ArticleThe Journal of infectious diseases2021
Disease Progression in Children With Perinatal Human Immunodeficiency Virus Correlates With Increased PD-1+ CD8 T Cells That Coexpress Multiple Immune Checkpoints.
Article in The Journal of infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.
- Expression Profile and Biological Role of Immune Checkpoints in Disease Progression of HIV/SIV Infection.Viruses · 2022Pooled it
- Partially-functional exhausted CD8+ T cells can contribute to short-term viral suppression: a computational prediction for children with perinatal HIV.bioRxiv : the preprint server for biology · 2025Article
- Expression of TIGIT, PD-1 and HLA-DR/CD38 markers on CD8-T cells of children and adolescents infected with HIV and uninfected controls.Revista do Instituto de Medicina Tropical de Sao Paulo · 2023Article
Corrections and comments
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Authors and funding
13 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundPD-1 marks exhausted T cells, with weak effector functions. Adults living with human immunodeficiency virus (HIV) have increased levels of PD-1+ CD8 T cells that correlate with HIV disease progression, yet little is known about the role of PD-1+ CD8 T cells in children with perinatal HIV.
methodsWe enrolled 76 Kenyan children with perinatal HIV and 43 children who were HIV unexposed and quantified PD-1 levels on CD8 T cells; their coexpression with immune checkpoints (ICs) 2B4, CD160, and TIM3; correlates with immune activation and HIV disease progression; and HIV-specific and -nonspecific proliferative responses.
resultsPD-1+ CD8 T-cell frequencies are elevated in children with perinatal HIV and associated with disease progression. The majority of PD-1+ CD8 T cells coexpress additional ICs. ART initiation lowers total PD-1 levels and coexpression of multiple ICs. The frequency of PD-1+2B4+CD160+TIM3- in PD-1+ CD8 T cells predicts weaker HIV-specific proliferative responses, suggesting that this subset is functionally exhausted.
conclusionsChildren with perinatal HIV have high levels of PD-1+ CD8 T cells that are a heterogeneous population differentially coexpressing multiple ICs. Understanding the complex interplay of ICs is essential to guide the development of PD-1-directed immunotherapies for pediatric HIV remission and cure.
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