (PBMCs) from PWH on ART (n=11) and expression of CD107a, IFNγ, TNFα and IL-2 quantified with HIV peptides and antibodies to IC. We found that i) IC blockade enhanced the induction of CD107a and IL-2, but not IFNγ and TNFα, in response to Gag and Nef peptides, ii) the induction of CD107a and IL-2 was greatest with multiple combinations of two antibodies, and iii) antibodies to LAG-3, CTLA-4 and TIGIT in combinations showed synergistic induction of IL-2 in HIV-specific CD8+ and CD107a and IL-2 production in HIV-specific CD4+ and CD8+ T cells. These results demonstrate that the combination of antibodies to LAG-3, CTLA-4 or TIGIT can increase the frequency of cells expressing CD107a and IL-2 that associated with cytotoxicity and survival of HIV-specific CD4+ and CD8+ T cells in PWH on ART. These combinations should be further explored for an HIV cure.
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DOI:
10.4049/jimmunol.1000156
发表时间:
2010-09-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Kassu A;Marcus RA;D'Souza MB;Kelly-McKnight EA;Golden-Mason L;Akkina R;Fontenot AP;Wilson CC;Palmer BE
通讯作者:
Palmer BE
影响因子:
6.4
作者:
Gay, Cynthia L.;Bosch, Ronald J.;Eron, Joseph J.
通讯作者:
Eron, Joseph J.
影响因子:
8.6
作者:
Grabmeier-Pfistershammer, Katharina;Stecher, Carmen;Steinberger, Peter
通讯作者:
Steinberger, Peter
影响因子:
158.5
作者:
Larkin, J.;Chiarion-Sileni, V.;Wolchok, J. D.
通讯作者:
Wolchok, J. D.
DOI:
10.1084/jem.20082429
发表时间:
2008-11-24
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Hafler DA;Kuchroo V
通讯作者:
Kuchroo V