Abstract
Cytotoxic T lymphocytes (CTLs) recognize peptides presented by HLA class I molecules on the cell surface. The C terminus of these CTL epitopes is considered to be produced by the proteasome. Here we demonstrate that the cytosolic endopeptidases nardilysin and thimet oligopeptidase (TOP) complemented proteasome activity. Nardilysin and TOP were required, either together or alone, for the generation of a tumor-specific CTL epitope from PRAME, an immunodominant CTL epitope from Epstein-Barr virus protein EBNA3C, and a clinically important epitope from the melanoma protein MART-1. TOP functioned as C-terminal trimming peptidase in antigen processing, and nardilysin contributed to both the C-terminal and N-terminal generation of CTL epitopes. By broadening the antigenic peptide repertoire, nardilysin and TOP strengthen the immune defense against intracellular pathogens and cancer.
| Original language | English |
|---|---|
| Pages (from-to) | 45-53 |
| Number of pages | 9 |
| Journal | Nature Immunology |
| Volume | 12 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2011 |
Bibliographical note
Funding Information:We thank T. Dannenberg and K. Textoris-Taube for technical assistance. Supported by the Dutch Cancer Society (UL 2005-3245) and Stichting Vanderes.
Funding
We thank T. Dannenberg and K. Textoris-Taube for technical assistance. Supported by the Dutch Cancer Society (UL 2005-3245) and Stichting Vanderes.
| Funders | Funder number |
|---|---|
| Dutch Cancer Society | UL 2005-3245 |
| Stichting Vanderes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology
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