Cited by 196Immunotherapy and Immune ResponsesAutophagy in Disease and TherapyT-cell and B-cell Immunology

Autophagy within the antigen donor cell facilitates efficient antigen cross-priming of virus-specific CD8+ T cells

Uhl, M, Kepp, O, Jusforgues-Saklani, H, Vicencio, J-M, Kroemer, G, Albert, M L·2009·Cell Death & Differentiation

Abstract

Cross-presentation of cell-associated antigen is important in the priming of CD8(+) T-cell responses to proteins that are not expressed by antigen-presenting cells (APCs). In vivo, dendritic cells are the main cross-presenting APC, and much is known regarding their ability to capture and process cell-associated antigen. In contrast, little is known about the way death effector pathways influence the efficiency of cross-priming. Here, we compared two important mechanisms of programmed cell death: classical apoptosis, as it occurs in wild-type (WT) fibroblasts, and caspase-independent cell death, which occurs with increased features of autophagy in Bax/Bak(-/-) fibroblasts. We assessed virally infected WT and Bax/Bak(-/-) fibroblasts as a source of cell-associated antigen. We found that immunization with cells undergoing autophagy before cell death was superior in facilitating the cross-priming of antigen-specific CD8(+) T cells. Strikingly, silencing of Atg5 expression inhibited priming. We interpret this to be a novel form of 'immunogenic death' with the enhanced priming efficiency being a result of persistent MHC I cross-presentation and the induction of type I interferons. These results offer the first molecular evidence that catabolic pathways, including autophagy, influence the efficiency of cross-priming. We predict that targeting the autophagy cascade may provide a therapeutic strategy for achieving robust cross-priming of viral and tumor-specific CD8(+) T cells.

Integrity signals

Registry

Crossref · 10.1038/cdd.2009.8

Cites

67 of 67 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Antigens associated with apoptotic cells engulfed by DC can be cross-presented by MHC class I to CD8+ T cells to prime CTL.

    “Antigens associated with apoptotic cells and engulfed by DC can be cross-presented by MHC class I molecules to CD8+ T cells to prime CTL. 67”

    From Immunogenic and tolerogenic cell death (2009) · cites this paper as [67]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Uhl, M., Kepp, O., Jusforgues-Saklani, H., Vicencio, J.-M., Kroemer, G., & Albert, M. L.
Affiliations
  • Institut Pasteur (FR)
  • Université Paris-Sud (FR)
  • Inserm (FR)
Corresponding author
Albert, M L
Venue
Cell Death & Differentiation
Published
2009-02-20
Volume
16
Issue
7
Pages
991-1005
ISSN
  • 1350-9047 (ISSN-L)
  • 1476-5403
OpenAlex
W2093172507
Cited by
196
References
67
Citations by year
2026: 4 · 2025: 2 · 2024: 5 · 2023: 7 · 2022: 10 · 2021: 12 · 2020: 8 · 2019: 12 · 2018: 13 · 2017: 10 · 2016: 16 · 2015: 7 · 2014: 15 · 2013: 18 · 2012: 19
FWCI
8.19
Type
journal article
Language
en
Open access
closed
Locations
  • Cell Death and Differentiation (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • European Science Foundation
  • Agence Nationale de la Recherche
  • Deutsche Krebshilfe
  • Institut National Du Cancer
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
autophagy, CD8+ T cells, cross-presentation, immunogenic cell death, apoptosis, caspase-independent cell death, ATG5, MHC class I, type I interferon, viral infection, dendritic cells, cancer immunotherapy
MeSH terms
Autophagy-Related Protein 5, Animals, Autophagy, Dendritic Cells, Fibroblasts, Humans, Interferon Type I, Lymphocyte Activation, Major Histocompatibility Complex, Mice, Inbred BALB C, Mice, Inbred C57BL, Microtubule-Associated Proteins, Orthomyxoviridae Infections, Influenza A virus, Apoptosis, Antigen Presentation, Mice, Knockout, CD8-Positive T-Lymphocytes, RNA, Small Interfering, Calreticulin, Cross-Priming, bcl-2 Homologous Antagonist-Killer Protein, bcl-2-Associated X Protein, Mice, Gene Knockdown Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review