ArticleThe Journal of experimental medicine2023
A cell-free antigen processing system informs HIV-1 epitope selection and vaccine design.
Article in The Journal of experimental medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed, 12 citations in OpenAlex.
- Glycoprotein G enables HSV-2 neuroinvasion and provides protection as a glycosylated vaccine antigen.PLoS pathogens · 2026Article
- Decoding the glycan shield: Immune recognition and response to the HIV-1 envelope trimer.The Journal of biological chemistry · 2026Review
- The GF-NEO discovery platform unveils a [KQE][DG] sequence motif within fusion neoantigens in pediatric cancer.iScience · 2026Article
- Cut or bind? Antigen-specific processing mechanisms define CD4Genome medicine · 2025Article
- Article
- T-Cell Epitope-Based Vaccines: A Promising Strategy for Prevention of Infectious Diseases.Vaccines · 2024Review
- A Chicken Tapasin ortholog can chaperone empty HLA-B∗37:01 molecules independent of other peptide-loading components.The Journal of biological chemistry · 2023Article
- Harnessing Autophagy to Overcome Antigen-Specific T-Cell Dysfunction: Implication for People Living with HIV-1.International journal of molecular sciences · 2023Review
- Proper development of long-lived memory CD4 T cells requires HLA-DO function.Frontiers in immunology · 2023Article
Corrections and comments
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Authors and funding
18 authors at 4 institutions in 1 country.
Funding
Abstract
Distinct CD4+ T cell epitopes have been associated with spontaneous control of HIV-1 replication, but analysis of antigen-dependent factors that influence epitope selection is lacking. To examine these factors, we used a cell-free antigen processing system that incorporates soluble HLA-DR (DR1), HLA-DM (DM), cathepsins, and full-length protein antigens for epitope identification by LC-MS/MS. HIV-1 Gag, Pol, Env, Vif, Tat, Rev, and Nef were examined using this system. We identified 35 novel epitopes, including glycopeptides. Epitopes from smaller HIV-1 proteins mapped to regions of low protein stability and higher solvent accessibility. HIV-1 antigens associated with limited CD4+ T cell responses were processed efficiently, while some protective epitopes were inefficiently processed. 55% of epitopes obtained from cell-free processing induced memory CD4+ T cell responses in HIV-1+ donors, including eight of 19 novel epitopes tested. Thus, an in vitro processing system utilizing the components of Class II processing reveals factors influencing epitope selection of HIV-1 and represents an approach to understanding epitope selection from non-HIV-1 antigens.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.